syslet: x86_64 support
[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>
b4692828
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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_ioengine_cb(void *, const char *);
26static int str_mem_cb(void *, const char *);
e1f36503 27static int str_lockmem_cb(void *, unsigned long *);
34cfcdaf 28#ifdef FIO_HAVE_IOPRIO
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29static int str_prio_cb(void *, unsigned int *);
30static int str_prioclass_cb(void *, unsigned int *);
34cfcdaf 31#endif
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32static int str_exitall_cb(void);
33static int str_cpumask_cb(void *, unsigned int *);
34
ee738499
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35#define __stringify_1(x) #x
36#define __stringify(x) __stringify_1(x)
37
e1f36503
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38/*
39 * Map of job/command line options
40 */
41static struct fio_option options[] = {
61697c37
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42 {
43 .name = "description",
44 .type = FIO_OPT_STR_STORE,
45 .off1 = td_var_offset(description),
46 .help = "Text job description",
47 },
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48 {
49 .name = "name",
50 .type = FIO_OPT_STR_STORE,
51 .off1 = td_var_offset(name),
fd28ca49 52 .help = "Name of this job",
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53 },
54 {
55 .name = "directory",
56 .type = FIO_OPT_STR_STORE,
57 .off1 = td_var_offset(directory),
fd28ca49 58 .help = "Directory to store files in",
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59 },
60 {
61 .name = "filename",
62 .type = FIO_OPT_STR_STORE,
63 .off1 = td_var_offset(filename),
fd28ca49 64 .help = "Force the use of a specific file",
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65 },
66 {
67 .name = "rw",
68 .type = FIO_OPT_STR,
b1ec1da6 69 .off1 = td_var_offset(td_ddir),
15f7918f 70 .help = "IO direction",
ee738499 71 .def = "read",
b1ec1da6
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72 .posval = {
73 { .ival = "read", .oval = TD_DDIR_READ },
74 { .ival = "write", .oval = TD_DDIR_WRITE },
75 { .ival = "randread", .oval = TD_DDIR_RANDREAD },
76 { .ival = "randwrite", .oval = TD_DDIR_RANDWRITE },
77 { .ival = "rw", .oval = TD_DDIR_RW },
78 { .ival = "randrw", .oval = TD_DDIR_RANDRW },
79 },
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80 },
81 {
82 .name = "ioengine",
83 .type = FIO_OPT_STR,
84 .cb = str_ioengine_cb,
15f7918f 85 .help = "IO engine to use",
ee738499 86 .def = "sync",
b1ec1da6 87 .posval = {
10cad1aa
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88 { .ival = "sync", },
89#ifdef FIO_HAVE_LIBAIO
90 { .ival = "libaio", },
91#endif
92#ifdef FIO_HAVE_POSIXAIO
93 { .ival = "posixaio", },
94#endif
95 { .ival = "mmap", },
96#ifdef FIO_HAVE_SPLICE
97 { .ival = "splice", },
98#endif
99#ifdef FIO_HAVE_SGIO
100 { .ival = "sg", },
101#endif
b1ec1da6 102 { .ival = "null", }, { .ival = "net", },
10cad1aa 103#ifdef FIO_HAVE_SYSLET
b1ec1da6 104 { .ival = "syslet-rw", },
10cad1aa 105#endif
b1ec1da6 106 },
e1f36503 107 },
03b74b3e
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108 {
109 .name = "iodepth",
110 .type = FIO_OPT_INT,
111 .off1 = td_var_offset(iodepth),
112 .help = "Amount of IO buffers to keep in flight",
113 .def = "1",
114 },
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115 {
116 .name = "iodepth_batch",
117 .type = FIO_OPT_INT,
118 .off1 = td_var_offset(iodepth_batch),
119 .help = "Number of IO to submit in one go",
120 },
e916b390
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121 {
122 .name = "iodepth_low",
123 .type = FIO_OPT_INT,
124 .off1 = td_var_offset(iodepth_low),
125 .help = "Low water mark for queuing depth",
126 },
03b74b3e
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127 {
128 .name = "size",
129 .type = FIO_OPT_STR_VAL,
130 .off1 = td_var_offset(total_file_size),
131 .help = "Size of device or file",
132 },
133 {
134 .name = "bs",
135 .type = FIO_OPT_STR_VAL_INT,
136 .off1 = td_var_offset(bs[DDIR_READ]),
137 .off2 = td_var_offset(bs[DDIR_WRITE]),
138 .help = "Block size unit",
139 .def = "4k",
140 },
141 {
142 .name = "bsrange",
143 .type = FIO_OPT_RANGE,
144 .off1 = td_var_offset(min_bs[DDIR_READ]),
145 .off2 = td_var_offset(max_bs[DDIR_READ]),
146 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
147 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
148 .help = "Set block size range (in more detail than bs)",
149 },
150 {
151 .name = "bs_unaligned",
152 .type = FIO_OPT_STR_SET,
153 .off1 = td_var_offset(bs_unaligned),
154 .help = "Don't sector align IO buffer sizes",
155 },
156 {
157 .name = "offset",
158 .type = FIO_OPT_STR_VAL,
159 .off1 = td_var_offset(start_offset),
160 .help = "Start IO from this offset",
161 .def = "0",
162 },
163 {
164 .name = "randrepeat",
165 .type = FIO_OPT_BOOL,
166 .off1 = td_var_offset(rand_repeatable),
167 .help = "Use repeatable random IO pattern",
168 .def = "1",
169 },
170 {
171 .name = "norandommap",
172 .type = FIO_OPT_STR_SET,
173 .off1 = td_var_offset(norandommap),
174 .help = "Accept potential duplicate random blocks",
175 },
176 {
177 .name = "nrfiles",
178 .type = FIO_OPT_INT,
179 .off1 = td_var_offset(nr_files),
180 .help = "Split job workload between this number of files",
181 .def = "1",
182 },
0aabe160
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183 {
184 .name = "file_service_type",
185 .type = FIO_OPT_STR,
b1ec1da6 186 .off1 = td_var_offset(file_service_type),
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187 .help = "How to select which file to service next",
188 .def = "roundrobin",
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189 .posval = {
190 { .ival = "random", .oval = FIO_FSERVICE_RANDOM },
191 { .ival = "roundrobin", .oval = FIO_FSERVICE_RR },
192 },
0aabe160 193 },
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194 {
195 .name = "fsync",
196 .type = FIO_OPT_INT,
197 .off1 = td_var_offset(fsync_blocks),
198 .help = "Issue fsync for writes every given number of blocks",
199 .def = "0",
200 },
201 {
202 .name = "direct",
203 .type = FIO_OPT_BOOL,
204 .off1 = td_var_offset(odirect),
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205 .help = "Use O_DIRECT IO (negates buffered)",
206 .def = "0",
207 },
208 {
209 .name = "buffered",
210 .type = FIO_OPT_BOOL,
211 .off1 = td_var_offset(odirect),
212 .neg = 1,
213 .help = "Use buffered IO (negates direct)",
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214 .def = "1",
215 },
216 {
217 .name = "overwrite",
218 .type = FIO_OPT_BOOL,
219 .off1 = td_var_offset(overwrite),
220 .help = "When writing, set whether to overwrite current data",
221 .def = "0",
222 },
223 {
224 .name = "loops",
225 .type = FIO_OPT_INT,
226 .off1 = td_var_offset(loops),
227 .help = "Number of times to run the job",
228 .def = "1",
229 },
230 {
231 .name = "numjobs",
232 .type = FIO_OPT_INT,
233 .off1 = td_var_offset(numjobs),
234 .help = "Duplicate this job this many times",
235 .def = "1",
236 },
237 {
238 .name = "startdelay",
239 .type = FIO_OPT_INT,
240 .off1 = td_var_offset(start_delay),
241 .help = "Only start job when this period has passed",
242 .def = "0",
243 },
244 {
245 .name = "runtime",
246 .alias = "timeout",
247 .type = FIO_OPT_STR_VAL_TIME,
248 .off1 = td_var_offset(timeout),
249 .help = "Stop workload when this amount of time has passed",
250 .def = "0",
251 },
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252 {
253 .name = "mem",
254 .type = FIO_OPT_STR,
255 .cb = str_mem_cb,
b1ec1da6 256 .off1 = td_var_offset(mem_type),
15f7918f 257 .help = "Backing type for IO buffers",
ee738499 258 .def = "malloc",
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259 .posval = {
260 { .ival = "malloc", .oval = MEM_MALLOC },
261 { .ival = "shm", .oval = MEM_SHM },
262#ifdef FIO_HAVE_HUGETLB
263 { .ival = "shmhuge", .oval = MEM_SHMHUGE },
264#endif
265 { .ival = "mmap", .oval = MEM_MMAP },
266#ifdef FIO_HAVE_HUGETLB
267 { .ival = "mmaphuge", .oval = MEM_MMAPHUGE },
268#endif
269 },
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270 },
271 {
272 .name = "verify",
273 .type = FIO_OPT_STR,
b1ec1da6 274 .off1 = td_var_offset(verify),
15f7918f 275 .help = "Verify sum function",
ee738499 276 .def = "0",
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277 .posval = {
278 { .ival = "0", .oval = VERIFY_NONE },
279 { .ival = "crc32", .oval = VERIFY_CRC32 },
280 { .ival = "md5", .oval = VERIFY_MD5 },
281 },
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282 },
283 {
284 .name = "write_iolog",
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285 .type = FIO_OPT_STR_STORE,
286 .off1 = td_var_offset(write_iolog_file),
fd28ca49 287 .help = "Store IO pattern to file",
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288 },
289 {
076efc7c 290 .name = "read_iolog",
e1f36503 291 .type = FIO_OPT_STR_STORE,
076efc7c 292 .off1 = td_var_offset(read_iolog_file),
fd28ca49 293 .help = "Playback IO pattern from file",
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294 },
295 {
296 .name = "exec_prerun",
297 .type = FIO_OPT_STR_STORE,
298 .off1 = td_var_offset(exec_prerun),
fd28ca49 299 .help = "Execute this file prior to running job",
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300 },
301 {
302 .name = "exec_postrun",
303 .type = FIO_OPT_STR_STORE,
304 .off1 = td_var_offset(exec_postrun),
fd28ca49 305 .help = "Execute this file after running job",
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306 },
307#ifdef FIO_HAVE_IOSCHED_SWITCH
308 {
309 .name = "ioscheduler",
310 .type = FIO_OPT_STR_STORE,
311 .off1 = td_var_offset(ioscheduler),
fd28ca49 312 .help = "Use this IO scheduler on the backing device",
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313 },
314#endif
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315 {
316 .name = "zonesize",
317 .type = FIO_OPT_STR_VAL,
318 .off1 = td_var_offset(zone_size),
fd28ca49 319 .help = "Give size of an IO zone",
ee738499 320 .def = "0",
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321 },
322 {
323 .name = "zoneskip",
324 .type = FIO_OPT_STR_VAL,
325 .off1 = td_var_offset(zone_skip),
fd28ca49 326 .help = "Space between IO zones",
ee738499 327 .def = "0",
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328 },
329 {
330 .name = "lockmem",
331 .type = FIO_OPT_STR_VAL,
332 .cb = str_lockmem_cb,
fd28ca49 333 .help = "Lock down this amount of memory",
ee738499 334 .def = "0",
e1f36503 335 },
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336 {
337 .name = "rwmixcycle",
338 .type = FIO_OPT_INT,
339 .off1 = td_var_offset(rwmixcycle),
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340 .help = "Cycle period for mixed read/write workloads (msec)",
341 .def = "500",
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342 },
343 {
344 .name = "rwmixread",
345 .type = FIO_OPT_INT,
346 .off1 = td_var_offset(rwmixread),
ee738499 347 .maxval = 100,
fd28ca49 348 .help = "Percentage of mixed workload that is reads",
ee738499 349 .def = "50",
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350 },
351 {
352 .name = "rwmixwrite",
353 .type = FIO_OPT_INT,
354 .off1 = td_var_offset(rwmixwrite),
ee738499 355 .maxval = 100,
fd28ca49 356 .help = "Percentage of mixed workload that is writes",
ee738499 357 .def = "50",
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358 },
359 {
360 .name = "nice",
361 .type = FIO_OPT_INT,
362 .off1 = td_var_offset(nice),
fd28ca49 363 .help = "Set job CPU nice value",
15f7918f 364 .minval = -19,
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365 .maxval = 20,
366 .def = "0",
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367 },
368#ifdef FIO_HAVE_IOPRIO
369 {
370 .name = "prio",
371 .type = FIO_OPT_INT,
372 .cb = str_prio_cb,
fd28ca49 373 .help = "Set job IO priority value",
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374 .minval = 0,
375 .maxval = 7,
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376 },
377 {
378 .name = "prioclass",
379 .type = FIO_OPT_INT,
380 .cb = str_prioclass_cb,
fd28ca49 381 .help = "Set job IO priority class",
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382 .minval = 0,
383 .maxval = 3,
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384 },
385#endif
386 {
387 .name = "thinktime",
388 .type = FIO_OPT_INT,
1304923a 389 .off1 = td_var_offset(thinktime),
5fa0f817 390 .help = "Idle time between IO buffers (usec)",
ee738499 391 .def = "0",
e1f36503 392 },
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393 {
394 .name = "thinktime_spin",
395 .type = FIO_OPT_INT,
396 .off1 = td_var_offset(thinktime_spin),
397 .help = "Start thinktime by spinning this amount (usec)",
398 .def = "0",
399 },
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400 {
401 .name = "thinktime_blocks",
402 .type = FIO_OPT_INT,
1304923a 403 .off1 = td_var_offset(thinktime_blocks),
fd28ca49 404 .help = "IO buffer period between 'thinktime'",
ee738499 405 .def = "1",
9c1f7434 406 },
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407 {
408 .name = "rate",
409 .type = FIO_OPT_INT,
1304923a 410 .off1 = td_var_offset(rate),
fd28ca49 411 .help = "Set bandwidth rate",
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412 },
413 {
414 .name = "ratemin",
415 .type = FIO_OPT_INT,
1304923a 416 .off1 = td_var_offset(ratemin),
fd28ca49 417 .help = "The bottom limit accepted",
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418 },
419 {
420 .name = "ratecycle",
421 .type = FIO_OPT_INT,
1304923a 422 .off1 = td_var_offset(ratecycle),
6da1fa7f 423 .help = "Window average for rate limits (msec)",
ee738499 424 .def = "1000",
e1f36503 425 },
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426 {
427 .name = "invalidate",
13335ddb 428 .type = FIO_OPT_BOOL,
1304923a 429 .off1 = td_var_offset(invalidate_cache),
fd28ca49 430 .help = "Invalidate buffer/page cache prior to running job",
ee738499 431 .def = "1",
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432 },
433 {
434 .name = "sync",
13335ddb 435 .type = FIO_OPT_BOOL,
1304923a 436 .off1 = td_var_offset(sync_io),
fd28ca49 437 .help = "Use O_SYNC for buffered writes",
ee738499 438 .def = "0",
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439 },
440 {
441 .name = "bwavgtime",
442 .type = FIO_OPT_INT,
1304923a 443 .off1 = td_var_offset(bw_avg_time),
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444 .help = "Time window over which to calculate bandwidth (msec)",
445 .def = "500",
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446 },
447 {
448 .name = "create_serialize",
13335ddb 449 .type = FIO_OPT_BOOL,
1304923a 450 .off1 = td_var_offset(create_serialize),
fd28ca49 451 .help = "Serialize creating of job files",
ee738499 452 .def = "1",
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453 },
454 {
455 .name = "create_fsync",
13335ddb 456 .type = FIO_OPT_BOOL,
1304923a 457 .off1 = td_var_offset(create_fsync),
fd28ca49 458 .help = "Fsync file after creation",
ee738499 459 .def = "1",
e1f36503 460 },
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461 {
462 .name = "cpuload",
463 .type = FIO_OPT_INT,
1304923a 464 .off1 = td_var_offset(cpuload),
fd28ca49 465 .help = "Use this percentage of CPU",
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466 },
467 {
468 .name = "cpuchunks",
469 .type = FIO_OPT_INT,
1304923a 470 .off1 = td_var_offset(cpucycle),
fd28ca49 471 .help = "Length of the CPU burn cycles",
e1f36503 472 },
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473#ifdef FIO_HAVE_CPU_AFFINITY
474 {
475 .name = "cpumask",
476 .type = FIO_OPT_INT,
477 .cb = str_cpumask_cb,
fd28ca49 478 .help = "CPU affinity mask",
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479 },
480#endif
481 {
482 .name = "end_fsync",
13335ddb 483 .type = FIO_OPT_BOOL,
1304923a 484 .off1 = td_var_offset(end_fsync),
fd28ca49 485 .help = "Include fsync at the end of job",
ee738499 486 .def = "0",
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487 },
488 {
489 .name = "unlink",
13335ddb 490 .type = FIO_OPT_BOOL,
e1f36503 491 .off1 = td_var_offset(unlink),
ee738499 492 .help = "Unlink created files after job has completed",
e545a6ce 493 .def = "0",
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494 },
495 {
496 .name = "exitall",
497 .type = FIO_OPT_STR_SET,
498 .cb = str_exitall_cb,
fd28ca49 499 .help = "Terminate all jobs when one exits",
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500 },
501 {
502 .name = "stonewall",
503 .type = FIO_OPT_STR_SET,
504 .off1 = td_var_offset(stonewall),
fd28ca49 505 .help = "Insert a hard barrier between this job and previous",
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506 },
507 {
508 .name = "thread",
509 .type = FIO_OPT_STR_SET,
d9bb3b80 510 .off1 = td_var_offset(use_thread),
fd28ca49 511 .help = "Use threads instead of forks",
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512 },
513 {
514 .name = "write_bw_log",
515 .type = FIO_OPT_STR_SET,
516 .off1 = td_var_offset(write_bw_log),
fd28ca49 517 .help = "Write log of bandwidth during run",
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518 },
519 {
520 .name = "write_lat_log",
521 .type = FIO_OPT_STR_SET,
522 .off1 = td_var_offset(write_lat_log),
fd28ca49 523 .help = "Write log of latency during run",
e1f36503 524 },
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525 {
526 .name = "hugepage-size",
527 .type = FIO_OPT_STR_VAL,
528 .off1 = td_var_offset(hugepage_size),
fd28ca49 529 .help = "When using hugepages, specify size of each page",
ee738499 530 .def = __stringify(FIO_HUGE_PAGE),
56bb17f2 531 },
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532 {
533 .name = NULL,
534 },
535};
536
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537#define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
538#define FIO_CMD_OPTS (16)
539#define FIO_GETOPT_JOB (0x89988998)
540
541/*
542 * Command line options. These will contain the above, plus a few
543 * extra that only pertain to fio itself and not jobs.
544 */
545static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
546 {
547 .name = "output",
548 .has_arg = required_argument,
549 .val = 'o',
550 },
551 {
552 .name = "timeout",
553 .has_arg = required_argument,
554 .val = 't',
555 },
556 {
557 .name = "latency-log",
558 .has_arg = required_argument,
559 .val = 'l',
560 },
561 {
562 .name = "bandwidth-log",
563 .has_arg = required_argument,
564 .val = 'b',
565 },
566 {
567 .name = "minimal",
568 .has_arg = optional_argument,
569 .val = 'm',
570 },
571 {
572 .name = "version",
573 .has_arg = no_argument,
574 .val = 'v',
575 },
fd28ca49
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576 {
577 .name = "help",
578 .has_arg = no_argument,
579 .val = 'h',
580 },
581 {
582 .name = "cmdhelp",
583 .has_arg = required_argument,
584 .val = 'c',
585 },
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586 {
587 .name = NULL,
588 },
589};
590
ee738499 591static int def_timeout = 0;
972cfd25 592
e77fe33a 593static char fio_version_string[] = "fio 1.12";
ebac4655 594
972cfd25 595static char **ini_file;
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596static int max_jobs = MAX_JOBS;
597
598struct thread_data def_thread;
599struct thread_data *threads = NULL;
600
ebac4655 601int exitall_on_terminate = 0;
c6ae0a5b 602int terse_output = 0;
c04f7ec3 603unsigned long long mlock_size = 0;
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604FILE *f_out = NULL;
605FILE *f_err = NULL;
ebac4655 606
ee738499 607static int write_lat_log = 0;
bb3884d8 608int write_bw_log = 0;
ec94ec56 609
906c8d75
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610/*
611 * Return a free job structure.
612 */
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613static struct thread_data *get_new_job(int global, struct thread_data *parent)
614{
615 struct thread_data *td;
616
617 if (global)
618 return &def_thread;
619 if (thread_number >= max_jobs)
620 return NULL;
621
622 td = &threads[thread_number++];
ddaeaa5a 623 *td = *parent;
ebac4655 624
ebac4655 625 td->thread_number = thread_number;
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626 return td;
627}
628
629static void put_job(struct thread_data *td)
630{
549577a7
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631 if (td == &def_thread)
632 return;
633
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634 if (td->error)
635 fprintf(f_out, "fio: %s\n", td->verror);
636
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637 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
638 thread_number--;
639}
640
dad915e3
JA
641/*
642 * Lazy way of fixing up options that depend on each other. We could also
643 * define option callback handlers, but this is easier.
644 */
e1f36503
JA
645static void fixup_options(struct thread_data *td)
646{
e1f36503
JA
647 if (!td->rwmixread && td->rwmixwrite)
648 td->rwmixread = 100 - td->rwmixwrite;
dad915e3 649
076efc7c
JA
650 if (td->write_iolog_file && td->read_iolog_file) {
651 log_err("fio: read iolog overrides write_iolog\n");
652 free(td->write_iolog_file);
653 td->write_iolog_file = NULL;
654 }
16b462ae
JA
655
656 if (td->io_ops->flags & FIO_SYNCIO)
657 td->iodepth = 1;
658 else {
659 if (!td->iodepth)
660 td->iodepth = td->nr_files;
661 }
662
663 /*
664 * only really works for sequential io for now, and with 1 file
665 */
413dd459 666 if (td->zone_size && td_random(td) && td->nr_files == 1)
16b462ae
JA
667 td->zone_size = 0;
668
669 /*
670 * Reads can do overwrites, we always need to pre-create the file
671 */
672 if (td_read(td) || td_rw(td))
673 td->overwrite = 1;
674
a00735e6
JA
675 if (!td->min_bs[DDIR_READ])
676 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
677 if (!td->max_bs[DDIR_READ])
678 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
679 if (!td->min_bs[DDIR_WRITE])
75e6f36f 680 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
a00735e6 681 if (!td->max_bs[DDIR_WRITE])
75e6f36f 682 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
a00735e6
JA
683
684 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
685
16b462ae
JA
686 if (td_read(td) && !td_rw(td))
687 td->verify = 0;
bb8895e0
JA
688
689 if (td->norandommap && td->verify != VERIFY_NONE) {
690 log_err("fio: norandommap given, verify disabled\n");
691 td->verify = VERIFY_NONE;
692 }
690adba3
JA
693 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
694 log_err("fio: bs_unaligned may not work with raw io\n");
e0a22335
JA
695
696 /*
697 * O_DIRECT and char doesn't mix, clear that flag if necessary.
698 */
699 if (td->filetype == FIO_TYPE_CHAR && td->odirect)
700 td->odirect = 0;
48097d5c
JA
701
702 /*
703 * thinktime_spin must be less than thinktime
704 */
705 if (td->thinktime_spin > td->thinktime)
706 td->thinktime_spin = td->thinktime;
e916b390
JA
707
708 /*
709 * The low water mark cannot be bigger than the iodepth
710 */
9467b77c
JA
711 if (td->iodepth_low > td->iodepth || !td->iodepth_low) {
712 /*
713 * syslet work around - if the workload is sequential,
714 * we want to let the queue drain all the way down to
715 * avoid seeking between async threads
716 */
717 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
718 td->iodepth_low = 1;
719 else
720 td->iodepth_low = td->iodepth;
721 }
cb5ab512
JA
722
723 /*
724 * If batch number isn't set, default to the same as iodepth
725 */
726 if (td->iodepth_batch > td->iodepth || !td->iodepth_batch)
727 td->iodepth_batch = td->iodepth;
e1f36503
JA
728}
729
f8977ee6
JA
730/*
731 * This function leaks the buffer
732 */
733static char *to_kmg(unsigned int val)
734{
735 char *buf = malloc(32);
f3502ba2 736 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
f8977ee6
JA
737 char *p = post;
738
245142ff 739 do {
f8977ee6
JA
740 if (val & 1023)
741 break;
742
743 val >>= 10;
744 p++;
245142ff 745 } while (*p);
f8977ee6
JA
746
747 snprintf(buf, 31, "%u%c", val, *p);
748 return buf;
749}
750
906c8d75
JA
751/*
752 * Adds a job to the list of things todo. Sanitizes the various options
753 * to make sure we don't have conflicts, and initializes various
754 * members of td.
755 */
75154845 756static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 757{
413dd459
JA
758 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
759 "randread", "randwrite", "randrw" };
ebac4655 760 struct stat sb;
413dd459 761 int numjobs, i;
53cdc686 762 struct fio_file *f;
ebac4655 763
ebac4655
JA
764 /*
765 * the def_thread is just for options, it's not a real job
766 */
767 if (td == &def_thread)
768 return 0;
769
ee738499 770 assert(td->io_ops);
df64119d 771
690adba3
JA
772 if (td->odirect)
773 td->io_ops->flags |= FIO_RAWIO;
774
ebac4655 775 td->filetype = FIO_TYPE_FILE;
890df538 776 if (td->filename && !lstat(td->filename, &sb)) {
0af7b542
JA
777 if (S_ISBLK(sb.st_mode))
778 td->filetype = FIO_TYPE_BD;
779 else if (S_ISCHR(sb.st_mode))
780 td->filetype = FIO_TYPE_CHAR;
781 }
ebac4655 782
e0a22335
JA
783 fixup_options(td);
784
13f8e2d2
JA
785 if (td->filename)
786 td->nr_uniq_files = 1;
787 else
788 td->nr_uniq_files = td->nr_files;
789
790 if (td->filetype == FIO_TYPE_FILE || td->filename) {
e9c047a0 791 char tmp[PATH_MAX];
53cdc686 792 int len = 0;
e9c047a0 793
16edf25d
JA
794 if (td->directory && td->directory[0] != '\0') {
795 if (lstat(td->directory, &sb) < 0) {
796 log_err("fio: %s is not a directory\n", td->directory);
e1161c32 797 td_verror(td, errno, "lstat");
16edf25d
JA
798 return 1;
799 }
800 if (!S_ISDIR(sb.st_mode)) {
801 log_err("fio: %s is not a directory\n", td->directory);
802 return 1;
803 }
8aeebd55 804 len = sprintf(tmp, "%s/", td->directory);
16edf25d 805 }
ebac4655 806
53cdc686
JA
807 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
808
809 for_each_file(td, f, i) {
810 memset(f, 0, sizeof(*f));
811 f->fd = -1;
812
13f8e2d2
JA
813 if (td->filename)
814 sprintf(tmp + len, "%s", td->filename);
815 else
816 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
53cdc686
JA
817 f->file_name = strdup(tmp);
818 }
819 } else {
820 td->nr_files = 1;
821 td->files = malloc(sizeof(struct fio_file));
822 f = &td->files[0];
823
824 memset(f, 0, sizeof(*f));
825 f->fd = -1;
826 f->file_name = strdup(jobname);
827 }
828
829 for_each_file(td, f, i) {
830 f->file_size = td->total_file_size / td->nr_files;
831 f->file_offset = td->start_offset;
832 }
833
bbfd6b00 834 fio_sem_init(&td->mutex, 0);
ebac4655 835
079ad09b
JA
836 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
837 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
838 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
ebac4655 839
ebac4655
JA
840 if (td->stonewall && td->thread_number > 1)
841 groupid++;
842
843 td->groupid = groupid;
844
845 if (setup_rate(td))
846 goto err;
847
ec94ec56 848 if (td->write_lat_log) {
079ad09b
JA
849 setup_log(&td->ts.slat_log);
850 setup_log(&td->ts.clat_log);
ebac4655 851 }
ec94ec56 852 if (td->write_bw_log)
079ad09b 853 setup_log(&td->ts.bw_log);
ebac4655 854
b4692828
JA
855 if (!td->name)
856 td->name = strdup(jobname);
01452055 857
c6ae0a5b 858 if (!terse_output) {
b990b5c0 859 if (!job_add_num) {
2866c82d 860 if (td->io_ops->flags & FIO_CPUIO)
b990b5c0 861 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
f8977ee6
JA
862 else {
863 char *c1, *c2, *c3, *c4;
864
865 c1 = to_kmg(td->min_bs[DDIR_READ]);
866 c2 = to_kmg(td->max_bs[DDIR_READ]);
867 c3 = to_kmg(td->min_bs[DDIR_WRITE]);
868 c4 = to_kmg(td->max_bs[DDIR_WRITE]);
869
413dd459 870 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
871
872 free(c1);
873 free(c2);
874 free(c3);
875 free(c4);
876 }
b990b5c0 877 } else if (job_add_num == 1)
c6ae0a5b
JA
878 fprintf(f_out, "...\n");
879 }
ebac4655
JA
880
881 /*
882 * recurse add identical jobs, clear numjobs and stonewall options
883 * as they don't apply to sub-jobs
884 */
885 numjobs = td->numjobs;
886 while (--numjobs) {
887 struct thread_data *td_new = get_new_job(0, td);
888
889 if (!td_new)
890 goto err;
891
892 td_new->numjobs = 1;
893 td_new->stonewall = 0;
75154845 894 job_add_num = numjobs - 1;
ebac4655 895
75154845 896 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA
897 goto err;
898 }
899 return 0;
900err:
901 put_job(td);
902 return -1;
903}
904
906c8d75
JA
905/*
906 * Initialize the various random states we need (random io, block size ranges,
907 * read/write mix, etc).
908 */
ebac4655
JA
909int init_random_state(struct thread_data *td)
910{
0aabe160 911 unsigned long seeds[5];
53cdc686 912 int fd, num_maps, blocks, i;
0ab8db89 913 struct fio_file *f;
ebac4655 914
f48b467c
JA
915 if (td->io_ops->flags & FIO_CPUIO)
916 return 0;
917
1ac267bb 918 fd = open("/dev/urandom", O_RDONLY);
ebac4655 919 if (fd == -1) {
e1161c32 920 td_verror(td, errno, "open");
ebac4655
JA
921 return 1;
922 }
923
a6ccc7be 924 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
e1161c32 925 td_verror(td, EIO, "read");
ebac4655
JA
926 close(fd);
927 return 1;
928 }
929
930 close(fd);
931
6dfd46b9
JA
932 os_random_seed(seeds[0], &td->bsrange_state);
933 os_random_seed(seeds[1], &td->verify_state);
934 os_random_seed(seeds[2], &td->rwmix_state);
ebac4655 935
413dd459
JA
936 if (td->file_service_type == FIO_FSERVICE_RANDOM)
937 os_random_seed(seeds[3], &td->next_file_state);
938
939 if (!td_random(td))
ebac4655
JA
940 return 0;
941
9ebc27e1 942 if (td->rand_repeatable)
0aabe160 943 seeds[4] = FIO_RANDSEED * td->thread_number;
ebac4655 944
bb8895e0
JA
945 if (!td->norandommap) {
946 for_each_file(td, f, i) {
a4a81712 947 blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
c7c280ed 948 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
bb8895e0
JA
949 f->file_map = malloc(num_maps * sizeof(long));
950 f->num_maps = num_maps;
951 memset(f->file_map, 0, num_maps * sizeof(long));
952 }
53cdc686 953 }
ebac4655 954
0aabe160 955 os_random_seed(seeds[4], &td->random_state);
ebac4655
JA
956 return 0;
957}
958
959static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
960{
961#ifdef FIO_HAVE_CPU_AFFINITY
962 unsigned int i;
963
964 CPU_ZERO(&cpumask);
965
966 for (i = 0; i < sizeof(int) * 8; i++) {
967 if ((1 << i) & cpu)
968 CPU_SET(i, &cpumask);
969 }
970#endif
971}
972
ebac4655
JA
973static int is_empty_or_comment(char *line)
974{
975 unsigned int i;
976
977 for (i = 0; i < strlen(line); i++) {
978 if (line[i] == ';')
979 return 1;
5cc2da30
IM
980 if (line[i] == '#')
981 return 1;
ebac4655
JA
982 if (!isspace(line[i]) && !iscntrl(line[i]))
983 return 0;
984 }
985
986 return 1;
987}
988
313cb206
JA
989/*
990 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
991 */
992static char *get_mmap_file(const char *str)
993{
994 char *p = strstr(str, ":");
995
996 if (!p)
997 return NULL;
998
999 p++;
1000 strip_blank_front(&p);
1001 strip_blank_end(p);
1002 return strdup(p);
1003}
1004
b4692828 1005static int str_mem_cb(void *data, const char *mem)
ebac4655 1006{
cb2c86fd
JA
1007 struct thread_data *td = data;
1008
b1ec1da6 1009 if (td->mem_type == MEM_MMAPHUGE || td->mem_type == MEM_MMAP) {
313cb206 1010 td->mmapfile = get_mmap_file(mem);
b1ec1da6 1011 if (td->mem_type == MEM_MMAPHUGE && !td->mmapfile) {
d0bdaf49
JA
1012 log_err("fio: mmaphuge:/path/to/file\n");
1013 return 1;
1014 }
ebac4655
JA
1015 }
1016
b1ec1da6 1017 return 0;
ebac4655
JA
1018}
1019
b4692828 1020static int str_ioengine_cb(void *data, const char *str)
ebac4655 1021{
cb2c86fd
JA
1022 struct thread_data *td = data;
1023
2866c82d
JA
1024 td->io_ops = load_ioengine(td, str);
1025 if (td->io_ops)
b990b5c0 1026 return 0;
ebac4655 1027
ebac4655
JA
1028 return 1;
1029}
1030
e1f36503
JA
1031static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
1032{
1033 mlock_size = *val;
1034 return 0;
1035}
1036
34cfcdaf 1037#ifdef FIO_HAVE_IOPRIO
e1f36503
JA
1038static int str_prioclass_cb(void *data, unsigned int *val)
1039{
1040 struct thread_data *td = data;
1041
1042 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
1043 return 0;
1044}
1045
1046static int str_prio_cb(void *data, unsigned int *val)
1047{
1048 struct thread_data *td = data;
1049
1050 td->ioprio |= *val;
1051 return 0;
1052}
34cfcdaf 1053#endif
e1f36503
JA
1054
1055static int str_exitall_cb(void)
1056{
1057 exitall_on_terminate = 1;
1058 return 0;
1059}
1060
1061static int str_cpumask_cb(void *data, unsigned int *val)
1062{
1063 struct thread_data *td = data;
1064
1065 fill_cpu_mask(td->cpumask, *val);
1066 return 0;
1067}
1068
07261983
JA
1069/*
1070 * This is our [ini] type file parser.
1071 */
1e97cce9 1072static int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 1073{
e1f36503 1074 unsigned int global;
ebac4655 1075 struct thread_data *td;
fee3bb48 1076 char *string, *name;
ebac4655
JA
1077 fpos_t off;
1078 FILE *f;
1079 char *p;
0c7e37a0 1080 int ret = 0, stonewall;
ebac4655
JA
1081
1082 f = fopen(file, "r");
1083 if (!f) {
aea47d44 1084 perror("fopen job file");
ebac4655
JA
1085 return 1;
1086 }
1087
1088 string = malloc(4096);
1089 name = malloc(256);
fee3bb48 1090 memset(name, 0, 256);
ebac4655 1091
0c7e37a0 1092 stonewall = stonewall_flag;
7c124ac1
JA
1093 do {
1094 p = fgets(string, 4095, f);
1095 if (!p)
45410acb 1096 break;
ebac4655
JA
1097 if (is_empty_or_comment(p))
1098 continue;
fee3bb48 1099 if (sscanf(p, "[%255s]", name) != 1)
ebac4655
JA
1100 continue;
1101
1102 global = !strncmp(name, "global", 6);
1103
1104 name[strlen(name) - 1] = '\0';
1105
1106 td = get_new_job(global, &def_thread);
45410acb
JA
1107 if (!td) {
1108 ret = 1;
1109 break;
1110 }
ebac4655 1111
972cfd25
JA
1112 /*
1113 * Seperate multiple job files by a stonewall
1114 */
f9481919 1115 if (!global && stonewall) {
972cfd25
JA
1116 td->stonewall = stonewall;
1117 stonewall = 0;
1118 }
1119
ebac4655
JA
1120 fgetpos(f, &off);
1121 while ((p = fgets(string, 4096, f)) != NULL) {
1122 if (is_empty_or_comment(p))
1123 continue;
e1f36503 1124
b6754f9d 1125 strip_blank_front(&p);
7c124ac1
JA
1126
1127 if (p[0] == '[')
1128 break;
1129
4ae3f763 1130 strip_blank_end(p);
aea47d44 1131
e1f36503 1132 fgetpos(f, &off);
ebac4655 1133
45410acb
JA
1134 /*
1135 * Don't break here, continue parsing options so we
1136 * dump all the bad ones. Makes trial/error fixups
1137 * easier on the user.
1138 */
7c124ac1 1139 ret |= parse_option(p, options, td);
ebac4655 1140 }
ebac4655 1141
45410acb
JA
1142 if (!ret) {
1143 fsetpos(f, &off);
1144 ret = add_job(td, name, 0);
b1508cf9
JA
1145 } else {
1146 log_err("fio: job %s dropped\n", name);
1147 put_job(td);
45410acb 1148 }
7c124ac1 1149 } while (!ret);
ebac4655
JA
1150
1151 free(string);
1152 free(name);
1153 fclose(f);
45410acb 1154 return ret;
ebac4655
JA
1155}
1156
1157static int fill_def_thread(void)
1158{
1159 memset(&def_thread, 0, sizeof(def_thread));
1160
1161 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1162 perror("sched_getaffinity");
1163 return 1;
1164 }
1165
1166 /*
ee738499 1167 * fill default options
ebac4655 1168 */
ee738499
JA
1169 fill_default_options(&def_thread, options);
1170
972cfd25 1171 def_thread.timeout = def_timeout;
ec94ec56
JA
1172 def_thread.write_bw_log = write_bw_log;
1173 def_thread.write_lat_log = write_lat_log;
ee738499 1174
ebac4655
JA
1175#ifdef FIO_HAVE_DISK_UTIL
1176 def_thread.do_disk_util = 1;
1177#endif
1178
1179 return 0;
1180}
1181
0ab8db89 1182static void usage(void)
4785f995
JA
1183{
1184 printf("%s\n", fio_version_string);
b4692828
JA
1185 printf("\t--output\tWrite output to file\n");
1186 printf("\t--timeout\tRuntime in seconds\n");
1187 printf("\t--latency-log\tGenerate per-job latency logs\n");
1188 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1189 printf("\t--minimal\tMinimal (terse) output\n");
1190 printf("\t--version\tPrint version info and exit\n");
fd28ca49
JA
1191 printf("\t--help\t\tPrint this page\n");
1192 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
4785f995
JA
1193}
1194
972cfd25 1195static int parse_cmd_line(int argc, char *argv[])
ebac4655 1196{
b4692828 1197 struct thread_data *td = NULL;
b1ec1da6 1198 int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
ebac4655 1199
b4692828 1200 while ((c = getopt_long(argc, argv, "", long_options, &lidx)) != -1) {
ebac4655 1201 switch (c) {
b4692828
JA
1202 case 't':
1203 def_timeout = atoi(optarg);
1204 break;
1205 case 'l':
1206 write_lat_log = 1;
1207 break;
1208 case 'w':
1209 write_bw_log = 1;
1210 break;
1211 case 'o':
1212 f_out = fopen(optarg, "w+");
1213 if (!f_out) {
1214 perror("fopen output");
1215 exit(1);
1216 }
1217 f_err = f_out;
1218 break;
1219 case 'm':
1220 terse_output = 1;
1221 break;
1222 case 'h':
1223 usage();
1224 exit(0);
fd28ca49 1225 case 'c':
29fc6afe
JA
1226 ret = show_cmd_help(options, optarg);
1227 exit(ret);
b4692828
JA
1228 case 'v':
1229 printf("%s\n", fio_version_string);
1230 exit(0);
1231 case FIO_GETOPT_JOB: {
1232 const char *opt = long_options[lidx].name;
1233 char *val = optarg;
1234
c2b1e753
JA
1235 if (!strncmp(opt, "name", 4) && td) {
1236 ret = add_job(td, td->name ?: "fio", 0);
1237 if (ret) {
1238 put_job(td);
1239 return 0;
1240 }
1241 td = NULL;
1242 }
b4692828 1243 if (!td) {
38d0adb0 1244 int global = !strncmp(val, "global", 6);
c2b1e753
JA
1245
1246 td = get_new_job(global, &def_thread);
b4692828
JA
1247 if (!td)
1248 return 0;
1249 }
38d0adb0 1250
b1508cf9 1251 ret = parse_cmd_option(opt, val, options, td);
78217dfa 1252 if (ret)
b1ec1da6 1253 dont_add_job = 1;
b4692828
JA
1254 break;
1255 }
1256 default:
b4692828 1257 break;
ebac4655
JA
1258 }
1259 }
c9fad893 1260
b4692828 1261 if (td) {
b1ec1da6 1262 if (dont_add_job)
b4692828 1263 put_job(td);
b1ec1da6
JA
1264 else {
1265 ret = add_job(td, td->name ?: "fio", 0);
1266 if (ret)
1267 put_job(td);
1268 }
972cfd25 1269 }
774a6177 1270
b4692828
JA
1271 while (optind < argc) {
1272 ini_idx++;
1273 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1274 ini_file[ini_idx - 1] = strdup(argv[optind]);
1275 optind++;
eb8bbf48 1276 }
972cfd25
JA
1277
1278 return ini_idx;
ebac4655
JA
1279}
1280
1281static void free_shm(void)
1282{
1283 struct shmid_ds sbuf;
1284
1285 if (threads) {
2c0ecd28 1286 shmdt((void *) threads);
ebac4655
JA
1287 threads = NULL;
1288 shmctl(shm_id, IPC_RMID, &sbuf);
1289 }
1290}
1291
906c8d75
JA
1292/*
1293 * The thread area is shared between the main process and the job
1294 * threads/processes. So setup a shared memory segment that will hold
1295 * all the job info.
1296 */
ebac4655
JA
1297static int setup_thread_area(void)
1298{
1299 /*
1300 * 1024 is too much on some machines, scale max_jobs if
1301 * we get a failure that looks like too large a shm segment
1302 */
1303 do {
906c8d75 1304 size_t size = max_jobs * sizeof(struct thread_data);
ebac4655 1305
906c8d75 1306 shm_id = shmget(0, size, IPC_CREAT | 0600);
ebac4655
JA
1307 if (shm_id != -1)
1308 break;
1309 if (errno != EINVAL) {
1310 perror("shmget");
1311 break;
1312 }
1313
1314 max_jobs >>= 1;
1315 } while (max_jobs);
1316
1317 if (shm_id == -1)
1318 return 1;
1319
1320 threads = shmat(shm_id, NULL, 0);
1321 if (threads == (void *) -1) {
1322 perror("shmat");
1323 return 1;
1324 }
1325
1326 atexit(free_shm);
1327 return 0;
1328}
1329
b4692828
JA
1330/*
1331 * Copy the fio options into the long options map, so we mirror
1332 * job and cmd line options.
1333 */
1334static void dupe_job_options(void)
1335{
1336 struct fio_option *o;
1337 unsigned int i;
1338
1339 i = 0;
1340 while (long_options[i].name)
1341 i++;
1342
1343 o = &options[0];
1344 while (o->name) {
1345 long_options[i].name = o->name;
1346 long_options[i].val = FIO_GETOPT_JOB;
1347 if (o->type == FIO_OPT_STR_SET)
1348 long_options[i].has_arg = no_argument;
1349 else
1350 long_options[i].has_arg = required_argument;
1351
1352 i++;
1353 o++;
1354 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1355 }
1356}
1357
ebac4655
JA
1358int parse_options(int argc, char *argv[])
1359{
972cfd25
JA
1360 int job_files, i;
1361
b4692828
JA
1362 f_out = stdout;
1363 f_err = stderr;
1364
13335ddb
JA
1365 options_init(options);
1366
b4692828
JA
1367 dupe_job_options();
1368
ebac4655
JA
1369 if (setup_thread_area())
1370 return 1;
1371 if (fill_def_thread())
1372 return 1;
1373
972cfd25 1374 job_files = parse_cmd_line(argc, argv);
ebac4655 1375
972cfd25
JA
1376 for (i = 0; i < job_files; i++) {
1377 if (fill_def_thread())
1378 return 1;
0c7e37a0 1379 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1380 return 1;
88c6ed80 1381 free(ini_file[i]);
972cfd25 1382 }
ebac4655 1383
88c6ed80 1384 free(ini_file);
b4692828
JA
1385
1386 if (!thread_number) {
1387 log_err("No jobs defined(s)\n");
b4692828
JA
1388 return 1;
1389 }
1390
ebac4655
JA
1391 return 0;
1392}