Fix start delay being the same across threads
[fio.git] / init.c
1 /*
2  * This file contains job initialization and setup functions.
3  */
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <unistd.h>
7 #include <ctype.h>
8 #include <string.h>
9 #include <errno.h>
10 #include <sys/ipc.h>
11 #include <sys/types.h>
12 #include <dlfcn.h>
13 #ifdef CONFIG_VALGRIND_DEV
14 #include <valgrind/drd.h>
15 #else
16 #define DRD_IGNORE_VAR(x) do { } while (0)
17 #endif
18
19 #include "fio.h"
20 #ifndef FIO_NO_HAVE_SHM_H
21 #include <sys/shm.h>
22 #endif
23
24 #include "parse.h"
25 #include "smalloc.h"
26 #include "filehash.h"
27 #include "verify.h"
28 #include "profile.h"
29 #include "server.h"
30 #include "idletime.h"
31 #include "filelock.h"
32 #include "steadystate.h"
33
34 #include "oslib/getopt.h"
35 #include "oslib/strcasestr.h"
36
37 #include "crc/test.h"
38 #include "lib/pow2.h"
39 #include "lib/memcpy.h"
40
41 const char fio_version_string[] = FIO_VERSION;
42
43 #define FIO_RANDSEED            (0xb1899bedUL)
44
45 static char **ini_file;
46 static int max_jobs = FIO_MAX_JOBS;
47 static int dump_cmdline;
48 static int parse_only;
49
50 static struct thread_data def_thread;
51 struct thread_data *threads = NULL;
52 static char **job_sections;
53 static int nr_job_sections;
54
55 int exitall_on_terminate = 0;
56 int output_format = FIO_OUTPUT_NORMAL;
57 int eta_print = FIO_ETA_AUTO;
58 unsigned int eta_interval_msec = 1000;
59 int eta_new_line = 0;
60 FILE *f_out = NULL;
61 FILE *f_err = NULL;
62 char *exec_profile = NULL;
63 int warnings_fatal = 0;
64 int terse_version = 3;
65 int is_backend = 0;
66 int nr_clients = 0;
67 int log_syslog = 0;
68
69 int write_bw_log = 0;
70 int read_only = 0;
71 int status_interval = 0;
72
73 char *trigger_file = NULL;
74 long long trigger_timeout = 0;
75 char *trigger_cmd = NULL;
76 char *trigger_remote_cmd = NULL;
77
78 char *aux_path = NULL;
79
80 static int prev_group_jobs;
81
82 unsigned long fio_debug = 0;
83 unsigned int fio_debug_jobno = -1;
84 unsigned int *fio_debug_jobp = NULL;
85 unsigned int *fio_warned = NULL;
86
87 static char cmd_optstr[256];
88 static bool did_arg;
89
90 #define FIO_CLIENT_FLAG         (1 << 16)
91
92 /*
93  * Command line options. These will contain the above, plus a few
94  * extra that only pertain to fio itself and not jobs.
95  */
96 static struct option l_opts[FIO_NR_OPTIONS] = {
97         {
98                 .name           = (char *) "output",
99                 .has_arg        = required_argument,
100                 .val            = 'o' | FIO_CLIENT_FLAG,
101         },
102         {
103                 .name           = (char *) "latency-log",
104                 .has_arg        = required_argument,
105                 .val            = 'l' | FIO_CLIENT_FLAG,
106         },
107         {
108                 .name           = (char *) "bandwidth-log",
109                 .has_arg        = no_argument,
110                 .val            = 'b' | FIO_CLIENT_FLAG,
111         },
112         {
113                 .name           = (char *) "minimal",
114                 .has_arg        = no_argument,
115                 .val            = 'm' | FIO_CLIENT_FLAG,
116         },
117         {
118                 .name           = (char *) "output-format",
119                 .has_arg        = required_argument,
120                 .val            = 'F' | FIO_CLIENT_FLAG,
121         },
122         {
123                 .name           = (char *) "append-terse",
124                 .has_arg        = optional_argument,
125                 .val            = 'f',
126         },
127         {
128                 .name           = (char *) "version",
129                 .has_arg        = no_argument,
130                 .val            = 'v' | FIO_CLIENT_FLAG,
131         },
132         {
133                 .name           = (char *) "help",
134                 .has_arg        = no_argument,
135                 .val            = 'h' | FIO_CLIENT_FLAG,
136         },
137         {
138                 .name           = (char *) "cmdhelp",
139                 .has_arg        = optional_argument,
140                 .val            = 'c' | FIO_CLIENT_FLAG,
141         },
142         {
143                 .name           = (char *) "enghelp",
144                 .has_arg        = optional_argument,
145                 .val            = 'i' | FIO_CLIENT_FLAG,
146         },
147         {
148                 .name           = (char *) "showcmd",
149                 .has_arg        = no_argument,
150                 .val            = 's' | FIO_CLIENT_FLAG,
151         },
152         {
153                 .name           = (char *) "readonly",
154                 .has_arg        = no_argument,
155                 .val            = 'r' | FIO_CLIENT_FLAG,
156         },
157         {
158                 .name           = (char *) "eta",
159                 .has_arg        = required_argument,
160                 .val            = 'e' | FIO_CLIENT_FLAG,
161         },
162         {
163                 .name           = (char *) "eta-interval",
164                 .has_arg        = required_argument,
165                 .val            = 'O' | FIO_CLIENT_FLAG,
166         },
167         {
168                 .name           = (char *) "eta-newline",
169                 .has_arg        = required_argument,
170                 .val            = 'E' | FIO_CLIENT_FLAG,
171         },
172         {
173                 .name           = (char *) "debug",
174                 .has_arg        = required_argument,
175                 .val            = 'd' | FIO_CLIENT_FLAG,
176         },
177         {
178                 .name           = (char *) "parse-only",
179                 .has_arg        = no_argument,
180                 .val            = 'P' | FIO_CLIENT_FLAG,
181         },
182         {
183                 .name           = (char *) "section",
184                 .has_arg        = required_argument,
185                 .val            = 'x' | FIO_CLIENT_FLAG,
186         },
187 #ifdef CONFIG_ZLIB
188         {
189                 .name           = (char *) "inflate-log",
190                 .has_arg        = required_argument,
191                 .val            = 'X' | FIO_CLIENT_FLAG,
192         },
193 #endif
194         {
195                 .name           = (char *) "alloc-size",
196                 .has_arg        = required_argument,
197                 .val            = 'a' | FIO_CLIENT_FLAG,
198         },
199         {
200                 .name           = (char *) "profile",
201                 .has_arg        = required_argument,
202                 .val            = 'p' | FIO_CLIENT_FLAG,
203         },
204         {
205                 .name           = (char *) "warnings-fatal",
206                 .has_arg        = no_argument,
207                 .val            = 'w' | FIO_CLIENT_FLAG,
208         },
209         {
210                 .name           = (char *) "max-jobs",
211                 .has_arg        = required_argument,
212                 .val            = 'j' | FIO_CLIENT_FLAG,
213         },
214         {
215                 .name           = (char *) "terse-version",
216                 .has_arg        = required_argument,
217                 .val            = 'V' | FIO_CLIENT_FLAG,
218         },
219         {
220                 .name           = (char *) "server",
221                 .has_arg        = optional_argument,
222                 .val            = 'S',
223         },
224         {       .name           = (char *) "daemonize",
225                 .has_arg        = required_argument,
226                 .val            = 'D',
227         },
228         {
229                 .name           = (char *) "client",
230                 .has_arg        = required_argument,
231                 .val            = 'C',
232         },
233         {
234                 .name           = (char *) "remote-config",
235                 .has_arg        = required_argument,
236                 .val            = 'R',
237         },
238         {
239                 .name           = (char *) "cpuclock-test",
240                 .has_arg        = no_argument,
241                 .val            = 'T',
242         },
243         {
244                 .name           = (char *) "crctest",
245                 .has_arg        = optional_argument,
246                 .val            = 'G',
247         },
248         {
249                 .name           = (char *) "memcpytest",
250                 .has_arg        = optional_argument,
251                 .val            = 'M',
252         },
253         {
254                 .name           = (char *) "idle-prof",
255                 .has_arg        = required_argument,
256                 .val            = 'I',
257         },
258         {
259                 .name           = (char *) "status-interval",
260                 .has_arg        = required_argument,
261                 .val            = 'L',
262         },
263         {
264                 .name           = (char *) "trigger-file",
265                 .has_arg        = required_argument,
266                 .val            = 'W',
267         },
268         {
269                 .name           = (char *) "trigger-timeout",
270                 .has_arg        = required_argument,
271                 .val            = 'B',
272         },
273         {
274                 .name           = (char *) "trigger",
275                 .has_arg        = required_argument,
276                 .val            = 'H',
277         },
278         {
279                 .name           = (char *) "trigger-remote",
280                 .has_arg        = required_argument,
281                 .val            = 'J',
282         },
283         {
284                 .name           = (char *) "aux-path",
285                 .has_arg        = required_argument,
286                 .val            = 'K',
287         },
288         {
289                 .name           = NULL,
290         },
291 };
292
293 void free_threads_shm(void)
294 {
295         if (threads) {
296                 void *tp = threads;
297 #ifndef CONFIG_NO_SHM
298                 struct shmid_ds sbuf;
299
300                 threads = NULL;
301                 shmdt(tp);
302                 shmctl(shm_id, IPC_RMID, &sbuf);
303                 shm_id = -1;
304 #else
305                 threads = NULL;
306                 free(tp);
307 #endif
308         }
309 }
310
311 static void free_shm(void)
312 {
313         if (threads) {
314                 flow_exit();
315                 fio_debug_jobp = NULL;
316                 fio_warned = NULL;
317                 free_threads_shm();
318         }
319
320         free(trigger_file);
321         free(trigger_cmd);
322         free(trigger_remote_cmd);
323         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
324
325         options_free(fio_options, &def_thread.o);
326         fio_filelock_exit();
327         file_hash_exit();
328         scleanup();
329 }
330
331 /*
332  * The thread area is shared between the main process and the job
333  * threads/processes. So setup a shared memory segment that will hold
334  * all the job info. We use the end of the region for keeping track of
335  * open files across jobs, for file sharing.
336  */
337 static int setup_thread_area(void)
338 {
339         int i;
340
341         if (threads)
342                 return 0;
343
344         /*
345          * 1024 is too much on some machines, scale max_jobs if
346          * we get a failure that looks like too large a shm segment
347          */
348         do {
349                 size_t size = max_jobs * sizeof(struct thread_data);
350
351                 size += 2 * sizeof(unsigned int);
352
353 #ifndef CONFIG_NO_SHM
354                 shm_id = shmget(0, size, IPC_CREAT | 0600);
355                 if (shm_id != -1)
356                         break;
357                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
358                         perror("shmget");
359                         break;
360                 }
361 #else
362                 threads = malloc(size);
363                 if (threads)
364                         break;
365 #endif
366
367                 max_jobs >>= 1;
368         } while (max_jobs);
369
370 #ifndef CONFIG_NO_SHM
371         if (shm_id == -1)
372                 return 1;
373
374         threads = shmat(shm_id, NULL, 0);
375         if (threads == (void *) -1) {
376                 perror("shmat");
377                 return 1;
378         }
379         if (shm_attach_to_open_removed())
380                 shmctl(shm_id, IPC_RMID, NULL);
381 #endif
382
383         memset(threads, 0, max_jobs * sizeof(struct thread_data));
384         for (i = 0; i < max_jobs; i++)
385                 DRD_IGNORE_VAR(threads[i]);
386         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
387         *fio_debug_jobp = -1;
388         fio_warned = fio_debug_jobp + 1;
389         *fio_warned = 0;
390
391         flow_init();
392
393         return 0;
394 }
395
396 static void dump_print_option(struct print_option *p)
397 {
398         const char *delim;
399
400         if (!strcmp("description", p->name))
401                 delim = "\"";
402         else
403                 delim = "";
404
405         log_info("--%s%s", p->name, p->value ? "" : " ");
406         if (p->value)
407                 log_info("=%s%s%s ", delim, p->value, delim);
408 }
409
410 static void dump_opt_list(struct thread_data *td)
411 {
412         struct flist_head *entry;
413         struct print_option *p;
414
415         if (flist_empty(&td->opt_list))
416                 return;
417
418         flist_for_each(entry, &td->opt_list) {
419                 p = flist_entry(entry, struct print_option, list);
420                 dump_print_option(p);
421         }
422 }
423
424 static void fio_dump_options_free(struct thread_data *td)
425 {
426         while (!flist_empty(&td->opt_list)) {
427                 struct print_option *p;
428
429                 p = flist_first_entry(&td->opt_list, struct print_option, list);
430                 flist_del_init(&p->list);
431                 free(p->name);
432                 free(p->value);
433                 free(p);
434         }
435 }
436
437 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
438 {
439         struct flist_head *entry;
440
441         if (flist_empty(&src->opt_list))
442                 return;
443
444         flist_for_each(entry, &src->opt_list) {
445                 struct print_option *srcp, *dstp;
446
447                 srcp = flist_entry(entry, struct print_option, list);
448                 dstp = malloc(sizeof(*dstp));
449                 dstp->name = strdup(srcp->name);
450                 if (srcp->value)
451                         dstp->value = strdup(srcp->value);
452                 else
453                         dstp->value = NULL;
454                 flist_add_tail(&dstp->list, &dst->opt_list);
455         }
456 }
457
458 /*
459  * Return a free job structure.
460  */
461 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
462                                        bool preserve_eo, const char *jobname)
463 {
464         struct thread_data *td;
465
466         if (global)
467                 return &def_thread;
468         if (setup_thread_area()) {
469                 log_err("error: failed to setup shm segment\n");
470                 return NULL;
471         }
472         if (thread_number >= max_jobs) {
473                 log_err("error: maximum number of jobs (%d) reached.\n",
474                                 max_jobs);
475                 return NULL;
476         }
477
478         td = &threads[thread_number++];
479         *td = *parent;
480
481         INIT_FLIST_HEAD(&td->opt_list);
482         if (parent != &def_thread)
483                 copy_opt_list(td, parent);
484
485         td->io_ops = NULL;
486         td->io_ops_init = 0;
487         if (!preserve_eo)
488                 td->eo = NULL;
489
490         td->o.uid = td->o.gid = -1U;
491
492         dup_files(td, parent);
493         fio_options_mem_dupe(td);
494
495         profile_add_hooks(td);
496
497         td->thread_number = thread_number;
498         td->subjob_number = 0;
499
500         if (jobname)
501                 td->o.name = strdup(jobname);
502
503         if (!parent->o.group_reporting || parent == &def_thread)
504                 stat_number++;
505
506         return td;
507 }
508
509 static void put_job(struct thread_data *td)
510 {
511         if (td == &def_thread)
512                 return;
513
514         profile_td_exit(td);
515         flow_exit_job(td);
516
517         if (td->error)
518                 log_info("fio: %s\n", td->verror);
519
520         fio_options_free(td);
521         fio_dump_options_free(td);
522         if (td->io_ops)
523                 free_ioengine(td);
524
525         if (td->o.name)
526                 free(td->o.name);
527
528         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
529         thread_number--;
530 }
531
532 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
533 {
534         unsigned int bs = td->o.min_bs[ddir];
535
536         assert(ddir_rw(ddir));
537
538         if (td->o.rate[ddir])
539                 td->rate_bps[ddir] = td->o.rate[ddir];
540         else
541                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
542
543         if (!td->rate_bps[ddir]) {
544                 log_err("rate lower than supported\n");
545                 return -1;
546         }
547
548         td->rate_next_io_time[ddir] = 0;
549         td->rate_io_issue_bytes[ddir] = 0;
550         td->last_usec[ddir] = 0;
551         return 0;
552 }
553
554 static int setup_rate(struct thread_data *td)
555 {
556         int ret = 0;
557
558         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
559                 ret = __setup_rate(td, DDIR_READ);
560         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
561                 ret |= __setup_rate(td, DDIR_WRITE);
562         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
563                 ret |= __setup_rate(td, DDIR_TRIM);
564
565         return ret;
566 }
567
568 static int fixed_block_size(struct thread_options *o)
569 {
570         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
571                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
572                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
573                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
574                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
575 }
576
577
578 static unsigned long long get_rand_start_delay(struct thread_data *td)
579 {
580         unsigned long long delayrange;
581         uint64_t r, frand_max;
582
583         delayrange = td->o.start_delay_high - td->o.start_delay;
584
585         frand_max = rand_max(&td->delay_state);
586         r = __rand(&td->delay_state);
587         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
588
589         delayrange += td->o.start_delay_orig;
590         return delayrange;
591 }
592
593 /*
594  * <3 Johannes
595  */
596 static unsigned int gcd(unsigned int m, unsigned int n)
597 {
598         if (!n)
599                 return m;
600
601         return gcd(n, m % n);
602 }
603
604 /*
605  * Lazy way of fixing up options that depend on each other. We could also
606  * define option callback handlers, but this is easier.
607  */
608 static int fixup_options(struct thread_data *td)
609 {
610         struct thread_options *o = &td->o;
611         int ret = 0;
612
613 #ifndef CONFIG_PSHARED
614         if (!o->use_thread) {
615                 log_info("fio: this platform does not support process shared"
616                          " mutexes, forcing use of threads. Use the 'thread'"
617                          " option to get rid of this warning.\n");
618                 o->use_thread = 1;
619                 ret = warnings_fatal;
620         }
621 #endif
622
623         if (o->write_iolog_file && o->read_iolog_file) {
624                 log_err("fio: read iolog overrides write_iolog\n");
625                 free(o->write_iolog_file);
626                 o->write_iolog_file = NULL;
627                 ret = warnings_fatal;
628         }
629
630         /*
631          * only really works with 1 file
632          */
633         if (o->zone_size && o->open_files > 1)
634                 o->zone_size = 0;
635
636         /*
637          * If zone_range isn't specified, backward compatibility dictates it
638          * should be made equal to zone_size.
639          */
640         if (o->zone_size && !o->zone_range)
641                 o->zone_range = o->zone_size;
642
643         /*
644          * Reads can do overwrites, we always need to pre-create the file
645          */
646         if (td_read(td))
647                 o->overwrite = 1;
648
649         if (!o->min_bs[DDIR_READ])
650                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
651         if (!o->max_bs[DDIR_READ])
652                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
653         if (!o->min_bs[DDIR_WRITE])
654                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
655         if (!o->max_bs[DDIR_WRITE])
656                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
657         if (!o->min_bs[DDIR_TRIM])
658                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
659         if (!o->max_bs[DDIR_TRIM])
660                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
661
662         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
663         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
664
665         /*
666          * For random IO, allow blockalign offset other than min_bs.
667          */
668         if (!o->ba[DDIR_READ] || !td_random(td))
669                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
670         if (!o->ba[DDIR_WRITE] || !td_random(td))
671                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
672         if (!o->ba[DDIR_TRIM] || !td_random(td))
673                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
674
675         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
676             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
677             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
678             !o->norandommap) {
679                 log_err("fio: Any use of blockalign= turns off randommap\n");
680                 o->norandommap = 1;
681                 ret = warnings_fatal;
682         }
683
684         if (!o->file_size_high)
685                 o->file_size_high = o->file_size_low;
686
687         if (o->start_delay_high) {
688                 if (!o->start_delay_orig)
689                         o->start_delay_orig = o->start_delay;
690                 o->start_delay = get_rand_start_delay(td);
691         }
692
693         if (o->norandommap && o->verify != VERIFY_NONE
694             && !fixed_block_size(o))  {
695                 log_err("fio: norandommap given for variable block sizes, "
696                         "verify limited\n");
697                 ret = warnings_fatal;
698         }
699         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
700                 log_err("fio: bs_unaligned may not work with raw io\n");
701
702         /*
703          * thinktime_spin must be less than thinktime
704          */
705         if (o->thinktime_spin > o->thinktime)
706                 o->thinktime_spin = o->thinktime;
707
708         /*
709          * The low water mark cannot be bigger than the iodepth
710          */
711         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
712                 o->iodepth_low = o->iodepth;
713
714         /*
715          * If batch number isn't set, default to the same as iodepth
716          */
717         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
718                 o->iodepth_batch = o->iodepth;
719
720         /*
721          * If max batch complete number isn't set or set incorrectly,
722          * default to the same as iodepth_batch_complete_min
723          */
724         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
725                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
726
727         /*
728          * There's no need to check for in-flight overlapping IOs if the job
729          * isn't changing data or the maximum iodepth is guaranteed to be 1
730          */
731         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
732             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
733                 o->serialize_overlap = 0;
734         /*
735          * Currently can't check for overlaps in offload mode
736          */
737         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
738                 log_err("fio: checking for in-flight overlaps when the "
739                         "io_submit_mode is offload is not supported\n");
740                 o->serialize_overlap = 0;
741                 ret = warnings_fatal;
742         }
743
744         if (o->nr_files > td->files_index)
745                 o->nr_files = td->files_index;
746
747         if (o->open_files > o->nr_files || !o->open_files)
748                 o->open_files = o->nr_files;
749
750         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
751             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
752             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
753             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
754                 log_err("fio: rate and rate_iops are mutually exclusive\n");
755                 ret = 1;
756         }
757         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
758             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
759             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
760             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
761             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
762             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
763                 log_err("fio: minimum rate exceeds rate\n");
764                 ret = 1;
765         }
766
767         if (!o->timeout && o->time_based) {
768                 log_err("fio: time_based requires a runtime/timeout setting\n");
769                 o->time_based = 0;
770                 ret = warnings_fatal;
771         }
772
773         if (o->fill_device && !o->size)
774                 o->size = -1ULL;
775
776         if (o->verify != VERIFY_NONE) {
777                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
778                     (o->filename ||
779                      !(o->unique_filename &&
780                        strstr(o->filename_format, "$jobname") &&
781                        strstr(o->filename_format, "$jobnum") &&
782                        strstr(o->filename_format, "$filenum")))) {
783                         log_info("fio: multiple writers may overwrite blocks "
784                                 "that belong to other jobs. This can cause "
785                                 "verification failures.\n");
786                         ret = warnings_fatal;
787                 }
788
789                 /*
790                  * Warn if verification is requested but no verification of any
791                  * kind can be started due to time constraints
792                  */
793                 if (td_write(td) && o->do_verify && o->timeout &&
794                     o->time_based && !td_read(td) && !o->verify_backlog) {
795                         log_info("fio: verification read phase will never "
796                                  "start because write phase uses all of "
797                                  "runtime\n");
798                         ret = warnings_fatal;
799                 }
800
801                 if (!fio_option_is_set(o, refill_buffers))
802                         o->refill_buffers = 1;
803
804                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
805                     !o->verify_interval)
806                         o->verify_interval = o->min_bs[DDIR_WRITE];
807
808                 /*
809                  * Verify interval must be smaller or equal to the
810                  * write size.
811                  */
812                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
813                         o->verify_interval = o->min_bs[DDIR_WRITE];
814                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
815                         o->verify_interval = o->min_bs[DDIR_READ];
816
817                 /*
818                  * Verify interval must be a factor of both min and max
819                  * write size
820                  */
821                 if (!o->verify_interval ||
822                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
823                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
824                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
825                                                         o->max_bs[DDIR_WRITE]);
826         }
827
828         if (o->pre_read) {
829                 if (o->invalidate_cache)
830                         o->invalidate_cache = 0;
831                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
832                         log_info("fio: cannot pre-read files with an IO engine"
833                                  " that isn't seekable. Pre-read disabled.\n");
834                         ret = warnings_fatal;
835                 }
836         }
837
838         if (o->unit_base == N2S_NONE) {
839                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
840                         o->unit_base = N2S_BITPERSEC;
841                 else
842                         o->unit_base = N2S_BYTEPERSEC;
843         }
844
845 #ifndef FIO_HAVE_ANY_FALLOCATE
846         /* Platform doesn't support any fallocate so force it to none */
847         o->fallocate_mode = FIO_FALLOCATE_NONE;
848 #endif
849
850 #ifndef CONFIG_FDATASYNC
851         if (o->fdatasync_blocks) {
852                 log_info("fio: this platform does not support fdatasync()"
853                          " falling back to using fsync().  Use the 'fsync'"
854                          " option instead of 'fdatasync' to get rid of"
855                          " this warning\n");
856                 o->fsync_blocks = o->fdatasync_blocks;
857                 o->fdatasync_blocks = 0;
858                 ret = warnings_fatal;
859         }
860 #endif
861
862 #ifdef WIN32
863         /*
864          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
865          * so fail if we're passed those flags
866          */
867         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
868                 log_err("fio: Windows does not support direct or non-buffered io with"
869                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
870                                 " with 'direct=1' and 'iodepth=1' instead.\n");
871                 ret = 1;
872         }
873 #endif
874
875         /*
876          * For fully compressible data, just zero them at init time.
877          * It's faster than repeatedly filling it. For non-zero
878          * compression, we should have refill_buffers set. Set it, unless
879          * the job file already changed it.
880          */
881         if (o->compress_percentage) {
882                 if (o->compress_percentage == 100) {
883                         o->zero_buffers = 1;
884                         o->compress_percentage = 0;
885                 } else if (!fio_option_is_set(o, refill_buffers)) {
886                         o->refill_buffers = 1;
887                         td->flags |= TD_F_REFILL_BUFFERS;
888                 }
889         }
890
891         /*
892          * Using a non-uniform random distribution excludes usage of
893          * a random map
894          */
895         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
896                 o->norandommap = 1;
897
898         /*
899          * If size is set but less than the min block size, complain
900          */
901         if (o->size && o->size < td_min_bs(td)) {
902                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
903                         (unsigned long long) o->size, td_min_bs(td));
904                 ret = 1;
905         }
906
907         /*
908          * O_ATOMIC implies O_DIRECT
909          */
910         if (o->oatomic)
911                 o->odirect = 1;
912
913         /*
914          * If randseed is set, that overrides randrepeat
915          */
916         if (fio_option_is_set(o, rand_seed))
917                 o->rand_repeatable = 0;
918
919         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
920                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
921                 ret = 1;
922         }
923
924         if (fio_option_is_set(o, gtod_cpu)) {
925                 fio_gtod_init();
926                 fio_gtod_set_cpu(o->gtod_cpu);
927                 fio_gtod_offload = 1;
928         }
929
930         td->loops = o->loops;
931         if (!td->loops)
932                 td->loops = 1;
933
934         if (o->block_error_hist && o->nr_files != 1) {
935                 log_err("fio: block error histogram only available "
936                         "with a single file per job, but %d files "
937                         "provided\n", o->nr_files);
938                 ret = 1;
939         }
940
941         if (fio_option_is_set(o, clat_percentiles) &&
942             !fio_option_is_set(o, lat_percentiles)) {
943                 o->lat_percentiles = !o->clat_percentiles;
944         } else if (fio_option_is_set(o, lat_percentiles) &&
945                    !fio_option_is_set(o, clat_percentiles)) {
946                 o->clat_percentiles = !o->lat_percentiles;
947         } else if (fio_option_is_set(o, lat_percentiles) &&
948                    fio_option_is_set(o, clat_percentiles) &&
949                    o->lat_percentiles && o->clat_percentiles) {
950                 log_err("fio: lat_percentiles and clat_percentiles are "
951                         "mutually exclusive\n");
952                 ret = 1;
953         }
954
955         if (o->disable_lat)
956                 o->lat_percentiles = 0;
957         if (o->disable_clat)
958                 o->clat_percentiles = 0;
959
960         /*
961          * Fix these up to be nsec internally
962          */
963         o->max_latency *= 1000ULL;
964         o->latency_target *= 1000ULL;
965         o->latency_window *= 1000ULL;
966
967         return ret;
968 }
969
970 static void init_rand_file_service(struct thread_data *td)
971 {
972         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
973         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
974
975         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
976                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
977                 zipf_disable_hash(&td->next_file_zipf);
978         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
979                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
980                 zipf_disable_hash(&td->next_file_zipf);
981         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
982                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
983                 gauss_disable_hash(&td->next_file_gauss);
984         }
985 }
986
987 void td_fill_verify_state_seed(struct thread_data *td)
988 {
989         bool use64;
990
991         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
992                 use64 = true;
993         else
994                 use64 = false;
995
996         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
997                 use64);
998 }
999
1000 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
1001 {
1002         unsigned int read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
1003         unsigned int write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
1004         unsigned int trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
1005         int i;
1006
1007         /*
1008          * trimwrite is special in that we need to generate the same
1009          * offsets to get the "write after trim" effect. If we are
1010          * using bssplit to set buffer length distributions, ensure that
1011          * we seed the trim and write generators identically. Ditto for
1012          * verify, read and writes must have the same seed, if we are doing
1013          * read verify.
1014          */
1015         if (td->o.verify != VERIFY_NONE)
1016                 write_seed = read_seed;
1017         if (td_trimwrite(td))
1018                 trim_seed = write_seed;
1019         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1020         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1021         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1022
1023         td_fill_verify_state_seed(td);
1024         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1025
1026         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1027                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1028         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1029                 init_rand_file_service(td);
1030
1031         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1032         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1033         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1034         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1035         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1036         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1037         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1038         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1039
1040         if (!td_random(td))
1041                 return;
1042
1043         if (td->o.rand_repeatable)
1044                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1045
1046         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1047
1048         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1049                 struct frand_state *s = &td->seq_rand_state[i];
1050
1051                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1052         }
1053 }
1054
1055 void td_fill_rand_seeds(struct thread_data *td)
1056 {
1057         bool use64;
1058
1059         if (td->o.allrand_repeatable) {
1060                 unsigned int i;
1061
1062                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1063                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1064                                 + i;
1065         }
1066
1067         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1068                 use64 = true;
1069         else
1070                 use64 = false;
1071
1072         td_fill_rand_seeds_internal(td, use64);
1073
1074         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1075         frand_copy(&td->buf_state_prev, &td->buf_state);
1076 }
1077
1078 /*
1079  * Initializes the ioengine configured for a job, if it has not been done so
1080  * already.
1081  */
1082 int ioengine_load(struct thread_data *td)
1083 {
1084         if (!td->o.ioengine) {
1085                 log_err("fio: internal fault, no IO engine specified\n");
1086                 return 1;
1087         }
1088
1089         if (td->io_ops) {
1090                 struct ioengine_ops *ops;
1091                 void *dlhandle;
1092
1093                 /* An engine is loaded, but the requested ioengine
1094                  * may have changed.
1095                  */
1096                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1097                         /* The right engine is already loaded */
1098                         return 0;
1099                 }
1100
1101                 /*
1102                  * Name of file and engine may be different, load ops
1103                  * for this name and see if they match. If they do, then
1104                  * the engine is unchanged.
1105                  */
1106                 dlhandle = td->io_ops_dlhandle;
1107                 ops = load_ioengine(td);
1108                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1109                         if (dlhandle)
1110                                 dlclose(dlhandle);
1111                         return 0;
1112                 }
1113
1114                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1115                         dlclose(dlhandle);
1116
1117                 /* Unload the old engine. */
1118                 free_ioengine(td);
1119         }
1120
1121         td->io_ops = load_ioengine(td);
1122         if (!td->io_ops) {
1123                 log_err("fio: failed to load engine\n");
1124                 return 1;
1125         }
1126
1127         if (td->io_ops->option_struct_size && td->io_ops->options) {
1128                 /*
1129                  * In cases where td->eo is set, clone it for a child thread.
1130                  * This requires that the parent thread has the same ioengine,
1131                  * but that requirement must be enforced by the code which
1132                  * cloned the thread.
1133                  */
1134                 void *origeo = td->eo;
1135                 /*
1136                  * Otherwise use the default thread options.
1137                  */
1138                 if (!origeo && td != &def_thread && def_thread.eo &&
1139                     def_thread.io_ops->options == td->io_ops->options)
1140                         origeo = def_thread.eo;
1141
1142                 options_init(td->io_ops->options);
1143                 td->eo = malloc(td->io_ops->option_struct_size);
1144                 /*
1145                  * Use the default thread as an option template if this uses the
1146                  * same options structure and there are non-default options
1147                  * used.
1148                  */
1149                 if (origeo) {
1150                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1151                         options_mem_dupe(td->io_ops->options, td->eo);
1152                 } else {
1153                         memset(td->eo, 0, td->io_ops->option_struct_size);
1154                         fill_default_options(td->eo, td->io_ops->options);
1155                 }
1156                 *(struct thread_data **)td->eo = td;
1157         }
1158
1159         if (td->o.odirect)
1160                 td->io_ops->flags |= FIO_RAWIO;
1161
1162         td_set_ioengine_flags(td);
1163         return 0;
1164 }
1165
1166 static void init_flags(struct thread_data *td)
1167 {
1168         struct thread_options *o = &td->o;
1169         int i;
1170
1171         if (o->verify_backlog)
1172                 td->flags |= TD_F_VER_BACKLOG;
1173         if (o->trim_backlog)
1174                 td->flags |= TD_F_TRIM_BACKLOG;
1175         if (o->read_iolog_file)
1176                 td->flags |= TD_F_READ_IOLOG;
1177         if (o->refill_buffers)
1178                 td->flags |= TD_F_REFILL_BUFFERS;
1179         /*
1180          * Always scramble buffers if asked to
1181          */
1182         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1183                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1184         /*
1185          * But also scramble buffers, unless we were explicitly asked
1186          * to zero them.
1187          */
1188         if (o->scramble_buffers && !(o->zero_buffers &&
1189             fio_option_is_set(o, zero_buffers)))
1190                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1191         if (o->verify != VERIFY_NONE)
1192                 td->flags |= TD_F_DO_VERIFY;
1193
1194         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1195                 td->flags |= TD_F_NEED_LOCK;
1196
1197         if (o->mem_type == MEM_CUDA_MALLOC)
1198                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1199
1200         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1201                 if (option_check_rate(td, i)) {
1202                         td->flags |= TD_F_CHECK_RATE;
1203                         break;
1204                 }
1205         }
1206 }
1207
1208 static int setup_random_seeds(struct thread_data *td)
1209 {
1210         unsigned long seed;
1211         unsigned int i;
1212
1213         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1214                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1215                 if (!ret)
1216                         td_fill_rand_seeds(td);
1217                 return ret;
1218         }
1219
1220         seed = td->o.rand_seed;
1221         for (i = 0; i < 4; i++)
1222                 seed *= 0x9e370001UL;
1223
1224         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1225                 td->rand_seeds[i] = seed * td->thread_number + i;
1226                 seed *= 0x9e370001UL;
1227         }
1228
1229         td_fill_rand_seeds(td);
1230         return 0;
1231 }
1232
1233 enum {
1234         FPRE_NONE = 0,
1235         FPRE_JOBNAME,
1236         FPRE_JOBNUM,
1237         FPRE_FILENUM
1238 };
1239
1240 static struct fpre_keyword {
1241         const char *keyword;
1242         size_t strlen;
1243         int key;
1244 } fpre_keywords[] = {
1245         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1246         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1247         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1248         { .keyword = NULL, },
1249         };
1250
1251 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1252                            const char *jobname, int jobnum, int filenum)
1253 {
1254         struct fpre_keyword *f;
1255         char copy[PATH_MAX];
1256         size_t dst_left = PATH_MAX - 1;
1257
1258         if (!o->filename_format || !strlen(o->filename_format)) {
1259                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1260                 return buf;
1261         }
1262
1263         for (f = &fpre_keywords[0]; f->keyword; f++)
1264                 f->strlen = strlen(f->keyword);
1265
1266         buf[buf_size - 1] = '\0';
1267         strncpy(buf, o->filename_format, buf_size - 1);
1268
1269         memset(copy, 0, sizeof(copy));
1270         for (f = &fpre_keywords[0]; f->keyword; f++) {
1271                 do {
1272                         size_t pre_len, post_start = 0;
1273                         char *str, *dst = copy;
1274
1275                         str = strcasestr(buf, f->keyword);
1276                         if (!str)
1277                                 break;
1278
1279                         pre_len = str - buf;
1280                         if (strlen(str) != f->strlen)
1281                                 post_start = pre_len + f->strlen;
1282
1283                         if (pre_len) {
1284                                 strncpy(dst, buf, pre_len);
1285                                 dst += pre_len;
1286                                 dst_left -= pre_len;
1287                         }
1288
1289                         switch (f->key) {
1290                         case FPRE_JOBNAME: {
1291                                 int ret;
1292
1293                                 ret = snprintf(dst, dst_left, "%s", jobname);
1294                                 if (ret < 0)
1295                                         break;
1296                                 else if (ret > dst_left) {
1297                                         log_err("fio: truncated filename\n");
1298                                         dst += dst_left;
1299                                         dst_left = 0;
1300                                 } else {
1301                                         dst += ret;
1302                                         dst_left -= ret;
1303                                 }
1304                                 break;
1305                                 }
1306                         case FPRE_JOBNUM: {
1307                                 int ret;
1308
1309                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1310                                 if (ret < 0)
1311                                         break;
1312                                 else if (ret > dst_left) {
1313                                         log_err("fio: truncated filename\n");
1314                                         dst += dst_left;
1315                                         dst_left = 0;
1316                                 } else {
1317                                         dst += ret;
1318                                         dst_left -= ret;
1319                                 }
1320                                 break;
1321                                 }
1322                         case FPRE_FILENUM: {
1323                                 int ret;
1324
1325                                 ret = snprintf(dst, dst_left, "%d", filenum);
1326                                 if (ret < 0)
1327                                         break;
1328                                 else if (ret > dst_left) {
1329                                         log_err("fio: truncated filename\n");
1330                                         dst += dst_left;
1331                                         dst_left = 0;
1332                                 } else {
1333                                         dst += ret;
1334                                         dst_left -= ret;
1335                                 }
1336                                 break;
1337                                 }
1338                         default:
1339                                 assert(0);
1340                                 break;
1341                         }
1342
1343                         if (post_start)
1344                                 strncpy(dst, buf + post_start, dst_left);
1345
1346                         strncpy(buf, copy, buf_size - 1);
1347                 } while (1);
1348         }
1349
1350         return buf;
1351 }
1352
1353 bool parse_dryrun(void)
1354 {
1355         return dump_cmdline || parse_only;
1356 }
1357
1358 static void gen_log_name(char *name, size_t size, const char *logtype,
1359                          const char *logname, unsigned int num,
1360                          const char *suf, int per_job)
1361 {
1362         if (per_job)
1363                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1364         else
1365                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1366 }
1367
1368 static int check_waitees(char *waitee)
1369 {
1370         struct thread_data *td;
1371         int i, ret = 0;
1372
1373         for_each_td(td, i) {
1374                 if (td->subjob_number)
1375                         continue;
1376
1377                 ret += !strcmp(td->o.name, waitee);
1378         }
1379
1380         return ret;
1381 }
1382
1383 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1384 {
1385         int nw;
1386
1387         if (!o->wait_for)
1388                 return true;
1389
1390         if (!strcmp(jobname, o->wait_for)) {
1391                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1392                                 jobname, o->wait_for);
1393                 return false;
1394         }
1395
1396         if (!(nw = check_waitees(o->wait_for))) {
1397                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1398                 return false;
1399         }
1400
1401         if (nw > 1) {
1402                 log_err("%s: multiple waitees %s found,\n"
1403                         "please avoid duplicates when using wait_for option.\n",
1404                                 jobname, o->wait_for);
1405                 return false;
1406         }
1407
1408         return true;
1409 }
1410
1411 /*
1412  * Adds a job to the list of things todo. Sanitizes the various options
1413  * to make sure we don't have conflicts, and initializes various
1414  * members of td.
1415  */
1416 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1417                    int recursed, int client_type)
1418 {
1419         unsigned int i;
1420         char fname[PATH_MAX];
1421         int numjobs, file_alloced;
1422         struct thread_options *o = &td->o;
1423         char logname[PATH_MAX + 32];
1424
1425         /*
1426          * the def_thread is just for options, it's not a real job
1427          */
1428         if (td == &def_thread)
1429                 return 0;
1430
1431         init_flags(td);
1432
1433         /*
1434          * if we are just dumping the output command line, don't add the job
1435          */
1436         if (parse_dryrun()) {
1437                 put_job(td);
1438                 return 0;
1439         }
1440
1441         td->client_type = client_type;
1442
1443         if (profile_td_init(td))
1444                 goto err;
1445
1446         if (ioengine_load(td))
1447                 goto err;
1448
1449         file_alloced = 0;
1450         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1451                 file_alloced = 1;
1452
1453                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1454                         add_file(td, jobname, job_add_num, 0);
1455                 else {
1456                         for (i = 0; i < o->nr_files; i++)
1457                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1458                 }
1459         }
1460
1461         if (setup_random_seeds(td)) {
1462                 td_verror(td, errno, "setup_random_seeds");
1463                 goto err;
1464         }
1465
1466         if (fixup_options(td))
1467                 goto err;
1468
1469         /*
1470          * Belongs to fixup_options, but o->name is not necessarily set as yet
1471          */
1472         if (!wait_for_ok(jobname, o))
1473                 goto err;
1474
1475         flow_init_job(td);
1476
1477         /*
1478          * IO engines only need this for option callbacks, and the address may
1479          * change in subprocesses.
1480          */
1481         if (td->eo)
1482                 *(struct thread_data **)td->eo = NULL;
1483
1484         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1485                 struct fio_file *f;
1486
1487                 for_each_file(td, f, i)
1488                         f->real_file_size = -1ULL;
1489         }
1490
1491         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1492
1493         td->ts.clat_percentiles = o->clat_percentiles;
1494         td->ts.lat_percentiles = o->lat_percentiles;
1495         td->ts.percentile_precision = o->percentile_precision;
1496         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1497         td->ts.sig_figs = o->sig_figs;
1498
1499         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1500                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1501                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1502                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1503                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1504                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1505         }
1506         td->ts.sync_stat.min_val = ULONG_MAX;
1507         td->ddir_seq_nr = o->ddir_seq_nr;
1508
1509         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1510                 prev_group_jobs = 0;
1511                 groupid++;
1512                 if (groupid == INT_MAX) {
1513                         log_err("fio: too many groups defined\n");
1514                         goto err;
1515                 }
1516         }
1517
1518         td->groupid = groupid;
1519         prev_group_jobs++;
1520
1521         if (setup_rate(td))
1522                 goto err;
1523
1524         if (o->write_lat_log) {
1525                 struct log_params p = {
1526                         .td = td,
1527                         .avg_msec = o->log_avg_msec,
1528                         .hist_msec = o->log_hist_msec,
1529                         .hist_coarseness = o->log_hist_coarseness,
1530                         .log_type = IO_LOG_TYPE_LAT,
1531                         .log_offset = o->log_offset,
1532                         .log_gz = o->log_gz,
1533                         .log_gz_store = o->log_gz_store,
1534                 };
1535                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1536                 const char *suf;
1537
1538                 if (p.log_gz_store)
1539                         suf = "log.fz";
1540                 else
1541                         suf = "log";
1542
1543                 gen_log_name(logname, sizeof(logname), "lat", pre,
1544                                 td->thread_number, suf, o->per_job_logs);
1545                 setup_log(&td->lat_log, &p, logname);
1546
1547                 gen_log_name(logname, sizeof(logname), "slat", pre,
1548                                 td->thread_number, suf, o->per_job_logs);
1549                 setup_log(&td->slat_log, &p, logname);
1550
1551                 gen_log_name(logname, sizeof(logname), "clat", pre,
1552                                 td->thread_number, suf, o->per_job_logs);
1553                 setup_log(&td->clat_log, &p, logname);
1554         }
1555
1556         if (o->write_hist_log) {
1557                 struct log_params p = {
1558                         .td = td,
1559                         .avg_msec = o->log_avg_msec,
1560                         .hist_msec = o->log_hist_msec,
1561                         .hist_coarseness = o->log_hist_coarseness,
1562                         .log_type = IO_LOG_TYPE_HIST,
1563                         .log_offset = o->log_offset,
1564                         .log_gz = o->log_gz,
1565                         .log_gz_store = o->log_gz_store,
1566                 };
1567                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1568                 const char *suf;
1569
1570 #ifndef CONFIG_ZLIB
1571                 if (td->client_type) {
1572                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1573                         goto err;
1574                 }
1575 #endif
1576
1577                 if (p.log_gz_store)
1578                         suf = "log.fz";
1579                 else
1580                         suf = "log";
1581
1582                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1583                                 td->thread_number, suf, o->per_job_logs);
1584                 setup_log(&td->clat_hist_log, &p, logname);
1585         }
1586
1587         if (o->write_bw_log) {
1588                 struct log_params p = {
1589                         .td = td,
1590                         .avg_msec = o->log_avg_msec,
1591                         .hist_msec = o->log_hist_msec,
1592                         .hist_coarseness = o->log_hist_coarseness,
1593                         .log_type = IO_LOG_TYPE_BW,
1594                         .log_offset = o->log_offset,
1595                         .log_gz = o->log_gz,
1596                         .log_gz_store = o->log_gz_store,
1597                 };
1598                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1599                 const char *suf;
1600
1601                 if (fio_option_is_set(o, bw_avg_time))
1602                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1603                 else
1604                         o->bw_avg_time = p.avg_msec;
1605
1606                 p.hist_msec = o->log_hist_msec;
1607                 p.hist_coarseness = o->log_hist_coarseness;
1608
1609                 if (p.log_gz_store)
1610                         suf = "log.fz";
1611                 else
1612                         suf = "log";
1613
1614                 gen_log_name(logname, sizeof(logname), "bw", pre,
1615                                 td->thread_number, suf, o->per_job_logs);
1616                 setup_log(&td->bw_log, &p, logname);
1617         }
1618         if (o->write_iops_log) {
1619                 struct log_params p = {
1620                         .td = td,
1621                         .avg_msec = o->log_avg_msec,
1622                         .hist_msec = o->log_hist_msec,
1623                         .hist_coarseness = o->log_hist_coarseness,
1624                         .log_type = IO_LOG_TYPE_IOPS,
1625                         .log_offset = o->log_offset,
1626                         .log_gz = o->log_gz,
1627                         .log_gz_store = o->log_gz_store,
1628                 };
1629                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1630                 const char *suf;
1631
1632                 if (fio_option_is_set(o, iops_avg_time))
1633                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1634                 else
1635                         o->iops_avg_time = p.avg_msec;
1636
1637                 p.hist_msec = o->log_hist_msec;
1638                 p.hist_coarseness = o->log_hist_coarseness;
1639
1640                 if (p.log_gz_store)
1641                         suf = "log.fz";
1642                 else
1643                         suf = "log";
1644
1645                 gen_log_name(logname, sizeof(logname), "iops", pre,
1646                                 td->thread_number, suf, o->per_job_logs);
1647                 setup_log(&td->iops_log, &p, logname);
1648         }
1649
1650         if (!o->name)
1651                 o->name = strdup(jobname);
1652
1653         if (output_format & FIO_OUTPUT_NORMAL) {
1654                 if (!job_add_num) {
1655                         if (is_backend && !recursed)
1656                                 fio_server_send_add_job(td);
1657
1658                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1659                                 char *c1, *c2, *c3, *c4;
1660                                 char *c5 = NULL, *c6 = NULL;
1661                                 int i2p = is_power_of_2(o->kb_base);
1662
1663                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1664                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1665                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1666                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1667
1668                                 if (!o->bs_is_seq_rand) {
1669                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1670                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1671                                 }
1672
1673                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1674                                                         td->groupid,
1675                                                         ddir_str(o->td_ddir));
1676
1677                                 if (o->bs_is_seq_rand)
1678                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1679                                                         c1, c2, c3, c4);
1680                                 else
1681                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1682                                                         c1, c2, c3, c4, c5, c6);
1683
1684                                 log_info("ioengine=%s, iodepth=%u\n",
1685                                                 td->io_ops->name, o->iodepth);
1686
1687                                 free(c1);
1688                                 free(c2);
1689                                 free(c3);
1690                                 free(c4);
1691                                 free(c5);
1692                                 free(c6);
1693                         }
1694                 } else if (job_add_num == 1)
1695                         log_info("...\n");
1696         }
1697
1698         if (td_steadystate_init(td))
1699                 goto err;
1700
1701         /*
1702          * recurse add identical jobs, clear numjobs and stonewall options
1703          * as they don't apply to sub-jobs
1704          */
1705         numjobs = o->numjobs;
1706         while (--numjobs) {
1707                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1708
1709                 if (!td_new)
1710                         goto err;
1711
1712                 td_new->o.numjobs = 1;
1713                 td_new->o.stonewall = 0;
1714                 td_new->o.new_group = 0;
1715                 td_new->subjob_number = numjobs;
1716                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1717                 td_new->o.ss_limit = o->ss_limit;
1718
1719                 if (file_alloced) {
1720                         if (td_new->files) {
1721                                 struct fio_file *f;
1722                                 for_each_file(td_new, f, i) {
1723                                         if (f->file_name)
1724                                                 sfree(f->file_name);
1725                                         sfree(f);
1726                                 }
1727                                 free(td_new->files);
1728                                 td_new->files = NULL;
1729                         }
1730                         td_new->files_index = 0;
1731                         td_new->files_size = 0;
1732                         if (td_new->o.filename) {
1733                                 free(td_new->o.filename);
1734                                 td_new->o.filename = NULL;
1735                         }
1736                 }
1737
1738                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1739                         goto err;
1740         }
1741
1742         return 0;
1743 err:
1744         put_job(td);
1745         return -1;
1746 }
1747
1748 /*
1749  * Parse as if 'o' was a command line
1750  */
1751 void add_job_opts(const char **o, int client_type)
1752 {
1753         struct thread_data *td, *td_parent;
1754         int i, in_global = 1;
1755         char jobname[32];
1756
1757         i = 0;
1758         td_parent = td = NULL;
1759         while (o[i]) {
1760                 if (!strncmp(o[i], "name", 4)) {
1761                         in_global = 0;
1762                         if (td)
1763                                 add_job(td, jobname, 0, 0, client_type);
1764                         td = NULL;
1765                         sprintf(jobname, "%s", o[i] + 5);
1766                 }
1767                 if (in_global && !td_parent)
1768                         td_parent = get_new_job(true, &def_thread, false, jobname);
1769                 else if (!in_global && !td) {
1770                         if (!td_parent)
1771                                 td_parent = &def_thread;
1772                         td = get_new_job(false, td_parent, false, jobname);
1773                 }
1774                 if (in_global)
1775                         fio_options_parse(td_parent, (char **) &o[i], 1);
1776                 else
1777                         fio_options_parse(td, (char **) &o[i], 1);
1778                 i++;
1779         }
1780
1781         if (td)
1782                 add_job(td, jobname, 0, 0, client_type);
1783 }
1784
1785 static int skip_this_section(const char *name)
1786 {
1787         int i;
1788
1789         if (!nr_job_sections)
1790                 return 0;
1791         if (!strncmp(name, "global", 6))
1792                 return 0;
1793
1794         for (i = 0; i < nr_job_sections; i++)
1795                 if (!strcmp(job_sections[i], name))
1796                         return 0;
1797
1798         return 1;
1799 }
1800
1801 static int is_empty_or_comment(char *line)
1802 {
1803         unsigned int i;
1804
1805         for (i = 0; i < strlen(line); i++) {
1806                 if (line[i] == ';')
1807                         return 1;
1808                 if (line[i] == '#')
1809                         return 1;
1810                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1811                         return 0;
1812         }
1813
1814         return 1;
1815 }
1816
1817 /*
1818  * This is our [ini] type file parser.
1819  */
1820 static int __parse_jobs_ini(struct thread_data *td,
1821                 char *file, int is_buf, int stonewall_flag, int type,
1822                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1823 {
1824         bool global = false;
1825         char *string;
1826         FILE *f;
1827         char *p;
1828         int ret = 0, stonewall;
1829         int first_sect = 1;
1830         int skip_fgets = 0;
1831         int inside_skip = 0;
1832         char **opts;
1833         int i, alloc_opts, num_opts;
1834
1835         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1836         assert(td || !nested);
1837
1838         if (is_buf)
1839                 f = NULL;
1840         else {
1841                 if (!strcmp(file, "-"))
1842                         f = stdin;
1843                 else
1844                         f = fopen(file, "r");
1845
1846                 if (!f) {
1847                         int __err = errno;
1848
1849                         log_err("fio: unable to open '%s' job file\n", file);
1850                         if (td)
1851                                 td_verror(td, __err, "job file open");
1852                         return 1;
1853                 }
1854         }
1855
1856         string = malloc(4096);
1857
1858         /*
1859          * it's really 256 + small bit, 280 should suffice
1860          */
1861         if (!nested) {
1862                 name = malloc(280);
1863                 memset(name, 0, 280);
1864         }
1865
1866         opts = NULL;
1867         if (nested && popts) {
1868                 opts = *popts;
1869                 alloc_opts = *aopts;
1870                 num_opts = *nopts;
1871         }
1872
1873         if (!opts) {
1874                 alloc_opts = 8;
1875                 opts = malloc(sizeof(char *) * alloc_opts);
1876                 num_opts = 0;
1877         }
1878
1879         stonewall = stonewall_flag;
1880         do {
1881                 /*
1882                  * if skip_fgets is set, we already have loaded a line we
1883                  * haven't handled.
1884                  */
1885                 if (!skip_fgets) {
1886                         if (is_buf)
1887                                 p = strsep(&file, "\n");
1888                         else
1889                                 p = fgets(string, 4096, f);
1890                         if (!p)
1891                                 break;
1892                 }
1893
1894                 skip_fgets = 0;
1895                 strip_blank_front(&p);
1896                 strip_blank_end(p);
1897
1898                 dprint(FD_PARSE, "%s\n", p);
1899                 if (is_empty_or_comment(p))
1900                         continue;
1901
1902                 if (!nested) {
1903                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1904                                 if (inside_skip)
1905                                         continue;
1906
1907                                 log_err("fio: option <%s> outside of "
1908                                         "[] job section\n", p);
1909                                 ret = 1;
1910                                 break;
1911                         }
1912
1913                         name[strlen(name) - 1] = '\0';
1914
1915                         if (skip_this_section(name)) {
1916                                 inside_skip = 1;
1917                                 continue;
1918                         } else
1919                                 inside_skip = 0;
1920
1921                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1922
1923                         global = !strncmp(name, "global", 6);
1924
1925                         if (dump_cmdline) {
1926                                 if (first_sect)
1927                                         log_info("fio ");
1928                                 if (!global)
1929                                         log_info("--name=%s ", name);
1930                                 first_sect = 0;
1931                         }
1932
1933                         td = get_new_job(global, &def_thread, false, name);
1934                         if (!td) {
1935                                 ret = 1;
1936                                 break;
1937                         }
1938
1939                         /*
1940                          * Separate multiple job files by a stonewall
1941                          */
1942                         if (!global && stonewall) {
1943                                 td->o.stonewall = stonewall;
1944                                 stonewall = 0;
1945                         }
1946
1947                         num_opts = 0;
1948                         memset(opts, 0, alloc_opts * sizeof(char *));
1949                 }
1950                 else
1951                         skip_fgets = 1;
1952
1953                 while (1) {
1954                         if (!skip_fgets) {
1955                                 if (is_buf)
1956                                         p = strsep(&file, "\n");
1957                                 else
1958                                         p = fgets(string, 4096, f);
1959                                 if (!p)
1960                                         break;
1961                                 dprint(FD_PARSE, "%s", p);
1962                         }
1963                         else
1964                                 skip_fgets = 0;
1965
1966                         if (is_empty_or_comment(p))
1967                                 continue;
1968
1969                         strip_blank_front(&p);
1970
1971                         /*
1972                          * new section, break out and make sure we don't
1973                          * fgets() a new line at the top.
1974                          */
1975                         if (p[0] == '[') {
1976                                 if (nested) {
1977                                         log_err("No new sections in included files\n");
1978                                         ret = 1;
1979                                         goto out;
1980                                 }
1981
1982                                 skip_fgets = 1;
1983                                 break;
1984                         }
1985
1986                         strip_blank_end(p);
1987
1988                         if (!strncmp(p, "include", strlen("include"))) {
1989                                 char *filename = p + strlen("include") + 1,
1990                                         *ts, *full_fn = NULL;
1991
1992                                 /*
1993                                  * Allow for the include filename
1994                                  * specification to be relative.
1995                                  */
1996                                 if (access(filename, F_OK) &&
1997                                     (ts = strrchr(file, '/'))) {
1998                                         int len = ts - file +
1999                                                 strlen(filename) + 2;
2000
2001                                         if (!(full_fn = calloc(1, len))) {
2002                                                 ret = ENOMEM;
2003                                                 break;
2004                                         }
2005
2006                                         strncpy(full_fn,
2007                                                 file, (ts - file) + 1);
2008                                         strncpy(full_fn + (ts - file) + 1,
2009                                                 filename, strlen(filename));
2010                                         full_fn[len - 1] = 0;
2011                                         filename = full_fn;
2012                                 }
2013
2014                                 ret = __parse_jobs_ini(td, filename, is_buf,
2015                                                        stonewall_flag, type, 1,
2016                                                        name, &opts,
2017                                                        &alloc_opts, &num_opts);
2018
2019                                 if (ret) {
2020                                         log_err("Error %d while parsing "
2021                                                 "include file %s\n",
2022                                                 ret, filename);
2023                                 }
2024
2025                                 if (full_fn)
2026                                         free(full_fn);
2027
2028                                 if (ret)
2029                                         break;
2030
2031                                 continue;
2032                         }
2033
2034                         if (num_opts == alloc_opts) {
2035                                 alloc_opts <<= 1;
2036                                 opts = realloc(opts,
2037                                                 alloc_opts * sizeof(char *));
2038                         }
2039
2040                         opts[num_opts] = strdup(p);
2041                         num_opts++;
2042                 }
2043
2044                 if (nested) {
2045                         *popts = opts;
2046                         *aopts = alloc_opts;
2047                         *nopts = num_opts;
2048                         goto out;
2049                 }
2050
2051                 ret = fio_options_parse(td, opts, num_opts);
2052                 if (!ret) {
2053                         if (dump_cmdline)
2054                                 dump_opt_list(td);
2055
2056                         ret = add_job(td, name, 0, 0, type);
2057                 } else {
2058                         log_err("fio: job %s dropped\n", name);
2059                         put_job(td);
2060                 }
2061
2062                 for (i = 0; i < num_opts; i++)
2063                         free(opts[i]);
2064                 num_opts = 0;
2065         } while (!ret);
2066
2067         if (dump_cmdline)
2068                 log_info("\n");
2069
2070         i = 0;
2071         while (i < nr_job_sections) {
2072                 free(job_sections[i]);
2073                 i++;
2074         }
2075
2076         free(opts);
2077 out:
2078         free(string);
2079         if (!nested)
2080                 free(name);
2081         if (!is_buf && f != stdin)
2082                 fclose(f);
2083         return ret;
2084 }
2085
2086 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2087 {
2088         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2089                         0, NULL, NULL, NULL, NULL);
2090 }
2091
2092 static int fill_def_thread(void)
2093 {
2094         memset(&def_thread, 0, sizeof(def_thread));
2095         INIT_FLIST_HEAD(&def_thread.opt_list);
2096
2097         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2098         def_thread.o.error_dump = 1;
2099
2100         /*
2101          * fill default options
2102          */
2103         fio_fill_default_options(&def_thread);
2104         return 0;
2105 }
2106
2107 static void show_debug_categories(void)
2108 {
2109 #ifdef FIO_INC_DEBUG
2110         const struct debug_level *dl = &debug_levels[0];
2111         int curlen, first = 1;
2112
2113         curlen = 0;
2114         while (dl->name) {
2115                 int has_next = (dl + 1)->name != NULL;
2116
2117                 if (first || curlen + strlen(dl->name) >= 80) {
2118                         if (!first) {
2119                                 printf("\n");
2120                                 curlen = 0;
2121                         }
2122                         curlen += printf("\t\t\t%s", dl->name);
2123                         curlen += 3 * (8 - 1);
2124                         if (has_next)
2125                                 curlen += printf(",");
2126                 } else {
2127                         curlen += printf("%s", dl->name);
2128                         if (has_next)
2129                                 curlen += printf(",");
2130                 }
2131                 dl++;
2132                 first = 0;
2133         }
2134         printf("\n");
2135 #endif
2136 }
2137
2138 /*
2139  * Following options aren't printed by usage().
2140  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2141  * --latency-log - Deprecated option.
2142  */
2143 static void usage(const char *name)
2144 {
2145         printf("%s\n", fio_version_string);
2146         printf("%s [options] [job options] <job file(s)>\n", name);
2147         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2148         show_debug_categories();
2149         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2150         printf("  --output\t\tWrite output to file\n");
2151         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2152         printf("  --minimal\t\tMinimal (terse) output\n");
2153         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2154         printf("  --terse-version=type\tSet terse version output format"
2155                 " (default 3, or 2 or 4)\n");
2156         printf("  --version\t\tPrint version info and exit\n");
2157         printf("  --help\t\tPrint this page\n");
2158         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2159         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2160         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2161                 " them\n");
2162         printf("  --enghelp=engine\tPrint ioengine help, or list"
2163                 " available ioengines\n");
2164         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2165                 " cmd\n");
2166         printf("  --showcmd\t\tTurn a job file into command line options\n");
2167         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2168         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2169         printf("  --eta-newline=time\tForce a new line for every 'time'");
2170         printf(" period passed\n");
2171         printf("  --status-interval=t\tForce full status dump every");
2172         printf(" 't' period passed\n");
2173         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2174                 " writes\n");
2175         printf("  --section=name\tOnly run specified section in job file,"
2176                 " multiple sections can be specified\n");
2177         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2178                 " (def 16384)\n");
2179         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2180         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2181         printf("  --server=args\t\tStart a backend fio server\n");
2182         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2183         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2184         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2185         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2186                 "\t\t\t(option=system,percpu) or run unit work\n"
2187                 "\t\t\tcalibration only (option=calibrate)\n");
2188 #ifdef CONFIG_ZLIB
2189         printf("  --inflate-log=log\tInflate and output compressed log\n");
2190 #endif
2191         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2192         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2193         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2194         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2195         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2196         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2197 }
2198
2199 #ifdef FIO_INC_DEBUG
2200 const struct debug_level debug_levels[] = {
2201         { .name = "process",
2202           .help = "Process creation/exit logging",
2203           .shift = FD_PROCESS,
2204         },
2205         { .name = "file",
2206           .help = "File related action logging",
2207           .shift = FD_FILE,
2208         },
2209         { .name = "io",
2210           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2211           .shift = FD_IO,
2212         },
2213         { .name = "mem",
2214           .help = "Memory allocation/freeing logging",
2215           .shift = FD_MEM,
2216         },
2217         { .name = "blktrace",
2218           .help = "blktrace action logging",
2219           .shift = FD_BLKTRACE,
2220         },
2221         { .name = "verify",
2222           .help = "IO verification action logging",
2223           .shift = FD_VERIFY,
2224         },
2225         { .name = "random",
2226           .help = "Random generation logging",
2227           .shift = FD_RANDOM,
2228         },
2229         { .name = "parse",
2230           .help = "Parser logging",
2231           .shift = FD_PARSE,
2232         },
2233         { .name = "diskutil",
2234           .help = "Disk utility logging actions",
2235           .shift = FD_DISKUTIL,
2236         },
2237         { .name = "job",
2238           .help = "Logging related to creating/destroying jobs",
2239           .shift = FD_JOB,
2240         },
2241         { .name = "mutex",
2242           .help = "Mutex logging",
2243           .shift = FD_MUTEX
2244         },
2245         { .name = "profile",
2246           .help = "Logging related to profiles",
2247           .shift = FD_PROFILE,
2248         },
2249         { .name = "time",
2250           .help = "Logging related to time keeping functions",
2251           .shift = FD_TIME,
2252         },
2253         { .name = "net",
2254           .help = "Network logging",
2255           .shift = FD_NET,
2256         },
2257         { .name = "rate",
2258           .help = "Rate logging",
2259           .shift = FD_RATE,
2260         },
2261         { .name = "compress",
2262           .help = "Log compression logging",
2263           .shift = FD_COMPRESS,
2264         },
2265         { .name = "steadystate",
2266           .help = "Steady state detection logging",
2267           .shift = FD_STEADYSTATE,
2268         },
2269         { .name = "helperthread",
2270           .help = "Helper thread logging",
2271           .shift = FD_HELPERTHREAD,
2272         },
2273         { .name = NULL, },
2274 };
2275
2276 static int set_debug(const char *string)
2277 {
2278         const struct debug_level *dl;
2279         char *p = (char *) string;
2280         char *opt;
2281         int i;
2282
2283         if (!string)
2284                 return 0;
2285
2286         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2287                 log_info("fio: dumping debug options:");
2288                 for (i = 0; debug_levels[i].name; i++) {
2289                         dl = &debug_levels[i];
2290                         log_info("%s,", dl->name);
2291                 }
2292                 log_info("all\n");
2293                 return 1;
2294         }
2295
2296         while ((opt = strsep(&p, ",")) != NULL) {
2297                 int found = 0;
2298
2299                 if (!strncmp(opt, "all", 3)) {
2300                         log_info("fio: set all debug options\n");
2301                         fio_debug = ~0UL;
2302                         continue;
2303                 }
2304
2305                 for (i = 0; debug_levels[i].name; i++) {
2306                         dl = &debug_levels[i];
2307                         found = !strncmp(opt, dl->name, strlen(dl->name));
2308                         if (!found)
2309                                 continue;
2310
2311                         if (dl->shift == FD_JOB) {
2312                                 opt = strchr(opt, ':');
2313                                 if (!opt) {
2314                                         log_err("fio: missing job number\n");
2315                                         break;
2316                                 }
2317                                 opt++;
2318                                 fio_debug_jobno = atoi(opt);
2319                                 log_info("fio: set debug jobno %d\n",
2320                                                         fio_debug_jobno);
2321                         } else {
2322                                 log_info("fio: set debug option %s\n", opt);
2323                                 fio_debug |= (1UL << dl->shift);
2324                         }
2325                         break;
2326                 }
2327
2328                 if (!found)
2329                         log_err("fio: debug mask %s not found\n", opt);
2330         }
2331         return 0;
2332 }
2333 #else
2334 static int set_debug(const char *string)
2335 {
2336         log_err("fio: debug tracing not included in build\n");
2337         return 1;
2338 }
2339 #endif
2340
2341 static void fio_options_fill_optstring(void)
2342 {
2343         char *ostr = cmd_optstr;
2344         int i, c;
2345
2346         c = i = 0;
2347         while (l_opts[i].name) {
2348                 ostr[c++] = l_opts[i].val;
2349                 if (l_opts[i].has_arg == required_argument)
2350                         ostr[c++] = ':';
2351                 else if (l_opts[i].has_arg == optional_argument) {
2352                         ostr[c++] = ':';
2353                         ostr[c++] = ':';
2354                 }
2355                 i++;
2356         }
2357         ostr[c] = '\0';
2358 }
2359
2360 static int client_flag_set(char c)
2361 {
2362         int i;
2363
2364         i = 0;
2365         while (l_opts[i].name) {
2366                 int val = l_opts[i].val;
2367
2368                 if (c == (val & 0xff))
2369                         return (val & FIO_CLIENT_FLAG);
2370
2371                 i++;
2372         }
2373
2374         return 0;
2375 }
2376
2377 static void parse_cmd_client(void *client, char *opt)
2378 {
2379         fio_client_add_cmd_option(client, opt);
2380 }
2381
2382 static void show_closest_option(const char *name)
2383 {
2384         int best_option, best_distance;
2385         int i, distance;
2386
2387         while (*name == '-')
2388                 name++;
2389
2390         best_option = -1;
2391         best_distance = INT_MAX;
2392         i = 0;
2393         while (l_opts[i].name) {
2394                 distance = string_distance(name, l_opts[i].name);
2395                 if (distance < best_distance) {
2396                         best_distance = distance;
2397                         best_option = i;
2398                 }
2399                 i++;
2400         }
2401
2402         if (best_option != -1 && string_distance_ok(name, best_distance))
2403                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2404 }
2405
2406 static int parse_output_format(const char *optarg)
2407 {
2408         char *p, *orig, *opt;
2409         int ret = 0;
2410
2411         p = orig = strdup(optarg);
2412
2413         output_format = 0;
2414
2415         while ((opt = strsep(&p, ",")) != NULL) {
2416                 if (!strcmp(opt, "minimal") ||
2417                     !strcmp(opt, "terse") ||
2418                     !strcmp(opt, "csv"))
2419                         output_format |= FIO_OUTPUT_TERSE;
2420                 else if (!strcmp(opt, "json"))
2421                         output_format |= FIO_OUTPUT_JSON;
2422                 else if (!strcmp(opt, "json+"))
2423                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2424                 else if (!strcmp(opt, "normal"))
2425                         output_format |= FIO_OUTPUT_NORMAL;
2426                 else {
2427                         log_err("fio: invalid output format %s\n", opt);
2428                         ret = 1;
2429                         break;
2430                 }
2431         }
2432
2433         free(orig);
2434         return ret;
2435 }
2436
2437 int parse_cmd_line(int argc, char *argv[], int client_type)
2438 {
2439         struct thread_data *td = NULL;
2440         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2441         char *ostr = cmd_optstr;
2442         char *pid_file = NULL;
2443         void *cur_client = NULL;
2444         int backend = 0;
2445
2446         /*
2447          * Reset optind handling, since we may call this multiple times
2448          * for the backend.
2449          */
2450         optind = 1;
2451
2452         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2453                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2454                         parse_cmd_client(cur_client, argv[optind - 1]);
2455                         c &= ~FIO_CLIENT_FLAG;
2456                 }
2457
2458                 switch (c) {
2459                 case 'a':
2460                         smalloc_pool_size = atoi(optarg);
2461                         smalloc_pool_size <<= 10;
2462                         sinit();
2463                         break;
2464                 case 'l':
2465                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2466                         do_exit++;
2467                         exit_val = 1;
2468                         break;
2469                 case 'b':
2470                         write_bw_log = 1;
2471                         break;
2472                 case 'o': {
2473                         FILE *tmp;
2474
2475                         if (f_out && f_out != stdout)
2476                                 fclose(f_out);
2477
2478                         tmp = fopen(optarg, "w+");
2479                         if (!tmp) {
2480                                 log_err("fio: output file open error: %s\n", strerror(errno));
2481                                 exit_val = 1;
2482                                 do_exit++;
2483                                 break;
2484                         }
2485                         f_err = f_out = tmp;
2486                         break;
2487                         }
2488                 case 'm':
2489                         output_format = FIO_OUTPUT_TERSE;
2490                         break;
2491                 case 'F':
2492                         if (parse_output_format(optarg)) {
2493                                 log_err("fio: failed parsing output-format\n");
2494                                 exit_val = 1;
2495                                 do_exit++;
2496                                 break;
2497                         }
2498                         break;
2499                 case 'f':
2500                         output_format |= FIO_OUTPUT_TERSE;
2501                         break;
2502                 case 'h':
2503                         did_arg = true;
2504                         if (!cur_client) {
2505                                 usage(argv[0]);
2506                                 do_exit++;
2507                         }
2508                         break;
2509                 case 'c':
2510                         did_arg = true;
2511                         if (!cur_client) {
2512                                 fio_show_option_help(optarg);
2513                                 do_exit++;
2514                         }
2515                         break;
2516                 case 'i':
2517                         did_arg = true;
2518                         if (!cur_client) {
2519                                 fio_show_ioengine_help(optarg);
2520                                 do_exit++;
2521                         }
2522                         break;
2523                 case 's':
2524                         did_arg = true;
2525                         dump_cmdline = 1;
2526                         break;
2527                 case 'r':
2528                         read_only = 1;
2529                         break;
2530                 case 'v':
2531                         did_arg = true;
2532                         if (!cur_client) {
2533                                 log_info("%s\n", fio_version_string);
2534                                 do_exit++;
2535                         }
2536                         break;
2537                 case 'V':
2538                         terse_version = atoi(optarg);
2539                         if (!(terse_version >= 2 && terse_version <= 5)) {
2540                                 log_err("fio: bad terse version format\n");
2541                                 exit_val = 1;
2542                                 do_exit++;
2543                         }
2544                         break;
2545                 case 'e':
2546                         if (!strcmp("always", optarg))
2547                                 eta_print = FIO_ETA_ALWAYS;
2548                         else if (!strcmp("never", optarg))
2549                                 eta_print = FIO_ETA_NEVER;
2550                         break;
2551                 case 'E': {
2552                         long long t = 0;
2553
2554                         if (check_str_time(optarg, &t, 1)) {
2555                                 log_err("fio: failed parsing eta time %s\n", optarg);
2556                                 exit_val = 1;
2557                                 do_exit++;
2558                                 break;
2559                         }
2560                         eta_new_line = t / 1000;
2561                         if (!eta_new_line) {
2562                                 log_err("fio: eta new line time too short\n");
2563                                 exit_val = 1;
2564                                 do_exit++;
2565                         }
2566                         break;
2567                         }
2568                 case 'O': {
2569                         long long t = 0;
2570
2571                         if (check_str_time(optarg, &t, 1)) {
2572                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2573                                 exit_val = 1;
2574                                 do_exit++;
2575                                 break;
2576                         }
2577                         eta_interval_msec = t / 1000;
2578                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2579                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2580                                 exit_val = 1;
2581                                 do_exit++;
2582                         }
2583                         break;
2584                         }
2585                 case 'd':
2586                         if (set_debug(optarg))
2587                                 do_exit++;
2588                         break;
2589                 case 'P':
2590                         did_arg = true;
2591                         parse_only = 1;
2592                         break;
2593                 case 'x': {
2594                         size_t new_size;
2595
2596                         if (!strcmp(optarg, "global")) {
2597                                 log_err("fio: can't use global as only "
2598                                         "section\n");
2599                                 do_exit++;
2600                                 exit_val = 1;
2601                                 break;
2602                         }
2603                         new_size = (nr_job_sections + 1) * sizeof(char *);
2604                         job_sections = realloc(job_sections, new_size);
2605                         job_sections[nr_job_sections] = strdup(optarg);
2606                         nr_job_sections++;
2607                         break;
2608                         }
2609 #ifdef CONFIG_ZLIB
2610                 case 'X':
2611                         exit_val = iolog_file_inflate(optarg);
2612                         did_arg = true;
2613                         do_exit++;
2614                         break;
2615 #endif
2616                 case 'p':
2617                         did_arg = true;
2618                         if (exec_profile)
2619                                 free(exec_profile);
2620                         exec_profile = strdup(optarg);
2621                         break;
2622                 case FIO_GETOPT_JOB: {
2623                         const char *opt = l_opts[lidx].name;
2624                         char *val = optarg;
2625
2626                         if (!strncmp(opt, "name", 4) && td) {
2627                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2628                                 if (ret)
2629                                         goto out_free;
2630                                 td = NULL;
2631                                 did_arg = true;
2632                         }
2633                         if (!td) {
2634                                 int is_section = !strncmp(opt, "name", 4);
2635                                 int global = 0;
2636
2637                                 if (!is_section || !strncmp(val, "global", 6))
2638                                         global = 1;
2639
2640                                 if (is_section && skip_this_section(val))
2641                                         continue;
2642
2643                                 td = get_new_job(global, &def_thread, true, NULL);
2644                                 if (!td || ioengine_load(td)) {
2645                                         if (td) {
2646                                                 put_job(td);
2647                                                 td = NULL;
2648                                         }
2649                                         do_exit++;
2650                                         exit_val = 1;
2651                                         break;
2652                                 }
2653                                 fio_options_set_ioengine_opts(l_opts, td);
2654                         }
2655
2656                         if ((!val || !strlen(val)) &&
2657                             l_opts[lidx].has_arg == required_argument) {
2658                                 log_err("fio: option %s requires an argument\n", opt);
2659                                 ret = 1;
2660                         } else
2661                                 ret = fio_cmd_option_parse(td, opt, val);
2662
2663                         if (ret) {
2664                                 if (td) {
2665                                         put_job(td);
2666                                         td = NULL;
2667                                 }
2668                                 do_exit++;
2669                                 exit_val = 1;
2670                         }
2671
2672                         if (!ret && !strcmp(opt, "ioengine")) {
2673                                 if (ioengine_load(td)) {
2674                                         put_job(td);
2675                                         td = NULL;
2676                                         do_exit++;
2677                                         exit_val = 1;
2678                                         break;
2679                                 }
2680                                 fio_options_set_ioengine_opts(l_opts, td);
2681                         }
2682                         break;
2683                 }
2684                 case FIO_GETOPT_IOENGINE: {
2685                         const char *opt = l_opts[lidx].name;
2686                         char *val = optarg;
2687
2688                         if (!td)
2689                                 break;
2690
2691                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2692                         break;
2693                 }
2694                 case 'w':
2695                         warnings_fatal = 1;
2696                         break;
2697                 case 'j':
2698                         max_jobs = atoi(optarg);
2699                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2700                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2701                                 do_exit++;
2702                                 exit_val = 1;
2703                         }
2704                         break;
2705                 case 'S':
2706                         did_arg = true;
2707 #ifndef CONFIG_NO_SHM
2708                         if (nr_clients) {
2709                                 log_err("fio: can't be both client and server\n");
2710                                 do_exit++;
2711                                 exit_val = 1;
2712                                 break;
2713                         }
2714                         if (optarg)
2715                                 fio_server_set_arg(optarg);
2716                         is_backend = 1;
2717                         backend = 1;
2718 #else
2719                         log_err("fio: client/server requires SHM support\n");
2720                         do_exit++;
2721                         exit_val = 1;
2722 #endif
2723                         break;
2724                 case 'D':
2725                         if (pid_file)
2726                                 free(pid_file);
2727                         pid_file = strdup(optarg);
2728                         break;
2729                 case 'I':
2730                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2731                                 /* exit on error and calibration only */
2732                                 did_arg = true;
2733                                 do_exit++;
2734                                 if (ret == -1)
2735                                         exit_val = 1;
2736                         }
2737                         break;
2738                 case 'C':
2739                         did_arg = true;
2740                         if (is_backend) {
2741                                 log_err("fio: can't be both client and server\n");
2742                                 do_exit++;
2743                                 exit_val = 1;
2744                                 break;
2745                         }
2746                         /* if --client parameter contains a pathname */
2747                         if (0 == access(optarg, R_OK)) {
2748                                 /* file contains a list of host addrs or names */
2749                                 char hostaddr[PATH_MAX] = {0};
2750                                 char formatstr[8];
2751                                 FILE * hostf = fopen(optarg, "r");
2752                                 if (!hostf) {
2753                                         log_err("fio: could not open client list file %s for read\n", optarg);
2754                                         do_exit++;
2755                                         exit_val = 1;
2756                                         break;
2757                                 }
2758                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2759                                 /*
2760                                  * read at most PATH_MAX-1 chars from each
2761                                  * record in this file
2762                                  */
2763                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2764                                         /* expect EVERY host in file to be valid */
2765                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2766                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2767                                                 do_exit++;
2768                                                 exit_val = 1;
2769                                                 break;
2770                                         }
2771                                 }
2772                                 fclose(hostf);
2773                                 break; /* no possibility of job file for "this client only" */
2774                         }
2775                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2776                                 log_err("fio: failed adding client %s\n", optarg);
2777                                 do_exit++;
2778                                 exit_val = 1;
2779                                 break;
2780                         }
2781                         /*
2782                          * If the next argument exists and isn't an option,
2783                          * assume it's a job file for this client only.
2784                          */
2785                         while (optind < argc) {
2786                                 if (!strncmp(argv[optind], "--", 2) ||
2787                                     !strncmp(argv[optind], "-", 1))
2788                                         break;
2789
2790                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2791                                         break;
2792                                 optind++;
2793                         }
2794                         break;
2795                 case 'R':
2796                         did_arg = true;
2797                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2798                                 do_exit++;
2799                                 exit_val = 1;
2800                         }
2801                         break;
2802                 case 'T':
2803                         did_arg = true;
2804                         do_exit++;
2805                         exit_val = fio_monotonic_clocktest(1);
2806                         break;
2807                 case 'G':
2808                         did_arg = true;
2809                         do_exit++;
2810                         exit_val = fio_crctest(optarg);
2811                         break;
2812                 case 'M':
2813                         did_arg = true;
2814                         do_exit++;
2815                         exit_val = fio_memcpy_test(optarg);
2816                         break;
2817                 case 'L': {
2818                         long long val;
2819
2820                         if (check_str_time(optarg, &val, 1)) {
2821                                 log_err("fio: failed parsing time %s\n", optarg);
2822                                 do_exit++;
2823                                 exit_val = 1;
2824                                 break;
2825                         }
2826                         if (val < 1000) {
2827                                 log_err("fio: status interval too small\n");
2828                                 do_exit++;
2829                                 exit_val = 1;
2830                         }
2831                         status_interval = val / 1000;
2832                         break;
2833                         }
2834                 case 'W':
2835                         if (trigger_file)
2836                                 free(trigger_file);
2837                         trigger_file = strdup(optarg);
2838                         break;
2839                 case 'H':
2840                         if (trigger_cmd)
2841                                 free(trigger_cmd);
2842                         trigger_cmd = strdup(optarg);
2843                         break;
2844                 case 'J':
2845                         if (trigger_remote_cmd)
2846                                 free(trigger_remote_cmd);
2847                         trigger_remote_cmd = strdup(optarg);
2848                         break;
2849                 case 'K':
2850                         if (aux_path)
2851                                 free(aux_path);
2852                         aux_path = strdup(optarg);
2853                         break;
2854                 case 'B':
2855                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2856                                 log_err("fio: failed parsing time %s\n", optarg);
2857                                 do_exit++;
2858                                 exit_val = 1;
2859                         }
2860                         trigger_timeout /= 1000000;
2861                         break;
2862                 case '?':
2863                         log_err("%s: unrecognized option '%s'\n", argv[0],
2864                                                         argv[optind - 1]);
2865                         show_closest_option(argv[optind - 1]);
2866                 default:
2867                         do_exit++;
2868                         exit_val = 1;
2869                         break;
2870                 }
2871                 if (do_exit)
2872                         break;
2873         }
2874
2875         if (do_exit && !(is_backend || nr_clients))
2876                 exit(exit_val);
2877
2878         if (nr_clients && fio_clients_connect())
2879                 exit(1);
2880
2881         if (is_backend && backend)
2882                 return fio_start_server(pid_file);
2883         else if (pid_file)
2884                 free(pid_file);
2885
2886         if (td) {
2887                 if (!ret) {
2888                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2889                         if (ret)
2890                                 exit(1);
2891                 }
2892         }
2893
2894         while (!ret && optind < argc) {
2895                 ini_idx++;
2896                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2897                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2898                 optind++;
2899         }
2900
2901 out_free:
2902         return ini_idx;
2903 }
2904
2905 int fio_init_options(void)
2906 {
2907         f_out = stdout;
2908         f_err = stderr;
2909
2910         fio_options_fill_optstring();
2911         fio_options_dup_and_init(l_opts);
2912
2913         atexit(free_shm);
2914
2915         if (fill_def_thread())
2916                 return 1;
2917
2918         return 0;
2919 }
2920
2921 extern int fio_check_options(struct thread_options *);
2922
2923 int parse_options(int argc, char *argv[])
2924 {
2925         const int type = FIO_CLIENT_TYPE_CLI;
2926         int job_files, i;
2927
2928         if (fio_init_options())
2929                 return 1;
2930         if (fio_test_cconv(&def_thread.o))
2931                 log_err("fio: failed internal cconv test\n");
2932
2933         job_files = parse_cmd_line(argc, argv, type);
2934
2935         if (job_files > 0) {
2936                 for (i = 0; i < job_files; i++) {
2937                         if (i && fill_def_thread())
2938                                 return 1;
2939                         if (nr_clients) {
2940                                 if (fio_clients_send_ini(ini_file[i]))
2941                                         return 1;
2942                                 free(ini_file[i]);
2943                         } else if (!is_backend) {
2944                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2945                                         return 1;
2946                                 free(ini_file[i]);
2947                         }
2948                 }
2949         } else if (nr_clients) {
2950                 if (fill_def_thread())
2951                         return 1;
2952                 if (fio_clients_send_ini(NULL))
2953                         return 1;
2954         }
2955
2956         free(ini_file);
2957         fio_options_free(&def_thread);
2958         filesetup_mem_free();
2959
2960         if (!thread_number) {
2961                 if (parse_dryrun())
2962                         return 0;
2963                 if (exec_profile)
2964                         return 0;
2965                 if (is_backend || nr_clients)
2966                         return 0;
2967                 if (did_arg)
2968                         return 0;
2969
2970                 log_err("No job(s) defined\n\n");
2971                 usage(argv[0]);
2972                 return 1;
2973         }
2974
2975         if (output_format & FIO_OUTPUT_NORMAL)
2976                 log_info("%s\n", fio_version_string);
2977
2978         return 0;
2979 }
2980
2981 void options_default_fill(struct thread_options *o)
2982 {
2983         memcpy(o, &def_thread.o, sizeof(*o));
2984 }
2985
2986 struct thread_data *get_global_options(void)
2987 {
2988         return &def_thread;
2989 }