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 #include "lib/output_buffer.h"
  18 #include "helper_thread.h"
  19 #include "smalloc.h"
  20
  21 #define LOG_MSEC_SLACK  10
  22
  23 struct fio_mutex *stat_mutex;
  24
  25 void clear_rusage_stat(struct thread_data *td)
  26 {
  27         struct thread_stat *ts = &td->ts;
  28
  29         fio_getrusage(&td->ru_start);
  30         ts->usr_time = ts->sys_time = 0;
  31         ts->ctx = 0;
  32         ts->minf = ts->majf = 0;
  33 }
  34
  35 void update_rusage_stat(struct thread_data *td)
  36 {
  37         struct thread_stat *ts = &td->ts;
  38
  39         fio_getrusage(&td->ru_end);
  40         ts->usr_time += mtime_since(&td->ru_start.ru_utime,
  41                                         &td->ru_end.ru_utime);
  42         ts->sys_time += mtime_since(&td->ru_start.ru_stime,
  43                                         &td->ru_end.ru_stime);
  44         ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
  45                         - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
  46         ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
  47         ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
  48
  49         memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
  50 }
  51
  52 /*
  53  * Given a latency, return the index of the corresponding bucket in
  54  * the structure tracking percentiles.
  55  *
  56  * (1) find the group (and error bits) that the value (latency)
  57  * belongs to by looking at its MSB. (2) find the bucket number in the
  58  * group by looking at the index bits.
  59  *
  60  */
  61 static unsigned int plat_val_to_idx(unsigned int val)
  62 {
  63         unsigned int msb, error_bits, base, offset, idx;
  64
  65         /* Find MSB starting from bit 0 */
  66         if (val == 0)
  67                 msb = 0;
  68         else
  69                 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
  70
  71         /*
  72          * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
  73          * all bits of the sample as index
  74          */
  75         if (msb <= FIO_IO_U_PLAT_BITS)
  76                 return val;
  77
  78         /* Compute the number of error bits to discard*/
  79         error_bits = msb - FIO_IO_U_PLAT_BITS;
  80
  81         /* Compute the number of buckets before the group */
  82         base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
  83
  84         /*
  85          * Discard the error bits and apply the mask to find the
  86          * index for the buckets in the group
  87          */
  88         offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
  89
  90         /* Make sure the index does not exceed (array size - 1) */
  91         idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
  92                 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
  93
  94         return idx;
  95 }
  96
  97 /*
  98  * Convert the given index of the bucket array to the value
  99  * represented by the bucket
 100  */
 101 static unsigned long long plat_idx_to_val(unsigned int idx)
 102 {
 103         unsigned int error_bits, k, base;
 104
 105         assert(idx < FIO_IO_U_PLAT_NR);
 106
 107         /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
 108          * all bits of the sample as index */
 109         if (idx < (FIO_IO_U_PLAT_VAL << 1))
 110                 return idx;
 111
 112         /* Find the group and compute the minimum value of that group */
 113         error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
 114         base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
 115
 116         /* Find its bucket number of the group */
 117         k = idx % FIO_IO_U_PLAT_VAL;
 118
 119         /* Return the mean of the range of the bucket */
 120         return base + ((k + 0.5) * (1 << error_bits));
 121 }
 122
 123 static int double_cmp(const void *a, const void *b)
 124 {
 125         const fio_fp64_t fa = *(const fio_fp64_t *) a;
 126         const fio_fp64_t fb = *(const fio_fp64_t *) b;
 127         int cmp = 0;
 128
 129         if (fa.u.f > fb.u.f)
 130                 cmp = 1;
 131         else if (fa.u.f < fb.u.f)
 132                 cmp = -1;
 133
 134         return cmp;
 135 }
 136
 137 unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
 138                                    fio_fp64_t *plist, unsigned int **output,
 139                                    unsigned int *maxv, unsigned int *minv)
 140 {
 141         unsigned long sum = 0;
 142         unsigned int len, i, j = 0;
 143         unsigned int oval_len = 0;
 144         unsigned int *ovals = NULL;
 145         int is_last;
 146
 147         *minv = -1U;
 148         *maxv = 0;
 149
 150         len = 0;
 151         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 152                 len++;
 153
 154         if (!len)
 155                 return 0;
 156
 157         /*
 158          * Sort the percentile list. Note that it may already be sorted if
 159          * we are using the default values, but since it's a short list this
 160          * isn't a worry. Also note that this does not work for NaN values.
 161          */
 162         if (len > 1)
 163                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 164
 165         /*
 166          * Calculate bucket values, note down max and min values
 167          */
 168         is_last = 0;
 169         for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
 170                 sum += io_u_plat[i];
 171                 while (sum >= (plist[j].u.f / 100.0 * nr)) {
 172                         assert(plist[j].u.f <= 100.0);
 173
 174                         if (j == oval_len) {
 175                                 oval_len += 100;
 176                                 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
 177                         }
 178
 179                         ovals[j] = plat_idx_to_val(i);
 180                         if (ovals[j] < *minv)
 181                                 *minv = ovals[j];
 182                         if (ovals[j] > *maxv)
 183                                 *maxv = ovals[j];
 184
 185                         is_last = (j == len - 1);
 186                         if (is_last)
 187                                 break;
 188
 189                         j++;
 190                 }
 191         }
 192
 193         *output = ovals;
 194         return len;
 195 }
 196
 197 /*
 198  * Find and display the p-th percentile of clat
 199  */
 200 static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
 201                                   fio_fp64_t *plist, unsigned int precision,
 202                                   struct buf_output *out)
 203 {
 204         unsigned int len, j = 0, minv, maxv;
 205         unsigned int *ovals;
 206         int is_last, per_line, scale_down;
 207         char fmt[32];
 208
 209         len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
 210         if (!len)
 211                 goto out;
 212
 213         /*
 214          * We default to usecs, but if the value range is such that we
 215          * should scale down to msecs, do that.
 216          */
 217         if (minv > 2000 && maxv > 99999) {
 218                 scale_down = 1;
 219                 log_buf(out, "    clat percentiles (msec):\n     |");
 220         } else {
 221                 scale_down = 0;
 222                 log_buf(out, "    clat percentiles (usec):\n     |");
 223         }
 224
 225         snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
 226         per_line = (80 - 7) / (precision + 14);
 227
 228         for (j = 0; j < len; j++) {
 229                 char fbuf[16], *ptr = fbuf;
 230
 231                 /* for formatting */
 232                 if (j != 0 && (j % per_line) == 0)
 233                         log_buf(out, "     |");
 234
 235                 /* end of the list */
 236                 is_last = (j == len - 1);
 237
 238                 if (plist[j].u.f < 10.0)
 239                         ptr += sprintf(fbuf, " ");
 240
 241                 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
 242
 243                 if (scale_down)
 244                         ovals[j] = (ovals[j] + 999) / 1000;
 245
 246                 log_buf(out, " %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
 247
 248                 if (is_last)
 249                         break;
 250
 251                 if ((j % per_line) == per_line - 1)     /* for formatting */
 252                         log_buf(out, "\n");
 253         }
 254
 255 out:
 256         if (ovals)
 257                 free(ovals);
 258 }
 259
 260 bool calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
 261               double *mean, double *dev)
 262 {
 263         double n = (double) is->samples;
 264
 265         if (n == 0)
 266                 return false;
 267
 268         *min = is->min_val;
 269         *max = is->max_val;
 270         *mean = is->mean.u.f;
 271
 272         if (n > 1.0)
 273                 *dev = sqrt(is->S.u.f / (n - 1.0));
 274         else
 275                 *dev = 0;
 276
 277         return true;
 278 }
 279
 280 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
 281 {
 282         char *io, *agg, *min, *max;
 283         char *ioalt, *aggalt, *minalt, *maxalt;
 284         const char *str[] = { "   READ", "  WRITE" , "   TRIM"};
 285         int i;
 286
 287         log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
 288
 289         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 290                 const int i2p = is_power_of_2(rs->kb_base);
 291
 292                 if (!rs->max_run[i])
 293                         continue;
 294
 295                 io = num2str(rs->iobytes[i], 4, 1, i2p, N2S_BYTE);
 296                 ioalt = num2str(rs->iobytes[i], 4, 1, !i2p, N2S_BYTE);
 297                 agg = num2str(rs->agg[i], 4, 1, i2p, rs->unit_base);
 298                 aggalt = num2str(rs->agg[i], 4, 1, !i2p, rs->unit_base);
 299                 min = num2str(rs->min_bw[i], 4, 1, i2p, rs->unit_base);
 300                 minalt = num2str(rs->min_bw[i], 4, 1, !i2p, rs->unit_base);
 301                 max = num2str(rs->max_bw[i], 4, 1, i2p, rs->unit_base);
 302                 maxalt = num2str(rs->max_bw[i], 4, 1, !i2p, rs->unit_base);
 303                 log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
 304                                 rs->unified_rw_rep ? "  MIXED" : str[i],
 305                                 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
 306                                 (unsigned long long) rs->min_run[i],
 307                                 (unsigned long long) rs->max_run[i]);
 308
 309                 free(io);
 310                 free(agg);
 311                 free(min);
 312                 free(max);
 313                 free(ioalt);
 314                 free(aggalt);
 315                 free(minalt);
 316                 free(maxalt);
 317         }
 318 }
 319
 320 void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
 321 {
 322         int i;
 323
 324         /*
 325          * Do depth distribution calculations
 326          */
 327         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
 328                 if (total) {
 329                         io_u_dist[i] = (double) map[i] / (double) total;
 330                         io_u_dist[i] *= 100.0;
 331                         if (io_u_dist[i] < 0.1 && map[i])
 332                                 io_u_dist[i] = 0.1;
 333                 } else
 334                         io_u_dist[i] = 0.0;
 335         }
 336 }
 337
 338 static void stat_calc_lat(struct thread_stat *ts, double *dst,
 339                           unsigned int *src, int nr)
 340 {
 341         unsigned long total = ddir_rw_sum(ts->total_io_u);
 342         int i;
 343
 344         /*
 345          * Do latency distribution calculations
 346          */
 347         for (i = 0; i < nr; i++) {
 348                 if (total) {
 349                         dst[i] = (double) src[i] / (double) total;
 350                         dst[i] *= 100.0;
 351                         if (dst[i] < 0.01 && src[i])
 352                                 dst[i] = 0.01;
 353                 } else
 354                         dst[i] = 0.0;
 355         }
 356 }
 357
 358 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
 359 {
 360         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
 361 }
 362
 363 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
 364 {
 365         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
 366 }
 367
 368 static void display_lat(const char *name, unsigned long min, unsigned long max,
 369                         double mean, double dev, struct buf_output *out)
 370 {
 371         const char *base = "(usec)";
 372         char *minp, *maxp;
 373
 374         if (usec_to_msec(&min, &max, &mean, &dev))
 375                 base = "(msec)";
 376
 377         minp = num2str(min, 6, 1, 0, N2S_NONE);
 378         maxp = num2str(max, 6, 1, 0, N2S_NONE);
 379
 380         log_buf(out, "    %s %s: min=%s, max=%s, avg=%5.02f,"
 381                  " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
 382
 383         free(minp);
 384         free(maxp);
 385 }
 386
 387 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 388                              int ddir, struct buf_output *out)
 389 {
 390         const char *str[] = { " read", "write", " trim" };
 391         unsigned long min, max, runt;
 392         unsigned long long bw, iops;
 393         double mean, dev;
 394         char *io_p, *bw_p, *bw_p_alt, *iops_p;
 395         int i2p;
 396
 397         assert(ddir_rw(ddir));
 398
 399         if (!ts->runtime[ddir])
 400                 return;
 401
 402         i2p = is_power_of_2(rs->kb_base);
 403         runt = ts->runtime[ddir];
 404
 405         bw = (1000 * ts->io_bytes[ddir]) / runt;
 406         io_p = num2str(ts->io_bytes[ddir], 4, 1, i2p, N2S_BYTE);
 407         bw_p = num2str(bw, 4, 1, i2p, ts->unit_base);
 408         bw_p_alt = num2str(bw, 4, 1, !i2p, ts->unit_base);
 409
 410         iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
 411         iops_p = num2str(iops, 4, 1, 0, N2S_NONE);
 412
 413         log_buf(out, "  %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)\n",
 414                         rs->unified_rw_rep ? "mixed" : str[ddir],
 415                         iops_p, bw_p, bw_p_alt, io_p,
 416                         (unsigned long long) ts->runtime[ddir]);
 417
 418         free(io_p);
 419         free(bw_p);
 420         free(bw_p_alt);
 421         free(iops_p);
 422
 423         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 424                 display_lat("slat", min, max, mean, dev, out);
 425         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 426                 display_lat("clat", min, max, mean, dev, out);
 427         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 428                 display_lat(" lat", min, max, mean, dev, out);
 429
 430         if (ts->clat_percentiles) {
 431                 show_clat_percentiles(ts->io_u_plat[ddir],
 432                                         ts->clat_stat[ddir].samples,
 433                                         ts->percentile_list,
 434                                         ts->percentile_precision, out);
 435         }
 436         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 437                 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
 438                 const char *bw_str;
 439
 440                 if ((rs->unit_base == 1) && i2p)
 441                         bw_str = "Kibit";
 442                 else if (rs->unit_base == 1)
 443                         bw_str = "kbit";
 444                 else if (i2p)
 445                         bw_str = "KiB";
 446                 else
 447                         bw_str = "kB";
 448
 449                 if (rs->unit_base == 1) {
 450                         min *= 8.0;
 451                         max *= 8.0;
 452                         mean *= 8.0;
 453                         dev *= 8.0;
 454                 }
 455
 456                 if (rs->agg[ddir]) {
 457                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 458                         if (p_of_agg > 100.0)
 459                                 p_of_agg = 100.0;
 460                 }
 461
 462                 if (mean > fkb_base * fkb_base) {
 463                         min /= fkb_base;
 464                         max /= fkb_base;
 465                         mean /= fkb_base;
 466                         dev /= fkb_base;
 467                         bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
 468                 }
 469
 470                 log_buf(out, "   bw (%5s/s): min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n",
 471                         bw_str, min, max, p_of_agg, mean, dev);
 472         }
 473 }
 474
 475 static int show_lat(double *io_u_lat, int nr, const char **ranges,
 476                     const char *msg, struct buf_output *out)
 477 {
 478         int new_line = 1, i, line = 0, shown = 0;
 479
 480         for (i = 0; i < nr; i++) {
 481                 if (io_u_lat[i] <= 0.0)
 482                         continue;
 483                 shown = 1;
 484                 if (new_line) {
 485                         if (line)
 486                                 log_buf(out, "\n");
 487                         log_buf(out, "    lat (%s) : ", msg);
 488                         new_line = 0;
 489                         line = 0;
 490                 }
 491                 if (line)
 492                         log_buf(out, ", ");
 493                 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
 494                 line++;
 495                 if (line == 5)
 496                         new_line = 1;
 497         }
 498
 499         if (shown)
 500                 log_buf(out, "\n");
 501
 502         return shown;
 503 }
 504
 505 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
 506 {
 507         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 508                                  "250=", "500=", "750=", "1000=", };
 509
 510         show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
 511 }
 512
 513 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
 514 {
 515         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 516                                  "250=", "500=", "750=", "1000=", "2000=",
 517                                  ">=2000=", };
 518
 519         show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
 520 }
 521
 522 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
 523 {
 524         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 525         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
 526
 527         stat_calc_lat_u(ts, io_u_lat_u);
 528         stat_calc_lat_m(ts, io_u_lat_m);
 529
 530         show_lat_u(io_u_lat_u, out);
 531         show_lat_m(io_u_lat_m, out);
 532 }
 533
 534 static int block_state_category(int block_state)
 535 {
 536         switch (block_state) {
 537         case BLOCK_STATE_UNINIT:
 538                 return 0;
 539         case BLOCK_STATE_TRIMMED:
 540         case BLOCK_STATE_WRITTEN:
 541                 return 1;
 542         case BLOCK_STATE_WRITE_FAILURE:
 543         case BLOCK_STATE_TRIM_FAILURE:
 544                 return 2;
 545         default:
 546                 /* Silence compile warning on some BSDs and have a return */
 547                 assert(0);
 548                 return -1;
 549         }
 550 }
 551
 552 static int compare_block_infos(const void *bs1, const void *bs2)
 553 {
 554         uint32_t block1 = *(uint32_t *)bs1;
 555         uint32_t block2 = *(uint32_t *)bs2;
 556         int state1 = BLOCK_INFO_STATE(block1);
 557         int state2 = BLOCK_INFO_STATE(block2);
 558         int bscat1 = block_state_category(state1);
 559         int bscat2 = block_state_category(state2);
 560         int cycles1 = BLOCK_INFO_TRIMS(block1);
 561         int cycles2 = BLOCK_INFO_TRIMS(block2);
 562
 563         if (bscat1 < bscat2)
 564                 return -1;
 565         if (bscat1 > bscat2)
 566                 return 1;
 567
 568         if (cycles1 < cycles2)
 569                 return -1;
 570         if (cycles1 > cycles2)
 571                 return 1;
 572
 573         if (state1 < state2)
 574                 return -1;
 575         if (state1 > state2)
 576                 return 1;
 577
 578         assert(block1 == block2);
 579         return 0;
 580 }
 581
 582 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
 583                                   fio_fp64_t *plist, unsigned int **percentiles,
 584                                   unsigned int *types)
 585 {
 586         int len = 0;
 587         int i, nr_uninit;
 588
 589         qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
 590
 591         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 592                 len++;
 593
 594         if (!len)
 595                 return 0;
 596
 597         /*
 598          * Sort the percentile list. Note that it may already be sorted if
 599          * we are using the default values, but since it's a short list this
 600          * isn't a worry. Also note that this does not work for NaN values.
 601          */
 602         if (len > 1)
 603                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 604
 605         nr_uninit = 0;
 606         /* Start only after the uninit entries end */
 607         for (nr_uninit = 0;
 608              nr_uninit < nr_block_infos
 609                 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
 610              nr_uninit ++)
 611                 ;
 612
 613         if (nr_uninit == nr_block_infos)
 614                 return 0;
 615
 616         *percentiles = calloc(len, sizeof(**percentiles));
 617
 618         for (i = 0; i < len; i++) {
 619                 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
 620                                 + nr_uninit;
 621                 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
 622         }
 623
 624         memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
 625         for (i = 0; i < nr_block_infos; i++)
 626                 types[BLOCK_INFO_STATE(block_infos[i])]++;
 627
 628         return len;
 629 }
 630
 631 static const char *block_state_names[] = {
 632         [BLOCK_STATE_UNINIT] = "unwritten",
 633         [BLOCK_STATE_TRIMMED] = "trimmed",
 634         [BLOCK_STATE_WRITTEN] = "written",
 635         [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
 636         [BLOCK_STATE_WRITE_FAILURE] = "write failure",
 637 };
 638
 639 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
 640                              fio_fp64_t *plist, struct buf_output *out)
 641 {
 642         int len, pos, i;
 643         unsigned int *percentiles = NULL;
 644         unsigned int block_state_counts[BLOCK_STATE_COUNT];
 645
 646         len = calc_block_percentiles(nr_block_infos, block_infos, plist,
 647                                      &percentiles, block_state_counts);
 648
 649         log_buf(out, "  block lifetime percentiles :\n   |");
 650         pos = 0;
 651         for (i = 0; i < len; i++) {
 652                 uint32_t block_info = percentiles[i];
 653 #define LINE_LENGTH     75
 654                 char str[LINE_LENGTH];
 655                 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
 656                                      plist[i].u.f, block_info,
 657                                      i == len - 1 ? '\n' : ',');
 658                 assert(strln < LINE_LENGTH);
 659                 if (pos + strln > LINE_LENGTH) {
 660                         pos = 0;
 661                         log_buf(out, "\n   |");
 662                 }
 663                 log_buf(out, "%s", str);
 664                 pos += strln;
 665 #undef LINE_LENGTH
 666         }
 667         if (percentiles)
 668                 free(percentiles);
 669
 670         log_buf(out, "        states               :");
 671         for (i = 0; i < BLOCK_STATE_COUNT; i++)
 672                 log_buf(out, " %s=%u%c",
 673                          block_state_names[i], block_state_counts[i],
 674                          i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
 675 }
 676
 677 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
 678 {
 679         char *p1, *p1alt, *p2;
 680         unsigned long long bw_mean, iops_mean;
 681         const int i2p = is_power_of_2(ts->kb_base);
 682
 683         if (!ts->ss_dur)
 684                 return;
 685
 686         bw_mean = steadystate_bw_mean(ts);
 687         iops_mean = steadystate_iops_mean(ts);
 688
 689         p1 = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, i2p, ts->unit_base);
 690         p1alt = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, !i2p, ts->unit_base);
 691         p2 = num2str(iops_mean, 4, 1, 0, N2S_NONE);
 692
 693         log_buf(out, "  steadystate  : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
 694                 ts->ss_state & __FIO_SS_ATTAINED ? "yes" : "no",
 695                 p1, p1alt, p2,
 696                 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
 697                 ts->ss_state & __FIO_SS_SLOPE ? " slope": " mean dev",
 698                 ts->ss_criterion.u.f,
 699                 ts->ss_state & __FIO_SS_PCT ? "%" : "");
 700
 701         free(p1);
 702         free(p1alt);
 703         free(p2);
 704 }
 705
 706 static void show_thread_status_normal(struct thread_stat *ts,
 707                                       struct group_run_stats *rs,
 708                                       struct buf_output *out)
 709 {
 710         double usr_cpu, sys_cpu;
 711         unsigned long runtime;
 712         double io_u_dist[FIO_IO_U_MAP_NR];
 713         time_t time_p;
 714         char time_buf[32];
 715
 716         if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
 717                 return;
 718
 719         memset(time_buf, 0, sizeof(time_buf));
 720
 721         time(&time_p);
 722         os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
 723
 724         if (!ts->error) {
 725                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
 726                                         ts->name, ts->groupid, ts->members,
 727                                         ts->error, (int) ts->pid, time_buf);
 728         } else {
 729                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
 730                                         ts->name, ts->groupid, ts->members,
 731                                         ts->error, ts->verror, (int) ts->pid,
 732                                         time_buf);
 733         }
 734
 735         if (strlen(ts->description))
 736                 log_buf(out, "  Description  : [%s]\n", ts->description);
 737
 738         if (ts->io_bytes[DDIR_READ])
 739                 show_ddir_status(rs, ts, DDIR_READ, out);
 740         if (ts->io_bytes[DDIR_WRITE])
 741                 show_ddir_status(rs, ts, DDIR_WRITE, out);
 742         if (ts->io_bytes[DDIR_TRIM])
 743                 show_ddir_status(rs, ts, DDIR_TRIM, out);
 744
 745         show_latencies(ts, out);
 746
 747         runtime = ts->total_run_time;
 748         if (runtime) {
 749                 double runt = (double) runtime;
 750
 751                 usr_cpu = (double) ts->usr_time * 100 / runt;
 752                 sys_cpu = (double) ts->sys_time * 100 / runt;
 753         } else {
 754                 usr_cpu = 0;
 755                 sys_cpu = 0;
 756         }
 757
 758         log_buf(out, "  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
 759                  " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
 760                         (unsigned long long) ts->ctx,
 761                         (unsigned long long) ts->majf,
 762                         (unsigned long long) ts->minf);
 763
 764         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
 765         log_buf(out, "  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
 766                  " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 767                                         io_u_dist[1], io_u_dist[2],
 768                                         io_u_dist[3], io_u_dist[4],
 769                                         io_u_dist[5], io_u_dist[6]);
 770
 771         stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
 772         log_buf(out, "     submit    : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 773                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 774                                         io_u_dist[1], io_u_dist[2],
 775                                         io_u_dist[3], io_u_dist[4],
 776                                         io_u_dist[5], io_u_dist[6]);
 777         stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
 778         log_buf(out, "     complete  : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 779                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 780                                         io_u_dist[1], io_u_dist[2],
 781                                         io_u_dist[3], io_u_dist[4],
 782                                         io_u_dist[5], io_u_dist[6]);
 783         log_buf(out, "     issued rwt: total=%llu,%llu,%llu,"
 784                                  " short=%llu,%llu,%llu,"
 785                                  " dropped=%llu,%llu,%llu\n",
 786                                         (unsigned long long) ts->total_io_u[0],
 787                                         (unsigned long long) ts->total_io_u[1],
 788                                         (unsigned long long) ts->total_io_u[2],
 789                                         (unsigned long long) ts->short_io_u[0],
 790                                         (unsigned long long) ts->short_io_u[1],
 791                                         (unsigned long long) ts->short_io_u[2],
 792                                         (unsigned long long) ts->drop_io_u[0],
 793                                         (unsigned long long) ts->drop_io_u[1],
 794                                         (unsigned long long) ts->drop_io_u[2]);
 795         if (ts->continue_on_error) {
 796                 log_buf(out, "     errors    : total=%llu, first_error=%d/<%s>\n",
 797                                         (unsigned long long)ts->total_err_count,
 798                                         ts->first_error,
 799                                         strerror(ts->first_error));
 800         }
 801         if (ts->latency_depth) {
 802                 log_buf(out, "     latency   : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
 803                                         (unsigned long long)ts->latency_target,
 804                                         (unsigned long long)ts->latency_window,
 805                                         ts->latency_percentile.u.f,
 806                                         ts->latency_depth);
 807         }
 808
 809         if (ts->nr_block_infos)
 810                 show_block_infos(ts->nr_block_infos, ts->block_infos,
 811                                   ts->percentile_list, out);
 812
 813         if (ts->ss_dur)
 814                 show_ss_normal(ts, out);
 815 }
 816
 817 static void show_ddir_status_terse(struct thread_stat *ts,
 818                                    struct group_run_stats *rs, int ddir,
 819                                    struct buf_output *out)
 820 {
 821         unsigned long min, max;
 822         unsigned long long bw, iops;
 823         unsigned int *ovals = NULL;
 824         double mean, dev;
 825         unsigned int len, minv, maxv;
 826         int i;
 827
 828         assert(ddir_rw(ddir));
 829
 830         iops = bw = 0;
 831         if (ts->runtime[ddir]) {
 832                 uint64_t runt = ts->runtime[ddir];
 833
 834                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
 835                 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
 836         }
 837
 838         log_buf(out, ";%llu;%llu;%llu;%llu",
 839                 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
 840                                         (unsigned long long) ts->runtime[ddir]);
 841
 842         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 843                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 844         else
 845                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 846
 847         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 848                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 849         else
 850                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 851
 852         if (ts->clat_percentiles) {
 853                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 854                                         ts->clat_stat[ddir].samples,
 855                                         ts->percentile_list, &ovals, &maxv,
 856                                         &minv);
 857         } else
 858                 len = 0;
 859
 860         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 861                 if (i >= len) {
 862                         log_buf(out, ";0%%=0");
 863                         continue;
 864                 }
 865                 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
 866         }
 867
 868         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 869                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 870         else
 871                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 872
 873         if (ovals)
 874                 free(ovals);
 875
 876         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 877                 double p_of_agg = 100.0;
 878
 879                 if (rs->agg[ddir]) {
 880                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 881                         if (p_of_agg > 100.0)
 882                                 p_of_agg = 100.0;
 883                 }
 884
 885                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
 886         } else
 887                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 888 }
 889
 890 static void add_ddir_status_json(struct thread_stat *ts,
 891                 struct group_run_stats *rs, int ddir, struct json_object *parent)
 892 {
 893         unsigned long min, max;
 894         unsigned long long bw;
 895         unsigned int *ovals = NULL;
 896         double mean, dev, iops;
 897         unsigned int len, minv, maxv;
 898         int i;
 899         const char *ddirname[] = {"read", "write", "trim"};
 900         struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
 901         char buf[120];
 902         double p_of_agg = 100.0;
 903
 904         assert(ddir_rw(ddir));
 905
 906         if (ts->unified_rw_rep && ddir != DDIR_READ)
 907                 return;
 908
 909         dir_object = json_create_object();
 910         json_object_add_value_object(parent,
 911                 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
 912
 913         bw = 0;
 914         iops = 0.0;
 915         if (ts->runtime[ddir]) {
 916                 uint64_t runt = ts->runtime[ddir];
 917
 918                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
 919                 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
 920         }
 921
 922         json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
 923         json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
 924         json_object_add_value_int(dir_object, "bw", bw);
 925         json_object_add_value_float(dir_object, "iops", iops);
 926         json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
 927         json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
 928         json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
 929         json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
 930
 931         if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
 932                 min = max = 0;
 933                 mean = dev = 0.0;
 934         }
 935         tmp_object = json_create_object();
 936         json_object_add_value_object(dir_object, "slat", tmp_object);
 937         json_object_add_value_int(tmp_object, "min", min);
 938         json_object_add_value_int(tmp_object, "max", max);
 939         json_object_add_value_float(tmp_object, "mean", mean);
 940         json_object_add_value_float(tmp_object, "stddev", dev);
 941
 942         if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
 943                 min = max = 0;
 944                 mean = dev = 0.0;
 945         }
 946         tmp_object = json_create_object();
 947         json_object_add_value_object(dir_object, "clat", tmp_object);
 948         json_object_add_value_int(tmp_object, "min", min);
 949         json_object_add_value_int(tmp_object, "max", max);
 950         json_object_add_value_float(tmp_object, "mean", mean);
 951         json_object_add_value_float(tmp_object, "stddev", dev);
 952
 953         if (ts->clat_percentiles) {
 954                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 955                                         ts->clat_stat[ddir].samples,
 956                                         ts->percentile_list, &ovals, &maxv,
 957                                         &minv);
 958         } else
 959                 len = 0;
 960
 961         percentile_object = json_create_object();
 962         json_object_add_value_object(tmp_object, "percentile", percentile_object);
 963         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 964                 if (i >= len) {
 965                         json_object_add_value_int(percentile_object, "0.00", 0);
 966                         continue;
 967                 }
 968                 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
 969                 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
 970         }
 971
 972         if (output_format & FIO_OUTPUT_JSON_PLUS) {
 973                 clat_bins_object = json_create_object();
 974                 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
 975                 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
 976                         if (ts->io_u_plat[ddir][i]) {
 977                                 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
 978                                 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
 979                         }
 980                 }
 981         }
 982
 983         if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
 984                 min = max = 0;
 985                 mean = dev = 0.0;
 986         }
 987         tmp_object = json_create_object();
 988         json_object_add_value_object(dir_object, "lat", tmp_object);
 989         json_object_add_value_int(tmp_object, "min", min);
 990         json_object_add_value_int(tmp_object, "max", max);
 991         json_object_add_value_float(tmp_object, "mean", mean);
 992         json_object_add_value_float(tmp_object, "stddev", dev);
 993         if (ovals)
 994                 free(ovals);
 995
 996         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 997                 if (rs->agg[ddir]) {
 998                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 999                         if (p_of_agg > 100.0)
1000                                 p_of_agg = 100.0;
1001                 }
1002         } else {
1003                 min = max = 0;
1004                 p_of_agg = mean = dev = 0.0;
1005         }
1006         json_object_add_value_int(dir_object, "bw_min", min);
1007         json_object_add_value_int(dir_object, "bw_max", max);
1008         json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1009         json_object_add_value_float(dir_object, "bw_mean", mean);
1010         json_object_add_value_float(dir_object, "bw_dev", dev);
1011 }
1012
1013 static void show_thread_status_terse_v2(struct thread_stat *ts,
1014                                         struct group_run_stats *rs,
1015                                         struct buf_output *out)
1016 {
1017         double io_u_dist[FIO_IO_U_MAP_NR];
1018         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1019         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1020         double usr_cpu, sys_cpu;
1021         int i;
1022
1023         /* General Info */
1024         log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1025         /* Log Read Status */
1026         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1027         /* Log Write Status */
1028         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1029         /* Log Trim Status */
1030         show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1031
1032         /* CPU Usage */
1033         if (ts->total_run_time) {
1034                 double runt = (double) ts->total_run_time;
1035
1036                 usr_cpu = (double) ts->usr_time * 100 / runt;
1037                 sys_cpu = (double) ts->sys_time * 100 / runt;
1038         } else {
1039                 usr_cpu = 0;
1040                 sys_cpu = 0;
1041         }
1042
1043         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1044                                                 (unsigned long long) ts->ctx,
1045                                                 (unsigned long long) ts->majf,
1046                                                 (unsigned long long) ts->minf);
1047
1048         /* Calc % distribution of IO depths, usecond, msecond latency */
1049         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1050         stat_calc_lat_u(ts, io_u_lat_u);
1051         stat_calc_lat_m(ts, io_u_lat_m);
1052
1053         /* Only show fixed 7 I/O depth levels*/
1054         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1055                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1056                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1057
1058         /* Microsecond latency */
1059         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1060                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1061         /* Millisecond latency */
1062         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1063                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1064         /* Additional output if continue_on_error set - default off*/
1065         if (ts->continue_on_error)
1066                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1067         log_buf(out, "\n");
1068
1069         /* Additional output if description is set */
1070         if (strlen(ts->description))
1071                 log_buf(out, ";%s", ts->description);
1072
1073         log_buf(out, "\n");
1074 }
1075
1076 static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1077                                            struct group_run_stats *rs, int ver,
1078                                            struct buf_output *out)
1079 {
1080         double io_u_dist[FIO_IO_U_MAP_NR];
1081         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1082         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1083         double usr_cpu, sys_cpu;
1084         int i;
1085
1086         /* General Info */
1087         log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1088                                         ts->name, ts->groupid, ts->error);
1089         /* Log Read Status */
1090         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1091         /* Log Write Status */
1092         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1093         /* Log Trim Status */
1094         if (ver == 4)
1095                 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1096
1097         /* CPU Usage */
1098         if (ts->total_run_time) {
1099                 double runt = (double) ts->total_run_time;
1100
1101                 usr_cpu = (double) ts->usr_time * 100 / runt;
1102                 sys_cpu = (double) ts->sys_time * 100 / runt;
1103         } else {
1104                 usr_cpu = 0;
1105                 sys_cpu = 0;
1106         }
1107
1108         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1109                                                 (unsigned long long) ts->ctx,
1110                                                 (unsigned long long) ts->majf,
1111                                                 (unsigned long long) ts->minf);
1112
1113         /* Calc % distribution of IO depths, usecond, msecond latency */
1114         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1115         stat_calc_lat_u(ts, io_u_lat_u);
1116         stat_calc_lat_m(ts, io_u_lat_m);
1117
1118         /* Only show fixed 7 I/O depth levels*/
1119         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1120                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1121                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1122
1123         /* Microsecond latency */
1124         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1125                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1126         /* Millisecond latency */
1127         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1128                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1129
1130         /* disk util stats, if any */
1131         show_disk_util(1, NULL, out);
1132
1133         /* Additional output if continue_on_error set - default off*/
1134         if (ts->continue_on_error)
1135                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1136
1137         /* Additional output if description is set */
1138         if (strlen(ts->description))
1139                 log_buf(out, ";%s", ts->description);
1140
1141         log_buf(out, "\n");
1142 }
1143
1144 static void json_add_job_opts(struct json_object *root, const char *name,
1145                               struct flist_head *opt_list, bool num_jobs)
1146 {
1147         struct json_object *dir_object;
1148         struct flist_head *entry;
1149         struct print_option *p;
1150
1151         if (flist_empty(opt_list))
1152                 return;
1153
1154         dir_object = json_create_object();
1155         json_object_add_value_object(root, name, dir_object);
1156
1157         flist_for_each(entry, opt_list) {
1158                 const char *pos = "";
1159
1160                 p = flist_entry(entry, struct print_option, list);
1161                 if (!num_jobs && !strcmp(p->name, "numjobs"))
1162                         continue;
1163                 if (p->value)
1164                         pos = p->value;
1165                 json_object_add_value_string(dir_object, p->name, pos);
1166         }
1167 }
1168
1169 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1170                                                    struct group_run_stats *rs,
1171                                                    struct flist_head *opt_list)
1172 {
1173         struct json_object *root, *tmp;
1174         struct jobs_eta *je;
1175         double io_u_dist[FIO_IO_U_MAP_NR];
1176         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1177         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1178         double usr_cpu, sys_cpu;
1179         int i;
1180         size_t size;
1181
1182         root = json_create_object();
1183         json_object_add_value_string(root, "jobname", ts->name);
1184         json_object_add_value_int(root, "groupid", ts->groupid);
1185         json_object_add_value_int(root, "error", ts->error);
1186
1187         /* ETA Info */
1188         je = get_jobs_eta(true, &size);
1189         if (je) {
1190                 json_object_add_value_int(root, "eta", je->eta_sec);
1191                 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1192         }
1193
1194         if (opt_list)
1195                 json_add_job_opts(root, "job options", opt_list, true);
1196
1197         add_ddir_status_json(ts, rs, DDIR_READ, root);
1198         add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1199         add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1200
1201         /* CPU Usage */
1202         if (ts->total_run_time) {
1203                 double runt = (double) ts->total_run_time;
1204
1205                 usr_cpu = (double) ts->usr_time * 100 / runt;
1206                 sys_cpu = (double) ts->sys_time * 100 / runt;
1207         } else {
1208                 usr_cpu = 0;
1209                 sys_cpu = 0;
1210         }
1211         json_object_add_value_float(root, "usr_cpu", usr_cpu);
1212         json_object_add_value_float(root, "sys_cpu", sys_cpu);
1213         json_object_add_value_int(root, "ctx", ts->ctx);
1214         json_object_add_value_int(root, "majf", ts->majf);
1215         json_object_add_value_int(root, "minf", ts->minf);
1216
1217
1218         /* Calc % distribution of IO depths, usecond, msecond latency */
1219         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1220         stat_calc_lat_u(ts, io_u_lat_u);
1221         stat_calc_lat_m(ts, io_u_lat_m);
1222
1223         tmp = json_create_object();
1224         json_object_add_value_object(root, "iodepth_level", tmp);
1225         /* Only show fixed 7 I/O depth levels*/
1226         for (i = 0; i < 7; i++) {
1227                 char name[20];
1228                 if (i < 6)
1229                         snprintf(name, 20, "%d", 1 << i);
1230                 else
1231                         snprintf(name, 20, ">=%d", 1 << i);
1232                 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1233         }
1234
1235         tmp = json_create_object();
1236         json_object_add_value_object(root, "latency_us", tmp);
1237         /* Microsecond latency */
1238         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1239                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1240                                  "250", "500", "750", "1000", };
1241                 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1242         }
1243         /* Millisecond latency */
1244         tmp = json_create_object();
1245         json_object_add_value_object(root, "latency_ms", tmp);
1246         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1247                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1248                                  "250", "500", "750", "1000", "2000",
1249                                  ">=2000", };
1250                 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1251         }
1252
1253         /* Additional output if continue_on_error set - default off*/
1254         if (ts->continue_on_error) {
1255                 json_object_add_value_int(root, "total_err", ts->total_err_count);
1256                 json_object_add_value_int(root, "first_error", ts->first_error);
1257         }
1258
1259         if (ts->latency_depth) {
1260                 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1261                 json_object_add_value_int(root, "latency_target", ts->latency_target);
1262                 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1263                 json_object_add_value_int(root, "latency_window", ts->latency_window);
1264         }
1265
1266         /* Additional output if description is set */
1267         if (strlen(ts->description))
1268                 json_object_add_value_string(root, "desc", ts->description);
1269
1270         if (ts->nr_block_infos) {
1271                 /* Block error histogram and types */
1272                 int len;
1273                 unsigned int *percentiles = NULL;
1274                 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1275
1276                 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1277                                              ts->percentile_list,
1278                                              &percentiles, block_state_counts);
1279
1280                 if (len) {
1281                         struct json_object *block, *percentile_object, *states;
1282                         int state;
1283                         block = json_create_object();
1284                         json_object_add_value_object(root, "block", block);
1285
1286                         percentile_object = json_create_object();
1287                         json_object_add_value_object(block, "percentiles",
1288                                                      percentile_object);
1289                         for (i = 0; i < len; i++) {
1290                                 char buf[20];
1291                                 snprintf(buf, sizeof(buf), "%f",
1292                                          ts->percentile_list[i].u.f);
1293                                 json_object_add_value_int(percentile_object,
1294                                                           (const char *)buf,
1295                                                           percentiles[i]);
1296                         }
1297
1298                         states = json_create_object();
1299                         json_object_add_value_object(block, "states", states);
1300                         for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1301                                 json_object_add_value_int(states,
1302                                         block_state_names[state],
1303                                         block_state_counts[state]);
1304                         }
1305                         free(percentiles);
1306                 }
1307         }
1308
1309         if (ts->ss_dur) {
1310                 struct json_object *data;
1311                 struct json_array *iops, *bw;
1312                 int i, j, k;
1313                 char ss_buf[64];
1314
1315                 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1316                         ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
1317                         ts->ss_state & __FIO_SS_SLOPE ? "_slope" : "",
1318                         (float) ts->ss_limit.u.f,
1319                         ts->ss_state & __FIO_SS_PCT ? "%" : "");
1320
1321                 tmp = json_create_object();
1322                 json_object_add_value_object(root, "steadystate", tmp);
1323                 json_object_add_value_string(tmp, "ss", ss_buf);
1324                 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1325                 json_object_add_value_int(tmp, "attained", (ts->ss_state & __FIO_SS_ATTAINED) > 0);
1326
1327                 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1328                         ts->ss_state & __FIO_SS_PCT ? "%" : "");
1329                 json_object_add_value_string(tmp, "criterion", ss_buf);
1330                 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1331                 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1332
1333                 data = json_create_object();
1334                 json_object_add_value_object(tmp, "data", data);
1335                 bw = json_create_array();
1336                 iops = json_create_array();
1337
1338                 /*
1339                 ** if ss was attained or the buffer is not full,
1340                 ** ss->head points to the first element in the list.
1341                 ** otherwise it actually points to the second element
1342                 ** in the list
1343                 */
1344                 if ((ts->ss_state & __FIO_SS_ATTAINED) || !(ts->ss_state & __FIO_SS_BUFFER_FULL))
1345                         j = ts->ss_head;
1346                 else
1347                         j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1348                 for (i = 0; i < ts->ss_dur; i++) {
1349                         k = (j + i) % ts->ss_dur;
1350                         json_array_add_value_int(bw, ts->ss_bw_data[k]);
1351                         json_array_add_value_int(iops, ts->ss_iops_data[k]);
1352                 }
1353                 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1354                 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1355                 json_object_add_value_array(data, "iops", iops);
1356                 json_object_add_value_array(data, "bw", bw);
1357         }
1358
1359         return root;
1360 }
1361
1362 static void show_thread_status_terse(struct thread_stat *ts,
1363                                      struct group_run_stats *rs,
1364                                      struct buf_output *out)
1365 {
1366         if (terse_version == 2)
1367                 show_thread_status_terse_v2(ts, rs, out);
1368         else if (terse_version == 3 || terse_version == 4)
1369                 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1370         else
1371                 log_err("fio: bad terse version!? %d\n", terse_version);
1372 }
1373
1374 struct json_object *show_thread_status(struct thread_stat *ts,
1375                                        struct group_run_stats *rs,
1376                                        struct flist_head *opt_list,
1377                                        struct buf_output *out)
1378 {
1379         struct json_object *ret = NULL;
1380
1381         if (output_format & FIO_OUTPUT_TERSE)
1382                 show_thread_status_terse(ts, rs,  out);
1383         if (output_format & FIO_OUTPUT_JSON)
1384                 ret = show_thread_status_json(ts, rs, opt_list);
1385         if (output_format & FIO_OUTPUT_NORMAL)
1386                 show_thread_status_normal(ts, rs,  out);
1387
1388         return ret;
1389 }
1390
1391 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1392 {
1393         double mean, S;
1394
1395         if (src->samples == 0)
1396                 return;
1397
1398         dst->min_val = min(dst->min_val, src->min_val);
1399         dst->max_val = max(dst->max_val, src->max_val);
1400
1401         /*
1402          * Compute new mean and S after the merge
1403          * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1404          *  #Parallel_algorithm>
1405          */
1406         if (first) {
1407                 mean = src->mean.u.f;
1408                 S = src->S.u.f;
1409         } else {
1410                 double delta = src->mean.u.f - dst->mean.u.f;
1411
1412                 mean = ((src->mean.u.f * src->samples) +
1413                         (dst->mean.u.f * dst->samples)) /
1414                         (dst->samples + src->samples);
1415
1416                 S =  src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1417                         (dst->samples * src->samples) /
1418                         (dst->samples + src->samples);
1419         }
1420
1421         dst->samples += src->samples;
1422         dst->mean.u.f = mean;
1423         dst->S.u.f = S;
1424 }
1425
1426 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1427 {
1428         int i;
1429
1430         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1431                 if (dst->max_run[i] < src->max_run[i])
1432                         dst->max_run[i] = src->max_run[i];
1433                 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1434                         dst->min_run[i] = src->min_run[i];
1435                 if (dst->max_bw[i] < src->max_bw[i])
1436                         dst->max_bw[i] = src->max_bw[i];
1437                 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1438                         dst->min_bw[i] = src->min_bw[i];
1439
1440                 dst->iobytes[i] += src->iobytes[i];
1441                 dst->agg[i] += src->agg[i];
1442         }
1443
1444         if (!dst->kb_base)
1445                 dst->kb_base = src->kb_base;
1446         if (!dst->unit_base)
1447                 dst->unit_base = src->unit_base;
1448 }
1449
1450 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1451                       bool first)
1452 {
1453         int l, k;
1454
1455         for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1456                 if (!dst->unified_rw_rep) {
1457                         sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1458                         sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1459                         sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1460                         sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1461
1462                         dst->io_bytes[l] += src->io_bytes[l];
1463
1464                         if (dst->runtime[l] < src->runtime[l])
1465                                 dst->runtime[l] = src->runtime[l];
1466                 } else {
1467                         sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1468                         sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1469                         sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1470                         sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1471
1472                         dst->io_bytes[0] += src->io_bytes[l];
1473
1474                         if (dst->runtime[0] < src->runtime[l])
1475                                 dst->runtime[0] = src->runtime[l];
1476
1477                         /*
1478                          * We're summing to the same destination, so override
1479                          * 'first' after the first iteration of the loop
1480                          */
1481                         first = false;
1482                 }
1483         }
1484
1485         dst->usr_time += src->usr_time;
1486         dst->sys_time += src->sys_time;
1487         dst->ctx += src->ctx;
1488         dst->majf += src->majf;
1489         dst->minf += src->minf;
1490
1491         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1492                 dst->io_u_map[k] += src->io_u_map[k];
1493         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1494                 dst->io_u_submit[k] += src->io_u_submit[k];
1495         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1496                 dst->io_u_complete[k] += src->io_u_complete[k];
1497         for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1498                 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1499         for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1500                 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1501
1502         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1503                 if (!dst->unified_rw_rep) {
1504                         dst->total_io_u[k] += src->total_io_u[k];
1505                         dst->short_io_u[k] += src->short_io_u[k];
1506                         dst->drop_io_u[k] += src->drop_io_u[k];
1507                 } else {
1508                         dst->total_io_u[0] += src->total_io_u[k];
1509                         dst->short_io_u[0] += src->short_io_u[k];
1510                         dst->drop_io_u[0] += src->drop_io_u[k];
1511                 }
1512         }
1513
1514         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1515                 int m;
1516
1517                 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1518                         if (!dst->unified_rw_rep)
1519                                 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1520                         else
1521                                 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1522                 }
1523         }
1524
1525         dst->total_run_time += src->total_run_time;
1526         dst->total_submit += src->total_submit;
1527         dst->total_complete += src->total_complete;
1528 }
1529
1530 void init_group_run_stat(struct group_run_stats *gs)
1531 {
1532         int i;
1533         memset(gs, 0, sizeof(*gs));
1534
1535         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1536                 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1537 }
1538
1539 void init_thread_stat(struct thread_stat *ts)
1540 {
1541         int j;
1542
1543         memset(ts, 0, sizeof(*ts));
1544
1545         for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1546                 ts->lat_stat[j].min_val = -1UL;
1547                 ts->clat_stat[j].min_val = -1UL;
1548                 ts->slat_stat[j].min_val = -1UL;
1549                 ts->bw_stat[j].min_val = -1UL;
1550         }
1551         ts->groupid = -1;
1552 }
1553
1554 void __show_run_stats(void)
1555 {
1556         struct group_run_stats *runstats, *rs;
1557         struct thread_data *td;
1558         struct thread_stat *threadstats, *ts;
1559         int i, j, k, nr_ts, last_ts, idx;
1560         int kb_base_warned = 0;
1561         int unit_base_warned = 0;
1562         struct json_object *root = NULL;
1563         struct json_array *array = NULL;
1564         struct buf_output output[FIO_OUTPUT_NR];
1565         struct flist_head **opt_lists;
1566
1567         runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1568
1569         for (i = 0; i < groupid + 1; i++)
1570                 init_group_run_stat(&runstats[i]);
1571
1572         /*
1573          * find out how many threads stats we need. if group reporting isn't
1574          * enabled, it's one-per-td.
1575          */
1576         nr_ts = 0;
1577         last_ts = -1;
1578         for_each_td(td, i) {
1579                 if (!td->o.group_reporting) {
1580                         nr_ts++;
1581                         continue;
1582                 }
1583                 if (last_ts == td->groupid)
1584                         continue;
1585                 if (!td->o.stats)
1586                         continue;
1587
1588                 last_ts = td->groupid;
1589                 nr_ts++;
1590         }
1591
1592         threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1593         opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1594
1595         for (i = 0; i < nr_ts; i++) {
1596                 init_thread_stat(&threadstats[i]);
1597                 opt_lists[i] = NULL;
1598         }
1599
1600         j = 0;
1601         last_ts = -1;
1602         idx = 0;
1603         for_each_td(td, i) {
1604                 if (!td->o.stats)
1605                         continue;
1606                 if (idx && (!td->o.group_reporting ||
1607                     (td->o.group_reporting && last_ts != td->groupid))) {
1608                         idx = 0;
1609                         j++;
1610                 }
1611
1612                 last_ts = td->groupid;
1613
1614                 ts = &threadstats[j];
1615
1616                 ts->clat_percentiles = td->o.clat_percentiles;
1617                 ts->percentile_precision = td->o.percentile_precision;
1618                 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1619                 opt_lists[j] = &td->opt_list;
1620
1621                 idx++;
1622                 ts->members++;
1623
1624                 if (ts->groupid == -1) {
1625                         /*
1626                          * These are per-group shared already
1627                          */
1628                         strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1629                         if (td->o.description)
1630                                 strncpy(ts->description, td->o.description,
1631                                                 FIO_JOBDESC_SIZE - 1);
1632                         else
1633                                 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1634
1635                         /*
1636                          * If multiple entries in this group, this is
1637                          * the first member.
1638                          */
1639                         ts->thread_number = td->thread_number;
1640                         ts->groupid = td->groupid;
1641
1642                         /*
1643                          * first pid in group, not very useful...
1644                          */
1645                         ts->pid = td->pid;
1646
1647                         ts->kb_base = td->o.kb_base;
1648                         ts->unit_base = td->o.unit_base;
1649                         ts->unified_rw_rep = td->o.unified_rw_rep;
1650                 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1651                         log_info("fio: kb_base differs for jobs in group, using"
1652                                  " %u as the base\n", ts->kb_base);
1653                         kb_base_warned = 1;
1654                 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1655                         log_info("fio: unit_base differs for jobs in group, using"
1656                                  " %u as the base\n", ts->unit_base);
1657                         unit_base_warned = 1;
1658                 }
1659
1660                 ts->continue_on_error = td->o.continue_on_error;
1661                 ts->total_err_count += td->total_err_count;
1662                 ts->first_error = td->first_error;
1663                 if (!ts->error) {
1664                         if (!td->error && td->o.continue_on_error &&
1665                             td->first_error) {
1666                                 ts->error = td->first_error;
1667                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1668                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1669                         } else  if (td->error) {
1670                                 ts->error = td->error;
1671                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1672                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1673                         }
1674                 }
1675
1676                 ts->latency_depth = td->latency_qd;
1677                 ts->latency_target = td->o.latency_target;
1678                 ts->latency_percentile = td->o.latency_percentile;
1679                 ts->latency_window = td->o.latency_window;
1680
1681                 ts->nr_block_infos = td->ts.nr_block_infos;
1682                 for (k = 0; k < ts->nr_block_infos; k++)
1683                         ts->block_infos[k] = td->ts.block_infos[k];
1684
1685                 sum_thread_stats(ts, &td->ts, idx == 1);
1686
1687                 if (td->o.ss_dur) {
1688                         ts->ss_state = td->ss.state;
1689                         ts->ss_dur = td->ss.dur;
1690                         ts->ss_head = td->ss.head;
1691                         ts->ss_bw_data = td->ss.bw_data;
1692                         ts->ss_iops_data = td->ss.iops_data;
1693                         ts->ss_limit.u.f = td->ss.limit;
1694                         ts->ss_slope.u.f = td->ss.slope;
1695                         ts->ss_deviation.u.f = td->ss.deviation;
1696                         ts->ss_criterion.u.f = td->ss.criterion;
1697                 }
1698                 else
1699                         ts->ss_dur = ts->ss_state = 0;
1700         }
1701
1702         for (i = 0; i < nr_ts; i++) {
1703                 unsigned long long bw;
1704
1705                 ts = &threadstats[i];
1706                 if (ts->groupid == -1)
1707                         continue;
1708                 rs = &runstats[ts->groupid];
1709                 rs->kb_base = ts->kb_base;
1710                 rs->unit_base = ts->unit_base;
1711                 rs->unified_rw_rep += ts->unified_rw_rep;
1712
1713                 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1714                         if (!ts->runtime[j])
1715                                 continue;
1716                         if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1717                                 rs->min_run[j] = ts->runtime[j];
1718                         if (ts->runtime[j] > rs->max_run[j])
1719                                 rs->max_run[j] = ts->runtime[j];
1720
1721                         bw = 0;
1722                         if (ts->runtime[j])
1723                                 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
1724                         if (bw < rs->min_bw[j])
1725                                 rs->min_bw[j] = bw;
1726                         if (bw > rs->max_bw[j])
1727                                 rs->max_bw[j] = bw;
1728
1729                         rs->iobytes[j] += ts->io_bytes[j];
1730                 }
1731         }
1732
1733         for (i = 0; i < groupid + 1; i++) {
1734                 int ddir;
1735
1736                 rs = &runstats[i];
1737
1738                 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1739                         if (rs->max_run[ddir])
1740                                 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
1741                                                 rs->max_run[ddir];
1742                 }
1743         }
1744
1745         for (i = 0; i < FIO_OUTPUT_NR; i++)
1746                 buf_output_init(&output[i]);
1747
1748         /*
1749          * don't overwrite last signal output
1750          */
1751         if (output_format & FIO_OUTPUT_NORMAL)
1752                 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1753         if (output_format & FIO_OUTPUT_JSON) {
1754                 struct thread_data *global;
1755                 char time_buf[32];
1756                 struct timeval now;
1757                 unsigned long long ms_since_epoch;
1758
1759                 gettimeofday(&now, NULL);
1760                 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1761                                  (unsigned long long)(now.tv_usec) / 1000;
1762
1763                 os_ctime_r((const time_t *) &now.tv_sec, time_buf,
1764                                 sizeof(time_buf));
1765                 if (time_buf[strlen(time_buf) - 1] == '\n')
1766                         time_buf[strlen(time_buf) - 1] = '\0';
1767
1768                 root = json_create_object();
1769                 json_object_add_value_string(root, "fio version", fio_version_string);
1770                 json_object_add_value_int(root, "timestamp", now.tv_sec);
1771                 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1772                 json_object_add_value_string(root, "time", time_buf);
1773                 global = get_global_options();
1774                 json_add_job_opts(root, "global options", &global->opt_list, false);
1775                 array = json_create_array();
1776                 json_object_add_value_array(root, "jobs", array);
1777         }
1778
1779         if (is_backend)
1780                 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1781
1782         for (i = 0; i < nr_ts; i++) {
1783                 ts = &threadstats[i];
1784                 rs = &runstats[ts->groupid];
1785
1786                 if (is_backend) {
1787                         fio_server_send_job_options(opt_lists[i], i);
1788                         fio_server_send_ts(ts, rs);
1789                 } else {
1790                         if (output_format & FIO_OUTPUT_TERSE)
1791                                 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1792                         if (output_format & FIO_OUTPUT_JSON) {
1793                                 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1794                                 json_array_add_value_object(array, tmp);
1795                         }
1796                         if (output_format & FIO_OUTPUT_NORMAL)
1797                                 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1798                 }
1799         }
1800         if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1801                 /* disk util stats, if any */
1802                 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1803
1804                 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1805
1806                 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1807                 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1808                 json_free_object(root);
1809         }
1810
1811         for (i = 0; i < groupid + 1; i++) {
1812                 rs = &runstats[i];
1813
1814                 rs->groupid = i;
1815                 if (is_backend)
1816                         fio_server_send_gs(rs);
1817                 else if (output_format & FIO_OUTPUT_NORMAL)
1818                         show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1819         }
1820
1821         if (is_backend)
1822                 fio_server_send_du();
1823         else if (output_format & FIO_OUTPUT_NORMAL) {
1824                 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1825                 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1826         }
1827
1828         for (i = 0; i < FIO_OUTPUT_NR; i++) {
1829                 struct buf_output *out = &output[i];
1830
1831                 log_info_buf(out->buf, out->buflen);
1832                 buf_output_free(out);
1833         }
1834
1835         log_info_flush();
1836         free(runstats);
1837         free(threadstats);
1838         free(opt_lists);
1839 }
1840
1841 void show_run_stats(void)
1842 {
1843         fio_mutex_down(stat_mutex);
1844         __show_run_stats();
1845         fio_mutex_up(stat_mutex);
1846 }
1847
1848 void __show_running_run_stats(void)
1849 {
1850         struct thread_data *td;
1851         unsigned long long *rt;
1852         struct timeval tv;
1853         int i;
1854
1855         fio_mutex_down(stat_mutex);
1856
1857         rt = malloc(thread_number * sizeof(unsigned long long));
1858         fio_gettime(&tv, NULL);
1859
1860         for_each_td(td, i) {
1861                 td->update_rusage = 1;
1862                 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1863                 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1864                 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1865                 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1866
1867                 rt[i] = mtime_since(&td->start, &tv);
1868                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1869                         td->ts.runtime[DDIR_READ] += rt[i];
1870                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1871                         td->ts.runtime[DDIR_WRITE] += rt[i];
1872                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1873                         td->ts.runtime[DDIR_TRIM] += rt[i];
1874         }
1875
1876         for_each_td(td, i) {
1877                 if (td->runstate >= TD_EXITED)
1878                         continue;
1879                 if (td->rusage_sem) {
1880                         td->update_rusage = 1;
1881                         fio_mutex_down(td->rusage_sem);
1882                 }
1883                 td->update_rusage = 0;
1884         }
1885
1886         __show_run_stats();
1887
1888         for_each_td(td, i) {
1889                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1890                         td->ts.runtime[DDIR_READ] -= rt[i];
1891                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1892                         td->ts.runtime[DDIR_WRITE] -= rt[i];
1893                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1894                         td->ts.runtime[DDIR_TRIM] -= rt[i];
1895         }
1896
1897         free(rt);
1898         fio_mutex_up(stat_mutex);
1899 }
1900
1901 static int status_interval_init;
1902 static struct timeval status_time;
1903 static int status_file_disabled;
1904
1905 #define FIO_STATUS_FILE         "fio-dump-status"
1906
1907 static int check_status_file(void)
1908 {
1909         struct stat sb;
1910         const char *temp_dir;
1911         char fio_status_file_path[PATH_MAX];
1912
1913         if (status_file_disabled)
1914                 return 0;
1915
1916         temp_dir = getenv("TMPDIR");
1917         if (temp_dir == NULL) {
1918                 temp_dir = getenv("TEMP");
1919                 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1920                         temp_dir = NULL;
1921         }
1922         if (temp_dir == NULL)
1923                 temp_dir = "/tmp";
1924
1925         snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1926
1927         if (stat(fio_status_file_path, &sb))
1928                 return 0;
1929
1930         if (unlink(fio_status_file_path) < 0) {
1931                 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1932                                                         strerror(errno));
1933                 log_err("fio: disabling status file updates\n");
1934                 status_file_disabled = 1;
1935         }
1936
1937         return 1;
1938 }
1939
1940 void check_for_running_stats(void)
1941 {
1942         if (status_interval) {
1943                 if (!status_interval_init) {
1944                         fio_gettime(&status_time, NULL);
1945                         status_interval_init = 1;
1946                 } else if (mtime_since_now(&status_time) >= status_interval) {
1947                         show_running_run_stats();
1948                         fio_gettime(&status_time, NULL);
1949                         return;
1950                 }
1951         }
1952         if (check_status_file()) {
1953                 show_running_run_stats();
1954                 return;
1955         }
1956 }
1957
1958 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1959 {
1960         double val = data;
1961         double delta;
1962
1963         if (data > is->max_val)
1964                 is->max_val = data;
1965         if (data < is->min_val)
1966                 is->min_val = data;
1967
1968         delta = val - is->mean.u.f;
1969         if (delta) {
1970                 is->mean.u.f += delta / (is->samples + 1.0);
1971                 is->S.u.f += delta * (val - is->mean.u.f);
1972         }
1973
1974         is->samples++;
1975 }
1976
1977 /*
1978  * Return a struct io_logs, which is added to the tail of the log
1979  * list for 'iolog'.
1980  */
1981 static struct io_logs *get_new_log(struct io_log *iolog)
1982 {
1983         size_t new_size, new_samples;
1984         struct io_logs *cur_log;
1985
1986         /*
1987          * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
1988          * forever
1989          */
1990         if (!iolog->cur_log_max)
1991                 new_samples = DEF_LOG_ENTRIES;
1992         else {
1993                 new_samples = iolog->cur_log_max * 2;
1994                 if (new_samples > MAX_LOG_ENTRIES)
1995                         new_samples = MAX_LOG_ENTRIES;
1996         }
1997
1998         new_size = new_samples * log_entry_sz(iolog);
1999
2000         cur_log = smalloc(sizeof(*cur_log));
2001         if (cur_log) {
2002                 INIT_FLIST_HEAD(&cur_log->list);
2003                 cur_log->log = malloc(new_size);
2004                 if (cur_log->log) {
2005                         cur_log->nr_samples = 0;
2006                         cur_log->max_samples = new_samples;
2007                         flist_add_tail(&cur_log->list, &iolog->io_logs);
2008                         iolog->cur_log_max = new_samples;
2009                         return cur_log;
2010                 }
2011                 sfree(cur_log);
2012         }
2013
2014         return NULL;
2015 }
2016
2017 /*
2018  * Add and return a new log chunk, or return current log if big enough
2019  */
2020 static struct io_logs *regrow_log(struct io_log *iolog)
2021 {
2022         struct io_logs *cur_log;
2023         int i;
2024
2025         if (!iolog || iolog->disabled)
2026                 goto disable;
2027
2028         cur_log = iolog_cur_log(iolog);
2029         if (!cur_log) {
2030                 cur_log = get_new_log(iolog);
2031                 if (!cur_log)
2032                         return NULL;
2033         }
2034
2035         if (cur_log->nr_samples < cur_log->max_samples)
2036                 return cur_log;
2037
2038         /*
2039          * No room for a new sample. If we're compressing on the fly, flush
2040          * out the current chunk
2041          */
2042         if (iolog->log_gz) {
2043                 if (iolog_cur_flush(iolog, cur_log)) {
2044                         log_err("fio: failed flushing iolog! Will stop logging.\n");
2045                         return NULL;
2046                 }
2047         }
2048
2049         /*
2050          * Get a new log array, and add to our list
2051          */
2052         cur_log = get_new_log(iolog);
2053         if (!cur_log) {
2054                 log_err("fio: failed extending iolog! Will stop logging.\n");
2055                 return NULL;
2056         }
2057
2058         if (!iolog->pending || !iolog->pending->nr_samples)
2059                 return cur_log;
2060
2061         /*
2062          * Flush pending items to new log
2063          */
2064         for (i = 0; i < iolog->pending->nr_samples; i++) {
2065                 struct io_sample *src, *dst;
2066
2067                 src = get_sample(iolog, iolog->pending, i);
2068                 dst = get_sample(iolog, cur_log, i);
2069                 memcpy(dst, src, log_entry_sz(iolog));
2070         }
2071         cur_log->nr_samples = iolog->pending->nr_samples;
2072
2073         iolog->pending->nr_samples = 0;
2074         return cur_log;
2075 disable:
2076         if (iolog)
2077                 iolog->disabled = true;
2078         return NULL;
2079 }
2080
2081 void regrow_logs(struct thread_data *td)
2082 {
2083         regrow_log(td->slat_log);
2084         regrow_log(td->clat_log);
2085         regrow_log(td->clat_hist_log);
2086         regrow_log(td->lat_log);
2087         regrow_log(td->bw_log);
2088         regrow_log(td->iops_log);
2089         td->flags &= ~TD_F_REGROW_LOGS;
2090 }
2091
2092 static struct io_logs *get_cur_log(struct io_log *iolog)
2093 {
2094         struct io_logs *cur_log;
2095
2096         cur_log = iolog_cur_log(iolog);
2097         if (!cur_log) {
2098                 cur_log = get_new_log(iolog);
2099                 if (!cur_log)
2100                         return NULL;
2101         }
2102
2103         if (cur_log->nr_samples < cur_log->max_samples)
2104                 return cur_log;
2105
2106         /*
2107          * Out of space. If we're in IO offload mode, or we're not doing
2108          * per unit logging (hence logging happens outside of the IO thread
2109          * as well), add a new log chunk inline. If we're doing inline
2110          * submissions, flag 'td' as needing a log regrow and we'll take
2111          * care of it on the submission side.
2112          */
2113         if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
2114             !per_unit_log(iolog))
2115                 return regrow_log(iolog);
2116
2117         iolog->td->flags |= TD_F_REGROW_LOGS;
2118         assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2119         return iolog->pending;
2120 }
2121
2122 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2123                              enum fio_ddir ddir, unsigned int bs,
2124                              unsigned long t, uint64_t offset)
2125 {
2126         struct io_logs *cur_log;
2127
2128         if (iolog->disabled)
2129                 return;
2130         if (flist_empty(&iolog->io_logs))
2131                 iolog->avg_last = t;
2132
2133         cur_log = get_cur_log(iolog);
2134         if (cur_log) {
2135                 struct io_sample *s;
2136
2137                 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2138
2139                 s->data = data;
2140                 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2141                 io_sample_set_ddir(iolog, s, ddir);
2142                 s->bs = bs;
2143
2144                 if (iolog->log_offset) {
2145                         struct io_sample_offset *so = (void *) s;
2146
2147                         so->offset = offset;
2148                 }
2149
2150                 cur_log->nr_samples++;
2151                 return;
2152         }
2153
2154         iolog->disabled = true;
2155 }
2156
2157 static inline void reset_io_stat(struct io_stat *ios)
2158 {
2159         ios->max_val = ios->min_val = ios->samples = 0;
2160         ios->mean.u.f = ios->S.u.f = 0;
2161 }
2162
2163 void reset_io_stats(struct thread_data *td)
2164 {
2165         struct thread_stat *ts = &td->ts;
2166         int i, j;
2167
2168         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2169                 reset_io_stat(&ts->clat_stat[i]);
2170                 reset_io_stat(&ts->slat_stat[i]);
2171                 reset_io_stat(&ts->lat_stat[i]);
2172                 reset_io_stat(&ts->bw_stat[i]);
2173                 reset_io_stat(&ts->iops_stat[i]);
2174
2175                 ts->io_bytes[i] = 0;
2176                 ts->runtime[i] = 0;
2177                 ts->total_io_u[i] = 0;
2178                 ts->short_io_u[i] = 0;
2179                 ts->drop_io_u[i] = 0;
2180
2181                 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
2182                         ts->io_u_plat[i][j] = 0;
2183         }
2184
2185         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2186                 ts->io_u_map[i] = 0;
2187                 ts->io_u_submit[i] = 0;
2188                 ts->io_u_complete[i] = 0;
2189         }
2190
2191         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
2192                 ts->io_u_lat_u[i] = 0;
2193         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
2194                 ts->io_u_lat_m[i] = 0;
2195
2196         ts->total_submit = 0;
2197         ts->total_complete = 0;
2198 }
2199
2200 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2201                               unsigned long elapsed, bool log_max)
2202 {
2203         /*
2204          * Note an entry in the log. Use the mean from the logged samples,
2205          * making sure to properly round up. Only write a log entry if we
2206          * had actual samples done.
2207          */
2208         if (iolog->avg_window[ddir].samples) {
2209                 union io_sample_data data;
2210
2211                 if (log_max)
2212                         data.val = iolog->avg_window[ddir].max_val;
2213                 else
2214                         data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2215
2216                 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2217         }
2218
2219         reset_io_stat(&iolog->avg_window[ddir]);
2220 }
2221
2222 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2223                              bool log_max)
2224 {
2225         int ddir;
2226
2227         for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2228                 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2229 }
2230
2231 static long add_log_sample(struct thread_data *td, struct io_log *iolog,
2232                            union io_sample_data data, enum fio_ddir ddir,
2233                            unsigned int bs, uint64_t offset)
2234 {
2235         unsigned long elapsed, this_window;
2236
2237         if (!ddir_rw(ddir))
2238                 return 0;
2239
2240         elapsed = mtime_since_now(&td->epoch);
2241
2242         /*
2243          * If no time averaging, just add the log sample.
2244          */
2245         if (!iolog->avg_msec) {
2246                 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2247                 return 0;
2248         }
2249
2250         /*
2251          * Add the sample. If the time period has passed, then
2252          * add that entry to the log and clear.
2253          */
2254         add_stat_sample(&iolog->avg_window[ddir], data.val);
2255
2256         /*
2257          * If period hasn't passed, adding the above sample is all we
2258          * need to do.
2259          */
2260         this_window = elapsed - iolog->avg_last;
2261         if (elapsed < iolog->avg_last)
2262                 return iolog->avg_last - elapsed;
2263         else if (this_window < iolog->avg_msec) {
2264                 int diff = iolog->avg_msec - this_window;
2265
2266                 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2267                         return diff;
2268         }
2269
2270         _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2271
2272         iolog->avg_last = elapsed - (this_window - iolog->avg_msec);
2273         return iolog->avg_msec;
2274 }
2275
2276 void finalize_logs(struct thread_data *td, bool unit_logs)
2277 {
2278         unsigned long elapsed;
2279
2280         elapsed = mtime_since_now(&td->epoch);
2281
2282         if (td->clat_log && unit_logs)
2283                 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2284         if (td->slat_log && unit_logs)
2285                 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2286         if (td->lat_log && unit_logs)
2287                 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2288         if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2289                 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2290         if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2291                 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2292 }
2293
2294 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned int bs)
2295 {
2296         struct io_log *iolog;
2297
2298         if (!ddir_rw(ddir))
2299                 return;
2300
2301         iolog = agg_io_log[ddir];
2302         __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2303 }
2304
2305 static void add_clat_percentile_sample(struct thread_stat *ts,
2306                                 unsigned long usec, enum fio_ddir ddir)
2307 {
2308         unsigned int idx = plat_val_to_idx(usec);
2309         assert(idx < FIO_IO_U_PLAT_NR);
2310
2311         ts->io_u_plat[ddir][idx]++;
2312 }
2313
2314 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2315                      unsigned long usec, unsigned int bs, uint64_t offset)
2316 {
2317         unsigned long elapsed, this_window;
2318         struct thread_stat *ts = &td->ts;
2319         struct io_log *iolog = td->clat_hist_log;
2320
2321         td_io_u_lock(td);
2322
2323         add_stat_sample(&ts->clat_stat[ddir], usec);
2324
2325         if (td->clat_log)
2326                 add_log_sample(td, td->clat_log, sample_val(usec), ddir, bs,
2327                                offset);
2328
2329         if (ts->clat_percentiles)
2330                 add_clat_percentile_sample(ts, usec, ddir);
2331
2332         if (iolog && iolog->hist_msec) {
2333                 struct io_hist *hw = &iolog->hist_window[ddir];
2334
2335                 hw->samples++;
2336                 elapsed = mtime_since_now(&td->epoch);
2337                 if (!hw->hist_last)
2338                         hw->hist_last = elapsed;
2339                 this_window = elapsed - hw->hist_last;
2340
2341                 if (this_window >= iolog->hist_msec) {
2342                         unsigned int *io_u_plat;
2343                         struct io_u_plat_entry *dst;
2344
2345                         /*
2346                          * Make a byte-for-byte copy of the latency histogram
2347                          * stored in td->ts.io_u_plat[ddir], recording it in a
2348                          * log sample. Note that the matching call to free() is
2349                          * located in iolog.c after printing this sample to the
2350                          * log file.
2351                          */
2352                         io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
2353                         dst = malloc(sizeof(struct io_u_plat_entry));
2354                         memcpy(&(dst->io_u_plat), io_u_plat,
2355                                 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2356                         flist_add(&dst->list, &hw->list);
2357                         __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2358                                                 elapsed, offset);
2359
2360                         /*
2361                          * Update the last time we recorded as being now, minus
2362                          * any drift in time we encountered before actually
2363                          * making the record.
2364                          */
2365                         hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2366                         hw->samples = 0;
2367                 }
2368         }
2369
2370         td_io_u_unlock(td);
2371 }
2372
2373 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2374                      unsigned long usec, unsigned int bs, uint64_t offset)
2375 {
2376         struct thread_stat *ts = &td->ts;
2377
2378         if (!ddir_rw(ddir))
2379                 return;
2380
2381         td_io_u_lock(td);
2382
2383         add_stat_sample(&ts->slat_stat[ddir], usec);
2384
2385         if (td->slat_log)
2386                 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2387
2388         td_io_u_unlock(td);
2389 }
2390
2391 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2392                     unsigned long usec, unsigned int bs, uint64_t offset)
2393 {
2394         struct thread_stat *ts = &td->ts;
2395
2396         if (!ddir_rw(ddir))
2397                 return;
2398
2399         td_io_u_lock(td);
2400
2401         add_stat_sample(&ts->lat_stat[ddir], usec);
2402
2403         if (td->lat_log)
2404                 add_log_sample(td, td->lat_log, sample_val(usec), ddir, bs,
2405                                offset);
2406
2407         td_io_u_unlock(td);
2408 }
2409
2410 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2411                    unsigned int bytes, unsigned long spent)
2412 {
2413         struct thread_stat *ts = &td->ts;
2414         unsigned long rate;
2415
2416         if (spent)
2417                 rate = bytes * 1000 / spent;
2418         else
2419                 rate = 0;
2420
2421         td_io_u_lock(td);
2422
2423         add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2424
2425         if (td->bw_log)
2426                 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2427                                bytes, io_u->offset);
2428
2429         td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2430         td_io_u_unlock(td);
2431 }
2432
2433 static int __add_samples(struct thread_data *td, struct timeval *parent_tv,
2434                          struct timeval *t, unsigned int avg_time,
2435                          uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
2436                          struct io_stat *stat, struct io_log *log,
2437                          bool is_kb)
2438 {
2439         unsigned long spent, rate;
2440         enum fio_ddir ddir;
2441         unsigned int next, next_log;
2442
2443         next_log = avg_time;
2444
2445         spent = mtime_since(parent_tv, t);
2446         if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
2447                 return avg_time - spent;
2448
2449         td_io_u_lock(td);
2450
2451         /*
2452          * Compute both read and write rates for the interval.
2453          */
2454         for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2455                 uint64_t delta;
2456
2457                 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
2458                 if (!delta)
2459                         continue; /* No entries for interval */
2460
2461                 if (spent) {
2462                         if (is_kb)
2463                                 rate = delta * 1000 / spent / 1024; /* KiB/s */
2464                         else
2465                                 rate = (delta * 1000) / spent;
2466                 } else
2467                         rate = 0;
2468
2469                 add_stat_sample(&stat[ddir], rate);
2470
2471                 if (log) {
2472                         unsigned int bs = 0;
2473
2474                         if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2475                                 bs = td->o.min_bs[ddir];
2476
2477                         next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0);
2478                         next_log = min(next_log, next);
2479                 }
2480
2481                 stat_io_bytes[ddir] = this_io_bytes[ddir];
2482         }
2483
2484         timeval_add_msec(parent_tv, avg_time);
2485
2486         td_io_u_unlock(td);
2487
2488         if (spent <= avg_time)
2489                 next = avg_time;
2490         else
2491                 next = avg_time - (1 + spent - avg_time);
2492
2493         return min(next, next_log);
2494 }
2495
2496 static int add_bw_samples(struct thread_data *td, struct timeval *t)
2497 {
2498         return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
2499                                 td->this_io_bytes, td->stat_io_bytes,
2500                                 td->ts.bw_stat, td->bw_log, true);
2501 }
2502
2503 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2504                      unsigned int bytes)
2505 {
2506         struct thread_stat *ts = &td->ts;
2507
2508         td_io_u_lock(td);
2509
2510         add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2511
2512         if (td->iops_log)
2513                 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2514                                bytes, io_u->offset);
2515
2516         td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2517         td_io_u_unlock(td);
2518 }
2519
2520 static int add_iops_samples(struct thread_data *td, struct timeval *t)
2521 {
2522         return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
2523                                 td->this_io_blocks, td->stat_io_blocks,
2524                                 td->ts.iops_stat, td->iops_log, false);
2525 }
2526
2527 /*
2528  * Returns msecs to next event
2529  */
2530 int calc_log_samples(void)
2531 {
2532         struct thread_data *td;
2533         unsigned int next = ~0U, tmp;
2534         struct timeval now;
2535         int i;
2536
2537         fio_gettime(&now, NULL);
2538
2539         for_each_td(td, i) {
2540                 if (!td->o.stats)
2541                         continue;
2542                 if (in_ramp_time(td) ||
2543                     !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2544                         next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2545                         continue;
2546                 }
2547                 if (!td->bw_log ||
2548                         (td->bw_log && !per_unit_log(td->bw_log))) {
2549                         tmp = add_bw_samples(td, &now);
2550                         if (tmp < next)
2551                                 next = tmp;
2552                 }
2553                 if (!td->iops_log ||
2554                         (td->iops_log && !per_unit_log(td->iops_log))) {
2555                         tmp = add_iops_samples(td, &now);
2556                         if (tmp < next)
2557                                 next = tmp;
2558                 }
2559         }
2560
2561         return next == ~0U ? 0 : next;
2562 }
2563
2564 void stat_init(void)
2565 {
2566         stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2567 }
2568
2569 void stat_exit(void)
2570 {
2571         /*
2572          * When we have the mutex, we know out-of-band access to it
2573          * have ended.
2574          */
2575         fio_mutex_down(stat_mutex);
2576         fio_mutex_remove(stat_mutex);
2577 }
2578
2579 /*
2580  * Called from signal handler. Wake up status thread.
2581  */
2582 void show_running_run_stats(void)
2583 {
2584         helper_do_stat();
2585 }
2586
2587 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2588 {
2589         /* Ignore io_u's which span multiple blocks--they will just get
2590          * inaccurate counts. */
2591         int idx = (io_u->offset - io_u->file->file_offset)
2592                         / td->o.bs[DDIR_TRIM];
2593         uint32_t *info = &td->ts.block_infos[idx];
2594         assert(idx < td->ts.nr_block_infos);
2595         return info;
2596 }