| | 1 | #include <stdio.h> |
| | 2 | #include <string.h> |
| | 3 | #include <sys/time.h> |
| | 4 | #include <sys/types.h> |
| | 5 | #include <sys/stat.h> |
| | 6 | #include <dirent.h> |
| | 7 | #include <libgen.h> |
| | 8 | #include <math.h> |
| | 9 | #include <assert.h> |
| | 10 | |
| | 11 | #include "fio.h" |
| | 12 | |
| | 13 | static struct itimerval itimer; |
| | 14 | static struct list_head disk_list = LIST_HEAD_INIT(disk_list); |
| | 15 | static dev_t last_dev; |
| | 16 | |
| | 17 | /* |
| | 18 | * Cheesy number->string conversion, complete with carry rounding error. |
| | 19 | */ |
| | 20 | static char *num2str(unsigned long num, int maxlen, int base) |
| | 21 | { |
| | 22 | /* |
| | 23 | * could be passed in for 10^3 base, but every caller expects |
| | 24 | * 2^10 base right now. |
| | 25 | */ |
| | 26 | const unsigned int thousand = 1024; |
| | 27 | char postfix[] = { 'K', 'M', 'G', 'P', 'E' }; |
| | 28 | char *buf; |
| | 29 | int i; |
| | 30 | |
| | 31 | buf = malloc(128); |
| | 32 | |
| | 33 | for (i = 0; base > 1; i++) |
| | 34 | base /= thousand; |
| | 35 | |
| | 36 | do { |
| | 37 | int len, carry = 0; |
| | 38 | |
| | 39 | len = sprintf(buf, "%'lu", num); |
| | 40 | if (len <= maxlen) { |
| | 41 | buf[len] = postfix[i]; |
| | 42 | buf[len + 1] = '\0'; |
| | 43 | return buf; |
| | 44 | } |
| | 45 | |
| | 46 | if ((num % thousand) >= (thousand / 2)) |
| | 47 | carry = 1; |
| | 48 | |
| | 49 | num /= thousand; |
| | 50 | num += carry; |
| | 51 | i++; |
| | 52 | } while (i <= 5); |
| | 53 | |
| | 54 | return buf; |
| | 55 | } |
| | 56 | |
| | 57 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
| | 58 | { |
| | 59 | unsigned in_flight; |
| | 60 | char line[256]; |
| | 61 | FILE *f; |
| | 62 | char *p; |
| | 63 | |
| | 64 | f = fopen(du->path, "r"); |
| | 65 | if (!f) |
| | 66 | return 1; |
| | 67 | |
| | 68 | p = fgets(line, sizeof(line), f); |
| | 69 | if (!p) { |
| | 70 | fclose(f); |
| | 71 | return 1; |
| | 72 | } |
| | 73 | |
| | 74 | if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) { |
| | 75 | fclose(f); |
| | 76 | return 1; |
| | 77 | } |
| | 78 | |
| | 79 | fclose(f); |
| | 80 | return 0; |
| | 81 | } |
| | 82 | |
| | 83 | static void update_io_tick_disk(struct disk_util *du) |
| | 84 | { |
| | 85 | struct disk_util_stat __dus, *dus, *ldus; |
| | 86 | struct timeval t; |
| | 87 | |
| | 88 | if (get_io_ticks(du, &__dus)) |
| | 89 | return; |
| | 90 | |
| | 91 | dus = &du->dus; |
| | 92 | ldus = &du->last_dus; |
| | 93 | |
| | 94 | dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]); |
| | 95 | dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]); |
| | 96 | dus->ios[0] += (__dus.ios[0] - ldus->ios[0]); |
| | 97 | dus->ios[1] += (__dus.ios[1] - ldus->ios[1]); |
| | 98 | dus->merges[0] += (__dus.merges[0] - ldus->merges[0]); |
| | 99 | dus->merges[1] += (__dus.merges[1] - ldus->merges[1]); |
| | 100 | dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]); |
| | 101 | dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]); |
| | 102 | dus->io_ticks += (__dus.io_ticks - ldus->io_ticks); |
| | 103 | dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue); |
| | 104 | |
| | 105 | fio_gettime(&t, NULL); |
| | 106 | du->msec += mtime_since(&du->time, &t); |
| | 107 | memcpy(&du->time, &t, sizeof(t)); |
| | 108 | memcpy(ldus, &__dus, sizeof(__dus)); |
| | 109 | } |
| | 110 | |
| | 111 | void update_io_ticks(void) |
| | 112 | { |
| | 113 | struct list_head *entry; |
| | 114 | struct disk_util *du; |
| | 115 | |
| | 116 | list_for_each(entry, &disk_list) { |
| | 117 | du = list_entry(entry, struct disk_util, list); |
| | 118 | update_io_tick_disk(du); |
| | 119 | } |
| | 120 | } |
| | 121 | |
| | 122 | static int disk_util_exists(dev_t dev) |
| | 123 | { |
| | 124 | struct list_head *entry; |
| | 125 | struct disk_util *du; |
| | 126 | |
| | 127 | list_for_each(entry, &disk_list) { |
| | 128 | du = list_entry(entry, struct disk_util, list); |
| | 129 | |
| | 130 | if (du->dev == dev) |
| | 131 | return 1; |
| | 132 | } |
| | 133 | |
| | 134 | return 0; |
| | 135 | } |
| | 136 | |
| | 137 | static void disk_util_add(dev_t dev, char *path) |
| | 138 | { |
| | 139 | struct disk_util *du, *__du; |
| | 140 | struct list_head *entry; |
| | 141 | |
| | 142 | du = malloc(sizeof(*du)); |
| | 143 | memset(du, 0, sizeof(*du)); |
| | 144 | INIT_LIST_HEAD(&du->list); |
| | 145 | sprintf(du->path, "%s/stat", path); |
| | 146 | du->name = strdup(basename(path)); |
| | 147 | du->dev = dev; |
| | 148 | |
| | 149 | list_for_each(entry, &disk_list) { |
| | 150 | __du = list_entry(entry, struct disk_util, list); |
| | 151 | |
| | 152 | if (!strcmp(du->name, __du->name)) { |
| | 153 | free(du->name); |
| | 154 | free(du); |
| | 155 | return; |
| | 156 | } |
| | 157 | } |
| | 158 | |
| | 159 | fio_gettime(&du->time, NULL); |
| | 160 | get_io_ticks(du, &du->last_dus); |
| | 161 | |
| | 162 | list_add_tail(&du->list, &disk_list); |
| | 163 | } |
| | 164 | |
| | 165 | static int check_dev_match(dev_t dev, char *path) |
| | 166 | { |
| | 167 | unsigned int major, minor; |
| | 168 | char line[256], *p; |
| | 169 | FILE *f; |
| | 170 | |
| | 171 | f = fopen(path, "r"); |
| | 172 | if (!f) { |
| | 173 | perror("open path"); |
| | 174 | return 1; |
| | 175 | } |
| | 176 | |
| | 177 | p = fgets(line, sizeof(line), f); |
| | 178 | if (!p) { |
| | 179 | fclose(f); |
| | 180 | return 1; |
| | 181 | } |
| | 182 | |
| | 183 | if (sscanf(p, "%u:%u", &major, &minor) != 2) { |
| | 184 | fclose(f); |
| | 185 | return 1; |
| | 186 | } |
| | 187 | |
| | 188 | if (((major << 8) | minor) == dev) { |
| | 189 | fclose(f); |
| | 190 | return 0; |
| | 191 | } |
| | 192 | |
| | 193 | fclose(f); |
| | 194 | return 1; |
| | 195 | } |
| | 196 | |
| | 197 | static int find_block_dir(dev_t dev, char *path) |
| | 198 | { |
| | 199 | struct dirent *dir; |
| | 200 | struct stat st; |
| | 201 | int found = 0; |
| | 202 | DIR *D; |
| | 203 | |
| | 204 | D = opendir(path); |
| | 205 | if (!D) |
| | 206 | return 0; |
| | 207 | |
| | 208 | while ((dir = readdir(D)) != NULL) { |
| | 209 | char full_path[256]; |
| | 210 | |
| | 211 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
| | 212 | continue; |
| | 213 | |
| | 214 | sprintf(full_path, "%s/%s", path, dir->d_name); |
| | 215 | |
| | 216 | if (!strcmp(dir->d_name, "dev")) { |
| | 217 | if (!check_dev_match(dev, full_path)) { |
| | 218 | found = 1; |
| | 219 | break; |
| | 220 | } |
| | 221 | } |
| | 222 | |
| | 223 | if (lstat(full_path, &st) == -1) { |
| | 224 | perror("stat"); |
| | 225 | break; |
| | 226 | } |
| | 227 | |
| | 228 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) |
| | 229 | continue; |
| | 230 | |
| | 231 | found = find_block_dir(dev, full_path); |
| | 232 | if (found) { |
| | 233 | strcpy(path, full_path); |
| | 234 | break; |
| | 235 | } |
| | 236 | } |
| | 237 | |
| | 238 | closedir(D); |
| | 239 | return found; |
| | 240 | } |
| | 241 | |
| | 242 | void init_disk_util(struct thread_data *td) |
| | 243 | { |
| | 244 | struct fio_file *f; |
| | 245 | struct stat st; |
| | 246 | char foo[PATH_MAX], tmp[PATH_MAX]; |
| | 247 | dev_t dev; |
| | 248 | char *p; |
| | 249 | |
| | 250 | if (!td->do_disk_util || (td->io_ops->flags & FIO_DISKLESSIO)) |
| | 251 | return; |
| | 252 | |
| | 253 | /* |
| | 254 | * Just use the same file, they are on the same device. |
| | 255 | */ |
| | 256 | f = &td->files[0]; |
| | 257 | if (!stat(f->file_name, &st)) { |
| | 258 | if (S_ISBLK(st.st_mode)) |
| | 259 | dev = st.st_rdev; |
| | 260 | else |
| | 261 | dev = st.st_dev; |
| | 262 | } else { |
| | 263 | /* |
| | 264 | * must be a file, open "." in that path |
| | 265 | */ |
| | 266 | strncpy(foo, f->file_name, PATH_MAX - 1); |
| | 267 | p = dirname(foo); |
| | 268 | if (stat(p, &st)) { |
| | 269 | perror("disk util stat"); |
| | 270 | return; |
| | 271 | } |
| | 272 | |
| | 273 | dev = st.st_dev; |
| | 274 | } |
| | 275 | |
| | 276 | if (disk_util_exists(dev)) |
| | 277 | return; |
| | 278 | |
| | 279 | /* |
| | 280 | * for an fs without a device, we will repeatedly stat through |
| | 281 | * sysfs which can take oodles of time for thousands of files. so |
| | 282 | * cache the last lookup and compare with that before going through |
| | 283 | * everything again. |
| | 284 | */ |
| | 285 | if (dev == last_dev) |
| | 286 | return; |
| | 287 | |
| | 288 | last_dev = dev; |
| | 289 | |
| | 290 | sprintf(foo, "/sys/block"); |
| | 291 | if (!find_block_dir(dev, foo)) |
| | 292 | return; |
| | 293 | |
| | 294 | /* |
| | 295 | * If there's a ../queue/ directory there, we are inside a partition. |
| | 296 | * Check if that is the case and jump back. For loop/md/dm etc we |
| | 297 | * are already in the right spot. |
| | 298 | */ |
| | 299 | sprintf(tmp, "%s/../queue", foo); |
| | 300 | if (!stat(tmp, &st)) { |
| | 301 | p = dirname(foo); |
| | 302 | sprintf(tmp, "%s/queue", p); |
| | 303 | if (stat(tmp, &st)) { |
| | 304 | log_err("unknown sysfs layout\n"); |
| | 305 | return; |
| | 306 | } |
| | 307 | strncpy(tmp, p, PATH_MAX - 1); |
| | 308 | sprintf(foo, "%s", tmp); |
| | 309 | } |
| | 310 | |
| | 311 | if (td->ioscheduler) |
| | 312 | td->sysfs_root = strdup(foo); |
| | 313 | |
| | 314 | disk_util_add(dev, foo); |
| | 315 | } |
| | 316 | |
| | 317 | void disk_util_timer_arm(void) |
| | 318 | { |
| | 319 | itimer.it_value.tv_sec = 0; |
| | 320 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; |
| | 321 | setitimer(ITIMER_REAL, &itimer, NULL); |
| | 322 | } |
| | 323 | |
| | 324 | void update_rusage_stat(struct thread_data *td) |
| | 325 | { |
| | 326 | struct thread_stat *ts = &td->ts; |
| | 327 | |
| | 328 | getrusage(RUSAGE_SELF, &ts->ru_end); |
| | 329 | |
| | 330 | ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime); |
| | 331 | ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime); |
| | 332 | ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw); |
| | 333 | |
| | 334 | memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end)); |
| | 335 | } |
| | 336 | |
| | 337 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, |
| | 338 | double *mean, double *dev) |
| | 339 | { |
| | 340 | double n = is->samples; |
| | 341 | |
| | 342 | if (is->samples == 0) |
| | 343 | return 0; |
| | 344 | |
| | 345 | *min = is->min_val; |
| | 346 | *max = is->max_val; |
| | 347 | |
| | 348 | n = (double) is->samples; |
| | 349 | *mean = is->mean; |
| | 350 | |
| | 351 | if (n > 1.0) |
| | 352 | *dev = sqrt(is->S / (n - 1.0)); |
| | 353 | else |
| | 354 | *dev = -1.0; |
| | 355 | |
| | 356 | return 1; |
| | 357 | } |
| | 358 | |
| | 359 | static void show_group_stats(struct group_run_stats *rs, int id) |
| | 360 | { |
| | 361 | char *p1, *p2, *p3, *p4; |
| | 362 | const char *ddir_str[] = { " READ", " WRITE" }; |
| | 363 | int i; |
| | 364 | |
| | 365 | fprintf(f_out, "\nRun status group %d (all jobs):\n", id); |
| | 366 | |
| | 367 | for (i = 0; i <= DDIR_WRITE; i++) { |
| | 368 | if (!rs->max_run[i]) |
| | 369 | continue; |
| | 370 | |
| | 371 | p1 = num2str(rs->io_kb[i], 6, 1); |
| | 372 | p2 = num2str(rs->agg[i], 6, 1); |
| | 373 | p3 = num2str(rs->min_bw[i], 6, 1); |
| | 374 | p4 = num2str(rs->max_bw[i], 6, 1); |
| | 375 | |
| | 376 | fprintf(f_out, "%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[0], rs->max_run[0]); |
| | 377 | |
| | 378 | free(p1); |
| | 379 | free(p2); |
| | 380 | free(p3); |
| | 381 | free(p4); |
| | 382 | } |
| | 383 | } |
| | 384 | |
| | 385 | static void show_disk_util(void) |
| | 386 | { |
| | 387 | struct disk_util_stat *dus; |
| | 388 | struct list_head *entry, *next; |
| | 389 | struct disk_util *du; |
| | 390 | double util; |
| | 391 | |
| | 392 | fprintf(f_out, "\nDisk stats (read/write):\n"); |
| | 393 | |
| | 394 | list_for_each(entry, &disk_list) { |
| | 395 | du = list_entry(entry, struct disk_util, list); |
| | 396 | dus = &du->dus; |
| | 397 | |
| | 398 | util = (double) 100 * du->dus.io_ticks / (double) du->msec; |
| | 399 | if (util > 100.0) |
| | 400 | util = 100.0; |
| | 401 | |
| | 402 | fprintf(f_out, " %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util); |
| | 403 | } |
| | 404 | |
| | 405 | /* |
| | 406 | * now free the list |
| | 407 | */ |
| | 408 | list_for_each_safe(entry, next, &disk_list) { |
| | 409 | list_del(entry); |
| | 410 | du = list_entry(entry, struct disk_util, list); |
| | 411 | free(du->name); |
| | 412 | free(du); |
| | 413 | } |
| | 414 | } |
| | 415 | |
| | 416 | static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, |
| | 417 | int ddir) |
| | 418 | { |
| | 419 | const char *ddir_str[] = { "read ", "write" }; |
| | 420 | unsigned long min, max; |
| | 421 | unsigned long long bw; |
| | 422 | double mean, dev; |
| | 423 | char *io_p, *bw_p; |
| | 424 | |
| | 425 | if (!ts->runtime[ddir]) |
| | 426 | return; |
| | 427 | |
| | 428 | bw = ts->io_bytes[ddir] / ts->runtime[ddir]; |
| | 429 | io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1); |
| | 430 | bw_p = num2str(bw, 6, 1); |
| | 431 | |
| | 432 | fprintf(f_out, " %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, ts->runtime[ddir]); |
| | 433 | |
| | 434 | free(io_p); |
| | 435 | free(bw_p); |
| | 436 | |
| | 437 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) |
| | 438 | fprintf(f_out, " slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); |
| | 439 | |
| | 440 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) |
| | 441 | fprintf(f_out, " clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); |
| | 442 | |
| | 443 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| | 444 | double p_of_agg; |
| | 445 | |
| | 446 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| | 447 | fprintf(f_out, " bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev); |
| | 448 | } |
| | 449 | } |
| | 450 | |
| | 451 | static void show_thread_status(struct thread_stat *ts, |
| | 452 | struct group_run_stats *rs) |
| | 453 | { |
| | 454 | double usr_cpu, sys_cpu; |
| | 455 | unsigned long runtime; |
| | 456 | double io_u_dist[FIO_IO_U_MAP_NR]; |
| | 457 | double io_u_lat[FIO_IO_U_LAT_NR]; |
| | 458 | int i; |
| | 459 | |
| | 460 | if (!(ts->io_bytes[0] + ts->io_bytes[1])) |
| | 461 | return; |
| | 462 | |
| | 463 | if (!ts->error) |
| | 464 | fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->error, ts->pid); |
| | 465 | else |
| | 466 | fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->error, ts->verror, ts->pid); |
| | 467 | |
| | 468 | if (ts->io_bytes[DDIR_READ]) |
| | 469 | show_ddir_status(rs, ts, DDIR_READ); |
| | 470 | if (ts->io_bytes[DDIR_WRITE]) |
| | 471 | show_ddir_status(rs, ts, DDIR_WRITE); |
| | 472 | |
| | 473 | runtime = ts->total_run_time; |
| | 474 | if (runtime) { |
| | 475 | double runt = (double) runtime; |
| | 476 | |
| | 477 | usr_cpu = (double) ts->usr_time * 100 / runt; |
| | 478 | sys_cpu = (double) ts->sys_time * 100 / runt; |
| | 479 | } else { |
| | 480 | usr_cpu = 0; |
| | 481 | sys_cpu = 0; |
| | 482 | } |
| | 483 | |
| | 484 | fprintf(f_out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx); |
| | 485 | |
| | 486 | /* |
| | 487 | * Do depth distribution calculations |
| | 488 | */ |
| | 489 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| | 490 | io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts->total_io_u; |
| | 491 | io_u_dist[i] *= 100.0; |
| | 492 | } |
| | 493 | |
| | 494 | fprintf(f_out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); |
| | 495 | |
| | 496 | /* |
| | 497 | * Do latency distribution calculations |
| | 498 | */ |
| | 499 | for (i = 0; i < FIO_IO_U_LAT_NR; i++) { |
| | 500 | io_u_lat[i] = (double) ts->io_u_lat[i] / (double) ts->total_io_u; |
| | 501 | io_u_lat[i] *= 100.0; |
| | 502 | } |
| | 503 | |
| | 504 | fprintf(f_out, " lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]); |
| | 505 | fprintf(f_out, " lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]); |
| | 506 | |
| | 507 | if (ts->description) |
| | 508 | fprintf(f_out, "%s\n", ts->description); |
| | 509 | } |
| | 510 | |
| | 511 | static void show_ddir_status_terse(struct thread_stat *ts, |
| | 512 | struct group_run_stats *rs, int ddir) |
| | 513 | { |
| | 514 | unsigned long min, max; |
| | 515 | unsigned long long bw; |
| | 516 | double mean, dev; |
| | 517 | |
| | 518 | bw = 0; |
| | 519 | if (ts->runtime[ddir]) |
| | 520 | bw = ts->io_bytes[ddir] / ts->runtime[ddir]; |
| | 521 | |
| | 522 | fprintf(f_out, ",%llu,%llu,%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]); |
| | 523 | |
| | 524 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) |
| | 525 | fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); |
| | 526 | else |
| | 527 | fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); |
| | 528 | |
| | 529 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) |
| | 530 | fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); |
| | 531 | else |
| | 532 | fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); |
| | 533 | |
| | 534 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| | 535 | double p_of_agg; |
| | 536 | |
| | 537 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| | 538 | fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev); |
| | 539 | } else |
| | 540 | fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0); |
| | 541 | } |
| | 542 | |
| | 543 | |
| | 544 | static void show_thread_status_terse(struct thread_stat *ts, |
| | 545 | struct group_run_stats *rs) |
| | 546 | { |
| | 547 | double usr_cpu, sys_cpu; |
| | 548 | |
| | 549 | fprintf(f_out, "%s,%d,%d", ts->name, ts->groupid, ts->error); |
| | 550 | |
| | 551 | show_ddir_status_terse(ts, rs, 0); |
| | 552 | show_ddir_status_terse(ts, rs, 1); |
| | 553 | |
| | 554 | if (ts->total_run_time) { |
| | 555 | double runt = (double) ts->total_run_time; |
| | 556 | |
| | 557 | usr_cpu = (double) ts->usr_time * 100 / runt; |
| | 558 | sys_cpu = (double) ts->sys_time * 100 / runt; |
| | 559 | } else { |
| | 560 | usr_cpu = 0; |
| | 561 | sys_cpu = 0; |
| | 562 | } |
| | 563 | |
| | 564 | fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, ts->ctx); |
| | 565 | } |
| | 566 | |
| | 567 | static void __sum_stat(struct io_stat *dst, struct io_stat *src, int nr) |
| | 568 | { |
| | 569 | double mean, S; |
| | 570 | |
| | 571 | dst->min_val = min(dst->min_val, src->min_val); |
| | 572 | dst->max_val = max(dst->max_val, src->max_val); |
| | 573 | dst->samples += src->samples; |
| | 574 | |
| | 575 | /* |
| | 576 | * Needs a new method for calculating stddev, we cannot just |
| | 577 | * average them we do below for nr > 1 |
| | 578 | */ |
| | 579 | if (nr == 1) { |
| | 580 | mean = src->mean; |
| | 581 | S = src->S; |
| | 582 | } else { |
| | 583 | mean = ((src->mean * (double) nr) + dst->mean) / ((double) nr + 1.0); |
| | 584 | S = ((src->S * (double) nr) + dst->S) / ((double) nr + 1.0); |
| | 585 | } |
| | 586 | |
| | 587 | dst->mean = mean; |
| | 588 | dst->S = S; |
| | 589 | } |
| | 590 | |
| | 591 | static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) |
| | 592 | { |
| | 593 | __sum_stat(&dst[DDIR_READ], &src[DDIR_READ], nr); |
| | 594 | __sum_stat(&dst[DDIR_WRITE], &src[DDIR_WRITE], nr); |
| | 595 | } |
| | 596 | |
| | 597 | void show_run_stats(void) |
| | 598 | { |
| | 599 | struct group_run_stats *runstats, *rs; |
| | 600 | struct thread_data *td; |
| | 601 | struct thread_stat *threadstats, *ts; |
| | 602 | int i, j, k, nr_ts, last_ts, members; |
| | 603 | |
| | 604 | runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); |
| | 605 | |
| | 606 | for (i = 0; i < groupid + 1; i++) { |
| | 607 | rs = &runstats[i]; |
| | 608 | |
| | 609 | memset(rs, 0, sizeof(*rs)); |
| | 610 | rs->min_bw[0] = rs->min_run[0] = ~0UL; |
| | 611 | rs->min_bw[1] = rs->min_run[1] = ~0UL; |
| | 612 | } |
| | 613 | |
| | 614 | /* |
| | 615 | * find out how many threads stats we need. if group reporting isn't |
| | 616 | * enabled, it's one-per-td. |
| | 617 | */ |
| | 618 | nr_ts = 0; |
| | 619 | last_ts = -1; |
| | 620 | for_each_td(td, i) { |
| | 621 | if (!td->group_reporting) { |
| | 622 | nr_ts++; |
| | 623 | continue; |
| | 624 | } |
| | 625 | if (last_ts == td->groupid) |
| | 626 | continue; |
| | 627 | |
| | 628 | last_ts = td->groupid; |
| | 629 | nr_ts++; |
| | 630 | } |
| | 631 | |
| | 632 | threadstats = malloc(nr_ts * sizeof(struct thread_stat)); |
| | 633 | |
| | 634 | for (i = 0; i < nr_ts; i++) { |
| | 635 | ts = &threadstats[i]; |
| | 636 | |
| | 637 | memset(ts, 0, sizeof(*ts)); |
| | 638 | ts->clat_stat[0].min_val = -1UL; |
| | 639 | ts->clat_stat[1].min_val = -1UL; |
| | 640 | ts->slat_stat[0].min_val = -1UL; |
| | 641 | ts->slat_stat[1].min_val = -1UL; |
| | 642 | ts->bw_stat[0].min_val = -1UL; |
| | 643 | ts->bw_stat[1].min_val = -1UL; |
| | 644 | } |
| | 645 | |
| | 646 | j = 0; |
| | 647 | last_ts = -1; |
| | 648 | members = 0; |
| | 649 | for_each_td(td, i) { |
| | 650 | ts = &threadstats[j]; |
| | 651 | |
| | 652 | members++; |
| | 653 | |
| | 654 | if (!ts->groupid) { |
| | 655 | ts->name = td->name; |
| | 656 | ts->description = td->description; |
| | 657 | ts->error = td->error; |
| | 658 | ts->groupid = td->groupid; |
| | 659 | ts->pid = td->pid; |
| | 660 | ts->verror = td->verror; |
| | 661 | } |
| | 662 | |
| | 663 | sum_stat(ts->clat_stat, td->ts.clat_stat, members); |
| | 664 | sum_stat(ts->slat_stat, td->ts.slat_stat, members); |
| | 665 | sum_stat(ts->bw_stat, td->ts.bw_stat, members); |
| | 666 | |
| | 667 | ts->stat_io_bytes[0] += td->ts.stat_io_bytes[0]; |
| | 668 | ts->stat_io_bytes[1] += td->ts.stat_io_bytes[1]; |
| | 669 | |
| | 670 | ts->usr_time += td->ts.usr_time; |
| | 671 | ts->sys_time += td->ts.sys_time; |
| | 672 | ts->ctx += td->ts.ctx; |
| | 673 | |
| | 674 | for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| | 675 | ts->io_u_map[k] += td->ts.io_u_map[k]; |
| | 676 | for (k = 0; k < FIO_IO_U_LAT_NR; k++) |
| | 677 | ts->io_u_lat[k] += td->ts.io_u_lat[k]; |
| | 678 | |
| | 679 | ts->total_io_u += td->ts.total_io_u; |
| | 680 | ts->io_bytes[0] += td->ts.io_bytes[0]; |
| | 681 | ts->io_bytes[1] += td->ts.io_bytes[1]; |
| | 682 | |
| | 683 | if (ts->runtime[0] < td->ts.runtime[0]) |
| | 684 | ts->runtime[0] = td->ts.runtime[0]; |
| | 685 | if (ts->runtime[1] < td->ts.runtime[1]) |
| | 686 | ts->runtime[1] = td->ts.runtime[1]; |
| | 687 | |
| | 688 | ts->total_run_time += td->ts.total_run_time; |
| | 689 | |
| | 690 | if (!td->group_reporting) { |
| | 691 | members = 0; |
| | 692 | j++; |
| | 693 | continue; |
| | 694 | } |
| | 695 | if (last_ts == td->groupid) |
| | 696 | continue; |
| | 697 | |
| | 698 | if (last_ts != -1) { |
| | 699 | members = 0; |
| | 700 | j++; |
| | 701 | } |
| | 702 | |
| | 703 | last_ts = td->groupid; |
| | 704 | } |
| | 705 | |
| | 706 | for (i = 0; i < nr_ts; i++) { |
| | 707 | unsigned long long rbw, wbw; |
| | 708 | |
| | 709 | ts = &threadstats[i]; |
| | 710 | rs = &runstats[ts->groupid]; |
| | 711 | |
| | 712 | if (ts->runtime[0] < rs->min_run[0] || !rs->min_run[0]) |
| | 713 | rs->min_run[0] = ts->runtime[0]; |
| | 714 | if (ts->runtime[0] > rs->max_run[0]) |
| | 715 | rs->max_run[0] = ts->runtime[0]; |
| | 716 | if (ts->runtime[1] < rs->min_run[1] || !rs->min_run[1]) |
| | 717 | rs->min_run[1] = ts->runtime[1]; |
| | 718 | if (ts->runtime[1] > rs->max_run[1]) |
| | 719 | rs->max_run[1] = ts->runtime[1]; |
| | 720 | |
| | 721 | rbw = wbw = 0; |
| | 722 | if (ts->runtime[0]) |
| | 723 | rbw = td->io_bytes[0] / (unsigned long long) ts->runtime[0]; |
| | 724 | if (ts->runtime[1]) |
| | 725 | wbw = td->io_bytes[1] / (unsigned long long) ts->runtime[1]; |
| | 726 | |
| | 727 | if (rbw < rs->min_bw[0]) |
| | 728 | rs->min_bw[0] = rbw; |
| | 729 | if (wbw < rs->min_bw[1]) |
| | 730 | rs->min_bw[1] = wbw; |
| | 731 | if (rbw > rs->max_bw[0]) |
| | 732 | rs->max_bw[0] = rbw; |
| | 733 | if (wbw > rs->max_bw[1]) |
| | 734 | rs->max_bw[1] = wbw; |
| | 735 | |
| | 736 | rs->io_kb[0] += ts->io_bytes[0] >> 10; |
| | 737 | rs->io_kb[1] += ts->io_bytes[1] >> 10; |
| | 738 | } |
| | 739 | |
| | 740 | for (i = 0; i < groupid + 1; i++) { |
| | 741 | rs = &runstats[i]; |
| | 742 | |
| | 743 | if (rs->max_run[0]) |
| | 744 | rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0]; |
| | 745 | if (rs->max_run[1]) |
| | 746 | rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1]; |
| | 747 | } |
| | 748 | |
| | 749 | /* |
| | 750 | * don't overwrite last signal output |
| | 751 | */ |
| | 752 | if (!terse_output) |
| | 753 | printf("\n"); |
| | 754 | |
| | 755 | for (i = 0; i < nr_ts; i++) { |
| | 756 | ts = &threadstats[i]; |
| | 757 | rs = &runstats[ts->groupid]; |
| | 758 | |
| | 759 | if (terse_output) |
| | 760 | show_thread_status_terse(ts, rs); |
| | 761 | else |
| | 762 | show_thread_status(ts, rs); |
| | 763 | } |
| | 764 | |
| | 765 | if (!terse_output) { |
| | 766 | for (i = 0; i < groupid + 1; i++) |
| | 767 | show_group_stats(&runstats[i], i); |
| | 768 | |
| | 769 | show_disk_util(); |
| | 770 | } |
| | 771 | |
| | 772 | free(runstats); |
| | 773 | free(threadstats); |
| | 774 | } |
| | 775 | |
| | 776 | static inline void add_stat_sample(struct io_stat *is, unsigned long data) |
| | 777 | { |
| | 778 | double val = data; |
| | 779 | double delta, n; |
| | 780 | |
| | 781 | if (data > is->max_val) |
| | 782 | is->max_val = data; |
| | 783 | if (data < is->min_val) |
| | 784 | is->min_val = data; |
| | 785 | |
| | 786 | delta = val - is->mean; |
| | 787 | n = is->samples + 1.0; |
| | 788 | is->mean += delta / n; |
| | 789 | is->S += delta * (val - is->mean); |
| | 790 | |
| | 791 | is->samples++; |
| | 792 | } |
| | 793 | |
| | 794 | static void __add_log_sample(struct io_log *iolog, unsigned long val, |
| | 795 | enum fio_ddir ddir, unsigned long time) |
| | 796 | { |
| | 797 | if (iolog->nr_samples == iolog->max_samples) { |
| | 798 | int new_size = sizeof(struct io_sample) * iolog->max_samples*2; |
| | 799 | |
| | 800 | iolog->log = realloc(iolog->log, new_size); |
| | 801 | iolog->max_samples <<= 1; |
| | 802 | } |
| | 803 | |
| | 804 | iolog->log[iolog->nr_samples].val = val; |
| | 805 | iolog->log[iolog->nr_samples].time = time; |
| | 806 | iolog->log[iolog->nr_samples].ddir = ddir; |
| | 807 | iolog->nr_samples++; |
| | 808 | } |
| | 809 | |
| | 810 | static void add_log_sample(struct thread_data *td, struct io_log *iolog, |
| | 811 | unsigned long val, enum fio_ddir ddir) |
| | 812 | { |
| | 813 | __add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch)); |
| | 814 | } |
| | 815 | |
| | 816 | void add_agg_sample(unsigned long val, enum fio_ddir ddir) |
| | 817 | { |
| | 818 | struct io_log *iolog = agg_io_log[ddir]; |
| | 819 | |
| | 820 | __add_log_sample(iolog, val, ddir, mtime_since_genesis()); |
| | 821 | } |
| | 822 | |
| | 823 | void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 824 | unsigned long msec) |
| | 825 | { |
| | 826 | struct thread_stat *ts = &td->ts; |
| | 827 | |
| | 828 | add_stat_sample(&ts->clat_stat[ddir], msec); |
| | 829 | |
| | 830 | if (ts->clat_log) |
| | 831 | add_log_sample(td, ts->clat_log, msec, ddir); |
| | 832 | } |
| | 833 | |
| | 834 | void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 835 | unsigned long msec) |
| | 836 | { |
| | 837 | struct thread_stat *ts = &td->ts; |
| | 838 | |
| | 839 | add_stat_sample(&ts->slat_stat[ddir], msec); |
| | 840 | |
| | 841 | if (ts->slat_log) |
| | 842 | add_log_sample(td, ts->slat_log, msec, ddir); |
| | 843 | } |
| | 844 | |
| | 845 | void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 846 | struct timeval *t) |
| | 847 | { |
| | 848 | struct thread_stat *ts = &td->ts; |
| | 849 | unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t); |
| | 850 | unsigned long rate; |
| | 851 | |
| | 852 | if (spent < td->bw_avg_time) |
| | 853 | return; |
| | 854 | |
| | 855 | rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent; |
| | 856 | add_stat_sample(&ts->bw_stat[ddir], rate); |
| | 857 | |
| | 858 | if (ts->bw_log) |
| | 859 | add_log_sample(td, ts->bw_log, rate, ddir); |
| | 860 | |
| | 861 | fio_gettime(&ts->stat_sample_time[ddir], NULL); |
| | 862 | ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; |
| | 863 | } |
projects / fio.git / blame_incremental