stat.c revision e9d806fa2661cf685fc5c5d0172ff15193c9c8b1
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 10#include "fio.h" 11#include "diskutil.h" 12#include "lib/ieee754.h" 13#include "json.h" 14#include "lib/getrusage.h" 15#include "idletime.h" 16 17void update_rusage_stat(struct thread_data *td) 18{ 19 struct thread_stat *ts = &td->ts; 20 21 fio_getrusage(&td->ru_end); 22 ts->usr_time += mtime_since(&td->ru_start.ru_utime, 23 &td->ru_end.ru_utime); 24 ts->sys_time += mtime_since(&td->ru_start.ru_stime, 25 &td->ru_end.ru_stime); 26 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw 27 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw); 28 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt; 29 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt; 30 31 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end)); 32} 33 34/* 35 * Given a latency, return the index of the corresponding bucket in 36 * the structure tracking percentiles. 37 * 38 * (1) find the group (and error bits) that the value (latency) 39 * belongs to by looking at its MSB. (2) find the bucket number in the 40 * group by looking at the index bits. 41 * 42 */ 43static unsigned int plat_val_to_idx(unsigned int val) 44{ 45 unsigned int msb, error_bits, base, offset, idx; 46 47 /* Find MSB starting from bit 0 */ 48 if (val == 0) 49 msb = 0; 50 else 51 msb = (sizeof(val)*8) - __builtin_clz(val) - 1; 52 53 /* 54 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use 55 * all bits of the sample as index 56 */ 57 if (msb <= FIO_IO_U_PLAT_BITS) 58 return val; 59 60 /* Compute the number of error bits to discard*/ 61 error_bits = msb - FIO_IO_U_PLAT_BITS; 62 63 /* Compute the number of buckets before the group */ 64 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS; 65 66 /* 67 * Discard the error bits and apply the mask to find the 68 * index for the buckets in the group 69 */ 70 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits); 71 72 /* Make sure the index does not exceed (array size - 1) */ 73 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ? 74 (base + offset) : (FIO_IO_U_PLAT_NR - 1); 75 76 return idx; 77} 78 79/* 80 * Convert the given index of the bucket array to the value 81 * represented by the bucket 82 */ 83static unsigned int plat_idx_to_val(unsigned int idx) 84{ 85 unsigned int error_bits, k, base; 86 87 assert(idx < FIO_IO_U_PLAT_NR); 88 89 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use 90 * all bits of the sample as index */ 91 if (idx < (FIO_IO_U_PLAT_VAL << 1)) 92 return idx; 93 94 /* Find the group and compute the minimum value of that group */ 95 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1; 96 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS); 97 98 /* Find its bucket number of the group */ 99 k = idx % FIO_IO_U_PLAT_VAL; 100 101 /* Return the mean of the range of the bucket */ 102 return base + ((k + 0.5) * (1 << error_bits)); 103} 104 105static int double_cmp(const void *a, const void *b) 106{ 107 const fio_fp64_t fa = *(const fio_fp64_t *) a; 108 const fio_fp64_t fb = *(const fio_fp64_t *) b; 109 int cmp = 0; 110 111 if (fa.u.f > fb.u.f) 112 cmp = 1; 113 else if (fa.u.f < fb.u.f) 114 cmp = -1; 115 116 return cmp; 117} 118 119unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, 120 fio_fp64_t *plist, unsigned int **output, 121 unsigned int *maxv, unsigned int *minv) 122{ 123 unsigned long sum = 0; 124 unsigned int len, i, j = 0; 125 unsigned int oval_len = 0; 126 unsigned int *ovals = NULL; 127 int is_last; 128 129 *minv = -1U; 130 *maxv = 0; 131 132 len = 0; 133 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0) 134 len++; 135 136 if (!len) 137 return 0; 138 139 /* 140 * Sort the percentile list. Note that it may already be sorted if 141 * we are using the default values, but since it's a short list this 142 * isn't a worry. Also note that this does not work for NaN values. 143 */ 144 if (len > 1) 145 qsort((void *)plist, len, sizeof(plist[0]), double_cmp); 146 147 /* 148 * Calculate bucket values, note down max and min values 149 */ 150 is_last = 0; 151 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) { 152 sum += io_u_plat[i]; 153 while (sum >= (plist[j].u.f / 100.0 * nr)) { 154 assert(plist[j].u.f <= 100.0); 155 156 if (j == oval_len) { 157 oval_len += 100; 158 ovals = realloc(ovals, oval_len * sizeof(unsigned int)); 159 } 160 161 ovals[j] = plat_idx_to_val(i); 162 if (ovals[j] < *minv) 163 *minv = ovals[j]; 164 if (ovals[j] > *maxv) 165 *maxv = ovals[j]; 166 167 is_last = (j == len - 1); 168 if (is_last) 169 break; 170 171 j++; 172 } 173 } 174 175 *output = ovals; 176 return len; 177} 178 179/* 180 * Find and display the p-th percentile of clat 181 */ 182static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, 183 fio_fp64_t *plist, unsigned int precision) 184{ 185 unsigned int len, j = 0, minv, maxv; 186 unsigned int *ovals; 187 int is_last, per_line, scale_down; 188 char fmt[32]; 189 190 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv); 191 if (!len) 192 goto out; 193 194 /* 195 * We default to usecs, but if the value range is such that we 196 * should scale down to msecs, do that. 197 */ 198 if (minv > 2000 && maxv > 99999) { 199 scale_down = 1; 200 log_info(" clat percentiles (msec):\n |"); 201 } else { 202 scale_down = 0; 203 log_info(" clat percentiles (usec):\n |"); 204 } 205 206 snprintf(fmt, sizeof(fmt), "%%1.%uf", precision); 207 per_line = (80 - 7) / (precision + 14); 208 209 for (j = 0; j < len; j++) { 210 char fbuf[16], *ptr = fbuf; 211 212 /* for formatting */ 213 if (j != 0 && (j % per_line) == 0) 214 log_info(" |"); 215 216 /* end of the list */ 217 is_last = (j == len - 1); 218 219 if (plist[j].u.f < 10.0) 220 ptr += sprintf(fbuf, " "); 221 222 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f); 223 224 if (scale_down) 225 ovals[j] = (ovals[j] + 999) / 1000; 226 227 log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ','); 228 229 if (is_last) 230 break; 231 232 if ((j % per_line) == per_line - 1) /* for formatting */ 233 log_info("\n"); 234 } 235 236out: 237 if (ovals) 238 free(ovals); 239} 240 241int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, 242 double *mean, double *dev) 243{ 244 double n = is->samples; 245 246 if (is->samples == 0) 247 return 0; 248 249 *min = is->min_val; 250 *max = is->max_val; 251 252 n = (double) is->samples; 253 *mean = is->mean.u.f; 254 255 if (n > 1.0) 256 *dev = sqrt(is->S.u.f / (n - 1.0)); 257 else 258 *dev = 0; 259 260 return 1; 261} 262 263void show_group_stats(struct group_run_stats *rs) 264{ 265 char *p1, *p2, *p3, *p4; 266 const char *ddir_str[] = { " READ", " WRITE" , " TRIM"}; 267 int i; 268 269 log_info("\nRun status group %d (all jobs):\n", rs->groupid); 270 271 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 272 const int i2p = is_power_of_2(rs->kb_base); 273 274 if (!rs->max_run[i]) 275 continue; 276 277 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8); 278 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base); 279 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base); 280 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base); 281 282 log_info("%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s," 283 " mint=%llumsec, maxt=%llumsec\n", 284 rs->unified_rw_rep ? " MIXED" : ddir_str[i], 285 p1, p2, p3, p4, rs->min_run[i], rs->max_run[i]); 286 287 free(p1); 288 free(p2); 289 free(p3); 290 free(p4); 291 } 292} 293 294void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist) 295{ 296 int i; 297 298 /* 299 * Do depth distribution calculations 300 */ 301 for (i = 0; i < FIO_IO_U_MAP_NR; i++) { 302 if (total) { 303 io_u_dist[i] = (double) map[i] / (double) total; 304 io_u_dist[i] *= 100.0; 305 if (io_u_dist[i] < 0.1 && map[i]) 306 io_u_dist[i] = 0.1; 307 } else 308 io_u_dist[i] = 0.0; 309 } 310} 311 312static void stat_calc_lat(struct thread_stat *ts, double *dst, 313 unsigned int *src, int nr) 314{ 315 unsigned long total = ddir_rw_sum(ts->total_io_u); 316 int i; 317 318 /* 319 * Do latency distribution calculations 320 */ 321 for (i = 0; i < nr; i++) { 322 if (total) { 323 dst[i] = (double) src[i] / (double) total; 324 dst[i] *= 100.0; 325 if (dst[i] < 0.01 && src[i]) 326 dst[i] = 0.01; 327 } else 328 dst[i] = 0.0; 329 } 330} 331 332void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat) 333{ 334 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR); 335} 336 337void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat) 338{ 339 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR); 340} 341 342static void display_lat(const char *name, unsigned long min, unsigned long max, 343 double mean, double dev) 344{ 345 const char *base = "(usec)"; 346 char *minp, *maxp; 347 348 if (!usec_to_msec(&min, &max, &mean, &dev)) 349 base = "(msec)"; 350 351 minp = num2str(min, 6, 1, 0, 0); 352 maxp = num2str(max, 6, 1, 0, 0); 353 354 log_info(" %s %s: min=%s, max=%s, avg=%5.02f," 355 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev); 356 357 free(minp); 358 free(maxp); 359} 360 361static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, 362 int ddir) 363{ 364 const char *ddir_str[] = { "read ", "write", "trim" }; 365 unsigned long min, max, runt; 366 unsigned long long bw, iops; 367 double mean, dev; 368 char *io_p, *bw_p, *iops_p; 369 int i2p; 370 371 assert(ddir_rw(ddir)); 372 373 if (!ts->runtime[ddir]) 374 return; 375 376 i2p = is_power_of_2(rs->kb_base); 377 runt = ts->runtime[ddir]; 378 379 bw = (1000 * ts->io_bytes[ddir]) / runt; 380 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8); 381 bw_p = num2str(bw, 6, 1, i2p, ts->unit_base); 382 383 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt; 384 iops_p = num2str(iops, 6, 1, 0, 0); 385 386 log_info(" %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n", 387 rs->unified_rw_rep ? "mixed" : ddir_str[ddir], 388 io_p, bw_p, iops_p, ts->runtime[ddir]); 389 390 free(io_p); 391 free(bw_p); 392 free(iops_p); 393 394 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) 395 display_lat("slat", min, max, mean, dev); 396 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) 397 display_lat("clat", min, max, mean, dev); 398 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) 399 display_lat(" lat", min, max, mean, dev); 400 401 if (ts->clat_percentiles) { 402 show_clat_percentiles(ts->io_u_plat[ddir], 403 ts->clat_stat[ddir].samples, 404 ts->percentile_list, 405 ts->percentile_precision); 406 } 407 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { 408 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base; 409 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB"); 410 411 if (rs->unit_base == 1) { 412 min *= 8.0; 413 max *= 8.0; 414 mean *= 8.0; 415 dev *= 8.0; 416 } 417 418 if (rs->agg[ddir]) { 419 p_of_agg = mean * 100 / (double) rs->agg[ddir]; 420 if (p_of_agg > 100.0) 421 p_of_agg = 100.0; 422 } 423 424 if (mean > fkb_base * fkb_base) { 425 min /= fkb_base; 426 max /= fkb_base; 427 mean /= fkb_base; 428 dev /= fkb_base; 429 bw_str = (rs->unit_base == 1 ? "Mbit" : "MB"); 430 } 431 432 log_info(" bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%," 433 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max, 434 p_of_agg, mean, dev); 435 } 436} 437 438static int show_lat(double *io_u_lat, int nr, const char **ranges, 439 const char *msg) 440{ 441 int new_line = 1, i, line = 0, shown = 0; 442 443 for (i = 0; i < nr; i++) { 444 if (io_u_lat[i] <= 0.0) 445 continue; 446 shown = 1; 447 if (new_line) { 448 if (line) 449 log_info("\n"); 450 log_info(" lat (%s) : ", msg); 451 new_line = 0; 452 line = 0; 453 } 454 if (line) 455 log_info(", "); 456 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]); 457 line++; 458 if (line == 5) 459 new_line = 1; 460 } 461 462 if (shown) 463 log_info("\n"); 464 465 return shown; 466} 467 468static void show_lat_u(double *io_u_lat_u) 469{ 470 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", 471 "250=", "500=", "750=", "1000=", }; 472 473 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec"); 474} 475 476static void show_lat_m(double *io_u_lat_m) 477{ 478 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", 479 "250=", "500=", "750=", "1000=", "2000=", 480 ">=2000=", }; 481 482 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec"); 483} 484 485static void show_latencies(struct thread_stat *ts) 486{ 487 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 488 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 489 490 stat_calc_lat_u(ts, io_u_lat_u); 491 stat_calc_lat_m(ts, io_u_lat_m); 492 493 show_lat_u(io_u_lat_u); 494 show_lat_m(io_u_lat_m); 495} 496 497void show_thread_status(struct thread_stat *ts, struct group_run_stats *rs) 498{ 499 double usr_cpu, sys_cpu; 500 unsigned long runtime; 501 double io_u_dist[FIO_IO_U_MAP_NR]; 502 time_t time_p; 503 char time_buf[64]; 504 505 if (!(ts->io_bytes[DDIR_READ] + ts->io_bytes[DDIR_WRITE] + 506 ts->io_bytes[DDIR_TRIM]) && !(ts->total_io_u[DDIR_READ] + 507 ts->total_io_u[DDIR_WRITE] + ts->total_io_u[DDIR_TRIM])) 508 return; 509 510 time(&time_p); 511 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf)); 512 513 if (!ts->error) { 514 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s", 515 ts->name, ts->groupid, ts->members, 516 ts->error, (int) ts->pid, time_buf); 517 } else { 518 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s", 519 ts->name, ts->groupid, ts->members, 520 ts->error, ts->verror, (int) ts->pid, 521 time_buf); 522 } 523 524 if (strlen(ts->description)) 525 log_info(" Description : [%s]\n", ts->description); 526 527 if (ts->io_bytes[DDIR_READ]) 528 show_ddir_status(rs, ts, DDIR_READ); 529 if (ts->io_bytes[DDIR_WRITE]) 530 show_ddir_status(rs, ts, DDIR_WRITE); 531 if (ts->io_bytes[DDIR_TRIM]) 532 show_ddir_status(rs, ts, DDIR_TRIM); 533 534 show_latencies(ts); 535 536 runtime = ts->total_run_time; 537 if (runtime) { 538 double runt = (double) runtime; 539 540 usr_cpu = (double) ts->usr_time * 100 / runt; 541 sys_cpu = (double) ts->sys_time * 100 / runt; 542 } else { 543 usr_cpu = 0; 544 sys_cpu = 0; 545 } 546 547 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu," 548 " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf); 549 550 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); 551 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%," 552 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 553 io_u_dist[1], io_u_dist[2], 554 io_u_dist[3], io_u_dist[4], 555 io_u_dist[5], io_u_dist[6]); 556 557 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist); 558 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," 559 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 560 io_u_dist[1], io_u_dist[2], 561 io_u_dist[3], io_u_dist[4], 562 io_u_dist[5], io_u_dist[6]); 563 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist); 564 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," 565 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 566 io_u_dist[1], io_u_dist[2], 567 io_u_dist[3], io_u_dist[4], 568 io_u_dist[5], io_u_dist[6]); 569 log_info(" issued : total=r=%lu/w=%lu/d=%lu," 570 " short=r=%lu/w=%lu/d=%lu\n", 571 ts->total_io_u[0], ts->total_io_u[1], 572 ts->total_io_u[2], 573 ts->short_io_u[0], ts->short_io_u[1], 574 ts->short_io_u[2]); 575 if (ts->continue_on_error) { 576 log_info(" errors : total=%llu, first_error=%d/<%s>\n", 577 ts->total_err_count, 578 ts->first_error, 579 strerror(ts->first_error)); 580 } 581} 582 583static void show_ddir_status_terse(struct thread_stat *ts, 584 struct group_run_stats *rs, int ddir) 585{ 586 unsigned long min, max; 587 unsigned long long bw, iops; 588 unsigned int *ovals = NULL; 589 double mean, dev; 590 unsigned int len, minv, maxv; 591 int i; 592 593 assert(ddir_rw(ddir)); 594 595 iops = bw = 0; 596 if (ts->runtime[ddir]) { 597 uint64_t runt = ts->runtime[ddir]; 598 599 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; 600 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt; 601 } 602 603 log_info(";%llu;%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, iops, 604 ts->runtime[ddir]); 605 606 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) 607 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 608 else 609 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 610 611 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) 612 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 613 else 614 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 615 616 if (ts->clat_percentiles) { 617 len = calc_clat_percentiles(ts->io_u_plat[ddir], 618 ts->clat_stat[ddir].samples, 619 ts->percentile_list, &ovals, &maxv, 620 &minv); 621 } else 622 len = 0; 623 624 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { 625 if (i >= len) { 626 log_info(";0%%=0"); 627 continue; 628 } 629 log_info(";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]); 630 } 631 632 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) 633 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 634 else 635 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 636 637 if (ovals) 638 free(ovals); 639 640 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { 641 double p_of_agg = 100.0; 642 643 if (rs->agg[ddir]) { 644 p_of_agg = mean * 100 / (double) rs->agg[ddir]; 645 if (p_of_agg > 100.0) 646 p_of_agg = 100.0; 647 } 648 649 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev); 650 } else 651 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0); 652} 653 654static void add_ddir_status_json(struct thread_stat *ts, 655 struct group_run_stats *rs, int ddir, struct json_object *parent) 656{ 657 unsigned long min, max; 658 unsigned long long bw, iops; 659 unsigned int *ovals = NULL; 660 double mean, dev; 661 unsigned int len, minv, maxv; 662 int i; 663 const char *ddirname[] = {"read", "write", "trim"}; 664 struct json_object *dir_object, *tmp_object, *percentile_object; 665 char buf[120]; 666 double p_of_agg = 100.0; 667 668 assert(ddir_rw(ddir)); 669 670 if (ts->unified_rw_rep && ddir != DDIR_READ) 671 return; 672 673 dir_object = json_create_object(); 674 json_object_add_value_object(parent, 675 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object); 676 677 iops = bw = 0; 678 if (ts->runtime[ddir]) { 679 uint64_t runt = ts->runtime[ddir]; 680 681 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; 682 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt; 683 } 684 685 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10); 686 json_object_add_value_int(dir_object, "bw", bw); 687 json_object_add_value_int(dir_object, "iops", iops); 688 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]); 689 690 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) { 691 min = max = 0; 692 mean = dev = 0.0; 693 } 694 tmp_object = json_create_object(); 695 json_object_add_value_object(dir_object, "slat", tmp_object); 696 json_object_add_value_int(tmp_object, "min", min); 697 json_object_add_value_int(tmp_object, "max", max); 698 json_object_add_value_float(tmp_object, "mean", mean); 699 json_object_add_value_float(tmp_object, "stddev", dev); 700 701 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) { 702 min = max = 0; 703 mean = dev = 0.0; 704 } 705 tmp_object = json_create_object(); 706 json_object_add_value_object(dir_object, "clat", tmp_object); 707 json_object_add_value_int(tmp_object, "min", min); 708 json_object_add_value_int(tmp_object, "max", max); 709 json_object_add_value_float(tmp_object, "mean", mean); 710 json_object_add_value_float(tmp_object, "stddev", dev); 711 712 if (ts->clat_percentiles) { 713 len = calc_clat_percentiles(ts->io_u_plat[ddir], 714 ts->clat_stat[ddir].samples, 715 ts->percentile_list, &ovals, &maxv, 716 &minv); 717 } else 718 len = 0; 719 720 percentile_object = json_create_object(); 721 json_object_add_value_object(tmp_object, "percentile", percentile_object); 722 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { 723 if (i >= len) { 724 json_object_add_value_int(percentile_object, "0.00", 0); 725 continue; 726 } 727 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f); 728 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]); 729 } 730 731 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) { 732 min = max = 0; 733 mean = dev = 0.0; 734 } 735 tmp_object = json_create_object(); 736 json_object_add_value_object(dir_object, "lat", tmp_object); 737 json_object_add_value_int(tmp_object, "min", min); 738 json_object_add_value_int(tmp_object, "max", max); 739 json_object_add_value_float(tmp_object, "mean", mean); 740 json_object_add_value_float(tmp_object, "stddev", dev); 741 if (ovals) 742 free(ovals); 743 744 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { 745 if (rs->agg[ddir]) { 746 p_of_agg = mean * 100 / (double) rs->agg[ddir]; 747 if (p_of_agg > 100.0) 748 p_of_agg = 100.0; 749 } 750 } else { 751 min = max = 0; 752 p_of_agg = mean = dev = 0.0; 753 } 754 json_object_add_value_int(dir_object, "bw_min", min); 755 json_object_add_value_int(dir_object, "bw_max", max); 756 json_object_add_value_float(dir_object, "bw_agg", mean); 757 json_object_add_value_float(dir_object, "bw_mean", mean); 758 json_object_add_value_float(dir_object, "bw_dev", dev); 759} 760 761static void show_thread_status_terse_v2(struct thread_stat *ts, 762 struct group_run_stats *rs) 763{ 764 double io_u_dist[FIO_IO_U_MAP_NR]; 765 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 766 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 767 double usr_cpu, sys_cpu; 768 int i; 769 770 /* General Info */ 771 log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error); 772 /* Log Read Status */ 773 show_ddir_status_terse(ts, rs, DDIR_READ); 774 /* Log Write Status */ 775 show_ddir_status_terse(ts, rs, DDIR_WRITE); 776 /* Log Trim Status */ 777 show_ddir_status_terse(ts, rs, DDIR_TRIM); 778 779 /* CPU Usage */ 780 if (ts->total_run_time) { 781 double runt = (double) ts->total_run_time; 782 783 usr_cpu = (double) ts->usr_time * 100 / runt; 784 sys_cpu = (double) ts->sys_time * 100 / runt; 785 } else { 786 usr_cpu = 0; 787 sys_cpu = 0; 788 } 789 790 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, 791 ts->minf); 792 793 /* Calc % distribution of IO depths, usecond, msecond latency */ 794 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); 795 stat_calc_lat_u(ts, io_u_lat_u); 796 stat_calc_lat_m(ts, io_u_lat_m); 797 798 /* Only show fixed 7 I/O depth levels*/ 799 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", 800 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], 801 io_u_dist[4], io_u_dist[5], io_u_dist[6]); 802 803 /* Microsecond latency */ 804 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) 805 log_info(";%3.2f%%", io_u_lat_u[i]); 806 /* Millisecond latency */ 807 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) 808 log_info(";%3.2f%%", io_u_lat_m[i]); 809 /* Additional output if continue_on_error set - default off*/ 810 if (ts->continue_on_error) 811 log_info(";%lu;%d", ts->total_err_count, ts->first_error); 812 log_info("\n"); 813 814 /* Additional output if description is set */ 815 if (ts->description) 816 log_info(";%s", ts->description); 817 818 log_info("\n"); 819} 820 821static void show_thread_status_terse_v3_v4(struct thread_stat *ts, 822 struct group_run_stats *rs, int ver) 823{ 824 double io_u_dist[FIO_IO_U_MAP_NR]; 825 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 826 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 827 double usr_cpu, sys_cpu; 828 int i; 829 830 /* General Info */ 831 log_info("%d;%s;%s;%d;%d", ver, fio_version_string, 832 ts->name, ts->groupid, ts->error); 833 /* Log Read Status */ 834 show_ddir_status_terse(ts, rs, DDIR_READ); 835 /* Log Write Status */ 836 show_ddir_status_terse(ts, rs, DDIR_WRITE); 837 /* Log Trim Status */ 838 if (ver == 4) 839 show_ddir_status_terse(ts, rs, DDIR_TRIM); 840 841 /* CPU Usage */ 842 if (ts->total_run_time) { 843 double runt = (double) ts->total_run_time; 844 845 usr_cpu = (double) ts->usr_time * 100 / runt; 846 sys_cpu = (double) ts->sys_time * 100 / runt; 847 } else { 848 usr_cpu = 0; 849 sys_cpu = 0; 850 } 851 852 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, 853 ts->minf); 854 855 /* Calc % distribution of IO depths, usecond, msecond latency */ 856 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); 857 stat_calc_lat_u(ts, io_u_lat_u); 858 stat_calc_lat_m(ts, io_u_lat_m); 859 860 /* Only show fixed 7 I/O depth levels*/ 861 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", 862 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], 863 io_u_dist[4], io_u_dist[5], io_u_dist[6]); 864 865 /* Microsecond latency */ 866 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) 867 log_info(";%3.2f%%", io_u_lat_u[i]); 868 /* Millisecond latency */ 869 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) 870 log_info(";%3.2f%%", io_u_lat_m[i]); 871 872 /* disk util stats, if any */ 873 show_disk_util(1, NULL); 874 875 /* Additional output if continue_on_error set - default off*/ 876 if (ts->continue_on_error) 877 log_info(";%lu;%d", ts->total_err_count, ts->first_error); 878 879 /* Additional output if description is set */ 880 if (strlen(ts->description)) 881 log_info(";%s", ts->description); 882 883 log_info("\n"); 884} 885 886static struct json_object *show_thread_status_json(struct thread_stat *ts, 887 struct group_run_stats *rs) 888{ 889 struct json_object *root, *tmp; 890 double io_u_dist[FIO_IO_U_MAP_NR]; 891 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 892 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 893 double usr_cpu, sys_cpu; 894 int i; 895 896 root = json_create_object(); 897 json_object_add_value_string(root, "jobname", ts->name); 898 json_object_add_value_int(root, "groupid", ts->groupid); 899 json_object_add_value_int(root, "error", ts->error); 900 901 add_ddir_status_json(ts, rs, DDIR_READ, root); 902 add_ddir_status_json(ts, rs, DDIR_WRITE, root); 903 add_ddir_status_json(ts, rs, DDIR_TRIM, root); 904 905 /* CPU Usage */ 906 if (ts->total_run_time) { 907 double runt = (double) ts->total_run_time; 908 909 usr_cpu = (double) ts->usr_time * 100 / runt; 910 sys_cpu = (double) ts->sys_time * 100 / runt; 911 } else { 912 usr_cpu = 0; 913 sys_cpu = 0; 914 } 915 json_object_add_value_float(root, "usr_cpu", usr_cpu); 916 json_object_add_value_float(root, "sys_cpu", sys_cpu); 917 json_object_add_value_int(root, "ctx", ts->ctx); 918 json_object_add_value_int(root, "majf", ts->majf); 919 json_object_add_value_int(root, "minf", ts->minf); 920 921 922 /* Calc % distribution of IO depths, usecond, msecond latency */ 923 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); 924 stat_calc_lat_u(ts, io_u_lat_u); 925 stat_calc_lat_m(ts, io_u_lat_m); 926 927 tmp = json_create_object(); 928 json_object_add_value_object(root, "iodepth_level", tmp); 929 /* Only show fixed 7 I/O depth levels*/ 930 for (i = 0; i < 7; i++) { 931 char name[20]; 932 if (i < 6) 933 snprintf(name, 20, "%d", 1 << i); 934 else 935 snprintf(name, 20, ">=%d", 1 << i); 936 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]); 937 } 938 939 tmp = json_create_object(); 940 json_object_add_value_object(root, "latency_us", tmp); 941 /* Microsecond latency */ 942 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { 943 const char *ranges[] = { "2", "4", "10", "20", "50", "100", 944 "250", "500", "750", "1000", }; 945 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]); 946 } 947 /* Millisecond latency */ 948 tmp = json_create_object(); 949 json_object_add_value_object(root, "latency_ms", tmp); 950 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) { 951 const char *ranges[] = { "2", "4", "10", "20", "50", "100", 952 "250", "500", "750", "1000", "2000", 953 ">=2000", }; 954 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]); 955 } 956 957 /* Additional output if continue_on_error set - default off*/ 958 if (ts->continue_on_error) { 959 json_object_add_value_int(root, "total_err", ts->total_err_count); 960 json_object_add_value_int(root, "total_err", ts->first_error); 961 } 962 963 /* Additional output if description is set */ 964 if (strlen(ts->description)) 965 json_object_add_value_string(root, "desc", ts->description); 966 967 return root; 968} 969 970static void show_thread_status_terse(struct thread_stat *ts, 971 struct group_run_stats *rs) 972{ 973 if (terse_version == 2) 974 show_thread_status_terse_v2(ts, rs); 975 else if (terse_version == 3 || terse_version == 4) 976 show_thread_status_terse_v3_v4(ts, rs, terse_version); 977 else 978 log_err("fio: bad terse version!? %d\n", terse_version); 979} 980 981static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) 982{ 983 double mean, S; 984 985 if (src->samples == 0) 986 return; 987 988 dst->min_val = min(dst->min_val, src->min_val); 989 dst->max_val = max(dst->max_val, src->max_val); 990 991 /* 992 * Compute new mean and S after the merge 993 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance 994 * #Parallel_algorithm> 995 */ 996 if (nr == 1) { 997 mean = src->mean.u.f; 998 S = src->S.u.f; 999 } else { 1000 double delta = src->mean.u.f - dst->mean.u.f; 1001 1002 mean = ((src->mean.u.f * src->samples) + 1003 (dst->mean.u.f * dst->samples)) / 1004 (dst->samples + src->samples); 1005 1006 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) * 1007 (dst->samples * src->samples) / 1008 (dst->samples + src->samples); 1009 } 1010 1011 dst->samples += src->samples; 1012 dst->mean.u.f = mean; 1013 dst->S.u.f = S; 1014} 1015 1016void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src) 1017{ 1018 int i; 1019 1020 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 1021 if (dst->max_run[i] < src->max_run[i]) 1022 dst->max_run[i] = src->max_run[i]; 1023 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i]) 1024 dst->min_run[i] = src->min_run[i]; 1025 if (dst->max_bw[i] < src->max_bw[i]) 1026 dst->max_bw[i] = src->max_bw[i]; 1027 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i]) 1028 dst->min_bw[i] = src->min_bw[i]; 1029 1030 dst->io_kb[i] += src->io_kb[i]; 1031 dst->agg[i] += src->agg[i]; 1032 } 1033 1034} 1035 1036void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr) 1037{ 1038 int l, k; 1039 1040 for (l = 0; l < DDIR_RWDIR_CNT; l++) { 1041 if (!dst->unified_rw_rep) { 1042 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr); 1043 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr); 1044 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr); 1045 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr); 1046 1047 dst->io_bytes[l] += src->io_bytes[l]; 1048 1049 if (dst->runtime[l] < src->runtime[l]) 1050 dst->runtime[l] = src->runtime[l]; 1051 } else { 1052 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr); 1053 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr); 1054 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr); 1055 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr); 1056 1057 dst->io_bytes[0] += src->io_bytes[l]; 1058 1059 if (dst->runtime[0] < src->runtime[l]) 1060 dst->runtime[0] = src->runtime[l]; 1061 } 1062 } 1063 1064 dst->usr_time += src->usr_time; 1065 dst->sys_time += src->sys_time; 1066 dst->ctx += src->ctx; 1067 dst->majf += src->majf; 1068 dst->minf += src->minf; 1069 1070 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 1071 dst->io_u_map[k] += src->io_u_map[k]; 1072 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 1073 dst->io_u_submit[k] += src->io_u_submit[k]; 1074 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 1075 dst->io_u_complete[k] += src->io_u_complete[k]; 1076 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++) 1077 dst->io_u_lat_u[k] += src->io_u_lat_u[k]; 1078 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++) 1079 dst->io_u_lat_m[k] += src->io_u_lat_m[k]; 1080 1081 for (k = 0; k < DDIR_RWDIR_CNT; k++) { 1082 if (!dst->unified_rw_rep) { 1083 dst->total_io_u[k] += src->total_io_u[k]; 1084 dst->short_io_u[k] += src->short_io_u[k]; 1085 } else { 1086 dst->total_io_u[0] += src->total_io_u[k]; 1087 dst->short_io_u[0] += src->short_io_u[k]; 1088 } 1089 } 1090 1091 for (k = 0; k < DDIR_RWDIR_CNT; k++) { 1092 int m; 1093 1094 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) { 1095 if (!dst->unified_rw_rep) 1096 dst->io_u_plat[k][m] += src->io_u_plat[k][m]; 1097 else 1098 dst->io_u_plat[0][m] += src->io_u_plat[k][m]; 1099 } 1100 } 1101 1102 dst->total_run_time += src->total_run_time; 1103 dst->total_submit += src->total_submit; 1104 dst->total_complete += src->total_complete; 1105} 1106 1107void init_group_run_stat(struct group_run_stats *gs) 1108{ 1109 int i; 1110 memset(gs, 0, sizeof(*gs)); 1111 1112 for (i = 0; i < DDIR_RWDIR_CNT; i++) 1113 gs->min_bw[i] = gs->min_run[i] = ~0UL; 1114} 1115 1116void init_thread_stat(struct thread_stat *ts) 1117{ 1118 int j; 1119 1120 memset(ts, 0, sizeof(*ts)); 1121 1122 for (j = 0; j < DDIR_RWDIR_CNT; j++) { 1123 ts->lat_stat[j].min_val = -1UL; 1124 ts->clat_stat[j].min_val = -1UL; 1125 ts->slat_stat[j].min_val = -1UL; 1126 ts->bw_stat[j].min_val = -1UL; 1127 } 1128 ts->groupid = -1; 1129} 1130 1131void show_run_stats(void) 1132{ 1133 struct group_run_stats *runstats, *rs; 1134 struct thread_data *td; 1135 struct thread_stat *threadstats, *ts; 1136 int i, j, nr_ts, last_ts, idx; 1137 int kb_base_warned = 0; 1138 int unit_base_warned = 0; 1139 struct json_object *root = NULL; 1140 struct json_array *array = NULL; 1141 1142 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); 1143 1144 for (i = 0; i < groupid + 1; i++) 1145 init_group_run_stat(&runstats[i]); 1146 1147 /* 1148 * find out how many threads stats we need. if group reporting isn't 1149 * enabled, it's one-per-td. 1150 */ 1151 nr_ts = 0; 1152 last_ts = -1; 1153 for_each_td(td, i) { 1154 if (!td->o.group_reporting) { 1155 nr_ts++; 1156 continue; 1157 } 1158 if (last_ts == td->groupid) 1159 continue; 1160 1161 last_ts = td->groupid; 1162 nr_ts++; 1163 } 1164 1165 threadstats = malloc(nr_ts * sizeof(struct thread_stat)); 1166 1167 for (i = 0; i < nr_ts; i++) 1168 init_thread_stat(&threadstats[i]); 1169 1170 j = 0; 1171 last_ts = -1; 1172 idx = 0; 1173 for_each_td(td, i) { 1174 if (idx && (!td->o.group_reporting || 1175 (td->o.group_reporting && last_ts != td->groupid))) { 1176 idx = 0; 1177 j++; 1178 } 1179 1180 last_ts = td->groupid; 1181 1182 ts = &threadstats[j]; 1183 1184 ts->clat_percentiles = td->o.clat_percentiles; 1185 ts->percentile_precision = td->o.percentile_precision; 1186 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); 1187 1188 idx++; 1189 ts->members++; 1190 1191 if (ts->groupid == -1) { 1192 /* 1193 * These are per-group shared already 1194 */ 1195 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE); 1196 if (td->o.description) 1197 strncpy(ts->description, td->o.description, 1198 FIO_JOBNAME_SIZE); 1199 else 1200 memset(ts->description, 0, FIO_JOBNAME_SIZE); 1201 1202 /* 1203 * If multiple entries in this group, this is 1204 * the first member. 1205 */ 1206 ts->thread_number = td->thread_number; 1207 ts->groupid = td->groupid; 1208 1209 /* 1210 * first pid in group, not very useful... 1211 */ 1212 ts->pid = td->pid; 1213 1214 ts->kb_base = td->o.kb_base; 1215 ts->unit_base = td->o.unit_base; 1216 ts->unified_rw_rep = td->o.unified_rw_rep; 1217 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) { 1218 log_info("fio: kb_base differs for jobs in group, using" 1219 " %u as the base\n", ts->kb_base); 1220 kb_base_warned = 1; 1221 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) { 1222 log_info("fio: unit_base differs for jobs in group, using" 1223 " %u as the base\n", ts->unit_base); 1224 unit_base_warned = 1; 1225 } 1226 1227 ts->continue_on_error = td->o.continue_on_error; 1228 ts->total_err_count += td->total_err_count; 1229 ts->first_error = td->first_error; 1230 if (!ts->error) { 1231 if (!td->error && td->o.continue_on_error && 1232 td->first_error) { 1233 ts->error = td->first_error; 1234 strcpy(ts->verror, td->verror); 1235 } else if (td->error) { 1236 ts->error = td->error; 1237 strcpy(ts->verror, td->verror); 1238 } 1239 } 1240 1241 sum_thread_stats(ts, &td->ts, idx); 1242 } 1243 1244 for (i = 0; i < nr_ts; i++) { 1245 unsigned long long bw; 1246 1247 ts = &threadstats[i]; 1248 rs = &runstats[ts->groupid]; 1249 rs->kb_base = ts->kb_base; 1250 rs->unit_base = ts->unit_base; 1251 rs->unified_rw_rep += ts->unified_rw_rep; 1252 1253 for (j = 0; j < DDIR_RWDIR_CNT; j++) { 1254 if (!ts->runtime[j]) 1255 continue; 1256 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j]) 1257 rs->min_run[j] = ts->runtime[j]; 1258 if (ts->runtime[j] > rs->max_run[j]) 1259 rs->max_run[j] = ts->runtime[j]; 1260 1261 bw = 0; 1262 if (ts->runtime[j]) { 1263 unsigned long runt = ts->runtime[j]; 1264 unsigned long long kb; 1265 1266 kb = ts->io_bytes[j] / rs->kb_base; 1267 bw = kb * 1000 / runt; 1268 } 1269 if (bw < rs->min_bw[j]) 1270 rs->min_bw[j] = bw; 1271 if (bw > rs->max_bw[j]) 1272 rs->max_bw[j] = bw; 1273 1274 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base; 1275 } 1276 } 1277 1278 for (i = 0; i < groupid + 1; i++) { 1279 int ddir; 1280 1281 rs = &runstats[i]; 1282 1283 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { 1284 if (rs->max_run[ddir]) 1285 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) / 1286 rs->max_run[ddir]; 1287 } 1288 } 1289 1290 /* 1291 * don't overwrite last signal output 1292 */ 1293 if (output_format == FIO_OUTPUT_NORMAL) 1294 log_info("\n"); 1295 else if (output_format == FIO_OUTPUT_JSON) { 1296 root = json_create_object(); 1297 json_object_add_value_string(root, "fio version", fio_version_string); 1298 array = json_create_array(); 1299 json_object_add_value_array(root, "jobs", array); 1300 } 1301 1302 for (i = 0; i < nr_ts; i++) { 1303 ts = &threadstats[i]; 1304 rs = &runstats[ts->groupid]; 1305 1306 if (is_backend) 1307 fio_server_send_ts(ts, rs); 1308 else if (output_format == FIO_OUTPUT_TERSE) 1309 show_thread_status_terse(ts, rs); 1310 else if (output_format == FIO_OUTPUT_JSON) { 1311 struct json_object *tmp = show_thread_status_json(ts, rs); 1312 json_array_add_value_object(array, tmp); 1313 } else 1314 show_thread_status(ts, rs); 1315 } 1316 if (output_format == FIO_OUTPUT_JSON) { 1317 /* disk util stats, if any */ 1318 show_disk_util(1, root); 1319 1320 show_idle_prof_stats(FIO_OUTPUT_JSON, root); 1321 1322 json_print_object(root); 1323 log_info("\n"); 1324 json_free_object(root); 1325 } 1326 1327 for (i = 0; i < groupid + 1; i++) { 1328 rs = &runstats[i]; 1329 1330 rs->groupid = i; 1331 if (is_backend) 1332 fio_server_send_gs(rs); 1333 else if (output_format == FIO_OUTPUT_NORMAL) 1334 show_group_stats(rs); 1335 } 1336 1337 if (is_backend) 1338 fio_server_send_du(); 1339 else if (output_format == FIO_OUTPUT_NORMAL) { 1340 show_disk_util(0, NULL); 1341 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL); 1342 } 1343 1344 free(runstats); 1345 free(threadstats); 1346} 1347 1348static void *__show_running_run_stats(void fio_unused *arg) 1349{ 1350 struct thread_data *td; 1351 unsigned long long *rt; 1352 struct timeval tv; 1353 int i; 1354 1355 rt = malloc(thread_number * sizeof(unsigned long long)); 1356 fio_gettime(&tv, NULL); 1357 1358 for_each_td(td, i) { 1359 rt[i] = mtime_since(&td->start, &tv); 1360 if (td_read(td) && td->io_bytes[DDIR_READ]) 1361 td->ts.runtime[DDIR_READ] += rt[i]; 1362 if (td_write(td) && td->io_bytes[DDIR_WRITE]) 1363 td->ts.runtime[DDIR_WRITE] += rt[i]; 1364 if (td_trim(td) && td->io_bytes[DDIR_TRIM]) 1365 td->ts.runtime[DDIR_TRIM] += rt[i]; 1366 1367 td->update_rusage = 1; 1368 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; 1369 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; 1370 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; 1371 td->ts.total_run_time = mtime_since(&td->epoch, &tv); 1372 } 1373 1374 for_each_td(td, i) { 1375 if (td->rusage_sem) { 1376 td->update_rusage = 1; 1377 fio_mutex_down(td->rusage_sem); 1378 } 1379 td->update_rusage = 0; 1380 } 1381 1382 show_run_stats(); 1383 1384 for_each_td(td, i) { 1385 if (td_read(td) && td->io_bytes[DDIR_READ]) 1386 td->ts.runtime[DDIR_READ] -= rt[i]; 1387 if (td_write(td) && td->io_bytes[DDIR_WRITE]) 1388 td->ts.runtime[DDIR_WRITE] -= rt[i]; 1389 if (td_trim(td) && td->io_bytes[DDIR_TRIM]) 1390 td->ts.runtime[DDIR_TRIM] -= rt[i]; 1391 } 1392 1393 free(rt); 1394 return NULL; 1395} 1396 1397/* 1398 * Called from signal handler. It _should_ be safe to just run this inline 1399 * in the sig handler, but we should be disturbing the system less by just 1400 * creating a thread to do it. 1401 */ 1402void show_running_run_stats(void) 1403{ 1404 pthread_t thread; 1405 1406 pthread_create(&thread, NULL, __show_running_run_stats, NULL); 1407 pthread_detach(thread); 1408} 1409 1410static inline void add_stat_sample(struct io_stat *is, unsigned long data) 1411{ 1412 double val = data; 1413 double delta; 1414 1415 if (data > is->max_val) 1416 is->max_val = data; 1417 if (data < is->min_val) 1418 is->min_val = data; 1419 1420 delta = val - is->mean.u.f; 1421 if (delta) { 1422 is->mean.u.f += delta / (is->samples + 1.0); 1423 is->S.u.f += delta * (val - is->mean.u.f); 1424 } 1425 1426 is->samples++; 1427} 1428 1429static void __add_log_sample(struct io_log *iolog, unsigned long val, 1430 enum fio_ddir ddir, unsigned int bs, 1431 unsigned long t) 1432{ 1433 const int nr_samples = iolog->nr_samples; 1434 1435 if (!iolog->nr_samples) 1436 iolog->avg_last = t; 1437 1438 if (iolog->nr_samples == iolog->max_samples) { 1439 int new_size = sizeof(struct io_sample) * iolog->max_samples*2; 1440 1441 iolog->log = realloc(iolog->log, new_size); 1442 iolog->max_samples <<= 1; 1443 } 1444 1445 iolog->log[nr_samples].val = val; 1446 iolog->log[nr_samples].time = t; 1447 iolog->log[nr_samples].ddir = ddir; 1448 iolog->log[nr_samples].bs = bs; 1449 iolog->nr_samples++; 1450} 1451 1452static inline void reset_io_stat(struct io_stat *ios) 1453{ 1454 ios->max_val = ios->min_val = ios->samples = 0; 1455 ios->mean.u.f = ios->S.u.f = 0; 1456} 1457 1458static void add_log_sample(struct thread_data *td, struct io_log *iolog, 1459 unsigned long val, enum fio_ddir ddir, 1460 unsigned int bs) 1461{ 1462 unsigned long elapsed, this_window; 1463 1464 if (!ddir_rw(ddir)) 1465 return; 1466 1467 elapsed = mtime_since_now(&td->epoch); 1468 1469 /* 1470 * If no time averaging, just add the log sample. 1471 */ 1472 if (!iolog->avg_msec) { 1473 __add_log_sample(iolog, val, ddir, bs, elapsed); 1474 return; 1475 } 1476 1477 /* 1478 * Add the sample. If the time period has passed, then 1479 * add that entry to the log and clear. 1480 */ 1481 add_stat_sample(&iolog->avg_window[ddir], val); 1482 1483 /* 1484 * If period hasn't passed, adding the above sample is all we 1485 * need to do. 1486 */ 1487 this_window = elapsed - iolog->avg_last; 1488 if (this_window < iolog->avg_msec) 1489 return; 1490 1491 /* 1492 * Note an entry in the log. Use the mean from the logged samples, 1493 * making sure to properly round up. Only write a log entry if we 1494 * had actual samples done. 1495 */ 1496 if (iolog->avg_window[DDIR_READ].samples) { 1497 unsigned long mr; 1498 1499 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50; 1500 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed); 1501 } 1502 if (iolog->avg_window[DDIR_WRITE].samples) { 1503 unsigned long mw; 1504 1505 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50; 1506 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed); 1507 } 1508 if (iolog->avg_window[DDIR_TRIM].samples) { 1509 unsigned long mw; 1510 1511 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50; 1512 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed); 1513 } 1514 1515 1516 reset_io_stat(&iolog->avg_window[DDIR_READ]); 1517 reset_io_stat(&iolog->avg_window[DDIR_WRITE]); 1518 reset_io_stat(&iolog->avg_window[DDIR_TRIM]); 1519 iolog->avg_last = elapsed; 1520} 1521 1522void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs) 1523{ 1524 struct io_log *iolog; 1525 1526 if (!ddir_rw(ddir)) 1527 return; 1528 1529 iolog = agg_io_log[ddir]; 1530 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis()); 1531} 1532 1533static void add_clat_percentile_sample(struct thread_stat *ts, 1534 unsigned long usec, enum fio_ddir ddir) 1535{ 1536 unsigned int idx = plat_val_to_idx(usec); 1537 assert(idx < FIO_IO_U_PLAT_NR); 1538 1539 ts->io_u_plat[ddir][idx]++; 1540} 1541 1542void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, 1543 unsigned long usec, unsigned int bs) 1544{ 1545 struct thread_stat *ts = &td->ts; 1546 1547 if (!ddir_rw(ddir)) 1548 return; 1549 1550 add_stat_sample(&ts->clat_stat[ddir], usec); 1551 1552 if (td->clat_log) 1553 add_log_sample(td, td->clat_log, usec, ddir, bs); 1554 1555 if (ts->clat_percentiles) 1556 add_clat_percentile_sample(ts, usec, ddir); 1557} 1558 1559void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, 1560 unsigned long usec, unsigned int bs) 1561{ 1562 struct thread_stat *ts = &td->ts; 1563 1564 if (!ddir_rw(ddir)) 1565 return; 1566 1567 add_stat_sample(&ts->slat_stat[ddir], usec); 1568 1569 if (td->slat_log) 1570 add_log_sample(td, td->slat_log, usec, ddir, bs); 1571} 1572 1573void add_lat_sample(struct thread_data *td, enum fio_ddir ddir, 1574 unsigned long usec, unsigned int bs) 1575{ 1576 struct thread_stat *ts = &td->ts; 1577 1578 if (!ddir_rw(ddir)) 1579 return; 1580 1581 add_stat_sample(&ts->lat_stat[ddir], usec); 1582 1583 if (td->lat_log) 1584 add_log_sample(td, td->lat_log, usec, ddir, bs); 1585} 1586 1587void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs, 1588 struct timeval *t) 1589{ 1590 struct thread_stat *ts = &td->ts; 1591 unsigned long spent, rate; 1592 1593 if (!ddir_rw(ddir)) 1594 return; 1595 1596 spent = mtime_since(&td->bw_sample_time, t); 1597 if (spent < td->o.bw_avg_time) 1598 return; 1599 1600 /* 1601 * Compute both read and write rates for the interval. 1602 */ 1603 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) { 1604 uint64_t delta; 1605 1606 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]; 1607 if (!delta) 1608 continue; /* No entries for interval */ 1609 1610 rate = delta * 1000 / spent / 1024; 1611 add_stat_sample(&ts->bw_stat[ddir], rate); 1612 1613 if (td->bw_log) 1614 add_log_sample(td, td->bw_log, rate, ddir, bs); 1615 1616 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; 1617 } 1618 1619 fio_gettime(&td->bw_sample_time, NULL); 1620} 1621 1622void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, 1623 struct timeval *t) 1624{ 1625 struct thread_stat *ts = &td->ts; 1626 unsigned long spent, iops; 1627 1628 if (!ddir_rw(ddir)) 1629 return; 1630 1631 spent = mtime_since(&td->iops_sample_time, t); 1632 if (spent < td->o.iops_avg_time) 1633 return; 1634 1635 /* 1636 * Compute both read and write rates for the interval. 1637 */ 1638 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) { 1639 uint64_t delta; 1640 1641 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]; 1642 if (!delta) 1643 continue; /* No entries for interval */ 1644 1645 iops = (delta * 1000) / spent; 1646 add_stat_sample(&ts->iops_stat[ddir], iops); 1647 1648 if (td->iops_log) 1649 add_log_sample(td, td->iops_log, iops, ddir, 0); 1650 1651 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir]; 1652 } 1653 1654 fio_gettime(&td->iops_sample_time, NULL); 1655} 1656