stat.c revision 0d29de831183dfd049c97a03008d425ce21e2fa4
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 13void update_rusage_stat(struct thread_data *td) 14{ 15 struct thread_stat *ts = &td->ts; 16 17 getrusage(RUSAGE_SELF, &ts->ru_end); 18 19 ts->usr_time += mtime_since(&ts->ru_start.ru_utime, 20 &ts->ru_end.ru_utime); 21 ts->sys_time += mtime_since(&ts->ru_start.ru_stime, 22 &ts->ru_end.ru_stime); 23 ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw 24 - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw); 25 ts->minf += ts->ru_end.ru_minflt - ts->ru_start.ru_minflt; 26 ts->majf += ts->ru_end.ru_majflt - ts->ru_start.ru_majflt; 27 28 memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end)); 29} 30 31static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, 32 double *mean, double *dev) 33{ 34 double n = is->samples; 35 36 if (is->samples == 0) 37 return 0; 38 39 *min = is->min_val; 40 *max = is->max_val; 41 42 n = (double) is->samples; 43 *mean = is->mean; 44 45 if (n > 1.0) 46 *dev = sqrt(is->S / (n - 1.0)); 47 else 48 *dev = 0; 49 50 return 1; 51} 52 53static void show_group_stats(struct group_run_stats *rs, int id) 54{ 55 char *p1, *p2, *p3, *p4; 56 const char *ddir_str[] = { " READ", " WRITE" }; 57 int i; 58 59 log_info("\nRun status group %d (all jobs):\n", id); 60 61 for (i = 0; i <= DDIR_WRITE; i++) { 62 const int i2p = is_power_of_2(rs->kb_base); 63 64 if (!rs->max_run[i]) 65 continue; 66 67 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p); 68 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p); 69 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p); 70 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p); 71 72 log_info("%s: io=%sB, aggrb=%sB/s, minb=%sB/s, maxb=%sB/s," 73 " mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, 74 p3, p4, rs->min_run[i], 75 rs->max_run[i]); 76 77 free(p1); 78 free(p2); 79 free(p3); 80 free(p4); 81 } 82} 83 84#define ts_total_io_u(ts) \ 85 ((ts)->total_io_u[0] + (ts)->total_io_u[1]) 86 87static void stat_calc_dist(unsigned int *map, unsigned long total, 88 double *io_u_dist) 89{ 90 int i; 91 92 /* 93 * Do depth distribution calculations 94 */ 95 for (i = 0; i < FIO_IO_U_MAP_NR; i++) { 96 if (total) { 97 io_u_dist[i] = (double) map[i] / (double) total; 98 io_u_dist[i] *= 100.0; 99 if (io_u_dist[i] < 0.1 && map[i]) 100 io_u_dist[i] = 0.1; 101 } else 102 io_u_dist[i] = 0.0; 103 } 104} 105 106static void stat_calc_lat(struct thread_stat *ts, double *dst, 107 unsigned int *src, int nr) 108{ 109 unsigned long total = ts_total_io_u(ts); 110 int i; 111 112 /* 113 * Do latency distribution calculations 114 */ 115 for (i = 0; i < nr; i++) { 116 if (total) { 117 dst[i] = (double) src[i] / (double) total; 118 dst[i] *= 100.0; 119 if (dst[i] < 0.01 && src[i]) 120 dst[i] = 0.01; 121 } else 122 dst[i] = 0.0; 123 } 124} 125 126static void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat) 127{ 128 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR); 129} 130 131static void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat) 132{ 133 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR); 134} 135 136static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean, 137 double *dev) 138{ 139 if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) { 140 *min /= 1000; 141 *max /= 1000; 142 *mean /= 1000.0; 143 *dev /= 1000.0; 144 return 0; 145 } 146 147 return 1; 148} 149 150static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, 151 int ddir) 152{ 153 const char *ddir_str[] = { "read ", "write" }; 154 unsigned long min, max, runt; 155 unsigned long long bw, iops; 156 double mean, dev; 157 char *io_p, *bw_p, *iops_p; 158 int i2p; 159 160 assert(ddir_rw(ddir)); 161 162 if (!ts->runtime[ddir]) 163 return; 164 165 i2p = is_power_of_2(rs->kb_base); 166 runt = ts->runtime[ddir]; 167 168 bw = (1000 * ts->io_bytes[ddir]) / runt; 169 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p); 170 bw_p = num2str(bw, 6, 1, i2p); 171 172 iops = (1000 * ts->total_io_u[ddir]) / runt; 173 iops_p = num2str(iops, 6, 1, 0); 174 175 log_info(" %s: io=%sB, bw=%sB/s, iops=%s, runt=%6lumsec\n", 176 ddir_str[ddir], io_p, bw_p, iops_p, 177 ts->runtime[ddir]); 178 179 free(io_p); 180 free(bw_p); 181 free(iops_p); 182 183 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) { 184 const char *base = "(usec)"; 185 char *minp, *maxp; 186 187 if (!usec_to_msec(&min, &max, &mean, &dev)) 188 base = "(msec)"; 189 190 minp = num2str(min, 6, 1, 0); 191 maxp = num2str(max, 6, 1, 0); 192 193 log_info(" slat %s: min=%s, max=%s, avg=%5.02f," 194 " stdev=%5.02f\n", base, minp, maxp, mean, dev); 195 196 free(minp); 197 free(maxp); 198 } 199 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) { 200 const char *base = "(usec)"; 201 char *minp, *maxp; 202 203 if (!usec_to_msec(&min, &max, &mean, &dev)) 204 base = "(msec)"; 205 206 minp = num2str(min, 6, 1, 0); 207 maxp = num2str(max, 6, 1, 0); 208 209 log_info(" clat %s: min=%s, max=%s, avg=%5.02f," 210 " stdev=%5.02f\n", base, minp, maxp, mean, dev); 211 212 free(minp); 213 free(maxp); 214 } 215 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) { 216 const char *base = "(usec)"; 217 char *minp, *maxp; 218 219 if (!usec_to_msec(&min, &max, &mean, &dev)) 220 base = "(msec)"; 221 222 minp = num2str(min, 6, 1, 0); 223 maxp = num2str(max, 6, 1, 0); 224 225 log_info(" lat %s: min=%s, max=%s, avg=%5.02f," 226 " stdev=%5.02f\n", base, minp, maxp, mean, dev); 227 228 free(minp); 229 free(maxp); 230 } 231 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { 232 double p_of_agg; 233 234 p_of_agg = mean * 100 / (double) rs->agg[ddir]; 235 log_info(" bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%," 236 " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, 237 mean, dev); 238 } 239} 240 241static void show_lat(double *io_u_lat, int nr, const char **ranges, 242 const char *msg) 243{ 244 int new_line = 1, i, line = 0; 245 246 for (i = 0; i < nr; i++) { 247 if (io_u_lat[i] <= 0.0) 248 continue; 249 if (new_line) { 250 if (line) 251 log_info("\n"); 252 log_info(" lat (%s): ", msg); 253 new_line = 0; 254 line = 0; 255 } 256 if (line) 257 log_info(", "); 258 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]); 259 line++; 260 if (line == 5) 261 new_line = 1; 262 } 263} 264 265static void show_lat_u(double *io_u_lat_u) 266{ 267 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", 268 "250=", "500=", "750=", "1000=", }; 269 270 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec"); 271} 272 273static void show_lat_m(double *io_u_lat_m) 274{ 275 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", 276 "250=", "500=", "750=", "1000=", "2000=", 277 ">=2000=", }; 278 279 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec"); 280} 281 282static void show_latencies(double *io_u_lat_u, double *io_u_lat_m) 283{ 284 show_lat_u(io_u_lat_u); 285 log_info("\n"); 286 show_lat_m(io_u_lat_m); 287 log_info("\n"); 288} 289 290static void show_thread_status(struct thread_stat *ts, 291 struct group_run_stats *rs) 292{ 293 double usr_cpu, sys_cpu; 294 unsigned long runtime; 295 double io_u_dist[FIO_IO_U_MAP_NR]; 296 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 297 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 298 299 if (!(ts->io_bytes[0] + ts->io_bytes[1]) && 300 !(ts->total_io_u[0] + ts->total_io_u[1])) 301 return; 302 303 if (!ts->error) { 304 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", 305 ts->name, ts->groupid, ts->members, 306 ts->error, (int) ts->pid); 307 } else { 308 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", 309 ts->name, ts->groupid, ts->members, 310 ts->error, ts->verror, (int) ts->pid); 311 } 312 313 if (ts->description) 314 log_info(" Description : [%s]\n", ts->description); 315 316 if (ts->io_bytes[DDIR_READ]) 317 show_ddir_status(rs, ts, DDIR_READ); 318 if (ts->io_bytes[DDIR_WRITE]) 319 show_ddir_status(rs, ts, DDIR_WRITE); 320 321 runtime = ts->total_run_time; 322 if (runtime) { 323 double runt = (double) runtime; 324 325 usr_cpu = (double) ts->usr_time * 100 / runt; 326 sys_cpu = (double) ts->sys_time * 100 / runt; 327 } else { 328 usr_cpu = 0; 329 sys_cpu = 0; 330 } 331 332 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu," 333 " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf); 334 335 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist); 336 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%," 337 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 338 io_u_dist[1], io_u_dist[2], 339 io_u_dist[3], io_u_dist[4], 340 io_u_dist[5], io_u_dist[6]); 341 342 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist); 343 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," 344 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 345 io_u_dist[1], io_u_dist[2], 346 io_u_dist[3], io_u_dist[4], 347 io_u_dist[5], io_u_dist[6]); 348 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist); 349 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," 350 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], 351 io_u_dist[1], io_u_dist[2], 352 io_u_dist[3], io_u_dist[4], 353 io_u_dist[5], io_u_dist[6]); 354 log_info(" issued r/w/d: total=%lu/%lu/%lu, short=%lu/%lu/%lu\n", 355 ts->total_io_u[0], ts->total_io_u[1], 356 ts->total_io_u[2], 357 ts->short_io_u[0], ts->short_io_u[1], 358 ts->short_io_u[2]); 359 stat_calc_lat_u(ts, io_u_lat_u); 360 stat_calc_lat_m(ts, io_u_lat_m); 361 show_latencies(io_u_lat_u, io_u_lat_m); 362 if (ts->continue_on_error) { 363 log_info(" errors : total=%lu, first_error=%d/<%s>\n", 364 ts->total_err_count, 365 ts->first_error, 366 strerror(ts->first_error)); 367 } 368} 369 370static void show_ddir_status_terse(struct thread_stat *ts, 371 struct group_run_stats *rs, int ddir) 372{ 373 unsigned long min, max; 374 unsigned long long bw; 375 double mean, dev; 376 377 assert(ddir_rw(ddir)); 378 379 bw = 0; 380 if (ts->runtime[ddir]) 381 bw = ts->io_bytes[ddir] / ts->runtime[ddir]; 382 383 log_info(";%llu;%llu;%lu", ts->io_bytes[ddir] >> 10, bw, 384 ts->runtime[ddir]); 385 386 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) 387 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 388 else 389 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 390 391 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) 392 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 393 else 394 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 395 396 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) 397 log_info(";%lu;%lu;%f;%f", min, max, mean, dev); 398 else 399 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); 400 401 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { 402 double p_of_agg; 403 404 p_of_agg = mean * 100 / (double) rs->agg[ddir]; 405 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev); 406 } else 407 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0); 408} 409 410#define FIO_TERSE_VERSION "2" 411 412static void show_thread_status_terse(struct thread_stat *ts, 413 struct group_run_stats *rs) 414{ 415 double io_u_dist[FIO_IO_U_MAP_NR]; 416 double io_u_lat_u[FIO_IO_U_LAT_U_NR]; 417 double io_u_lat_m[FIO_IO_U_LAT_M_NR]; 418 double usr_cpu, sys_cpu; 419 int i; 420 421 log_info("%s;%s;%d;%d", FIO_TERSE_VERSION, ts->name, ts->groupid, 422 ts->error); 423 424 show_ddir_status_terse(ts, rs, 0); 425 show_ddir_status_terse(ts, rs, 1); 426 427 if (ts->total_run_time) { 428 double runt = (double) ts->total_run_time; 429 430 usr_cpu = (double) ts->usr_time * 100 / runt; 431 sys_cpu = (double) ts->sys_time * 100 / runt; 432 } else { 433 usr_cpu = 0; 434 sys_cpu = 0; 435 } 436 437 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, 438 ts->minf); 439 440 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist); 441 stat_calc_lat_u(ts, io_u_lat_u); 442 stat_calc_lat_m(ts, io_u_lat_m); 443 444 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", 445 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], 446 io_u_dist[4], io_u_dist[5], io_u_dist[6]); 447 448 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) 449 log_info(";%3.2f%%", io_u_lat_u[i]); 450 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) 451 log_info(";%3.2f%%", io_u_lat_m[i]); 452 if (ts->continue_on_error) 453 log_info(";%lu;%d", ts->total_err_count, ts->first_error); 454 log_info("\n"); 455 456 if (ts->description) 457 log_info(";%s", ts->description); 458 459 log_info("\n"); 460} 461 462static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) 463{ 464 double mean, S; 465 466 dst->min_val = min(dst->min_val, src->min_val); 467 dst->max_val = max(dst->max_val, src->max_val); 468 dst->samples += src->samples; 469 470 /* 471 * Needs a new method for calculating stddev, we cannot just 472 * average them we do below for nr > 1 473 */ 474 if (nr == 1) { 475 mean = src->mean; 476 S = src->S; 477 } else { 478 mean = ((src->mean * (double) (nr - 1)) 479 + dst->mean) / ((double) nr); 480 S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr); 481 } 482 483 dst->mean = mean; 484 dst->S = S; 485} 486 487void show_run_stats(void) 488{ 489 struct group_run_stats *runstats, *rs; 490 struct thread_data *td; 491 struct thread_stat *threadstats, *ts; 492 int i, j, k, l, nr_ts, last_ts, idx; 493 int kb_base_warned = 0; 494 495 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); 496 497 for (i = 0; i < groupid + 1; i++) { 498 rs = &runstats[i]; 499 500 memset(rs, 0, sizeof(*rs)); 501 rs->min_bw[0] = rs->min_run[0] = ~0UL; 502 rs->min_bw[1] = rs->min_run[1] = ~0UL; 503 } 504 505 /* 506 * find out how many threads stats we need. if group reporting isn't 507 * enabled, it's one-per-td. 508 */ 509 nr_ts = 0; 510 last_ts = -1; 511 for_each_td(td, i) { 512 if (!td->o.group_reporting) { 513 nr_ts++; 514 continue; 515 } 516 if (last_ts == td->groupid) 517 continue; 518 519 last_ts = td->groupid; 520 nr_ts++; 521 } 522 523 threadstats = malloc(nr_ts * sizeof(struct thread_stat)); 524 525 for (i = 0; i < nr_ts; i++) { 526 ts = &threadstats[i]; 527 528 memset(ts, 0, sizeof(*ts)); 529 for (j = 0; j <= DDIR_WRITE; j++) { 530 ts->lat_stat[j].min_val = -1UL; 531 ts->clat_stat[j].min_val = -1UL; 532 ts->slat_stat[j].min_val = -1UL; 533 ts->bw_stat[j].min_val = -1UL; 534 } 535 ts->groupid = -1; 536 } 537 538 j = 0; 539 last_ts = -1; 540 idx = 0; 541 for_each_td(td, i) { 542 if (idx && (!td->o.group_reporting || 543 (td->o.group_reporting && last_ts != td->groupid))) { 544 idx = 0; 545 j++; 546 } 547 548 last_ts = td->groupid; 549 550 ts = &threadstats[j]; 551 552 idx++; 553 ts->members++; 554 555 if (ts->groupid == -1) { 556 /* 557 * These are per-group shared already 558 */ 559 ts->name = td->o.name; 560 ts->description = td->o.description; 561 ts->groupid = td->groupid; 562 563 /* 564 * first pid in group, not very useful... 565 */ 566 ts->pid = td->pid; 567 568 ts->kb_base = td->o.kb_base; 569 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) { 570 log_info("fio: kb_base differs for jobs in group, using" 571 " %u as the base\n", ts->kb_base); 572 kb_base_warned = 1; 573 } 574 575 ts->continue_on_error = td->o.continue_on_error; 576 ts->total_err_count += td->total_err_count; 577 ts->first_error = td->first_error; 578 if (!ts->error) { 579 if (!td->error && td->o.continue_on_error && 580 td->first_error) { 581 ts->error = td->first_error; 582 ts->verror = td->verror; 583 } else if (td->error) { 584 ts->error = td->error; 585 ts->verror = td->verror; 586 } 587 } 588 589 for (l = 0; l <= DDIR_WRITE; l++) { 590 sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx); 591 sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx); 592 sum_stat(&ts->lat_stat[l], &td->ts.lat_stat[l], idx); 593 sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx); 594 595 ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l]; 596 ts->io_bytes[l] += td->ts.io_bytes[l]; 597 598 if (ts->runtime[l] < td->ts.runtime[l]) 599 ts->runtime[l] = td->ts.runtime[l]; 600 } 601 602 ts->usr_time += td->ts.usr_time; 603 ts->sys_time += td->ts.sys_time; 604 ts->ctx += td->ts.ctx; 605 ts->majf += td->ts.majf; 606 ts->minf += td->ts.minf; 607 608 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 609 ts->io_u_map[k] += td->ts.io_u_map[k]; 610 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 611 ts->io_u_submit[k] += td->ts.io_u_submit[k]; 612 for (k = 0; k < FIO_IO_U_MAP_NR; k++) 613 ts->io_u_complete[k] += td->ts.io_u_complete[k]; 614 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++) 615 ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k]; 616 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++) 617 ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k]; 618 619 620 for (k = 0; k <= 2; k++) { 621 ts->total_io_u[k] += td->ts.total_io_u[k]; 622 ts->short_io_u[k] += td->ts.short_io_u[k]; 623 } 624 625 ts->total_run_time += td->ts.total_run_time; 626 ts->total_submit += td->ts.total_submit; 627 ts->total_complete += td->ts.total_complete; 628 } 629 630 for (i = 0; i < nr_ts; i++) { 631 unsigned long long bw; 632 633 ts = &threadstats[i]; 634 rs = &runstats[ts->groupid]; 635 rs->kb_base = ts->kb_base; 636 637 for (j = 0; j <= DDIR_WRITE; j++) { 638 if (!ts->runtime[j]) 639 continue; 640 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j]) 641 rs->min_run[j] = ts->runtime[j]; 642 if (ts->runtime[j] > rs->max_run[j]) 643 rs->max_run[j] = ts->runtime[j]; 644 645 bw = 0; 646 if (ts->runtime[j]) { 647 unsigned long runt; 648 649 runt = ts->runtime[j]; 650 bw = ts->io_bytes[j] / runt; 651 } 652 if (bw < rs->min_bw[j]) 653 rs->min_bw[j] = bw; 654 if (bw > rs->max_bw[j]) 655 rs->max_bw[j] = bw; 656 657 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base; 658 } 659 } 660 661 for (i = 0; i < groupid + 1; i++) { 662 unsigned long max_run[2]; 663 664 rs = &runstats[i]; 665 max_run[0] = rs->max_run[0]; 666 max_run[1] = rs->max_run[1]; 667 668 if (rs->max_run[0]) 669 rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0]; 670 if (rs->max_run[1]) 671 rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1]; 672 } 673 674 /* 675 * don't overwrite last signal output 676 */ 677 if (!terse_output) 678 log_info("\n"); 679 680 for (i = 0; i < nr_ts; i++) { 681 ts = &threadstats[i]; 682 rs = &runstats[ts->groupid]; 683 684 if (terse_output) 685 show_thread_status_terse(ts, rs); 686 else 687 show_thread_status(ts, rs); 688 } 689 690 if (!terse_output) { 691 for (i = 0; i < groupid + 1; i++) 692 show_group_stats(&runstats[i], i); 693 694 show_disk_util(); 695 } 696 697 free(runstats); 698 free(threadstats); 699} 700 701static inline void add_stat_sample(struct io_stat *is, unsigned long data) 702{ 703 double val = data; 704 double delta; 705 706 if (data > is->max_val) 707 is->max_val = data; 708 if (data < is->min_val) 709 is->min_val = data; 710 711 delta = val - is->mean; 712 if (delta) { 713 is->mean += delta / (is->samples + 1.0); 714 is->S += delta * (val - is->mean); 715 } 716 717 is->samples++; 718} 719 720static void __add_log_sample(struct io_log *iolog, unsigned long val, 721 enum fio_ddir ddir, unsigned int bs, 722 unsigned long time) 723{ 724 const int nr_samples = iolog->nr_samples; 725 726 if (iolog->nr_samples == iolog->max_samples) { 727 int new_size = sizeof(struct io_sample) * iolog->max_samples*2; 728 729 iolog->log = realloc(iolog->log, new_size); 730 iolog->max_samples <<= 1; 731 } 732 733 iolog->log[nr_samples].val = val; 734 iolog->log[nr_samples].time = time; 735 iolog->log[nr_samples].ddir = ddir; 736 iolog->log[nr_samples].bs = bs; 737 iolog->nr_samples++; 738} 739 740static void add_log_sample(struct thread_data *td, struct io_log *iolog, 741 unsigned long val, enum fio_ddir ddir, 742 unsigned int bs) 743{ 744 if (!ddir_rw(ddir)) 745 return; 746 747 __add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch)); 748} 749 750void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs) 751{ 752 struct io_log *iolog; 753 754 if (!ddir_rw(ddir)) 755 return; 756 757 iolog = agg_io_log[ddir]; 758 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis()); 759} 760 761void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, 762 unsigned long usec, unsigned int bs) 763{ 764 struct thread_stat *ts = &td->ts; 765 766 if (!ddir_rw(ddir)) 767 return; 768 769 add_stat_sample(&ts->clat_stat[ddir], usec); 770 771 if (ts->clat_log) 772 add_log_sample(td, ts->clat_log, usec, ddir, bs); 773} 774 775void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, 776 unsigned long usec, unsigned int bs) 777{ 778 struct thread_stat *ts = &td->ts; 779 780 if (!ddir_rw(ddir)) 781 return; 782 783 add_stat_sample(&ts->slat_stat[ddir], usec); 784 785 if (ts->slat_log) 786 add_log_sample(td, ts->slat_log, usec, ddir, bs); 787} 788 789void add_lat_sample(struct thread_data *td, enum fio_ddir ddir, 790 unsigned long usec, unsigned int bs) 791{ 792 struct thread_stat *ts = &td->ts; 793 794 if (!ddir_rw(ddir)) 795 return; 796 797 add_stat_sample(&ts->lat_stat[ddir], usec); 798 799 if (ts->lat_log) 800 add_log_sample(td, ts->lat_log, usec, ddir, bs); 801} 802 803void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs, 804 struct timeval *t) 805{ 806 struct thread_stat *ts = &td->ts; 807 unsigned long spent, rate; 808 809 if (!ddir_rw(ddir)) 810 return; 811 812 spent = mtime_since(&ts->stat_sample_time[ddir], t); 813 if (spent < td->o.bw_avg_time) 814 return; 815 816 rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) * 817 1000 / spent / 1024; 818 add_stat_sample(&ts->bw_stat[ddir], rate); 819 820 if (ts->bw_log) 821 add_log_sample(td, ts->bw_log, rate, ddir, bs); 822 823 fio_gettime(&ts->stat_sample_time[ddir], NULL); 824 ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; 825} 826