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> | |
aee2ab67 JA |
9 | #ifdef CONFIG_ZLIB |
10 | #include <zlib.h> | |
11 | #endif | |
12 | ||
ac9b9101 JA |
13 | #include "flist.h" |
14 | #include "fio.h" | |
15 | #include "verify.h" | |
16 | #include "trim.h" | |
243bfe19 | 17 | #include "filelock.h" |
aee2ab67 | 18 | #include "tp.h" |
ac9b9101 JA |
19 | |
20 | static const char iolog_ver2[] = "fio version 2 iolog"; | |
21 | ||
aee2ab67 JA |
22 | #ifdef CONFIG_ZLIB |
23 | ||
24 | struct iolog_compress { | |
25 | struct flist_head list; | |
26 | void *buf; | |
27 | size_t len; | |
28 | unsigned int seq; | |
29 | }; | |
30 | ||
31 | #define GZ_CHUNK 131072 | |
32 | ||
33 | static struct iolog_compress *get_new_chunk(unsigned int seq) | |
34 | { | |
35 | struct iolog_compress *c; | |
36 | ||
37 | c = malloc(sizeof(*c)); | |
38 | INIT_FLIST_HEAD(&c->list); | |
39 | c->buf = malloc(GZ_CHUNK); | |
40 | c->len = 0; | |
41 | c->seq = seq; | |
42 | return c; | |
43 | } | |
44 | ||
45 | static void free_chunk(struct iolog_compress *ic) | |
46 | { | |
47 | free(ic->buf); | |
48 | free(ic); | |
49 | } | |
50 | ||
51 | #endif | |
52 | ||
ac9b9101 JA |
53 | void queue_io_piece(struct thread_data *td, struct io_piece *ipo) |
54 | { | |
55 | flist_add_tail(&ipo->list, &td->io_log_list); | |
56 | td->total_io_size += ipo->len; | |
57 | } | |
58 | ||
59 | void log_io_u(struct thread_data *td, struct io_u *io_u) | |
60 | { | |
61 | const char *act[] = { "read", "write", "sync", "datasync", | |
62 | "sync_file_range", "wait", "trim" }; | |
63 | ||
64 | assert(io_u->ddir <= 6); | |
65 | ||
66 | if (!td->o.write_iolog_file) | |
67 | return; | |
68 | ||
69 | fprintf(td->iolog_f, "%s %s %llu %lu\n", io_u->file->file_name, | |
70 | act[io_u->ddir], io_u->offset, | |
71 | io_u->buflen); | |
72 | } | |
73 | ||
74 | void log_file(struct thread_data *td, struct fio_file *f, | |
75 | enum file_log_act what) | |
76 | { | |
77 | const char *act[] = { "add", "open", "close" }; | |
78 | ||
79 | assert(what < 3); | |
80 | ||
81 | if (!td->o.write_iolog_file) | |
82 | return; | |
83 | ||
84 | ||
85 | /* | |
86 | * this happens on the pre-open/close done before the job starts | |
87 | */ | |
88 | if (!td->iolog_f) | |
89 | return; | |
90 | ||
91 | fprintf(td->iolog_f, "%s %s\n", f->file_name, act[what]); | |
92 | } | |
93 | ||
94 | static void iolog_delay(struct thread_data *td, unsigned long delay) | |
95 | { | |
96 | unsigned long usec = utime_since_now(&td->last_issue); | |
30b18672 | 97 | unsigned long this_delay; |
ac9b9101 JA |
98 | |
99 | if (delay < usec) | |
100 | return; | |
101 | ||
102 | delay -= usec; | |
103 | ||
104 | /* | |
105 | * less than 100 usec delay, just regard it as noise | |
106 | */ | |
107 | if (delay < 100) | |
108 | return; | |
109 | ||
30b18672 JA |
110 | while (delay && !td->terminate) { |
111 | this_delay = delay; | |
112 | if (this_delay > 500000) | |
113 | this_delay = 500000; | |
114 | ||
115 | usec_sleep(td, this_delay); | |
116 | delay -= this_delay; | |
117 | } | |
ac9b9101 JA |
118 | } |
119 | ||
120 | static int ipo_special(struct thread_data *td, struct io_piece *ipo) | |
121 | { | |
122 | struct fio_file *f; | |
123 | int ret; | |
124 | ||
125 | /* | |
126 | * Not a special ipo | |
127 | */ | |
128 | if (ipo->ddir != DDIR_INVAL) | |
129 | return 0; | |
130 | ||
131 | f = td->files[ipo->fileno]; | |
132 | ||
133 | switch (ipo->file_action) { | |
134 | case FIO_LOG_OPEN_FILE: | |
135 | ret = td_io_open_file(td, f); | |
136 | if (!ret) | |
137 | break; | |
138 | td_verror(td, ret, "iolog open file"); | |
139 | return -1; | |
140 | case FIO_LOG_CLOSE_FILE: | |
141 | td_io_close_file(td, f); | |
142 | break; | |
143 | case FIO_LOG_UNLINK_FILE: | |
144 | unlink(f->file_name); | |
145 | break; | |
146 | default: | |
147 | log_err("fio: bad file action %d\n", ipo->file_action); | |
148 | break; | |
149 | } | |
150 | ||
151 | return 1; | |
152 | } | |
153 | ||
154 | int read_iolog_get(struct thread_data *td, struct io_u *io_u) | |
155 | { | |
156 | struct io_piece *ipo; | |
157 | unsigned long elapsed; | |
3c3ed070 | 158 | |
ac9b9101 JA |
159 | while (!flist_empty(&td->io_log_list)) { |
160 | int ret; | |
161 | ||
162 | ipo = flist_entry(td->io_log_list.next, struct io_piece, list); | |
163 | flist_del(&ipo->list); | |
164 | remove_trim_entry(td, ipo); | |
165 | ||
166 | ret = ipo_special(td, ipo); | |
167 | if (ret < 0) { | |
168 | free(ipo); | |
169 | break; | |
170 | } else if (ret > 0) { | |
171 | free(ipo); | |
172 | continue; | |
173 | } | |
174 | ||
175 | io_u->ddir = ipo->ddir; | |
176 | if (ipo->ddir != DDIR_WAIT) { | |
177 | io_u->offset = ipo->offset; | |
178 | io_u->buflen = ipo->len; | |
179 | io_u->file = td->files[ipo->fileno]; | |
180 | get_file(io_u->file); | |
181 | dprint(FD_IO, "iolog: get %llu/%lu/%s\n", io_u->offset, | |
182 | io_u->buflen, io_u->file->file_name); | |
183 | if (ipo->delay) | |
184 | iolog_delay(td, ipo->delay); | |
185 | } else { | |
186 | elapsed = mtime_since_genesis(); | |
187 | if (ipo->delay > elapsed) | |
188 | usec_sleep(td, (ipo->delay - elapsed) * 1000); | |
ac9b9101 JA |
189 | } |
190 | ||
191 | free(ipo); | |
3c3ed070 | 192 | |
ac9b9101 JA |
193 | if (io_u->ddir != DDIR_WAIT) |
194 | return 0; | |
195 | } | |
196 | ||
197 | td->done = 1; | |
198 | return 1; | |
199 | } | |
200 | ||
201 | void prune_io_piece_log(struct thread_data *td) | |
202 | { | |
203 | struct io_piece *ipo; | |
204 | struct rb_node *n; | |
205 | ||
206 | while ((n = rb_first(&td->io_hist_tree)) != NULL) { | |
207 | ipo = rb_entry(n, struct io_piece, rb_node); | |
208 | rb_erase(n, &td->io_hist_tree); | |
209 | remove_trim_entry(td, ipo); | |
210 | td->io_hist_len--; | |
211 | free(ipo); | |
212 | } | |
213 | ||
214 | while (!flist_empty(&td->io_hist_list)) { | |
215 | ipo = flist_entry(td->io_hist_list.next, struct io_piece, list); | |
216 | flist_del(&ipo->list); | |
217 | remove_trim_entry(td, ipo); | |
218 | td->io_hist_len--; | |
219 | free(ipo); | |
220 | } | |
221 | } | |
222 | ||
223 | /* | |
224 | * log a successful write, so we can unwind the log for verify | |
225 | */ | |
226 | void log_io_piece(struct thread_data *td, struct io_u *io_u) | |
227 | { | |
228 | struct rb_node **p, *parent; | |
229 | struct io_piece *ipo, *__ipo; | |
230 | ||
231 | ipo = malloc(sizeof(struct io_piece)); | |
232 | init_ipo(ipo); | |
233 | ipo->file = io_u->file; | |
234 | ipo->offset = io_u->offset; | |
235 | ipo->len = io_u->buflen; | |
da0a7bd2 | 236 | ipo->numberio = io_u->numberio; |
f9401285 JA |
237 | ipo->flags = IP_F_IN_FLIGHT; |
238 | ||
239 | io_u->ipo = ipo; | |
ac9b9101 JA |
240 | |
241 | if (io_u_should_trim(td, io_u)) { | |
242 | flist_add_tail(&ipo->trim_list, &td->trim_list); | |
243 | td->trim_entries++; | |
244 | } | |
245 | ||
246 | /* | |
247 | * We don't need to sort the entries, if: | |
248 | * | |
249 | * Sequential writes, or | |
250 | * Random writes that lay out the file as it goes along | |
251 | * | |
252 | * For both these cases, just reading back data in the order we | |
253 | * wrote it out is the fastest. | |
254 | * | |
255 | * One exception is if we don't have a random map AND we are doing | |
256 | * verifies, in that case we need to check for duplicate blocks and | |
257 | * drop the old one, which we rely on the rb insert/lookup for | |
258 | * handling. | |
259 | */ | |
c4b6117b | 260 | if (((!td->o.verifysort) || !td_random(td) || !td->o.overwrite) && |
ac9b9101 JA |
261 | (file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) { |
262 | INIT_FLIST_HEAD(&ipo->list); | |
263 | flist_add_tail(&ipo->list, &td->io_hist_list); | |
264 | ipo->flags |= IP_F_ONLIST; | |
265 | td->io_hist_len++; | |
266 | return; | |
267 | } | |
268 | ||
269 | RB_CLEAR_NODE(&ipo->rb_node); | |
270 | ||
271 | /* | |
272 | * Sort the entry into the verification list | |
273 | */ | |
274 | restart: | |
275 | p = &td->io_hist_tree.rb_node; | |
276 | parent = NULL; | |
277 | while (*p) { | |
278 | parent = *p; | |
279 | ||
280 | __ipo = rb_entry(parent, struct io_piece, rb_node); | |
281 | if (ipo->file < __ipo->file) | |
282 | p = &(*p)->rb_left; | |
283 | else if (ipo->file > __ipo->file) | |
284 | p = &(*p)->rb_right; | |
285 | else if (ipo->offset < __ipo->offset) | |
286 | p = &(*p)->rb_left; | |
287 | else if (ipo->offset > __ipo->offset) | |
288 | p = &(*p)->rb_right; | |
289 | else { | |
885ac623 JA |
290 | dprint(FD_IO, "iolog: overlap %llu/%lu, %llu/%lu", |
291 | __ipo->offset, __ipo->len, | |
292 | ipo->offset, ipo->len); | |
ac9b9101 JA |
293 | td->io_hist_len--; |
294 | rb_erase(parent, &td->io_hist_tree); | |
295 | remove_trim_entry(td, __ipo); | |
296 | free(__ipo); | |
297 | goto restart; | |
298 | } | |
299 | } | |
300 | ||
301 | rb_link_node(&ipo->rb_node, parent, p); | |
302 | rb_insert_color(&ipo->rb_node, &td->io_hist_tree); | |
303 | ipo->flags |= IP_F_ONRB; | |
304 | td->io_hist_len++; | |
305 | } | |
306 | ||
890b6656 JA |
307 | void unlog_io_piece(struct thread_data *td, struct io_u *io_u) |
308 | { | |
309 | struct io_piece *ipo = io_u->ipo; | |
310 | ||
311 | if (!ipo) | |
312 | return; | |
313 | ||
314 | if (ipo->flags & IP_F_ONRB) | |
315 | rb_erase(&ipo->rb_node, &td->io_hist_tree); | |
316 | else if (ipo->flags & IP_F_ONLIST) | |
317 | flist_del(&ipo->list); | |
318 | ||
319 | free(ipo); | |
320 | io_u->ipo = NULL; | |
321 | td->io_hist_len--; | |
322 | } | |
323 | ||
324 | void trim_io_piece(struct thread_data *td, struct io_u *io_u) | |
325 | { | |
326 | struct io_piece *ipo = io_u->ipo; | |
327 | ||
328 | if (!ipo) | |
329 | return; | |
330 | ||
331 | ipo->len = io_u->xfer_buflen - io_u->resid; | |
332 | } | |
333 | ||
ac9b9101 JA |
334 | void write_iolog_close(struct thread_data *td) |
335 | { | |
336 | fflush(td->iolog_f); | |
337 | fclose(td->iolog_f); | |
338 | free(td->iolog_buf); | |
339 | td->iolog_f = NULL; | |
340 | td->iolog_buf = NULL; | |
341 | } | |
342 | ||
343 | /* | |
344 | * Read version 2 iolog data. It is enhanced to include per-file logging, | |
345 | * syncs, etc. | |
346 | */ | |
347 | static int read_iolog2(struct thread_data *td, FILE *f) | |
348 | { | |
349 | unsigned long long offset; | |
350 | unsigned int bytes; | |
351 | int reads, writes, waits, fileno = 0, file_action = 0; /* stupid gcc */ | |
352 | char *fname, *act; | |
353 | char *str, *p; | |
354 | enum fio_ddir rw; | |
355 | ||
356 | free_release_files(td); | |
357 | ||
358 | /* | |
359 | * Read in the read iolog and store it, reuse the infrastructure | |
360 | * for doing verifications. | |
361 | */ | |
362 | str = malloc(4096); | |
363 | fname = malloc(256+16); | |
364 | act = malloc(256+16); | |
365 | ||
366 | reads = writes = waits = 0; | |
367 | while ((p = fgets(str, 4096, f)) != NULL) { | |
368 | struct io_piece *ipo; | |
369 | int r; | |
370 | ||
371 | r = sscanf(p, "%256s %256s %llu %u", fname, act, &offset, | |
372 | &bytes); | |
373 | if (r == 4) { | |
374 | /* | |
375 | * Check action first | |
376 | */ | |
377 | if (!strcmp(act, "wait")) | |
378 | rw = DDIR_WAIT; | |
379 | else if (!strcmp(act, "read")) | |
380 | rw = DDIR_READ; | |
381 | else if (!strcmp(act, "write")) | |
382 | rw = DDIR_WRITE; | |
383 | else if (!strcmp(act, "sync")) | |
384 | rw = DDIR_SYNC; | |
385 | else if (!strcmp(act, "datasync")) | |
386 | rw = DDIR_DATASYNC; | |
387 | else if (!strcmp(act, "trim")) | |
388 | rw = DDIR_TRIM; | |
389 | else { | |
390 | log_err("fio: bad iolog file action: %s\n", | |
391 | act); | |
392 | continue; | |
393 | } | |
033ace1e | 394 | fileno = get_fileno(td, fname); |
ac9b9101 JA |
395 | } else if (r == 2) { |
396 | rw = DDIR_INVAL; | |
397 | if (!strcmp(act, "add")) { | |
5903e7b7 | 398 | fileno = add_file(td, fname, 0, 1); |
ac9b9101 JA |
399 | file_action = FIO_LOG_ADD_FILE; |
400 | continue; | |
401 | } else if (!strcmp(act, "open")) { | |
402 | fileno = get_fileno(td, fname); | |
403 | file_action = FIO_LOG_OPEN_FILE; | |
404 | } else if (!strcmp(act, "close")) { | |
405 | fileno = get_fileno(td, fname); | |
406 | file_action = FIO_LOG_CLOSE_FILE; | |
407 | } else { | |
408 | log_err("fio: bad iolog file action: %s\n", | |
409 | act); | |
410 | continue; | |
411 | } | |
412 | } else { | |
413 | log_err("bad iolog2: %s", p); | |
414 | continue; | |
415 | } | |
416 | ||
417 | if (rw == DDIR_READ) | |
418 | reads++; | |
419 | else if (rw == DDIR_WRITE) { | |
420 | /* | |
421 | * Don't add a write for ro mode | |
422 | */ | |
423 | if (read_only) | |
424 | continue; | |
425 | writes++; | |
426 | } else if (rw == DDIR_WAIT) { | |
427 | waits++; | |
428 | } else if (rw == DDIR_INVAL) { | |
429 | } else if (!ddir_sync(rw)) { | |
430 | log_err("bad ddir: %d\n", rw); | |
431 | continue; | |
432 | } | |
433 | ||
434 | /* | |
435 | * Make note of file | |
436 | */ | |
437 | ipo = malloc(sizeof(*ipo)); | |
438 | init_ipo(ipo); | |
439 | ipo->ddir = rw; | |
440 | if (rw == DDIR_WAIT) { | |
441 | ipo->delay = offset; | |
442 | } else { | |
443 | ipo->offset = offset; | |
444 | ipo->len = bytes; | |
42793d94 | 445 | if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw]) |
ac9b9101 JA |
446 | td->o.max_bs[rw] = bytes; |
447 | ipo->fileno = fileno; | |
448 | ipo->file_action = file_action; | |
70afff59 | 449 | td->o.size += bytes; |
ac9b9101 | 450 | } |
3c3ed070 | 451 | |
ac9b9101 JA |
452 | queue_io_piece(td, ipo); |
453 | } | |
454 | ||
455 | free(str); | |
456 | free(act); | |
457 | free(fname); | |
458 | ||
459 | if (writes && read_only) { | |
460 | log_err("fio: <%s> skips replay of %d writes due to" | |
461 | " read-only\n", td->o.name, writes); | |
462 | writes = 0; | |
463 | } | |
464 | ||
465 | if (!reads && !writes && !waits) | |
466 | return 1; | |
467 | else if (reads && !writes) | |
468 | td->o.td_ddir = TD_DDIR_READ; | |
469 | else if (!reads && writes) | |
470 | td->o.td_ddir = TD_DDIR_WRITE; | |
471 | else | |
472 | td->o.td_ddir = TD_DDIR_RW; | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | /* | |
478 | * open iolog, check version, and call appropriate parser | |
479 | */ | |
480 | static int init_iolog_read(struct thread_data *td) | |
481 | { | |
482 | char buffer[256], *p; | |
483 | FILE *f; | |
484 | int ret; | |
485 | ||
486 | f = fopen(td->o.read_iolog_file, "r"); | |
487 | if (!f) { | |
488 | perror("fopen read iolog"); | |
489 | return 1; | |
490 | } | |
491 | ||
492 | p = fgets(buffer, sizeof(buffer), f); | |
493 | if (!p) { | |
494 | td_verror(td, errno, "iolog read"); | |
495 | log_err("fio: unable to read iolog\n"); | |
496 | fclose(f); | |
497 | return 1; | |
498 | } | |
499 | ||
500 | /* | |
501 | * version 2 of the iolog stores a specific string as the | |
502 | * first line, check for that | |
503 | */ | |
504 | if (!strncmp(iolog_ver2, buffer, strlen(iolog_ver2))) | |
505 | ret = read_iolog2(td, f); | |
506 | else { | |
507 | log_err("fio: iolog version 1 is no longer supported\n"); | |
508 | ret = 1; | |
509 | } | |
510 | ||
511 | fclose(f); | |
512 | return ret; | |
513 | } | |
514 | ||
515 | /* | |
516 | * Set up a log for storing io patterns. | |
517 | */ | |
518 | static int init_iolog_write(struct thread_data *td) | |
519 | { | |
520 | struct fio_file *ff; | |
521 | FILE *f; | |
522 | unsigned int i; | |
523 | ||
524 | f = fopen(td->o.write_iolog_file, "a"); | |
525 | if (!f) { | |
526 | perror("fopen write iolog"); | |
527 | return 1; | |
528 | } | |
529 | ||
530 | /* | |
531 | * That's it for writing, setup a log buffer and we're done. | |
532 | */ | |
533 | td->iolog_f = f; | |
534 | td->iolog_buf = malloc(8192); | |
535 | setvbuf(f, td->iolog_buf, _IOFBF, 8192); | |
536 | ||
537 | /* | |
538 | * write our version line | |
539 | */ | |
540 | if (fprintf(f, "%s\n", iolog_ver2) < 0) { | |
541 | perror("iolog init\n"); | |
542 | return 1; | |
543 | } | |
544 | ||
545 | /* | |
546 | * add all known files | |
547 | */ | |
548 | for_each_file(td, ff, i) | |
549 | log_file(td, ff, FIO_LOG_ADD_FILE); | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | int init_iolog(struct thread_data *td) | |
555 | { | |
556 | int ret = 0; | |
557 | ||
558 | if (td->o.read_iolog_file) { | |
d95b34a6 JA |
559 | int need_swap; |
560 | ||
ac9b9101 JA |
561 | /* |
562 | * Check if it's a blktrace file and load that if possible. | |
563 | * Otherwise assume it's a normal log file and load that. | |
564 | */ | |
d95b34a6 JA |
565 | if (is_blktrace(td->o.read_iolog_file, &need_swap)) |
566 | ret = load_blktrace(td, td->o.read_iolog_file, need_swap); | |
ac9b9101 JA |
567 | else |
568 | ret = init_iolog_read(td); | |
569 | } else if (td->o.write_iolog_file) | |
570 | ret = init_iolog_write(td); | |
571 | ||
f01b34ae JA |
572 | if (ret) |
573 | td_verror(td, EINVAL, "failed initializing iolog"); | |
574 | ||
ac9b9101 JA |
575 | return ret; |
576 | } | |
577 | ||
aee2ab67 JA |
578 | void setup_log(struct io_log **log, struct log_params *p, |
579 | const char *filename) | |
ac9b9101 JA |
580 | { |
581 | struct io_log *l = malloc(sizeof(*l)); | |
582 | ||
b8bc8cba | 583 | memset(l, 0, sizeof(*l)); |
ac9b9101 JA |
584 | l->nr_samples = 0; |
585 | l->max_samples = 1024; | |
aee2ab67 JA |
586 | l->log_type = p->log_type; |
587 | l->log_offset = p->log_offset; | |
588 | l->log_gz = p->log_gz; | |
ae588852 | 589 | l->log = malloc(l->max_samples * log_entry_sz(l)); |
aee2ab67 | 590 | l->avg_msec = p->avg_msec; |
cb7e0ace | 591 | l->filename = strdup(filename); |
aee2ab67 JA |
592 | l->td = p->td; |
593 | ||
594 | INIT_FLIST_HEAD(&l->chunk_list); | |
595 | ||
596 | if (l->log_gz && !p->td) | |
597 | l->log_gz = 0; | |
598 | else if (l->log_gz) { | |
599 | pthread_mutex_init(&l->chunk_lock, NULL); | |
600 | p->td->flags |= TD_F_COMPRESS_LOG; | |
601 | } | |
602 | ||
ac9b9101 JA |
603 | *log = l; |
604 | } | |
605 | ||
2e802282 JA |
606 | #ifdef CONFIG_SETVBUF |
607 | static void *set_file_buffer(FILE *f) | |
608 | { | |
609 | size_t size = 1048576; | |
610 | void *buf; | |
611 | ||
612 | buf = malloc(size); | |
613 | setvbuf(f, buf, _IOFBF, size); | |
614 | return buf; | |
615 | } | |
616 | ||
617 | static void clear_file_buffer(void *buf) | |
618 | { | |
619 | free(buf); | |
620 | } | |
621 | #else | |
622 | static void *set_file_buffer(FILE *f) | |
623 | { | |
624 | return NULL; | |
625 | } | |
626 | ||
627 | static void clear_file_buffer(void *buf) | |
628 | { | |
629 | } | |
630 | #endif | |
631 | ||
518dac09 | 632 | void free_log(struct io_log *log) |
cb7e0ace JA |
633 | { |
634 | free(log->log); | |
635 | free(log->filename); | |
636 | free(log); | |
637 | } | |
638 | ||
aee2ab67 JA |
639 | static void flush_samples(FILE *f, void *samples, uint64_t nr_samples, |
640 | int log_offset) | |
ac9b9101 | 641 | { |
ae588852 | 642 | uint64_t i; |
ac9b9101 | 643 | |
aee2ab67 JA |
644 | for (i = 0; i < nr_samples; i++) { |
645 | struct io_sample *s = __get_sample(samples, log_offset, i); | |
ac9b9101 | 646 | |
aee2ab67 | 647 | if (!log_offset) { |
ae588852 JA |
648 | fprintf(f, "%lu, %lu, %u, %u\n", |
649 | (unsigned long) s->time, | |
650 | (unsigned long) s->val, | |
651 | s->ddir, s->bs); | |
652 | } else { | |
653 | struct io_sample_offset *so = (void *) s; | |
654 | ||
655 | fprintf(f, "%lu, %lu, %u, %u, %llu\n", | |
656 | (unsigned long) s->time, | |
657 | (unsigned long) s->val, | |
658 | s->ddir, s->bs, | |
659 | (unsigned long long) so->offset); | |
660 | } | |
ac9b9101 | 661 | } |
aee2ab67 JA |
662 | } |
663 | ||
664 | #ifdef CONFIG_ZLIB | |
665 | static int z_stream_init(z_stream *stream) | |
666 | { | |
667 | stream->zalloc = Z_NULL; | |
668 | stream->zfree = Z_NULL; | |
669 | stream->opaque = Z_NULL; | |
670 | stream->next_in = Z_NULL; | |
671 | ||
672 | if (inflateInit(stream) != Z_OK) | |
673 | return 1; | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
678 | struct flush_chunk_iter { | |
679 | unsigned int seq; | |
680 | void *buf; | |
681 | size_t buf_size; | |
682 | size_t buf_used; | |
683 | size_t chunk_sz; | |
684 | }; | |
685 | ||
686 | static void finish_chunk(z_stream *stream, int log_offset, FILE *f, | |
687 | struct flush_chunk_iter *iter) | |
688 | { | |
689 | uint64_t nr_samples; | |
690 | int ret; | |
691 | ||
692 | ret = inflateEnd(stream); | |
693 | if (ret != Z_OK) | |
694 | log_err("fio: failed to end log inflation (%d)\n", ret); | |
695 | ||
696 | nr_samples = iter->buf_used / __log_entry_sz(log_offset); | |
697 | flush_samples(f, iter->buf, nr_samples, log_offset); | |
698 | free(iter->buf); | |
699 | iter->buf = NULL; | |
700 | iter->buf_size = iter->buf_used = 0; | |
701 | } | |
702 | ||
703 | static int flush_chunk(struct iolog_compress *ic, int log_offset, FILE *f, | |
704 | z_stream *stream, struct flush_chunk_iter *iter) | |
705 | { | |
706 | if (ic->seq != iter->seq) { | |
707 | if (iter->seq) | |
708 | finish_chunk(stream, log_offset, f, iter); | |
709 | ||
710 | z_stream_init(stream); | |
711 | iter->seq = ic->seq; | |
712 | } | |
713 | ||
714 | stream->avail_in = ic->len; | |
715 | stream->next_in = ic->buf; | |
716 | ||
717 | if (!iter->buf_size) { | |
718 | iter->buf_size = iter->chunk_sz; | |
719 | iter->buf = malloc(iter->buf_size); | |
720 | } | |
721 | ||
722 | while (stream->avail_in) { | |
723 | int err; | |
724 | ||
725 | stream->avail_out = iter->buf_size - iter->buf_used; | |
726 | stream->next_out = iter->buf + iter->buf_used; | |
727 | ||
728 | err = inflate(stream, Z_NO_FLUSH); | |
729 | if (err < 0) { | |
730 | log_err("fio: failed inflating log: %d\n", err); | |
731 | break; | |
732 | } | |
733 | ||
734 | iter->buf_used += iter->buf_size - iter->buf_used - stream->avail_out; | |
735 | } | |
736 | ||
737 | free_chunk(ic); | |
738 | return 0; | |
739 | } | |
740 | ||
741 | static void flush_gz_chunks(struct io_log *log, FILE *f) | |
742 | { | |
743 | struct flush_chunk_iter iter = { .chunk_sz = log->log_gz, }; | |
744 | struct flist_head *node; | |
745 | z_stream stream; | |
746 | ||
747 | while (!flist_empty(&log->chunk_list)) { | |
748 | struct iolog_compress *ic; | |
749 | ||
750 | node = log->chunk_list.next; | |
751 | ic = flist_entry(node, struct iolog_compress, list); | |
752 | flist_del(&ic->list); | |
753 | flush_chunk(ic, log->log_offset, f, &stream, &iter); | |
754 | } | |
755 | ||
756 | if (iter.seq) { | |
757 | finish_chunk(&stream, log->log_offset, f, &iter); | |
758 | free(iter.buf); | |
759 | } | |
760 | } | |
761 | ||
762 | #else | |
763 | ||
764 | static void flush_gz_chunks(struct io_log *log, FILE *f) | |
765 | { | |
766 | } | |
767 | ||
768 | #endif | |
769 | ||
770 | void flush_log(struct io_log *log) | |
771 | { | |
772 | void *buf; | |
773 | FILE *f; | |
774 | ||
775 | f = fopen(log->filename, "w"); | |
776 | if (!f) { | |
777 | perror("fopen log"); | |
778 | return; | |
779 | } | |
780 | ||
781 | buf = set_file_buffer(f); | |
782 | ||
783 | flush_gz_chunks(log, f); | |
784 | ||
785 | flush_samples(f, log->log, log->nr_samples, log->log_offset); | |
ac9b9101 JA |
786 | |
787 | fclose(f); | |
2e802282 | 788 | clear_file_buffer(buf); |
ac9b9101 JA |
789 | } |
790 | ||
cb7e0ace | 791 | static int finish_log(struct thread_data *td, struct io_log *log, int trylock) |
ac9b9101 | 792 | { |
aee2ab67 JA |
793 | if (td->tp_data) |
794 | iolog_flush(log, 1); | |
795 | ||
243bfe19 | 796 | if (trylock) { |
cb7e0ace | 797 | if (fio_trylock_file(log->filename)) |
243bfe19 JA |
798 | return 1; |
799 | } else | |
cb7e0ace | 800 | fio_lock_file(log->filename); |
243bfe19 | 801 | |
aee2ab67 | 802 | if (td->client_type == FIO_CLIENT_TYPE_GUI) |
cb7e0ace | 803 | fio_send_iolog(td, log, log->filename); |
aee2ab67 JA |
804 | else |
805 | flush_log(log); | |
243bfe19 | 806 | |
cb7e0ace | 807 | fio_unlock_file(log->filename); |
518dac09 | 808 | free_log(log); |
243bfe19 | 809 | return 0; |
ac9b9101 JA |
810 | } |
811 | ||
aee2ab67 JA |
812 | #ifdef CONFIG_ZLIB |
813 | ||
814 | struct iolog_flush_data { | |
815 | struct tp_work work; | |
816 | struct io_log *log; | |
817 | void *samples; | |
818 | uint64_t nr_samples; | |
819 | }; | |
820 | ||
821 | static int gz_work(struct tp_work *work) | |
822 | { | |
823 | struct iolog_flush_data *data; | |
824 | struct iolog_compress *c; | |
825 | struct flist_head list; | |
826 | unsigned int seq; | |
827 | z_stream stream; | |
828 | size_t total = 0; | |
829 | int ret; | |
830 | ||
831 | INIT_FLIST_HEAD(&list); | |
832 | ||
833 | data = container_of(work, struct iolog_flush_data, work); | |
834 | ||
835 | stream.zalloc = Z_NULL; | |
836 | stream.zfree = Z_NULL; | |
837 | stream.opaque = Z_NULL; | |
838 | ||
839 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
840 | log_err("fio: failed to init gz stream\n"); | |
841 | return 0; | |
842 | } | |
843 | ||
844 | seq = ++data->log->chunk_seq; | |
845 | stream.next_in = (void *) data->samples; | |
846 | stream.avail_in = data->nr_samples * log_entry_sz(data->log); | |
847 | ||
848 | do { | |
849 | c = get_new_chunk(seq); | |
850 | stream.avail_out = GZ_CHUNK; | |
851 | stream.next_out = c->buf; | |
852 | ret = deflate(&stream, Z_NO_FLUSH); | |
853 | if (ret < 0) { | |
854 | log_err("fio: deflate log (%d)\n", ret); | |
855 | break; | |
856 | } | |
857 | ||
858 | c->len = GZ_CHUNK - stream.avail_out; | |
859 | flist_add_tail(&c->list, &list); | |
860 | total += c->len; | |
861 | } while (stream.avail_in); | |
862 | ||
863 | stream.next_out = c->buf + c->len; | |
864 | stream.avail_out = GZ_CHUNK - c->len; | |
865 | ||
866 | ret = deflate(&stream, Z_FINISH); | |
867 | if (ret == Z_STREAM_END) | |
868 | c->len = GZ_CHUNK - stream.avail_out; | |
869 | else { | |
870 | do { | |
871 | c = get_new_chunk(seq); | |
872 | stream.avail_out = GZ_CHUNK; | |
873 | stream.next_out = c->buf; | |
874 | ret = deflate(&stream, Z_FINISH); | |
875 | c->len = GZ_CHUNK - stream.avail_out; | |
876 | flist_add_tail(&c->list, &list); | |
877 | } while (ret != Z_STREAM_END); | |
878 | } | |
879 | ||
880 | ret = deflateEnd(&stream); | |
881 | if (ret != Z_OK) | |
882 | log_err("fio: deflateEnd %d\n", ret); | |
883 | ||
884 | free(data->samples); | |
885 | ||
886 | if (!flist_empty(&list)) { | |
887 | pthread_mutex_lock(&data->log->chunk_lock); | |
888 | flist_splice_tail(&list, &data->log->chunk_list); | |
889 | pthread_mutex_unlock(&data->log->chunk_lock); | |
890 | } | |
891 | ||
892 | if (work->wait) { | |
893 | work->done = 1; | |
894 | pthread_cond_signal(&work->cv); | |
895 | } else | |
896 | free(data); | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | int iolog_flush(struct io_log *log, int wait) | |
902 | { | |
903 | struct thread_data *td = log->td; | |
904 | struct iolog_flush_data *data; | |
905 | size_t sample_size; | |
906 | ||
907 | data = malloc(sizeof(*data)); | |
908 | if (!data) | |
909 | return 1; | |
910 | ||
911 | data->log = log; | |
912 | ||
913 | sample_size = log->nr_samples * log_entry_sz(log); | |
914 | data->samples = malloc(sample_size); | |
915 | if (!data->samples) { | |
916 | free(data); | |
917 | return 1; | |
918 | } | |
919 | ||
920 | memcpy(data->samples, log->log, sample_size); | |
921 | data->nr_samples = log->nr_samples; | |
922 | data->work.fn = gz_work; | |
923 | log->nr_samples = 0; | |
924 | ||
925 | if (wait) { | |
926 | pthread_mutex_init(&data->work.lock, NULL); | |
927 | pthread_cond_init(&data->work.cv, NULL); | |
928 | data->work.wait = 1; | |
929 | } else | |
930 | data->work.wait = 0; | |
931 | ||
932 | tp_queue_work(td->tp_data, &data->work); | |
933 | ||
934 | if (wait) { | |
935 | pthread_mutex_lock(&data->work.lock); | |
936 | while (!data->work.done) | |
937 | pthread_cond_wait(&data->work.cv, &data->work.lock); | |
938 | pthread_mutex_unlock(&data->work.lock); | |
939 | free(data); | |
940 | } | |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
945 | #else | |
946 | ||
947 | int iolog_flush(struct io_log *log, int wait) | |
948 | { | |
949 | return 1; | |
950 | } | |
951 | ||
952 | #endif | |
953 | ||
cb7e0ace | 954 | static int write_iops_log(struct thread_data *td, int try) |
905e3d4f | 955 | { |
cb7e0ace | 956 | struct io_log *log = td->iops_log; |
905e3d4f JA |
957 | |
958 | if (!log) | |
959 | return 0; | |
960 | ||
cb7e0ace | 961 | return finish_log(td, log, try); |
905e3d4f JA |
962 | } |
963 | ||
964 | static int write_slat_log(struct thread_data *td, int try) | |
965 | { | |
cb7e0ace | 966 | struct io_log *log = td->slat_log; |
905e3d4f | 967 | |
cb7e0ace JA |
968 | if (!log) |
969 | return 0; | |
970 | ||
971 | return finish_log(td, log, try); | |
905e3d4f JA |
972 | } |
973 | ||
974 | static int write_clat_log(struct thread_data *td, int try) | |
975 | { | |
cb7e0ace | 976 | struct io_log *log = td->clat_log; |
905e3d4f | 977 | |
cb7e0ace JA |
978 | if (!log) |
979 | return 0; | |
980 | ||
981 | return finish_log(td, log, try); | |
905e3d4f JA |
982 | } |
983 | ||
984 | static int write_lat_log(struct thread_data *td, int try) | |
985 | { | |
cb7e0ace JA |
986 | struct io_log *log = td->lat_log; |
987 | ||
988 | if (!log) | |
989 | return 0; | |
905e3d4f | 990 | |
cb7e0ace | 991 | return finish_log(td, log, try); |
905e3d4f JA |
992 | } |
993 | ||
994 | static int write_bandw_log(struct thread_data *td, int try) | |
995 | { | |
cb7e0ace JA |
996 | struct io_log *log = td->bw_log; |
997 | ||
998 | if (!log) | |
999 | return 0; | |
905e3d4f | 1000 | |
cb7e0ace | 1001 | return finish_log(td, log, try); |
905e3d4f JA |
1002 | } |
1003 | ||
1004 | enum { | |
1005 | BW_LOG_MASK = 1, | |
1006 | LAT_LOG_MASK = 2, | |
1007 | SLAT_LOG_MASK = 4, | |
1008 | CLAT_LOG_MASK = 8, | |
1009 | IOPS_LOG_MASK = 16, | |
1010 | ||
905e3d4f JA |
1011 | ALL_LOG_NR = 5, |
1012 | }; | |
1013 | ||
1014 | struct log_type { | |
1015 | unsigned int mask; | |
1016 | int (*fn)(struct thread_data *, int); | |
1017 | }; | |
1018 | ||
1019 | static struct log_type log_types[] = { | |
1020 | { | |
1021 | .mask = BW_LOG_MASK, | |
1022 | .fn = write_bandw_log, | |
1023 | }, | |
1024 | { | |
1025 | .mask = LAT_LOG_MASK, | |
1026 | .fn = write_lat_log, | |
1027 | }, | |
1028 | { | |
1029 | .mask = SLAT_LOG_MASK, | |
1030 | .fn = write_slat_log, | |
1031 | }, | |
1032 | { | |
1033 | .mask = CLAT_LOG_MASK, | |
1034 | .fn = write_clat_log, | |
1035 | }, | |
1036 | { | |
1037 | .mask = IOPS_LOG_MASK, | |
1038 | .fn = write_iops_log, | |
1039 | }, | |
1040 | }; | |
1041 | ||
1042 | void fio_writeout_logs(struct thread_data *td) | |
1043 | { | |
ea5409f9 | 1044 | unsigned int log_mask = 0; |
905e3d4f JA |
1045 | unsigned int log_left = ALL_LOG_NR; |
1046 | int old_state, i; | |
1047 | ||
1048 | old_state = td_bump_runstate(td, TD_FINISHING); | |
1049 | ||
1050 | finalize_logs(td); | |
1051 | ||
1052 | while (log_left) { | |
1053 | int prev_log_left = log_left; | |
1054 | ||
1055 | for (i = 0; i < ALL_LOG_NR && log_left; i++) { | |
1056 | struct log_type *lt = &log_types[i]; | |
1057 | int ret; | |
1058 | ||
ea5409f9 | 1059 | if (!(log_mask & lt->mask)) { |
905e3d4f JA |
1060 | ret = lt->fn(td, log_left != 1); |
1061 | if (!ret) { | |
1062 | log_left--; | |
ea5409f9 | 1063 | log_mask |= lt->mask; |
905e3d4f JA |
1064 | } |
1065 | } | |
1066 | } | |
1067 | ||
1068 | if (prev_log_left == log_left) | |
1069 | usleep(5000); | |
1070 | } | |
1071 | ||
1072 | td_restore_runstate(td, old_state); | |
1073 | } |