Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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" |
Jens Axboe | 243bfe1 | 2014-04-02 15:46:58 -0600 | [diff] [blame] | 13 | #include "filelock.h" |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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; |
Jens Axboe | 3c3ed07 | 2012-03-27 09:12:39 +0200 | [diff] [blame] | 114 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | free(ipo); |
Jens Axboe | 3c3ed07 | 2012-03-27 09:12:39 +0200 | [diff] [blame] | 148 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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; |
Juan Casse | da0a7bd | 2013-09-17 14:06:12 -0700 | [diff] [blame] | 192 | ipo->numberio = io_u->numberio; |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 193 | ipo->flags = IP_F_IN_FLIGHT; |
| 194 | |
| 195 | io_u->ipo = ipo; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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 | */ |
Puthikorn Voravootivat | c4b6117 | 2014-02-05 10:17:11 -0700 | [diff] [blame] | 216 | if (((!td->o.verifysort) || !td_random(td) || !td->o.overwrite) && |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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 { |
Jens Axboe | 885ac62 | 2012-04-04 14:11:58 -0600 | [diff] [blame] | 246 | dprint(FD_IO, "iolog: overlap %llu/%lu, %llu/%lu", |
| 247 | __ipo->offset, __ipo->len, |
| 248 | ipo->offset, ipo->len); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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 | } |
Nikolaus Jeremic | 033ace1 | 2013-02-18 19:44:41 +0100 | [diff] [blame] | 323 | fileno = get_fileno(td, fname); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 324 | } else if (r == 2) { |
| 325 | rw = DDIR_INVAL; |
| 326 | if (!strcmp(act, "add")) { |
Jens Axboe | 5903e7b | 2014-02-26 13:42:13 -0800 | [diff] [blame] | 327 | fileno = add_file(td, fname, 0, 1); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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; |
Jens Axboe | 42793d9 | 2014-04-08 21:18:37 -0600 | [diff] [blame^] | 374 | if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw]) |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 375 | td->o.max_bs[rw] = bytes; |
| 376 | ipo->fileno = fileno; |
| 377 | ipo->file_action = file_action; |
| 378 | } |
Jens Axboe | 3c3ed07 | 2012-03-27 09:12:39 +0200 | [diff] [blame] | 379 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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) { |
Jens Axboe | d95b34a | 2013-11-21 09:55:49 -0700 | [diff] [blame] | 487 | int need_swap; |
| 488 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 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 | */ |
Jens Axboe | d95b34a | 2013-11-21 09:55:49 -0700 | [diff] [blame] | 493 | if (is_blktrace(td->o.read_iolog_file, &need_swap)) |
| 494 | ret = load_blktrace(td, td->o.read_iolog_file, need_swap); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 495 | else |
| 496 | ret = init_iolog_read(td); |
| 497 | } else if (td->o.write_iolog_file) |
| 498 | ret = init_iolog_write(td); |
| 499 | |
Jens Axboe | f01b34a | 2013-11-21 11:13:12 -0700 | [diff] [blame] | 500 | if (ret) |
| 501 | td_verror(td, EINVAL, "failed initializing iolog"); |
| 502 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 503 | return ret; |
| 504 | } |
| 505 | |
Jens Axboe | ea51b95 | 2012-03-14 11:39:13 +0100 | [diff] [blame] | 506 | void setup_log(struct io_log **log, unsigned long avg_msec, int log_type) |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 507 | { |
| 508 | struct io_log *l = malloc(sizeof(*l)); |
| 509 | |
Jens Axboe | b8bc8cb | 2011-12-01 09:04:31 +0100 | [diff] [blame] | 510 | memset(l, 0, sizeof(*l)); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 511 | l->nr_samples = 0; |
| 512 | l->max_samples = 1024; |
Jens Axboe | ea51b95 | 2012-03-14 11:39:13 +0100 | [diff] [blame] | 513 | l->log_type = log_type; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 514 | l->log = malloc(l->max_samples * sizeof(struct io_sample)); |
Jens Axboe | b8bc8cb | 2011-12-01 09:04:31 +0100 | [diff] [blame] | 515 | l->avg_msec = avg_msec; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 516 | *log = l; |
| 517 | } |
| 518 | |
Jens Axboe | 2e80228 | 2014-04-02 21:47:27 -0600 | [diff] [blame] | 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 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 545 | void __finish_log(struct io_log *log, const char *name) |
| 546 | { |
| 547 | unsigned int i; |
Jens Axboe | 2e80228 | 2014-04-02 21:47:27 -0600 | [diff] [blame] | 548 | void *buf; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 549 | FILE *f; |
| 550 | |
| 551 | f = fopen(name, "a"); |
| 552 | if (!f) { |
| 553 | perror("fopen log"); |
| 554 | return; |
| 555 | } |
| 556 | |
Jens Axboe | 2e80228 | 2014-04-02 21:47:27 -0600 | [diff] [blame] | 557 | buf = set_file_buffer(f); |
| 558 | |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 559 | for (i = 0; i < log->nr_samples; i++) { |
Jens Axboe | 1fae485 | 2012-03-22 21:31:00 +0100 | [diff] [blame] | 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); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 564 | } |
| 565 | |
| 566 | fclose(f); |
Jens Axboe | 2e80228 | 2014-04-02 21:47:27 -0600 | [diff] [blame] | 567 | clear_file_buffer(buf); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 568 | free(log->log); |
| 569 | free(log); |
| 570 | } |
| 571 | |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 572 | static int finish_log_named(struct thread_data *td, struct io_log *log, |
| 573 | const char *prefix, const char *postfix, |
| 574 | int trylock) |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 575 | { |
Erwan Velu | e53cf97 | 2014-04-02 10:00:56 +0200 | [diff] [blame] | 576 | char file_name[256]; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 577 | |
Ken Raeburn | 98ffb8f | 2013-01-30 22:31:09 +0100 | [diff] [blame] | 578 | snprintf(file_name, sizeof(file_name), "%s_%s.log", prefix, postfix); |
Jens Axboe | 1b42725 | 2012-03-14 15:03:03 +0100 | [diff] [blame] | 579 | |
Jens Axboe | 243bfe1 | 2014-04-02 15:46:58 -0600 | [diff] [blame] | 580 | if (trylock) { |
| 581 | if (fio_trylock_file(file_name)) |
| 582 | return 1; |
| 583 | } else |
| 584 | fio_lock_file(file_name); |
| 585 | |
Jens Axboe | f5ed765 | 2012-03-14 16:28:07 +0100 | [diff] [blame] | 586 | if (td->client_type == FIO_CLIENT_TYPE_GUI) { |
Erwan Velu | e53cf97 | 2014-04-02 10:00:56 +0200 | [diff] [blame] | 587 | fio_send_iolog(td, log, file_name); |
Jens Axboe | f5ed765 | 2012-03-14 16:28:07 +0100 | [diff] [blame] | 588 | free(log->log); |
| 589 | free(log); |
| 590 | } else |
Erwan Velu | e53cf97 | 2014-04-02 10:00:56 +0200 | [diff] [blame] | 591 | __finish_log(log, file_name); |
Jens Axboe | 243bfe1 | 2014-04-02 15:46:58 -0600 | [diff] [blame] | 592 | |
| 593 | fio_unlock_file(file_name); |
| 594 | return 0; |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 595 | } |
| 596 | |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 597 | static int finish_log(struct thread_data *td, struct io_log *log, |
| 598 | const char *name, int trylock) |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 599 | { |
Jens Axboe | 243bfe1 | 2014-04-02 15:46:58 -0600 | [diff] [blame] | 600 | return finish_log_named(td, log, td->o.name, name, trylock); |
Jens Axboe | ac9b910 | 2011-10-01 15:01:08 -0400 | [diff] [blame] | 601 | } |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 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 | |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 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 | { |
Jens Axboe | ea5409f | 2014-04-02 20:07:28 -0600 | [diff] [blame] | 694 | unsigned int log_mask = 0; |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 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 | |
Jens Axboe | ea5409f | 2014-04-02 20:07:28 -0600 | [diff] [blame] | 709 | if (!(log_mask & lt->mask)) { |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 710 | ret = lt->fn(td, log_left != 1); |
| 711 | if (!ret) { |
| 712 | log_left--; |
Jens Axboe | ea5409f | 2014-04-02 20:07:28 -0600 | [diff] [blame] | 713 | log_mask |= lt->mask; |
Jens Axboe | 905e3d4 | 2014-04-02 20:01:27 -0600 | [diff] [blame] | 714 | } |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | if (prev_log_left == log_left) |
| 719 | usleep(5000); |
| 720 | } |
| 721 | |
| 722 | td_restore_runstate(td, old_state); |
| 723 | } |