Makefile: libdir is not used anymore
[fio.git] / init.c
CommitLineData
906c8d75 1/*
cb2c86fd 2 * This file contains job initialization and setup functions.
906c8d75 3 */
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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>
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11#include <getopt.h>
12#include <assert.h>
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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
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23#define td_var_offset(var) ((size_t) &((struct thread_data *)0)->var)
24
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25static int str_rw_cb(void *, const char *);
26static int str_ioengine_cb(void *, const char *);
27static int str_mem_cb(void *, const char *);
28static int str_verify_cb(void *, const char *);
e1f36503 29static int str_lockmem_cb(void *, unsigned long *);
34cfcdaf 30#ifdef FIO_HAVE_IOPRIO
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31static int str_prio_cb(void *, unsigned int *);
32static int str_prioclass_cb(void *, unsigned int *);
34cfcdaf 33#endif
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34static int str_exitall_cb(void);
35static int str_cpumask_cb(void *, unsigned int *);
36
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37#define __stringify_1(x) #x
38#define __stringify(x) __stringify_1(x)
39
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40/*
41 * Map of job/command line options
42 */
43static struct fio_option options[] = {
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44 {
45 .name = "description",
46 .type = FIO_OPT_STR_STORE,
47 .off1 = td_var_offset(description),
48 .help = "Text job description",
49 },
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50 {
51 .name = "name",
52 .type = FIO_OPT_STR_STORE,
53 .off1 = td_var_offset(name),
fd28ca49 54 .help = "Name of this job",
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55 },
56 {
57 .name = "directory",
58 .type = FIO_OPT_STR_STORE,
59 .off1 = td_var_offset(directory),
fd28ca49 60 .help = "Directory to store files in",
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61 },
62 {
63 .name = "filename",
64 .type = FIO_OPT_STR_STORE,
65 .off1 = td_var_offset(filename),
fd28ca49 66 .help = "Force the use of a specific file",
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67 },
68 {
69 .name = "rw",
70 .type = FIO_OPT_STR,
71 .cb = str_rw_cb,
15f7918f 72 .help = "IO direction",
ee738499 73 .def = "read",
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74 .posval = { "read", "write", "randwrite", "randread", "rw",
75 "randrw", },
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76 },
77 {
78 .name = "ioengine",
79 .type = FIO_OPT_STR,
80 .cb = str_ioengine_cb,
15f7918f 81 .help = "IO engine to use",
ee738499 82 .def = "sync",
15f7918f 83 .posval = { "sync", "libaio", "posixaio", "mmap", "splice",
a4f4fdd7 84 "sg", "null", "net", "syslet-rw" },
e1f36503 85 },
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86 {
87 .name = "iodepth",
88 .type = FIO_OPT_INT,
89 .off1 = td_var_offset(iodepth),
90 .help = "Amount of IO buffers to keep in flight",
91 .def = "1",
92 },
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93 {
94 .name = "iodepth_low",
95 .type = FIO_OPT_INT,
96 .off1 = td_var_offset(iodepth_low),
97 .help = "Low water mark for queuing depth",
98 },
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99 {
100 .name = "size",
101 .type = FIO_OPT_STR_VAL,
102 .off1 = td_var_offset(total_file_size),
103 .help = "Size of device or file",
104 },
105 {
106 .name = "bs",
107 .type = FIO_OPT_STR_VAL_INT,
108 .off1 = td_var_offset(bs[DDIR_READ]),
109 .off2 = td_var_offset(bs[DDIR_WRITE]),
110 .help = "Block size unit",
111 .def = "4k",
112 },
113 {
114 .name = "bsrange",
115 .type = FIO_OPT_RANGE,
116 .off1 = td_var_offset(min_bs[DDIR_READ]),
117 .off2 = td_var_offset(max_bs[DDIR_READ]),
118 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
119 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
120 .help = "Set block size range (in more detail than bs)",
121 },
122 {
123 .name = "bs_unaligned",
124 .type = FIO_OPT_STR_SET,
125 .off1 = td_var_offset(bs_unaligned),
126 .help = "Don't sector align IO buffer sizes",
127 },
128 {
129 .name = "offset",
130 .type = FIO_OPT_STR_VAL,
131 .off1 = td_var_offset(start_offset),
132 .help = "Start IO from this offset",
133 .def = "0",
134 },
135 {
136 .name = "randrepeat",
137 .type = FIO_OPT_BOOL,
138 .off1 = td_var_offset(rand_repeatable),
139 .help = "Use repeatable random IO pattern",
140 .def = "1",
141 },
142 {
143 .name = "norandommap",
144 .type = FIO_OPT_STR_SET,
145 .off1 = td_var_offset(norandommap),
146 .help = "Accept potential duplicate random blocks",
147 },
148 {
149 .name = "nrfiles",
150 .type = FIO_OPT_INT,
151 .off1 = td_var_offset(nr_files),
152 .help = "Split job workload between this number of files",
153 .def = "1",
154 },
155 {
156 .name = "fsync",
157 .type = FIO_OPT_INT,
158 .off1 = td_var_offset(fsync_blocks),
159 .help = "Issue fsync for writes every given number of blocks",
160 .def = "0",
161 },
162 {
163 .name = "direct",
164 .type = FIO_OPT_BOOL,
165 .off1 = td_var_offset(odirect),
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166 .help = "Use O_DIRECT IO (negates buffered)",
167 .def = "0",
168 },
169 {
170 .name = "buffered",
171 .type = FIO_OPT_BOOL,
172 .off1 = td_var_offset(odirect),
173 .neg = 1,
174 .help = "Use buffered IO (negates direct)",
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175 .def = "1",
176 },
177 {
178 .name = "overwrite",
179 .type = FIO_OPT_BOOL,
180 .off1 = td_var_offset(overwrite),
181 .help = "When writing, set whether to overwrite current data",
182 .def = "0",
183 },
184 {
185 .name = "loops",
186 .type = FIO_OPT_INT,
187 .off1 = td_var_offset(loops),
188 .help = "Number of times to run the job",
189 .def = "1",
190 },
191 {
192 .name = "numjobs",
193 .type = FIO_OPT_INT,
194 .off1 = td_var_offset(numjobs),
195 .help = "Duplicate this job this many times",
196 .def = "1",
197 },
198 {
199 .name = "startdelay",
200 .type = FIO_OPT_INT,
201 .off1 = td_var_offset(start_delay),
202 .help = "Only start job when this period has passed",
203 .def = "0",
204 },
205 {
206 .name = "runtime",
207 .alias = "timeout",
208 .type = FIO_OPT_STR_VAL_TIME,
209 .off1 = td_var_offset(timeout),
210 .help = "Stop workload when this amount of time has passed",
211 .def = "0",
212 },
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213 {
214 .name = "mem",
215 .type = FIO_OPT_STR,
216 .cb = str_mem_cb,
15f7918f 217 .help = "Backing type for IO buffers",
ee738499 218 .def = "malloc",
15f7918f 219 .posval = { "malloc", "shm", "shmhuge", "mmap", "mmaphuge", },
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220 },
221 {
222 .name = "verify",
223 .type = FIO_OPT_STR,
224 .cb = str_verify_cb,
15f7918f 225 .help = "Verify sum function",
ee738499 226 .def = "0",
15f7918f 227 .posval = { "crc32", "md5", },
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228 },
229 {
230 .name = "write_iolog",
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231 .type = FIO_OPT_STR_STORE,
232 .off1 = td_var_offset(write_iolog_file),
fd28ca49 233 .help = "Store IO pattern to file",
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234 },
235 {
076efc7c 236 .name = "read_iolog",
e1f36503 237 .type = FIO_OPT_STR_STORE,
076efc7c 238 .off1 = td_var_offset(read_iolog_file),
fd28ca49 239 .help = "Playback IO pattern from file",
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240 },
241 {
242 .name = "exec_prerun",
243 .type = FIO_OPT_STR_STORE,
244 .off1 = td_var_offset(exec_prerun),
fd28ca49 245 .help = "Execute this file prior to running job",
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246 },
247 {
248 .name = "exec_postrun",
249 .type = FIO_OPT_STR_STORE,
250 .off1 = td_var_offset(exec_postrun),
fd28ca49 251 .help = "Execute this file after running job",
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252 },
253#ifdef FIO_HAVE_IOSCHED_SWITCH
254 {
255 .name = "ioscheduler",
256 .type = FIO_OPT_STR_STORE,
257 .off1 = td_var_offset(ioscheduler),
fd28ca49 258 .help = "Use this IO scheduler on the backing device",
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259 },
260#endif
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261 {
262 .name = "zonesize",
263 .type = FIO_OPT_STR_VAL,
264 .off1 = td_var_offset(zone_size),
fd28ca49 265 .help = "Give size of an IO zone",
ee738499 266 .def = "0",
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267 },
268 {
269 .name = "zoneskip",
270 .type = FIO_OPT_STR_VAL,
271 .off1 = td_var_offset(zone_skip),
fd28ca49 272 .help = "Space between IO zones",
ee738499 273 .def = "0",
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274 },
275 {
276 .name = "lockmem",
277 .type = FIO_OPT_STR_VAL,
278 .cb = str_lockmem_cb,
fd28ca49 279 .help = "Lock down this amount of memory",
ee738499 280 .def = "0",
e1f36503 281 },
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282 {
283 .name = "rwmixcycle",
284 .type = FIO_OPT_INT,
285 .off1 = td_var_offset(rwmixcycle),
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286 .help = "Cycle period for mixed read/write workloads (msec)",
287 .def = "500",
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288 },
289 {
290 .name = "rwmixread",
291 .type = FIO_OPT_INT,
292 .off1 = td_var_offset(rwmixread),
ee738499 293 .maxval = 100,
fd28ca49 294 .help = "Percentage of mixed workload that is reads",
ee738499 295 .def = "50",
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296 },
297 {
298 .name = "rwmixwrite",
299 .type = FIO_OPT_INT,
300 .off1 = td_var_offset(rwmixwrite),
ee738499 301 .maxval = 100,
fd28ca49 302 .help = "Percentage of mixed workload that is writes",
ee738499 303 .def = "50",
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304 },
305 {
306 .name = "nice",
307 .type = FIO_OPT_INT,
308 .off1 = td_var_offset(nice),
fd28ca49 309 .help = "Set job CPU nice value",
15f7918f 310 .minval = -19,
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311 .maxval = 20,
312 .def = "0",
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313 },
314#ifdef FIO_HAVE_IOPRIO
315 {
316 .name = "prio",
317 .type = FIO_OPT_INT,
318 .cb = str_prio_cb,
fd28ca49 319 .help = "Set job IO priority value",
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320 .minval = 0,
321 .maxval = 7,
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322 },
323 {
324 .name = "prioclass",
325 .type = FIO_OPT_INT,
326 .cb = str_prioclass_cb,
fd28ca49 327 .help = "Set job IO priority class",
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328 .minval = 0,
329 .maxval = 3,
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330 },
331#endif
332 {
333 .name = "thinktime",
334 .type = FIO_OPT_INT,
1304923a 335 .off1 = td_var_offset(thinktime),
5fa0f817 336 .help = "Idle time between IO buffers (usec)",
ee738499 337 .def = "0",
e1f36503 338 },
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339 {
340 .name = "thinktime_spin",
341 .type = FIO_OPT_INT,
342 .off1 = td_var_offset(thinktime_spin),
343 .help = "Start thinktime by spinning this amount (usec)",
344 .def = "0",
345 },
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346 {
347 .name = "thinktime_blocks",
348 .type = FIO_OPT_INT,
1304923a 349 .off1 = td_var_offset(thinktime_blocks),
fd28ca49 350 .help = "IO buffer period between 'thinktime'",
ee738499 351 .def = "1",
9c1f7434 352 },
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353 {
354 .name = "rate",
355 .type = FIO_OPT_INT,
1304923a 356 .off1 = td_var_offset(rate),
fd28ca49 357 .help = "Set bandwidth rate",
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358 },
359 {
360 .name = "ratemin",
361 .type = FIO_OPT_INT,
1304923a 362 .off1 = td_var_offset(ratemin),
fd28ca49 363 .help = "The bottom limit accepted",
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364 },
365 {
366 .name = "ratecycle",
367 .type = FIO_OPT_INT,
1304923a 368 .off1 = td_var_offset(ratecycle),
6da1fa7f 369 .help = "Window average for rate limits (msec)",
ee738499 370 .def = "1000",
e1f36503 371 },
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372 {
373 .name = "invalidate",
13335ddb 374 .type = FIO_OPT_BOOL,
1304923a 375 .off1 = td_var_offset(invalidate_cache),
fd28ca49 376 .help = "Invalidate buffer/page cache prior to running job",
ee738499 377 .def = "1",
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378 },
379 {
380 .name = "sync",
13335ddb 381 .type = FIO_OPT_BOOL,
1304923a 382 .off1 = td_var_offset(sync_io),
fd28ca49 383 .help = "Use O_SYNC for buffered writes",
ee738499 384 .def = "0",
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385 },
386 {
387 .name = "bwavgtime",
388 .type = FIO_OPT_INT,
1304923a 389 .off1 = td_var_offset(bw_avg_time),
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390 .help = "Time window over which to calculate bandwidth (msec)",
391 .def = "500",
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392 },
393 {
394 .name = "create_serialize",
13335ddb 395 .type = FIO_OPT_BOOL,
1304923a 396 .off1 = td_var_offset(create_serialize),
fd28ca49 397 .help = "Serialize creating of job files",
ee738499 398 .def = "1",
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399 },
400 {
401 .name = "create_fsync",
13335ddb 402 .type = FIO_OPT_BOOL,
1304923a 403 .off1 = td_var_offset(create_fsync),
fd28ca49 404 .help = "Fsync file after creation",
ee738499 405 .def = "1",
e1f36503 406 },
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407 {
408 .name = "cpuload",
409 .type = FIO_OPT_INT,
1304923a 410 .off1 = td_var_offset(cpuload),
fd28ca49 411 .help = "Use this percentage of CPU",
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412 },
413 {
414 .name = "cpuchunks",
415 .type = FIO_OPT_INT,
1304923a 416 .off1 = td_var_offset(cpucycle),
fd28ca49 417 .help = "Length of the CPU burn cycles",
e1f36503 418 },
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419#ifdef FIO_HAVE_CPU_AFFINITY
420 {
421 .name = "cpumask",
422 .type = FIO_OPT_INT,
423 .cb = str_cpumask_cb,
fd28ca49 424 .help = "CPU affinity mask",
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425 },
426#endif
427 {
428 .name = "end_fsync",
13335ddb 429 .type = FIO_OPT_BOOL,
1304923a 430 .off1 = td_var_offset(end_fsync),
fd28ca49 431 .help = "Include fsync at the end of job",
ee738499 432 .def = "0",
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433 },
434 {
435 .name = "unlink",
13335ddb 436 .type = FIO_OPT_BOOL,
e1f36503 437 .off1 = td_var_offset(unlink),
ee738499 438 .help = "Unlink created files after job has completed",
e545a6ce 439 .def = "0",
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440 },
441 {
442 .name = "exitall",
443 .type = FIO_OPT_STR_SET,
444 .cb = str_exitall_cb,
fd28ca49 445 .help = "Terminate all jobs when one exits",
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446 },
447 {
448 .name = "stonewall",
449 .type = FIO_OPT_STR_SET,
450 .off1 = td_var_offset(stonewall),
fd28ca49 451 .help = "Insert a hard barrier between this job and previous",
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452 },
453 {
454 .name = "thread",
455 .type = FIO_OPT_STR_SET,
d9bb3b80 456 .off1 = td_var_offset(use_thread),
fd28ca49 457 .help = "Use threads instead of forks",
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458 },
459 {
460 .name = "write_bw_log",
461 .type = FIO_OPT_STR_SET,
462 .off1 = td_var_offset(write_bw_log),
fd28ca49 463 .help = "Write log of bandwidth during run",
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464 },
465 {
466 .name = "write_lat_log",
467 .type = FIO_OPT_STR_SET,
468 .off1 = td_var_offset(write_lat_log),
fd28ca49 469 .help = "Write log of latency during run",
e1f36503 470 },
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471 {
472 .name = "hugepage-size",
473 .type = FIO_OPT_STR_VAL,
474 .off1 = td_var_offset(hugepage_size),
fd28ca49 475 .help = "When using hugepages, specify size of each page",
ee738499 476 .def = __stringify(FIO_HUGE_PAGE),
56bb17f2 477 },
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478 {
479 .name = NULL,
480 },
481};
482
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483#define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
484#define FIO_CMD_OPTS (16)
485#define FIO_GETOPT_JOB (0x89988998)
486
487/*
488 * Command line options. These will contain the above, plus a few
489 * extra that only pertain to fio itself and not jobs.
490 */
491static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
492 {
493 .name = "output",
494 .has_arg = required_argument,
495 .val = 'o',
496 },
497 {
498 .name = "timeout",
499 .has_arg = required_argument,
500 .val = 't',
501 },
502 {
503 .name = "latency-log",
504 .has_arg = required_argument,
505 .val = 'l',
506 },
507 {
508 .name = "bandwidth-log",
509 .has_arg = required_argument,
510 .val = 'b',
511 },
512 {
513 .name = "minimal",
514 .has_arg = optional_argument,
515 .val = 'm',
516 },
517 {
518 .name = "version",
519 .has_arg = no_argument,
520 .val = 'v',
521 },
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522 {
523 .name = "help",
524 .has_arg = no_argument,
525 .val = 'h',
526 },
527 {
528 .name = "cmdhelp",
529 .has_arg = required_argument,
530 .val = 'c',
531 },
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532 {
533 .name = NULL,
534 },
535};
536
ee738499 537static int def_timeout = 0;
972cfd25 538
5cd033bb 539static char fio_version_string[] = "fio 1.11";
ebac4655 540
972cfd25 541static char **ini_file;
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542static int max_jobs = MAX_JOBS;
543
544struct thread_data def_thread;
545struct thread_data *threads = NULL;
546
ebac4655 547int exitall_on_terminate = 0;
c6ae0a5b 548int terse_output = 0;
c04f7ec3 549unsigned long long mlock_size = 0;
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550FILE *f_out = NULL;
551FILE *f_err = NULL;
ebac4655 552
ee738499 553static int write_lat_log = 0;
bb3884d8 554int write_bw_log = 0;
ec94ec56 555
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556/*
557 * Return a free job structure.
558 */
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559static struct thread_data *get_new_job(int global, struct thread_data *parent)
560{
561 struct thread_data *td;
562
563 if (global)
564 return &def_thread;
565 if (thread_number >= max_jobs)
566 return NULL;
567
568 td = &threads[thread_number++];
ddaeaa5a 569 *td = *parent;
ebac4655 570
ebac4655 571 td->thread_number = thread_number;
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572 return td;
573}
574
575static void put_job(struct thread_data *td)
576{
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577 if (td == &def_thread)
578 return;
579
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580 if (td->error)
581 fprintf(f_out, "fio: %s\n", td->verror);
582
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583 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
584 thread_number--;
585}
586
dad915e3
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587/*
588 * Lazy way of fixing up options that depend on each other. We could also
589 * define option callback handlers, but this is easier.
590 */
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591static void fixup_options(struct thread_data *td)
592{
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593 if (!td->rwmixread && td->rwmixwrite)
594 td->rwmixread = 100 - td->rwmixwrite;
dad915e3 595
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596 if (td->write_iolog_file && td->read_iolog_file) {
597 log_err("fio: read iolog overrides write_iolog\n");
598 free(td->write_iolog_file);
599 td->write_iolog_file = NULL;
600 }
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601
602 if (td->io_ops->flags & FIO_SYNCIO)
603 td->iodepth = 1;
604 else {
605 if (!td->iodepth)
606 td->iodepth = td->nr_files;
607 }
608
609 /*
610 * only really works for sequential io for now, and with 1 file
611 */
612 if (td->zone_size && !td->sequential && td->nr_files == 1)
613 td->zone_size = 0;
614
615 /*
616 * Reads can do overwrites, we always need to pre-create the file
617 */
618 if (td_read(td) || td_rw(td))
619 td->overwrite = 1;
620
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621 if (!td->min_bs[DDIR_READ])
622 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
623 if (!td->max_bs[DDIR_READ])
624 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
625 if (!td->min_bs[DDIR_WRITE])
75e6f36f 626 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
a00735e6 627 if (!td->max_bs[DDIR_WRITE])
75e6f36f 628 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
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629
630 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
631
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632 if (td_read(td) && !td_rw(td))
633 td->verify = 0;
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634
635 if (td->norandommap && td->verify != VERIFY_NONE) {
636 log_err("fio: norandommap given, verify disabled\n");
637 td->verify = VERIFY_NONE;
638 }
690adba3
JA
639 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
640 log_err("fio: bs_unaligned may not work with raw io\n");
e0a22335
JA
641
642 /*
643 * O_DIRECT and char doesn't mix, clear that flag if necessary.
644 */
645 if (td->filetype == FIO_TYPE_CHAR && td->odirect)
646 td->odirect = 0;
48097d5c
JA
647
648 /*
649 * thinktime_spin must be less than thinktime
650 */
651 if (td->thinktime_spin > td->thinktime)
652 td->thinktime_spin = td->thinktime;
e916b390
JA
653
654 /*
655 * The low water mark cannot be bigger than the iodepth
656 */
657 if (td->iodepth_low > td->iodepth || !td->iodepth_low)
658 td->iodepth_low = td->iodepth;
e1f36503
JA
659}
660
f8977ee6
JA
661/*
662 * This function leaks the buffer
663 */
664static char *to_kmg(unsigned int val)
665{
666 char *buf = malloc(32);
f3502ba2 667 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
f8977ee6
JA
668 char *p = post;
669
245142ff 670 do {
f8977ee6
JA
671 if (val & 1023)
672 break;
673
674 val >>= 10;
675 p++;
245142ff 676 } while (*p);
f8977ee6
JA
677
678 snprintf(buf, 31, "%u%c", val, *p);
679 return buf;
680}
681
906c8d75
JA
682/*
683 * Adds a job to the list of things todo. Sanitizes the various options
684 * to make sure we don't have conflicts, and initializes various
685 * members of td.
686 */
75154845 687static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 688{
3c9b60c1
JA
689 const char *ddir_str[] = { "read", "write", "randread", "randwrite",
690 "rw", NULL, "randrw" };
ebac4655 691 struct stat sb;
53cdc686
JA
692 int numjobs, ddir, i;
693 struct fio_file *f;
ebac4655 694
ebac4655
JA
695 /*
696 * the def_thread is just for options, it's not a real job
697 */
698 if (td == &def_thread)
699 return 0;
700
ee738499 701 assert(td->io_ops);
df64119d 702
690adba3
JA
703 if (td->odirect)
704 td->io_ops->flags |= FIO_RAWIO;
705
ebac4655 706 td->filetype = FIO_TYPE_FILE;
890df538 707 if (td->filename && !lstat(td->filename, &sb)) {
0af7b542
JA
708 if (S_ISBLK(sb.st_mode))
709 td->filetype = FIO_TYPE_BD;
710 else if (S_ISCHR(sb.st_mode))
711 td->filetype = FIO_TYPE_CHAR;
712 }
ebac4655 713
e0a22335
JA
714 fixup_options(td);
715
13f8e2d2
JA
716 if (td->filename)
717 td->nr_uniq_files = 1;
718 else
719 td->nr_uniq_files = td->nr_files;
720
721 if (td->filetype == FIO_TYPE_FILE || td->filename) {
e9c047a0 722 char tmp[PATH_MAX];
53cdc686 723 int len = 0;
e9c047a0 724
16edf25d
JA
725 if (td->directory && td->directory[0] != '\0') {
726 if (lstat(td->directory, &sb) < 0) {
727 log_err("fio: %s is not a directory\n", td->directory);
728 td_verror(td, errno);
729 return 1;
730 }
731 if (!S_ISDIR(sb.st_mode)) {
732 log_err("fio: %s is not a directory\n", td->directory);
733 return 1;
734 }
8aeebd55 735 len = sprintf(tmp, "%s/", td->directory);
16edf25d 736 }
ebac4655 737
53cdc686
JA
738 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
739
740 for_each_file(td, f, i) {
741 memset(f, 0, sizeof(*f));
742 f->fd = -1;
743
13f8e2d2
JA
744 if (td->filename)
745 sprintf(tmp + len, "%s", td->filename);
746 else
747 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
53cdc686
JA
748 f->file_name = strdup(tmp);
749 }
750 } else {
751 td->nr_files = 1;
752 td->files = malloc(sizeof(struct fio_file));
753 f = &td->files[0];
754
755 memset(f, 0, sizeof(*f));
756 f->fd = -1;
757 f->file_name = strdup(jobname);
758 }
759
760 for_each_file(td, f, i) {
761 f->file_size = td->total_file_size / td->nr_files;
762 f->file_offset = td->start_offset;
763 }
764
bbfd6b00 765 fio_sem_init(&td->mutex, 0);
ebac4655 766
079ad09b
JA
767 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
768 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
769 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
ebac4655 770
ebac4655
JA
771 if (td->stonewall && td->thread_number > 1)
772 groupid++;
773
774 td->groupid = groupid;
775
776 if (setup_rate(td))
777 goto err;
778
ec94ec56 779 if (td->write_lat_log) {
079ad09b
JA
780 setup_log(&td->ts.slat_log);
781 setup_log(&td->ts.clat_log);
ebac4655 782 }
ec94ec56 783 if (td->write_bw_log)
079ad09b 784 setup_log(&td->ts.bw_log);
ebac4655 785
b4692828
JA
786 if (!td->name)
787 td->name = strdup(jobname);
01452055 788
3d60d1ed 789 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
75154845 790
c6ae0a5b 791 if (!terse_output) {
b990b5c0 792 if (!job_add_num) {
2866c82d 793 if (td->io_ops->flags & FIO_CPUIO)
b990b5c0 794 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
f8977ee6
JA
795 else {
796 char *c1, *c2, *c3, *c4;
797
798 c1 = to_kmg(td->min_bs[DDIR_READ]);
799 c2 = to_kmg(td->max_bs[DDIR_READ]);
800 c3 = to_kmg(td->min_bs[DDIR_WRITE]);
801 c4 = to_kmg(td->max_bs[DDIR_WRITE]);
802
d56cbab0 803 fprintf(f_out, "%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->name, td->groupid, ddir_str[ddir], c1, c2, c3, c4, td->io_ops->name, td->iodepth);
f8977ee6
JA
804
805 free(c1);
806 free(c2);
807 free(c3);
808 free(c4);
809 }
b990b5c0 810 } else if (job_add_num == 1)
c6ae0a5b
JA
811 fprintf(f_out, "...\n");
812 }
ebac4655
JA
813
814 /*
815 * recurse add identical jobs, clear numjobs and stonewall options
816 * as they don't apply to sub-jobs
817 */
818 numjobs = td->numjobs;
819 while (--numjobs) {
820 struct thread_data *td_new = get_new_job(0, td);
821
822 if (!td_new)
823 goto err;
824
825 td_new->numjobs = 1;
826 td_new->stonewall = 0;
75154845 827 job_add_num = numjobs - 1;
ebac4655 828
75154845 829 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA
830 goto err;
831 }
832 return 0;
833err:
834 put_job(td);
835 return -1;
836}
837
906c8d75
JA
838/*
839 * Initialize the various random states we need (random io, block size ranges,
840 * read/write mix, etc).
841 */
ebac4655
JA
842int init_random_state(struct thread_data *td)
843{
a6ccc7be 844 unsigned long seeds[4];
53cdc686 845 int fd, num_maps, blocks, i;
0ab8db89 846 struct fio_file *f;
ebac4655 847
f48b467c
JA
848 if (td->io_ops->flags & FIO_CPUIO)
849 return 0;
850
1ac267bb 851 fd = open("/dev/urandom", O_RDONLY);
ebac4655
JA
852 if (fd == -1) {
853 td_verror(td, errno);
854 return 1;
855 }
856
a6ccc7be 857 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
ebac4655
JA
858 td_verror(td, EIO);
859 close(fd);
860 return 1;
861 }
862
863 close(fd);
864
6dfd46b9
JA
865 os_random_seed(seeds[0], &td->bsrange_state);
866 os_random_seed(seeds[1], &td->verify_state);
867 os_random_seed(seeds[2], &td->rwmix_state);
ebac4655
JA
868
869 if (td->sequential)
870 return 0;
871
9ebc27e1 872 if (td->rand_repeatable)
2f073b09 873 seeds[3] = FIO_RANDSEED * td->thread_number;
ebac4655 874
bb8895e0
JA
875 if (!td->norandommap) {
876 for_each_file(td, f, i) {
a4a81712 877 blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
c7c280ed 878 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
bb8895e0
JA
879 f->file_map = malloc(num_maps * sizeof(long));
880 f->num_maps = num_maps;
881 memset(f->file_map, 0, num_maps * sizeof(long));
882 }
53cdc686 883 }
ebac4655 884
6dfd46b9 885 os_random_seed(seeds[3], &td->random_state);
ebac4655
JA
886 return 0;
887}
888
889static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
890{
891#ifdef FIO_HAVE_CPU_AFFINITY
892 unsigned int i;
893
894 CPU_ZERO(&cpumask);
895
896 for (i = 0; i < sizeof(int) * 8; i++) {
897 if ((1 << i) & cpu)
898 CPU_SET(i, &cpumask);
899 }
900#endif
901}
902
ebac4655
JA
903static int is_empty_or_comment(char *line)
904{
905 unsigned int i;
906
907 for (i = 0; i < strlen(line); i++) {
908 if (line[i] == ';')
909 return 1;
5cc2da30
IM
910 if (line[i] == '#')
911 return 1;
ebac4655
JA
912 if (!isspace(line[i]) && !iscntrl(line[i]))
913 return 0;
914 }
915
916 return 1;
917}
918
b4692828 919static int str_rw_cb(void *data, const char *mem)
ebac4655 920{
cb2c86fd
JA
921 struct thread_data *td = data;
922
ebac4655
JA
923 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
924 td->ddir = DDIR_READ;
925 td->sequential = 1;
926 return 0;
927 } else if (!strncmp(mem, "randread", 8)) {
928 td->ddir = DDIR_READ;
929 td->sequential = 0;
930 return 0;
931 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
932 td->ddir = DDIR_WRITE;
933 td->sequential = 1;
934 return 0;
935 } else if (!strncmp(mem, "randwrite", 9)) {
936 td->ddir = DDIR_WRITE;
937 td->sequential = 0;
938 return 0;
3d60d1ed 939 } else if (!strncmp(mem, "rw", 2)) {
1e97cce9 940 td->ddir = DDIR_READ;
3d60d1ed
JA
941 td->iomix = 1;
942 td->sequential = 1;
943 return 0;
944 } else if (!strncmp(mem, "randrw", 6)) {
1e97cce9 945 td->ddir = DDIR_READ;
3d60d1ed
JA
946 td->iomix = 1;
947 td->sequential = 0;
948 return 0;
ebac4655
JA
949 }
950
3b70d7e5 951 log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
ebac4655
JA
952 return 1;
953}
954
b4692828 955static int str_verify_cb(void *data, const char *mem)
ebac4655 956{
cb2c86fd
JA
957 struct thread_data *td = data;
958
ebac4655
JA
959 if (!strncmp(mem, "0", 1)) {
960 td->verify = VERIFY_NONE;
961 return 0;
962 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
963 td->verify = VERIFY_MD5;
964 return 0;
965 } else if (!strncmp(mem, "crc32", 5)) {
966 td->verify = VERIFY_CRC32;
967 return 0;
968 }
969
3b70d7e5 970 log_err("fio: verify types: md5, crc32\n");
ebac4655
JA
971 return 1;
972}
973
313cb206
JA
974/*
975 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
976 */
977static char *get_mmap_file(const char *str)
978{
979 char *p = strstr(str, ":");
980
981 if (!p)
982 return NULL;
983
984 p++;
985 strip_blank_front(&p);
986 strip_blank_end(p);
987 return strdup(p);
988}
989
b4692828 990static int str_mem_cb(void *data, const char *mem)
ebac4655 991{
cb2c86fd
JA
992 struct thread_data *td = data;
993
ebac4655
JA
994 if (!strncmp(mem, "malloc", 6)) {
995 td->mem_type = MEM_MALLOC;
996 return 0;
d0bdaf49
JA
997 } else if (!strncmp(mem, "mmaphuge", 8)) {
998#ifdef FIO_HAVE_HUGETLB
d0bdaf49
JA
999 /*
1000 * mmaphuge must be appended with the actual file
1001 */
313cb206
JA
1002 td->mmapfile = get_mmap_file(mem);
1003 if (!td->mmapfile) {
d0bdaf49
JA
1004 log_err("fio: mmaphuge:/path/to/file\n");
1005 return 1;
1006 }
1007
d0bdaf49
JA
1008 td->mem_type = MEM_MMAPHUGE;
1009 return 0;
1010#else
1011 log_err("fio: mmaphuge not available\n");
1012 return 1;
1013#endif
ebac4655 1014 } else if (!strncmp(mem, "mmap", 4)) {
313cb206
JA
1015 /*
1016 * Check if the user wants file backed memory. It's ok
1017 * if there's no file given, we'll just use anon mamp then.
1018 */
1019 td->mmapfile = get_mmap_file(mem);
ebac4655
JA
1020 td->mem_type = MEM_MMAP;
1021 return 0;
74b025b0
JA
1022 } else if (!strncmp(mem, "shmhuge", 7)) {
1023#ifdef FIO_HAVE_HUGETLB
1024 td->mem_type = MEM_SHMHUGE;
1025 return 0;
1026#else
1027 log_err("fio: shmhuge not available\n");
1028 return 1;
1029#endif
0268b8ba
JA
1030 } else if (!strncmp(mem, "shm", 3)) {
1031 td->mem_type = MEM_SHM;
1032 return 0;
ebac4655
JA
1033 }
1034
d0bdaf49 1035 log_err("fio: mem type: malloc, shm, shmhuge, mmap, mmaphuge\n");
ebac4655
JA
1036 return 1;
1037}
1038
b4692828 1039static int str_ioengine_cb(void *data, const char *str)
ebac4655 1040{
cb2c86fd
JA
1041 struct thread_data *td = data;
1042
2866c82d
JA
1043 td->io_ops = load_ioengine(td, str);
1044 if (td->io_ops)
b990b5c0 1045 return 0;
ebac4655 1046
08aae9a0 1047 log_err("fio: ioengine= libaio, posixaio, sync, mmap, sgio, splice, cpu, null\n");
5f350952 1048 log_err("fio: or specify path to dynamic ioengine module\n");
ebac4655
JA
1049 return 1;
1050}
1051
e1f36503
JA
1052static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
1053{
1054 mlock_size = *val;
1055 return 0;
1056}
1057
34cfcdaf 1058#ifdef FIO_HAVE_IOPRIO
e1f36503
JA
1059static int str_prioclass_cb(void *data, unsigned int *val)
1060{
1061 struct thread_data *td = data;
1062
1063 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
1064 return 0;
1065}
1066
1067static int str_prio_cb(void *data, unsigned int *val)
1068{
1069 struct thread_data *td = data;
1070
1071 td->ioprio |= *val;
1072 return 0;
1073}
34cfcdaf 1074#endif
e1f36503
JA
1075
1076static int str_exitall_cb(void)
1077{
1078 exitall_on_terminate = 1;
1079 return 0;
1080}
1081
1082static int str_cpumask_cb(void *data, unsigned int *val)
1083{
1084 struct thread_data *td = data;
1085
1086 fill_cpu_mask(td->cpumask, *val);
1087 return 0;
1088}
1089
07261983
JA
1090/*
1091 * This is our [ini] type file parser.
1092 */
1e97cce9 1093static int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 1094{
e1f36503 1095 unsigned int global;
ebac4655 1096 struct thread_data *td;
fee3bb48 1097 char *string, *name;
ebac4655
JA
1098 fpos_t off;
1099 FILE *f;
1100 char *p;
0c7e37a0 1101 int ret = 0, stonewall;
ebac4655
JA
1102
1103 f = fopen(file, "r");
1104 if (!f) {
aea47d44 1105 perror("fopen job file");
ebac4655
JA
1106 return 1;
1107 }
1108
1109 string = malloc(4096);
1110 name = malloc(256);
fee3bb48 1111 memset(name, 0, 256);
ebac4655 1112
0c7e37a0 1113 stonewall = stonewall_flag;
7c124ac1
JA
1114 do {
1115 p = fgets(string, 4095, f);
1116 if (!p)
45410acb 1117 break;
ebac4655
JA
1118 if (is_empty_or_comment(p))
1119 continue;
fee3bb48 1120 if (sscanf(p, "[%255s]", name) != 1)
ebac4655
JA
1121 continue;
1122
1123 global = !strncmp(name, "global", 6);
1124
1125 name[strlen(name) - 1] = '\0';
1126
1127 td = get_new_job(global, &def_thread);
45410acb
JA
1128 if (!td) {
1129 ret = 1;
1130 break;
1131 }
ebac4655 1132
972cfd25
JA
1133 /*
1134 * Seperate multiple job files by a stonewall
1135 */
f9481919 1136 if (!global && stonewall) {
972cfd25
JA
1137 td->stonewall = stonewall;
1138 stonewall = 0;
1139 }
1140
ebac4655
JA
1141 fgetpos(f, &off);
1142 while ((p = fgets(string, 4096, f)) != NULL) {
1143 if (is_empty_or_comment(p))
1144 continue;
e1f36503 1145
b6754f9d 1146 strip_blank_front(&p);
7c124ac1
JA
1147
1148 if (p[0] == '[')
1149 break;
1150
4ae3f763 1151 strip_blank_end(p);
aea47d44 1152
e1f36503 1153 fgetpos(f, &off);
ebac4655 1154
45410acb
JA
1155 /*
1156 * Don't break here, continue parsing options so we
1157 * dump all the bad ones. Makes trial/error fixups
1158 * easier on the user.
1159 */
7c124ac1 1160 ret |= parse_option(p, options, td);
ebac4655 1161 }
ebac4655 1162
45410acb
JA
1163 if (!ret) {
1164 fsetpos(f, &off);
1165 ret = add_job(td, name, 0);
b1508cf9
JA
1166 } else {
1167 log_err("fio: job %s dropped\n", name);
1168 put_job(td);
45410acb 1169 }
7c124ac1 1170 } while (!ret);
ebac4655
JA
1171
1172 free(string);
1173 free(name);
1174 fclose(f);
45410acb 1175 return ret;
ebac4655
JA
1176}
1177
1178static int fill_def_thread(void)
1179{
1180 memset(&def_thread, 0, sizeof(def_thread));
1181
1182 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1183 perror("sched_getaffinity");
1184 return 1;
1185 }
1186
1187 /*
ee738499 1188 * fill default options
ebac4655 1189 */
ee738499
JA
1190 fill_default_options(&def_thread, options);
1191
972cfd25 1192 def_thread.timeout = def_timeout;
ec94ec56
JA
1193 def_thread.write_bw_log = write_bw_log;
1194 def_thread.write_lat_log = write_lat_log;
ee738499 1195
ebac4655
JA
1196#ifdef FIO_HAVE_DISK_UTIL
1197 def_thread.do_disk_util = 1;
1198#endif
1199
1200 return 0;
1201}
1202
0ab8db89 1203static void usage(void)
4785f995
JA
1204{
1205 printf("%s\n", fio_version_string);
b4692828
JA
1206 printf("\t--output\tWrite output to file\n");
1207 printf("\t--timeout\tRuntime in seconds\n");
1208 printf("\t--latency-log\tGenerate per-job latency logs\n");
1209 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1210 printf("\t--minimal\tMinimal (terse) output\n");
1211 printf("\t--version\tPrint version info and exit\n");
fd28ca49
JA
1212 printf("\t--help\t\tPrint this page\n");
1213 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
4785f995
JA
1214}
1215
972cfd25 1216static int parse_cmd_line(int argc, char *argv[])
ebac4655 1217{
b4692828 1218 struct thread_data *td = NULL;
c2b1e753 1219 int c, ini_idx = 0, lidx, ret;
ebac4655 1220
b4692828 1221 while ((c = getopt_long(argc, argv, "", long_options, &lidx)) != -1) {
ebac4655 1222 switch (c) {
b4692828
JA
1223 case 't':
1224 def_timeout = atoi(optarg);
1225 break;
1226 case 'l':
1227 write_lat_log = 1;
1228 break;
1229 case 'w':
1230 write_bw_log = 1;
1231 break;
1232 case 'o':
1233 f_out = fopen(optarg, "w+");
1234 if (!f_out) {
1235 perror("fopen output");
1236 exit(1);
1237 }
1238 f_err = f_out;
1239 break;
1240 case 'm':
1241 terse_output = 1;
1242 break;
1243 case 'h':
1244 usage();
1245 exit(0);
fd28ca49 1246 case 'c':
29fc6afe
JA
1247 ret = show_cmd_help(options, optarg);
1248 exit(ret);
b4692828
JA
1249 case 'v':
1250 printf("%s\n", fio_version_string);
1251 exit(0);
1252 case FIO_GETOPT_JOB: {
1253 const char *opt = long_options[lidx].name;
1254 char *val = optarg;
1255
c2b1e753
JA
1256 if (!strncmp(opt, "name", 4) && td) {
1257 ret = add_job(td, td->name ?: "fio", 0);
1258 if (ret) {
1259 put_job(td);
1260 return 0;
1261 }
1262 td = NULL;
1263 }
b4692828 1264 if (!td) {
38d0adb0 1265 int global = !strncmp(val, "global", 6);
c2b1e753
JA
1266
1267 td = get_new_job(global, &def_thread);
b4692828
JA
1268 if (!td)
1269 return 0;
1270 }
38d0adb0 1271
b1508cf9
JA
1272 ret = parse_cmd_option(opt, val, options, td);
1273 if (ret) {
1274 log_err("fio: job dropped\n");
1275 put_job(td);
1276 td = NULL;
1277 }
b4692828
JA
1278 break;
1279 }
1280 default:
b4692828 1281 break;
ebac4655
JA
1282 }
1283 }
c9fad893 1284
b4692828 1285 if (td) {
c2b1e753 1286 ret = add_job(td, td->name ?: "fio", 0);
b4692828
JA
1287 if (ret)
1288 put_job(td);
972cfd25 1289 }
774a6177 1290
b4692828
JA
1291 while (optind < argc) {
1292 ini_idx++;
1293 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1294 ini_file[ini_idx - 1] = strdup(argv[optind]);
1295 optind++;
eb8bbf48 1296 }
972cfd25
JA
1297
1298 return ini_idx;
ebac4655
JA
1299}
1300
1301static void free_shm(void)
1302{
1303 struct shmid_ds sbuf;
1304
1305 if (threads) {
2c0ecd28 1306 shmdt((void *) threads);
ebac4655
JA
1307 threads = NULL;
1308 shmctl(shm_id, IPC_RMID, &sbuf);
1309 }
1310}
1311
906c8d75
JA
1312/*
1313 * The thread area is shared between the main process and the job
1314 * threads/processes. So setup a shared memory segment that will hold
1315 * all the job info.
1316 */
ebac4655
JA
1317static int setup_thread_area(void)
1318{
1319 /*
1320 * 1024 is too much on some machines, scale max_jobs if
1321 * we get a failure that looks like too large a shm segment
1322 */
1323 do {
906c8d75 1324 size_t size = max_jobs * sizeof(struct thread_data);
ebac4655 1325
906c8d75 1326 shm_id = shmget(0, size, IPC_CREAT | 0600);
ebac4655
JA
1327 if (shm_id != -1)
1328 break;
1329 if (errno != EINVAL) {
1330 perror("shmget");
1331 break;
1332 }
1333
1334 max_jobs >>= 1;
1335 } while (max_jobs);
1336
1337 if (shm_id == -1)
1338 return 1;
1339
1340 threads = shmat(shm_id, NULL, 0);
1341 if (threads == (void *) -1) {
1342 perror("shmat");
1343 return 1;
1344 }
1345
1346 atexit(free_shm);
1347 return 0;
1348}
1349
b4692828
JA
1350/*
1351 * Copy the fio options into the long options map, so we mirror
1352 * job and cmd line options.
1353 */
1354static void dupe_job_options(void)
1355{
1356 struct fio_option *o;
1357 unsigned int i;
1358
1359 i = 0;
1360 while (long_options[i].name)
1361 i++;
1362
1363 o = &options[0];
1364 while (o->name) {
1365 long_options[i].name = o->name;
1366 long_options[i].val = FIO_GETOPT_JOB;
1367 if (o->type == FIO_OPT_STR_SET)
1368 long_options[i].has_arg = no_argument;
1369 else
1370 long_options[i].has_arg = required_argument;
1371
1372 i++;
1373 o++;
1374 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1375 }
1376}
1377
ebac4655
JA
1378int parse_options(int argc, char *argv[])
1379{
972cfd25
JA
1380 int job_files, i;
1381
b4692828
JA
1382 f_out = stdout;
1383 f_err = stderr;
1384
13335ddb
JA
1385 options_init(options);
1386
b4692828
JA
1387 dupe_job_options();
1388
ebac4655
JA
1389 if (setup_thread_area())
1390 return 1;
1391 if (fill_def_thread())
1392 return 1;
1393
972cfd25 1394 job_files = parse_cmd_line(argc, argv);
ebac4655 1395
972cfd25
JA
1396 for (i = 0; i < job_files; i++) {
1397 if (fill_def_thread())
1398 return 1;
0c7e37a0 1399 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1400 return 1;
88c6ed80 1401 free(ini_file[i]);
972cfd25 1402 }
ebac4655 1403
88c6ed80 1404 free(ini_file);
b4692828
JA
1405
1406 if (!thread_number) {
1407 log_err("No jobs defined(s)\n");
b4692828
JA
1408 return 1;
1409 }
1410
ebac4655
JA
1411 return 0;
1412}