Commit | Line | Data |
---|---|---|
ac9b9101 JA |
1 | /* |
2 | * Code related to writing an iolog of what a thread is doing, and to | |
3 | * later read that back and replay | |
4 | */ | |
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
7 | #include <libgen.h> | |
8 | #include <assert.h> | |
9 | #include "flist.h" | |
10 | #include "fio.h" | |
11 | #include "verify.h" | |
12 | #include "trim.h" | |
243bfe19 | 13 | #include "filelock.h" |
ac9b9101 JA |
14 | |
15 | static const char iolog_ver2[] = "fio version 2 iolog"; | |
16 | ||
17 | void queue_io_piece(struct thread_data *td, struct io_piece *ipo) | |
18 | { | |
19 | flist_add_tail(&ipo->list, &td->io_log_list); | |
20 | td->total_io_size += ipo->len; | |
21 | } | |
22 | ||
23 | void log_io_u(struct thread_data *td, struct io_u *io_u) | |
24 | { | |
25 | const char *act[] = { "read", "write", "sync", "datasync", | |
26 | "sync_file_range", "wait", "trim" }; | |
27 | ||
28 | assert(io_u->ddir <= 6); | |
29 | ||
30 | if (!td->o.write_iolog_file) | |
31 | return; | |
32 | ||
33 | fprintf(td->iolog_f, "%s %s %llu %lu\n", io_u->file->file_name, | |
34 | act[io_u->ddir], io_u->offset, | |
35 | io_u->buflen); | |
36 | } | |
37 | ||
38 | void log_file(struct thread_data *td, struct fio_file *f, | |
39 | enum file_log_act what) | |
40 | { | |
41 | const char *act[] = { "add", "open", "close" }; | |
42 | ||
43 | assert(what < 3); | |
44 | ||
45 | if (!td->o.write_iolog_file) | |
46 | return; | |
47 | ||
48 | ||
49 | /* | |
50 | * this happens on the pre-open/close done before the job starts | |
51 | */ | |
52 | if (!td->iolog_f) | |
53 | return; | |
54 | ||
55 | fprintf(td->iolog_f, "%s %s\n", f->file_name, act[what]); | |
56 | } | |
57 | ||
58 | static void iolog_delay(struct thread_data *td, unsigned long delay) | |
59 | { | |
60 | unsigned long usec = utime_since_now(&td->last_issue); | |
61 | ||
62 | if (delay < usec) | |
63 | return; | |
64 | ||
65 | delay -= usec; | |
66 | ||
67 | /* | |
68 | * less than 100 usec delay, just regard it as noise | |
69 | */ | |
70 | if (delay < 100) | |
71 | return; | |
72 | ||
73 | usec_sleep(td, delay); | |
74 | } | |
75 | ||
76 | static int ipo_special(struct thread_data *td, struct io_piece *ipo) | |
77 | { | |
78 | struct fio_file *f; | |
79 | int ret; | |
80 | ||
81 | /* | |
82 | * Not a special ipo | |
83 | */ | |
84 | if (ipo->ddir != DDIR_INVAL) | |
85 | return 0; | |
86 | ||
87 | f = td->files[ipo->fileno]; | |
88 | ||
89 | switch (ipo->file_action) { | |
90 | case FIO_LOG_OPEN_FILE: | |
91 | ret = td_io_open_file(td, f); | |
92 | if (!ret) | |
93 | break; | |
94 | td_verror(td, ret, "iolog open file"); | |
95 | return -1; | |
96 | case FIO_LOG_CLOSE_FILE: | |
97 | td_io_close_file(td, f); | |
98 | break; | |
99 | case FIO_LOG_UNLINK_FILE: | |
100 | unlink(f->file_name); | |
101 | break; | |
102 | default: | |
103 | log_err("fio: bad file action %d\n", ipo->file_action); | |
104 | break; | |
105 | } | |
106 | ||
107 | return 1; | |
108 | } | |
109 | ||
110 | int read_iolog_get(struct thread_data *td, struct io_u *io_u) | |
111 | { | |
112 | struct io_piece *ipo; | |
113 | unsigned long elapsed; | |
3c3ed070 | 114 | |
ac9b9101 JA |
115 | while (!flist_empty(&td->io_log_list)) { |
116 | int ret; | |
117 | ||
118 | ipo = flist_entry(td->io_log_list.next, struct io_piece, list); | |
119 | flist_del(&ipo->list); | |
120 | remove_trim_entry(td, ipo); | |
121 | ||
122 | ret = ipo_special(td, ipo); | |
123 | if (ret < 0) { | |
124 | free(ipo); | |
125 | break; | |
126 | } else if (ret > 0) { | |
127 | free(ipo); | |
128 | continue; | |
129 | } | |
130 | ||
131 | io_u->ddir = ipo->ddir; | |
132 | if (ipo->ddir != DDIR_WAIT) { | |
133 | io_u->offset = ipo->offset; | |
134 | io_u->buflen = ipo->len; | |
135 | io_u->file = td->files[ipo->fileno]; | |
136 | get_file(io_u->file); | |
137 | dprint(FD_IO, "iolog: get %llu/%lu/%s\n", io_u->offset, | |
138 | io_u->buflen, io_u->file->file_name); | |
139 | if (ipo->delay) | |
140 | iolog_delay(td, ipo->delay); | |
141 | } else { | |
142 | elapsed = mtime_since_genesis(); | |
143 | if (ipo->delay > elapsed) | |
144 | usec_sleep(td, (ipo->delay - elapsed) * 1000); | |
ac9b9101 JA |
145 | } |
146 | ||
147 | free(ipo); | |
3c3ed070 | 148 | |
ac9b9101 JA |
149 | if (io_u->ddir != DDIR_WAIT) |
150 | return 0; | |
151 | } | |
152 | ||
153 | td->done = 1; | |
154 | return 1; | |
155 | } | |
156 | ||
157 | void prune_io_piece_log(struct thread_data *td) | |
158 | { | |
159 | struct io_piece *ipo; | |
160 | struct rb_node *n; | |
161 | ||
162 | while ((n = rb_first(&td->io_hist_tree)) != NULL) { | |
163 | ipo = rb_entry(n, struct io_piece, rb_node); | |
164 | rb_erase(n, &td->io_hist_tree); | |
165 | remove_trim_entry(td, ipo); | |
166 | td->io_hist_len--; | |
167 | free(ipo); | |
168 | } | |
169 | ||
170 | while (!flist_empty(&td->io_hist_list)) { | |
171 | ipo = flist_entry(td->io_hist_list.next, struct io_piece, list); | |
172 | flist_del(&ipo->list); | |
173 | remove_trim_entry(td, ipo); | |
174 | td->io_hist_len--; | |
175 | free(ipo); | |
176 | } | |
177 | } | |
178 | ||
179 | /* | |
180 | * log a successful write, so we can unwind the log for verify | |
181 | */ | |
182 | void log_io_piece(struct thread_data *td, struct io_u *io_u) | |
183 | { | |
184 | struct rb_node **p, *parent; | |
185 | struct io_piece *ipo, *__ipo; | |
186 | ||
187 | ipo = malloc(sizeof(struct io_piece)); | |
188 | init_ipo(ipo); | |
189 | ipo->file = io_u->file; | |
190 | ipo->offset = io_u->offset; | |
191 | ipo->len = io_u->buflen; | |
da0a7bd2 | 192 | ipo->numberio = io_u->numberio; |
f9401285 JA |
193 | ipo->flags = IP_F_IN_FLIGHT; |
194 | ||
195 | io_u->ipo = ipo; | |
ac9b9101 JA |
196 | |
197 | if (io_u_should_trim(td, io_u)) { | |
198 | flist_add_tail(&ipo->trim_list, &td->trim_list); | |
199 | td->trim_entries++; | |
200 | } | |
201 | ||
202 | /* | |
203 | * We don't need to sort the entries, if: | |
204 | * | |
205 | * Sequential writes, or | |
206 | * Random writes that lay out the file as it goes along | |
207 | * | |
208 | * For both these cases, just reading back data in the order we | |
209 | * wrote it out is the fastest. | |
210 | * | |
211 | * One exception is if we don't have a random map AND we are doing | |
212 | * verifies, in that case we need to check for duplicate blocks and | |
213 | * drop the old one, which we rely on the rb insert/lookup for | |
214 | * handling. | |
215 | */ | |
c4b6117b | 216 | if (((!td->o.verifysort) || !td_random(td) || !td->o.overwrite) && |
ac9b9101 JA |
217 | (file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) { |
218 | INIT_FLIST_HEAD(&ipo->list); | |
219 | flist_add_tail(&ipo->list, &td->io_hist_list); | |
220 | ipo->flags |= IP_F_ONLIST; | |
221 | td->io_hist_len++; | |
222 | return; | |
223 | } | |
224 | ||
225 | RB_CLEAR_NODE(&ipo->rb_node); | |
226 | ||
227 | /* | |
228 | * Sort the entry into the verification list | |
229 | */ | |
230 | restart: | |
231 | p = &td->io_hist_tree.rb_node; | |
232 | parent = NULL; | |
233 | while (*p) { | |
234 | parent = *p; | |
235 | ||
236 | __ipo = rb_entry(parent, struct io_piece, rb_node); | |
237 | if (ipo->file < __ipo->file) | |
238 | p = &(*p)->rb_left; | |
239 | else if (ipo->file > __ipo->file) | |
240 | p = &(*p)->rb_right; | |
241 | else if (ipo->offset < __ipo->offset) | |
242 | p = &(*p)->rb_left; | |
243 | else if (ipo->offset > __ipo->offset) | |
244 | p = &(*p)->rb_right; | |
245 | else { | |
885ac623 JA |
246 | dprint(FD_IO, "iolog: overlap %llu/%lu, %llu/%lu", |
247 | __ipo->offset, __ipo->len, | |
248 | ipo->offset, ipo->len); | |
ac9b9101 JA |
249 | td->io_hist_len--; |
250 | rb_erase(parent, &td->io_hist_tree); | |
251 | remove_trim_entry(td, __ipo); | |
252 | free(__ipo); | |
253 | goto restart; | |
254 | } | |
255 | } | |
256 | ||
257 | rb_link_node(&ipo->rb_node, parent, p); | |
258 | rb_insert_color(&ipo->rb_node, &td->io_hist_tree); | |
259 | ipo->flags |= IP_F_ONRB; | |
260 | td->io_hist_len++; | |
261 | } | |
262 | ||
263 | void write_iolog_close(struct thread_data *td) | |
264 | { | |
265 | fflush(td->iolog_f); | |
266 | fclose(td->iolog_f); | |
267 | free(td->iolog_buf); | |
268 | td->iolog_f = NULL; | |
269 | td->iolog_buf = NULL; | |
270 | } | |
271 | ||
272 | /* | |
273 | * Read version 2 iolog data. It is enhanced to include per-file logging, | |
274 | * syncs, etc. | |
275 | */ | |
276 | static int read_iolog2(struct thread_data *td, FILE *f) | |
277 | { | |
278 | unsigned long long offset; | |
279 | unsigned int bytes; | |
280 | int reads, writes, waits, fileno = 0, file_action = 0; /* stupid gcc */ | |
281 | char *fname, *act; | |
282 | char *str, *p; | |
283 | enum fio_ddir rw; | |
284 | ||
285 | free_release_files(td); | |
286 | ||
287 | /* | |
288 | * Read in the read iolog and store it, reuse the infrastructure | |
289 | * for doing verifications. | |
290 | */ | |
291 | str = malloc(4096); | |
292 | fname = malloc(256+16); | |
293 | act = malloc(256+16); | |
294 | ||
295 | reads = writes = waits = 0; | |
296 | while ((p = fgets(str, 4096, f)) != NULL) { | |
297 | struct io_piece *ipo; | |
298 | int r; | |
299 | ||
300 | r = sscanf(p, "%256s %256s %llu %u", fname, act, &offset, | |
301 | &bytes); | |
302 | if (r == 4) { | |
303 | /* | |
304 | * Check action first | |
305 | */ | |
306 | if (!strcmp(act, "wait")) | |
307 | rw = DDIR_WAIT; | |
308 | else if (!strcmp(act, "read")) | |
309 | rw = DDIR_READ; | |
310 | else if (!strcmp(act, "write")) | |
311 | rw = DDIR_WRITE; | |
312 | else if (!strcmp(act, "sync")) | |
313 | rw = DDIR_SYNC; | |
314 | else if (!strcmp(act, "datasync")) | |
315 | rw = DDIR_DATASYNC; | |
316 | else if (!strcmp(act, "trim")) | |
317 | rw = DDIR_TRIM; | |
318 | else { | |
319 | log_err("fio: bad iolog file action: %s\n", | |
320 | act); | |
321 | continue; | |
322 | } | |
033ace1e | 323 | fileno = get_fileno(td, fname); |
ac9b9101 JA |
324 | } else if (r == 2) { |
325 | rw = DDIR_INVAL; | |
326 | if (!strcmp(act, "add")) { | |
5903e7b7 | 327 | fileno = add_file(td, fname, 0, 1); |
ac9b9101 JA |
328 | file_action = FIO_LOG_ADD_FILE; |
329 | continue; | |
330 | } else if (!strcmp(act, "open")) { | |
331 | fileno = get_fileno(td, fname); | |
332 | file_action = FIO_LOG_OPEN_FILE; | |
333 | } else if (!strcmp(act, "close")) { | |
334 | fileno = get_fileno(td, fname); | |
335 | file_action = FIO_LOG_CLOSE_FILE; | |
336 | } else { | |
337 | log_err("fio: bad iolog file action: %s\n", | |
338 | act); | |
339 | continue; | |
340 | } | |
341 | } else { | |
342 | log_err("bad iolog2: %s", p); | |
343 | continue; | |
344 | } | |
345 | ||
346 | if (rw == DDIR_READ) | |
347 | reads++; | |
348 | else if (rw == DDIR_WRITE) { | |
349 | /* | |
350 | * Don't add a write for ro mode | |
351 | */ | |
352 | if (read_only) | |
353 | continue; | |
354 | writes++; | |
355 | } else if (rw == DDIR_WAIT) { | |
356 | waits++; | |
357 | } else if (rw == DDIR_INVAL) { | |
358 | } else if (!ddir_sync(rw)) { | |
359 | log_err("bad ddir: %d\n", rw); | |
360 | continue; | |
361 | } | |
362 | ||
363 | /* | |
364 | * Make note of file | |
365 | */ | |
366 | ipo = malloc(sizeof(*ipo)); | |
367 | init_ipo(ipo); | |
368 | ipo->ddir = rw; | |
369 | if (rw == DDIR_WAIT) { | |
370 | ipo->delay = offset; | |
371 | } else { | |
372 | ipo->offset = offset; | |
373 | ipo->len = bytes; | |
42793d94 | 374 | if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw]) |
ac9b9101 JA |
375 | td->o.max_bs[rw] = bytes; |
376 | ipo->fileno = fileno; | |
377 | ipo->file_action = file_action; | |
378 | } | |
3c3ed070 | 379 | |
ac9b9101 JA |
380 | queue_io_piece(td, ipo); |
381 | } | |
382 | ||
383 | free(str); | |
384 | free(act); | |
385 | free(fname); | |
386 | ||
387 | if (writes && read_only) { | |
388 | log_err("fio: <%s> skips replay of %d writes due to" | |
389 | " read-only\n", td->o.name, writes); | |
390 | writes = 0; | |
391 | } | |
392 | ||
393 | if (!reads && !writes && !waits) | |
394 | return 1; | |
395 | else if (reads && !writes) | |
396 | td->o.td_ddir = TD_DDIR_READ; | |
397 | else if (!reads && writes) | |
398 | td->o.td_ddir = TD_DDIR_WRITE; | |
399 | else | |
400 | td->o.td_ddir = TD_DDIR_RW; | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | /* | |
406 | * open iolog, check version, and call appropriate parser | |
407 | */ | |
408 | static int init_iolog_read(struct thread_data *td) | |
409 | { | |
410 | char buffer[256], *p; | |
411 | FILE *f; | |
412 | int ret; | |
413 | ||
414 | f = fopen(td->o.read_iolog_file, "r"); | |
415 | if (!f) { | |
416 | perror("fopen read iolog"); | |
417 | return 1; | |
418 | } | |
419 | ||
420 | p = fgets(buffer, sizeof(buffer), f); | |
421 | if (!p) { | |
422 | td_verror(td, errno, "iolog read"); | |
423 | log_err("fio: unable to read iolog\n"); | |
424 | fclose(f); | |
425 | return 1; | |
426 | } | |
427 | ||
428 | /* | |
429 | * version 2 of the iolog stores a specific string as the | |
430 | * first line, check for that | |
431 | */ | |
432 | if (!strncmp(iolog_ver2, buffer, strlen(iolog_ver2))) | |
433 | ret = read_iolog2(td, f); | |
434 | else { | |
435 | log_err("fio: iolog version 1 is no longer supported\n"); | |
436 | ret = 1; | |
437 | } | |
438 | ||
439 | fclose(f); | |
440 | return ret; | |
441 | } | |
442 | ||
443 | /* | |
444 | * Set up a log for storing io patterns. | |
445 | */ | |
446 | static int init_iolog_write(struct thread_data *td) | |
447 | { | |
448 | struct fio_file *ff; | |
449 | FILE *f; | |
450 | unsigned int i; | |
451 | ||
452 | f = fopen(td->o.write_iolog_file, "a"); | |
453 | if (!f) { | |
454 | perror("fopen write iolog"); | |
455 | return 1; | |
456 | } | |
457 | ||
458 | /* | |
459 | * That's it for writing, setup a log buffer and we're done. | |
460 | */ | |
461 | td->iolog_f = f; | |
462 | td->iolog_buf = malloc(8192); | |
463 | setvbuf(f, td->iolog_buf, _IOFBF, 8192); | |
464 | ||
465 | /* | |
466 | * write our version line | |
467 | */ | |
468 | if (fprintf(f, "%s\n", iolog_ver2) < 0) { | |
469 | perror("iolog init\n"); | |
470 | return 1; | |
471 | } | |
472 | ||
473 | /* | |
474 | * add all known files | |
475 | */ | |
476 | for_each_file(td, ff, i) | |
477 | log_file(td, ff, FIO_LOG_ADD_FILE); | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | int init_iolog(struct thread_data *td) | |
483 | { | |
484 | int ret = 0; | |
485 | ||
486 | if (td->o.read_iolog_file) { | |
d95b34a6 JA |
487 | int need_swap; |
488 | ||
ac9b9101 JA |
489 | /* |
490 | * Check if it's a blktrace file and load that if possible. | |
491 | * Otherwise assume it's a normal log file and load that. | |
492 | */ | |
d95b34a6 JA |
493 | if (is_blktrace(td->o.read_iolog_file, &need_swap)) |
494 | ret = load_blktrace(td, td->o.read_iolog_file, need_swap); | |
ac9b9101 JA |
495 | else |
496 | ret = init_iolog_read(td); | |
497 | } else if (td->o.write_iolog_file) | |
498 | ret = init_iolog_write(td); | |
499 | ||
f01b34ae JA |
500 | if (ret) |
501 | td_verror(td, EINVAL, "failed initializing iolog"); | |
502 | ||
ac9b9101 JA |
503 | return ret; |
504 | } | |
505 | ||
ea51b956 | 506 | void setup_log(struct io_log **log, unsigned long avg_msec, int log_type) |
ac9b9101 JA |
507 | { |
508 | struct io_log *l = malloc(sizeof(*l)); | |
509 | ||
b8bc8cba | 510 | memset(l, 0, sizeof(*l)); |
ac9b9101 JA |
511 | l->nr_samples = 0; |
512 | l->max_samples = 1024; | |
ea51b956 | 513 | l->log_type = log_type; |
ac9b9101 | 514 | l->log = malloc(l->max_samples * sizeof(struct io_sample)); |
b8bc8cba | 515 | l->avg_msec = avg_msec; |
ac9b9101 JA |
516 | *log = l; |
517 | } | |
518 | ||
2e802282 JA |
519 | #ifdef CONFIG_SETVBUF |
520 | static void *set_file_buffer(FILE *f) | |
521 | { | |
522 | size_t size = 1048576; | |
523 | void *buf; | |
524 | ||
525 | buf = malloc(size); | |
526 | setvbuf(f, buf, _IOFBF, size); | |
527 | return buf; | |
528 | } | |
529 | ||
530 | static void clear_file_buffer(void *buf) | |
531 | { | |
532 | free(buf); | |
533 | } | |
534 | #else | |
535 | static void *set_file_buffer(FILE *f) | |
536 | { | |
537 | return NULL; | |
538 | } | |
539 | ||
540 | static void clear_file_buffer(void *buf) | |
541 | { | |
542 | } | |
543 | #endif | |
544 | ||
ac9b9101 JA |
545 | void __finish_log(struct io_log *log, const char *name) |
546 | { | |
547 | unsigned int i; | |
2e802282 | 548 | void *buf; |
ac9b9101 JA |
549 | FILE *f; |
550 | ||
551 | f = fopen(name, "a"); | |
552 | if (!f) { | |
553 | perror("fopen log"); | |
554 | return; | |
555 | } | |
556 | ||
2e802282 JA |
557 | buf = set_file_buffer(f); |
558 | ||
ac9b9101 | 559 | for (i = 0; i < log->nr_samples; i++) { |
1fae4855 JA |
560 | fprintf(f, "%lu, %lu, %u, %u\n", |
561 | (unsigned long) log->log[i].time, | |
562 | (unsigned long) log->log[i].val, | |
563 | log->log[i].ddir, log->log[i].bs); | |
ac9b9101 JA |
564 | } |
565 | ||
566 | fclose(f); | |
2e802282 | 567 | clear_file_buffer(buf); |
ac9b9101 JA |
568 | free(log->log); |
569 | free(log); | |
570 | } | |
571 | ||
905e3d4f JA |
572 | static int finish_log_named(struct thread_data *td, struct io_log *log, |
573 | const char *prefix, const char *postfix, | |
574 | int trylock) | |
ac9b9101 | 575 | { |
e53cf97b | 576 | char file_name[256]; |
ac9b9101 | 577 | |
98ffb8f3 | 578 | snprintf(file_name, sizeof(file_name), "%s_%s.log", prefix, postfix); |
1b42725f | 579 | |
243bfe19 JA |
580 | if (trylock) { |
581 | if (fio_trylock_file(file_name)) | |
582 | return 1; | |
583 | } else | |
584 | fio_lock_file(file_name); | |
585 | ||
f5ed765a | 586 | if (td->client_type == FIO_CLIENT_TYPE_GUI) { |
e53cf97b | 587 | fio_send_iolog(td, log, file_name); |
f5ed765a JA |
588 | free(log->log); |
589 | free(log); | |
590 | } else | |
e53cf97b | 591 | __finish_log(log, file_name); |
243bfe19 JA |
592 | |
593 | fio_unlock_file(file_name); | |
594 | return 0; | |
ac9b9101 JA |
595 | } |
596 | ||
905e3d4f JA |
597 | static int finish_log(struct thread_data *td, struct io_log *log, |
598 | const char *name, int trylock) | |
ac9b9101 | 599 | { |
243bfe19 | 600 | return finish_log_named(td, log, td->o.name, name, trylock); |
ac9b9101 | 601 | } |
905e3d4f JA |
602 | |
603 | static int write_this_log(struct thread_data *td, struct io_log *log, | |
604 | const char *log_file, const char *name, int try) | |
605 | { | |
606 | int ret; | |
607 | ||
608 | if (!log) | |
609 | return 0; | |
610 | ||
611 | if (log_file) | |
612 | ret = finish_log_named(td, log, log_file, name, try); | |
613 | else | |
614 | ret = finish_log(td, log, name, try); | |
615 | ||
616 | return ret; | |
617 | } | |
618 | ||
619 | static int write_iops_log(struct thread_data *td, int try) | |
620 | { | |
621 | struct thread_options *o = &td->o; | |
622 | ||
623 | return write_this_log(td, td->iops_log, o->iops_log_file, "iops", try); | |
624 | } | |
625 | ||
626 | static int write_slat_log(struct thread_data *td, int try) | |
627 | { | |
628 | struct thread_options *o = &td->o; | |
629 | ||
630 | return write_this_log(td, td->slat_log, o->lat_log_file, "slat", try); | |
631 | } | |
632 | ||
633 | static int write_clat_log(struct thread_data *td, int try) | |
634 | { | |
635 | struct thread_options *o = &td->o; | |
636 | ||
637 | return write_this_log(td, td->clat_log, o->lat_log_file, "clat" , try); | |
638 | } | |
639 | ||
640 | static int write_lat_log(struct thread_data *td, int try) | |
641 | { | |
642 | struct thread_options *o = &td->o; | |
643 | ||
644 | return write_this_log(td, td->lat_log, o->lat_log_file, "lat", try); | |
645 | } | |
646 | ||
647 | static int write_bandw_log(struct thread_data *td, int try) | |
648 | { | |
649 | struct thread_options *o = &td->o; | |
650 | ||
651 | return write_this_log(td, td->bw_log, o->bw_log_file, "bw", try); | |
652 | } | |
653 | ||
654 | enum { | |
655 | BW_LOG_MASK = 1, | |
656 | LAT_LOG_MASK = 2, | |
657 | SLAT_LOG_MASK = 4, | |
658 | CLAT_LOG_MASK = 8, | |
659 | IOPS_LOG_MASK = 16, | |
660 | ||
905e3d4f JA |
661 | ALL_LOG_NR = 5, |
662 | }; | |
663 | ||
664 | struct log_type { | |
665 | unsigned int mask; | |
666 | int (*fn)(struct thread_data *, int); | |
667 | }; | |
668 | ||
669 | static struct log_type log_types[] = { | |
670 | { | |
671 | .mask = BW_LOG_MASK, | |
672 | .fn = write_bandw_log, | |
673 | }, | |
674 | { | |
675 | .mask = LAT_LOG_MASK, | |
676 | .fn = write_lat_log, | |
677 | }, | |
678 | { | |
679 | .mask = SLAT_LOG_MASK, | |
680 | .fn = write_slat_log, | |
681 | }, | |
682 | { | |
683 | .mask = CLAT_LOG_MASK, | |
684 | .fn = write_clat_log, | |
685 | }, | |
686 | { | |
687 | .mask = IOPS_LOG_MASK, | |
688 | .fn = write_iops_log, | |
689 | }, | |
690 | }; | |
691 | ||
692 | void fio_writeout_logs(struct thread_data *td) | |
693 | { | |
ea5409f9 | 694 | unsigned int log_mask = 0; |
905e3d4f JA |
695 | unsigned int log_left = ALL_LOG_NR; |
696 | int old_state, i; | |
697 | ||
698 | old_state = td_bump_runstate(td, TD_FINISHING); | |
699 | ||
700 | finalize_logs(td); | |
701 | ||
702 | while (log_left) { | |
703 | int prev_log_left = log_left; | |
704 | ||
705 | for (i = 0; i < ALL_LOG_NR && log_left; i++) { | |
706 | struct log_type *lt = &log_types[i]; | |
707 | int ret; | |
708 | ||
ea5409f9 | 709 | if (!(log_mask & lt->mask)) { |
905e3d4f JA |
710 | ret = lt->fn(td, log_left != 1); |
711 | if (!ret) { | |
712 | log_left--; | |
ea5409f9 | 713 | log_mask |= lt->mask; |
905e3d4f JA |
714 | } |
715 | } | |
716 | } | |
717 | ||
718 | if (prev_log_left == log_left) | |
719 | usleep(5000); | |
720 | } | |
721 | ||
722 | td_restore_runstate(td, old_state); | |
723 | } |