stat.c

   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 #include "lib/pow2.h"
  17
  18 struct fio_mutex *stat_mutex;
  19
  20 void update_rusage_stat(struct thread_data *td)
  21 {
  22         struct thread_stat *ts = &td->ts;
  23
  24         fio_getrusage(&td->ru_end);
  25         ts->usr_time += mtime_since(&td->ru_start.ru_utime,
  26                                         &td->ru_end.ru_utime);
  27         ts->sys_time += mtime_since(&td->ru_start.ru_stime,
  28                                         &td->ru_end.ru_stime);
  29         ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
  30                         - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
  31         ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
  32         ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
  33
  34         memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
  35 }
  36
  37 /*
  38  * Given a latency, return the index of the corresponding bucket in
  39  * the structure tracking percentiles.
  40  *
  41  * (1) find the group (and error bits) that the value (latency)
  42  * belongs to by looking at its MSB. (2) find the bucket number in the
  43  * group by looking at the index bits.
  44  *
  45  */
  46 static unsigned int plat_val_to_idx(unsigned int val)
  47 {
  48         unsigned int msb, error_bits, base, offset, idx;
  49
  50         /* Find MSB starting from bit 0 */
  51         if (val == 0)
  52                 msb = 0;
  53         else
  54                 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
  55
  56         /*
  57          * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
  58          * all bits of the sample as index
  59          */
  60         if (msb <= FIO_IO_U_PLAT_BITS)
  61                 return val;
  62
  63         /* Compute the number of error bits to discard*/
  64         error_bits = msb - FIO_IO_U_PLAT_BITS;
  65
  66         /* Compute the number of buckets before the group */
  67         base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
  68
  69         /*
  70          * Discard the error bits and apply the mask to find the
  71          * index for the buckets in the group
  72          */
  73         offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
  74
  75         /* Make sure the index does not exceed (array size - 1) */
  76         idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
  77                 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
  78
  79         return idx;
  80 }
  81
  82 /*
  83  * Convert the given index of the bucket array to the value
  84  * represented by the bucket
  85  */
  86 static unsigned int plat_idx_to_val(unsigned int idx)
  87 {
  88         unsigned int error_bits, k, base;
  89
  90         assert(idx < FIO_IO_U_PLAT_NR);
  91
  92         /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
  93          * all bits of the sample as index */
  94         if (idx < (FIO_IO_U_PLAT_VAL << 1))
  95                 return idx;
  96
  97         /* Find the group and compute the minimum value of that group */
  98         error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
  99         base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
 100
 101         /* Find its bucket number of the group */
 102         k = idx % FIO_IO_U_PLAT_VAL;
 103
 104         /* Return the mean of the range of the bucket */
 105         return base + ((k + 0.5) * (1 << error_bits));
 106 }
 107
 108 static int double_cmp(const void *a, const void *b)
 109 {
 110         const fio_fp64_t fa = *(const fio_fp64_t *) a;
 111         const fio_fp64_t fb = *(const fio_fp64_t *) b;
 112         int cmp = 0;
 113
 114         if (fa.u.f > fb.u.f)
 115                 cmp = 1;
 116         else if (fa.u.f < fb.u.f)
 117                 cmp = -1;
 118
 119         return cmp;
 120 }
 121
 122 unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
 123                                    fio_fp64_t *plist, unsigned int **output,
 124                                    unsigned int *maxv, unsigned int *minv)
 125 {
 126         unsigned long sum = 0;
 127         unsigned int len, i, j = 0;
 128         unsigned int oval_len = 0;
 129         unsigned int *ovals = NULL;
 130         int is_last;
 131
 132         *minv = -1U;
 133         *maxv = 0;
 134
 135         len = 0;
 136         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 137                 len++;
 138
 139         if (!len)
 140                 return 0;
 141
 142         /*
 143          * Sort the percentile list. Note that it may already be sorted if
 144          * we are using the default values, but since it's a short list this
 145          * isn't a worry. Also note that this does not work for NaN values.
 146          */
 147         if (len > 1)
 148                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 149
 150         /*
 151          * Calculate bucket values, note down max and min values
 152          */
 153         is_last = 0;
 154         for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
 155                 sum += io_u_plat[i];
 156                 while (sum >= (plist[j].u.f / 100.0 * nr)) {
 157                         assert(plist[j].u.f <= 100.0);
 158
 159                         if (j == oval_len) {
 160                                 oval_len += 100;
 161                                 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
 162                         }
 163
 164                         ovals[j] = plat_idx_to_val(i);
 165                         if (ovals[j] < *minv)
 166                                 *minv = ovals[j];
 167                         if (ovals[j] > *maxv)
 168                                 *maxv = ovals[j];
 169
 170                         is_last = (j == len - 1);
 171                         if (is_last)
 172                                 break;
 173
 174                         j++;
 175                 }
 176         }
 177
 178         *output = ovals;
 179         return len;
 180 }
 181
 182 /*
 183  * Find and display the p-th percentile of clat
 184  */
 185 static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
 186                                   fio_fp64_t *plist, unsigned int precision)
 187 {
 188         unsigned int len, j = 0, minv, maxv;
 189         unsigned int *ovals;
 190         int is_last, per_line, scale_down;
 191         char fmt[32];
 192
 193         len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
 194         if (!len)
 195                 goto out;
 196
 197         /*
 198          * We default to usecs, but if the value range is such that we
 199          * should scale down to msecs, do that.
 200          */
 201         if (minv > 2000 && maxv > 99999) {
 202                 scale_down = 1;
 203                 log_info("    clat percentiles (msec):\n     |");
 204         } else {
 205                 scale_down = 0;
 206                 log_info("    clat percentiles (usec):\n     |");
 207         }
 208
 209         snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
 210         per_line = (80 - 7) / (precision + 14);
 211
 212         for (j = 0; j < len; j++) {
 213                 char fbuf[16], *ptr = fbuf;
 214
 215                 /* for formatting */
 216                 if (j != 0 && (j % per_line) == 0)
 217                         log_info("     |");
 218
 219                 /* end of the list */
 220                 is_last = (j == len - 1);
 221
 222                 if (plist[j].u.f < 10.0)
 223                         ptr += sprintf(fbuf, " ");
 224
 225                 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
 226
 227                 if (scale_down)
 228                         ovals[j] = (ovals[j] + 999) / 1000;
 229
 230                 log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
 231
 232                 if (is_last)
 233                         break;
 234
 235                 if ((j % per_line) == per_line - 1)     /* for formatting */
 236                         log_info("\n");
 237         }
 238
 239 out:
 240         if (ovals)
 241                 free(ovals);
 242 }
 243
 244 int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
 245              double *mean, double *dev)
 246 {
 247         double n = (double) is->samples;
 248
 249         if (n == 0)
 250                 return 0;
 251
 252         *min = is->min_val;
 253         *max = is->max_val;
 254         *mean = is->mean.u.f;
 255
 256         if (n > 1.0)
 257                 *dev = sqrt(is->S.u.f / (n - 1.0));
 258         else
 259                 *dev = 0;
 260
 261         return 1;
 262 }
 263
 264 void show_group_stats(struct group_run_stats *rs)
 265 {
 266         char *p1, *p2, *p3, *p4;
 267         const char *str[] = { "   READ", "  WRITE" , "   TRIM"};
 268         int i;
 269
 270         log_info("\nRun status group %d (all jobs):\n", rs->groupid);
 271
 272         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 273                 const int i2p = is_power_of_2(rs->kb_base);
 274
 275                 if (!rs->max_run[i])
 276                         continue;
 277
 278                 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
 279                 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
 280                 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
 281                 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
 282
 283                 log_info("%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
 284                          " mint=%llumsec, maxt=%llumsec\n",
 285                                 rs->unified_rw_rep ? "  MIXED" : str[i],
 286                                 p1, p2, p3, p4,
 287                                 (unsigned long long) rs->min_run[i],
 288                                 (unsigned long long) rs->max_run[i]);
 289
 290                 free(p1);
 291                 free(p2);
 292                 free(p3);
 293                 free(p4);
 294         }
 295 }
 296
 297 void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
 298 {
 299         int i;
 300
 301         /*
 302          * Do depth distribution calculations
 303          */
 304         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
 305                 if (total) {
 306                         io_u_dist[i] = (double) map[i] / (double) total;
 307                         io_u_dist[i] *= 100.0;
 308                         if (io_u_dist[i] < 0.1 && map[i])
 309                                 io_u_dist[i] = 0.1;
 310                 } else
 311                         io_u_dist[i] = 0.0;
 312         }
 313 }
 314
 315 static void stat_calc_lat(struct thread_stat *ts, double *dst,
 316                           unsigned int *src, int nr)
 317 {
 318         unsigned long total = ddir_rw_sum(ts->total_io_u);
 319         int i;
 320
 321         /*
 322          * Do latency distribution calculations
 323          */
 324         for (i = 0; i < nr; i++) {
 325                 if (total) {
 326                         dst[i] = (double) src[i] / (double) total;
 327                         dst[i] *= 100.0;
 328                         if (dst[i] < 0.01 && src[i])
 329                                 dst[i] = 0.01;
 330                 } else
 331                         dst[i] = 0.0;
 332         }
 333 }
 334
 335 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
 336 {
 337         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
 338 }
 339
 340 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
 341 {
 342         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
 343 }
 344
 345 static void display_lat(const char *name, unsigned long min, unsigned long max,
 346                         double mean, double dev)
 347 {
 348         const char *base = "(usec)";
 349         char *minp, *maxp;
 350
 351         if (!usec_to_msec(&min, &max, &mean, &dev))
 352                 base = "(msec)";
 353
 354         minp = num2str(min, 6, 1, 0, 0);
 355         maxp = num2str(max, 6, 1, 0, 0);
 356
 357         log_info("    %s %s: min=%s, max=%s, avg=%5.02f,"
 358                  " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
 359
 360         free(minp);
 361         free(maxp);
 362 }
 363
 364 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 365                              int ddir)
 366 {
 367         const char *str[] = { "read ", "write", "trim" };
 368         unsigned long min, max, runt;
 369         unsigned long long bw, iops;
 370         double mean, dev;
 371         char *io_p, *bw_p, *iops_p;
 372         int i2p;
 373
 374         assert(ddir_rw(ddir));
 375
 376         if (!ts->runtime[ddir])
 377                 return;
 378
 379         i2p = is_power_of_2(rs->kb_base);
 380         runt = ts->runtime[ddir];
 381
 382         bw = (1000 * ts->io_bytes[ddir]) / runt;
 383         io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
 384         bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
 385
 386         iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
 387         iops_p = num2str(iops, 6, 1, 0, 0);
 388
 389         log_info("  %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
 390                                 rs->unified_rw_rep ? "mixed" : str[ddir],
 391                                 io_p, bw_p, iops_p,
 392                                 (unsigned long long) ts->runtime[ddir]);
 393
 394         free(io_p);
 395         free(bw_p);
 396         free(iops_p);
 397
 398         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 399                 display_lat("slat", min, max, mean, dev);
 400         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 401                 display_lat("clat", min, max, mean, dev);
 402         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 403                 display_lat(" lat", min, max, mean, dev);
 404
 405         if (ts->clat_percentiles) {
 406                 show_clat_percentiles(ts->io_u_plat[ddir],
 407                                         ts->clat_stat[ddir].samples,
 408                                         ts->percentile_list,
 409                                         ts->percentile_precision);
 410         }
 411         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 412                 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
 413                 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
 414
 415                 if (rs->unit_base == 1) {
 416                         min *= 8.0;
 417                         max *= 8.0;
 418                         mean *= 8.0;
 419                         dev *= 8.0;
 420                 }
 421
 422                 if (rs->agg[ddir]) {
 423                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 424                         if (p_of_agg > 100.0)
 425                                 p_of_agg = 100.0;
 426                 }
 427
 428                 if (mean > fkb_base * fkb_base) {
 429                         min /= fkb_base;
 430                         max /= fkb_base;
 431                         mean /= fkb_base;
 432                         dev /= fkb_base;
 433                         bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
 434                 }
 435
 436                 log_info("    bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
 437                          " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
 438                                                         p_of_agg, mean, dev);
 439         }
 440 }
 441
 442 static int show_lat(double *io_u_lat, int nr, const char **ranges,
 443                     const char *msg)
 444 {
 445         int new_line = 1, i, line = 0, shown = 0;
 446
 447         for (i = 0; i < nr; i++) {
 448                 if (io_u_lat[i] <= 0.0)
 449                         continue;
 450                 shown = 1;
 451                 if (new_line) {
 452                         if (line)
 453                                 log_info("\n");
 454                         log_info("    lat (%s) : ", msg);
 455                         new_line = 0;
 456                         line = 0;
 457                 }
 458                 if (line)
 459                         log_info(", ");
 460                 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
 461                 line++;
 462                 if (line == 5)
 463                         new_line = 1;
 464         }
 465
 466         if (shown)
 467                 log_info("\n");
 468
 469         return shown;
 470 }
 471
 472 static void show_lat_u(double *io_u_lat_u)
 473 {
 474         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 475                                  "250=", "500=", "750=", "1000=", };
 476
 477         show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
 478 }
 479
 480 static void show_lat_m(double *io_u_lat_m)
 481 {
 482         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 483                                  "250=", "500=", "750=", "1000=", "2000=",
 484                                  ">=2000=", };
 485
 486         show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
 487 }
 488
 489 static void show_latencies(struct thread_stat *ts)
 490 {
 491         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 492         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
 493
 494         stat_calc_lat_u(ts, io_u_lat_u);
 495         stat_calc_lat_m(ts, io_u_lat_m);
 496
 497         show_lat_u(io_u_lat_u);
 498         show_lat_m(io_u_lat_m);
 499 }
 500
 501 static int block_state_category(int block_state)
 502 {
 503         switch (block_state) {
 504         case BLOCK_STATE_UNINIT:
 505                 return 0;
 506         case BLOCK_STATE_TRIMMED:
 507         case BLOCK_STATE_WRITTEN:
 508                 return 1;
 509         case BLOCK_STATE_WRITE_FAILURE:
 510         case BLOCK_STATE_TRIM_FAILURE:
 511                 return 2;
 512         default:
 513                 /* Silence compile warning on some BSDs and have a return */
 514                 assert(0);
 515                 return -1;
 516         }
 517 }
 518
 519 static int compare_block_infos(const void *bs1, const void *bs2)
 520 {
 521         uint32_t block1 = *(uint32_t *)bs1;
 522         uint32_t block2 = *(uint32_t *)bs2;
 523         int state1 = BLOCK_INFO_STATE(block1);
 524         int state2 = BLOCK_INFO_STATE(block2);
 525         int bscat1 = block_state_category(state1);
 526         int bscat2 = block_state_category(state2);
 527         int cycles1 = BLOCK_INFO_TRIMS(block1);
 528         int cycles2 = BLOCK_INFO_TRIMS(block2);
 529
 530         if (bscat1 < bscat2)
 531                 return -1;
 532         if (bscat1 > bscat2)
 533                 return 1;
 534
 535         if (cycles1 < cycles2)
 536                 return -1;
 537         if (cycles1 > cycles2)
 538                 return 1;
 539
 540         if (state1 < state2)
 541                 return -1;
 542         if (state1 > state2)
 543                 return 1;
 544
 545         assert(block1 == block2);
 546         return 0;
 547 }
 548
 549 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
 550                                   fio_fp64_t *plist, unsigned int **percentiles,
 551                                   unsigned int *types)
 552 {
 553         int len = 0;
 554         int i, nr_uninit;
 555
 556         qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
 557
 558         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 559                 len++;
 560
 561         if (!len)
 562                 return 0;
 563
 564         /*
 565          * Sort the percentile list. Note that it may already be sorted if
 566          * we are using the default values, but since it's a short list this
 567          * isn't a worry. Also note that this does not work for NaN values.
 568          */
 569         if (len > 1)
 570                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 571
 572         nr_uninit = 0;
 573         /* Start only after the uninit entries end */
 574         for (nr_uninit = 0;
 575              nr_uninit < nr_block_infos
 576                 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
 577              nr_uninit ++)
 578                 ;
 579
 580         if (nr_uninit == nr_block_infos)
 581                 return 0;
 582
 583         *percentiles = calloc(len, sizeof(**percentiles));
 584
 585         for (i = 0; i < len; i++) {
 586                 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
 587                                 + nr_uninit;
 588                 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
 589         }
 590
 591         memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
 592         for (i = 0; i < nr_block_infos; i++)
 593                 types[BLOCK_INFO_STATE(block_infos[i])]++;
 594
 595         return len;
 596 }
 597
 598 static const char *block_state_names[] = {
 599         [BLOCK_STATE_UNINIT] = "unwritten",
 600         [BLOCK_STATE_TRIMMED] = "trimmed",
 601         [BLOCK_STATE_WRITTEN] = "written",
 602         [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
 603         [BLOCK_STATE_WRITE_FAILURE] = "write failure",
 604 };
 605
 606 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
 607                              fio_fp64_t *plist)
 608 {
 609         int len, pos, i;
 610         unsigned int *percentiles = NULL;
 611         unsigned int block_state_counts[BLOCK_STATE_COUNT];
 612
 613         len = calc_block_percentiles(nr_block_infos, block_infos, plist,
 614                                      &percentiles, block_state_counts);
 615
 616         log_info("  block lifetime percentiles :\n   |");
 617         pos = 0;
 618         for (i = 0; i < len; i++) {
 619                 uint32_t block_info = percentiles[i];
 620 #define LINE_LENGTH     75
 621                 char str[LINE_LENGTH];
 622                 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
 623                                      plist[i].u.f, block_info,
 624                                      i == len - 1 ? '\n' : ',');
 625                 assert(strln < LINE_LENGTH);
 626                 if (pos + strln > LINE_LENGTH) {
 627                         pos = 0;
 628                         log_info("\n   |");
 629                 }
 630                 log_info("%s", str);
 631                 pos += strln;
 632 #undef LINE_LENGTH
 633         }
 634         if (percentiles)
 635                 free(percentiles);
 636
 637         log_info("        states               :");
 638         for (i = 0; i < BLOCK_STATE_COUNT; i++)
 639                 log_info(" %s=%u%c",
 640                          block_state_names[i], block_state_counts[i],
 641                          i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
 642 }
 643
 644 static void show_thread_status_normal(struct thread_stat *ts,
 645                                       struct group_run_stats *rs)
 646 {
 647         double usr_cpu, sys_cpu;
 648         unsigned long runtime;
 649         double io_u_dist[FIO_IO_U_MAP_NR];
 650         time_t time_p;
 651         char time_buf[32];
 652
 653         if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
 654                 return;
 655
 656         time(&time_p);
 657         os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
 658
 659         if (!ts->error) {
 660                 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
 661                                         ts->name, ts->groupid, ts->members,
 662                                         ts->error, (int) ts->pid, time_buf);
 663         } else {
 664                 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
 665                                         ts->name, ts->groupid, ts->members,
 666                                         ts->error, ts->verror, (int) ts->pid,
 667                                         time_buf);
 668         }
 669
 670         if (strlen(ts->description))
 671                 log_info("  Description  : [%s]\n", ts->description);
 672
 673         if (ts->io_bytes[DDIR_READ])
 674                 show_ddir_status(rs, ts, DDIR_READ);
 675         if (ts->io_bytes[DDIR_WRITE])
 676                 show_ddir_status(rs, ts, DDIR_WRITE);
 677         if (ts->io_bytes[DDIR_TRIM])
 678                 show_ddir_status(rs, ts, DDIR_TRIM);
 679
 680         show_latencies(ts);
 681
 682         runtime = ts->total_run_time;
 683         if (runtime) {
 684                 double runt = (double) runtime;
 685
 686                 usr_cpu = (double) ts->usr_time * 100 / runt;
 687                 sys_cpu = (double) ts->sys_time * 100 / runt;
 688         } else {
 689                 usr_cpu = 0;
 690                 sys_cpu = 0;
 691         }
 692
 693         log_info("  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
 694                  " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
 695                         (unsigned long long) ts->ctx,
 696                         (unsigned long long) ts->majf,
 697                         (unsigned long long) ts->minf);
 698
 699         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
 700         log_info("  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
 701                  " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 702                                         io_u_dist[1], io_u_dist[2],
 703                                         io_u_dist[3], io_u_dist[4],
 704                                         io_u_dist[5], io_u_dist[6]);
 705
 706         stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
 707         log_info("     submit    : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 708                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 709                                         io_u_dist[1], io_u_dist[2],
 710                                         io_u_dist[3], io_u_dist[4],
 711                                         io_u_dist[5], io_u_dist[6]);
 712         stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
 713         log_info("     complete  : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 714                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 715                                         io_u_dist[1], io_u_dist[2],
 716                                         io_u_dist[3], io_u_dist[4],
 717                                         io_u_dist[5], io_u_dist[6]);
 718         log_info("     issued    : total=r=%llu/w=%llu/d=%llu,"
 719                                  " short=r=%llu/w=%llu/d=%llu,"
 720                                  " drop=r=%llu/w=%llu/d=%llu\n",
 721                                         (unsigned long long) ts->total_io_u[0],
 722                                         (unsigned long long) ts->total_io_u[1],
 723                                         (unsigned long long) ts->total_io_u[2],
 724                                         (unsigned long long) ts->short_io_u[0],
 725                                         (unsigned long long) ts->short_io_u[1],
 726                                         (unsigned long long) ts->short_io_u[2],
 727                                         (unsigned long long) ts->drop_io_u[0],
 728                                         (unsigned long long) ts->drop_io_u[1],
 729                                         (unsigned long long) ts->drop_io_u[2]);
 730         if (ts->continue_on_error) {
 731                 log_info("     errors    : total=%llu, first_error=%d/<%s>\n",
 732                                         (unsigned long long)ts->total_err_count,
 733                                         ts->first_error,
 734                                         strerror(ts->first_error));
 735         }
 736         if (ts->latency_depth) {
 737                 log_info("     latency   : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
 738                                         (unsigned long long)ts->latency_target,
 739                                         (unsigned long long)ts->latency_window,
 740                                         ts->latency_percentile.u.f,
 741                                         ts->latency_depth);
 742         }
 743
 744         if (ts->nr_block_infos)
 745                 show_block_infos(ts->nr_block_infos, ts->block_infos,
 746                                   ts->percentile_list);
 747 }
 748
 749 static void show_ddir_status_terse(struct thread_stat *ts,
 750                                    struct group_run_stats *rs, int ddir)
 751 {
 752         unsigned long min, max;
 753         unsigned long long bw, iops;
 754         unsigned int *ovals = NULL;
 755         double mean, dev;
 756         unsigned int len, minv, maxv;
 757         int i;
 758
 759         assert(ddir_rw(ddir));
 760
 761         iops = bw = 0;
 762         if (ts->runtime[ddir]) {
 763                 uint64_t runt = ts->runtime[ddir];
 764
 765                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 766                 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
 767         }
 768
 769         log_info(";%llu;%llu;%llu;%llu",
 770                 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
 771                                         (unsigned long long) ts->runtime[ddir]);
 772
 773         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 774                 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
 775         else
 776                 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 777
 778         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 779                 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
 780         else
 781                 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 782
 783         if (ts->clat_percentiles) {
 784                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 785                                         ts->clat_stat[ddir].samples,
 786                                         ts->percentile_list, &ovals, &maxv,
 787                                         &minv);
 788         } else
 789                 len = 0;
 790
 791         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 792                 if (i >= len) {
 793                         log_info(";0%%=0");
 794                         continue;
 795                 }
 796                 log_info(";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
 797         }
 798
 799         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 800                 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
 801         else
 802                 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 803
 804         if (ovals)
 805                 free(ovals);
 806
 807         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 808                 double p_of_agg = 100.0;
 809
 810                 if (rs->agg[ddir]) {
 811                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 812                         if (p_of_agg > 100.0)
 813                                 p_of_agg = 100.0;
 814                 }
 815
 816                 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
 817         } else
 818                 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 819 }
 820
 821 static void add_ddir_status_json(struct thread_stat *ts,
 822                 struct group_run_stats *rs, int ddir, struct json_object *parent)
 823 {
 824         unsigned long min, max;
 825         unsigned long long bw;
 826         unsigned int *ovals = NULL;
 827         double mean, dev, iops;
 828         unsigned int len, minv, maxv;
 829         int i;
 830         const char *ddirname[] = {"read", "write", "trim"};
 831         struct json_object *dir_object, *tmp_object, *percentile_object;
 832         char buf[120];
 833         double p_of_agg = 100.0;
 834
 835         assert(ddir_rw(ddir));
 836
 837         if (ts->unified_rw_rep && ddir != DDIR_READ)
 838                 return;
 839
 840         dir_object = json_create_object();
 841         json_object_add_value_object(parent,
 842                 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
 843
 844         bw = 0;
 845         iops = 0.0;
 846         if (ts->runtime[ddir]) {
 847                 uint64_t runt = ts->runtime[ddir];
 848
 849                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 850                 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
 851         }
 852
 853         json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
 854         json_object_add_value_int(dir_object, "bw", bw);
 855         json_object_add_value_float(dir_object, "iops", iops);
 856         json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
 857         json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
 858         json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
 859         json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
 860
 861         if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
 862                 min = max = 0;
 863                 mean = dev = 0.0;
 864         }
 865         tmp_object = json_create_object();
 866         json_object_add_value_object(dir_object, "slat", tmp_object);
 867         json_object_add_value_int(tmp_object, "min", min);
 868         json_object_add_value_int(tmp_object, "max", max);
 869         json_object_add_value_float(tmp_object, "mean", mean);
 870         json_object_add_value_float(tmp_object, "stddev", dev);
 871
 872         if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
 873                 min = max = 0;
 874                 mean = dev = 0.0;
 875         }
 876         tmp_object = json_create_object();
 877         json_object_add_value_object(dir_object, "clat", tmp_object);
 878         json_object_add_value_int(tmp_object, "min", min);
 879         json_object_add_value_int(tmp_object, "max", max);
 880         json_object_add_value_float(tmp_object, "mean", mean);
 881         json_object_add_value_float(tmp_object, "stddev", dev);
 882
 883         if (ts->clat_percentiles) {
 884                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 885                                         ts->clat_stat[ddir].samples,
 886                                         ts->percentile_list, &ovals, &maxv,
 887                                         &minv);
 888         } else
 889                 len = 0;
 890
 891         percentile_object = json_create_object();
 892         json_object_add_value_object(tmp_object, "percentile", percentile_object);
 893         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 894                 if (i >= len) {
 895                         json_object_add_value_int(percentile_object, "0.00", 0);
 896                         continue;
 897                 }
 898                 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
 899                 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
 900         }
 901
 902         if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
 903                 min = max = 0;
 904                 mean = dev = 0.0;
 905         }
 906         tmp_object = json_create_object();
 907         json_object_add_value_object(dir_object, "lat", tmp_object);
 908         json_object_add_value_int(tmp_object, "min", min);
 909         json_object_add_value_int(tmp_object, "max", max);
 910         json_object_add_value_float(tmp_object, "mean", mean);
 911         json_object_add_value_float(tmp_object, "stddev", dev);
 912         if (ovals)
 913                 free(ovals);
 914
 915         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 916                 if (rs->agg[ddir]) {
 917                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 918                         if (p_of_agg > 100.0)
 919                                 p_of_agg = 100.0;
 920                 }
 921         } else {
 922                 min = max = 0;
 923                 p_of_agg = mean = dev = 0.0;
 924         }
 925         json_object_add_value_int(dir_object, "bw_min", min);
 926         json_object_add_value_int(dir_object, "bw_max", max);
 927         json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
 928         json_object_add_value_float(dir_object, "bw_mean", mean);
 929         json_object_add_value_float(dir_object, "bw_dev", dev);
 930 }
 931
 932 static void show_thread_status_terse_v2(struct thread_stat *ts,
 933                                         struct group_run_stats *rs)
 934 {
 935         double io_u_dist[FIO_IO_U_MAP_NR];
 936         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 937         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
 938         double usr_cpu, sys_cpu;
 939         int i;
 940
 941         /* General Info */
 942         log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error);
 943         /* Log Read Status */
 944         show_ddir_status_terse(ts, rs, DDIR_READ);
 945         /* Log Write Status */
 946         show_ddir_status_terse(ts, rs, DDIR_WRITE);
 947         /* Log Trim Status */
 948         show_ddir_status_terse(ts, rs, DDIR_TRIM);
 949
 950         /* CPU Usage */
 951         if (ts->total_run_time) {
 952                 double runt = (double) ts->total_run_time;
 953
 954                 usr_cpu = (double) ts->usr_time * 100 / runt;
 955                 sys_cpu = (double) ts->sys_time * 100 / runt;
 956         } else {
 957                 usr_cpu = 0;
 958                 sys_cpu = 0;
 959         }
 960
 961         log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
 962                                                 (unsigned long long) ts->ctx,
 963                                                 (unsigned long long) ts->majf,
 964                                                 (unsigned long long) ts->minf);
 965
 966         /* Calc % distribution of IO depths, usecond, msecond latency */
 967         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
 968         stat_calc_lat_u(ts, io_u_lat_u);
 969         stat_calc_lat_m(ts, io_u_lat_m);
 970
 971         /* Only show fixed 7 I/O depth levels*/
 972         log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
 973                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
 974                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
 975
 976         /* Microsecond latency */
 977         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
 978                 log_info(";%3.2f%%", io_u_lat_u[i]);
 979         /* Millisecond latency */
 980         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
 981                 log_info(";%3.2f%%", io_u_lat_m[i]);
 982         /* Additional output if continue_on_error set - default off*/
 983         if (ts->continue_on_error)
 984                 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
 985         log_info("\n");
 986
 987         /* Additional output if description is set */
 988         if (strlen(ts->description))
 989                 log_info(";%s", ts->description);
 990
 991         log_info("\n");
 992 }
 993
 994 static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
 995                                            struct group_run_stats *rs, int ver)
 996 {
 997         double io_u_dist[FIO_IO_U_MAP_NR];
 998         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 999         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1000         double usr_cpu, sys_cpu;
1001         int i;
1002
1003         /* General Info */
1004         log_info("%d;%s;%s;%d;%d", ver, fio_version_string,
1005                                         ts->name, ts->groupid, ts->error);
1006         /* Log Read Status */
1007         show_ddir_status_terse(ts, rs, DDIR_READ);
1008         /* Log Write Status */
1009         show_ddir_status_terse(ts, rs, DDIR_WRITE);
1010         /* Log Trim Status */
1011         if (ver == 4)
1012                 show_ddir_status_terse(ts, rs, DDIR_TRIM);
1013
1014         /* CPU Usage */
1015         if (ts->total_run_time) {
1016                 double runt = (double) ts->total_run_time;
1017
1018                 usr_cpu = (double) ts->usr_time * 100 / runt;
1019                 sys_cpu = (double) ts->sys_time * 100 / runt;
1020         } else {
1021                 usr_cpu = 0;
1022                 sys_cpu = 0;
1023         }
1024
1025         log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1026                                                 (unsigned long long) ts->ctx,
1027                                                 (unsigned long long) ts->majf,
1028                                                 (unsigned long long) ts->minf);
1029
1030         /* Calc % distribution of IO depths, usecond, msecond latency */
1031         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1032         stat_calc_lat_u(ts, io_u_lat_u);
1033         stat_calc_lat_m(ts, io_u_lat_m);
1034
1035         /* Only show fixed 7 I/O depth levels*/
1036         log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1037                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1038                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1039
1040         /* Microsecond latency */
1041         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1042                 log_info(";%3.2f%%", io_u_lat_u[i]);
1043         /* Millisecond latency */
1044         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1045                 log_info(";%3.2f%%", io_u_lat_m[i]);
1046
1047         /* disk util stats, if any */
1048         show_disk_util(1, NULL);
1049
1050         /* Additional output if continue_on_error set - default off*/
1051         if (ts->continue_on_error)
1052                 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1053
1054         /* Additional output if description is set */
1055         if (strlen(ts->description))
1056                 log_info(";%s", ts->description);
1057
1058         log_info("\n");
1059 }
1060
1061 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1062                                     struct group_run_stats *rs)
1063 {
1064         struct json_object *root, *tmp;
1065         struct jobs_eta *je;
1066         double io_u_dist[FIO_IO_U_MAP_NR];
1067         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1068         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1069         double usr_cpu, sys_cpu;
1070         int i;
1071         size_t size;
1072
1073
1074         root = json_create_object();
1075         json_object_add_value_string(root, "jobname", ts->name);
1076         json_object_add_value_int(root, "groupid", ts->groupid);
1077         json_object_add_value_int(root, "error", ts->error);
1078
1079         /* ETA Info */
1080         je = get_jobs_eta(1, &size);
1081         json_object_add_value_int(root, "eta", je->eta_sec);
1082         json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1083
1084
1085         add_ddir_status_json(ts, rs, DDIR_READ, root);
1086         add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1087         add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1088
1089         /* CPU Usage */
1090         if (ts->total_run_time) {
1091                 double runt = (double) ts->total_run_time;
1092
1093                 usr_cpu = (double) ts->usr_time * 100 / runt;
1094                 sys_cpu = (double) ts->sys_time * 100 / runt;
1095         } else {
1096                 usr_cpu = 0;
1097                 sys_cpu = 0;
1098         }
1099         json_object_add_value_float(root, "usr_cpu", usr_cpu);
1100         json_object_add_value_float(root, "sys_cpu", sys_cpu);
1101         json_object_add_value_int(root, "ctx", ts->ctx);
1102         json_object_add_value_int(root, "majf", ts->majf);
1103         json_object_add_value_int(root, "minf", ts->minf);
1104
1105
1106         /* Calc % distribution of IO depths, usecond, msecond latency */
1107         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1108         stat_calc_lat_u(ts, io_u_lat_u);
1109         stat_calc_lat_m(ts, io_u_lat_m);
1110
1111         tmp = json_create_object();
1112         json_object_add_value_object(root, "iodepth_level", tmp);
1113         /* Only show fixed 7 I/O depth levels*/
1114         for (i = 0; i < 7; i++) {
1115                 char name[20];
1116                 if (i < 6)
1117                         snprintf(name, 20, "%d", 1 << i);
1118                 else
1119                         snprintf(name, 20, ">=%d", 1 << i);
1120                 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1121         }
1122
1123         tmp = json_create_object();
1124         json_object_add_value_object(root, "latency_us", tmp);
1125         /* Microsecond latency */
1126         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1127                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1128                                  "250", "500", "750", "1000", };
1129                 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1130         }
1131         /* Millisecond latency */
1132         tmp = json_create_object();
1133         json_object_add_value_object(root, "latency_ms", tmp);
1134         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1135                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1136                                  "250", "500", "750", "1000", "2000",
1137                                  ">=2000", };
1138                 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1139         }
1140
1141         /* Additional output if continue_on_error set - default off*/
1142         if (ts->continue_on_error) {
1143                 json_object_add_value_int(root, "total_err", ts->total_err_count);
1144                 json_object_add_value_int(root, "first_error", ts->first_error);
1145         }
1146
1147         if (ts->latency_depth) {
1148                 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1149                 json_object_add_value_int(root, "latency_target", ts->latency_target);
1150                 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1151                 json_object_add_value_int(root, "latency_window", ts->latency_window);
1152         }
1153
1154         /* Additional output if description is set */
1155         if (strlen(ts->description))
1156                 json_object_add_value_string(root, "desc", ts->description);
1157
1158         if (ts->nr_block_infos) {
1159                 /* Block error histogram and types */
1160                 int len;
1161                 unsigned int *percentiles = NULL;
1162                 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1163
1164                 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1165                                              ts->percentile_list,
1166                                              &percentiles, block_state_counts);
1167
1168                 if (len) {
1169                         struct json_object *block, *percentile_object, *states;
1170                         int state, i;
1171                         block = json_create_object();
1172                         json_object_add_value_object(root, "block", block);
1173
1174                         percentile_object = json_create_object();
1175                         json_object_add_value_object(block, "percentiles",
1176                                                      percentile_object);
1177                         for (i = 0; i < len; i++) {
1178                                 char buf[20];
1179                                 snprintf(buf, sizeof(buf), "%f",
1180                                          ts->percentile_list[i].u.f);
1181                                 json_object_add_value_int(percentile_object,
1182                                                           (const char *)buf,
1183                                                           percentiles[i]);
1184                         }
1185
1186                         states = json_create_object();
1187                         json_object_add_value_object(block, "states", states);
1188                         for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1189                                 json_object_add_value_int(states,
1190                                         block_state_names[state],
1191                                         block_state_counts[state]);
1192                         }
1193                         free(percentiles);
1194                 }
1195         }
1196
1197         return root;
1198 }
1199
1200 static void show_thread_status_terse(struct thread_stat *ts,
1201                                      struct group_run_stats *rs)
1202 {
1203         if (terse_version == 2)
1204                 show_thread_status_terse_v2(ts, rs);
1205         else if (terse_version == 3 || terse_version == 4)
1206                 show_thread_status_terse_v3_v4(ts, rs, terse_version);
1207         else
1208                 log_err("fio: bad terse version!? %d\n", terse_version);
1209 }
1210
1211 struct json_object *show_thread_status(struct thread_stat *ts,
1212                                        struct group_run_stats *rs)
1213 {
1214         if (output_format == FIO_OUTPUT_TERSE)
1215                 show_thread_status_terse(ts, rs);
1216         else if (output_format == FIO_OUTPUT_JSON)
1217                 return show_thread_status_json(ts, rs);
1218         else
1219                 show_thread_status_normal(ts, rs);
1220         return NULL;
1221 }
1222
1223 static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
1224 {
1225         double mean, S;
1226
1227         if (src->samples == 0)
1228                 return;
1229
1230         dst->min_val = min(dst->min_val, src->min_val);
1231         dst->max_val = max(dst->max_val, src->max_val);
1232
1233         /*
1234          * Compute new mean and S after the merge
1235          * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1236          *  #Parallel_algorithm>
1237          */
1238         if (nr == 1) {
1239                 mean = src->mean.u.f;
1240                 S = src->S.u.f;
1241         } else {
1242                 double delta = src->mean.u.f - dst->mean.u.f;
1243
1244                 mean = ((src->mean.u.f * src->samples) +
1245                         (dst->mean.u.f * dst->samples)) /
1246                         (dst->samples + src->samples);
1247
1248                 S =  src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1249                         (dst->samples * src->samples) /
1250                         (dst->samples + src->samples);
1251         }
1252
1253         dst->samples += src->samples;
1254         dst->mean.u.f = mean;
1255         dst->S.u.f = S;
1256 }
1257
1258 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1259 {
1260         int i;
1261
1262         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1263                 if (dst->max_run[i] < src->max_run[i])
1264                         dst->max_run[i] = src->max_run[i];
1265                 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1266                         dst->min_run[i] = src->min_run[i];
1267                 if (dst->max_bw[i] < src->max_bw[i])
1268                         dst->max_bw[i] = src->max_bw[i];
1269                 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1270                         dst->min_bw[i] = src->min_bw[i];
1271
1272                 dst->io_kb[i] += src->io_kb[i];
1273                 dst->agg[i] += src->agg[i];
1274         }
1275
1276         if (!dst->kb_base)
1277                 dst->kb_base = src->kb_base;
1278         if (!dst->unit_base)
1279                 dst->unit_base = src->unit_base;
1280 }
1281
1282 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
1283 {
1284         int l, k;
1285
1286         for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1287                 if (!dst->unified_rw_rep) {
1288                         sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
1289                         sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
1290                         sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
1291                         sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
1292
1293                         dst->io_bytes[l] += src->io_bytes[l];
1294
1295                         if (dst->runtime[l] < src->runtime[l])
1296                                 dst->runtime[l] = src->runtime[l];
1297                 } else {
1298                         sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr);
1299                         sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr);
1300                         sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr);
1301                         sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr);
1302
1303                         dst->io_bytes[0] += src->io_bytes[l];
1304
1305                         if (dst->runtime[0] < src->runtime[l])
1306                                 dst->runtime[0] = src->runtime[l];
1307                 }
1308         }
1309
1310         dst->usr_time += src->usr_time;
1311         dst->sys_time += src->sys_time;
1312         dst->ctx += src->ctx;
1313         dst->majf += src->majf;
1314         dst->minf += src->minf;
1315
1316         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1317                 dst->io_u_map[k] += src->io_u_map[k];
1318         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1319                 dst->io_u_submit[k] += src->io_u_submit[k];
1320         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1321                 dst->io_u_complete[k] += src->io_u_complete[k];
1322         for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1323                 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1324         for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1325                 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1326
1327         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1328                 if (!dst->unified_rw_rep) {
1329                         dst->total_io_u[k] += src->total_io_u[k];
1330                         dst->short_io_u[k] += src->short_io_u[k];
1331                         dst->drop_io_u[k] += src->drop_io_u[k];
1332                 } else {
1333                         dst->total_io_u[0] += src->total_io_u[k];
1334                         dst->short_io_u[0] += src->short_io_u[k];
1335                         dst->drop_io_u[0] += src->drop_io_u[k];
1336                 }
1337         }
1338
1339         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1340                 int m;
1341
1342                 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1343                         if (!dst->unified_rw_rep)
1344                                 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1345                         else
1346                                 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1347                 }
1348         }
1349
1350         dst->total_run_time += src->total_run_time;
1351         dst->total_submit += src->total_submit;
1352         dst->total_complete += src->total_complete;
1353 }
1354
1355 void init_group_run_stat(struct group_run_stats *gs)
1356 {
1357         int i;
1358         memset(gs, 0, sizeof(*gs));
1359
1360         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1361                 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1362 }
1363
1364 void init_thread_stat(struct thread_stat *ts)
1365 {
1366         int j;
1367
1368         memset(ts, 0, sizeof(*ts));
1369
1370         for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1371                 ts->lat_stat[j].min_val = -1UL;
1372                 ts->clat_stat[j].min_val = -1UL;
1373                 ts->slat_stat[j].min_val = -1UL;
1374                 ts->bw_stat[j].min_val = -1UL;
1375         }
1376         ts->groupid = -1;
1377 }
1378
1379 void __show_run_stats(void)
1380 {
1381         struct group_run_stats *runstats, *rs;
1382         struct thread_data *td;
1383         struct thread_stat *threadstats, *ts;
1384         int i, j, k, nr_ts, last_ts, idx;
1385         int kb_base_warned = 0;
1386         int unit_base_warned = 0;
1387         struct json_object *root = NULL;
1388         struct json_array *array = NULL;
1389         runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1390
1391         for (i = 0; i < groupid + 1; i++)
1392                 init_group_run_stat(&runstats[i]);
1393
1394         /*
1395          * find out how many threads stats we need. if group reporting isn't
1396          * enabled, it's one-per-td.
1397          */
1398         nr_ts = 0;
1399         last_ts = -1;
1400         for_each_td(td, i) {
1401                 if (!td->o.group_reporting) {
1402                         nr_ts++;
1403                         continue;
1404                 }
1405                 if (last_ts == td->groupid)
1406                         continue;
1407
1408                 last_ts = td->groupid;
1409                 nr_ts++;
1410         }
1411
1412         threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1413
1414         for (i = 0; i < nr_ts; i++)
1415                 init_thread_stat(&threadstats[i]);
1416
1417         j = 0;
1418         last_ts = -1;
1419         idx = 0;
1420         for_each_td(td, i) {
1421                 if (idx && (!td->o.group_reporting ||
1422                     (td->o.group_reporting && last_ts != td->groupid))) {
1423                         idx = 0;
1424                         j++;
1425                 }
1426
1427                 last_ts = td->groupid;
1428
1429                 ts = &threadstats[j];
1430
1431                 ts->clat_percentiles = td->o.clat_percentiles;
1432                 ts->percentile_precision = td->o.percentile_precision;
1433                 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1434
1435                 idx++;
1436                 ts->members++;
1437
1438                 if (ts->groupid == -1) {
1439                         /*
1440                          * These are per-group shared already
1441                          */
1442                         strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1443                         if (td->o.description)
1444                                 strncpy(ts->description, td->o.description,
1445                                                 FIO_JOBDESC_SIZE - 1);
1446                         else
1447                                 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1448
1449                         /*
1450                          * If multiple entries in this group, this is
1451                          * the first member.
1452                          */
1453                         ts->thread_number = td->thread_number;
1454                         ts->groupid = td->groupid;
1455
1456                         /*
1457                          * first pid in group, not very useful...
1458                          */
1459                         ts->pid = td->pid;
1460
1461                         ts->kb_base = td->o.kb_base;
1462                         ts->unit_base = td->o.unit_base;
1463                         ts->unified_rw_rep = td->o.unified_rw_rep;
1464                 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1465                         log_info("fio: kb_base differs for jobs in group, using"
1466                                  " %u as the base\n", ts->kb_base);
1467                         kb_base_warned = 1;
1468                 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1469                         log_info("fio: unit_base differs for jobs in group, using"
1470                                  " %u as the base\n", ts->unit_base);
1471                         unit_base_warned = 1;
1472                 }
1473
1474                 ts->continue_on_error = td->o.continue_on_error;
1475                 ts->total_err_count += td->total_err_count;
1476                 ts->first_error = td->first_error;
1477                 if (!ts->error) {
1478                         if (!td->error && td->o.continue_on_error &&
1479                             td->first_error) {
1480                                 ts->error = td->first_error;
1481                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1482                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1483                         } else  if (td->error) {
1484                                 ts->error = td->error;
1485                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1486                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1487                         }
1488                 }
1489
1490                 ts->latency_depth = td->latency_qd;
1491                 ts->latency_target = td->o.latency_target;
1492                 ts->latency_percentile = td->o.latency_percentile;
1493                 ts->latency_window = td->o.latency_window;
1494
1495                 ts->nr_block_infos = td->ts.nr_block_infos;
1496                 for (k = 0; k < ts->nr_block_infos; k++)
1497                         ts->block_infos[k] = td->ts.block_infos[k];
1498
1499                 sum_thread_stats(ts, &td->ts, idx);
1500         }
1501
1502         for (i = 0; i < nr_ts; i++) {
1503                 unsigned long long bw;
1504
1505                 ts = &threadstats[i];
1506                 rs = &runstats[ts->groupid];
1507                 rs->kb_base = ts->kb_base;
1508                 rs->unit_base = ts->unit_base;
1509                 rs->unified_rw_rep += ts->unified_rw_rep;
1510
1511                 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1512                         if (!ts->runtime[j])
1513                                 continue;
1514                         if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1515                                 rs->min_run[j] = ts->runtime[j];
1516                         if (ts->runtime[j] > rs->max_run[j])
1517                                 rs->max_run[j] = ts->runtime[j];
1518
1519                         bw = 0;
1520                         if (ts->runtime[j]) {
1521                                 unsigned long runt = ts->runtime[j];
1522                                 unsigned long long kb;
1523
1524                                 kb = ts->io_bytes[j] / rs->kb_base;
1525                                 bw = kb * 1000 / runt;
1526                         }
1527                         if (bw < rs->min_bw[j])
1528                                 rs->min_bw[j] = bw;
1529                         if (bw > rs->max_bw[j])
1530                                 rs->max_bw[j] = bw;
1531
1532                         rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1533                 }
1534         }
1535
1536         for (i = 0; i < groupid + 1; i++) {
1537                 int ddir;
1538
1539                 rs = &runstats[i];
1540
1541                 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1542                         if (rs->max_run[ddir])
1543                                 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1544                                                 rs->max_run[ddir];
1545                 }
1546         }
1547
1548         /*
1549          * don't overwrite last signal output
1550          */
1551         if (output_format == FIO_OUTPUT_NORMAL)
1552                 log_info("\n");
1553         else if (output_format == FIO_OUTPUT_JSON) {
1554                 char time_buf[32];
1555                 time_t time_p;
1556
1557                 time(&time_p);
1558                 os_ctime_r((const time_t *) &time_p, time_buf,
1559                                 sizeof(time_buf));
1560                 time_buf[strlen(time_buf) - 1] = '\0';
1561
1562                 root = json_create_object();
1563                 json_object_add_value_string(root, "fio version", fio_version_string);
1564                 json_object_add_value_int(root, "timestamp", time_p);
1565                 json_object_add_value_string(root, "time", time_buf);
1566                 array = json_create_array();
1567                 json_object_add_value_array(root, "jobs", array);
1568         }
1569
1570         for (i = 0; i < nr_ts; i++) {
1571                 ts = &threadstats[i];
1572                 rs = &runstats[ts->groupid];
1573
1574                 if (is_backend)
1575                         fio_server_send_ts(ts, rs);
1576                 else if (output_format == FIO_OUTPUT_TERSE)
1577                         show_thread_status_terse(ts, rs);
1578                 else if (output_format == FIO_OUTPUT_JSON) {
1579                         struct json_object *tmp = show_thread_status_json(ts, rs);
1580                         json_array_add_value_object(array, tmp);
1581                 } else
1582                         show_thread_status_normal(ts, rs);
1583         }
1584         if (output_format == FIO_OUTPUT_JSON) {
1585                 /* disk util stats, if any */
1586                 show_disk_util(1, root);
1587
1588                 show_idle_prof_stats(FIO_OUTPUT_JSON, root);
1589
1590                 json_print_object(root);
1591                 log_info("\n");
1592                 json_free_object(root);
1593         }
1594
1595         for (i = 0; i < groupid + 1; i++) {
1596                 rs = &runstats[i];
1597
1598                 rs->groupid = i;
1599                 if (is_backend)
1600                         fio_server_send_gs(rs);
1601                 else if (output_format == FIO_OUTPUT_NORMAL)
1602                         show_group_stats(rs);
1603         }
1604
1605         if (is_backend)
1606                 fio_server_send_du();
1607         else if (output_format == FIO_OUTPUT_NORMAL) {
1608                 show_disk_util(0, NULL);
1609                 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL);
1610         }
1611
1612         if ( !(output_format == FIO_OUTPUT_TERSE) && append_terse_output) {
1613                 log_info("\nAdditional Terse Output:\n");
1614
1615                 for (i = 0; i < nr_ts; i++) {
1616                         ts = &threadstats[i];
1617                         rs = &runstats[ts->groupid];
1618                         show_thread_status_terse(ts, rs);
1619                 }
1620         }
1621
1622         log_info_flush();
1623         free(runstats);
1624         free(threadstats);
1625 }
1626
1627 void show_run_stats(void)
1628 {
1629         fio_mutex_down(stat_mutex);
1630         __show_run_stats();
1631         fio_mutex_up(stat_mutex);
1632 }
1633
1634 void __show_running_run_stats(void)
1635 {
1636         struct thread_data *td;
1637         unsigned long long *rt;
1638         struct timeval tv;
1639         int i;
1640
1641         fio_mutex_down(stat_mutex);
1642
1643         rt = malloc(thread_number * sizeof(unsigned long long));
1644         fio_gettime(&tv, NULL);
1645
1646         for_each_td(td, i) {
1647                 rt[i] = mtime_since(&td->start, &tv);
1648                 if (td_read(td) && td->io_bytes[DDIR_READ])
1649                         td->ts.runtime[DDIR_READ] += rt[i];
1650                 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1651                         td->ts.runtime[DDIR_WRITE] += rt[i];
1652                 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1653                         td->ts.runtime[DDIR_TRIM] += rt[i];
1654
1655                 td->update_rusage = 1;
1656                 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1657                 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1658                 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1659                 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1660         }
1661
1662         for_each_td(td, i) {
1663                 if (td->runstate >= TD_EXITED)
1664                         continue;
1665                 if (td->rusage_sem) {
1666                         td->update_rusage = 1;
1667                         fio_mutex_down(td->rusage_sem);
1668                 }
1669                 td->update_rusage = 0;
1670         }
1671
1672         __show_run_stats();
1673
1674         for_each_td(td, i) {
1675                 if (td_read(td) && td->io_bytes[DDIR_READ])
1676                         td->ts.runtime[DDIR_READ] -= rt[i];
1677                 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1678                         td->ts.runtime[DDIR_WRITE] -= rt[i];
1679                 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1680                         td->ts.runtime[DDIR_TRIM] -= rt[i];
1681         }
1682
1683         free(rt);
1684         fio_mutex_up(stat_mutex);
1685 }
1686
1687 static int status_interval_init;
1688 static struct timeval status_time;
1689 static int status_file_disabled;
1690
1691 #define FIO_STATUS_FILE         "fio-dump-status"
1692
1693 static int check_status_file(void)
1694 {
1695         struct stat sb;
1696         const char *temp_dir;
1697         char fio_status_file_path[PATH_MAX];
1698
1699         if (status_file_disabled)
1700                 return 0;
1701
1702         temp_dir = getenv("TMPDIR");
1703         if (temp_dir == NULL) {
1704                 temp_dir = getenv("TEMP");
1705                 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1706                         temp_dir = NULL;
1707         }
1708         if (temp_dir == NULL)
1709                 temp_dir = "/tmp";
1710
1711         snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1712
1713         if (stat(fio_status_file_path, &sb))
1714                 return 0;
1715
1716         if (unlink(fio_status_file_path) < 0) {
1717                 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1718                                                         strerror(errno));
1719                 log_err("fio: disabling status file updates\n");
1720                 status_file_disabled = 1;
1721         }
1722
1723         return 1;
1724 }
1725
1726 void check_for_running_stats(void)
1727 {
1728         if (status_interval) {
1729                 if (!status_interval_init) {
1730                         fio_gettime(&status_time, NULL);
1731                         status_interval_init = 1;
1732                 } else if (mtime_since_now(&status_time) >= status_interval) {
1733                         show_running_run_stats();
1734                         fio_gettime(&status_time, NULL);
1735                         return;
1736                 }
1737         }
1738         if (check_status_file()) {
1739                 show_running_run_stats();
1740                 return;
1741         }
1742 }
1743
1744 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1745 {
1746         double val = data;
1747         double delta;
1748
1749         if (data > is->max_val)
1750                 is->max_val = data;
1751         if (data < is->min_val)
1752                 is->min_val = data;
1753
1754         delta = val - is->mean.u.f;
1755         if (delta) {
1756                 is->mean.u.f += delta / (is->samples + 1.0);
1757                 is->S.u.f += delta * (val - is->mean.u.f);
1758         }
1759
1760         is->samples++;
1761 }
1762
1763 static void __add_log_sample(struct io_log *iolog, unsigned long val,
1764                              enum fio_ddir ddir, unsigned int bs,
1765                              unsigned long t, uint64_t offset)
1766 {
1767         uint64_t nr_samples = iolog->nr_samples;
1768         struct io_sample *s;
1769
1770         if (iolog->disabled)
1771                 return;
1772
1773         if (!iolog->nr_samples)
1774                 iolog->avg_last = t;
1775
1776         if (iolog->nr_samples == iolog->max_samples) {
1777                 size_t new_size;
1778                 void *new_log;
1779
1780                 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1781
1782                 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1783                         if (iolog_flush(iolog, 0)) {
1784                                 log_err("fio: failed flushing iolog! Will stop logging.\n");
1785                                 iolog->disabled = 1;
1786                                 return;
1787                         }
1788                         nr_samples = iolog->nr_samples;
1789                 } else {
1790                         new_log = realloc(iolog->log, new_size);
1791                         if (!new_log) {
1792                                 log_err("fio: failed extending iolog! Will stop logging.\n");
1793                                 iolog->disabled = 1;
1794                                 return;
1795                         }
1796                         iolog->log = new_log;
1797                         iolog->max_samples <<= 1;
1798                 }
1799         }
1800
1801         s = get_sample(iolog, nr_samples);
1802
1803         s->val = val;
1804         s->time = t;
1805         io_sample_set_ddir(iolog, s, ddir);
1806         s->bs = bs;
1807
1808         if (iolog->log_offset) {
1809                 struct io_sample_offset *so = (void *) s;
1810
1811                 so->offset = offset;
1812         }
1813
1814         iolog->nr_samples++;
1815 }
1816
1817 static inline void reset_io_stat(struct io_stat *ios)
1818 {
1819         ios->max_val = ios->min_val = ios->samples = 0;
1820         ios->mean.u.f = ios->S.u.f = 0;
1821 }
1822
1823 void reset_io_stats(struct thread_data *td)
1824 {
1825         struct thread_stat *ts = &td->ts;
1826         int i, j;
1827
1828         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1829                 reset_io_stat(&ts->clat_stat[i]);
1830                 reset_io_stat(&ts->slat_stat[i]);
1831                 reset_io_stat(&ts->lat_stat[i]);
1832                 reset_io_stat(&ts->bw_stat[i]);
1833                 reset_io_stat(&ts->iops_stat[i]);
1834
1835                 ts->io_bytes[i] = 0;
1836                 ts->runtime[i] = 0;
1837
1838                 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1839                         ts->io_u_plat[i][j] = 0;
1840         }
1841
1842         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1843                 ts->io_u_map[i] = 0;
1844                 ts->io_u_submit[i] = 0;
1845                 ts->io_u_complete[i] = 0;
1846                 ts->io_u_lat_u[i] = 0;
1847                 ts->io_u_lat_m[i] = 0;
1848                 ts->total_submit = 0;
1849                 ts->total_complete = 0;
1850         }
1851
1852         for (i = 0; i < 3; i++) {
1853                 ts->total_io_u[i] = 0;
1854                 ts->short_io_u[i] = 0;
1855                 ts->drop_io_u[i] = 0;
1856         }
1857 }
1858
1859 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed)
1860 {
1861         /*
1862          * Note an entry in the log. Use the mean from the logged samples,
1863          * making sure to properly round up. Only write a log entry if we
1864          * had actual samples done.
1865          */
1866         if (iolog->avg_window[DDIR_READ].samples) {
1867                 unsigned long mr;
1868
1869                 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
1870                 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0);
1871         }
1872         if (iolog->avg_window[DDIR_WRITE].samples) {
1873                 unsigned long mw;
1874
1875                 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
1876                 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0);
1877         }
1878         if (iolog->avg_window[DDIR_TRIM].samples) {
1879                 unsigned long mw;
1880
1881                 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
1882                 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0);
1883         }
1884
1885         reset_io_stat(&iolog->avg_window[DDIR_READ]);
1886         reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
1887         reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
1888 }
1889
1890 static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1891                            unsigned long val, enum fio_ddir ddir,
1892                            unsigned int bs, uint64_t offset)
1893 {
1894         unsigned long elapsed, this_window;
1895
1896         if (!ddir_rw(ddir))
1897                 return;
1898
1899         elapsed = mtime_since_now(&td->epoch);
1900
1901         /*
1902          * If no time averaging, just add the log sample.
1903          */
1904         if (!iolog->avg_msec) {
1905                 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1906                 return;
1907         }
1908
1909         /*
1910          * Add the sample. If the time period has passed, then
1911          * add that entry to the log and clear.
1912          */
1913         add_stat_sample(&iolog->avg_window[ddir], val);
1914
1915         /*
1916          * If period hasn't passed, adding the above sample is all we
1917          * need to do.
1918          */
1919         this_window = elapsed - iolog->avg_last;
1920         if (this_window < iolog->avg_msec)
1921                 return;
1922
1923         _add_stat_to_log(iolog, elapsed);
1924
1925         iolog->avg_last = elapsed;
1926 }
1927
1928 void finalize_logs(struct thread_data *td)
1929 {
1930         unsigned long elapsed;
1931
1932         elapsed = mtime_since_now(&td->epoch);
1933
1934         if (td->clat_log)
1935                 _add_stat_to_log(td->clat_log, elapsed);
1936         if (td->slat_log)
1937                 _add_stat_to_log(td->slat_log, elapsed);
1938         if (td->lat_log)
1939                 _add_stat_to_log(td->lat_log, elapsed);
1940         if (td->bw_log)
1941                 _add_stat_to_log(td->bw_log, elapsed);
1942         if (td->iops_log)
1943                 _add_stat_to_log(td->iops_log, elapsed);
1944 }
1945
1946 void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
1947 {
1948         struct io_log *iolog;
1949
1950         if (!ddir_rw(ddir))
1951                 return;
1952
1953         iolog = agg_io_log[ddir];
1954         __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
1955 }
1956
1957 static void add_clat_percentile_sample(struct thread_stat *ts,
1958                                 unsigned long usec, enum fio_ddir ddir)
1959 {
1960         unsigned int idx = plat_val_to_idx(usec);
1961         assert(idx < FIO_IO_U_PLAT_NR);
1962
1963         ts->io_u_plat[ddir][idx]++;
1964 }
1965
1966 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
1967                      unsigned long usec, unsigned int bs, uint64_t offset)
1968 {
1969         struct thread_stat *ts = &td->ts;
1970
1971         if (!ddir_rw(ddir))
1972                 return;
1973
1974         td_io_u_lock(td);
1975
1976         add_stat_sample(&ts->clat_stat[ddir], usec);
1977
1978         if (td->clat_log)
1979                 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
1980
1981         if (ts->clat_percentiles)
1982                 add_clat_percentile_sample(ts, usec, ddir);
1983
1984         td_io_u_unlock(td);
1985 }
1986
1987 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
1988                      unsigned long usec, unsigned int bs, uint64_t offset)
1989 {
1990         struct thread_stat *ts = &td->ts;
1991
1992         if (!ddir_rw(ddir))
1993                 return;
1994
1995         td_io_u_lock(td);
1996
1997         add_stat_sample(&ts->slat_stat[ddir], usec);
1998
1999         if (td->slat_log)
2000                 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
2001
2002         td_io_u_unlock(td);
2003 }
2004
2005 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2006                     unsigned long usec, unsigned int bs, uint64_t offset)
2007 {
2008         struct thread_stat *ts = &td->ts;
2009
2010         if (!ddir_rw(ddir))
2011                 return;
2012
2013         td_io_u_lock(td);
2014
2015         add_stat_sample(&ts->lat_stat[ddir], usec);
2016
2017         if (td->lat_log)
2018                 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2019
2020         td_io_u_unlock(td);
2021 }
2022
2023 void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2024                    struct timeval *t)
2025 {
2026         struct thread_stat *ts = &td->ts;
2027         unsigned long spent, rate;
2028
2029         if (!ddir_rw(ddir))
2030                 return;
2031
2032         spent = mtime_since(&td->bw_sample_time, t);
2033         if (spent < td->o.bw_avg_time)
2034                 return;
2035
2036         td_io_u_lock(td);
2037
2038         /*
2039          * Compute both read and write rates for the interval.
2040          */
2041         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2042                 uint64_t delta;
2043
2044                 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2045                 if (!delta)
2046                         continue; /* No entries for interval */
2047
2048                 if (spent)
2049                         rate = delta * 1000 / spent / 1024;
2050                 else
2051                         rate = 0;
2052
2053                 add_stat_sample(&ts->bw_stat[ddir], rate);
2054
2055                 if (td->bw_log)
2056                         add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2057
2058                 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2059         }
2060
2061         fio_gettime(&td->bw_sample_time, NULL);
2062         td_io_u_unlock(td);
2063 }
2064
2065 void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2066                      struct timeval *t)
2067 {
2068         struct thread_stat *ts = &td->ts;
2069         unsigned long spent, iops;
2070
2071         if (!ddir_rw(ddir))
2072                 return;
2073
2074         spent = mtime_since(&td->iops_sample_time, t);
2075         if (spent < td->o.iops_avg_time)
2076                 return;
2077
2078         td_io_u_lock(td);
2079
2080         /*
2081          * Compute both read and write rates for the interval.
2082          */
2083         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2084                 uint64_t delta;
2085
2086                 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2087                 if (!delta)
2088                         continue; /* No entries for interval */
2089
2090                 if (spent)
2091                         iops = (delta * 1000) / spent;
2092                 else
2093                         iops = 0;
2094
2095                 add_stat_sample(&ts->iops_stat[ddir], iops);
2096
2097                 if (td->iops_log)
2098                         add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2099
2100                 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2101         }
2102
2103         fio_gettime(&td->iops_sample_time, NULL);
2104         td_io_u_unlock(td);
2105 }
2106
2107 void stat_init(void)
2108 {
2109         stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2110 }
2111
2112 void stat_exit(void)
2113 {
2114         /*
2115          * When we have the mutex, we know out-of-band access to it
2116          * have ended.
2117          */
2118         fio_mutex_down(stat_mutex);
2119         fio_mutex_remove(stat_mutex);
2120 }
2121
2122 /*
2123  * Called from signal handler. Wake up status thread.
2124  */
2125 void show_running_run_stats(void)
2126 {
2127         helper_do_stat = 1;
2128         pthread_cond_signal(&helper_cond);
2129 }
2130
2131 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2132 {
2133         /* Ignore io_u's which span multiple blocks--they will just get
2134          * inaccurate counts. */
2135         int idx = (io_u->offset - io_u->file->file_offset)
2136                         / td->o.bs[DDIR_TRIM];
2137         uint32_t *info = &td->ts.block_infos[idx];
2138         assert(idx < td->ts.nr_block_infos);
2139         return info;
2140 }