Commit | Line | Data |
---|---|---|
2e1df07d JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk> | |
6 | * | |
7 | * The license below covers all files distributed with fio unless otherwise | |
8 | * noted in the file itself. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
fa07eaa6 | 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
2e1df07d JA |
22 | * |
23 | */ | |
24 | ||
25 | #include <string.h> | |
59dfce57 | 26 | #include <signal.h> |
a569b45f JA |
27 | #include <stdint.h> |
28 | #include <locale.h> | |
4a851614 | 29 | #include <fcntl.h> |
a569b45f | 30 | |
2e1df07d | 31 | #include "fio.h" |
a569b45f JA |
32 | #include "smalloc.h" |
33 | #include "os/os.h" | |
243bfe19 | 34 | #include "filelock.h" |
a39fb9ea | 35 | #include "helper_thread.h" |
d619275c | 36 | #include "filehash.h" |
2e1df07d | 37 | |
a3efc919 | 38 | FLIST_HEAD(disk_list); |
a3efc919 JA |
39 | |
40 | unsigned long arch_flags = 0; | |
41 | ||
a569b45f JA |
42 | uintptr_t page_mask = 0; |
43 | uintptr_t page_size = 0; | |
44 | ||
c6da2c34 | 45 | /* see os/os.h */ |
2e1df07d JA |
46 | static const char *fio_os_strings[os_nr] = { |
47 | "Invalid", | |
48 | "Linux", | |
49 | "AIX", | |
50 | "FreeBSD", | |
51 | "HP-UX", | |
52 | "OSX", | |
53 | "NetBSD", | |
1c7eaa7b | 54 | "OpenBSD", |
2e1df07d | 55 | "Solaris", |
1c7eaa7b JA |
56 | "Windows", |
57 | "Android", | |
239b2882 | 58 | "DragonFly", |
2e1df07d JA |
59 | }; |
60 | ||
c6da2c34 | 61 | /* see arch/arch.h */ |
2e1df07d JA |
62 | static const char *fio_arch_strings[arch_nr] = { |
63 | "Invalid", | |
64 | "x86-64", | |
65 | "x86", | |
66 | "ppc", | |
67 | "ia64", | |
68 | "s390", | |
69 | "alpha", | |
70 | "sparc", | |
71 | "sparc64", | |
72 | "arm", | |
73 | "sh", | |
74 | "hppa", | |
c6da2c34 TK |
75 | "mips", |
76 | "aarch64", | |
9496e398 | 77 | "loongarch64", |
2e1df07d JA |
78 | "generic" |
79 | }; | |
80 | ||
ac28d905 | 81 | static void reset_io_counters(struct thread_data *td, int all) |
2e1df07d | 82 | { |
6eaf09d6 | 83 | int ddir; |
bcd5abfa | 84 | |
ac28d905 JA |
85 | if (all) { |
86 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { | |
87 | td->stat_io_bytes[ddir] = 0; | |
88 | td->this_io_bytes[ddir] = 0; | |
89 | td->stat_io_blocks[ddir] = 0; | |
90 | td->this_io_blocks[ddir] = 0; | |
f5204b8a | 91 | td->last_rate_check_bytes[ddir] = 0; |
92 | td->last_rate_check_blocks[ddir] = 0; | |
ac28d905 JA |
93 | td->bytes_done[ddir] = 0; |
94 | td->rate_io_issue_bytes[ddir] = 0; | |
95 | td->rate_next_io_time[ddir] = 0; | |
182cab24 | 96 | td->last_usec[ddir] = 0; |
ac28d905 | 97 | } |
191d6634 | 98 | td->bytes_verified = 0; |
6eaf09d6 | 99 | } |
ac28d905 | 100 | |
2e1df07d | 101 | td->zone_bytes = 0; |
2e1df07d | 102 | |
2ea93f98 | 103 | td->last_was_sync = false; |
bcd5abfa | 104 | td->rwmix_issues = 0; |
2e1df07d JA |
105 | |
106 | /* | |
107 | * reset file done count if we are to start over | |
108 | */ | |
336e3bfb | 109 | if (td->o.time_based || td->loops > 1 || td->o.do_verify) |
2e1df07d JA |
110 | td->nr_done_files = 0; |
111 | } | |
112 | ||
ac28d905 | 113 | void clear_io_state(struct thread_data *td, int all) |
2e1df07d JA |
114 | { |
115 | struct fio_file *f; | |
116 | unsigned int i; | |
117 | ||
ac28d905 | 118 | reset_io_counters(td, all); |
2e1df07d JA |
119 | |
120 | close_files(td); | |
ec803e97 | 121 | for_each_file(td, f, i) { |
2e1df07d | 122 | fio_file_clear_done(f); |
ec803e97 BF |
123 | f->file_offset = get_start_offset(td, f); |
124 | } | |
2e1df07d JA |
125 | |
126 | /* | |
1520f26e | 127 | * Re-Seed random number generator if rand_repeatable is true |
2e1df07d | 128 | */ |
1520f26e D |
129 | if (td->o.rand_repeatable) |
130 | td_fill_rand_seeds(td); | |
2e1df07d JA |
131 | } |
132 | ||
133 | void reset_all_stats(struct thread_data *td) | |
134 | { | |
cfc4ad2e | 135 | unsigned long long b; |
2e1df07d JA |
136 | int i; |
137 | ||
ac28d905 | 138 | reset_io_counters(td, 1); |
2e1df07d | 139 | |
cfc4ad2e | 140 | b = ddir_rw_sum(td->thinktime_blocks_counter); |
141 | td->last_thinktime_blocks -= b; | |
142 | ||
6eaf09d6 | 143 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
144 | td->io_bytes[i] = 0; |
145 | td->io_blocks[i] = 0; | |
146 | td->io_issues[i] = 0; | |
147 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 148 | td->ts.runtime[i] = 0; |
2e1df07d JA |
149 | } |
150 | ||
d5b3cfd4 | 151 | set_epoch_time(td, td->o.log_unix_epoch | td->o.log_alternate_epoch, td->o.log_alternate_epoch_clock_id); |
8b6a404c VF |
152 | memcpy(&td->start, &td->epoch, sizeof(td->epoch)); |
153 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
154 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); | |
155 | memcpy(&td->ss.prev_time, &td->epoch, sizeof(td->epoch)); | |
3e260a46 | 156 | |
cfc4ad2e | 157 | td->last_thinktime = td->epoch; |
158 | ||
6bb58215 | 159 | lat_target_reset(td); |
210dd0fc | 160 | clear_rusage_stat(td); |
a47591e4 | 161 | helper_reset(); |
2e1df07d JA |
162 | } |
163 | ||
164 | void reset_fio_state(void) | |
165 | { | |
2fbe1e19 JA |
166 | int i; |
167 | ||
2e1df07d JA |
168 | groupid = 0; |
169 | thread_number = 0; | |
2fbe1e19 JA |
170 | cur_segment = 0; |
171 | for (i = 0; i < nr_segments; i++) | |
172 | segments[i].nr_threads = 0; | |
2caefeec | 173 | stat_number = 0; |
2e1df07d JA |
174 | done_secs = 0; |
175 | } | |
176 | ||
177 | const char *fio_get_os_string(int nr) | |
178 | { | |
179 | if (nr < os_nr) | |
180 | return fio_os_strings[nr]; | |
181 | ||
182 | return NULL; | |
183 | } | |
184 | ||
185 | const char *fio_get_arch_string(int nr) | |
186 | { | |
187 | if (nr < arch_nr) | |
188 | return fio_arch_strings[nr]; | |
189 | ||
190 | return NULL; | |
191 | } | |
192 | ||
6e760cf3 JA |
193 | static const char *td_runstates[] = { |
194 | "NOT_CREATED", | |
195 | "CREATED", | |
196 | "INITIALIZED", | |
197 | "RAMP", | |
198 | "SETTING_UP", | |
199 | "RUNNING", | |
200 | "PRE_READING", | |
201 | "VERIFYING", | |
202 | "FSYNCING", | |
203 | "FINISHING", | |
204 | "EXITED", | |
205 | "REAPED", | |
206 | }; | |
207 | ||
9cc8cb91 | 208 | const char *runstate_to_name(int runstate) |
6e760cf3 JA |
209 | { |
210 | compiletime_assert(TD_LAST == 12, "td runstate list"); | |
211 | if (runstate >= 0 && runstate < TD_LAST) | |
212 | return td_runstates[runstate]; | |
213 | ||
214 | return "invalid"; | |
215 | } | |
216 | ||
2e1df07d JA |
217 | void td_set_runstate(struct thread_data *td, int runstate) |
218 | { | |
219 | if (td->runstate == runstate) | |
220 | return; | |
221 | ||
6e760cf3 JA |
222 | dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid, |
223 | runstate_to_name(td->runstate), | |
224 | runstate_to_name(runstate)); | |
2e1df07d JA |
225 | td->runstate = runstate; |
226 | } | |
227 | ||
8edd973d JA |
228 | int td_bump_runstate(struct thread_data *td, int new_state) |
229 | { | |
230 | int old_state = td->runstate; | |
231 | ||
232 | td_set_runstate(td, new_state); | |
233 | return old_state; | |
234 | } | |
235 | ||
236 | void td_restore_runstate(struct thread_data *td, int old_state) | |
237 | { | |
238 | td_set_runstate(td, old_state); | |
239 | } | |
240 | ||
ebea2133 JA |
241 | void fio_mark_td_terminate(struct thread_data *td) |
242 | { | |
243 | fio_gettime(&td->terminate_time, NULL); | |
244 | write_barrier(); | |
2ea93f98 | 245 | td->terminate = true; |
ebea2133 JA |
246 | } |
247 | ||
64402a8a | 248 | void fio_terminate_threads(unsigned int group_id, unsigned int terminate) |
2e1df07d | 249 | { |
41fa20ec | 250 | pid_t pid = getpid(); |
2e1df07d JA |
251 | |
252 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
253 | ||
da8f124f | 254 | for_each_td(td) { |
64402a8a HW |
255 | if ((terminate == TERMINATE_GROUP && group_id == TERMINATE_ALL) || |
256 | (terminate == TERMINATE_GROUP && group_id == td->groupid) || | |
257 | (terminate == TERMINATE_STONEWALL && td->runstate >= TD_RUNNING) || | |
258 | (terminate == TERMINATE_ALL)) { | |
2e1df07d JA |
259 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
260 | td->o.name, (int) td->pid); | |
cba5460c JA |
261 | |
262 | if (td->terminate) | |
263 | continue; | |
264 | ||
ebea2133 | 265 | fio_mark_td_terminate(td); |
2e1df07d JA |
266 | td->o.start_delay = 0; |
267 | ||
268 | /* | |
269 | * if the thread is running, just let it exit | |
270 | */ | |
36d80bc7 | 271 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
272 | continue; |
273 | else if (td->runstate < TD_RAMP) | |
274 | kill(td->pid, SIGTERM); | |
36d80bc7 | 275 | else { |
2e1df07d JA |
276 | struct ioengine_ops *ops = td->io_ops; |
277 | ||
36d80bc7 JA |
278 | if (ops && ops->terminate) |
279 | ops->terminate(td); | |
2e1df07d JA |
280 | } |
281 | } | |
da8f124f | 282 | } end_for_each(); |
2e1df07d JA |
283 | } |
284 | ||
046395d7 JA |
285 | int fio_running_or_pending_io_threads(void) |
286 | { | |
a691d82f | 287 | int nr_io_threads = 0; |
046395d7 | 288 | |
da8f124f | 289 | for_each_td(td) { |
356ef1a1 | 290 | if (td->io_ops_init && td_ioengine_flagged(td, FIO_NOIO)) |
046395d7 | 291 | continue; |
a691d82f | 292 | nr_io_threads++; |
046395d7 JA |
293 | if (td->runstate < TD_EXITED) |
294 | return 1; | |
da8f124f | 295 | } end_for_each(); |
046395d7 | 296 | |
a691d82f TK |
297 | if (!nr_io_threads) |
298 | return -1; /* we only had cpuio threads to begin with */ | |
046395d7 JA |
299 | return 0; |
300 | } | |
301 | ||
3a35845f | 302 | int fio_set_fd_nonblocking(int fd, const char *who) |
4a851614 JA |
303 | { |
304 | int flags; | |
305 | ||
306 | flags = fcntl(fd, F_GETFL); | |
307 | if (flags < 0) | |
308 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); | |
309 | else { | |
3a35845f JA |
310 | int new_flags = flags | O_NONBLOCK; |
311 | ||
312 | new_flags = fcntl(fd, F_SETFL, new_flags); | |
313 | if (new_flags < 0) | |
4a851614 JA |
314 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); |
315 | } | |
3a35845f JA |
316 | |
317 | return flags; | |
4a851614 JA |
318 | } |
319 | ||
1a50e7f0 TK |
320 | enum { |
321 | ENDIAN_INVALID_BE = 1, | |
322 | ENDIAN_INVALID_LE, | |
323 | ENDIAN_INVALID_CONFIG, | |
324 | ENDIAN_BROKEN, | |
325 | }; | |
326 | ||
a569b45f JA |
327 | static int endian_check(void) |
328 | { | |
329 | union { | |
330 | uint8_t c[8]; | |
331 | uint64_t v; | |
332 | } u; | |
333 | int le = 0, be = 0; | |
334 | ||
335 | u.v = 0x12; | |
336 | if (u.c[7] == 0x12) | |
337 | be = 1; | |
338 | else if (u.c[0] == 0x12) | |
339 | le = 1; | |
340 | ||
341 | #if defined(CONFIG_LITTLE_ENDIAN) | |
342 | if (be) | |
1a50e7f0 | 343 | return ENDIAN_INVALID_BE; |
a569b45f JA |
344 | #elif defined(CONFIG_BIG_ENDIAN) |
345 | if (le) | |
1a50e7f0 | 346 | return ENDIAN_INVALID_LE; |
a569b45f | 347 | #else |
1a50e7f0 | 348 | return ENDIAN_INVALID_CONFIG; |
a569b45f JA |
349 | #endif |
350 | ||
351 | if (!le && !be) | |
1a50e7f0 | 352 | return ENDIAN_BROKEN; |
a569b45f JA |
353 | |
354 | return 0; | |
355 | } | |
356 | ||
357 | int initialize_fio(char *envp[]) | |
358 | { | |
359 | long ps; | |
1a50e7f0 | 360 | int err; |
a569b45f | 361 | |
976a7756 JA |
362 | /* |
363 | * We need these to be properly 64-bit aligned, otherwise we | |
364 | * can run into problems on archs that fault on unaligned fp | |
365 | * access (ARM). | |
366 | */ | |
dbf285f7 | 367 | compiletime_assert((offsetof(struct thread_data, ts) % sizeof(void *)) == 0, "ts"); |
24ffb6f8 | 368 | compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list"); |
3d0ebb30 GG |
369 | compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time"); |
370 | compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count"); | |
24ffb6f8 | 371 | compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile"); |
dbf285f7 | 372 | compiletime_assert((offsetof(struct thread_data, ts.clat_stat) % 8) == 0, "ts.clat_stat"); |
24ffb6f8 JA |
373 | compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta"); |
374 | compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h"); | |
375 | compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list"); | |
b8c6b4de | 376 | compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile"); |
dbf285f7 | 377 | compiletime_assert((offsetof(struct jobs_eta, m_rate) % 8) == 0, "m_rate"); |
976a7756 | 378 | |
9c6f1e75 | 379 | compiletime_assert(__TD_F_LAST <= TD_ENG_FLAG_SHIFT, "TD_ENG_FLAG_SHIFT"); |
3154f1ed | 380 | compiletime_assert(BSSPLIT_MAX <= ZONESPLIT_MAX, "bsssplit/zone max"); |
9c6f1e75 | 381 | |
1a50e7f0 TK |
382 | err = endian_check(); |
383 | if (err) { | |
a569b45f | 384 | log_err("fio: endianness settings appear wrong.\n"); |
1a50e7f0 TK |
385 | switch (err) { |
386 | case ENDIAN_INVALID_BE: | |
387 | log_err("fio: got big-endian when configured for little\n"); | |
388 | break; | |
389 | case ENDIAN_INVALID_LE: | |
390 | log_err("fio: got little-endian when configured for big\n"); | |
391 | break; | |
392 | case ENDIAN_INVALID_CONFIG: | |
393 | log_err("fio: not configured to any endianness\n"); | |
394 | break; | |
395 | case ENDIAN_BROKEN: | |
396 | log_err("fio: failed to detect endianness\n"); | |
397 | break; | |
398 | default: | |
399 | assert(0); | |
400 | break; | |
401 | } | |
a569b45f JA |
402 | log_err("fio: please report this to fio@vger.kernel.org\n"); |
403 | return 1; | |
404 | } | |
405 | ||
406 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) | |
407 | #error "No available clock source!" | |
408 | #endif | |
409 | ||
410 | arch_init(envp); | |
411 | ||
412 | sinit(); | |
413 | ||
243bfe19 JA |
414 | if (fio_filelock_init()) { |
415 | log_err("fio: failed initializing filelock subsys\n"); | |
416 | return 1; | |
417 | } | |
418 | ||
d619275c JA |
419 | file_hash_init(); |
420 | ||
a569b45f JA |
421 | /* |
422 | * We need locale for number printing, if it isn't set then just | |
423 | * go with the US format. | |
424 | */ | |
425 | if (!getenv("LC_NUMERIC")) | |
426 | setlocale(LC_NUMERIC, "en_US"); | |
427 | ||
428 | ps = sysconf(_SC_PAGESIZE); | |
429 | if (ps < 0) { | |
430 | log_err("Failed to get page size\n"); | |
431 | return 1; | |
432 | } | |
433 | ||
434 | page_size = ps; | |
435 | page_mask = ps - 1; | |
2e1df07d | 436 | |
a569b45f JA |
437 | fio_keywords_init(); |
438 | return 0; | |
439 | } | |
af1dc266 JA |
440 | |
441 | void deinitialize_fio(void) | |
442 | { | |
443 | fio_keywords_exit(); | |
444 | } |