blob: 3d48467c8a488fa902788ffd60d2e8a67803c289 [file] [log] [blame]
Jens Axboe906c8d72006-06-13 09:37:56 +02001/*
Jens Axboecb2c86f2006-10-26 13:48:34 +02002 * This file contains job initialization and setup functions.
Jens Axboe906c8d72006-06-13 09:37:56 +02003 */
Jens Axboeebac4652005-12-08 15:25:21 +01004#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>
Jens Axboeb4692822006-10-27 13:43:22 +020011#include <getopt.h>
Jens Axboeebac4652005-12-08 15:25:21 +010012#include <sys/ipc.h>
13#include <sys/shm.h>
14#include <sys/types.h>
15#include <sys/stat.h>
16
17#include "fio.h"
Jens Axboecb2c86f2006-10-26 13:48:34 +020018#include "parse.h"
Jens Axboe2e5cdb12008-03-01 18:52:49 +010019#include "smalloc.h"
Jens Axboe380065a2008-03-01 18:56:24 +010020#include "filehash.h"
Jens Axboe4f5af7b2009-06-03 08:45:40 +020021#include "verify.h"
Jens Axboe79d16312010-03-04 12:43:20 +010022#include "profile.h"
Jens Axboeebac4652005-12-08 15:25:21 +010023
Jens Axboed3e829b2010-02-22 19:58:41 +010024static char fio_version_string[] = "fio 1.37";
Jens Axboe214e1ec2007-03-15 10:48:13 +010025
Jens Axboeee738492007-01-10 11:23:16 +010026#define FIO_RANDSEED (0xb1899bedUL)
Jens Axboeebac4652005-12-08 15:25:21 +010027
Jens Axboe214e1ec2007-03-15 10:48:13 +010028static char **ini_file;
29static int max_jobs = MAX_JOBS;
Jens Axboecca73aa2007-04-04 11:09:19 +020030static int dump_cmdline;
Jens Axboee1f36502006-10-27 10:54:08 +020031
Jens Axboebe4ecfd2008-12-08 14:10:52 +010032static struct thread_data def_thread;
Jens Axboe214e1ec2007-03-15 10:48:13 +010033struct thread_data *threads = NULL;
Jens Axboee1f36502006-10-27 10:54:08 +020034
Jens Axboe214e1ec2007-03-15 10:48:13 +010035int exitall_on_terminate = 0;
36int terse_output = 0;
Aaron Carrolle592a062007-09-14 09:49:41 +020037int eta_print;
Jens Axboe214e1ec2007-03-15 10:48:13 +010038unsigned long long mlock_size = 0;
39FILE *f_out = NULL;
40FILE *f_err = NULL;
Jens Axboe01f06b62008-02-18 20:53:47 +010041char *job_section = NULL;
Jens Axboe07b32322010-03-05 09:48:44 +010042char *exec_profile = NULL;
Jens Axboeee738492007-01-10 11:23:16 +010043
Jens Axboe214e1ec2007-03-15 10:48:13 +010044int write_bw_log = 0;
Jens Axboe4241ea82007-09-12 08:18:36 +020045int read_only = 0;
Jens Axboee1f36502006-10-27 10:54:08 +020046
Jens Axboe5ec10ea2008-03-06 15:42:00 +010047static int def_timeout;
48static int write_lat_log;
Jens Axboe214e1ec2007-03-15 10:48:13 +010049
50static int prev_group_jobs;
Jens Axboeb4692822006-10-27 13:43:22 +020051
Jens Axboeee56ad52008-02-01 10:30:20 +010052unsigned long fio_debug = 0;
Jens Axboe5e1d3062008-05-23 11:55:53 +020053unsigned int fio_debug_jobno = -1;
54unsigned int *fio_debug_jobp = NULL;
Jens Axboeee56ad52008-02-01 10:30:20 +010055
Jens Axboeb4692822006-10-27 13:43:22 +020056/*
57 * Command line options. These will contain the above, plus a few
58 * extra that only pertain to fio itself and not jobs.
59 */
Jens Axboe5ec10ea2008-03-06 15:42:00 +010060static struct option l_opts[FIO_NR_OPTIONS] = {
Jens Axboeb4692822006-10-27 13:43:22 +020061 {
62 .name = "output",
63 .has_arg = required_argument,
64 .val = 'o',
65 },
66 {
67 .name = "timeout",
68 .has_arg = required_argument,
69 .val = 't',
70 },
71 {
72 .name = "latency-log",
73 .has_arg = required_argument,
74 .val = 'l',
75 },
76 {
77 .name = "bandwidth-log",
78 .has_arg = required_argument,
79 .val = 'b',
80 },
81 {
82 .name = "minimal",
83 .has_arg = optional_argument,
84 .val = 'm',
85 },
86 {
87 .name = "version",
88 .has_arg = no_argument,
89 .val = 'v',
90 },
91 {
Jens Axboefd28ca42007-01-09 21:20:13 +010092 .name = "help",
93 .has_arg = no_argument,
94 .val = 'h',
95 },
96 {
97 .name = "cmdhelp",
Jens Axboe320beef2007-03-01 10:44:12 +010098 .has_arg = optional_argument,
Jens Axboefd28ca42007-01-09 21:20:13 +010099 .val = 'c',
100 },
101 {
Jens Axboecca73aa2007-04-04 11:09:19 +0200102 .name = "showcmd",
103 .has_arg = no_argument,
Jens Axboe724e4432007-09-11 20:02:05 +0200104 .val = 's',
105 },
106 {
107 .name = "readonly",
108 .has_arg = no_argument,
109 .val = 'r',
Jens Axboecca73aa2007-04-04 11:09:19 +0200110 },
111 {
Aaron Carrolle592a062007-09-14 09:49:41 +0200112 .name = "eta",
113 .has_arg = required_argument,
114 .val = 'e',
115 },
116 {
Jens Axboeee56ad52008-02-01 10:30:20 +0100117 .name = "debug",
118 .has_arg = required_argument,
119 .val = 'd',
120 },
121 {
Jens Axboe01f06b62008-02-18 20:53:47 +0100122 .name = "section",
123 .has_arg = required_argument,
124 .val = 'x',
125 },
126 {
Jens Axboe2b386d22008-03-26 10:32:57 +0100127 .name = "alloc-size",
128 .has_arg = required_argument,
129 .val = 'a',
130 },
131 {
Jens Axboe9ac8a792009-11-13 21:23:07 +0100132 .name = "profile",
133 .has_arg = required_argument,
134 .val = 'p',
135 },
136 {
Jens Axboeb4692822006-10-27 13:43:22 +0200137 .name = NULL,
138 },
139};
140
Joel Becker9728ce32007-03-01 08:24:39 +0100141FILE *get_f_out()
142{
143 return f_out;
144}
145
146FILE *get_f_err()
147{
148 return f_err;
149}
150
Jens Axboe906c8d72006-06-13 09:37:56 +0200151/*
152 * Return a free job structure.
153 */
Jens Axboeebac4652005-12-08 15:25:21 +0100154static struct thread_data *get_new_job(int global, struct thread_data *parent)
155{
156 struct thread_data *td;
157
158 if (global)
159 return &def_thread;
160 if (thread_number >= max_jobs)
161 return NULL;
162
163 td = &threads[thread_number++];
Jens Axboeddaeaa52006-06-08 11:00:58 +0200164 *td = *parent;
Jens Axboeebac4652005-12-08 15:25:21 +0100165
Jens Axboee0b0d892009-12-08 10:10:14 +0100166 td->o.uid = td->o.gid = -1U;
167
Jens Axboecade3ef2007-03-23 15:29:45 +0100168 dup_files(td, parent);
Jens Axboed23bb322007-03-23 15:57:56 +0100169 options_mem_dupe(td);
Jens Axboecade3ef2007-03-23 15:29:45 +0100170
Jens Axboe15dc1932010-03-05 10:59:06 +0100171 profile_add_hooks(td);
172
Jens Axboeebac4652005-12-08 15:25:21 +0100173 td->thread_number = thread_number;
Jens Axboeebac4652005-12-08 15:25:21 +0100174 return td;
175}
176
177static void put_job(struct thread_data *td)
178{
Jens Axboe549577a2006-10-30 12:23:41 +0100179 if (td == &def_thread)
180 return;
Jens Axboe58c55ba2010-03-09 12:20:08 +0100181
182 profile_td_exit(td);
Jens Axboe549577a2006-10-30 12:23:41 +0100183
Jens Axboe16edf252007-02-10 14:59:22 +0100184 if (td->error)
Jens Axboe6d861442007-03-15 09:22:23 +0100185 log_info("fio: %s\n", td->verror);
Jens Axboe16edf252007-02-10 14:59:22 +0100186
Jens Axboeebac4652005-12-08 15:25:21 +0100187 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
188 thread_number--;
189}
190
Jens Axboe581e7142009-06-09 12:47:16 +0200191static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
Jens Axboe127f6862007-03-15 12:09:57 +0100192{
Jens Axboe581e7142009-06-09 12:47:16 +0200193 unsigned int bs = td->o.min_bs[ddir];
Radha Ramachandranba3e4e02009-12-09 22:31:44 +0100194 unsigned long long bytes_per_sec;
Jens Axboe127f6862007-03-15 12:09:57 +0100195
Radha Ramachandranba3e4e02009-12-09 22:31:44 +0100196 if (td->o.rate[ddir])
197 bytes_per_sec = td->o.rate[ddir];
198 else
199 bytes_per_sec = td->o.rate_iops[ddir] * bs;
Jens Axboe127f6862007-03-15 12:09:57 +0100200
Radha Ramachandranba3e4e02009-12-09 22:31:44 +0100201 if (!bytes_per_sec) {
Jens Axboe127f6862007-03-15 12:09:57 +0100202 log_err("rate lower than supported\n");
203 return -1;
204 }
205
Radha Ramachandranba3e4e02009-12-09 22:31:44 +0100206 td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
Jens Axboe581e7142009-06-09 12:47:16 +0200207 td->rate_pending_usleep[ddir] = 0;
Jens Axboe127f6862007-03-15 12:09:57 +0100208 return 0;
209}
210
Jens Axboe581e7142009-06-09 12:47:16 +0200211static int setup_rate(struct thread_data *td)
212{
213 int ret = 0;
214
215 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
216 ret = __setup_rate(td, DDIR_READ);
217 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
218 ret |= __setup_rate(td, DDIR_WRITE);
219
220 return ret;
221}
222
Jens Axboe83472392009-02-19 21:32:12 +0100223static int fixed_block_size(struct thread_options *o)
224{
225 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
226 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
227 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
228}
229
Jens Axboedad915e2006-10-27 11:10:18 +0200230/*
231 * Lazy way of fixing up options that depend on each other. We could also
232 * define option callback handlers, but this is easier.
233 */
Jens Axboe4e991c22007-03-15 11:41:11 +0100234static int fixup_options(struct thread_data *td)
Jens Axboee1f36502006-10-27 10:54:08 +0200235{
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100236 struct thread_options *o = &td->o;
Jens Axboedad915e2006-10-27 11:10:18 +0200237
Jens Axboef356d012009-01-05 09:56:29 +0100238#ifndef FIO_HAVE_PSHARED_MUTEX
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100239 if (!o->use_thread) {
Jens Axboef356d012009-01-05 09:56:29 +0100240 log_info("fio: this platform does not support process shared"
241 " mutexes, forcing use of threads. Use the 'thread'"
242 " option to get rid of this warning.\n");
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100243 o->use_thread = 1;
Jens Axboef356d012009-01-05 09:56:29 +0100244 }
245#endif
246
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100247 if (o->write_iolog_file && o->read_iolog_file) {
Jens Axboe076efc72006-10-27 11:24:25 +0200248 log_err("fio: read iolog overrides write_iolog\n");
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100249 free(o->write_iolog_file);
250 o->write_iolog_file = NULL;
Jens Axboe076efc72006-10-27 11:24:25 +0200251 }
Jens Axboe16b462a2006-10-30 12:35:18 +0100252
Jens Axboe16b462a2006-10-30 12:35:18 +0100253 /*
254 * only really works for sequential io for now, and with 1 file
255 */
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100256 if (o->zone_size && td_random(td) && o->open_files == 1)
257 o->zone_size = 0;
Jens Axboe16b462a2006-10-30 12:35:18 +0100258
259 /*
260 * Reads can do overwrites, we always need to pre-create the file
261 */
262 if (td_read(td) || td_rw(td))
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100263 o->overwrite = 1;
Jens Axboe16b462a2006-10-30 12:35:18 +0100264
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100265 if (!o->min_bs[DDIR_READ])
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100266 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100267 if (!o->max_bs[DDIR_READ])
268 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
269 if (!o->min_bs[DDIR_WRITE])
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100270 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100271 if (!o->max_bs[DDIR_WRITE])
272 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
Jens Axboea00735e2006-11-03 08:58:08 +0100273
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100274 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
Jens Axboea00735e2006-11-03 08:58:08 +0100275
Jens Axboe2b7a01d2009-03-11 11:00:13 +0100276 /*
277 * For random IO, allow blockalign offset other than min_bs.
278 */
279 if (!o->ba[DDIR_READ] || !td_random(td))
280 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
281 if (!o->ba[DDIR_WRITE] || !td_random(td))
282 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
283
284 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
285 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100286 !o->norandommap) {
Jens Axboe2b7a01d2009-03-11 11:00:13 +0100287 log_err("fio: Any use of blockalign= turns off randommap\n");
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100288 o->norandommap = 1;
Jens Axboe2b7a01d2009-03-11 11:00:13 +0100289 }
290
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100291 if (!o->file_size_high)
292 o->file_size_high = o->file_size_low;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100293
Jens Axboe83472392009-02-19 21:32:12 +0100294 if (o->norandommap && o->verify != VERIFY_NONE
295 && !fixed_block_size(o)) {
296 log_err("fio: norandommap given for variable block sizes, "
297 "verify disabled\n");
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100298 o->verify = VERIFY_NONE;
Jens Axboebb8895e2006-10-30 15:14:48 +0100299 }
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100300 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
Jens Axboe690adba2006-10-30 15:25:09 +0100301 log_err("fio: bs_unaligned may not work with raw io\n");
Jens Axboee0a22332006-12-20 12:54:25 +0100302
303 /*
Jens Axboe48097d52007-02-17 06:30:44 +0100304 * thinktime_spin must be less than thinktime
305 */
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100306 if (o->thinktime_spin > o->thinktime)
307 o->thinktime_spin = o->thinktime;
Jens Axboee916b392007-02-20 14:37:26 +0100308
309 /*
310 * The low water mark cannot be bigger than the iodepth
311 */
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100312 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
Jens Axboe9467b772007-02-27 19:56:43 +0100313 /*
314 * syslet work around - if the workload is sequential,
315 * we want to let the queue drain all the way down to
316 * avoid seeking between async threads
317 */
318 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100319 o->iodepth_low = 1;
Jens Axboe9467b772007-02-27 19:56:43 +0100320 else
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100321 o->iodepth_low = o->iodepth;
Jens Axboe9467b772007-02-27 19:56:43 +0100322 }
Jens Axboecb5ab512007-02-26 12:57:09 +0100323
324 /*
325 * If batch number isn't set, default to the same as iodepth
326 */
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100327 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
328 o->iodepth_batch = o->iodepth;
Jens Axboeb5af8292007-03-08 12:43:13 +0100329
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100330 if (o->nr_files > td->files_index)
331 o->nr_files = td->files_index;
Jens Axboe9f9214f2007-03-13 14:02:16 +0100332
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100333 if (o->open_files > o->nr_files || !o->open_files)
334 o->open_files = o->nr_files;
Jens Axboe4e991c22007-03-15 11:41:11 +0100335
Jens Axboe581e7142009-06-09 12:47:16 +0200336 if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
337 ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
338 o->rate_iops_min[1]))) {
Jens Axboe4e991c22007-03-15 11:41:11 +0100339 log_err("fio: rate and rate_iops are mutually exclusive\n");
340 return 1;
341 }
Jens Axboe581e7142009-06-09 12:47:16 +0200342 if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
343 (o->rate_iops[0] < o->rate_iops_min[0]) ||
344 (o->rate_iops[1] < o->rate_iops_min[1])) {
Jens Axboe4e991c22007-03-15 11:41:11 +0100345 log_err("fio: minimum rate exceeds rate\n");
346 return 1;
347 }
348
Jens Axboecf4464c2007-04-17 20:14:42 +0200349 if (!o->timeout && o->time_based) {
350 log_err("fio: time_based requires a runtime/timeout setting\n");
351 o->time_based = 0;
352 }
353
Shawn Lewisaa31f1f2008-01-11 09:45:11 +0100354 if (o->fill_device && !o->size)
Jens Axboe5921e802008-05-30 15:02:38 +0200355 o->size = -1ULL;
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100356
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100357 if (td_rw(td) && o->verify != VERIFY_NONE)
Jens Axboe79713142008-02-06 14:40:14 +0100358 log_info("fio: mixed read/write workload with verify. May not "
359 "work as expected, unless you pre-populated the file\n");
Shawn Lewisaa31f1f2008-01-11 09:45:11 +0100360
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100361 if (o->verify != VERIFY_NONE) {
362 o->refill_buffers = 1;
Jens Axboed9905882010-03-18 20:43:00 +0100363 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
364 !o->verify_interval)
365 o->verify_interval = o->min_bs[DDIR_WRITE];
366 }
Jens Axboe41ccd842008-05-22 09:17:33 +0200367
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100368 if (o->pre_read) {
369 o->invalidate_cache = 0;
Jens Axboe9c0d2242009-07-01 12:26:28 +0200370 if (td->io_ops->flags & FIO_PIPEIO)
371 log_info("fio: cannot pre-read files with an IO engine"
372 " that isn't seekable. Pre-read disabled.\n");
373 }
Jens Axboe34f1c042009-06-02 14:19:25 +0200374
Joshua Aunee72fa4d2010-02-11 00:59:18 -0700375#ifndef FIO_HAVE_FDATASYNC
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100376 if (o->fdatasync_blocks) {
Joshua Aunee72fa4d2010-02-11 00:59:18 -0700377 log_info("fio: this platform does not support fdatasync()"
378 " falling back to using fsync(). Use the 'fsync'"
379 " option instead of 'fdatasync' to get rid of"
380 " this warning\n");
Jens Axboe9bbf57c2010-03-18 20:45:43 +0100381 o->fsync_blocks = o->fdatasync_blocks;
382 o->fdatasync_blocks = 0;
Joshua Aunee72fa4d2010-02-11 00:59:18 -0700383 }
384#endif
385
Jens Axboe4e991c22007-03-15 11:41:11 +0100386 return 0;
Jens Axboee1f36502006-10-27 10:54:08 +0200387}
388
Jens Axboe906c8d72006-06-13 09:37:56 +0200389/*
Jens Axboef8977ee2006-11-06 14:03:03 +0100390 * This function leaks the buffer
391 */
392static char *to_kmg(unsigned int val)
393{
394 char *buf = malloc(32);
Jens Axboef3502ba2007-02-14 01:27:09 +0100395 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
Jens Axboef8977ee2006-11-06 14:03:03 +0100396 char *p = post;
397
Jens Axboe245142f2006-11-08 12:49:21 +0100398 do {
Jens Axboef8977ee2006-11-06 14:03:03 +0100399 if (val & 1023)
400 break;
401
402 val >>= 10;
403 p++;
Jens Axboe245142f2006-11-08 12:49:21 +0100404 } while (*p);
Jens Axboef8977ee2006-11-06 14:03:03 +0100405
406 snprintf(buf, 31, "%u%c", val, *p);
407 return buf;
408}
409
Jens Axboe09629a92007-03-09 09:00:06 +0100410/* External engines are specified by "external:name.o") */
411static const char *get_engine_name(const char *str)
412{
413 char *p = strstr(str, ":");
414
415 if (!p)
416 return str;
417
418 p++;
419 strip_blank_front(&p);
420 strip_blank_end(p);
421 return p;
422}
423
Jens Axboee132cba2007-03-14 14:23:54 +0100424static int exists_and_not_file(const char *filename)
425{
426 struct stat sb;
427
428 if (lstat(filename, &sb) == -1)
429 return 0;
430
431 if (S_ISREG(sb.st_mode))
432 return 0;
433
434 return 1;
435}
436
Jens Axboe5bfc35d2009-04-07 13:28:12 +0200437void td_fill_rand_seeds(struct thread_data *td)
438{
439 os_random_seed(td->rand_seeds[0], &td->bsrange_state);
440 os_random_seed(td->rand_seeds[1], &td->verify_state);
441 os_random_seed(td->rand_seeds[2], &td->rwmix_state);
442
443 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
444 os_random_seed(td->rand_seeds[3], &td->next_file_state);
445
446 os_random_seed(td->rand_seeds[5], &td->file_size_state);
447
448 if (!td_random(td))
449 return;
450
451 if (td->o.rand_repeatable)
452 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
453
454 os_random_seed(td->rand_seeds[4], &td->random_state);
455}
456
Jens Axboef8977ee2006-11-06 14:03:03 +0100457/*
Jens Axboe9c60ce62007-03-15 09:14:47 +0100458 * Initialize the various random states we need (random io, block size ranges,
459 * read/write mix, etc).
460 */
461static int init_random_state(struct thread_data *td)
462{
Jens Axboe68727072007-03-15 20:49:25 +0100463 int fd;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100464
465 fd = open("/dev/urandom", O_RDONLY);
466 if (fd == -1) {
467 td_verror(td, errno, "open");
468 return 1;
469 }
470
Jens Axboe5bfc35d2009-04-07 13:28:12 +0200471 if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
472 (int) sizeof(td->rand_seeds)) {
Jens Axboe9c60ce62007-03-15 09:14:47 +0100473 td_verror(td, EIO, "read");
474 close(fd);
475 return 1;
476 }
477
478 close(fd);
Jens Axboe5bfc35d2009-04-07 13:28:12 +0200479 td_fill_rand_seeds(td);
Jens Axboe9c60ce62007-03-15 09:14:47 +0100480 return 0;
481}
482
Jens Axboe9c60ce62007-03-15 09:14:47 +0100483/*
Jens Axboe906c8d72006-06-13 09:37:56 +0200484 * Adds a job to the list of things todo. Sanitizes the various options
485 * to make sure we don't have conflicts, and initializes various
486 * members of td.
487 */
Jens Axboe75154842006-06-01 13:56:09 +0200488static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
Jens Axboeebac4652005-12-08 15:25:21 +0100489{
Jens Axboe413dd452007-02-23 09:26:09 +0100490 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
491 "randread", "randwrite", "randrw" };
Jens Axboeaf52b342007-03-13 10:07:47 +0100492 unsigned int i;
Jens Axboe09629a92007-03-09 09:00:06 +0100493 const char *engine;
Jens Axboeaf52b342007-03-13 10:07:47 +0100494 char fname[PATH_MAX];
Jens Axboee132cba2007-03-14 14:23:54 +0100495 int numjobs, file_alloced;
Jens Axboeebac4652005-12-08 15:25:21 +0100496
Jens Axboeebac4652005-12-08 15:25:21 +0100497 /*
498 * the def_thread is just for options, it's not a real job
499 */
500 if (td == &def_thread)
501 return 0;
502
Jens Axboecca73aa2007-04-04 11:09:19 +0200503 /*
504 * if we are just dumping the output command line, don't add the job
505 */
506 if (dump_cmdline) {
507 put_job(td);
508 return 0;
509 }
510
Jens Axboe58c55ba2010-03-09 12:20:08 +0100511 if (profile_td_init(td))
512 return 1;
513
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100514 engine = get_engine_name(td->o.ioengine);
Jens Axboe09629a92007-03-09 09:00:06 +0100515 td->io_ops = load_ioengine(td, engine);
516 if (!td->io_ops) {
517 log_err("fio: failed to load engine %s\n", engine);
Jens Axboe205927a2007-03-15 11:06:32 +0100518 goto err;
Jens Axboe09629a92007-03-09 09:00:06 +0100519 }
Jens Axboedf641192006-10-12 07:55:41 +0200520
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100521 if (td->o.use_thread)
Jens Axboe9cedf162007-03-12 11:29:30 +0100522 nr_thread++;
523 else
524 nr_process++;
525
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100526 if (td->o.odirect)
Jens Axboe690adba2006-10-30 15:25:09 +0100527 td->io_ops->flags |= FIO_RAWIO;
528
Jens Axboee132cba2007-03-14 14:23:54 +0100529 file_alloced = 0;
Jens Axboe691c8fb2008-03-07 14:26:26 +0100530 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
Jens Axboee132cba2007-03-14 14:23:54 +0100531 file_alloced = 1;
Jens Axboe80be24f2007-03-12 11:01:25 +0100532
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100533 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
Jens Axboee132cba2007-03-14 14:23:54 +0100534 add_file(td, jobname);
Jens Axboe7b05a212007-03-13 11:17:07 +0100535 else {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100536 for (i = 0; i < td->o.nr_files; i++) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100537 sprintf(fname, "%s.%d.%d", jobname,
538 td->thread_number, i);
Jens Axboe7b05a212007-03-13 11:17:07 +0100539 add_file(td, fname);
540 }
Jens Axboeaf52b342007-03-13 10:07:47 +0100541 }
Jens Axboe0af7b542006-02-17 10:10:12 +0100542 }
Jens Axboeebac4652005-12-08 15:25:21 +0100543
Jens Axboe4e991c22007-03-15 11:41:11 +0100544 if (fixup_options(td))
545 goto err;
Jens Axboee0a22332006-12-20 12:54:25 +0100546
Jens Axboe07eb79d2007-04-12 13:02:38 +0200547 if (td->io_ops->flags & FIO_DISKLESSIO) {
548 struct fio_file *f;
549
550 for_each_file(td, f, i)
551 f->real_file_size = -1ULL;
552 }
553
Jens Axboecdd18ad2008-02-27 18:58:00 +0100554 td->mutex = fio_mutex_init(0);
Jens Axboeebac4652005-12-08 15:25:21 +0100555
Jens Axboe756867b2007-03-06 15:19:24 +0100556 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
557 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
558 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
Jens Axboe1e3d53a2007-03-22 19:01:48 +0100559 td->ddir_nr = td->o.ddir_nr;
Jens Axboeebac4652005-12-08 15:25:21 +0100560
Jens Axboe755c3182009-08-25 22:14:29 +0200561 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
Jens Axboe3c5df6f2007-03-12 15:09:24 +0100562 prev_group_jobs = 0;
Jens Axboeebac4652005-12-08 15:25:21 +0100563 groupid++;
Jens Axboe3c5df6f2007-03-12 15:09:24 +0100564 }
Jens Axboeebac4652005-12-08 15:25:21 +0100565
566 td->groupid = groupid;
Jens Axboe3c5df6f2007-03-12 15:09:24 +0100567 prev_group_jobs++;
Jens Axboeebac4652005-12-08 15:25:21 +0100568
Jens Axboe9c60ce62007-03-15 09:14:47 +0100569 if (init_random_state(td))
570 goto err;
571
Jens Axboeebac4652005-12-08 15:25:21 +0100572 if (setup_rate(td))
573 goto err;
574
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100575 if (td->o.write_lat_log) {
Jens Axboe756867b2007-03-06 15:19:24 +0100576 setup_log(&td->ts.slat_log);
577 setup_log(&td->ts.clat_log);
Jens Axboeebac4652005-12-08 15:25:21 +0100578 }
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100579 if (td->o.write_bw_log)
Jens Axboe756867b2007-03-06 15:19:24 +0100580 setup_log(&td->ts.bw_log);
Jens Axboeebac4652005-12-08 15:25:21 +0100581
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100582 if (!td->o.name)
583 td->o.name = strdup(jobname);
Jens Axboe01452052006-06-07 10:29:47 +0200584
Jens Axboec6ae0a52006-06-12 11:04:44 +0200585 if (!terse_output) {
Jens Axboeb990b5c2006-09-14 09:48:22 +0200586 if (!job_add_num) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100587 if (!strcmp(td->io_ops->name, "cpuio")) {
588 log_info("%s: ioengine=cpu, cpuload=%u,"
589 " cpucycle=%u\n", td->o.name,
590 td->o.cpuload,
591 td->o.cpucycle);
592 } else {
Jens Axboef8977ee2006-11-06 14:03:03 +0100593 char *c1, *c2, *c3, *c4;
594
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100595 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
596 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
597 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
598 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
Jens Axboef8977ee2006-11-06 14:03:03 +0100599
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100600 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
601 " ioengine=%s, iodepth=%u\n",
602 td->o.name, td->groupid,
603 ddir_str[td->o.td_ddir],
604 c1, c2, c3, c4,
605 td->io_ops->name,
606 td->o.iodepth);
Jens Axboef8977ee2006-11-06 14:03:03 +0100607
608 free(c1);
609 free(c2);
610 free(c3);
611 free(c4);
612 }
Jens Axboeb990b5c2006-09-14 09:48:22 +0200613 } else if (job_add_num == 1)
Jens Axboe6d861442007-03-15 09:22:23 +0100614 log_info("...\n");
Jens Axboec6ae0a52006-06-12 11:04:44 +0200615 }
Jens Axboeebac4652005-12-08 15:25:21 +0100616
617 /*
618 * recurse add identical jobs, clear numjobs and stonewall options
619 * as they don't apply to sub-jobs
620 */
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100621 numjobs = td->o.numjobs;
Jens Axboeebac4652005-12-08 15:25:21 +0100622 while (--numjobs) {
623 struct thread_data *td_new = get_new_job(0, td);
624
625 if (!td_new)
626 goto err;
627
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100628 td_new->o.numjobs = 1;
629 td_new->o.stonewall = 0;
Jens Axboe92c1d412007-03-28 10:04:08 +0200630 td_new->o.new_group = 0;
Jens Axboee132cba2007-03-14 14:23:54 +0100631
632 if (file_alloced) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100633 td_new->o.filename = NULL;
Jens Axboee132cba2007-03-14 14:23:54 +0100634 td_new->files_index = 0;
Jens Axboe4e6ea2f2009-03-04 20:17:22 +0100635 td_new->files_size = 0;
Jens Axboee132cba2007-03-14 14:23:54 +0100636 td_new->files = NULL;
637 }
638
Jens Axboe75154842006-06-01 13:56:09 +0200639 job_add_num = numjobs - 1;
Jens Axboeebac4652005-12-08 15:25:21 +0100640
Jens Axboe75154842006-06-01 13:56:09 +0200641 if (add_job(td_new, jobname, job_add_num))
Jens Axboeebac4652005-12-08 15:25:21 +0100642 goto err;
643 }
Jens Axboe3c5df6f2007-03-12 15:09:24 +0100644
Jens Axboeebac4652005-12-08 15:25:21 +0100645 return 0;
646err:
647 put_job(td);
648 return -1;
649}
650
Jens Axboe79d16312010-03-04 12:43:20 +0100651/*
652 * Parse as if 'o' was a command line
653 */
654void add_job_opts(const char **o)
655{
656 struct thread_data *td, *td_parent;
657 int i, in_global = 1;
658 char jobname[32];
659
660 i = 0;
661 td_parent = td = NULL;
662 while (o[i]) {
663 if (!strncmp(o[i], "name", 4)) {
664 in_global = 0;
665 if (td)
666 add_job(td, jobname, 0);
667 td = NULL;
668 sprintf(jobname, "%s", o[i] + 5);
669 }
670 if (in_global && !td_parent)
671 td_parent = get_new_job(1, &def_thread);
672 else if (!in_global && !td) {
673 if (!td_parent)
674 td_parent = &def_thread;
675 td = get_new_job(0, td_parent);
676 }
677 if (in_global)
678 fio_options_parse(td_parent, (char **) &o[i], 1);
679 else
680 fio_options_parse(td, (char **) &o[i], 1);
681 i++;
682 }
683
684 if (td)
685 add_job(td, jobname, 0);
686}
687
Jens Axboe01f06b62008-02-18 20:53:47 +0100688static int skip_this_section(const char *name)
689{
690 if (!job_section)
691 return 0;
692 if (!strncmp(name, "global", 6))
693 return 0;
694
Jens Axboeb36beb62009-03-05 21:14:21 +0100695 return strcmp(job_section, name);
Jens Axboe01f06b62008-02-18 20:53:47 +0100696}
697
Jens Axboeebac4652005-12-08 15:25:21 +0100698static int is_empty_or_comment(char *line)
699{
700 unsigned int i;
701
702 for (i = 0; i < strlen(line); i++) {
703 if (line[i] == ';')
704 return 1;
Ingo Molnar5cc2da32007-02-20 10:19:44 +0100705 if (line[i] == '#')
706 return 1;
Jens Axboeebac4652005-12-08 15:25:21 +0100707 if (!isspace(line[i]) && !iscntrl(line[i]))
708 return 0;
709 }
710
711 return 1;
712}
713
Jens Axboe313cb202006-12-21 09:50:00 +0100714/*
Jens Axboe07261982006-06-07 10:51:12 +0200715 * This is our [ini] type file parser.
716 */
Jens Axboe1e97cce2006-12-05 11:44:16 +0100717static int parse_jobs_ini(char *file, int stonewall_flag)
Jens Axboeebac4652005-12-08 15:25:21 +0100718{
Jens Axboee1f36502006-10-27 10:54:08 +0200719 unsigned int global;
Jens Axboeebac4652005-12-08 15:25:21 +0100720 struct thread_data *td;
Jens Axboefee3bb42006-10-30 13:32:08 +0100721 char *string, *name;
Jens Axboeebac4652005-12-08 15:25:21 +0100722 FILE *f;
723 char *p;
Jens Axboe0c7e37a2006-06-13 14:53:38 +0200724 int ret = 0, stonewall;
Jens Axboe097b2992007-04-19 09:41:45 +0200725 int first_sect = 1;
Jens Axboeccf8f122007-09-27 10:48:55 +0200726 int skip_fgets = 0;
Jens Axboe01f06b62008-02-18 20:53:47 +0100727 int inside_skip = 0;
Jens Axboe3b8b7132008-06-10 19:46:23 +0200728 char **opts;
729 int i, alloc_opts, num_opts;
Jens Axboeebac4652005-12-08 15:25:21 +0100730
Aaron Carroll5a729cb2007-09-27 09:03:55 +0200731 if (!strcmp(file, "-"))
732 f = stdin;
733 else
734 f = fopen(file, "r");
735
Jens Axboeebac4652005-12-08 15:25:21 +0100736 if (!f) {
Jens Axboeaea47d42006-05-26 19:27:29 +0200737 perror("fopen job file");
Jens Axboeebac4652005-12-08 15:25:21 +0100738 return 1;
739 }
740
741 string = malloc(4096);
Jens Axboe7f7e6e52007-07-19 14:50:05 +0200742
743 /*
744 * it's really 256 + small bit, 280 should suffice
745 */
746 name = malloc(280);
747 memset(name, 0, 280);
Jens Axboeebac4652005-12-08 15:25:21 +0100748
Jens Axboe3b8b7132008-06-10 19:46:23 +0200749 alloc_opts = 8;
750 opts = malloc(sizeof(char *) * alloc_opts);
Jens Axboeb7c63022008-06-11 11:47:56 +0200751 num_opts = 0;
Jens Axboe3b8b7132008-06-10 19:46:23 +0200752
Jens Axboe0c7e37a2006-06-13 14:53:38 +0200753 stonewall = stonewall_flag;
Jens Axboe7c124ac2006-10-30 13:36:52 +0100754 do {
Jens Axboeccf8f122007-09-27 10:48:55 +0200755 /*
756 * if skip_fgets is set, we already have loaded a line we
757 * haven't handled.
758 */
759 if (!skip_fgets) {
760 p = fgets(string, 4095, f);
761 if (!p)
762 break;
763 }
gurudas paicdc7f192007-03-29 10:10:56 +0200764
Jens Axboeccf8f122007-09-27 10:48:55 +0200765 skip_fgets = 0;
gurudas paicdc7f192007-03-29 10:10:56 +0200766 strip_blank_front(&p);
Jens Axboe6c7c7da2007-03-29 14:12:57 -0800767 strip_blank_end(p);
gurudas paicdc7f192007-03-29 10:10:56 +0200768
Jens Axboeebac4652005-12-08 15:25:21 +0100769 if (is_empty_or_comment(p))
770 continue;
Jens Axboe6c7c7da2007-03-29 14:12:57 -0800771 if (sscanf(p, "[%255s]", name) != 1) {
Jens Axboe01f06b62008-02-18 20:53:47 +0100772 if (inside_skip)
773 continue;
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100774 log_err("fio: option <%s> outside of [] job section\n",
775 p);
Jens Axboe088b4202007-07-19 14:53:01 +0200776 break;
Jens Axboe6c7c7da2007-03-29 14:12:57 -0800777 }
Jens Axboeebac4652005-12-08 15:25:21 +0100778
Jens Axboe01f06b62008-02-18 20:53:47 +0100779 if (skip_this_section(name)) {
780 inside_skip = 1;
781 continue;
782 } else
783 inside_skip = 0;
784
Jens Axboeebac4652005-12-08 15:25:21 +0100785 global = !strncmp(name, "global", 6);
786
787 name[strlen(name) - 1] = '\0';
788
Jens Axboecca73aa2007-04-04 11:09:19 +0200789 if (dump_cmdline) {
Jens Axboe097b2992007-04-19 09:41:45 +0200790 if (first_sect)
791 log_info("fio ");
Jens Axboecca73aa2007-04-04 11:09:19 +0200792 if (!global)
793 log_info("--name=%s ", name);
Jens Axboe097b2992007-04-19 09:41:45 +0200794 first_sect = 0;
Jens Axboecca73aa2007-04-04 11:09:19 +0200795 }
796
Jens Axboeebac4652005-12-08 15:25:21 +0100797 td = get_new_job(global, &def_thread);
Jens Axboe45410ac2006-06-07 11:10:39 +0200798 if (!td) {
799 ret = 1;
800 break;
801 }
Jens Axboeebac4652005-12-08 15:25:21 +0100802
Jens Axboe972cfd22006-06-09 11:08:56 +0200803 /*
804 * Seperate multiple job files by a stonewall
805 */
Jens Axboef9481912006-06-09 11:37:28 +0200806 if (!global && stonewall) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100807 td->o.stonewall = stonewall;
Jens Axboe972cfd22006-06-09 11:08:56 +0200808 stonewall = 0;
809 }
810
Jens Axboe3b8b7132008-06-10 19:46:23 +0200811 num_opts = 0;
812 memset(opts, 0, alloc_opts * sizeof(char *));
813
Jens Axboeebac4652005-12-08 15:25:21 +0100814 while ((p = fgets(string, 4096, f)) != NULL) {
815 if (is_empty_or_comment(p))
816 continue;
Jens Axboee1f36502006-10-27 10:54:08 +0200817
Jens Axboeb6754f92006-05-30 14:29:32 +0200818 strip_blank_front(&p);
Jens Axboe7c124ac2006-10-30 13:36:52 +0100819
Jens Axboeccf8f122007-09-27 10:48:55 +0200820 /*
821 * new section, break out and make sure we don't
822 * fgets() a new line at the top.
823 */
824 if (p[0] == '[') {
825 skip_fgets = 1;
Jens Axboe7c124ac2006-10-30 13:36:52 +0100826 break;
Jens Axboeccf8f122007-09-27 10:48:55 +0200827 }
Jens Axboe7c124ac2006-10-30 13:36:52 +0100828
Jens Axboe4ae3f762006-05-30 13:35:14 +0200829 strip_blank_end(p);
Jens Axboeaea47d42006-05-26 19:27:29 +0200830
Jens Axboe3b8b7132008-06-10 19:46:23 +0200831 if (num_opts == alloc_opts) {
832 alloc_opts <<= 1;
833 opts = realloc(opts,
834 alloc_opts * sizeof(char *));
835 }
836
837 opts[num_opts] = strdup(p);
838 num_opts++;
Jens Axboeebac4652005-12-08 15:25:21 +0100839 }
Jens Axboeebac4652005-12-08 15:25:21 +0100840
Jens Axboe3b8b7132008-06-10 19:46:23 +0200841 ret = fio_options_parse(td, opts, num_opts);
842 if (!ret) {
843 if (dump_cmdline)
844 for (i = 0; i < num_opts; i++)
845 log_info("--%s ", opts[i]);
846
Jens Axboe45410ac2006-06-07 11:10:39 +0200847 ret = add_job(td, name, 0);
Jens Axboe3b8b7132008-06-10 19:46:23 +0200848 } else {
Jens Axboeb1508cf2006-11-02 09:12:40 +0100849 log_err("fio: job %s dropped\n", name);
850 put_job(td);
Jens Axboe45410ac2006-06-07 11:10:39 +0200851 }
Jens Axboe3b8b7132008-06-10 19:46:23 +0200852
853 for (i = 0; i < num_opts; i++)
854 free(opts[i]);
855 num_opts = 0;
Jens Axboe7c124ac2006-10-30 13:36:52 +0100856 } while (!ret);
Jens Axboeebac4652005-12-08 15:25:21 +0100857
Jens Axboecca73aa2007-04-04 11:09:19 +0200858 if (dump_cmdline)
859 log_info("\n");
860
Jens Axboe3b8b7132008-06-10 19:46:23 +0200861 for (i = 0; i < num_opts; i++)
862 free(opts[i]);
863
Jens Axboeebac4652005-12-08 15:25:21 +0100864 free(string);
865 free(name);
Jens Axboe25775942008-06-10 20:26:06 +0200866 free(opts);
Aaron Carroll5a729cb2007-09-27 09:03:55 +0200867 if (f != stdin)
868 fclose(f);
Jens Axboe45410ac2006-06-07 11:10:39 +0200869 return ret;
Jens Axboeebac4652005-12-08 15:25:21 +0100870}
871
872static int fill_def_thread(void)
873{
874 memset(&def_thread, 0, sizeof(def_thread));
875
Jens Axboe375b2692007-05-22 09:13:02 +0200876 fio_getaffinity(getpid(), &def_thread.o.cpumask);
Jens Axboeebac4652005-12-08 15:25:21 +0100877
878 /*
Jens Axboeee738492007-01-10 11:23:16 +0100879 * fill default options
Jens Axboeebac4652005-12-08 15:25:21 +0100880 */
Jens Axboe214e1ec2007-03-15 10:48:13 +0100881 fio_fill_default_options(&def_thread);
Jens Axboeee738492007-01-10 11:23:16 +0100882
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100883 def_thread.o.timeout = def_timeout;
884 def_thread.o.write_bw_log = write_bw_log;
885 def_thread.o.write_lat_log = write_lat_log;
Jens Axboeee738492007-01-10 11:23:16 +0100886
Jens Axboeebac4652005-12-08 15:25:21 +0100887 return 0;
888}
889
Jens Axboeebac4652005-12-08 15:25:21 +0100890static void free_shm(void)
891{
892 struct shmid_ds sbuf;
893
894 if (threads) {
Jens Axboe5e1d3062008-05-23 11:55:53 +0200895 void *tp = threads;
896
Jens Axboeebac4652005-12-08 15:25:21 +0100897 threads = NULL;
Jens Axboe5e1d3062008-05-23 11:55:53 +0200898 file_hash_exit();
899 fio_debug_jobp = NULL;
900 shmdt(tp);
Jens Axboeebac4652005-12-08 15:25:21 +0100901 shmctl(shm_id, IPC_RMID, &sbuf);
902 }
Jens Axboe2e5cdb12008-03-01 18:52:49 +0100903
904 scleanup();
Jens Axboeebac4652005-12-08 15:25:21 +0100905}
906
Jens Axboe906c8d72006-06-13 09:37:56 +0200907/*
908 * The thread area is shared between the main process and the job
909 * threads/processes. So setup a shared memory segment that will hold
Jens Axboe380065a2008-03-01 18:56:24 +0100910 * all the job info. We use the end of the region for keeping track of
911 * open files across jobs, for file sharing.
Jens Axboe906c8d72006-06-13 09:37:56 +0200912 */
Jens Axboeebac4652005-12-08 15:25:21 +0100913static int setup_thread_area(void)
914{
Jens Axboe380065a2008-03-01 18:56:24 +0100915 void *hash;
916
Jens Axboeebac4652005-12-08 15:25:21 +0100917 /*
918 * 1024 is too much on some machines, scale max_jobs if
919 * we get a failure that looks like too large a shm segment
920 */
921 do {
Jens Axboe906c8d72006-06-13 09:37:56 +0200922 size_t size = max_jobs * sizeof(struct thread_data);
Jens Axboeebac4652005-12-08 15:25:21 +0100923
Jens Axboe380065a2008-03-01 18:56:24 +0100924 size += file_hash_size;
Jens Axboe5e1d3062008-05-23 11:55:53 +0200925 size += sizeof(unsigned int);
Jens Axboe380065a2008-03-01 18:56:24 +0100926
Jens Axboe906c8d72006-06-13 09:37:56 +0200927 shm_id = shmget(0, size, IPC_CREAT | 0600);
Jens Axboeebac4652005-12-08 15:25:21 +0100928 if (shm_id != -1)
929 break;
930 if (errno != EINVAL) {
931 perror("shmget");
932 break;
933 }
934
935 max_jobs >>= 1;
936 } while (max_jobs);
937
938 if (shm_id == -1)
939 return 1;
940
941 threads = shmat(shm_id, NULL, 0);
942 if (threads == (void *) -1) {
943 perror("shmat");
944 return 1;
945 }
946
Jens Axboe1f809d12007-10-25 18:34:02 +0200947 memset(threads, 0, max_jobs * sizeof(struct thread_data));
Jens Axboe380065a2008-03-01 18:56:24 +0100948 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
Jens Axboe5e1d3062008-05-23 11:55:53 +0200949 fio_debug_jobp = (void *) hash + file_hash_size;
950 *fio_debug_jobp = -1;
Jens Axboe380065a2008-03-01 18:56:24 +0100951 file_hash_init(hash);
Jens Axboeebac4652005-12-08 15:25:21 +0100952 atexit(free_shm);
953 return 0;
954}
955
Jens Axboe45378b32007-12-19 13:54:38 +0100956static void usage(const char *name)
Jens Axboeb4692822006-10-27 13:43:22 +0200957{
Jens Axboe214e1ec2007-03-15 10:48:13 +0100958 printf("%s\n", fio_version_string);
Jens Axboe45378b32007-12-19 13:54:38 +0100959 printf("%s [options] [job options] <job file(s)>\n", name);
Jens Axboeee56ad52008-02-01 10:30:20 +0100960 printf("\t--debug=options\tEnable debug logging\n");
Jens Axboe214e1ec2007-03-15 10:48:13 +0100961 printf("\t--output\tWrite output to file\n");
962 printf("\t--timeout\tRuntime in seconds\n");
963 printf("\t--latency-log\tGenerate per-job latency logs\n");
964 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
965 printf("\t--minimal\tMinimal (terse) output\n");
966 printf("\t--version\tPrint version info and exit\n");
967 printf("\t--help\t\tPrint this page\n");
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100968 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
969 " them\n");
Jens Axboecca73aa2007-04-04 11:09:19 +0200970 printf("\t--showcmd\tTurn a job file into command line options\n");
Aaron Carrolle592a062007-09-14 09:49:41 +0200971 printf("\t--eta=when\tWhen ETA estimate should be printed\n");
972 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n");
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100973 printf("\t--readonly\tTurn on safety read-only checks, preventing"
974 " writes\n");
Jens Axboe01f06b62008-02-18 20:53:47 +0100975 printf("\t--section=name\tOnly run specified section in job file\n");
Jens Axboe2b386d22008-03-26 10:32:57 +0100976 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
977 " (def 1024)\n");
Jens Axboefd4442b2009-06-15 23:29:54 +0200978 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>\n");
Jens Axboeb4692822006-10-27 13:43:22 +0200979}
980
Jens Axboe79e48f72008-02-01 20:37:09 +0100981#ifdef FIO_INC_DEBUG
Jens Axboeee56ad52008-02-01 10:30:20 +0100982struct debug_level debug_levels[] = {
Jens Axboebd6f78b2008-02-01 20:27:52 +0100983 { .name = "process", .shift = FD_PROCESS, },
984 { .name = "file", .shift = FD_FILE, },
985 { .name = "io", .shift = FD_IO, },
986 { .name = "mem", .shift = FD_MEM, },
987 { .name = "blktrace", .shift = FD_BLKTRACE },
988 { .name = "verify", .shift = FD_VERIFY },
Jens Axboe84422ac2008-02-19 20:10:26 +0100989 { .name = "random", .shift = FD_RANDOM },
Jens Axboea3d741f2008-02-27 18:32:33 +0100990 { .name = "parse", .shift = FD_PARSE },
Jens Axboecd991b92008-03-07 13:19:35 +0100991 { .name = "diskutil", .shift = FD_DISKUTIL },
Jens Axboe5e1d3062008-05-23 11:55:53 +0200992 { .name = "job", .shift = FD_JOB },
Jens Axboe29adda32009-01-05 19:06:39 +0100993 { .name = "mutex", .shift = FD_MUTEX },
Jens Axboe79d16312010-03-04 12:43:20 +0100994 { .name = "profile", .shift = FD_PROFILE },
Jens Axboe02444ad2008-10-07 11:33:00 +0200995 { .name = NULL, },
Jens Axboeee56ad52008-02-01 10:30:20 +0100996};
997
Jens Axboec09823a2008-02-19 20:16:57 +0100998static int set_debug(const char *string)
Jens Axboeee56ad52008-02-01 10:30:20 +0100999{
1000 struct debug_level *dl;
1001 char *p = (char *) string;
1002 char *opt;
1003 int i;
1004
1005 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1006 int i;
1007
1008 log_info("fio: dumping debug options:");
1009 for (i = 0; debug_levels[i].name; i++) {
1010 dl = &debug_levels[i];
1011 log_info("%s,", dl->name);
1012 }
Jens Axboebd6f78b2008-02-01 20:27:52 +01001013 log_info("all\n");
Jens Axboec09823a2008-02-19 20:16:57 +01001014 return 1;
Jens Axboeee56ad52008-02-01 10:30:20 +01001015 }
1016
1017 while ((opt = strsep(&p, ",")) != NULL) {
1018 int found = 0;
1019
Jens Axboe5e1d3062008-05-23 11:55:53 +02001020 if (!strncmp(opt, "all", 3)) {
1021 log_info("fio: set all debug options\n");
1022 fio_debug = ~0UL;
1023 continue;
1024 }
1025
Jens Axboeee56ad52008-02-01 10:30:20 +01001026 for (i = 0; debug_levels[i].name; i++) {
1027 dl = &debug_levels[i];
Jens Axboe5e1d3062008-05-23 11:55:53 +02001028 found = !strncmp(opt, dl->name, strlen(dl->name));
1029 if (!found)
1030 continue;
1031
1032 if (dl->shift == FD_JOB) {
1033 opt = strchr(opt, ':');
1034 if (!opt) {
1035 log_err("fio: missing job number\n");
1036 break;
1037 }
1038 opt++;
1039 fio_debug_jobno = atoi(opt);
1040 log_info("fio: set debug jobno %d\n",
1041 fio_debug_jobno);
1042 } else {
Jens Axboeee56ad52008-02-01 10:30:20 +01001043 log_info("fio: set debug option %s\n", opt);
Jens Axboebd6f78b2008-02-01 20:27:52 +01001044 fio_debug |= (1UL << dl->shift);
Jens Axboeee56ad52008-02-01 10:30:20 +01001045 }
Jens Axboe5e1d3062008-05-23 11:55:53 +02001046 break;
Jens Axboeee56ad52008-02-01 10:30:20 +01001047 }
1048
1049 if (!found)
1050 log_err("fio: debug mask %s not found\n", opt);
1051 }
Jens Axboec09823a2008-02-19 20:16:57 +01001052 return 0;
Jens Axboeee56ad52008-02-01 10:30:20 +01001053}
Jens Axboe79e48f72008-02-01 20:37:09 +01001054#else
Jens Axboe69b98d42008-05-30 22:25:32 +02001055static int set_debug(const char *string)
Jens Axboe79e48f72008-02-01 20:37:09 +01001056{
1057 log_err("fio: debug tracing not included in build\n");
Jens Axboec09823a2008-02-19 20:16:57 +01001058 return 1;
Jens Axboe79e48f72008-02-01 20:37:09 +01001059}
1060#endif
Jens Axboeee56ad52008-02-01 10:30:20 +01001061
Jens Axboe214e1ec2007-03-15 10:48:13 +01001062static int parse_cmd_line(int argc, char *argv[])
1063{
1064 struct thread_data *td = NULL;
Jens Axboec09823a2008-02-19 20:16:57 +01001065 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001066
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001067 while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) {
Jens Axboe214e1ec2007-03-15 10:48:13 +01001068 switch (c) {
Jens Axboe2b386d22008-03-26 10:32:57 +01001069 case 'a':
1070 smalloc_pool_size = atoi(optarg);
1071 break;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001072 case 't':
1073 def_timeout = atoi(optarg);
1074 break;
1075 case 'l':
1076 write_lat_log = 1;
1077 break;
1078 case 'w':
1079 write_bw_log = 1;
1080 break;
1081 case 'o':
1082 f_out = fopen(optarg, "w+");
1083 if (!f_out) {
1084 perror("fopen output");
1085 exit(1);
1086 }
1087 f_err = f_out;
1088 break;
1089 case 'm':
1090 terse_output = 1;
1091 break;
1092 case 'h':
Jens Axboe45378b32007-12-19 13:54:38 +01001093 usage(argv[0]);
Jens Axboe214e1ec2007-03-15 10:48:13 +01001094 exit(0);
1095 case 'c':
1096 exit(fio_show_option_help(optarg));
Jens Axboecca73aa2007-04-04 11:09:19 +02001097 case 's':
1098 dump_cmdline = 1;
1099 break;
Jens Axboe724e4432007-09-11 20:02:05 +02001100 case 'r':
1101 read_only = 1;
1102 break;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001103 case 'v':
1104 printf("%s\n", fio_version_string);
1105 exit(0);
Aaron Carrolle592a062007-09-14 09:49:41 +02001106 case 'e':
1107 if (!strcmp("always", optarg))
1108 eta_print = FIO_ETA_ALWAYS;
1109 else if (!strcmp("never", optarg))
1110 eta_print = FIO_ETA_NEVER;
1111 break;
Jens Axboeee56ad52008-02-01 10:30:20 +01001112 case 'd':
Jens Axboec09823a2008-02-19 20:16:57 +01001113 if (set_debug(optarg))
1114 do_exit++;
Jens Axboeee56ad52008-02-01 10:30:20 +01001115 break;
Jens Axboe01f06b62008-02-18 20:53:47 +01001116 case 'x':
1117 if (!strcmp(optarg, "global")) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001118 log_err("fio: can't use global as only "
1119 "section\n");
Jens Axboec09823a2008-02-19 20:16:57 +01001120 do_exit++;
1121 exit_val = 1;
Jens Axboe01f06b62008-02-18 20:53:47 +01001122 break;
1123 }
1124 if (job_section)
1125 free(job_section);
1126 job_section = strdup(optarg);
1127 break;
Jens Axboe9ac8a792009-11-13 21:23:07 +01001128 case 'p':
Jens Axboe07b32322010-03-05 09:48:44 +01001129 exec_profile = strdup(optarg);
Jens Axboe9ac8a792009-11-13 21:23:07 +01001130 break;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001131 case FIO_GETOPT_JOB: {
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001132 const char *opt = l_opts[lidx].name;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001133 char *val = optarg;
1134
1135 if (!strncmp(opt, "name", 4) && td) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001136 ret = add_job(td, td->o.name ?: "fio", 0);
Jens Axboe214e1ec2007-03-15 10:48:13 +01001137 if (ret) {
1138 put_job(td);
1139 return 0;
1140 }
1141 td = NULL;
1142 }
1143 if (!td) {
Jens Axboe01f06b62008-02-18 20:53:47 +01001144 int is_section = !strncmp(opt, "name", 4);
Jens Axboe3106f222007-04-19 09:53:28 +02001145 int global = 0;
1146
Jens Axboe01f06b62008-02-18 20:53:47 +01001147 if (!is_section || !strncmp(val, "global", 6))
Jens Axboe3106f222007-04-19 09:53:28 +02001148 global = 1;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001149
Jens Axboe01f06b62008-02-18 20:53:47 +01001150 if (is_section && skip_this_section(val))
1151 continue;
1152
Jens Axboe214e1ec2007-03-15 10:48:13 +01001153 td = get_new_job(global, &def_thread);
1154 if (!td)
1155 return 0;
1156 }
1157
1158 ret = fio_cmd_option_parse(td, opt, val);
Jens Axboe214e1ec2007-03-15 10:48:13 +01001159 break;
1160 }
1161 default:
Jens Axboec09823a2008-02-19 20:16:57 +01001162 do_exit++;
1163 exit_val = 1;
Jens Axboe214e1ec2007-03-15 10:48:13 +01001164 break;
1165 }
1166 }
1167
Jens Axboec09823a2008-02-19 20:16:57 +01001168 if (do_exit)
1169 exit(exit_val);
Jens Axboe536582b2008-02-18 20:26:32 +01001170
Jens Axboe214e1ec2007-03-15 10:48:13 +01001171 if (td) {
Jens Axboe7d6a8902008-02-18 20:59:18 +01001172 if (!ret)
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001173 ret = add_job(td, td->o.name ?: "fio", 0);
Jens Axboe7d6a8902008-02-18 20:59:18 +01001174 if (ret)
1175 put_job(td);
Jens Axboe214e1ec2007-03-15 10:48:13 +01001176 }
1177
1178 while (optind < argc) {
1179 ini_idx++;
1180 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1181 ini_file[ini_idx - 1] = strdup(argv[optind]);
1182 optind++;
1183 }
1184
1185 return ini_idx;
1186}
1187
Jens Axboeebac4652005-12-08 15:25:21 +01001188int parse_options(int argc, char *argv[])
1189{
Jens Axboe972cfd22006-06-09 11:08:56 +02001190 int job_files, i;
1191
Jens Axboeb4692822006-10-27 13:43:22 +02001192 f_out = stdout;
1193 f_err = stderr;
1194
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001195 fio_options_dup_and_init(l_opts);
Jens Axboeb4692822006-10-27 13:43:22 +02001196
Jens Axboeebac4652005-12-08 15:25:21 +01001197 if (setup_thread_area())
1198 return 1;
1199 if (fill_def_thread())
1200 return 1;
1201
Jens Axboe972cfd22006-06-09 11:08:56 +02001202 job_files = parse_cmd_line(argc, argv);
Jens Axboeebac4652005-12-08 15:25:21 +01001203
Jens Axboe972cfd22006-06-09 11:08:56 +02001204 for (i = 0; i < job_files; i++) {
1205 if (fill_def_thread())
1206 return 1;
Jens Axboe0c7e37a2006-06-13 14:53:38 +02001207 if (parse_jobs_ini(ini_file[i], i))
Jens Axboe972cfd22006-06-09 11:08:56 +02001208 return 1;
Jens Axboe88c6ed82006-06-09 11:28:10 +02001209 free(ini_file[i]);
Jens Axboe972cfd22006-06-09 11:08:56 +02001210 }
Jens Axboeebac4652005-12-08 15:25:21 +01001211
Jens Axboe88c6ed82006-06-09 11:28:10 +02001212 free(ini_file);
Jens Axboed23bb322007-03-23 15:57:56 +01001213 options_mem_free(&def_thread);
Jens Axboeb4692822006-10-27 13:43:22 +02001214
1215 if (!thread_number) {
Jens Axboecca73aa2007-04-04 11:09:19 +02001216 if (dump_cmdline)
1217 return 0;
Jens Axboe07b32322010-03-05 09:48:44 +01001218 if (exec_profile)
1219 return 0;
Jens Axboecca73aa2007-04-04 11:09:19 +02001220
Jens Axboefd4442b2009-06-15 23:29:54 +02001221 log_err("No jobs defined(s)\n\n");
Jens Axboe45378b32007-12-19 13:54:38 +01001222 usage(argv[0]);
Jens Axboeb4692822006-10-27 13:43:22 +02001223 return 1;
1224 }
1225
Jens Axboebe4ecfd2008-12-08 14:10:52 +01001226 if (def_thread.o.gtod_offload) {
1227 fio_gtod_init();
1228 fio_gtod_offload = 1;
1229 fio_gtod_cpu = def_thread.o.gtod_cpu;
1230 }
1231
Jens Axboeebac4652005-12-08 15:25:21 +01001232 return 0;
1233}