projects / fio.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
New/old file mix fix
[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
ee738499 21#define FIO_RANDSEED (0xb1899bedUL)
ebac4655 22
e1f36503
JA		 23#define td_var_offset(var) ((size_t) &((struct thread_data *)0)->var)
24
b4692828 25static int str_mem_cb(void *, const char *);
e1f36503 26static int str_lockmem_cb(void *, unsigned long *);
34cfcdaf 27#ifdef FIO_HAVE_IOPRIO
e1f36503
JA		 28static int str_prio_cb(void *, unsigned int *);
29static int str_prioclass_cb(void *, unsigned int *);
34cfcdaf 30#endif
e1f36503
JA		 31static int str_exitall_cb(void);
32static int str_cpumask_cb(void *, unsigned int *);
1907dbc6 33static int str_fst_cb(void *, const char *);
af52b345
JA		 34static int str_filename_cb(void *, const char *);
35static int str_directory_cb(void *, const char *);
bbf6b540 36static int str_opendir_cb(void *, const char *);
e1f36503 37
ee738499
JA		 38#define __stringify_1(x) #x
39#define __stringify(x) __stringify_1(x)
40
e1f36503
JA		 41/*
42 * Map of job/command line options
43 */
44static struct fio_option options[] = {
61697c37
JA		 45 {
46 .name = "description",
47 .type = FIO_OPT_STR_STORE,
48 .off1 = td_var_offset(description),
49 .help = "Text job description",
50 },
e1f36503
JA		 51 {
52 .name = "name",
53 .type = FIO_OPT_STR_STORE,
54 .off1 = td_var_offset(name),
fd28ca49 55 .help = "Name of this job",
e1f36503
JA		 56 },
57 {
58 .name = "directory",
59 .type = FIO_OPT_STR_STORE,
60 .off1 = td_var_offset(directory),
af52b345 61 .cb = str_directory_cb,
fd28ca49 62 .help = "Directory to store files in",
e1f36503
JA		 63 },
64 {
65 .name = "filename",
66 .type = FIO_OPT_STR_STORE,
67 .off1 = td_var_offset(filename),
af52b345
JA		 68 .cb = str_filename_cb,
69 .help = "File(s) to use for the workload",
e1f36503 70 },
bbf6b540
JA		 71 {
72 .name = "opendir",
73 .type = FIO_OPT_STR_STORE,
74 .off1 = td_var_offset(opendir),
75 .cb = str_opendir_cb,
76 .help = "Recursively add files from this directory and down",
77 },
e1f36503
JA		 78 {
79 .name = "rw",
80 .type = FIO_OPT_STR,
b1ec1da6 81 .off1 = td_var_offset(td_ddir),
15f7918f 82 .help = "IO direction",
ee738499 83 .def = "read",
b1ec1da6
JA		 84 .posval = {
85 { .ival = "read", .oval = TD_DDIR_READ },
86 { .ival = "write", .oval = TD_DDIR_WRITE },
87 { .ival = "randread", .oval = TD_DDIR_RANDREAD },
88 { .ival = "randwrite", .oval = TD_DDIR_RANDWRITE },
89 { .ival = "rw", .oval = TD_DDIR_RW },
90 { .ival = "randrw", .oval = TD_DDIR_RANDRW },
91 },
e1f36503
JA		 92 },
93 {
94 .name = "ioengine",
09629a90
JA		 95 .type = FIO_OPT_STR_STORE,
96 .off1 = td_var_offset(ioengine),
15f7918f 97 .help = "IO engine to use",
ee738499 98 .def = "sync",
b1ec1da6 99 .posval = {
10cad1aa
JA		 100 { .ival = "sync", },
101#ifdef FIO_HAVE_LIBAIO
102 { .ival = "libaio", },
103#endif
104#ifdef FIO_HAVE_POSIXAIO
105 { .ival = "posixaio", },
106#endif
107 { .ival = "mmap", },
108#ifdef FIO_HAVE_SPLICE
109 { .ival = "splice", },
110#endif
111#ifdef FIO_HAVE_SGIO
112 { .ival = "sg", },
113#endif
b1ec1da6 114 { .ival = "null", }, { .ival = "net", },
10cad1aa 115#ifdef FIO_HAVE_SYSLET
b1ec1da6 116 { .ival = "syslet-rw", },
10cad1aa 117#endif
ba0fbe10 118 { .ival = "cpuio", },
7b395ca5 119 { .ival = "external", },
b1ec1da6 120 },
e1f36503 121 },
03b74b3e
JA		 122 {
123 .name = "iodepth",
124 .type = FIO_OPT_INT,
125 .off1 = td_var_offset(iodepth),
126 .help = "Amount of IO buffers to keep in flight",
127 .def = "1",
128 },
cb5ab512
JA		 129 {
130 .name = "iodepth_batch",
131 .type = FIO_OPT_INT,
132 .off1 = td_var_offset(iodepth_batch),
133 .help = "Number of IO to submit in one go",
134 },
e916b390
JA		 135 {
136 .name = "iodepth_low",
137 .type = FIO_OPT_INT,
138 .off1 = td_var_offset(iodepth_low),
139 .help = "Low water mark for queuing depth",
140 },
03b74b3e
JA		 141 {
142 .name = "size",
143 .type = FIO_OPT_STR_VAL,
144 .off1 = td_var_offset(total_file_size),
145 .help = "Size of device or file",
146 },
147 {
148 .name = "bs",
149 .type = FIO_OPT_STR_VAL_INT,
150 .off1 = td_var_offset(bs[DDIR_READ]),
151 .off2 = td_var_offset(bs[DDIR_WRITE]),
152 .help = "Block size unit",
153 .def = "4k",
154 },
155 {
156 .name = "bsrange",
157 .type = FIO_OPT_RANGE,
158 .off1 = td_var_offset(min_bs[DDIR_READ]),
159 .off2 = td_var_offset(max_bs[DDIR_READ]),
160 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
161 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
162 .help = "Set block size range (in more detail than bs)",
163 },
164 {
165 .name = "bs_unaligned",
166 .type = FIO_OPT_STR_SET,
167 .off1 = td_var_offset(bs_unaligned),
168 .help = "Don't sector align IO buffer sizes",
169 },
170 {
171 .name = "offset",
172 .type = FIO_OPT_STR_VAL,
173 .off1 = td_var_offset(start_offset),
174 .help = "Start IO from this offset",
175 .def = "0",
176 },
177 {
178 .name = "randrepeat",
179 .type = FIO_OPT_BOOL,
180 .off1 = td_var_offset(rand_repeatable),
181 .help = "Use repeatable random IO pattern",
182 .def = "1",
183 },
184 {
185 .name = "norandommap",
186 .type = FIO_OPT_STR_SET,
187 .off1 = td_var_offset(norandommap),
188 .help = "Accept potential duplicate random blocks",
189 },
190 {
191 .name = "nrfiles",
192 .type = FIO_OPT_INT,
193 .off1 = td_var_offset(nr_files),
194 .help = "Split job workload between this number of files",
195 .def = "1",
196 },
b5af8293
JA		 197 {
198 .name = "openfiles",
199 .type = FIO_OPT_INT,
200 .off1 = td_var_offset(open_files),
201 .help = "Number of files to keep open at the same time",
202 },
0aabe160
JA		 203 {
204 .name = "file_service_type",
205 .type = FIO_OPT_STR,
1907dbc6 206 .cb = str_fst_cb,
b1ec1da6 207 .off1 = td_var_offset(file_service_type),
0aabe160
JA		 208 .help = "How to select which file to service next",
209 .def = "roundrobin",
b1ec1da6
JA		 210 .posval = {
211 { .ival = "random", .oval = FIO_FSERVICE_RANDOM },
212 { .ival = "roundrobin", .oval = FIO_FSERVICE_RR },
213 },
0aabe160 214 },
03b74b3e
JA		 215 {
216 .name = "fsync",
217 .type = FIO_OPT_INT,
218 .off1 = td_var_offset(fsync_blocks),
219 .help = "Issue fsync for writes every given number of blocks",
220 .def = "0",
221 },
222 {
223 .name = "direct",
224 .type = FIO_OPT_BOOL,
225 .off1 = td_var_offset(odirect),
76a43db4
JA		 226 .help = "Use O_DIRECT IO (negates buffered)",
227 .def = "0",
228 },
229 {
230 .name = "buffered",
231 .type = FIO_OPT_BOOL,
232 .off1 = td_var_offset(odirect),
233 .neg = 1,
234 .help = "Use buffered IO (negates direct)",
03b74b3e
JA		 235 .def = "1",
236 },
237 {
238 .name = "overwrite",
239 .type = FIO_OPT_BOOL,
240 .off1 = td_var_offset(overwrite),
241 .help = "When writing, set whether to overwrite current data",
242 .def = "0",
243 },
244 {
245 .name = "loops",
246 .type = FIO_OPT_INT,
247 .off1 = td_var_offset(loops),
248 .help = "Number of times to run the job",
249 .def = "1",
250 },
251 {
252 .name = "numjobs",
253 .type = FIO_OPT_INT,
254 .off1 = td_var_offset(numjobs),
255 .help = "Duplicate this job this many times",
256 .def = "1",
257 },
258 {
259 .name = "startdelay",
260 .type = FIO_OPT_INT,
261 .off1 = td_var_offset(start_delay),
262 .help = "Only start job when this period has passed",
263 .def = "0",
264 },
265 {
266 .name = "runtime",
267 .alias = "timeout",
268 .type = FIO_OPT_STR_VAL_TIME,
269 .off1 = td_var_offset(timeout),
270 .help = "Stop workload when this amount of time has passed",
271 .def = "0",
272 },
e1f36503
JA		 273 {
274 .name = "mem",
275 .type = FIO_OPT_STR,
276 .cb = str_mem_cb,
b1ec1da6 277 .off1 = td_var_offset(mem_type),
15f7918f 278 .help = "Backing type for IO buffers",
ee738499 279 .def = "malloc",
b1ec1da6
JA		 280 .posval = {
281 { .ival = "malloc", .oval = MEM_MALLOC },
282 { .ival = "shm", .oval = MEM_SHM },
283#ifdef FIO_HAVE_HUGETLB
284 { .ival = "shmhuge", .oval = MEM_SHMHUGE },
285#endif
286 { .ival = "mmap", .oval = MEM_MMAP },
287#ifdef FIO_HAVE_HUGETLB
288 { .ival = "mmaphuge", .oval = MEM_MMAPHUGE },
289#endif
290 },
e1f36503
JA		 291 },
292 {
293 .name = "verify",
294 .type = FIO_OPT_STR,
b1ec1da6 295 .off1 = td_var_offset(verify),
15f7918f 296 .help = "Verify sum function",
ee738499 297 .def = "0",
b1ec1da6
JA		 298 .posval = {
299 { .ival = "0", .oval = VERIFY_NONE },
300 { .ival = "crc32", .oval = VERIFY_CRC32 },
301 { .ival = "md5", .oval = VERIFY_MD5 },
302 },
e1f36503
JA		 303 },
304 {
305 .name = "write_iolog",
076efc7c
JA		 306 .type = FIO_OPT_STR_STORE,
307 .off1 = td_var_offset(write_iolog_file),
fd28ca49 308 .help = "Store IO pattern to file",
e1f36503
JA		 309 },
310 {
076efc7c 311 .name = "read_iolog",
e1f36503 312 .type = FIO_OPT_STR_STORE,
076efc7c 313 .off1 = td_var_offset(read_iolog_file),
fd28ca49 314 .help = "Playback IO pattern from file",
e1f36503
JA		 315 },
316 {
317 .name = "exec_prerun",
318 .type = FIO_OPT_STR_STORE,
319 .off1 = td_var_offset(exec_prerun),
fd28ca49 320 .help = "Execute this file prior to running job",
e1f36503
JA		 321 },
322 {
323 .name = "exec_postrun",
324 .type = FIO_OPT_STR_STORE,
325 .off1 = td_var_offset(exec_postrun),
fd28ca49 326 .help = "Execute this file after running job",
e1f36503
JA		 327 },
328#ifdef FIO_HAVE_IOSCHED_SWITCH
329 {
330 .name = "ioscheduler",
331 .type = FIO_OPT_STR_STORE,
332 .off1 = td_var_offset(ioscheduler),
fd28ca49 333 .help = "Use this IO scheduler on the backing device",
e1f36503
JA		 334 },
335#endif
e1f36503
JA		 336 {
337 .name = "zonesize",
338 .type = FIO_OPT_STR_VAL,
339 .off1 = td_var_offset(zone_size),
fd28ca49 340 .help = "Give size of an IO zone",
ee738499 341 .def = "0",
e1f36503
JA		 342 },
343 {
344 .name = "zoneskip",
345 .type = FIO_OPT_STR_VAL,
346 .off1 = td_var_offset(zone_skip),
fd28ca49 347 .help = "Space between IO zones",
ee738499 348 .def = "0",
e1f36503
JA		 349 },
350 {
351 .name = "lockmem",
352 .type = FIO_OPT_STR_VAL,
353 .cb = str_lockmem_cb,
fd28ca49 354 .help = "Lock down this amount of memory",
ee738499 355 .def = "0",
e1f36503 356 },
e1f36503
JA		 357 {
358 .name = "rwmixcycle",
359 .type = FIO_OPT_INT,
360 .off1 = td_var_offset(rwmixcycle),
ee738499
JA		 361 .help = "Cycle period for mixed read/write workloads (msec)",
362 .def = "500",
e1f36503
JA		 363 },
364 {
365 .name = "rwmixread",
366 .type = FIO_OPT_INT,
367 .off1 = td_var_offset(rwmixread),
ee738499 368 .maxval = 100,
fd28ca49 369 .help = "Percentage of mixed workload that is reads",
ee738499 370 .def = "50",
e1f36503
JA		 371 },
372 {
373 .name = "rwmixwrite",
374 .type = FIO_OPT_INT,
375 .off1 = td_var_offset(rwmixwrite),
ee738499 376 .maxval = 100,
fd28ca49 377 .help = "Percentage of mixed workload that is writes",
ee738499 378 .def = "50",
e1f36503
JA		 379 },
380 {
381 .name = "nice",
382 .type = FIO_OPT_INT,
383 .off1 = td_var_offset(nice),
fd28ca49 384 .help = "Set job CPU nice value",
15f7918f 385 .minval = -19,
ee738499
JA		 386 .maxval = 20,
387 .def = "0",
e1f36503
JA		 388 },
389#ifdef FIO_HAVE_IOPRIO
390 {
391 .name = "prio",
392 .type = FIO_OPT_INT,
393 .cb = str_prio_cb,
fd28ca49 394 .help = "Set job IO priority value",
15f7918f
JA		 395 .minval = 0,
396 .maxval = 7,
e1f36503
JA		 397 },
398 {
399 .name = "prioclass",
400 .type = FIO_OPT_INT,
401 .cb = str_prioclass_cb,
fd28ca49 402 .help = "Set job IO priority class",
15f7918f
JA		 403 .minval = 0,
404 .maxval = 3,
e1f36503
JA		 405 },
406#endif
407 {
408 .name = "thinktime",
409 .type = FIO_OPT_INT,
1304923a 410 .off1 = td_var_offset(thinktime),
5fa0f817 411 .help = "Idle time between IO buffers (usec)",
ee738499 412 .def = "0",
e1f36503 413 },
48097d5c
JA		 414 {
415 .name = "thinktime_spin",
416 .type = FIO_OPT_INT,
417 .off1 = td_var_offset(thinktime_spin),
34403fb1 418 .help = "Start think time by spinning this amount (usec)",
48097d5c
JA		 419 .def = "0",
420 },
9c1f7434
JA		 421 {
422 .name = "thinktime_blocks",
423 .type = FIO_OPT_INT,
1304923a 424 .off1 = td_var_offset(thinktime_blocks),
fd28ca49 425 .help = "IO buffer period between 'thinktime'",
ee738499 426 .def = "1",
9c1f7434 427 },
e1f36503
JA		 428 {
429 .name = "rate",
430 .type = FIO_OPT_INT,
1304923a 431 .off1 = td_var_offset(rate),
fd28ca49 432 .help = "Set bandwidth rate",
e1f36503
JA		 433 },
434 {
435 .name = "ratemin",
436 .type = FIO_OPT_INT,
1304923a 437 .off1 = td_var_offset(ratemin),
fd28ca49 438 .help = "The bottom limit accepted",
e1f36503
JA		 439 },
440 {
441 .name = "ratecycle",
442 .type = FIO_OPT_INT,
1304923a 443 .off1 = td_var_offset(ratecycle),
6da1fa7f 444 .help = "Window average for rate limits (msec)",
ee738499 445 .def = "1000",
e1f36503 446 },
e1f36503
JA		 447 {
448 .name = "invalidate",
13335ddb 449 .type = FIO_OPT_BOOL,
1304923a 450 .off1 = td_var_offset(invalidate_cache),
fd28ca49 451 .help = "Invalidate buffer/page cache prior to running job",
ee738499 452 .def = "1",
e1f36503
JA		 453 },
454 {
455 .name = "sync",
13335ddb 456 .type = FIO_OPT_BOOL,
1304923a 457 .off1 = td_var_offset(sync_io),
fd28ca49 458 .help = "Use O_SYNC for buffered writes",
ee738499 459 .def = "0",
e1f36503
JA		 460 },
461 {
462 .name = "bwavgtime",
463 .type = FIO_OPT_INT,
1304923a 464 .off1 = td_var_offset(bw_avg_time),
ee738499
JA		 465 .help = "Time window over which to calculate bandwidth (msec)",
466 .def = "500",
e1f36503
JA		 467 },
468 {
469 .name = "create_serialize",
13335ddb 470 .type = FIO_OPT_BOOL,
1304923a 471 .off1 = td_var_offset(create_serialize),
fd28ca49 472 .help = "Serialize creating of job files",
ee738499 473 .def = "1",
e1f36503
JA		 474 },
475 {
476 .name = "create_fsync",
13335ddb 477 .type = FIO_OPT_BOOL,
1304923a 478 .off1 = td_var_offset(create_fsync),
fd28ca49 479 .help = "Fsync file after creation",
ee738499 480 .def = "1",
e1f36503 481 },
e1f36503
JA		 482 {
483 .name = "cpuload",
484 .type = FIO_OPT_INT,
1304923a 485 .off1 = td_var_offset(cpuload),
fd28ca49 486 .help = "Use this percentage of CPU",
e1f36503
JA		 487 },
488 {
489 .name = "cpuchunks",
490 .type = FIO_OPT_INT,
1304923a 491 .off1 = td_var_offset(cpucycle),
ba0fbe10
JA		 492 .help = "Length of the CPU burn cycles (usecs)",
493 .def = "50000",
e1f36503 494 },
e1f36503
JA		 495#ifdef FIO_HAVE_CPU_AFFINITY
496 {
497 .name = "cpumask",
498 .type = FIO_OPT_INT,
499 .cb = str_cpumask_cb,
fd28ca49 500 .help = "CPU affinity mask",
e1f36503
JA		 501 },
502#endif
503 {
504 .name = "end_fsync",
13335ddb 505 .type = FIO_OPT_BOOL,
1304923a 506 .off1 = td_var_offset(end_fsync),
fd28ca49 507 .help = "Include fsync at the end of job",
ee738499 508 .def = "0",
e1f36503 509 },
ebb1415f
JA		 510 {
511 .name = "fsync_on_close",
512 .type = FIO_OPT_BOOL,
513 .off1 = td_var_offset(fsync_on_close),
514 .help = "fsync files on close",
515 .def = "0",
516 },
e1f36503
JA		 517 {
518 .name = "unlink",
13335ddb 519 .type = FIO_OPT_BOOL,
e1f36503 520 .off1 = td_var_offset(unlink),
ee738499 521 .help = "Unlink created files after job has completed",
e545a6ce 522 .def = "0",
e1f36503
JA		 523 },
524 {
525 .name = "exitall",
526 .type = FIO_OPT_STR_SET,
527 .cb = str_exitall_cb,
fd28ca49 528 .help = "Terminate all jobs when one exits",
e1f36503
JA		 529 },
530 {
531 .name = "stonewall",
532 .type = FIO_OPT_STR_SET,
533 .off1 = td_var_offset(stonewall),
fd28ca49 534 .help = "Insert a hard barrier between this job and previous",
e1f36503
JA		 535 },
536 {
537 .name = "thread",
538 .type = FIO_OPT_STR_SET,
d9bb3b80 539 .off1 = td_var_offset(use_thread),
fd28ca49 540 .help = "Use threads instead of forks",
e1f36503
JA		 541 },
542 {
543 .name = "write_bw_log",
544 .type = FIO_OPT_STR_SET,
545 .off1 = td_var_offset(write_bw_log),
fd28ca49 546 .help = "Write log of bandwidth during run",
e1f36503
JA		 547 },
548 {
549 .name = "write_lat_log",
550 .type = FIO_OPT_STR_SET,
551 .off1 = td_var_offset(write_lat_log),
fd28ca49 552 .help = "Write log of latency during run",
e1f36503 553 },
56bb17f2
JA		 554 {
555 .name = "hugepage-size",
556 .type = FIO_OPT_STR_VAL,
557 .off1 = td_var_offset(hugepage_size),
fd28ca49 558 .help = "When using hugepages, specify size of each page",
ee738499 559 .def = __stringify(FIO_HUGE_PAGE),
56bb17f2 560 },
b2560f3c
JA		 561 {
562 .name = "group_reporting",
563 .type = FIO_OPT_STR_SET,
564 .off1 = td_var_offset(group_reporting),
565 .help = "Do reporting on a per-group basis",
566 },
e1f36503
JA		 567 {
568 .name = NULL,
569 },
570};
571
b4692828
JA		 572#define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
573#define FIO_CMD_OPTS (16)
574#define FIO_GETOPT_JOB (0x89988998)
575
576/*
577 * Command line options. These will contain the above, plus a few
578 * extra that only pertain to fio itself and not jobs.
579 */
580static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
581 {
582 .name = "output",
583 .has_arg = required_argument,
584 .val = 'o',
585 },
586 {
587 .name = "timeout",
588 .has_arg = required_argument,
589 .val = 't',
590 },
591 {
592 .name = "latency-log",
593 .has_arg = required_argument,
594 .val = 'l',
595 },
596 {
597 .name = "bandwidth-log",
598 .has_arg = required_argument,
599 .val = 'b',
600 },
601 {
602 .name = "minimal",
603 .has_arg = optional_argument,
604 .val = 'm',
605 },
606 {
607 .name = "version",
608 .has_arg = no_argument,
609 .val = 'v',
610 },
fd28ca49
JA		 611 {
612 .name = "help",
613 .has_arg = no_argument,
614 .val = 'h',
615 },
616 {
617 .name = "cmdhelp",
320beefe 618 .has_arg = optional_argument,
fd28ca49
JA		 619 .val = 'c',
620 },
b4692828
JA		 621 {
622 .name = NULL,
623 },
624};
625
ee738499 626static int def_timeout = 0;
972cfd25 627
fdf3de27 628static char fio_version_string[] = "fio 1.13";
ebac4655 629
972cfd25 630static char **ini_file;
ebac4655
JA		 631static int max_jobs = MAX_JOBS;
632
633struct thread_data def_thread;
634struct thread_data *threads = NULL;
635
ebac4655 636int exitall_on_terminate = 0;
c6ae0a5b 637int terse_output = 0;
c04f7ec3 638unsigned long long mlock_size = 0;
eb8bbf48
JA		 639FILE *f_out = NULL;
640FILE *f_err = NULL;
ebac4655 641
ee738499 642static int write_lat_log = 0;
bb3884d8 643int write_bw_log = 0;
ec94ec56 644
3c5df6fa
JA		 645static int prev_group_jobs;
646
9728ce37
JB		 647FILE *get_f_out()
648{
649 return f_out;
650}
651
652FILE *get_f_err()
653{
654 return f_err;
655}
656
906c8d75
JA		 657/*
658 * Return a free job structure.
659 */
ebac4655
JA		 660static struct thread_data *get_new_job(int global, struct thread_data *parent)
661{
662 struct thread_data *td;
663
664 if (global)
665 return &def_thread;
666 if (thread_number >= max_jobs)
667 return NULL;
668
669 td = &threads[thread_number++];
ddaeaa5a 670 *td = *parent;
ebac4655 671
ebac4655 672 td->thread_number = thread_number;
ebac4655
JA		 673 return td;
674}
675
676static void put_job(struct thread_data *td)
677{
549577a7
JA		 678 if (td == &def_thread)
679 return;
680
16edf25d
JA		 681 if (td->error)
682 fprintf(f_out, "fio: %s\n", td->verror);
683
ebac4655
JA		 684 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
685 thread_number--;
686}
687
dad915e3
JA		 688/*
689 * Lazy way of fixing up options that depend on each other. We could also
690 * define option callback handlers, but this is easier.
691 */
e1f36503
JA		 692static void fixup_options(struct thread_data *td)
693{
e1f36503
JA		 694 if (!td->rwmixread && td->rwmixwrite)
695 td->rwmixread = 100 - td->rwmixwrite;
dad915e3 696
076efc7c
JA		 697 if (td->write_iolog_file && td->read_iolog_file) {
698 log_err("fio: read iolog overrides write_iolog\n");
699 free(td->write_iolog_file);
700 td->write_iolog_file = NULL;
701 }
16b462ae
JA		 702
703 if (td->io_ops->flags & FIO_SYNCIO)
704 td->iodepth = 1;
705 else {
706 if (!td->iodepth)
b5af8293 707 td->iodepth = td->open_files;
16b462ae
JA		 708 }
709
710 /*
711 * only really works for sequential io for now, and with 1 file
712 */
b5af8293 713 if (td->zone_size && td_random(td) && td->open_files == 1)
16b462ae
JA		 714 td->zone_size = 0;
715
716 /*
717 * Reads can do overwrites, we always need to pre-create the file
718 */
719 if (td_read(td) || td_rw(td))
720 td->overwrite = 1;
721
a00735e6
JA		 722 if (!td->min_bs[DDIR_READ])
723 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
724 if (!td->max_bs[DDIR_READ])
725 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
726 if (!td->min_bs[DDIR_WRITE])
75e6f36f 727 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
a00735e6 728 if (!td->max_bs[DDIR_WRITE])
75e6f36f 729 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
a00735e6
JA		 730
731 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
732
16b462ae
JA		 733 if (td_read(td) && !td_rw(td))
734 td->verify = 0;
bb8895e0
JA		 735
736 if (td->norandommap && td->verify != VERIFY_NONE) {
737 log_err("fio: norandommap given, verify disabled\n");
738 td->verify = VERIFY_NONE;
739 }
690adba3
JA		 740 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
741 log_err("fio: bs_unaligned may not work with raw io\n");
e0a22335 742
48097d5c
JA		 743 /*
744 * thinktime_spin must be less than thinktime
745 */
746 if (td->thinktime_spin > td->thinktime)
747 td->thinktime_spin = td->thinktime;
e916b390
JA		 748
749 /*
750 * The low water mark cannot be bigger than the iodepth
751 */
9467b77c
JA		 752 if (td->iodepth_low > td->iodepth || !td->iodepth_low) {
753 /*
754 * syslet work around - if the workload is sequential,
755 * we want to let the queue drain all the way down to
756 * avoid seeking between async threads
757 */
758 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
759 td->iodepth_low = 1;
760 else
761 td->iodepth_low = td->iodepth;
762 }
cb5ab512
JA		 763
764 /*
765 * If batch number isn't set, default to the same as iodepth
766 */
767 if (td->iodepth_batch > td->iodepth || !td->iodepth_batch)
768 td->iodepth_batch = td->iodepth;
b5af8293 769
bbf6b540 770 if (td->nr_files > td->files_index)
9f9214f2
JA		 771 td->nr_files = td->files_index;
772
773 if (td->open_files > td->nr_files || !td->open_files)
b5af8293 774 td->open_files = td->nr_files;
e1f36503
JA		 775}
776
f8977ee6
JA		 777/*
778 * This function leaks the buffer
779 */
780static char *to_kmg(unsigned int val)
781{
782 char *buf = malloc(32);
f3502ba2 783 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
f8977ee6
JA		 784 char *p = post;
785
245142ff 786 do {
f8977ee6
JA		 787 if (val & 1023)
788 break;
789
790 val >>= 10;
791 p++;
245142ff 792 } while (*p);
f8977ee6
JA		 793
794 snprintf(buf, 31, "%u%c", val, *p);
795 return buf;
796}
797
09629a90
JA		 798/* External engines are specified by "external:name.o") */
799static const char *get_engine_name(const char *str)
800{
801 char *p = strstr(str, ":");
802
803 if (!p)
804 return str;
805
806 p++;
807 strip_blank_front(&p);
808 strip_blank_end(p);
809 return p;
810}
811
906c8d75
JA		 812/*
813 * Adds a job to the list of things todo. Sanitizes the various options
814 * to make sure we don't have conflicts, and initializes various
815 * members of td.
816 */
75154845 817static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 818{
413dd459
JA		 819 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
820 "randread", "randwrite", "randrw" };
af52b345 821 unsigned int i;
53cdc686 822 struct fio_file *f;
09629a90 823 const char *engine;
af52b345
JA		 824 char fname[PATH_MAX];
825 int numjobs;
ebac4655 826
ebac4655
JA		 827 /*
828 * the def_thread is just for options, it's not a real job
829 */
830 if (td == &def_thread)
831 return 0;
832
09629a90
JA		 833 engine = get_engine_name(td->ioengine);
834 td->io_ops = load_ioengine(td, engine);
835 if (!td->io_ops) {
836 log_err("fio: failed to load engine %s\n", engine);
837 return 1;
838 }
df64119d 839
9cedf167
JA		 840 if (td->use_thread)
841 nr_thread++;
842 else
843 nr_process++;
844
690adba3
JA		 845 if (td->odirect)
846 td->io_ops->flags |= FIO_RAWIO;
847
bbf6b540 848 if (!td->filename && !td->files_index) {
80be24f4
JA		 849 td->filename = strdup(jobname);
850
7b05a215
JA		 851 if (td->nr_files == 1)
852 add_file(td, td->filename);
853 else {
854 for (i = 0; i < td->nr_files; i++) {
855 sprintf(fname, "%s.%d.%d", td->filename, td->thread_number, i);
856 add_file(td, fname);
857 }
af52b345 858 }
0af7b542 859 }
ebac4655 860
e0a22335
JA		 861 fixup_options(td);
862
af52b345
JA		 863 for_each_file(td, f, i) {
864 if (td->directory && f->filetype == FIO_TYPE_FILE) {
865 sprintf(fname, "%s/%s", td->directory, f->file_name);
866 f->file_name = strdup(fname);
53cdc686 867 }
53cdc686
JA		 868 }
869
07739b57 870 td->mutex = fio_sem_init(0);
ebac4655 871
756867bd
JA		 872 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
873 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
874 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
ebac4655 875
3c5df6fa
JA		 876 if ((td->stonewall || td->numjobs > 1) && prev_group_jobs) {
877 prev_group_jobs = 0;
ebac4655 878 groupid++;
3c5df6fa 879 }
ebac4655
JA		 880
881 td->groupid = groupid;
3c5df6fa 882 prev_group_jobs++;
ebac4655
JA		 883
884 if (setup_rate(td))
885 goto err;
886
ec94ec56 887 if (td->write_lat_log) {
756867bd
JA		 888 setup_log(&td->ts.slat_log);
889 setup_log(&td->ts.clat_log);
ebac4655 890 }
ec94ec56 891 if (td->write_bw_log)
756867bd 892 setup_log(&td->ts.bw_log);
ebac4655 893
b4692828
JA		 894 if (!td->name)
895 td->name = strdup(jobname);
01452055 896
c6ae0a5b 897 if (!terse_output) {
b990b5c0 898 if (!job_add_num) {
ba0fbe10 899 if (!strcmp(td->io_ops->name, "cpuio"))
b990b5c0 900 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
f8977ee6
JA		 901 else {
902 char *c1, *c2, *c3, *c4;
903
904 c1 = to_kmg(td->min_bs[DDIR_READ]);
905 c2 = to_kmg(td->max_bs[DDIR_READ]);
906 c3 = to_kmg(td->min_bs[DDIR_WRITE]);
907 c4 = to_kmg(td->max_bs[DDIR_WRITE]);
908
413dd459 909 fprintf(f_out, "%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->name, td->groupid, ddir_str[td->td_ddir], c1, c2, c3, c4, td->io_ops->name, td->iodepth);
f8977ee6
JA		 910
911 free(c1);
912 free(c2);
913 free(c3);
914 free(c4);
915 }
b990b5c0 916 } else if (job_add_num == 1)
c6ae0a5b
JA		 917 fprintf(f_out, "...\n");
918 }
ebac4655
JA		 919
920 /*
921 * recurse add identical jobs, clear numjobs and stonewall options
922 * as they don't apply to sub-jobs
923 */
924 numjobs = td->numjobs;
925 while (--numjobs) {
926 struct thread_data *td_new = get_new_job(0, td);
927
928 if (!td_new)
929 goto err;
930
931 td_new->numjobs = 1;
932 td_new->stonewall = 0;
75154845 933 job_add_num = numjobs - 1;
ebac4655 934
75154845 935 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA		 936 goto err;
937 }
3c5df6fa
JA		 938
939 if (td->numjobs > 1) {
940 groupid++;
941 prev_group_jobs = 0;
942 }
943
ebac4655
JA		 944 return 0;
945err:
946 put_job(td);
947 return -1;
948}
949
906c8d75
JA		 950/*
951 * Initialize the various random states we need (random io, block size ranges,
952 * read/write mix, etc).
953 */
ebac4655
JA		 954int init_random_state(struct thread_data *td)
955{
0aabe160 956 unsigned long seeds[5];
af52b345 957 int fd, num_maps, blocks;
0ab8db89 958 struct fio_file *f;
af52b345 959 unsigned int i;
ebac4655 960
ba0fbe10 961 if (td->io_ops->flags & FIO_DISKLESSIO)
f48b467c
JA		 962 return 0;
963
1ac267bb 964 fd = open("/dev/urandom", O_RDONLY);
ebac4655 965 if (fd == -1) {
e1161c32 966 td_verror(td, errno, "open");
ebac4655
JA		 967 return 1;
968 }
969
a6ccc7be 970 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
e1161c32 971 td_verror(td, EIO, "read");
ebac4655
JA		 972 close(fd);
973 return 1;
974 }
975
976 close(fd);
977
6dfd46b9
JA		 978 os_random_seed(seeds[0], &td->bsrange_state);
979 os_random_seed(seeds[1], &td->verify_state);
980 os_random_seed(seeds[2], &td->rwmix_state);
ebac4655 981
413dd459
JA		 982 if (td->file_service_type == FIO_FSERVICE_RANDOM)
983 os_random_seed(seeds[3], &td->next_file_state);
984
985 if (!td_random(td))
ebac4655
JA		 986 return 0;
987
9ebc27e1 988 if (td->rand_repeatable)
0aabe160 989 seeds[4] = FIO_RANDSEED * td->thread_number;
ebac4655 990
bb8895e0
JA		 991 if (!td->norandommap) {
992 for_each_file(td, f, i) {
a4a81712 993 blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
c7c280ed 994 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
bb8895e0 995 f->file_map = malloc(num_maps * sizeof(long));
bda4fd9e
JA		 996 if (!f->file_map) {
997 log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
998 return 1;
999 }
bb8895e0
JA		 1000 f->num_maps = num_maps;
1001 memset(f->file_map, 0, num_maps * sizeof(long));
1002 }
53cdc686 1003 }
ebac4655 1004
0aabe160 1005 os_random_seed(seeds[4], &td->random_state);
ebac4655
JA		 1006 return 0;
1007}
1008
1009static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
1010{
1011#ifdef FIO_HAVE_CPU_AFFINITY
1012 unsigned int i;
1013
1014 CPU_ZERO(&cpumask);
1015
1016 for (i = 0; i < sizeof(int) * 8; i++) {
1017 if ((1 << i) & cpu)
1018 CPU_SET(i, &cpumask);
1019 }
1020#endif
1021}
1022
ebac4655
JA		 1023static int is_empty_or_comment(char *line)
1024{
1025 unsigned int i;
1026
1027 for (i = 0; i < strlen(line); i++) {
1028 if (line[i] == ';')
1029 return 1;
5cc2da30
IM		 1030 if (line[i] == '#')
1031 return 1;
ebac4655
JA		 1032 if (!isspace(line[i]) && !iscntrl(line[i]))
1033 return 0;
1034 }
1035
1036 return 1;
1037}
1038
313cb206
JA		 1039/*
1040 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
1041 */
1907dbc6 1042static char *get_opt_postfix(const char *str)
313cb206
JA		 1043{
1044 char *p = strstr(str, ":");
1045
1046 if (!p)
1047 return NULL;
1048
1049 p++;
1050 strip_blank_front(&p);
1051 strip_blank_end(p);
1052 return strdup(p);
1053}
1054
b4692828 1055static int str_mem_cb(void *data, const char *mem)
ebac4655 1056{
cb2c86fd
JA		 1057 struct thread_data *td = data;
1058
b1ec1da6 1059 if (td->mem_type == MEM_MMAPHUGE || td->mem_type == MEM_MMAP) {
1907dbc6 1060 td->mmapfile = get_opt_postfix(mem);
b1ec1da6 1061 if (td->mem_type == MEM_MMAPHUGE && !td->mmapfile) {
d0bdaf49
JA		 1062 log_err("fio: mmaphuge:/path/to/file\n");
1063 return 1;
1064 }
ebac4655
JA		 1065 }
1066
b1ec1da6 1067 return 0;
ebac4655
JA		 1068}
1069
e1f36503
JA		 1070static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
1071{
1072 mlock_size = *val;
1073 return 0;
1074}
1075
34cfcdaf 1076#ifdef FIO_HAVE_IOPRIO
e1f36503
JA		 1077static int str_prioclass_cb(void *data, unsigned int *val)
1078{
1079 struct thread_data *td = data;
1080
1081 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
1082 return 0;
1083}
1084
1085static int str_prio_cb(void *data, unsigned int *val)
1086{
1087 struct thread_data *td = data;
1088
1089 td->ioprio |= *val;
1090 return 0;
1091}
34cfcdaf 1092#endif
e1f36503
JA		 1093
1094static int str_exitall_cb(void)
1095{
1096 exitall_on_terminate = 1;
1097 return 0;
1098}
1099
1100static int str_cpumask_cb(void *data, unsigned int *val)
1101{
1102 struct thread_data *td = data;
1103
1104 fill_cpu_mask(td->cpumask, *val);
1105 return 0;
1106}
1107
1907dbc6
JA		 1108static int str_fst_cb(void *data, const char *str)
1109{
1110 struct thread_data *td = data;
1111 char *nr = get_opt_postfix(str);
1112
1113 td->file_service_nr = 1;
1114 if (nr)
1115 td->file_service_nr = atoi(nr);
1116
1117 return 0;
1118}
1119
af52b345
JA		 1120static int str_filename_cb(void *data, const char *input)
1121{
1122 struct thread_data *td = data;
cae61953 1123 char *fname, *str, *p;
af52b345 1124
cae61953 1125 p = str = strdup(input);
e13363eb
JA		 1126
1127 strip_blank_front(&str);
1128 strip_blank_end(str);
1129
bbf6b540
JA		 1130 if (!td->files_index)
1131 td->nr_files = 0;
1132
0ad920e7 1133 while ((fname = strsep(&str, ":")) != NULL) {
e13363eb
JA		 1134 if (!strlen(fname))
1135 break;
af52b345 1136 add_file(td, fname);
bbf6b540 1137 td->nr_files++;
0ad920e7 1138 }
af52b345 1139
cae61953 1140 free(p);
af52b345
JA		 1141 return 0;
1142}
1143
1144static int str_directory_cb(void *data, const char fio_unused *str)
1145{
1146 struct thread_data *td = data;
1147 struct stat sb;
1148
1149 if (lstat(td->directory, &sb) < 0) {
1150 log_err("fio: %s is not a directory\n", td->directory);
1151 td_verror(td, errno, "lstat");
1152 return 1;
1153 }
1154 if (!S_ISDIR(sb.st_mode)) {
1155 log_err("fio: %s is not a directory\n", td->directory);
1156 return 1;
1157 }
1158
1159 return 0;
1160}
1161
bbf6b540
JA		 1162static int str_opendir_cb(void *data, const char fio_unused *str)
1163{
1164 struct thread_data *td = data;
1165
1166 if (!td->files_index)
1167 td->nr_files = 0;
1168
1169 return add_dir_files(td, td->opendir);
1170}
1171
07261983
JA		 1172/*
1173 * This is our [ini] type file parser.
1174 */
1e97cce9 1175static int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 1176{
e1f36503 1177 unsigned int global;
ebac4655 1178 struct thread_data *td;
fee3bb48 1179 char *string, *name;
ebac4655
JA		 1180 fpos_t off;
1181 FILE *f;
1182 char *p;
0c7e37a0 1183 int ret = 0, stonewall;
ebac4655
JA		 1184
1185 f = fopen(file, "r");
1186 if (!f) {
aea47d44 1187 perror("fopen job file");
ebac4655
JA		 1188 return 1;
1189 }
1190
1191 string = malloc(4096);
1192 name = malloc(256);
fee3bb48 1193 memset(name, 0, 256);
ebac4655 1194
0c7e37a0 1195 stonewall = stonewall_flag;
7c124ac1
JA		 1196 do {
1197 p = fgets(string, 4095, f);
1198 if (!p)
45410acb 1199 break;
ebac4655
JA		 1200 if (is_empty_or_comment(p))
1201 continue;
fee3bb48 1202 if (sscanf(p, "[%255s]", name) != 1)
ebac4655
JA		 1203 continue;
1204
1205 global = !strncmp(name, "global", 6);
1206
1207 name[strlen(name) - 1] = '\0';
1208
1209 td = get_new_job(global, &def_thread);
45410acb
JA		 1210 if (!td) {
1211 ret = 1;
1212 break;
1213 }
ebac4655 1214
972cfd25
JA		 1215 /*
1216 * Seperate multiple job files by a stonewall
1217 */
f9481919 1218 if (!global && stonewall) {
972cfd25
JA		 1219 td->stonewall = stonewall;
1220 stonewall = 0;
1221 }
1222
ebac4655
JA		 1223 fgetpos(f, &off);
1224 while ((p = fgets(string, 4096, f)) != NULL) {
1225 if (is_empty_or_comment(p))
1226 continue;
e1f36503 1227
b6754f9d 1228 strip_blank_front(&p);
7c124ac1
JA		 1229
1230 if (p[0] == '[')
1231 break;
1232
4ae3f763 1233 strip_blank_end(p);
aea47d44 1234
e1f36503 1235 fgetpos(f, &off);
ebac4655 1236
45410acb
JA		 1237 /*
1238 * Don't break here, continue parsing options so we
1239 * dump all the bad ones. Makes trial/error fixups
1240 * easier on the user.
1241 */
7c124ac1 1242 ret |= parse_option(p, options, td);
ebac4655 1243 }
ebac4655 1244
45410acb
JA		 1245 if (!ret) {
1246 fsetpos(f, &off);
1247 ret = add_job(td, name, 0);
b1508cf9
JA		 1248 } else {
1249 log_err("fio: job %s dropped\n", name);
1250 put_job(td);
45410acb 1251 }
7c124ac1 1252 } while (!ret);
ebac4655
JA		 1253
1254 free(string);
1255 free(name);
1256 fclose(f);
45410acb 1257 return ret;
ebac4655
JA		 1258}
1259
1260static int fill_def_thread(void)
1261{
1262 memset(&def_thread, 0, sizeof(def_thread));
1263
1264 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1265 perror("sched_getaffinity");
1266 return 1;
1267 }
1268
1269 /*
ee738499 1270 * fill default options
ebac4655 1271 */
ee738499
JA		 1272 fill_default_options(&def_thread, options);
1273
972cfd25 1274 def_thread.timeout = def_timeout;
ec94ec56
JA		 1275 def_thread.write_bw_log = write_bw_log;
1276 def_thread.write_lat_log = write_lat_log;
ee738499 1277
ebac4655
JA		 1278#ifdef FIO_HAVE_DISK_UTIL
1279 def_thread.do_disk_util = 1;
1280#endif
1281
1282 return 0;
1283}
1284
0ab8db89 1285static void usage(void)
4785f995
JA		 1286{
1287 printf("%s\n", fio_version_string);
b4692828
JA		 1288 printf("\t--output\tWrite output to file\n");
1289 printf("\t--timeout\tRuntime in seconds\n");
1290 printf("\t--latency-log\tGenerate per-job latency logs\n");
1291 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1292 printf("\t--minimal\tMinimal (terse) output\n");
1293 printf("\t--version\tPrint version info and exit\n");
fd28ca49
JA		 1294 printf("\t--help\t\tPrint this page\n");
1295 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
4785f995
JA		 1296}
1297
972cfd25 1298static int parse_cmd_line(int argc, char *argv[])
ebac4655 1299{
b4692828 1300 struct thread_data *td = NULL;
b1ec1da6 1301 int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
ebac4655 1302
0be06ea2 1303 while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
ebac4655 1304 switch (c) {
b4692828
JA		 1305 case 't':
1306 def_timeout = atoi(optarg);
1307 break;
1308 case 'l':
1309 write_lat_log = 1;
1310 break;
1311 case 'w':
1312 write_bw_log = 1;
1313 break;
1314 case 'o':
1315 f_out = fopen(optarg, "w+");
1316 if (!f_out) {
1317 perror("fopen output");
1318 exit(1);
1319 }
1320 f_err = f_out;
1321 break;
1322 case 'm':
1323 terse_output = 1;
1324 break;
1325 case 'h':
1326 usage();
1327 exit(0);
fd28ca49 1328 case 'c':
29fc6afe
JA		 1329 ret = show_cmd_help(options, optarg);
1330 exit(ret);
b4692828
JA		 1331 case 'v':
1332 printf("%s\n", fio_version_string);
1333 exit(0);
1334 case FIO_GETOPT_JOB: {
1335 const char *opt = long_options[lidx].name;
1336 char *val = optarg;
1337
c2b1e753
JA		 1338 if (!strncmp(opt, "name", 4) && td) {
1339 ret = add_job(td, td->name ?: "fio", 0);
1340 if (ret) {
1341 put_job(td);
1342 return 0;
1343 }
1344 td = NULL;
1345 }
b4692828 1346 if (!td) {
38d0adb0 1347 int global = !strncmp(val, "global", 6);
c2b1e753
JA		 1348
1349 td = get_new_job(global, &def_thread);
b4692828
JA		 1350 if (!td)
1351 return 0;
1352 }
38d0adb0 1353
b1508cf9 1354 ret = parse_cmd_option(opt, val, options, td);
78217dfa 1355 if (ret)
b1ec1da6 1356 dont_add_job = 1;
b4692828
JA		 1357 break;
1358 }
1359 default:
b4692828 1360 break;
ebac4655
JA		 1361 }
1362 }
c9fad893 1363
b4692828 1364 if (td) {
b1ec1da6 1365 if (dont_add_job)
b4692828 1366 put_job(td);
b1ec1da6
JA		 1367 else {
1368 ret = add_job(td, td->name ?: "fio", 0);
1369 if (ret)
1370 put_job(td);
1371 }
972cfd25 1372 }
774a6177 1373
b4692828
JA		 1374 while (optind < argc) {
1375 ini_idx++;
1376 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1377 ini_file[ini_idx - 1] = strdup(argv[optind]);
1378 optind++;
eb8bbf48 1379 }
972cfd25
JA		 1380
1381 return ini_idx;
ebac4655
JA		 1382}
1383
1384static void free_shm(void)
1385{
1386 struct shmid_ds sbuf;
1387
1388 if (threads) {
2c0ecd28 1389 shmdt((void *) threads);
ebac4655
JA		 1390 threads = NULL;
1391 shmctl(shm_id, IPC_RMID, &sbuf);
1392 }
1393}
1394
906c8d75
JA		 1395/*
1396 * The thread area is shared between the main process and the job
1397 * threads/processes. So setup a shared memory segment that will hold
1398 * all the job info.
1399 */
ebac4655
JA		 1400static int setup_thread_area(void)
1401{
1402 /*
1403 * 1024 is too much on some machines, scale max_jobs if
1404 * we get a failure that looks like too large a shm segment
1405 */
1406 do {
906c8d75 1407 size_t size = max_jobs * sizeof(struct thread_data);
ebac4655 1408
906c8d75 1409 shm_id = shmget(0, size, IPC_CREAT | 0600);
ebac4655
JA		 1410 if (shm_id != -1)
1411 break;
1412 if (errno != EINVAL) {
1413 perror("shmget");
1414 break;
1415 }
1416
1417 max_jobs >>= 1;
1418 } while (max_jobs);
1419
1420 if (shm_id == -1)
1421 return 1;
1422
1423 threads = shmat(shm_id, NULL, 0);
1424 if (threads == (void *) -1) {
1425 perror("shmat");
1426 return 1;
1427 }
1428
1429 atexit(free_shm);
1430 return 0;
1431}
1432
b4692828
JA		 1433/*
1434 * Copy the fio options into the long options map, so we mirror
1435 * job and cmd line options.
1436 */
1437static void dupe_job_options(void)
1438{
1439 struct fio_option *o;
1440 unsigned int i;
1441
1442 i = 0;
1443 while (long_options[i].name)
1444 i++;
1445
1446 o = &options[0];
1447 while (o->name) {
1448 long_options[i].name = o->name;
1449 long_options[i].val = FIO_GETOPT_JOB;
1450 if (o->type == FIO_OPT_STR_SET)
1451 long_options[i].has_arg = no_argument;
1452 else
1453 long_options[i].has_arg = required_argument;
1454
1455 i++;
1456 o++;
1457 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1458 }
1459}
1460
ebac4655
JA		 1461int parse_options(int argc, char *argv[])
1462{
972cfd25
JA		 1463 int job_files, i;
1464
b4692828
JA		 1465 f_out = stdout;
1466 f_err = stderr;
1467
13335ddb
JA		 1468 options_init(options);
1469
b4692828
JA		 1470 dupe_job_options();
1471
ebac4655
JA		 1472 if (setup_thread_area())
1473 return 1;
1474 if (fill_def_thread())
1475 return 1;
1476
972cfd25 1477 job_files = parse_cmd_line(argc, argv);
ebac4655 1478
972cfd25
JA		 1479 for (i = 0; i < job_files; i++) {
1480 if (fill_def_thread())
1481 return 1;
0c7e37a0 1482 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1483 return 1;
88c6ed80 1484 free(ini_file[i]);
972cfd25 1485 }
ebac4655 1486
88c6ed80 1487 free(ini_file);
b4692828
JA		 1488
1489 if (!thread_number) {
1490 log_err("No jobs defined(s)\n");
b4692828
JA		 1491 return 1;
1492 }
1493
ebac4655
JA		 1494 return 0;
1495}
fio - Flexible IO Tester