Commit | Line | Data |
---|---|---|
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 | 11 | #include <getopt.h> |
ebac4655 JA |
12 | #include <sys/ipc.h> |
13 | #include <sys/shm.h> | |
14 | #include <sys/types.h> | |
15 | #include <sys/stat.h> | |
16 | ||
17 | #include "fio.h" | |
cb2c86fd | 18 | #include "parse.h" |
ebac4655 | 19 | |
e6203e9e | 20 | static char fio_version_string[] = "fio 1.17.1"; |
214e1eca | 21 | |
ee738499 | 22 | #define FIO_RANDSEED (0xb1899bedUL) |
ebac4655 | 23 | |
214e1eca JA |
24 | static char **ini_file; |
25 | static int max_jobs = MAX_JOBS; | |
cca73aa7 | 26 | static int dump_cmdline; |
724e4435 | 27 | static int read_only; |
e1f36503 | 28 | |
214e1eca JA |
29 | struct thread_data def_thread; |
30 | struct thread_data *threads = NULL; | |
e1f36503 | 31 | |
214e1eca JA |
32 | int exitall_on_terminate = 0; |
33 | int terse_output = 0; | |
34 | unsigned long long mlock_size = 0; | |
35 | FILE *f_out = NULL; | |
36 | FILE *f_err = NULL; | |
ee738499 | 37 | |
214e1eca JA |
38 | int write_bw_log = 0; |
39 | ||
40 | static int def_timeout = 0; | |
41 | static int write_lat_log = 0; | |
e1f36503 | 42 | |
214e1eca | 43 | static int prev_group_jobs; |
b4692828 JA |
44 | |
45 | /* | |
46 | * Command line options. These will contain the above, plus a few | |
47 | * extra that only pertain to fio itself and not jobs. | |
48 | */ | |
214e1eca | 49 | static struct option long_options[FIO_NR_OPTIONS] = { |
b4692828 JA |
50 | { |
51 | .name = "output", | |
52 | .has_arg = required_argument, | |
53 | .val = 'o', | |
54 | }, | |
55 | { | |
56 | .name = "timeout", | |
57 | .has_arg = required_argument, | |
58 | .val = 't', | |
59 | }, | |
60 | { | |
61 | .name = "latency-log", | |
62 | .has_arg = required_argument, | |
63 | .val = 'l', | |
64 | }, | |
65 | { | |
66 | .name = "bandwidth-log", | |
67 | .has_arg = required_argument, | |
68 | .val = 'b', | |
69 | }, | |
70 | { | |
71 | .name = "minimal", | |
72 | .has_arg = optional_argument, | |
73 | .val = 'm', | |
74 | }, | |
75 | { | |
76 | .name = "version", | |
77 | .has_arg = no_argument, | |
78 | .val = 'v', | |
79 | }, | |
fd28ca49 JA |
80 | { |
81 | .name = "help", | |
82 | .has_arg = no_argument, | |
83 | .val = 'h', | |
84 | }, | |
85 | { | |
86 | .name = "cmdhelp", | |
320beefe | 87 | .has_arg = optional_argument, |
fd28ca49 JA |
88 | .val = 'c', |
89 | }, | |
cca73aa7 JA |
90 | { |
91 | .name = "showcmd", | |
92 | .has_arg = no_argument, | |
724e4435 JA |
93 | .val = 's', |
94 | }, | |
95 | { | |
96 | .name = "readonly", | |
97 | .has_arg = no_argument, | |
98 | .val = 'r', | |
cca73aa7 | 99 | }, |
b4692828 JA |
100 | { |
101 | .name = NULL, | |
102 | }, | |
103 | }; | |
104 | ||
9728ce37 JB |
105 | FILE *get_f_out() |
106 | { | |
107 | return f_out; | |
108 | } | |
109 | ||
110 | FILE *get_f_err() | |
111 | { | |
112 | return f_err; | |
113 | } | |
114 | ||
906c8d75 JA |
115 | /* |
116 | * Return a free job structure. | |
117 | */ | |
ebac4655 JA |
118 | static struct thread_data *get_new_job(int global, struct thread_data *parent) |
119 | { | |
120 | struct thread_data *td; | |
121 | ||
122 | if (global) | |
123 | return &def_thread; | |
124 | if (thread_number >= max_jobs) | |
125 | return NULL; | |
126 | ||
127 | td = &threads[thread_number++]; | |
ddaeaa5a | 128 | *td = *parent; |
ebac4655 | 129 | |
cade3ef4 | 130 | dup_files(td, parent); |
d23bb327 | 131 | options_mem_dupe(td); |
cade3ef4 | 132 | |
ebac4655 | 133 | td->thread_number = thread_number; |
ebac4655 JA |
134 | return td; |
135 | } | |
136 | ||
137 | static void put_job(struct thread_data *td) | |
138 | { | |
549577a7 JA |
139 | if (td == &def_thread) |
140 | return; | |
141 | ||
16edf25d | 142 | if (td->error) |
6d86144d | 143 | log_info("fio: %s\n", td->verror); |
16edf25d | 144 | |
ebac4655 JA |
145 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); |
146 | thread_number--; | |
147 | } | |
148 | ||
127f6865 JA |
149 | static int setup_rate(struct thread_data *td) |
150 | { | |
151 | unsigned long nr_reads_per_msec; | |
152 | unsigned long long rate; | |
153 | unsigned int bs; | |
154 | ||
2dc1bbeb | 155 | if (!td->o.rate && !td->o.rate_iops) |
127f6865 JA |
156 | return 0; |
157 | ||
158 | if (td_rw(td)) | |
2dc1bbeb | 159 | bs = td->o.rw_min_bs; |
127f6865 | 160 | else if (td_read(td)) |
2dc1bbeb | 161 | bs = td->o.min_bs[DDIR_READ]; |
127f6865 | 162 | else |
2dc1bbeb | 163 | bs = td->o.min_bs[DDIR_WRITE]; |
127f6865 | 164 | |
2dc1bbeb JA |
165 | if (td->o.rate) { |
166 | rate = td->o.rate; | |
127f6865 JA |
167 | nr_reads_per_msec = (rate * 1024 * 1000LL) / bs; |
168 | } else | |
2dc1bbeb | 169 | nr_reads_per_msec = td->o.rate_iops * 1000UL; |
127f6865 JA |
170 | |
171 | if (!nr_reads_per_msec) { | |
172 | log_err("rate lower than supported\n"); | |
173 | return -1; | |
174 | } | |
175 | ||
176 | td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec; | |
177 | td->rate_pending_usleep = 0; | |
178 | return 0; | |
179 | } | |
180 | ||
dad915e3 JA |
181 | /* |
182 | * Lazy way of fixing up options that depend on each other. We could also | |
183 | * define option callback handlers, but this is easier. | |
184 | */ | |
4e991c23 | 185 | static int fixup_options(struct thread_data *td) |
e1f36503 | 186 | { |
2dc1bbeb | 187 | struct thread_options *o = &td->o; |
dad915e3 | 188 | |
724e4435 JA |
189 | if (read_only && td_write(td)) { |
190 | log_err("fio: job <%s> has write bit set, but fio is in read-only mode\n", td->o.name); | |
191 | return 1; | |
192 | } | |
193 | ||
e47f799f JA |
194 | if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100) |
195 | o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ]; | |
2dc1bbeb JA |
196 | |
197 | if (o->write_iolog_file && o->read_iolog_file) { | |
076efc7c | 198 | log_err("fio: read iolog overrides write_iolog\n"); |
2dc1bbeb JA |
199 | free(o->write_iolog_file); |
200 | o->write_iolog_file = NULL; | |
076efc7c | 201 | } |
16b462ae JA |
202 | |
203 | if (td->io_ops->flags & FIO_SYNCIO) | |
2dc1bbeb | 204 | o->iodepth = 1; |
16b462ae | 205 | else { |
2dc1bbeb JA |
206 | if (!o->iodepth) |
207 | o->iodepth = o->open_files; | |
16b462ae JA |
208 | } |
209 | ||
210 | /* | |
211 | * only really works for sequential io for now, and with 1 file | |
212 | */ | |
2dc1bbeb JA |
213 | if (o->zone_size && td_random(td) && o->open_files == 1) |
214 | o->zone_size = 0; | |
16b462ae JA |
215 | |
216 | /* | |
217 | * Reads can do overwrites, we always need to pre-create the file | |
218 | */ | |
219 | if (td_read(td) || td_rw(td)) | |
2dc1bbeb | 220 | o->overwrite = 1; |
16b462ae | 221 | |
2dc1bbeb JA |
222 | if (!o->min_bs[DDIR_READ]) |
223 | o->min_bs[DDIR_READ]= o->bs[DDIR_READ]; | |
224 | if (!o->max_bs[DDIR_READ]) | |
225 | o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; | |
226 | if (!o->min_bs[DDIR_WRITE]) | |
227 | o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE]; | |
228 | if (!o->max_bs[DDIR_WRITE]) | |
229 | o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; | |
a00735e6 | 230 | |
2dc1bbeb | 231 | o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); |
a00735e6 | 232 | |
2dc1bbeb JA |
233 | if (!o->file_size_high) |
234 | o->file_size_high = o->file_size_low; | |
9c60ce64 | 235 | |
2dc1bbeb | 236 | if (o->norandommap && o->verify != VERIFY_NONE) { |
bb8895e0 | 237 | log_err("fio: norandommap given, verify disabled\n"); |
2dc1bbeb | 238 | o->verify = VERIFY_NONE; |
bb8895e0 | 239 | } |
2dc1bbeb | 240 | if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) |
690adba3 | 241 | log_err("fio: bs_unaligned may not work with raw io\n"); |
e0a22335 | 242 | |
48097d5c JA |
243 | /* |
244 | * thinktime_spin must be less than thinktime | |
245 | */ | |
2dc1bbeb JA |
246 | if (o->thinktime_spin > o->thinktime) |
247 | o->thinktime_spin = o->thinktime; | |
e916b390 JA |
248 | |
249 | /* | |
250 | * The low water mark cannot be bigger than the iodepth | |
251 | */ | |
2dc1bbeb | 252 | if (o->iodepth_low > o->iodepth || !o->iodepth_low) { |
9467b77c JA |
253 | /* |
254 | * syslet work around - if the workload is sequential, | |
255 | * we want to let the queue drain all the way down to | |
256 | * avoid seeking between async threads | |
257 | */ | |
258 | if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) | |
2dc1bbeb | 259 | o->iodepth_low = 1; |
9467b77c | 260 | else |
2dc1bbeb | 261 | o->iodepth_low = o->iodepth; |
9467b77c | 262 | } |
cb5ab512 JA |
263 | |
264 | /* | |
265 | * If batch number isn't set, default to the same as iodepth | |
266 | */ | |
2dc1bbeb JA |
267 | if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) |
268 | o->iodepth_batch = o->iodepth; | |
b5af8293 | 269 | |
2dc1bbeb JA |
270 | if (o->nr_files > td->files_index) |
271 | o->nr_files = td->files_index; | |
9f9214f2 | 272 | |
2dc1bbeb JA |
273 | if (o->open_files > o->nr_files || !o->open_files) |
274 | o->open_files = o->nr_files; | |
4e991c23 | 275 | |
2dc1bbeb | 276 | if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) { |
4e991c23 JA |
277 | log_err("fio: rate and rate_iops are mutually exclusive\n"); |
278 | return 1; | |
279 | } | |
2dc1bbeb | 280 | if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) { |
4e991c23 JA |
281 | log_err("fio: minimum rate exceeds rate\n"); |
282 | return 1; | |
283 | } | |
284 | ||
cf4464ca JA |
285 | if (!o->timeout && o->time_based) { |
286 | log_err("fio: time_based requires a runtime/timeout setting\n"); | |
287 | o->time_based = 0; | |
288 | } | |
289 | ||
4e991c23 | 290 | return 0; |
e1f36503 JA |
291 | } |
292 | ||
f8977ee6 JA |
293 | /* |
294 | * This function leaks the buffer | |
295 | */ | |
296 | static char *to_kmg(unsigned int val) | |
297 | { | |
298 | char *buf = malloc(32); | |
f3502ba2 | 299 | char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; |
f8977ee6 JA |
300 | char *p = post; |
301 | ||
245142ff | 302 | do { |
f8977ee6 JA |
303 | if (val & 1023) |
304 | break; | |
305 | ||
306 | val >>= 10; | |
307 | p++; | |
245142ff | 308 | } while (*p); |
f8977ee6 JA |
309 | |
310 | snprintf(buf, 31, "%u%c", val, *p); | |
311 | return buf; | |
312 | } | |
313 | ||
09629a90 JA |
314 | /* External engines are specified by "external:name.o") */ |
315 | static const char *get_engine_name(const char *str) | |
316 | { | |
317 | char *p = strstr(str, ":"); | |
318 | ||
319 | if (!p) | |
320 | return str; | |
321 | ||
322 | p++; | |
323 | strip_blank_front(&p); | |
324 | strip_blank_end(p); | |
325 | return p; | |
326 | } | |
327 | ||
e132cbae JA |
328 | static int exists_and_not_file(const char *filename) |
329 | { | |
330 | struct stat sb; | |
331 | ||
332 | if (lstat(filename, &sb) == -1) | |
333 | return 0; | |
334 | ||
335 | if (S_ISREG(sb.st_mode)) | |
336 | return 0; | |
337 | ||
338 | return 1; | |
339 | } | |
340 | ||
9c60ce64 JA |
341 | /* |
342 | * Initialize the various random states we need (random io, block size ranges, | |
343 | * read/write mix, etc). | |
344 | */ | |
345 | static int init_random_state(struct thread_data *td) | |
346 | { | |
347 | unsigned long seeds[6]; | |
68727076 | 348 | int fd; |
9c60ce64 JA |
349 | |
350 | fd = open("/dev/urandom", O_RDONLY); | |
351 | if (fd == -1) { | |
352 | td_verror(td, errno, "open"); | |
353 | return 1; | |
354 | } | |
355 | ||
356 | if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) { | |
357 | td_verror(td, EIO, "read"); | |
358 | close(fd); | |
359 | return 1; | |
360 | } | |
361 | ||
362 | close(fd); | |
363 | ||
364 | os_random_seed(seeds[0], &td->bsrange_state); | |
365 | os_random_seed(seeds[1], &td->verify_state); | |
366 | os_random_seed(seeds[2], &td->rwmix_state); | |
367 | ||
2dc1bbeb | 368 | if (td->o.file_service_type == FIO_FSERVICE_RANDOM) |
9c60ce64 JA |
369 | os_random_seed(seeds[3], &td->next_file_state); |
370 | ||
371 | os_random_seed(seeds[5], &td->file_size_state); | |
372 | ||
373 | if (!td_random(td)) | |
374 | return 0; | |
375 | ||
2dc1bbeb | 376 | if (td->o.rand_repeatable) |
9c60ce64 JA |
377 | seeds[4] = FIO_RANDSEED * td->thread_number; |
378 | ||
9c60ce64 JA |
379 | os_random_seed(seeds[4], &td->random_state); |
380 | return 0; | |
381 | } | |
382 | ||
906c8d75 JA |
383 | /* |
384 | * Adds a job to the list of things todo. Sanitizes the various options | |
385 | * to make sure we don't have conflicts, and initializes various | |
386 | * members of td. | |
387 | */ | |
75154845 | 388 | static int add_job(struct thread_data *td, const char *jobname, int job_add_num) |
ebac4655 | 389 | { |
413dd459 JA |
390 | const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, |
391 | "randread", "randwrite", "randrw" }; | |
af52b345 | 392 | unsigned int i; |
09629a90 | 393 | const char *engine; |
af52b345 | 394 | char fname[PATH_MAX]; |
e132cbae | 395 | int numjobs, file_alloced; |
ebac4655 | 396 | |
ebac4655 JA |
397 | /* |
398 | * the def_thread is just for options, it's not a real job | |
399 | */ | |
400 | if (td == &def_thread) | |
401 | return 0; | |
402 | ||
cca73aa7 JA |
403 | /* |
404 | * if we are just dumping the output command line, don't add the job | |
405 | */ | |
406 | if (dump_cmdline) { | |
407 | put_job(td); | |
408 | return 0; | |
409 | } | |
410 | ||
2dc1bbeb | 411 | engine = get_engine_name(td->o.ioengine); |
09629a90 JA |
412 | td->io_ops = load_ioengine(td, engine); |
413 | if (!td->io_ops) { | |
414 | log_err("fio: failed to load engine %s\n", engine); | |
205927a3 | 415 | goto err; |
09629a90 | 416 | } |
df64119d | 417 | |
2dc1bbeb | 418 | if (td->o.use_thread) |
9cedf167 JA |
419 | nr_thread++; |
420 | else | |
421 | nr_process++; | |
422 | ||
2dc1bbeb | 423 | if (td->o.odirect) |
690adba3 JA |
424 | td->io_ops->flags |= FIO_RAWIO; |
425 | ||
e132cbae | 426 | file_alloced = 0; |
2dc1bbeb | 427 | if (!td->o.filename && !td->files_index) { |
e132cbae | 428 | file_alloced = 1; |
80be24f4 | 429 | |
2dc1bbeb | 430 | if (td->o.nr_files == 1 && exists_and_not_file(jobname)) |
e132cbae | 431 | add_file(td, jobname); |
7b05a215 | 432 | else { |
2dc1bbeb | 433 | for (i = 0; i < td->o.nr_files; i++) { |
e132cbae | 434 | sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i); |
7b05a215 JA |
435 | add_file(td, fname); |
436 | } | |
af52b345 | 437 | } |
0af7b542 | 438 | } |
ebac4655 | 439 | |
4e991c23 JA |
440 | if (fixup_options(td)) |
441 | goto err; | |
e0a22335 | 442 | |
07eb79df JA |
443 | if (td->io_ops->flags & FIO_DISKLESSIO) { |
444 | struct fio_file *f; | |
445 | ||
446 | for_each_file(td, f, i) | |
447 | f->real_file_size = -1ULL; | |
448 | } | |
449 | ||
07739b57 | 450 | td->mutex = fio_sem_init(0); |
ebac4655 | 451 | |
756867bd JA |
452 | td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX; |
453 | td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX; | |
454 | td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX; | |
1e3d53ac | 455 | td->ddir_nr = td->o.ddir_nr; |
ebac4655 | 456 | |
b3d62a75 JA |
457 | if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group) |
458 | && prev_group_jobs) { | |
3c5df6fa | 459 | prev_group_jobs = 0; |
ebac4655 | 460 | groupid++; |
3c5df6fa | 461 | } |
ebac4655 JA |
462 | |
463 | td->groupid = groupid; | |
3c5df6fa | 464 | prev_group_jobs++; |
ebac4655 | 465 | |
9c60ce64 JA |
466 | if (init_random_state(td)) |
467 | goto err; | |
468 | ||
ebac4655 JA |
469 | if (setup_rate(td)) |
470 | goto err; | |
471 | ||
2dc1bbeb | 472 | if (td->o.write_lat_log) { |
756867bd JA |
473 | setup_log(&td->ts.slat_log); |
474 | setup_log(&td->ts.clat_log); | |
ebac4655 | 475 | } |
2dc1bbeb | 476 | if (td->o.write_bw_log) |
756867bd | 477 | setup_log(&td->ts.bw_log); |
ebac4655 | 478 | |
2dc1bbeb JA |
479 | if (!td->o.name) |
480 | td->o.name = strdup(jobname); | |
01452055 | 481 | |
c6ae0a5b | 482 | if (!terse_output) { |
b990b5c0 | 483 | if (!job_add_num) { |
ba0fbe10 | 484 | if (!strcmp(td->io_ops->name, "cpuio")) |
2dc1bbeb | 485 | log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle); |
f8977ee6 JA |
486 | else { |
487 | char *c1, *c2, *c3, *c4; | |
488 | ||
2dc1bbeb JA |
489 | c1 = to_kmg(td->o.min_bs[DDIR_READ]); |
490 | c2 = to_kmg(td->o.max_bs[DDIR_READ]); | |
491 | c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); | |
492 | c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); | |
f8977ee6 | 493 | |
2dc1bbeb | 494 | log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth); |
f8977ee6 JA |
495 | |
496 | free(c1); | |
497 | free(c2); | |
498 | free(c3); | |
499 | free(c4); | |
500 | } | |
b990b5c0 | 501 | } else if (job_add_num == 1) |
6d86144d | 502 | log_info("...\n"); |
c6ae0a5b | 503 | } |
ebac4655 JA |
504 | |
505 | /* | |
506 | * recurse add identical jobs, clear numjobs and stonewall options | |
507 | * as they don't apply to sub-jobs | |
508 | */ | |
2dc1bbeb | 509 | numjobs = td->o.numjobs; |
ebac4655 JA |
510 | while (--numjobs) { |
511 | struct thread_data *td_new = get_new_job(0, td); | |
512 | ||
513 | if (!td_new) | |
514 | goto err; | |
515 | ||
2dc1bbeb JA |
516 | td_new->o.numjobs = 1; |
517 | td_new->o.stonewall = 0; | |
92c1d41f | 518 | td_new->o.new_group = 0; |
e132cbae JA |
519 | |
520 | if (file_alloced) { | |
2dc1bbeb | 521 | td_new->o.filename = NULL; |
e132cbae JA |
522 | td_new->files_index = 0; |
523 | td_new->files = NULL; | |
524 | } | |
525 | ||
75154845 | 526 | job_add_num = numjobs - 1; |
ebac4655 | 527 | |
75154845 | 528 | if (add_job(td_new, jobname, job_add_num)) |
ebac4655 JA |
529 | goto err; |
530 | } | |
3c5df6fa | 531 | |
ebac4655 JA |
532 | return 0; |
533 | err: | |
534 | put_job(td); | |
535 | return -1; | |
536 | } | |
537 | ||
ebac4655 JA |
538 | static int is_empty_or_comment(char *line) |
539 | { | |
540 | unsigned int i; | |
541 | ||
542 | for (i = 0; i < strlen(line); i++) { | |
543 | if (line[i] == ';') | |
544 | return 1; | |
5cc2da30 IM |
545 | if (line[i] == '#') |
546 | return 1; | |
ebac4655 JA |
547 | if (!isspace(line[i]) && !iscntrl(line[i])) |
548 | return 0; | |
549 | } | |
550 | ||
551 | return 1; | |
552 | } | |
553 | ||
07261983 JA |
554 | /* |
555 | * This is our [ini] type file parser. | |
556 | */ | |
1e97cce9 | 557 | static int parse_jobs_ini(char *file, int stonewall_flag) |
ebac4655 | 558 | { |
e1f36503 | 559 | unsigned int global; |
ebac4655 | 560 | struct thread_data *td; |
fee3bb48 | 561 | char *string, *name; |
ebac4655 JA |
562 | fpos_t off; |
563 | FILE *f; | |
564 | char *p; | |
0c7e37a0 | 565 | int ret = 0, stonewall; |
097b2991 | 566 | int first_sect = 1; |
ebac4655 JA |
567 | |
568 | f = fopen(file, "r"); | |
569 | if (!f) { | |
aea47d44 | 570 | perror("fopen job file"); |
ebac4655 JA |
571 | return 1; |
572 | } | |
573 | ||
574 | string = malloc(4096); | |
7f7e6e59 JA |
575 | |
576 | /* | |
577 | * it's really 256 + small bit, 280 should suffice | |
578 | */ | |
579 | name = malloc(280); | |
580 | memset(name, 0, 280); | |
ebac4655 | 581 | |
0c7e37a0 | 582 | stonewall = stonewall_flag; |
7c124ac1 JA |
583 | do { |
584 | p = fgets(string, 4095, f); | |
585 | if (!p) | |
45410acb | 586 | break; |
cdc7f193 | 587 | |
588 | strip_blank_front(&p); | |
6c7c7da1 | 589 | strip_blank_end(p); |
cdc7f193 | 590 | |
ebac4655 JA |
591 | if (is_empty_or_comment(p)) |
592 | continue; | |
6c7c7da1 | 593 | if (sscanf(p, "[%255s]", name) != 1) { |
088b4207 JA |
594 | log_err("fio: option <%s> outside of [] job section\n", p); |
595 | break; | |
6c7c7da1 | 596 | } |
ebac4655 JA |
597 | |
598 | global = !strncmp(name, "global", 6); | |
599 | ||
600 | name[strlen(name) - 1] = '\0'; | |
601 | ||
cca73aa7 | 602 | if (dump_cmdline) { |
097b2991 JA |
603 | if (first_sect) |
604 | log_info("fio "); | |
cca73aa7 JA |
605 | if (!global) |
606 | log_info("--name=%s ", name); | |
097b2991 | 607 | first_sect = 0; |
cca73aa7 JA |
608 | } |
609 | ||
ebac4655 | 610 | td = get_new_job(global, &def_thread); |
45410acb JA |
611 | if (!td) { |
612 | ret = 1; | |
613 | break; | |
614 | } | |
ebac4655 | 615 | |
972cfd25 JA |
616 | /* |
617 | * Seperate multiple job files by a stonewall | |
618 | */ | |
f9481919 | 619 | if (!global && stonewall) { |
2dc1bbeb | 620 | td->o.stonewall = stonewall; |
972cfd25 JA |
621 | stonewall = 0; |
622 | } | |
623 | ||
ebac4655 JA |
624 | fgetpos(f, &off); |
625 | while ((p = fgets(string, 4096, f)) != NULL) { | |
626 | if (is_empty_or_comment(p)) | |
627 | continue; | |
e1f36503 | 628 | |
b6754f9d | 629 | strip_blank_front(&p); |
7c124ac1 JA |
630 | |
631 | if (p[0] == '[') | |
632 | break; | |
633 | ||
4ae3f763 | 634 | strip_blank_end(p); |
aea47d44 | 635 | |
e1f36503 | 636 | fgetpos(f, &off); |
ebac4655 | 637 | |
45410acb JA |
638 | /* |
639 | * Don't break here, continue parsing options so we | |
640 | * dump all the bad ones. Makes trial/error fixups | |
641 | * easier on the user. | |
642 | */ | |
214e1eca | 643 | ret |= fio_option_parse(td, p); |
cca73aa7 JA |
644 | if (!ret && dump_cmdline) |
645 | log_info("--%s ", p); | |
ebac4655 | 646 | } |
ebac4655 | 647 | |
45410acb JA |
648 | if (!ret) { |
649 | fsetpos(f, &off); | |
650 | ret = add_job(td, name, 0); | |
b1508cf9 JA |
651 | } else { |
652 | log_err("fio: job %s dropped\n", name); | |
653 | put_job(td); | |
45410acb | 654 | } |
7c124ac1 | 655 | } while (!ret); |
ebac4655 | 656 | |
cca73aa7 JA |
657 | if (dump_cmdline) |
658 | log_info("\n"); | |
659 | ||
ebac4655 JA |
660 | free(string); |
661 | free(name); | |
662 | fclose(f); | |
45410acb | 663 | return ret; |
ebac4655 JA |
664 | } |
665 | ||
666 | static int fill_def_thread(void) | |
667 | { | |
668 | memset(&def_thread, 0, sizeof(def_thread)); | |
669 | ||
375b2695 | 670 | fio_getaffinity(getpid(), &def_thread.o.cpumask); |
ebac4655 JA |
671 | |
672 | /* | |
ee738499 | 673 | * fill default options |
ebac4655 | 674 | */ |
214e1eca | 675 | fio_fill_default_options(&def_thread); |
ee738499 | 676 | |
2dc1bbeb JA |
677 | def_thread.o.timeout = def_timeout; |
678 | def_thread.o.write_bw_log = write_bw_log; | |
679 | def_thread.o.write_lat_log = write_lat_log; | |
ee738499 | 680 | |
ebac4655 JA |
681 | return 0; |
682 | } | |
683 | ||
214e1eca JA |
684 | static void free_shm(void) |
685 | { | |
686 | struct shmid_ds sbuf; | |
687 | ||
688 | if (threads) { | |
689 | shmdt((void *) threads); | |
690 | threads = NULL; | |
691 | shmctl(shm_id, IPC_RMID, &sbuf); | |
692 | } | |
693 | } | |
694 | ||
695 | /* | |
696 | * The thread area is shared between the main process and the job | |
697 | * threads/processes. So setup a shared memory segment that will hold | |
698 | * all the job info. | |
699 | */ | |
700 | static int setup_thread_area(void) | |
701 | { | |
702 | /* | |
703 | * 1024 is too much on some machines, scale max_jobs if | |
704 | * we get a failure that looks like too large a shm segment | |
705 | */ | |
706 | do { | |
707 | size_t size = max_jobs * sizeof(struct thread_data); | |
708 | ||
709 | shm_id = shmget(0, size, IPC_CREAT | 0600); | |
710 | if (shm_id != -1) | |
711 | break; | |
712 | if (errno != EINVAL) { | |
713 | perror("shmget"); | |
714 | break; | |
715 | } | |
716 | ||
717 | max_jobs >>= 1; | |
718 | } while (max_jobs); | |
719 | ||
720 | if (shm_id == -1) | |
721 | return 1; | |
722 | ||
723 | threads = shmat(shm_id, NULL, 0); | |
724 | if (threads == (void *) -1) { | |
725 | perror("shmat"); | |
726 | return 1; | |
727 | } | |
728 | ||
729 | atexit(free_shm); | |
730 | return 0; | |
731 | } | |
732 | ||
0ab8db89 | 733 | static void usage(void) |
4785f995 JA |
734 | { |
735 | printf("%s\n", fio_version_string); | |
b4692828 JA |
736 | printf("\t--output\tWrite output to file\n"); |
737 | printf("\t--timeout\tRuntime in seconds\n"); | |
738 | printf("\t--latency-log\tGenerate per-job latency logs\n"); | |
739 | printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n"); | |
740 | printf("\t--minimal\tMinimal (terse) output\n"); | |
741 | printf("\t--version\tPrint version info and exit\n"); | |
fd28ca49 JA |
742 | printf("\t--help\t\tPrint this page\n"); |
743 | printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n"); | |
cca73aa7 | 744 | printf("\t--showcmd\tTurn a job file into command line options\n"); |
4785f995 JA |
745 | } |
746 | ||
972cfd25 | 747 | static int parse_cmd_line(int argc, char *argv[]) |
ebac4655 | 748 | { |
b4692828 | 749 | struct thread_data *td = NULL; |
b1ec1da6 | 750 | int c, ini_idx = 0, lidx, ret, dont_add_job = 0; |
ebac4655 | 751 | |
0be06ea2 | 752 | while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) { |
ebac4655 | 753 | switch (c) { |
b4692828 JA |
754 | case 't': |
755 | def_timeout = atoi(optarg); | |
756 | break; | |
757 | case 'l': | |
758 | write_lat_log = 1; | |
759 | break; | |
760 | case 'w': | |
761 | write_bw_log = 1; | |
762 | break; | |
763 | case 'o': | |
764 | f_out = fopen(optarg, "w+"); | |
765 | if (!f_out) { | |
766 | perror("fopen output"); | |
767 | exit(1); | |
768 | } | |
769 | f_err = f_out; | |
770 | break; | |
771 | case 'm': | |
772 | terse_output = 1; | |
773 | break; | |
774 | case 'h': | |
775 | usage(); | |
776 | exit(0); | |
fd28ca49 | 777 | case 'c': |
214e1eca | 778 | exit(fio_show_option_help(optarg)); |
cca73aa7 JA |
779 | case 's': |
780 | dump_cmdline = 1; | |
781 | break; | |
724e4435 JA |
782 | case 'r': |
783 | read_only = 1; | |
784 | break; | |
b4692828 JA |
785 | case 'v': |
786 | printf("%s\n", fio_version_string); | |
787 | exit(0); | |
788 | case FIO_GETOPT_JOB: { | |
789 | const char *opt = long_options[lidx].name; | |
790 | char *val = optarg; | |
791 | ||
c2b1e753 | 792 | if (!strncmp(opt, "name", 4) && td) { |
2dc1bbeb | 793 | ret = add_job(td, td->o.name ?: "fio", 0); |
c2b1e753 JA |
794 | if (ret) { |
795 | put_job(td); | |
796 | return 0; | |
797 | } | |
798 | td = NULL; | |
799 | } | |
b4692828 | 800 | if (!td) { |
3106f220 JA |
801 | int global = 0; |
802 | ||
803 | if (strncmp(opt, "name", 4) || | |
804 | !strncmp(val, "global", 6)) | |
805 | global = 1; | |
c2b1e753 JA |
806 | |
807 | td = get_new_job(global, &def_thread); | |
b4692828 JA |
808 | if (!td) |
809 | return 0; | |
810 | } | |
38d0adb0 | 811 | |
214e1eca | 812 | ret = fio_cmd_option_parse(td, opt, val); |
78217dfa | 813 | if (ret) |
b1ec1da6 | 814 | dont_add_job = 1; |
b4692828 JA |
815 | break; |
816 | } | |
817 | default: | |
b4692828 | 818 | break; |
ebac4655 JA |
819 | } |
820 | } | |
c9fad893 | 821 | |
b4692828 | 822 | if (td) { |
b1ec1da6 | 823 | if (dont_add_job) |
b4692828 | 824 | put_job(td); |
b1ec1da6 | 825 | else { |
2dc1bbeb | 826 | ret = add_job(td, td->o.name ?: "fio", 0); |
b1ec1da6 JA |
827 | if (ret) |
828 | put_job(td); | |
829 | } | |
972cfd25 | 830 | } |
774a6177 | 831 | |
b4692828 JA |
832 | while (optind < argc) { |
833 | ini_idx++; | |
834 | ini_file = realloc(ini_file, ini_idx * sizeof(char *)); | |
835 | ini_file[ini_idx - 1] = strdup(argv[optind]); | |
836 | optind++; | |
eb8bbf48 | 837 | } |
972cfd25 JA |
838 | |
839 | return ini_idx; | |
ebac4655 JA |
840 | } |
841 | ||
b4692828 | 842 | |
ebac4655 JA |
843 | int parse_options(int argc, char *argv[]) |
844 | { | |
972cfd25 JA |
845 | int job_files, i; |
846 | ||
b4692828 JA |
847 | f_out = stdout; |
848 | f_err = stderr; | |
849 | ||
214e1eca | 850 | fio_options_dup_and_init(long_options); |
b4692828 | 851 | |
ebac4655 JA |
852 | if (setup_thread_area()) |
853 | return 1; | |
854 | if (fill_def_thread()) | |
855 | return 1; | |
856 | ||
972cfd25 | 857 | job_files = parse_cmd_line(argc, argv); |
ebac4655 | 858 | |
972cfd25 JA |
859 | for (i = 0; i < job_files; i++) { |
860 | if (fill_def_thread()) | |
861 | return 1; | |
0c7e37a0 | 862 | if (parse_jobs_ini(ini_file[i], i)) |
972cfd25 | 863 | return 1; |
88c6ed80 | 864 | free(ini_file[i]); |
972cfd25 | 865 | } |
ebac4655 | 866 | |
88c6ed80 | 867 | free(ini_file); |
d23bb327 | 868 | options_mem_free(&def_thread); |
b4692828 JA |
869 | |
870 | if (!thread_number) { | |
cca73aa7 JA |
871 | if (dump_cmdline) |
872 | return 0; | |
873 | ||
b4692828 | 874 | log_err("No jobs defined(s)\n"); |
b4692828 JA |
875 | return 1; |
876 | } | |
877 | ||
ebac4655 JA |
878 | return 0; |
879 | } |