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", | |
2e1df07d JA |
77 | "generic" |
78 | }; | |
79 | ||
ac28d905 | 80 | static void reset_io_counters(struct thread_data *td, int all) |
2e1df07d | 81 | { |
6eaf09d6 | 82 | int ddir; |
bcd5abfa | 83 | |
ac28d905 JA |
84 | if (all) { |
85 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { | |
86 | td->stat_io_bytes[ddir] = 0; | |
87 | td->this_io_bytes[ddir] = 0; | |
88 | td->stat_io_blocks[ddir] = 0; | |
89 | td->this_io_blocks[ddir] = 0; | |
90 | td->rate_bytes[ddir] = 0; | |
91 | td->rate_blocks[ddir] = 0; | |
92 | td->bytes_done[ddir] = 0; | |
93 | td->rate_io_issue_bytes[ddir] = 0; | |
94 | td->rate_next_io_time[ddir] = 0; | |
95 | } | |
6eaf09d6 | 96 | } |
ac28d905 | 97 | |
2e1df07d | 98 | td->zone_bytes = 0; |
2e1df07d | 99 | |
2ea93f98 | 100 | td->last_was_sync = false; |
bcd5abfa | 101 | td->rwmix_issues = 0; |
2e1df07d JA |
102 | |
103 | /* | |
104 | * reset file done count if we are to start over | |
105 | */ | |
44cbc6da | 106 | if (td->o.time_based || td->o.loops || td->o.do_verify) |
2e1df07d JA |
107 | td->nr_done_files = 0; |
108 | } | |
109 | ||
ac28d905 | 110 | void clear_io_state(struct thread_data *td, int all) |
2e1df07d JA |
111 | { |
112 | struct fio_file *f; | |
113 | unsigned int i; | |
114 | ||
ac28d905 | 115 | reset_io_counters(td, all); |
2e1df07d JA |
116 | |
117 | close_files(td); | |
ec803e97 | 118 | for_each_file(td, f, i) { |
2e1df07d | 119 | fio_file_clear_done(f); |
ec803e97 BF |
120 | f->file_offset = get_start_offset(td, f); |
121 | } | |
2e1df07d JA |
122 | |
123 | /* | |
1520f26e | 124 | * Re-Seed random number generator if rand_repeatable is true |
2e1df07d | 125 | */ |
1520f26e D |
126 | if (td->o.rand_repeatable) |
127 | td_fill_rand_seeds(td); | |
2e1df07d JA |
128 | } |
129 | ||
130 | void reset_all_stats(struct thread_data *td) | |
131 | { | |
2e1df07d JA |
132 | int i; |
133 | ||
ac28d905 | 134 | reset_io_counters(td, 1); |
2e1df07d | 135 | |
6eaf09d6 | 136 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2e1df07d JA |
137 | td->io_bytes[i] = 0; |
138 | td->io_blocks[i] = 0; | |
139 | td->io_issues[i] = 0; | |
140 | td->ts.total_io_u[i] = 0; | |
6eaf09d6 | 141 | td->ts.runtime[i] = 0; |
5b3faae6 | 142 | td->rwmix_issues = 0; |
2e1df07d JA |
143 | } |
144 | ||
3aea75b1 | 145 | set_epoch_time(td, td->o.log_unix_epoch); |
8b6a404c VF |
146 | memcpy(&td->start, &td->epoch, sizeof(td->epoch)); |
147 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
148 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); | |
149 | memcpy(&td->ss.prev_time, &td->epoch, sizeof(td->epoch)); | |
3e260a46 | 150 | |
6bb58215 | 151 | lat_target_reset(td); |
210dd0fc | 152 | clear_rusage_stat(td); |
a47591e4 | 153 | helper_reset(); |
2e1df07d JA |
154 | } |
155 | ||
156 | void reset_fio_state(void) | |
157 | { | |
158 | groupid = 0; | |
159 | thread_number = 0; | |
2caefeec | 160 | stat_number = 0; |
2e1df07d JA |
161 | done_secs = 0; |
162 | } | |
163 | ||
164 | const char *fio_get_os_string(int nr) | |
165 | { | |
166 | if (nr < os_nr) | |
167 | return fio_os_strings[nr]; | |
168 | ||
169 | return NULL; | |
170 | } | |
171 | ||
172 | const char *fio_get_arch_string(int nr) | |
173 | { | |
174 | if (nr < arch_nr) | |
175 | return fio_arch_strings[nr]; | |
176 | ||
177 | return NULL; | |
178 | } | |
179 | ||
6e760cf3 JA |
180 | static const char *td_runstates[] = { |
181 | "NOT_CREATED", | |
182 | "CREATED", | |
183 | "INITIALIZED", | |
184 | "RAMP", | |
185 | "SETTING_UP", | |
186 | "RUNNING", | |
187 | "PRE_READING", | |
188 | "VERIFYING", | |
189 | "FSYNCING", | |
190 | "FINISHING", | |
191 | "EXITED", | |
192 | "REAPED", | |
193 | }; | |
194 | ||
9cc8cb91 | 195 | const char *runstate_to_name(int runstate) |
6e760cf3 JA |
196 | { |
197 | compiletime_assert(TD_LAST == 12, "td runstate list"); | |
198 | if (runstate >= 0 && runstate < TD_LAST) | |
199 | return td_runstates[runstate]; | |
200 | ||
201 | return "invalid"; | |
202 | } | |
203 | ||
2e1df07d JA |
204 | void td_set_runstate(struct thread_data *td, int runstate) |
205 | { | |
206 | if (td->runstate == runstate) | |
207 | return; | |
208 | ||
6e760cf3 JA |
209 | dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid, |
210 | runstate_to_name(td->runstate), | |
211 | runstate_to_name(runstate)); | |
2e1df07d JA |
212 | td->runstate = runstate; |
213 | } | |
214 | ||
8edd973d JA |
215 | int td_bump_runstate(struct thread_data *td, int new_state) |
216 | { | |
217 | int old_state = td->runstate; | |
218 | ||
219 | td_set_runstate(td, new_state); | |
220 | return old_state; | |
221 | } | |
222 | ||
223 | void td_restore_runstate(struct thread_data *td, int old_state) | |
224 | { | |
225 | td_set_runstate(td, old_state); | |
226 | } | |
227 | ||
ebea2133 JA |
228 | void fio_mark_td_terminate(struct thread_data *td) |
229 | { | |
230 | fio_gettime(&td->terminate_time, NULL); | |
231 | write_barrier(); | |
2ea93f98 | 232 | td->terminate = true; |
ebea2133 JA |
233 | } |
234 | ||
d883efbd | 235 | void fio_terminate_threads(unsigned int group_id) |
2e1df07d JA |
236 | { |
237 | struct thread_data *td; | |
41fa20ec | 238 | pid_t pid = getpid(); |
2e1df07d JA |
239 | int i; |
240 | ||
241 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); | |
242 | ||
243 | for_each_td(td, i) { | |
d883efbd | 244 | if (group_id == TERMINATE_ALL || group_id == td->groupid) { |
2e1df07d JA |
245 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
246 | td->o.name, (int) td->pid); | |
cba5460c JA |
247 | |
248 | if (td->terminate) | |
249 | continue; | |
250 | ||
ebea2133 | 251 | fio_mark_td_terminate(td); |
2e1df07d JA |
252 | td->o.start_delay = 0; |
253 | ||
254 | /* | |
255 | * if the thread is running, just let it exit | |
256 | */ | |
36d80bc7 | 257 | if (!td->pid || pid == td->pid) |
2e1df07d JA |
258 | continue; |
259 | else if (td->runstate < TD_RAMP) | |
260 | kill(td->pid, SIGTERM); | |
36d80bc7 | 261 | else { |
2e1df07d JA |
262 | struct ioengine_ops *ops = td->io_ops; |
263 | ||
36d80bc7 JA |
264 | if (ops && ops->terminate) |
265 | ops->terminate(td); | |
2e1df07d JA |
266 | } |
267 | } | |
268 | } | |
269 | } | |
270 | ||
046395d7 JA |
271 | int fio_running_or_pending_io_threads(void) |
272 | { | |
273 | struct thread_data *td; | |
274 | int i; | |
a691d82f | 275 | int nr_io_threads = 0; |
046395d7 JA |
276 | |
277 | for_each_td(td, i) { | |
356ef1a1 | 278 | if (td->io_ops_init && td_ioengine_flagged(td, FIO_NOIO)) |
046395d7 | 279 | continue; |
a691d82f | 280 | nr_io_threads++; |
046395d7 JA |
281 | if (td->runstate < TD_EXITED) |
282 | return 1; | |
283 | } | |
284 | ||
a691d82f TK |
285 | if (!nr_io_threads) |
286 | return -1; /* we only had cpuio threads to begin with */ | |
046395d7 JA |
287 | return 0; |
288 | } | |
289 | ||
3a35845f | 290 | int fio_set_fd_nonblocking(int fd, const char *who) |
4a851614 JA |
291 | { |
292 | int flags; | |
293 | ||
294 | flags = fcntl(fd, F_GETFL); | |
295 | if (flags < 0) | |
296 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); | |
297 | else { | |
3a35845f JA |
298 | int new_flags = flags | O_NONBLOCK; |
299 | ||
300 | new_flags = fcntl(fd, F_SETFL, new_flags); | |
301 | if (new_flags < 0) | |
4a851614 JA |
302 | log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno)); |
303 | } | |
3a35845f JA |
304 | |
305 | return flags; | |
4a851614 JA |
306 | } |
307 | ||
1a50e7f0 TK |
308 | enum { |
309 | ENDIAN_INVALID_BE = 1, | |
310 | ENDIAN_INVALID_LE, | |
311 | ENDIAN_INVALID_CONFIG, | |
312 | ENDIAN_BROKEN, | |
313 | }; | |
314 | ||
a569b45f JA |
315 | static int endian_check(void) |
316 | { | |
317 | union { | |
318 | uint8_t c[8]; | |
319 | uint64_t v; | |
320 | } u; | |
321 | int le = 0, be = 0; | |
322 | ||
323 | u.v = 0x12; | |
324 | if (u.c[7] == 0x12) | |
325 | be = 1; | |
326 | else if (u.c[0] == 0x12) | |
327 | le = 1; | |
328 | ||
329 | #if defined(CONFIG_LITTLE_ENDIAN) | |
330 | if (be) | |
1a50e7f0 | 331 | return ENDIAN_INVALID_BE; |
a569b45f JA |
332 | #elif defined(CONFIG_BIG_ENDIAN) |
333 | if (le) | |
1a50e7f0 | 334 | return ENDIAN_INVALID_LE; |
a569b45f | 335 | #else |
1a50e7f0 | 336 | return ENDIAN_INVALID_CONFIG; |
a569b45f JA |
337 | #endif |
338 | ||
339 | if (!le && !be) | |
1a50e7f0 | 340 | return ENDIAN_BROKEN; |
a569b45f JA |
341 | |
342 | return 0; | |
343 | } | |
344 | ||
345 | int initialize_fio(char *envp[]) | |
346 | { | |
347 | long ps; | |
1a50e7f0 | 348 | int err; |
a569b45f | 349 | |
976a7756 JA |
350 | /* |
351 | * We need these to be properly 64-bit aligned, otherwise we | |
352 | * can run into problems on archs that fault on unaligned fp | |
353 | * access (ARM). | |
354 | */ | |
dbf285f7 | 355 | compiletime_assert((offsetof(struct thread_data, ts) % sizeof(void *)) == 0, "ts"); |
24ffb6f8 | 356 | compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list"); |
3d0ebb30 GG |
357 | compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time"); |
358 | compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count"); | |
24ffb6f8 | 359 | compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile"); |
dbf285f7 | 360 | compiletime_assert((offsetof(struct thread_data, ts.clat_stat) % 8) == 0, "ts.clat_stat"); |
24ffb6f8 JA |
361 | compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta"); |
362 | compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h"); | |
363 | compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list"); | |
b8c6b4de | 364 | compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile"); |
dbf285f7 | 365 | compiletime_assert((offsetof(struct jobs_eta, m_rate) % 8) == 0, "m_rate"); |
976a7756 | 366 | |
9c6f1e75 | 367 | compiletime_assert(__TD_F_LAST <= TD_ENG_FLAG_SHIFT, "TD_ENG_FLAG_SHIFT"); |
3154f1ed | 368 | compiletime_assert(BSSPLIT_MAX <= ZONESPLIT_MAX, "bsssplit/zone max"); |
9c6f1e75 | 369 | |
1a50e7f0 TK |
370 | err = endian_check(); |
371 | if (err) { | |
a569b45f | 372 | log_err("fio: endianness settings appear wrong.\n"); |
1a50e7f0 TK |
373 | switch (err) { |
374 | case ENDIAN_INVALID_BE: | |
375 | log_err("fio: got big-endian when configured for little\n"); | |
376 | break; | |
377 | case ENDIAN_INVALID_LE: | |
378 | log_err("fio: got little-endian when configured for big\n"); | |
379 | break; | |
380 | case ENDIAN_INVALID_CONFIG: | |
381 | log_err("fio: not configured to any endianness\n"); | |
382 | break; | |
383 | case ENDIAN_BROKEN: | |
384 | log_err("fio: failed to detect endianness\n"); | |
385 | break; | |
386 | default: | |
387 | assert(0); | |
388 | break; | |
389 | } | |
a569b45f JA |
390 | log_err("fio: please report this to fio@vger.kernel.org\n"); |
391 | return 1; | |
392 | } | |
393 | ||
394 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) | |
395 | #error "No available clock source!" | |
396 | #endif | |
397 | ||
398 | arch_init(envp); | |
399 | ||
400 | sinit(); | |
401 | ||
243bfe19 JA |
402 | if (fio_filelock_init()) { |
403 | log_err("fio: failed initializing filelock subsys\n"); | |
404 | return 1; | |
405 | } | |
406 | ||
d619275c JA |
407 | file_hash_init(); |
408 | ||
a569b45f JA |
409 | /* |
410 | * We need locale for number printing, if it isn't set then just | |
411 | * go with the US format. | |
412 | */ | |
413 | if (!getenv("LC_NUMERIC")) | |
414 | setlocale(LC_NUMERIC, "en_US"); | |
415 | ||
416 | ps = sysconf(_SC_PAGESIZE); | |
417 | if (ps < 0) { | |
418 | log_err("Failed to get page size\n"); | |
419 | return 1; | |
420 | } | |
421 | ||
422 | page_size = ps; | |
423 | page_mask = ps - 1; | |
2e1df07d | 424 | |
a569b45f JA |
425 | fio_keywords_init(); |
426 | return 0; | |
427 | } | |
af1dc266 JA |
428 | |
429 | void deinitialize_fio(void) | |
430 | { | |
431 | fio_keywords_exit(); | |
432 | } |