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[PATCH] Version 1.8
[fio.git] / init.c
CommitLineData
906c8d75 1/*
cb2c86fd 2 * This file contains job initialization and setup functions.
906c8d75 3 */
ebac4655
JA		 4#include <stdio.h>
5#include <stdlib.h>
6#include <unistd.h>
7#include <fcntl.h>
8#include <ctype.h>
9#include <string.h>
10#include <errno.h>
b4692828
JA		 11#include <getopt.h>
12#include <assert.h>
ebac4655
JA		 13#include <sys/ipc.h>
14#include <sys/shm.h>
15#include <sys/types.h>
16#include <sys/stat.h>
17
18#include "fio.h"
cb2c86fd 19#include "parse.h"
ebac4655 20
906c8d75
JA		 21/*
22 * The default options
23 */
20dc95c4
JA		 24#define DEF_BS (4096)
25#define DEF_TIMEOUT (0)
26#define DEF_RATE_CYCLE (1000)
27#define DEF_ODIRECT (1)
28#define DEF_IO_ENGINE (FIO_SYNCIO)
ebac4655 29#define DEF_IO_ENGINE_NAME "sync"
20dc95c4
JA		 30#define DEF_SEQUENTIAL (1)
31#define DEF_RAND_REPEAT (1)
32#define DEF_OVERWRITE (1)
20dc95c4
JA		 33#define DEF_INVALIDATE (1)
34#define DEF_SYNCIO (0)
35#define DEF_RANDSEED (0xb1899bedUL)
36#define DEF_BWAVGTIME (500)
37#define DEF_CREATE_SER (1)
ebac4655 38#define DEF_CREATE_FSYNC (1)
20dc95c4
JA		 39#define DEF_LOOPS (1)
40#define DEF_VERIFY (0)
41#define DEF_STONEWALL (0)
42#define DEF_NUMJOBS (1)
43#define DEF_USE_THREAD (0)
44#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
45#define DEF_ZONE_SIZE (0)
46#define DEF_ZONE_SKIP (0)
a6ccc7be
JA		 47#define DEF_RWMIX_CYCLE (500)
48#define DEF_RWMIX_READ (50)
b6f4d880 49#define DEF_NICE (0)
53cdc686 50#define DEF_NR_FILES (1)
f6cbb269 51#define DEF_UNLINK (0)
ec94ec56
JA		 52#define DEF_WRITE_BW_LOG (0)
53#define DEF_WRITE_LAT_LOG (0)
bb8895e0 54#define DEF_NO_RAND_MAP (0)
ebac4655 55
e1f36503
JA		 56#define td_var_offset(var) ((size_t) &((struct thread_data *)0)->var)
57
b4692828
JA		 58static int str_rw_cb(void *, const char *);
59static int str_ioengine_cb(void *, const char *);
60static int str_mem_cb(void *, const char *);
61static int str_verify_cb(void *, const char *);
e1f36503 62static int str_lockmem_cb(void *, unsigned long *);
34cfcdaf 63#ifdef FIO_HAVE_IOPRIO
e1f36503
JA		 64static int str_prio_cb(void *, unsigned int *);
65static int str_prioclass_cb(void *, unsigned int *);
34cfcdaf 66#endif
e1f36503
JA		 67static int str_exitall_cb(void);
68static int str_cpumask_cb(void *, unsigned int *);
69
70/*
71 * Map of job/command line options
72 */
73static struct fio_option options[] = {
74 {
75 .name = "name",
76 .type = FIO_OPT_STR_STORE,
77 .off1 = td_var_offset(name),
78 },
79 {
80 .name = "directory",
81 .type = FIO_OPT_STR_STORE,
82 .off1 = td_var_offset(directory),
83 },
84 {
85 .name = "filename",
86 .type = FIO_OPT_STR_STORE,
87 .off1 = td_var_offset(filename),
88 },
89 {
90 .name = "rw",
91 .type = FIO_OPT_STR,
92 .cb = str_rw_cb,
93 },
94 {
95 .name = "ioengine",
96 .type = FIO_OPT_STR,
97 .cb = str_ioengine_cb,
98 },
99 {
100 .name = "mem",
101 .type = FIO_OPT_STR,
102 .cb = str_mem_cb,
103 },
104 {
105 .name = "verify",
106 .type = FIO_OPT_STR,
107 .cb = str_verify_cb,
108 },
109 {
110 .name = "write_iolog",
076efc7c
JA		 111 .type = FIO_OPT_STR_STORE,
112 .off1 = td_var_offset(write_iolog_file),
e1f36503
JA		 113 },
114 {
076efc7c 115 .name = "read_iolog",
e1f36503 116 .type = FIO_OPT_STR_STORE,
076efc7c 117 .off1 = td_var_offset(read_iolog_file),
e1f36503
JA		 118 },
119 {
120 .name = "exec_prerun",
121 .type = FIO_OPT_STR_STORE,
122 .off1 = td_var_offset(exec_prerun),
123 },
124 {
125 .name = "exec_postrun",
126 .type = FIO_OPT_STR_STORE,
127 .off1 = td_var_offset(exec_postrun),
128 },
129#ifdef FIO_HAVE_IOSCHED_SWITCH
130 {
131 .name = "ioscheduler",
132 .type = FIO_OPT_STR_STORE,
133 .off1 = td_var_offset(ioscheduler),
134 },
135#endif
136 {
137 .name = "size",
138 .type = FIO_OPT_STR_VAL,
139 .off1 = td_var_offset(total_file_size),
140 },
141 {
142 .name = "bs",
75e6f36f 143 .type = FIO_OPT_STR_VAL_INT,
a00735e6 144 .off1 = td_var_offset(bs[DDIR_READ]),
f90eff5a 145 .off2 = td_var_offset(bs[DDIR_WRITE]),
e1f36503
JA		 146 },
147 {
148 .name = "offset",
149 .type = FIO_OPT_STR_VAL,
150 .off1 = td_var_offset(start_offset),
151 },
152 {
153 .name = "zonesize",
154 .type = FIO_OPT_STR_VAL,
155 .off1 = td_var_offset(zone_size),
156 },
157 {
158 .name = "zoneskip",
159 .type = FIO_OPT_STR_VAL,
160 .off1 = td_var_offset(zone_skip),
161 },
162 {
163 .name = "lockmem",
164 .type = FIO_OPT_STR_VAL,
165 .cb = str_lockmem_cb,
166 },
167 {
168 .name = "bsrange",
169 .type = FIO_OPT_RANGE,
a00735e6
JA		 170 .off1 = td_var_offset(min_bs[DDIR_READ]),
171 .off2 = td_var_offset(max_bs[DDIR_READ]),
f90eff5a
JA		 172 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
173 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
e1f36503
JA		 174 },
175 {
176 .name = "nrfiles",
177 .type = FIO_OPT_INT,
178 .off1 = td_var_offset(nr_files),
179 },
180 {
181 .name = "iodepth",
182 .type = FIO_OPT_INT,
183 .off1 = td_var_offset(iodepth),
184 },
185 {
186 .name = "fsync",
187 .type = FIO_OPT_INT,
188 .off1 = td_var_offset(fsync_blocks),
189 },
190 {
191 .name = "rwmixcycle",
192 .type = FIO_OPT_INT,
193 .off1 = td_var_offset(rwmixcycle),
194 },
195 {
196 .name = "rwmixread",
197 .type = FIO_OPT_INT,
198 .off1 = td_var_offset(rwmixread),
199 .max_val= 100,
200 },
201 {
202 .name = "rwmixwrite",
203 .type = FIO_OPT_INT,
204 .off1 = td_var_offset(rwmixwrite),
205 .max_val= 100,
206 },
207 {
208 .name = "nice",
209 .type = FIO_OPT_INT,
210 .off1 = td_var_offset(nice),
211 },
212#ifdef FIO_HAVE_IOPRIO
213 {
214 .name = "prio",
215 .type = FIO_OPT_INT,
216 .cb = str_prio_cb,
217 },
218 {
219 .name = "prioclass",
220 .type = FIO_OPT_INT,
221 .cb = str_prioclass_cb,
222 },
223#endif
224 {
225 .name = "thinktime",
226 .type = FIO_OPT_INT,
227 .off1 = td_var_offset(thinktime)
228 },
229 {
230 .name = "rate",
231 .type = FIO_OPT_INT,
232 .off1 = td_var_offset(rate)
233 },
234 {
235 .name = "ratemin",
236 .type = FIO_OPT_INT,
237 .off1 = td_var_offset(ratemin)
238 },
239 {
240 .name = "ratecycle",
241 .type = FIO_OPT_INT,
242 .off1 = td_var_offset(ratecycle)
243 },
244 {
245 .name = "startdelay",
246 .type = FIO_OPT_INT,
247 .off1 = td_var_offset(start_delay)
248 },
249 {
250 .name = "timeout",
251 .type = FIO_OPT_STR_VAL_TIME,
252 .off1 = td_var_offset(timeout)
253 },
254 {
255 .name = "invalidate",
256 .type = FIO_OPT_INT,
257 .off1 = td_var_offset(invalidate_cache)
258 },
259 {
260 .name = "sync",
261 .type = FIO_OPT_INT,
262 .off1 = td_var_offset(sync_io)
263 },
264 {
265 .name = "bwavgtime",
266 .type = FIO_OPT_INT,
267 .off1 = td_var_offset(bw_avg_time)
268 },
269 {
270 .name = "create_serialize",
271 .type = FIO_OPT_INT,
272 .off1 = td_var_offset(create_serialize)
273 },
274 {
275 .name = "create_fsync",
276 .type = FIO_OPT_INT,
277 .off1 = td_var_offset(create_fsync)
278 },
279 {
280 .name = "loops",
281 .type = FIO_OPT_INT,
282 .off1 = td_var_offset(loops)
283 },
284 {
285 .name = "numjobs",
286 .type = FIO_OPT_INT,
287 .off1 = td_var_offset(numjobs)
288 },
289 {
290 .name = "cpuload",
291 .type = FIO_OPT_INT,
292 .off1 = td_var_offset(cpuload)
293 },
294 {
295 .name = "cpuchunks",
296 .type = FIO_OPT_INT,
297 .off1 = td_var_offset(cpucycle)
298 },
299 {
300 .name = "direct",
301 .type = FIO_OPT_INT,
302 .off1 = td_var_offset(odirect)
303 },
304 {
305 .name = "overwrite",
306 .type = FIO_OPT_INT,
307 .off1 = td_var_offset(overwrite)
308 },
309#ifdef FIO_HAVE_CPU_AFFINITY
310 {
311 .name = "cpumask",
312 .type = FIO_OPT_INT,
313 .cb = str_cpumask_cb,
314 },
315#endif
316 {
317 .name = "end_fsync",
318 .type = FIO_OPT_INT,
319 .off1 = td_var_offset(end_fsync)
320 },
321 {
322 .name = "unlink",
323 .type = FIO_OPT_STR_SET,
324 .off1 = td_var_offset(unlink),
325 },
326 {
327 .name = "exitall",
328 .type = FIO_OPT_STR_SET,
329 .cb = str_exitall_cb,
330 },
331 {
332 .name = "stonewall",
333 .type = FIO_OPT_STR_SET,
334 .off1 = td_var_offset(stonewall),
335 },
336 {
337 .name = "thread",
338 .type = FIO_OPT_STR_SET,
339 .off1 = td_var_offset(thread),
340 },
341 {
342 .name = "write_bw_log",
343 .type = FIO_OPT_STR_SET,
344 .off1 = td_var_offset(write_bw_log),
345 },
346 {
347 .name = "write_lat_log",
348 .type = FIO_OPT_STR_SET,
349 .off1 = td_var_offset(write_lat_log),
350 },
bb8895e0
JA		 351 {
352 .name = "norandommap",
353 .type = FIO_OPT_STR_SET,
354 .off1 = td_var_offset(norandommap),
355 },
690adba3
JA		 356 {
357 .name = "bs_unaligned",
358 .type = FIO_OPT_STR_SET,
359 .off1 = td_var_offset(bs_unaligned),
360 },
e1f36503
JA		 361 {
362 .name = NULL,
363 },
364};
365
b4692828
JA		 366#define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
367#define FIO_CMD_OPTS (16)
368#define FIO_GETOPT_JOB (0x89988998)
369
370/*
371 * Command line options. These will contain the above, plus a few
372 * extra that only pertain to fio itself and not jobs.
373 */
374static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
375 {
376 .name = "output",
377 .has_arg = required_argument,
378 .val = 'o',
379 },
380 {
381 .name = "timeout",
382 .has_arg = required_argument,
383 .val = 't',
384 },
385 {
386 .name = "latency-log",
387 .has_arg = required_argument,
388 .val = 'l',
389 },
390 {
391 .name = "bandwidth-log",
392 .has_arg = required_argument,
393 .val = 'b',
394 },
395 {
396 .name = "minimal",
397 .has_arg = optional_argument,
398 .val = 'm',
399 },
400 {
401 .name = "version",
402 .has_arg = no_argument,
403 .val = 'v',
404 },
405 {
406 .name = NULL,
407 },
408};
409
972cfd25 410static int def_timeout = DEF_TIMEOUT;
972cfd25 411
c3054f90 412static char fio_version_string[] = "fio 1.8";
ebac4655 413
972cfd25 414static char **ini_file;
ebac4655
JA		 415static int max_jobs = MAX_JOBS;
416
417struct thread_data def_thread;
418struct thread_data *threads = NULL;
419
420int rate_quit = 0;
ebac4655 421int exitall_on_terminate = 0;
c6ae0a5b 422int terse_output = 0;
c04f7ec3 423unsigned long long mlock_size = 0;
eb8bbf48
JA		 424FILE *f_out = NULL;
425FILE *f_err = NULL;
ebac4655 426
ec94ec56
JA		 427static int write_lat_log = DEF_WRITE_LAT_LOG;
428static int write_bw_log = DEF_WRITE_BW_LOG;
429
906c8d75
JA		 430/*
431 * Return a free job structure.
432 */
ebac4655
JA		 433static struct thread_data *get_new_job(int global, struct thread_data *parent)
434{
435 struct thread_data *td;
436
437 if (global)
438 return &def_thread;
439 if (thread_number >= max_jobs)
440 return NULL;
441
442 td = &threads[thread_number++];
ddaeaa5a 443 *td = *parent;
ebac4655 444
ebac4655 445 td->thread_number = thread_number;
ebac4655
JA		 446 return td;
447}
448
449static void put_job(struct thread_data *td)
450{
549577a7
JA		 451 if (td == &def_thread)
452 return;
453
ebac4655
JA		 454 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
455 thread_number--;
456}
457
dad915e3
JA		 458/*
459 * Lazy way of fixing up options that depend on each other. We could also
460 * define option callback handlers, but this is easier.
461 */
e1f36503
JA		 462static void fixup_options(struct thread_data *td)
463{
e1f36503
JA		 464 if (!td->rwmixread && td->rwmixwrite)
465 td->rwmixread = 100 - td->rwmixwrite;
dad915e3 466
076efc7c
JA		 467 if (td->write_iolog_file && td->read_iolog_file) {
468 log_err("fio: read iolog overrides write_iolog\n");
469 free(td->write_iolog_file);
470 td->write_iolog_file = NULL;
471 }
16b462ae
JA		 472
473 if (td->io_ops->flags & FIO_SYNCIO)
474 td->iodepth = 1;
475 else {
476 if (!td->iodepth)
477 td->iodepth = td->nr_files;
478 }
479
480 /*
481 * only really works for sequential io for now, and with 1 file
482 */
483 if (td->zone_size && !td->sequential && td->nr_files == 1)
484 td->zone_size = 0;
485
486 /*
487 * Reads can do overwrites, we always need to pre-create the file
488 */
489 if (td_read(td) || td_rw(td))
490 td->overwrite = 1;
491
a00735e6
JA		 492 if (!td->min_bs[DDIR_READ])
493 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
494 if (!td->max_bs[DDIR_READ])
495 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
496 if (!td->min_bs[DDIR_WRITE])
75e6f36f 497 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
a00735e6 498 if (!td->max_bs[DDIR_WRITE])
75e6f36f 499 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
a00735e6
JA		 500
501 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
502
16b462ae
JA		 503 if (td_read(td) && !td_rw(td))
504 td->verify = 0;
bb8895e0
JA		 505
506 if (td->norandommap && td->verify != VERIFY_NONE) {
507 log_err("fio: norandommap given, verify disabled\n");
508 td->verify = VERIFY_NONE;
509 }
690adba3
JA		 510 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
511 log_err("fio: bs_unaligned may not work with raw io\n");
e1f36503
JA		 512}
513
f8977ee6
JA		 514/*
515 * This function leaks the buffer
516 */
517static char *to_kmg(unsigned int val)
518{
519 char *buf = malloc(32);
520 char post[] = { 0, 'K', 'G', 'P', -1 };
521 char *p = post;
522
523 while (*p != -1) {
524 if (val & 1023)
525 break;
526
527 val >>= 10;
528 p++;
529 }
530
531 snprintf(buf, 31, "%u%c", val, *p);
532 return buf;
533}
534
906c8d75
JA		 535/*
536 * Adds a job to the list of things todo. Sanitizes the various options
537 * to make sure we don't have conflicts, and initializes various
538 * members of td.
539 */
75154845 540static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 541{
3d60d1ed
JA		 542 char *ddir_str[] = { "read", "write", "randread", "randwrite",
543 "rw", NULL, "randrw" };
ebac4655 544 struct stat sb;
53cdc686
JA		 545 int numjobs, ddir, i;
546 struct fio_file *f;
ebac4655 547
ebac4655
JA		 548 /*
549 * the def_thread is just for options, it's not a real job
550 */
551 if (td == &def_thread)
552 return 0;
553
df64119d
JA		 554 /*
555 * Set default io engine, if none set
556 */
557 if (!td->io_ops) {
558 td->io_ops = load_ioengine(td, DEF_IO_ENGINE_NAME);
559 if (!td->io_ops) {
560 log_err("default engine %s not there?\n", DEF_IO_ENGINE_NAME);
561 return 1;
562 }
563 }
564
690adba3
JA		 565 if (td->odirect)
566 td->io_ops->flags |= FIO_RAWIO;
567
16b462ae 568 fixup_options(td);
9cc935a1 569
ebac4655 570 td->filetype = FIO_TYPE_FILE;
0af7b542
JA		 571 if (!stat(jobname, &sb)) {
572 if (S_ISBLK(sb.st_mode))
573 td->filetype = FIO_TYPE_BD;
574 else if (S_ISCHR(sb.st_mode))
575 td->filetype = FIO_TYPE_CHAR;
576 }
ebac4655 577
13f8e2d2
JA		 578 if (td->filename)
579 td->nr_uniq_files = 1;
580 else
581 td->nr_uniq_files = td->nr_files;
582
583 if (td->filetype == FIO_TYPE_FILE || td->filename) {
e9c047a0 584 char tmp[PATH_MAX];
53cdc686
JA		 585 int len = 0;
586 int i;
e9c047a0 587
ef899b63 588 if (td->directory && td->directory[0] != '\0')
53cdc686 589 sprintf(tmp, "%s/", td->directory);
ebac4655 590
53cdc686
JA		 591 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
592
593 for_each_file(td, f, i) {
594 memset(f, 0, sizeof(*f));
595 f->fd = -1;
596
13f8e2d2
JA		 597 if (td->filename)
598 sprintf(tmp + len, "%s", td->filename);
599 else
600 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
53cdc686
JA		 601 f->file_name = strdup(tmp);
602 }
603 } else {
604 td->nr_files = 1;
605 td->files = malloc(sizeof(struct fio_file));
606 f = &td->files[0];
607
608 memset(f, 0, sizeof(*f));
609 f->fd = -1;
610 f->file_name = strdup(jobname);
611 }
612
613 for_each_file(td, f, i) {
614 f->file_size = td->total_file_size / td->nr_files;
615 f->file_offset = td->start_offset;
616 }
617
bbfd6b00 618 fio_sem_init(&td->mutex, 0);
ebac4655
JA		 619
620 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
621 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
622 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
623
ebac4655
JA		 624 if (td->stonewall && td->thread_number > 1)
625 groupid++;
626
627 td->groupid = groupid;
628
629 if (setup_rate(td))
630 goto err;
631
ec94ec56 632 if (td->write_lat_log) {
ebac4655
JA		 633 setup_log(&td->slat_log);
634 setup_log(&td->clat_log);
635 }
ec94ec56 636 if (td->write_bw_log)
ebac4655
JA		 637 setup_log(&td->bw_log);
638
b4692828
JA		 639 if (!td->name)
640 td->name = strdup(jobname);
01452055 641
3d60d1ed 642 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
75154845 643
c6ae0a5b 644 if (!terse_output) {
b990b5c0 645 if (!job_add_num) {
2866c82d 646 if (td->io_ops->flags & FIO_CPUIO)
b990b5c0 647 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
f8977ee6
JA		 648 else {
649 char *c1, *c2, *c3, *c4;
650
651 c1 = to_kmg(td->min_bs[DDIR_READ]);
652 c2 = to_kmg(td->max_bs[DDIR_READ]);
653 c3 = to_kmg(td->min_bs[DDIR_WRITE]);
654 c4 = to_kmg(td->max_bs[DDIR_WRITE]);
655
656 fprintf(f_out, "%s: (g=%d): rw=%s, odir=%d, bs=%s-%s/%s-%s, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, c1, c2, c3, c4, td->rate, td->io_ops->name, td->iodepth);
657
658 free(c1);
659 free(c2);
660 free(c3);
661 free(c4);
662 }
b990b5c0 663 } else if (job_add_num == 1)
c6ae0a5b
JA		 664 fprintf(f_out, "...\n");
665 }
ebac4655
JA		 666
667 /*
668 * recurse add identical jobs, clear numjobs and stonewall options
669 * as they don't apply to sub-jobs
670 */
671 numjobs = td->numjobs;
672 while (--numjobs) {
673 struct thread_data *td_new = get_new_job(0, td);
674
675 if (!td_new)
676 goto err;
677
678 td_new->numjobs = 1;
679 td_new->stonewall = 0;
75154845 680 job_add_num = numjobs - 1;
ebac4655 681
75154845 682 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA		 683 goto err;
684 }
685 return 0;
686err:
687 put_job(td);
688 return -1;
689}
690
906c8d75
JA		 691/*
692 * Initialize the various random states we need (random io, block size ranges,
693 * read/write mix, etc).
694 */
ebac4655
JA		 695int init_random_state(struct thread_data *td)
696{
a6ccc7be 697 unsigned long seeds[4];
53cdc686 698 int fd, num_maps, blocks, i;
0ab8db89 699 struct fio_file *f;
ebac4655 700
f48b467c
JA		 701 if (td->io_ops->flags & FIO_CPUIO)
702 return 0;
703
1ac267bb 704 fd = open("/dev/urandom", O_RDONLY);
ebac4655
JA		 705 if (fd == -1) {
706 td_verror(td, errno);
707 return 1;
708 }
709
a6ccc7be 710 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
ebac4655
JA		 711 td_verror(td, EIO);
712 close(fd);
713 return 1;
714 }
715
716 close(fd);
717
6dfd46b9
JA		 718 os_random_seed(seeds[0], &td->bsrange_state);
719 os_random_seed(seeds[1], &td->verify_state);
720 os_random_seed(seeds[2], &td->rwmix_state);
ebac4655
JA		 721
722 if (td->sequential)
723 return 0;
724
9ebc27e1 725 if (td->rand_repeatable)
a6ccc7be 726 seeds[3] = DEF_RANDSEED;
ebac4655 727
bb8895e0
JA		 728 if (!td->norandommap) {
729 for_each_file(td, f, i) {
a00735e6 730 blocks = (f->file_size + td->rw_min_bs - 1) / td->rw_min_bs;
c7c280ed 731 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
bb8895e0
JA		 732 f->file_map = malloc(num_maps * sizeof(long));
733 f->num_maps = num_maps;
734 memset(f->file_map, 0, num_maps * sizeof(long));
735 }
53cdc686 736 }
ebac4655 737
6dfd46b9 738 os_random_seed(seeds[3], &td->random_state);
ebac4655
JA		 739 return 0;
740}
741
742static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
743{
744#ifdef FIO_HAVE_CPU_AFFINITY
745 unsigned int i;
746
747 CPU_ZERO(&cpumask);
748
749 for (i = 0; i < sizeof(int) * 8; i++) {
750 if ((1 << i) & cpu)
751 CPU_SET(i, &cpumask);
752 }
753#endif
754}
755
ebac4655
JA		 756static int is_empty_or_comment(char *line)
757{
758 unsigned int i;
759
760 for (i = 0; i < strlen(line); i++) {
761 if (line[i] == ';')
762 return 1;
763 if (!isspace(line[i]) && !iscntrl(line[i]))
764 return 0;
765 }
766
767 return 1;
768}
769
b4692828 770static int str_rw_cb(void *data, const char *mem)
ebac4655 771{
cb2c86fd
JA		 772 struct thread_data *td = data;
773
ebac4655
JA		 774 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
775 td->ddir = DDIR_READ;
776 td->sequential = 1;
777 return 0;
778 } else if (!strncmp(mem, "randread", 8)) {
779 td->ddir = DDIR_READ;
780 td->sequential = 0;
781 return 0;
782 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
783 td->ddir = DDIR_WRITE;
784 td->sequential = 1;
785 return 0;
786 } else if (!strncmp(mem, "randwrite", 9)) {
787 td->ddir = DDIR_WRITE;
788 td->sequential = 0;
789 return 0;
3d60d1ed
JA		 790 } else if (!strncmp(mem, "rw", 2)) {
791 td->ddir = 0;
792 td->iomix = 1;
793 td->sequential = 1;
794 return 0;
795 } else if (!strncmp(mem, "randrw", 6)) {
796 td->ddir = 0;
797 td->iomix = 1;
798 td->sequential = 0;
799 return 0;
ebac4655
JA		 800 }
801
3b70d7e5 802 log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
ebac4655
JA		 803 return 1;
804}
805
b4692828 806static int str_verify_cb(void *data, const char *mem)
ebac4655 807{
cb2c86fd
JA		 808 struct thread_data *td = data;
809
ebac4655
JA		 810 if (!strncmp(mem, "0", 1)) {
811 td->verify = VERIFY_NONE;
812 return 0;
813 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
814 td->verify = VERIFY_MD5;
815 return 0;
816 } else if (!strncmp(mem, "crc32", 5)) {
817 td->verify = VERIFY_CRC32;
818 return 0;
819 }
820
3b70d7e5 821 log_err("fio: verify types: md5, crc32\n");
ebac4655
JA		 822 return 1;
823}
824
b4692828 825static int str_mem_cb(void *data, const char *mem)
ebac4655 826{
cb2c86fd
JA		 827 struct thread_data *td = data;
828
ebac4655
JA		 829 if (!strncmp(mem, "malloc", 6)) {
830 td->mem_type = MEM_MALLOC;
831 return 0;
832 } else if (!strncmp(mem, "shm", 3)) {
833 td->mem_type = MEM_SHM;
834 return 0;
835 } else if (!strncmp(mem, "mmap", 4)) {
836 td->mem_type = MEM_MMAP;
837 return 0;
838 }
839
3b70d7e5 840 log_err("fio: mem type: malloc, shm, mmap\n");
ebac4655
JA		 841 return 1;
842}
843
b4692828 844static int str_ioengine_cb(void *data, const char *str)
ebac4655 845{
cb2c86fd
JA		 846 struct thread_data *td = data;
847
2866c82d
JA		 848 td->io_ops = load_ioengine(td, str);
849 if (td->io_ops)
b990b5c0 850 return 0;
ebac4655 851
b990b5c0 852 log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice, cpu\n");
ebac4655
JA		 853 return 1;
854}
855
e1f36503
JA		 856static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
857{
858 mlock_size = *val;
859 return 0;
860}
861
34cfcdaf 862#ifdef FIO_HAVE_IOPRIO
e1f36503
JA		 863static int str_prioclass_cb(void *data, unsigned int *val)
864{
865 struct thread_data *td = data;
866
867 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
868 return 0;
869}
870
871static int str_prio_cb(void *data, unsigned int *val)
872{
873 struct thread_data *td = data;
874
875 td->ioprio |= *val;
876 return 0;
877}
34cfcdaf 878#endif
e1f36503
JA		 879
880static int str_exitall_cb(void)
881{
882 exitall_on_terminate = 1;
883 return 0;
884}
885
886static int str_cpumask_cb(void *data, unsigned int *val)
887{
888 struct thread_data *td = data;
889
890 fill_cpu_mask(td->cpumask, *val);
891 return 0;
892}
893
07261983
JA		 894/*
895 * This is our [ini] type file parser.
896 */
0c7e37a0 897int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 898{
e1f36503 899 unsigned int global;
ebac4655 900 struct thread_data *td;
fee3bb48 901 char *string, *name;
ebac4655
JA		 902 fpos_t off;
903 FILE *f;
904 char *p;
0c7e37a0 905 int ret = 0, stonewall;
ebac4655
JA		 906
907 f = fopen(file, "r");
908 if (!f) {
aea47d44 909 perror("fopen job file");
ebac4655
JA		 910 return 1;
911 }
912
913 string = malloc(4096);
914 name = malloc(256);
fee3bb48 915 memset(name, 0, 256);
ebac4655 916
0c7e37a0 917 stonewall = stonewall_flag;
7c124ac1
JA		 918 do {
919 p = fgets(string, 4095, f);
920 if (!p)
45410acb 921 break;
ebac4655
JA		 922 if (is_empty_or_comment(p))
923 continue;
fee3bb48 924 if (sscanf(p, "[%255s]", name) != 1)
ebac4655
JA		 925 continue;
926
927 global = !strncmp(name, "global", 6);
928
929 name[strlen(name) - 1] = '\0';
930
931 td = get_new_job(global, &def_thread);
45410acb
JA		 932 if (!td) {
933 ret = 1;
934 break;
935 }
ebac4655 936
972cfd25
JA		 937 /*
938 * Seperate multiple job files by a stonewall
939 */
f9481919 940 if (!global && stonewall) {
972cfd25
JA		 941 td->stonewall = stonewall;
942 stonewall = 0;
943 }
944
ebac4655
JA		 945 fgetpos(f, &off);
946 while ((p = fgets(string, 4096, f)) != NULL) {
947 if (is_empty_or_comment(p))
948 continue;
e1f36503 949
b6754f9d 950 strip_blank_front(&p);
7c124ac1
JA		 951
952 if (p[0] == '[')
953 break;
954
4ae3f763 955 strip_blank_end(p);
aea47d44 956
e1f36503 957 fgetpos(f, &off);
ebac4655 958
45410acb
JA		 959 /*
960 * Don't break here, continue parsing options so we
961 * dump all the bad ones. Makes trial/error fixups
962 * easier on the user.
963 */
7c124ac1 964 ret |= parse_option(p, options, td);
ebac4655 965 }
ebac4655 966
45410acb
JA		 967 if (!ret) {
968 fsetpos(f, &off);
969 ret = add_job(td, name, 0);
b1508cf9
JA		 970 } else {
971 log_err("fio: job %s dropped\n", name);
972 put_job(td);
45410acb 973 }
7c124ac1 974 } while (!ret);
ebac4655
JA		 975
976 free(string);
977 free(name);
978 fclose(f);
45410acb 979 return ret;
ebac4655
JA		 980}
981
982static int fill_def_thread(void)
983{
984 memset(&def_thread, 0, sizeof(def_thread));
985
986 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
987 perror("sched_getaffinity");
988 return 1;
989 }
990
991 /*
992 * fill globals
993 */
994 def_thread.ddir = DDIR_READ;
3d60d1ed 995 def_thread.iomix = 0;
a00735e6
JA		 996 def_thread.bs[DDIR_READ] = DEF_BS;
997 def_thread.bs[DDIR_WRITE] = DEF_BS;
998 def_thread.min_bs[DDIR_READ] = def_thread.min_bs[DDIR_WRITE] = 0;
999 def_thread.max_bs[DDIR_READ] = def_thread.max_bs[DDIR_WRITE] = 0;
9ebc27e1 1000 def_thread.odirect = DEF_ODIRECT;
ebac4655 1001 def_thread.ratecycle = DEF_RATE_CYCLE;
9ebc27e1 1002 def_thread.sequential = DEF_SEQUENTIAL;
972cfd25 1003 def_thread.timeout = def_timeout;
ebac4655
JA		 1004 def_thread.overwrite = DEF_OVERWRITE;
1005 def_thread.invalidate_cache = DEF_INVALIDATE;
1006 def_thread.sync_io = DEF_SYNCIO;
1007 def_thread.mem_type = MEM_MALLOC;
1008 def_thread.bw_avg_time = DEF_BWAVGTIME;
1009 def_thread.create_serialize = DEF_CREATE_SER;
1010 def_thread.create_fsync = DEF_CREATE_FSYNC;
1011 def_thread.loops = DEF_LOOPS;
1012 def_thread.verify = DEF_VERIFY;
1013 def_thread.stonewall = DEF_STONEWALL;
1014 def_thread.numjobs = DEF_NUMJOBS;
1015 def_thread.use_thread = DEF_USE_THREAD;
a6ccc7be
JA		 1016 def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
1017 def_thread.rwmixread = DEF_RWMIX_READ;
b6f4d880 1018 def_thread.nice = DEF_NICE;
9ebc27e1 1019 def_thread.rand_repeatable = DEF_RAND_REPEAT;
53cdc686 1020 def_thread.nr_files = DEF_NR_FILES;
f6cbb269 1021 def_thread.unlink = DEF_UNLINK;
ec94ec56
JA		 1022 def_thread.write_bw_log = write_bw_log;
1023 def_thread.write_lat_log = write_lat_log;
bb8895e0 1024 def_thread.norandommap = DEF_NO_RAND_MAP;
ebac4655
JA		 1025#ifdef FIO_HAVE_DISK_UTIL
1026 def_thread.do_disk_util = 1;
1027#endif
1028
1029 return 0;
1030}
1031
0ab8db89 1032static void usage(void)
4785f995
JA		 1033{
1034 printf("%s\n", fio_version_string);
b4692828
JA		 1035 printf("\t--output\tWrite output to file\n");
1036 printf("\t--timeout\tRuntime in seconds\n");
1037 printf("\t--latency-log\tGenerate per-job latency logs\n");
1038 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1039 printf("\t--minimal\tMinimal (terse) output\n");
1040 printf("\t--version\tPrint version info and exit\n");
4785f995
JA		 1041}
1042
972cfd25 1043static int parse_cmd_line(int argc, char *argv[])
ebac4655 1044{
b4692828 1045 struct thread_data *td = NULL;
c2b1e753 1046 int c, ini_idx = 0, lidx, ret;
ebac4655 1047
b4692828 1048 while ((c = getopt_long(argc, argv, "", long_options, &lidx)) != -1) {
ebac4655 1049 switch (c) {
b4692828
JA		 1050 case 't':
1051 def_timeout = atoi(optarg);
1052 break;
1053 case 'l':
1054 write_lat_log = 1;
1055 break;
1056 case 'w':
1057 write_bw_log = 1;
1058 break;
1059 case 'o':
1060 f_out = fopen(optarg, "w+");
1061 if (!f_out) {
1062 perror("fopen output");
1063 exit(1);
1064 }
1065 f_err = f_out;
1066 break;
1067 case 'm':
1068 terse_output = 1;
1069 break;
1070 case 'h':
1071 usage();
1072 exit(0);
1073 case 'v':
1074 printf("%s\n", fio_version_string);
1075 exit(0);
1076 case FIO_GETOPT_JOB: {
1077 const char *opt = long_options[lidx].name;
1078 char *val = optarg;
1079
c2b1e753
JA		 1080 if (!strncmp(opt, "name", 4) && td) {
1081 ret = add_job(td, td->name ?: "fio", 0);
1082 if (ret) {
1083 put_job(td);
1084 return 0;
1085 }
1086 td = NULL;
1087 }
b4692828 1088 if (!td) {
38d0adb0 1089 int global = !strncmp(val, "global", 6);
c2b1e753
JA		 1090
1091 td = get_new_job(global, &def_thread);
b4692828
JA		 1092 if (!td)
1093 return 0;
1094 }
38d0adb0 1095
b1508cf9
JA		 1096 ret = parse_cmd_option(opt, val, options, td);
1097 if (ret) {
1098 log_err("fio: job dropped\n");
1099 put_job(td);
1100 td = NULL;
1101 }
b4692828
JA		 1102 break;
1103 }
1104 default:
1105 printf("optarg <<%s>>\n", argv[optind]);
1106 break;
ebac4655
JA		 1107 }
1108 }
c9fad893 1109
b4692828 1110 if (td) {
c2b1e753 1111 ret = add_job(td, td->name ?: "fio", 0);
b4692828
JA		 1112 if (ret)
1113 put_job(td);
972cfd25 1114 }
774a6177 1115
b4692828
JA		 1116 while (optind < argc) {
1117 ini_idx++;
1118 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1119 ini_file[ini_idx - 1] = strdup(argv[optind]);
1120 optind++;
eb8bbf48 1121 }
972cfd25
JA		 1122
1123 return ini_idx;
ebac4655
JA		 1124}
1125
1126static void free_shm(void)
1127{
1128 struct shmid_ds sbuf;
1129
1130 if (threads) {
2c0ecd28 1131 shmdt((void *) threads);
ebac4655
JA		 1132 threads = NULL;
1133 shmctl(shm_id, IPC_RMID, &sbuf);
1134 }
1135}
1136
906c8d75
JA		 1137/*
1138 * The thread area is shared between the main process and the job
1139 * threads/processes. So setup a shared memory segment that will hold
1140 * all the job info.
1141 */
ebac4655
JA		 1142static int setup_thread_area(void)
1143{
1144 /*
1145 * 1024 is too much on some machines, scale max_jobs if
1146 * we get a failure that looks like too large a shm segment
1147 */
1148 do {
906c8d75 1149 size_t size = max_jobs * sizeof(struct thread_data);
ebac4655 1150
906c8d75 1151 shm_id = shmget(0, size, IPC_CREAT | 0600);
ebac4655
JA		 1152 if (shm_id != -1)
1153 break;
1154 if (errno != EINVAL) {
1155 perror("shmget");
1156 break;
1157 }
1158
1159 max_jobs >>= 1;
1160 } while (max_jobs);
1161
1162 if (shm_id == -1)
1163 return 1;
1164
1165 threads = shmat(shm_id, NULL, 0);
1166 if (threads == (void *) -1) {
1167 perror("shmat");
1168 return 1;
1169 }
1170
1171 atexit(free_shm);
1172 return 0;
1173}
1174
b4692828
JA		 1175/*
1176 * Copy the fio options into the long options map, so we mirror
1177 * job and cmd line options.
1178 */
1179static void dupe_job_options(void)
1180{
1181 struct fio_option *o;
1182 unsigned int i;
1183
1184 i = 0;
1185 while (long_options[i].name)
1186 i++;
1187
1188 o = &options[0];
1189 while (o->name) {
1190 long_options[i].name = o->name;
1191 long_options[i].val = FIO_GETOPT_JOB;
1192 if (o->type == FIO_OPT_STR_SET)
1193 long_options[i].has_arg = no_argument;
1194 else
1195 long_options[i].has_arg = required_argument;
1196
1197 i++;
1198 o++;
1199 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1200 }
1201}
1202
ebac4655
JA		 1203int parse_options(int argc, char *argv[])
1204{
972cfd25
JA		 1205 int job_files, i;
1206
b4692828
JA		 1207 f_out = stdout;
1208 f_err = stderr;
1209
1210 dupe_job_options();
1211
ebac4655
JA		 1212 if (setup_thread_area())
1213 return 1;
1214 if (fill_def_thread())
1215 return 1;
1216
972cfd25 1217 job_files = parse_cmd_line(argc, argv);
ebac4655 1218
972cfd25
JA		 1219 for (i = 0; i < job_files; i++) {
1220 if (fill_def_thread())
1221 return 1;
0c7e37a0 1222 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1223 return 1;
88c6ed80 1224 free(ini_file[i]);
972cfd25 1225 }
ebac4655 1226
88c6ed80 1227 free(ini_file);
b4692828
JA		 1228
1229 if (!thread_number) {
1230 log_err("No jobs defined(s)\n");
b4692828
JA		 1231 return 1;
1232 }
1233
ebac4655
JA		 1234 return 0;
1235}
fio - Flexible IO Tester