Commit | Line | Data |
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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" |
1a7081c7 | 37 | #include "target.h" |
2e1df07d | 38 | |
a3efc919 | 39 | FLIST_HEAD(disk_list); |
a3efc919 JA |
40 | |
41 | unsigned long arch_flags = 0; | |
42 | ||
a569b45f JA |
43 | uintptr_t page_mask = 0; |
44 | uintptr_t page_size = 0; | |
45 | ||
c6da2c34 | 46 | /* see os/os.h */ |
2e1df07d JA |
47 | static const char *fio_os_strings[os_nr] = { |
48 | "Invalid", | |
49 | "Linux", | |
50 | "AIX", | |
51 | "FreeBSD", | |
52 | "HP-UX", | |
53 | "OSX", | |
54 | "NetBSD", | |
1c7eaa7b | 55 | "OpenBSD", |
2e1df07d | 56 | "Solaris", |
1c7eaa7b JA |
57 | "Windows", |
58 | "Android", | |
239b2882 | 59 | "DragonFly", |
2e1df07d JA |
60 | }; |
61 | ||
c6da2c34 | 62 | /* see arch/arch.h */ |
2e1df07d JA |
63 | static const char *fio_arch_strings[arch_nr] = { |
64 | "Invalid", | |
65 | "x86-64", | |
66 | "x86", | |
67 | "ppc", | |
68 | "ia64", | |
69 | "s390", | |
70 | "alpha", | |
71 | "sparc", | |
72 | "sparc64", | |
73 | "arm", | |
74 | "sh", | |
75 | "hppa", | |
c6da2c34 TK |
76 | "mips", |
77 | "aarch64", | |
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; | |
91 | td->rate_bytes[ddir] = 0; | |
92 | td->rate_blocks[ddir] = 0; | |
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 | } |
6eaf09d6 | 98 | } |
ac28d905 | 99 | |
2e1df07d | 100 | td->zone_bytes = 0; |
2e1df07d | 101 | |
2ea93f98 | 102 | td->last_was_sync = false; |
bcd5abfa | 103 | td->rwmix_issues = 0; |
2e1df07d JA |
104 | |
105 | /* | |
106 | * reset file done count if we are to start over | |
107 | */ | |
44cbc6da | 108 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
2e1df07d JA |
109 | td->nr_done_files = 0; |
110 | } | |
111 | ||
ac28d905 | 112 | void clear_io_state(struct thread_data *td, int all) |
2e1df07d JA |
113 | { |
114 | struct fio_file *f; | |
115 | unsigned int i; | |
116 | ||
ac28d905 | 117 | reset_io_counters(td, all); |
2e1df07d JA |
118 | |
119 | close_files(td); | |
ec803e97 | 120 | for_each_file(td, f, i) { |
2e1df07d | 121 | fio_file_clear_done(f); |
ec803e97 BF |
122 | f->file_offset = get_start_offset(td, f); |
123 | } | |
2e1df07d JA |
124 | |
125 | /* | |
1520f26e | 126 | * Re-Seed random number generator if rand_repeatable is true |
2e1df07d | 127 | */ |
1520f26e D |
128 | if (td->o.rand_repeatable) |
129 | td_fill_rand_seeds(td); | |
2e1df07d JA |
130 | } |
131 | ||
132 | void reset_all_stats(struct thread_data *td) | |
133 | { | |
2e1df07d JA |
134 | int i; |
135 | ||
ac28d905 | 136 | reset_io_counters(td, 1); |
2e1df07d | 137 | |
6eaf09d6 | 138 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
139 | td->io_bytes[i] = 0; |
140 | td->io_blocks[i] = 0; | |
141 | td->io_issues[i] = 0; | |
142 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 143 | td->ts.runtime[i] = 0; |
5b3faae6 | 144 | td->rwmix_issues = 0; |
2e1df07d JA |
145 | } |
146 | ||
3aea75b1 | 147 | set_epoch_time(td, td->o.log_unix_epoch); |
8b6a404c VF |
148 | memcpy(&td->start, &td->epoch, sizeof(td->epoch)); |
149 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
150 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); | |
151 | memcpy(&td->ss.prev_time, &td->epoch, sizeof(td->epoch)); | |
3e260a46 | 152 | |
6bb58215 | 153 | lat_target_reset(td); |
210dd0fc | 154 | clear_rusage_stat(td); |
a47591e4 | 155 | helper_reset(); |
2e1df07d JA |
156 | } |
157 | ||
158 | void reset_fio_state(void) | |
159 | { | |
160 | groupid = 0; | |
161 | thread_number = 0; | |
2caefeec | 162 | stat_number = 0; |
2e1df07d JA |
163 | done_secs = 0; |
164 | } | |
165 | ||
166 | const char *fio_get_os_string(int nr) | |
167 | { | |
168 | if (nr < os_nr) | |
169 | return fio_os_strings[nr]; | |
170 | ||
171 | return NULL; | |
172 | } | |
173 | ||
174 | const char *fio_get_arch_string(int nr) | |
175 | { | |
176 | if (nr < arch_nr) | |
177 | return fio_arch_strings[nr]; | |
178 | ||
179 | return NULL; | |
180 | } | |
181 | ||
6e760cf3 JA |
182 | static const char *td_runstates[] = { |
183 | "NOT_CREATED", | |
184 | "CREATED", | |
185 | "INITIALIZED", | |
186 | "RAMP", | |
187 | "SETTING_UP", | |
188 | "RUNNING", | |
189 | "PRE_READING", | |
190 | "VERIFYING", | |
191 | "FSYNCING", | |
192 | "FINISHING", | |
193 | "EXITED", | |
194 | "REAPED", | |
195 | }; | |
196 | ||
9cc8cb91 | 197 | const char *runstate_to_name(int runstate) |
6e760cf3 JA |
198 | { |
199 | compiletime_assert(TD_LAST == 12, "td runstate list"); | |
200 | if (runstate >= 0 && runstate < TD_LAST) | |
201 | return td_runstates[runstate]; | |
202 | ||
203 | return "invalid"; | |
204 | } | |
205 | ||
2e1df07d JA |
206 | void td_set_runstate(struct thread_data *td, int runstate) |
207 | { | |
208 | if (td->runstate == runstate) | |
209 | return; | |
210 | ||
6e760cf3 JA |
211 | dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid, |
212 | runstate_to_name(td->runstate), | |
213 | runstate_to_name(runstate)); | |
2e1df07d JA |
214 | td->runstate = runstate; |
215 | } | |
216 | ||
8edd973d JA |
217 | int td_bump_runstate(struct thread_data *td, int new_state) |
218 | { | |
219 | int old_state = td->runstate; | |
220 | ||
221 | td_set_runstate(td, new_state); | |
222 | return old_state; | |
223 | } | |
224 | ||
225 | void td_restore_runstate(struct thread_data *td, int old_state) | |
226 | { | |
227 | td_set_runstate(td, old_state); | |
228 | } | |
229 | ||
ebea2133 JA |
230 | void fio_mark_td_terminate(struct thread_data *td) |
231 | { | |
232 | fio_gettime(&td->terminate_time, NULL); | |
233 | write_barrier(); | |
2ea93f98 | 234 | td->terminate = true; |
ebea2133 JA |
235 | } |
236 | ||
d883efbd | 237 | void fio_terminate_threads(unsigned int group_id) |
2e1df07d JA |
238 | { |
239 | struct thread_data *td; | |
41fa20ec | 240 | pid_t pid = getpid(); |
2e1df07d JA |
241 | int i; |
242 | ||
243 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
244 | ||
245 | for_each_td(td, i) { | |
d883efbd | 246 | if (group_id == TERMINATE_ALL || group_id == td->groupid) { |
2e1df07d JA |
247 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
248 | td->o.name, (int) td->pid); | |
cba5460c JA |
249 | |
250 | if (td->terminate) | |
251 | continue; | |
252 | ||
ebea2133 | 253 | fio_mark_td_terminate(td); |
2e1df07d JA |
254 | td->o.start_delay = 0; |
255 | ||
256 | /* | |
257 | * if the thread is running, just let it exit | |
258 | */ | |
36d80bc7 | 259 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
260 | continue; |
261 | else if (td->runstate < TD_RAMP) | |
262 | kill(td->pid, SIGTERM); | |
36d80bc7 | 263 | else { |
2e1df07d JA |
264 | struct ioengine_ops *ops = td->io_ops; |
265 | ||
36d80bc7 JA |
266 | if (ops && ops->terminate) |
267 | ops->terminate(td); | |
2e1df07d JA |
268 | } |
269 | } | |
270 | } | |
271 | } | |
272 | ||
046395d7 JA |
273 | int fio_running_or_pending_io_threads(void) |
274 | { | |
275 | struct thread_data *td; | |
276 | int i; | |
a691d82f | 277 | int nr_io_threads = 0; |
046395d7 JA |
278 | |
279 | for_each_td(td, i) { | |
356ef1a1 | 280 | if (td->io_ops_init && td_ioengine_flagged(td, FIO_NOIO)) |
046395d7 | 281 | continue; |
a691d82f | 282 | nr_io_threads++; |
046395d7 JA |
283 | if (td->runstate < TD_EXITED) |
284 | return 1; | |
285 | } | |
286 | ||
a691d82f TK |
287 | if (!nr_io_threads) |
288 | return -1; /* we only had cpuio threads to begin with */ | |
046395d7 JA |
289 | return 0; |
290 | } | |
291 | ||
3a35845f | 292 | int fio_set_fd_nonblocking(int fd, const char *who) |
4a851614 JA |
293 | { |
294 | int flags; | |
295 | ||
296 | flags = fcntl(fd, F_GETFL); | |
297 | if (flags < 0) | |
298 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); | |
299 | else { | |
3a35845f JA |
300 | int new_flags = flags | O_NONBLOCK; |
301 | ||
302 | new_flags = fcntl(fd, F_SETFL, new_flags); | |
303 | if (new_flags < 0) | |
4a851614 JA |
304 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); |
305 | } | |
3a35845f JA |
306 | |
307 | return flags; | |
4a851614 JA |
308 | } |
309 | ||
1a50e7f0 TK |
310 | enum { |
311 | ENDIAN_INVALID_BE = 1, | |
312 | ENDIAN_INVALID_LE, | |
313 | ENDIAN_INVALID_CONFIG, | |
314 | ENDIAN_BROKEN, | |
315 | }; | |
316 | ||
a569b45f JA |
317 | static int endian_check(void) |
318 | { | |
319 | union { | |
320 | uint8_t c[8]; | |
321 | uint64_t v; | |
322 | } u; | |
323 | int le = 0, be = 0; | |
324 | ||
325 | u.v = 0x12; | |
326 | if (u.c[7] == 0x12) | |
327 | be = 1; | |
328 | else if (u.c[0] == 0x12) | |
329 | le = 1; | |
330 | ||
331 | #if defined(CONFIG_LITTLE_ENDIAN) | |
332 | if (be) | |
1a50e7f0 | 333 | return ENDIAN_INVALID_BE; |
a569b45f JA |
334 | #elif defined(CONFIG_BIG_ENDIAN) |
335 | if (le) | |
1a50e7f0 | 336 | return ENDIAN_INVALID_LE; |
a569b45f | 337 | #else |
1a50e7f0 | 338 | return ENDIAN_INVALID_CONFIG; |
a569b45f JA |
339 | #endif |
340 | ||
341 | if (!le && !be) | |
1a50e7f0 | 342 | return ENDIAN_BROKEN; |
a569b45f JA |
343 | |
344 | return 0; | |
345 | } | |
346 | ||
347 | int initialize_fio(char *envp[]) | |
348 | { | |
349 | long ps; | |
1a50e7f0 | 350 | int err; |
a569b45f | 351 | |
976a7756 JA |
352 | /* |
353 | * We need these to be properly 64-bit aligned, otherwise we | |
354 | * can run into problems on archs that fault on unaligned fp | |
355 | * access (ARM). | |
356 | */ | |
dbf285f7 | 357 | compiletime_assert((offsetof(struct thread_data, ts) % sizeof(void *)) == 0, "ts"); |
24ffb6f8 | 358 | compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list"); |
3d0ebb30 GG |
359 | compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time"); |
360 | compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count"); | |
24ffb6f8 | 361 | compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile"); |
dbf285f7 | 362 | compiletime_assert((offsetof(struct thread_data, ts.clat_stat) % 8) == 0, "ts.clat_stat"); |
24ffb6f8 JA |
363 | compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta"); |
364 | compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h"); | |
365 | compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list"); | |
b8c6b4de | 366 | compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile"); |
dbf285f7 | 367 | compiletime_assert((offsetof(struct jobs_eta, m_rate) % 8) == 0, "m_rate"); |
976a7756 | 368 | |
9c6f1e75 | 369 | compiletime_assert(__TD_F_LAST <= TD_ENG_FLAG_SHIFT, "TD_ENG_FLAG_SHIFT"); |
3154f1ed | 370 | compiletime_assert(BSSPLIT_MAX <= ZONESPLIT_MAX, "bsssplit/zone max"); |
9c6f1e75 | 371 | |
1a50e7f0 TK |
372 | err = endian_check(); |
373 | if (err) { | |
a569b45f | 374 | log_err("fio: endianness settings appear wrong.\n"); |
1a50e7f0 TK |
375 | switch (err) { |
376 | case ENDIAN_INVALID_BE: | |
377 | log_err("fio: got big-endian when configured for little\n"); | |
378 | break; | |
379 | case ENDIAN_INVALID_LE: | |
380 | log_err("fio: got little-endian when configured for big\n"); | |
381 | break; | |
382 | case ENDIAN_INVALID_CONFIG: | |
383 | log_err("fio: not configured to any endianness\n"); | |
384 | break; | |
385 | case ENDIAN_BROKEN: | |
386 | log_err("fio: failed to detect endianness\n"); | |
387 | break; | |
388 | default: | |
389 | assert(0); | |
390 | break; | |
391 | } | |
a569b45f JA |
392 | log_err("fio: please report this to fio@vger.kernel.org\n"); |
393 | return 1; | |
394 | } | |
395 | ||
396 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) | |
397 | #error "No available clock source!" | |
398 | #endif | |
399 | ||
400 | arch_init(envp); | |
401 | ||
402 | sinit(); | |
403 | ||
243bfe19 JA |
404 | if (fio_filelock_init()) { |
405 | log_err("fio: failed initializing filelock subsys\n"); | |
406 | return 1; | |
407 | } | |
408 | ||
d619275c JA |
409 | file_hash_init(); |
410 | ||
a569b45f JA |
411 | /* |
412 | * We need locale for number printing, if it isn't set then just | |
413 | * go with the US format. | |
414 | */ | |
415 | if (!getenv("LC_NUMERIC")) | |
416 | setlocale(LC_NUMERIC, "en_US"); | |
417 | ||
418 | ps = sysconf(_SC_PAGESIZE); | |
419 | if (ps < 0) { | |
420 | log_err("Failed to get page size\n"); | |
421 | return 1; | |
422 | } | |
423 | ||
424 | page_size = ps; | |
425 | page_mask = ps - 1; | |
2e1df07d | 426 | |
a569b45f JA |
427 | fio_keywords_init(); |
428 | return 0; | |
429 | } | |
af1dc266 JA |
430 | |
431 | void deinitialize_fio(void) | |
432 | { | |
433 | fio_keywords_exit(); | |
434 | } |