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 int 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 *p1, *p2, *p3, *p4;
 283         const char *str[] = { "   READ", "  WRITE" , "   TRIM"};
 284         int i;
 285
 286         log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
 287
 288         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 289                 const int i2p = is_power_of_2(rs->kb_base);
 290
 291                 if (!rs->max_run[i])
 292                         continue;
 293
 294                 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
 295                 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
 296                 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
 297                 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
 298
 299                 log_buf(out, "%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
 300                          " mint=%llumsec, maxt=%llumsec\n",
 301                                 rs->unified_rw_rep ? "  MIXED" : str[i],
 302                                 p1, p2, p3, p4,
 303                                 (unsigned long long) rs->min_run[i],
 304                                 (unsigned long long) rs->max_run[i]);
 305
 306                 free(p1);
 307                 free(p2);
 308                 free(p3);
 309                 free(p4);
 310         }
 311 }
 312
 313 void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
 314 {
 315         int i;
 316
 317         /*
 318          * Do depth distribution calculations
 319          */
 320         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
 321                 if (total) {
 322                         io_u_dist[i] = (double) map[i] / (double) total;
 323                         io_u_dist[i] *= 100.0;
 324                         if (io_u_dist[i] < 0.1 && map[i])
 325                                 io_u_dist[i] = 0.1;
 326                 } else
 327                         io_u_dist[i] = 0.0;
 328         }
 329 }
 330
 331 static void stat_calc_lat(struct thread_stat *ts, double *dst,
 332                           unsigned int *src, int nr)
 333 {
 334         unsigned long total = ddir_rw_sum(ts->total_io_u);
 335         int i;
 336
 337         /*
 338          * Do latency distribution calculations
 339          */
 340         for (i = 0; i < nr; i++) {
 341                 if (total) {
 342                         dst[i] = (double) src[i] / (double) total;
 343                         dst[i] *= 100.0;
 344                         if (dst[i] < 0.01 && src[i])
 345                                 dst[i] = 0.01;
 346                 } else
 347                         dst[i] = 0.0;
 348         }
 349 }
 350
 351 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
 352 {
 353         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
 354 }
 355
 356 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
 357 {
 358         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
 359 }
 360
 361 static void display_lat(const char *name, unsigned long min, unsigned long max,
 362                         double mean, double dev, struct buf_output *out)
 363 {
 364         const char *base = "(usec)";
 365         char *minp, *maxp;
 366
 367         if (usec_to_msec(&min, &max, &mean, &dev))
 368                 base = "(msec)";
 369
 370         minp = num2str(min, 6, 1, 0, 0);
 371         maxp = num2str(max, 6, 1, 0, 0);
 372
 373         log_buf(out, "    %s %s: min=%s, max=%s, avg=%5.02f,"
 374                  " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
 375
 376         free(minp);
 377         free(maxp);
 378 }
 379
 380 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 381                              int ddir, struct buf_output *out)
 382 {
 383         const char *str[] = { "read ", "write", "trim" };
 384         unsigned long min, max, runt;
 385         unsigned long long bw, iops;
 386         double mean, dev;
 387         char *io_p, *bw_p, *iops_p;
 388         int i2p;
 389
 390         assert(ddir_rw(ddir));
 391
 392         if (!ts->runtime[ddir])
 393                 return;
 394
 395         i2p = is_power_of_2(rs->kb_base);
 396         runt = ts->runtime[ddir];
 397
 398         bw = (1000 * ts->io_bytes[ddir]) / runt;
 399         io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
 400         bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
 401
 402         iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
 403         iops_p = num2str(iops, 6, 1, 0, 0);
 404
 405         log_buf(out, "  %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
 406                                 rs->unified_rw_rep ? "mixed" : str[ddir],
 407                                 io_p, bw_p, iops_p,
 408                                 (unsigned long long) ts->runtime[ddir]);
 409
 410         free(io_p);
 411         free(bw_p);
 412         free(iops_p);
 413
 414         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 415                 display_lat("slat", min, max, mean, dev, out);
 416         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 417                 display_lat("clat", min, max, mean, dev, out);
 418         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 419                 display_lat(" lat", min, max, mean, dev, out);
 420
 421         if (ts->clat_percentiles) {
 422                 show_clat_percentiles(ts->io_u_plat[ddir],
 423                                         ts->clat_stat[ddir].samples,
 424                                         ts->percentile_list,
 425                                         ts->percentile_precision, out);
 426         }
 427         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 428                 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
 429                 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
 430
 431                 if (rs->unit_base == 1) {
 432                         min *= 8.0;
 433                         max *= 8.0;
 434                         mean *= 8.0;
 435                         dev *= 8.0;
 436                 }
 437
 438                 if (rs->agg[ddir]) {
 439                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 440                         if (p_of_agg > 100.0)
 441                                 p_of_agg = 100.0;
 442                 }
 443
 444                 if (mean > fkb_base * fkb_base) {
 445                         min /= fkb_base;
 446                         max /= fkb_base;
 447                         mean /= fkb_base;
 448                         dev /= fkb_base;
 449                         bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
 450                 }
 451
 452                 log_buf(out, "    bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
 453                          " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
 454                                                         p_of_agg, mean, dev);
 455         }
 456 }
 457
 458 static int show_lat(double *io_u_lat, int nr, const char **ranges,
 459                     const char *msg, struct buf_output *out)
 460 {
 461         int new_line = 1, i, line = 0, shown = 0;
 462
 463         for (i = 0; i < nr; i++) {
 464                 if (io_u_lat[i] <= 0.0)
 465                         continue;
 466                 shown = 1;
 467                 if (new_line) {
 468                         if (line)
 469                                 log_buf(out, "\n");
 470                         log_buf(out, "    lat (%s) : ", msg);
 471                         new_line = 0;
 472                         line = 0;
 473                 }
 474                 if (line)
 475                         log_buf(out, ", ");
 476                 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
 477                 line++;
 478                 if (line == 5)
 479                         new_line = 1;
 480         }
 481
 482         if (shown)
 483                 log_buf(out, "\n");
 484
 485         return shown;
 486 }
 487
 488 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
 489 {
 490         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 491                                  "250=", "500=", "750=", "1000=", };
 492
 493         show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
 494 }
 495
 496 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
 497 {
 498         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
 499                                  "250=", "500=", "750=", "1000=", "2000=",
 500                                  ">=2000=", };
 501
 502         show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
 503 }
 504
 505 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
 506 {
 507         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 508         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
 509
 510         stat_calc_lat_u(ts, io_u_lat_u);
 511         stat_calc_lat_m(ts, io_u_lat_m);
 512
 513         show_lat_u(io_u_lat_u, out);
 514         show_lat_m(io_u_lat_m, out);
 515 }
 516
 517 static int block_state_category(int block_state)
 518 {
 519         switch (block_state) {
 520         case BLOCK_STATE_UNINIT:
 521                 return 0;
 522         case BLOCK_STATE_TRIMMED:
 523         case BLOCK_STATE_WRITTEN:
 524                 return 1;
 525         case BLOCK_STATE_WRITE_FAILURE:
 526         case BLOCK_STATE_TRIM_FAILURE:
 527                 return 2;
 528         default:
 529                 /* Silence compile warning on some BSDs and have a return */
 530                 assert(0);
 531                 return -1;
 532         }
 533 }
 534
 535 static int compare_block_infos(const void *bs1, const void *bs2)
 536 {
 537         uint32_t block1 = *(uint32_t *)bs1;
 538         uint32_t block2 = *(uint32_t *)bs2;
 539         int state1 = BLOCK_INFO_STATE(block1);
 540         int state2 = BLOCK_INFO_STATE(block2);
 541         int bscat1 = block_state_category(state1);
 542         int bscat2 = block_state_category(state2);
 543         int cycles1 = BLOCK_INFO_TRIMS(block1);
 544         int cycles2 = BLOCK_INFO_TRIMS(block2);
 545
 546         if (bscat1 < bscat2)
 547                 return -1;
 548         if (bscat1 > bscat2)
 549                 return 1;
 550
 551         if (cycles1 < cycles2)
 552                 return -1;
 553         if (cycles1 > cycles2)
 554                 return 1;
 555
 556         if (state1 < state2)
 557                 return -1;
 558         if (state1 > state2)
 559                 return 1;
 560
 561         assert(block1 == block2);
 562         return 0;
 563 }
 564
 565 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
 566                                   fio_fp64_t *plist, unsigned int **percentiles,
 567                                   unsigned int *types)
 568 {
 569         int len = 0;
 570         int i, nr_uninit;
 571
 572         qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
 573
 574         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 575                 len++;
 576
 577         if (!len)
 578                 return 0;
 579
 580         /*
 581          * Sort the percentile list. Note that it may already be sorted if
 582          * we are using the default values, but since it's a short list this
 583          * isn't a worry. Also note that this does not work for NaN values.
 584          */
 585         if (len > 1)
 586                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 587
 588         nr_uninit = 0;
 589         /* Start only after the uninit entries end */
 590         for (nr_uninit = 0;
 591              nr_uninit < nr_block_infos
 592                 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
 593              nr_uninit ++)
 594                 ;
 595
 596         if (nr_uninit == nr_block_infos)
 597                 return 0;
 598
 599         *percentiles = calloc(len, sizeof(**percentiles));
 600
 601         for (i = 0; i < len; i++) {
 602                 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
 603                                 + nr_uninit;
 604                 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
 605         }
 606
 607         memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
 608         for (i = 0; i < nr_block_infos; i++)
 609                 types[BLOCK_INFO_STATE(block_infos[i])]++;
 610
 611         return len;
 612 }
 613
 614 static const char *block_state_names[] = {
 615         [BLOCK_STATE_UNINIT] = "unwritten",
 616         [BLOCK_STATE_TRIMMED] = "trimmed",
 617         [BLOCK_STATE_WRITTEN] = "written",
 618         [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
 619         [BLOCK_STATE_WRITE_FAILURE] = "write failure",
 620 };
 621
 622 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
 623                              fio_fp64_t *plist, struct buf_output *out)
 624 {
 625         int len, pos, i;
 626         unsigned int *percentiles = NULL;
 627         unsigned int block_state_counts[BLOCK_STATE_COUNT];
 628
 629         len = calc_block_percentiles(nr_block_infos, block_infos, plist,
 630                                      &percentiles, block_state_counts);
 631
 632         log_buf(out, "  block lifetime percentiles :\n   |");
 633         pos = 0;
 634         for (i = 0; i < len; i++) {
 635                 uint32_t block_info = percentiles[i];
 636 #define LINE_LENGTH     75
 637                 char str[LINE_LENGTH];
 638                 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
 639                                      plist[i].u.f, block_info,
 640                                      i == len - 1 ? '\n' : ',');
 641                 assert(strln < LINE_LENGTH);
 642                 if (pos + strln > LINE_LENGTH) {
 643                         pos = 0;
 644                         log_buf(out, "\n   |");
 645                 }
 646                 log_buf(out, "%s", str);
 647                 pos += strln;
 648 #undef LINE_LENGTH
 649         }
 650         if (percentiles)
 651                 free(percentiles);
 652
 653         log_buf(out, "        states               :");
 654         for (i = 0; i < BLOCK_STATE_COUNT; i++)
 655                 log_buf(out, " %s=%u%c",
 656                          block_state_names[i], block_state_counts[i],
 657                          i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
 658 }
 659
 660 static void show_thread_status_normal(struct thread_stat *ts,
 661                                       struct group_run_stats *rs,
 662                                       struct buf_output *out)
 663 {
 664         double usr_cpu, sys_cpu;
 665         unsigned long runtime;
 666         double io_u_dist[FIO_IO_U_MAP_NR];
 667         time_t time_p;
 668         char time_buf[32];
 669
 670         if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
 671                 return;
 672
 673         memset(time_buf, 0, sizeof(time_buf));
 674
 675         time(&time_p);
 676         os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
 677
 678         if (!ts->error) {
 679                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
 680                                         ts->name, ts->groupid, ts->members,
 681                                         ts->error, (int) ts->pid, time_buf);
 682         } else {
 683                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
 684                                         ts->name, ts->groupid, ts->members,
 685                                         ts->error, ts->verror, (int) ts->pid,
 686                                         time_buf);
 687         }
 688
 689         if (strlen(ts->description))
 690                 log_buf(out, "  Description  : [%s]\n", ts->description);
 691
 692         if (ts->io_bytes[DDIR_READ])
 693                 show_ddir_status(rs, ts, DDIR_READ, out);
 694         if (ts->io_bytes[DDIR_WRITE])
 695                 show_ddir_status(rs, ts, DDIR_WRITE, out);
 696         if (ts->io_bytes[DDIR_TRIM])
 697                 show_ddir_status(rs, ts, DDIR_TRIM, out);
 698
 699         show_latencies(ts, out);
 700
 701         runtime = ts->total_run_time;
 702         if (runtime) {
 703                 double runt = (double) runtime;
 704
 705                 usr_cpu = (double) ts->usr_time * 100 / runt;
 706                 sys_cpu = (double) ts->sys_time * 100 / runt;
 707         } else {
 708                 usr_cpu = 0;
 709                 sys_cpu = 0;
 710         }
 711
 712         log_buf(out, "  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
 713                  " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
 714                         (unsigned long long) ts->ctx,
 715                         (unsigned long long) ts->majf,
 716                         (unsigned long long) ts->minf);
 717
 718         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
 719         log_buf(out, "  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
 720                  " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 721                                         io_u_dist[1], io_u_dist[2],
 722                                         io_u_dist[3], io_u_dist[4],
 723                                         io_u_dist[5], io_u_dist[6]);
 724
 725         stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
 726         log_buf(out, "     submit    : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 727                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 728                                         io_u_dist[1], io_u_dist[2],
 729                                         io_u_dist[3], io_u_dist[4],
 730                                         io_u_dist[5], io_u_dist[6]);
 731         stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
 732         log_buf(out, "     complete  : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 733                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 734                                         io_u_dist[1], io_u_dist[2],
 735                                         io_u_dist[3], io_u_dist[4],
 736                                         io_u_dist[5], io_u_dist[6]);
 737         log_buf(out, "     issued    : total=r=%llu/w=%llu/d=%llu,"
 738                                  " short=r=%llu/w=%llu/d=%llu,"
 739                                  " drop=r=%llu/w=%llu/d=%llu\n",
 740                                         (unsigned long long) ts->total_io_u[0],
 741                                         (unsigned long long) ts->total_io_u[1],
 742                                         (unsigned long long) ts->total_io_u[2],
 743                                         (unsigned long long) ts->short_io_u[0],
 744                                         (unsigned long long) ts->short_io_u[1],
 745                                         (unsigned long long) ts->short_io_u[2],
 746                                         (unsigned long long) ts->drop_io_u[0],
 747                                         (unsigned long long) ts->drop_io_u[1],
 748                                         (unsigned long long) ts->drop_io_u[2]);
 749         if (ts->continue_on_error) {
 750                 log_buf(out, "     errors    : total=%llu, first_error=%d/<%s>\n",
 751                                         (unsigned long long)ts->total_err_count,
 752                                         ts->first_error,
 753                                         strerror(ts->first_error));
 754         }
 755         if (ts->latency_depth) {
 756                 log_buf(out, "     latency   : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
 757                                         (unsigned long long)ts->latency_target,
 758                                         (unsigned long long)ts->latency_window,
 759                                         ts->latency_percentile.u.f,
 760                                         ts->latency_depth);
 761         }
 762
 763         if (ts->nr_block_infos)
 764                 show_block_infos(ts->nr_block_infos, ts->block_infos,
 765                                   ts->percentile_list, out);
 766 }
 767
 768 static void show_ddir_status_terse(struct thread_stat *ts,
 769                                    struct group_run_stats *rs, int ddir,
 770                                    struct buf_output *out)
 771 {
 772         unsigned long min, max;
 773         unsigned long long bw, iops;
 774         unsigned int *ovals = NULL;
 775         double mean, dev;
 776         unsigned int len, minv, maxv;
 777         int i;
 778
 779         assert(ddir_rw(ddir));
 780
 781         iops = bw = 0;
 782         if (ts->runtime[ddir]) {
 783                 uint64_t runt = ts->runtime[ddir];
 784
 785                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 786                 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
 787         }
 788
 789         log_buf(out, ";%llu;%llu;%llu;%llu",
 790                 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
 791                                         (unsigned long long) ts->runtime[ddir]);
 792
 793         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 794                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 795         else
 796                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 797
 798         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 799                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 800         else
 801                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 802
 803         if (ts->clat_percentiles) {
 804                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 805                                         ts->clat_stat[ddir].samples,
 806                                         ts->percentile_list, &ovals, &maxv,
 807                                         &minv);
 808         } else
 809                 len = 0;
 810
 811         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 812                 if (i >= len) {
 813                         log_buf(out, ";0%%=0");
 814                         continue;
 815                 }
 816                 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
 817         }
 818
 819         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 820                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 821         else
 822                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 823
 824         if (ovals)
 825                 free(ovals);
 826
 827         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 828                 double p_of_agg = 100.0;
 829
 830                 if (rs->agg[ddir]) {
 831                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 832                         if (p_of_agg > 100.0)
 833                                 p_of_agg = 100.0;
 834                 }
 835
 836                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
 837         } else
 838                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 839 }
 840
 841 static void add_ddir_status_json(struct thread_stat *ts,
 842                 struct group_run_stats *rs, int ddir, struct json_object *parent)
 843 {
 844         unsigned long min, max;
 845         unsigned long long bw;
 846         unsigned int *ovals = NULL;
 847         double mean, dev, iops;
 848         unsigned int len, minv, maxv;
 849         int i;
 850         const char *ddirname[] = {"read", "write", "trim"};
 851         struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
 852         char buf[120];
 853         double p_of_agg = 100.0;
 854
 855         assert(ddir_rw(ddir));
 856
 857         if (ts->unified_rw_rep && ddir != DDIR_READ)
 858                 return;
 859
 860         dir_object = json_create_object();
 861         json_object_add_value_object(parent,
 862                 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
 863
 864         bw = 0;
 865         iops = 0.0;
 866         if (ts->runtime[ddir]) {
 867                 uint64_t runt = ts->runtime[ddir];
 868
 869                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 870                 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
 871         }
 872
 873         json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
 874         json_object_add_value_int(dir_object, "bw", bw);
 875         json_object_add_value_float(dir_object, "iops", iops);
 876         json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
 877         json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
 878         json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
 879         json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
 880
 881         if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
 882                 min = max = 0;
 883                 mean = dev = 0.0;
 884         }
 885         tmp_object = json_create_object();
 886         json_object_add_value_object(dir_object, "slat", tmp_object);
 887         json_object_add_value_int(tmp_object, "min", min);
 888         json_object_add_value_int(tmp_object, "max", max);
 889         json_object_add_value_float(tmp_object, "mean", mean);
 890         json_object_add_value_float(tmp_object, "stddev", dev);
 891
 892         if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
 893                 min = max = 0;
 894                 mean = dev = 0.0;
 895         }
 896         tmp_object = json_create_object();
 897         json_object_add_value_object(dir_object, "clat", tmp_object);
 898         json_object_add_value_int(tmp_object, "min", min);
 899         json_object_add_value_int(tmp_object, "max", max);
 900         json_object_add_value_float(tmp_object, "mean", mean);
 901         json_object_add_value_float(tmp_object, "stddev", dev);
 902
 903         if (ts->clat_percentiles) {
 904                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 905                                         ts->clat_stat[ddir].samples,
 906                                         ts->percentile_list, &ovals, &maxv,
 907                                         &minv);
 908         } else
 909                 len = 0;
 910
 911         percentile_object = json_create_object();
 912         json_object_add_value_object(tmp_object, "percentile", percentile_object);
 913         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 914                 if (i >= len) {
 915                         json_object_add_value_int(percentile_object, "0.00", 0);
 916                         continue;
 917                 }
 918                 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
 919                 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
 920         }
 921
 922         if (output_format & FIO_OUTPUT_JSON_PLUS) {
 923                 clat_bins_object = json_create_object();
 924                 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
 925                 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
 926                         snprintf(buf, sizeof(buf), "%d", i);
 927                         json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
 928                 }
 929                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_BITS", FIO_IO_U_PLAT_BITS);
 930                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_VAL", FIO_IO_U_PLAT_VAL);
 931                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_NR", FIO_IO_U_PLAT_NR);
 932         }
 933
 934         if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
 935                 min = max = 0;
 936                 mean = dev = 0.0;
 937         }
 938         tmp_object = json_create_object();
 939         json_object_add_value_object(dir_object, "lat", tmp_object);
 940         json_object_add_value_int(tmp_object, "min", min);
 941         json_object_add_value_int(tmp_object, "max", max);
 942         json_object_add_value_float(tmp_object, "mean", mean);
 943         json_object_add_value_float(tmp_object, "stddev", dev);
 944         if (ovals)
 945                 free(ovals);
 946
 947         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 948                 if (rs->agg[ddir]) {
 949                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 950                         if (p_of_agg > 100.0)
 951                                 p_of_agg = 100.0;
 952                 }
 953         } else {
 954                 min = max = 0;
 955                 p_of_agg = mean = dev = 0.0;
 956         }
 957         json_object_add_value_int(dir_object, "bw_min", min);
 958         json_object_add_value_int(dir_object, "bw_max", max);
 959         json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
 960         json_object_add_value_float(dir_object, "bw_mean", mean);
 961         json_object_add_value_float(dir_object, "bw_dev", dev);
 962 }
 963
 964 static void show_thread_status_terse_v2(struct thread_stat *ts,
 965                                         struct group_run_stats *rs,
 966                                         struct buf_output *out)
 967 {
 968         double io_u_dist[FIO_IO_U_MAP_NR];
 969         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
 970         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
 971         double usr_cpu, sys_cpu;
 972         int i;
 973
 974         /* General Info */
 975         log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
 976         /* Log Read Status */
 977         show_ddir_status_terse(ts, rs, DDIR_READ, out);
 978         /* Log Write Status */
 979         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
 980         /* Log Trim Status */
 981         show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
 982
 983         /* CPU Usage */
 984         if (ts->total_run_time) {
 985                 double runt = (double) ts->total_run_time;
 986
 987                 usr_cpu = (double) ts->usr_time * 100 / runt;
 988                 sys_cpu = (double) ts->sys_time * 100 / runt;
 989         } else {
 990                 usr_cpu = 0;
 991                 sys_cpu = 0;
 992         }
 993
 994         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
 995                                                 (unsigned long long) ts->ctx,
 996                                                 (unsigned long long) ts->majf,
 997                                                 (unsigned long long) ts->minf);
 998
 999         /* Calc % distribution of IO depths, usecond, msecond latency */
1000         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1001         stat_calc_lat_u(ts, io_u_lat_u);
1002         stat_calc_lat_m(ts, io_u_lat_m);
1003
1004         /* Only show fixed 7 I/O depth levels*/
1005         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1006                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1007                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1008
1009         /* Microsecond latency */
1010         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1011                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1012         /* Millisecond latency */
1013         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1014                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1015         /* Additional output if continue_on_error set - default off*/
1016         if (ts->continue_on_error)
1017                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1018         log_buf(out, "\n");
1019
1020         /* Additional output if description is set */
1021         if (strlen(ts->description))
1022                 log_buf(out, ";%s", ts->description);
1023
1024         log_buf(out, "\n");
1025 }
1026
1027 static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1028                                            struct group_run_stats *rs, int ver,
1029                                            struct buf_output *out)
1030 {
1031         double io_u_dist[FIO_IO_U_MAP_NR];
1032         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1033         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1034         double usr_cpu, sys_cpu;
1035         int i;
1036
1037         /* General Info */
1038         log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1039                                         ts->name, ts->groupid, ts->error);
1040         /* Log Read Status */
1041         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1042         /* Log Write Status */
1043         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1044         /* Log Trim Status */
1045         if (ver == 4)
1046                 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1047
1048         /* CPU Usage */
1049         if (ts->total_run_time) {
1050                 double runt = (double) ts->total_run_time;
1051
1052                 usr_cpu = (double) ts->usr_time * 100 / runt;
1053                 sys_cpu = (double) ts->sys_time * 100 / runt;
1054         } else {
1055                 usr_cpu = 0;
1056                 sys_cpu = 0;
1057         }
1058
1059         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1060                                                 (unsigned long long) ts->ctx,
1061                                                 (unsigned long long) ts->majf,
1062                                                 (unsigned long long) ts->minf);
1063
1064         /* Calc % distribution of IO depths, usecond, msecond latency */
1065         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1066         stat_calc_lat_u(ts, io_u_lat_u);
1067         stat_calc_lat_m(ts, io_u_lat_m);
1068
1069         /* Only show fixed 7 I/O depth levels*/
1070         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1071                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1072                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1073
1074         /* Microsecond latency */
1075         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1076                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1077         /* Millisecond latency */
1078         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1079                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1080
1081         /* disk util stats, if any */
1082         show_disk_util(1, NULL, out);
1083
1084         /* Additional output if continue_on_error set - default off*/
1085         if (ts->continue_on_error)
1086                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1087
1088         /* Additional output if description is set */
1089         if (strlen(ts->description))
1090                 log_buf(out, ";%s", ts->description);
1091
1092         log_buf(out, "\n");
1093 }
1094
1095 static void json_add_job_opts(struct json_object *root, const char *name,
1096                               struct flist_head *opt_list, bool num_jobs)
1097 {
1098         struct json_object *dir_object;
1099         struct flist_head *entry;
1100         struct print_option *p;
1101
1102         if (flist_empty(opt_list))
1103                 return;
1104
1105         dir_object = json_create_object();
1106         json_object_add_value_object(root, name, dir_object);
1107
1108         flist_for_each(entry, opt_list) {
1109                 const char *pos = "";
1110
1111                 p = flist_entry(entry, struct print_option, list);
1112                 if (!num_jobs && !strcmp(p->name, "numjobs"))
1113                         continue;
1114                 if (p->value)
1115                         pos = p->value;
1116                 json_object_add_value_string(dir_object, p->name, pos);
1117         }
1118 }
1119
1120 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1121                                                    struct group_run_stats *rs,
1122                                                    struct flist_head *opt_list)
1123 {
1124         struct json_object *root, *tmp;
1125         struct jobs_eta *je;
1126         double io_u_dist[FIO_IO_U_MAP_NR];
1127         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1128         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1129         double usr_cpu, sys_cpu;
1130         int i;
1131         size_t size;
1132
1133         root = json_create_object();
1134         json_object_add_value_string(root, "jobname", ts->name);
1135         json_object_add_value_int(root, "groupid", ts->groupid);
1136         json_object_add_value_int(root, "error", ts->error);
1137
1138         /* ETA Info */
1139         je = get_jobs_eta(true, &size);
1140         if (je) {
1141                 json_object_add_value_int(root, "eta", je->eta_sec);
1142                 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1143         }
1144
1145         if (opt_list)
1146                 json_add_job_opts(root, "job options", opt_list, true);
1147
1148         add_ddir_status_json(ts, rs, DDIR_READ, root);
1149         add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1150         add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1151
1152         /* CPU Usage */
1153         if (ts->total_run_time) {
1154                 double runt = (double) ts->total_run_time;
1155
1156                 usr_cpu = (double) ts->usr_time * 100 / runt;
1157                 sys_cpu = (double) ts->sys_time * 100 / runt;
1158         } else {
1159                 usr_cpu = 0;
1160                 sys_cpu = 0;
1161         }
1162         json_object_add_value_float(root, "usr_cpu", usr_cpu);
1163         json_object_add_value_float(root, "sys_cpu", sys_cpu);
1164         json_object_add_value_int(root, "ctx", ts->ctx);
1165         json_object_add_value_int(root, "majf", ts->majf);
1166         json_object_add_value_int(root, "minf", ts->minf);
1167
1168
1169         /* Calc % distribution of IO depths, usecond, msecond latency */
1170         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1171         stat_calc_lat_u(ts, io_u_lat_u);
1172         stat_calc_lat_m(ts, io_u_lat_m);
1173
1174         tmp = json_create_object();
1175         json_object_add_value_object(root, "iodepth_level", tmp);
1176         /* Only show fixed 7 I/O depth levels*/
1177         for (i = 0; i < 7; i++) {
1178                 char name[20];
1179                 if (i < 6)
1180                         snprintf(name, 20, "%d", 1 << i);
1181                 else
1182                         snprintf(name, 20, ">=%d", 1 << i);
1183                 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1184         }
1185
1186         tmp = json_create_object();
1187         json_object_add_value_object(root, "latency_us", tmp);
1188         /* Microsecond latency */
1189         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1190                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1191                                  "250", "500", "750", "1000", };
1192                 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1193         }
1194         /* Millisecond latency */
1195         tmp = json_create_object();
1196         json_object_add_value_object(root, "latency_ms", tmp);
1197         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1198                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1199                                  "250", "500", "750", "1000", "2000",
1200                                  ">=2000", };
1201                 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1202         }
1203
1204         /* Additional output if continue_on_error set - default off*/
1205         if (ts->continue_on_error) {
1206                 json_object_add_value_int(root, "total_err", ts->total_err_count);
1207                 json_object_add_value_int(root, "first_error", ts->first_error);
1208         }
1209
1210         if (ts->latency_depth) {
1211                 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1212                 json_object_add_value_int(root, "latency_target", ts->latency_target);
1213                 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1214                 json_object_add_value_int(root, "latency_window", ts->latency_window);
1215         }
1216
1217         /* Additional output if description is set */
1218         if (strlen(ts->description))
1219                 json_object_add_value_string(root, "desc", ts->description);
1220
1221         if (ts->nr_block_infos) {
1222                 /* Block error histogram and types */
1223                 int len;
1224                 unsigned int *percentiles = NULL;
1225                 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1226
1227                 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1228                                              ts->percentile_list,
1229                                              &percentiles, block_state_counts);
1230
1231                 if (len) {
1232                         struct json_object *block, *percentile_object, *states;
1233                         int state;
1234                         block = json_create_object();
1235                         json_object_add_value_object(root, "block", block);
1236
1237                         percentile_object = json_create_object();
1238                         json_object_add_value_object(block, "percentiles",
1239                                                      percentile_object);
1240                         for (i = 0; i < len; i++) {
1241                                 char buf[20];
1242                                 snprintf(buf, sizeof(buf), "%f",
1243                                          ts->percentile_list[i].u.f);
1244                                 json_object_add_value_int(percentile_object,
1245                                                           (const char *)buf,
1246                                                           percentiles[i]);
1247                         }
1248
1249                         states = json_create_object();
1250                         json_object_add_value_object(block, "states", states);
1251                         for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1252                                 json_object_add_value_int(states,
1253                                         block_state_names[state],
1254                                         block_state_counts[state]);
1255                         }
1256                         free(percentiles);
1257                 }
1258         }
1259
1260         return root;
1261 }
1262
1263 static void show_thread_status_terse(struct thread_stat *ts,
1264                                      struct group_run_stats *rs,
1265                                      struct buf_output *out)
1266 {
1267         if (terse_version == 2)
1268                 show_thread_status_terse_v2(ts, rs, out);
1269         else if (terse_version == 3 || terse_version == 4)
1270                 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1271         else
1272                 log_err("fio: bad terse version!? %d\n", terse_version);
1273 }
1274
1275 struct json_object *show_thread_status(struct thread_stat *ts,
1276                                        struct group_run_stats *rs,
1277                                        struct flist_head *opt_list,
1278                                        struct buf_output *out)
1279 {
1280         struct json_object *ret = NULL;
1281
1282         if (output_format & FIO_OUTPUT_TERSE)
1283                 show_thread_status_terse(ts, rs,  out);
1284         if (output_format & FIO_OUTPUT_JSON)
1285                 ret = show_thread_status_json(ts, rs, opt_list);
1286         if (output_format & FIO_OUTPUT_NORMAL)
1287                 show_thread_status_normal(ts, rs,  out);
1288
1289         return ret;
1290 }
1291
1292 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1293 {
1294         double mean, S;
1295
1296         if (src->samples == 0)
1297                 return;
1298
1299         dst->min_val = min(dst->min_val, src->min_val);
1300         dst->max_val = max(dst->max_val, src->max_val);
1301
1302         /*
1303          * Compute new mean and S after the merge
1304          * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1305          *  #Parallel_algorithm>
1306          */
1307         if (first) {
1308                 mean = src->mean.u.f;
1309                 S = src->S.u.f;
1310         } else {
1311                 double delta = src->mean.u.f - dst->mean.u.f;
1312
1313                 mean = ((src->mean.u.f * src->samples) +
1314                         (dst->mean.u.f * dst->samples)) /
1315                         (dst->samples + src->samples);
1316
1317                 S =  src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1318                         (dst->samples * src->samples) /
1319                         (dst->samples + src->samples);
1320         }
1321
1322         dst->samples += src->samples;
1323         dst->mean.u.f = mean;
1324         dst->S.u.f = S;
1325 }
1326
1327 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1328 {
1329         int i;
1330
1331         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1332                 if (dst->max_run[i] < src->max_run[i])
1333                         dst->max_run[i] = src->max_run[i];
1334                 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1335                         dst->min_run[i] = src->min_run[i];
1336                 if (dst->max_bw[i] < src->max_bw[i])
1337                         dst->max_bw[i] = src->max_bw[i];
1338                 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1339                         dst->min_bw[i] = src->min_bw[i];
1340
1341                 dst->io_kb[i] += src->io_kb[i];
1342                 dst->agg[i] += src->agg[i];
1343         }
1344
1345         if (!dst->kb_base)
1346                 dst->kb_base = src->kb_base;
1347         if (!dst->unit_base)
1348                 dst->unit_base = src->unit_base;
1349 }
1350
1351 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1352                       bool first)
1353 {
1354         int l, k;
1355
1356         for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1357                 if (!dst->unified_rw_rep) {
1358                         sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1359                         sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1360                         sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1361                         sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1362
1363                         dst->io_bytes[l] += src->io_bytes[l];
1364
1365                         if (dst->runtime[l] < src->runtime[l])
1366                                 dst->runtime[l] = src->runtime[l];
1367                 } else {
1368                         sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1369                         sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1370                         sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1371                         sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1372
1373                         dst->io_bytes[0] += src->io_bytes[l];
1374
1375                         if (dst->runtime[0] < src->runtime[l])
1376                                 dst->runtime[0] = src->runtime[l];
1377
1378                         /*
1379                          * We're summing to the same destination, so override
1380                          * 'first' after the first iteration of the loop
1381                          */
1382                         first = false;
1383                 }
1384         }
1385
1386         dst->usr_time += src->usr_time;
1387         dst->sys_time += src->sys_time;
1388         dst->ctx += src->ctx;
1389         dst->majf += src->majf;
1390         dst->minf += src->minf;
1391
1392         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1393                 dst->io_u_map[k] += src->io_u_map[k];
1394         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1395                 dst->io_u_submit[k] += src->io_u_submit[k];
1396         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1397                 dst->io_u_complete[k] += src->io_u_complete[k];
1398         for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1399                 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1400         for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1401                 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1402
1403         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1404                 if (!dst->unified_rw_rep) {
1405                         dst->total_io_u[k] += src->total_io_u[k];
1406                         dst->short_io_u[k] += src->short_io_u[k];
1407                         dst->drop_io_u[k] += src->drop_io_u[k];
1408                 } else {
1409                         dst->total_io_u[0] += src->total_io_u[k];
1410                         dst->short_io_u[0] += src->short_io_u[k];
1411                         dst->drop_io_u[0] += src->drop_io_u[k];
1412                 }
1413         }
1414
1415         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1416                 int m;
1417
1418                 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1419                         if (!dst->unified_rw_rep)
1420                                 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1421                         else
1422                                 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1423                 }
1424         }
1425
1426         dst->total_run_time += src->total_run_time;
1427         dst->total_submit += src->total_submit;
1428         dst->total_complete += src->total_complete;
1429 }
1430
1431 void init_group_run_stat(struct group_run_stats *gs)
1432 {
1433         int i;
1434         memset(gs, 0, sizeof(*gs));
1435
1436         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1437                 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1438 }
1439
1440 void init_thread_stat(struct thread_stat *ts)
1441 {
1442         int j;
1443
1444         memset(ts, 0, sizeof(*ts));
1445
1446         for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1447                 ts->lat_stat[j].min_val = -1UL;
1448                 ts->clat_stat[j].min_val = -1UL;
1449                 ts->slat_stat[j].min_val = -1UL;
1450                 ts->bw_stat[j].min_val = -1UL;
1451         }
1452         ts->groupid = -1;
1453 }
1454
1455 void __show_run_stats(void)
1456 {
1457         struct group_run_stats *runstats, *rs;
1458         struct thread_data *td;
1459         struct thread_stat *threadstats, *ts;
1460         int i, j, k, nr_ts, last_ts, idx;
1461         int kb_base_warned = 0;
1462         int unit_base_warned = 0;
1463         struct json_object *root = NULL;
1464         struct json_array *array = NULL;
1465         struct buf_output output[FIO_OUTPUT_NR];
1466         struct flist_head **opt_lists;
1467
1468         runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1469
1470         for (i = 0; i < groupid + 1; i++)
1471                 init_group_run_stat(&runstats[i]);
1472
1473         /*
1474          * find out how many threads stats we need. if group reporting isn't
1475          * enabled, it's one-per-td.
1476          */
1477         nr_ts = 0;
1478         last_ts = -1;
1479         for_each_td(td, i) {
1480                 if (!td->o.group_reporting) {
1481                         nr_ts++;
1482                         continue;
1483                 }
1484                 if (last_ts == td->groupid)
1485                         continue;
1486
1487                 last_ts = td->groupid;
1488                 nr_ts++;
1489         }
1490
1491         threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1492         opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1493
1494         for (i = 0; i < nr_ts; i++) {
1495                 init_thread_stat(&threadstats[i]);
1496                 opt_lists[i] = NULL;
1497         }
1498
1499         j = 0;
1500         last_ts = -1;
1501         idx = 0;
1502         for_each_td(td, i) {
1503                 if (idx && (!td->o.group_reporting ||
1504                     (td->o.group_reporting && last_ts != td->groupid))) {
1505                         idx = 0;
1506                         j++;
1507                 }
1508
1509                 last_ts = td->groupid;
1510
1511                 ts = &threadstats[j];
1512
1513                 ts->clat_percentiles = td->o.clat_percentiles;
1514                 ts->percentile_precision = td->o.percentile_precision;
1515                 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1516                 opt_lists[j] = &td->opt_list;
1517
1518                 idx++;
1519                 ts->members++;
1520
1521                 if (ts->groupid == -1) {
1522                         /*
1523                          * These are per-group shared already
1524                          */
1525                         strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1526                         if (td->o.description)
1527                                 strncpy(ts->description, td->o.description,
1528                                                 FIO_JOBDESC_SIZE - 1);
1529                         else
1530                                 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1531
1532                         /*
1533                          * If multiple entries in this group, this is
1534                          * the first member.
1535                          */
1536                         ts->thread_number = td->thread_number;
1537                         ts->groupid = td->groupid;
1538
1539                         /*
1540                          * first pid in group, not very useful...
1541                          */
1542                         ts->pid = td->pid;
1543
1544                         ts->kb_base = td->o.kb_base;
1545                         ts->unit_base = td->o.unit_base;
1546                         ts->unified_rw_rep = td->o.unified_rw_rep;
1547                 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1548                         log_info("fio: kb_base differs for jobs in group, using"
1549                                  " %u as the base\n", ts->kb_base);
1550                         kb_base_warned = 1;
1551                 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1552                         log_info("fio: unit_base differs for jobs in group, using"
1553                                  " %u as the base\n", ts->unit_base);
1554                         unit_base_warned = 1;
1555                 }
1556
1557                 ts->continue_on_error = td->o.continue_on_error;
1558                 ts->total_err_count += td->total_err_count;
1559                 ts->first_error = td->first_error;
1560                 if (!ts->error) {
1561                         if (!td->error && td->o.continue_on_error &&
1562                             td->first_error) {
1563                                 ts->error = td->first_error;
1564                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1565                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1566                         } else  if (td->error) {
1567                                 ts->error = td->error;
1568                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1569                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1570                         }
1571                 }
1572
1573                 ts->latency_depth = td->latency_qd;
1574                 ts->latency_target = td->o.latency_target;
1575                 ts->latency_percentile = td->o.latency_percentile;
1576                 ts->latency_window = td->o.latency_window;
1577
1578                 ts->nr_block_infos = td->ts.nr_block_infos;
1579                 for (k = 0; k < ts->nr_block_infos; k++)
1580                         ts->block_infos[k] = td->ts.block_infos[k];
1581
1582                 sum_thread_stats(ts, &td->ts, idx == 1);
1583         }
1584
1585         for (i = 0; i < nr_ts; i++) {
1586                 unsigned long long bw;
1587
1588                 ts = &threadstats[i];
1589                 if (ts->groupid == -1)
1590                         continue;
1591                 rs = &runstats[ts->groupid];
1592                 rs->kb_base = ts->kb_base;
1593                 rs->unit_base = ts->unit_base;
1594                 rs->unified_rw_rep += ts->unified_rw_rep;
1595
1596                 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1597                         if (!ts->runtime[j])
1598                                 continue;
1599                         if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1600                                 rs->min_run[j] = ts->runtime[j];
1601                         if (ts->runtime[j] > rs->max_run[j])
1602                                 rs->max_run[j] = ts->runtime[j];
1603
1604                         bw = 0;
1605                         if (ts->runtime[j]) {
1606                                 unsigned long runt = ts->runtime[j];
1607                                 unsigned long long kb;
1608
1609                                 kb = ts->io_bytes[j] / rs->kb_base;
1610                                 bw = kb * 1000 / runt;
1611                         }
1612                         if (bw < rs->min_bw[j])
1613                                 rs->min_bw[j] = bw;
1614                         if (bw > rs->max_bw[j])
1615                                 rs->max_bw[j] = bw;
1616
1617                         rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1618                 }
1619         }
1620
1621         for (i = 0; i < groupid + 1; i++) {
1622                 int ddir;
1623
1624                 rs = &runstats[i];
1625
1626                 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1627                         if (rs->max_run[ddir])
1628                                 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1629                                                 rs->max_run[ddir];
1630                 }
1631         }
1632
1633         for (i = 0; i < FIO_OUTPUT_NR; i++)
1634                 buf_output_init(&output[i]);
1635
1636         /*
1637          * don't overwrite last signal output
1638          */
1639         if (output_format & FIO_OUTPUT_NORMAL)
1640                 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1641         if (output_format & FIO_OUTPUT_JSON) {
1642                 struct thread_data *global;
1643                 char time_buf[32];
1644                 struct timeval now;
1645                 unsigned long long ms_since_epoch;
1646
1647                 gettimeofday(&now, NULL);
1648                 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1649                                  (unsigned long long)(now.tv_usec) / 1000;
1650
1651                 os_ctime_r((const time_t *) &now.tv_sec, time_buf,
1652                                 sizeof(time_buf));
1653                 if (time_buf[strlen(time_buf) - 1] == '\n')
1654                         time_buf[strlen(time_buf) - 1] = '\0';
1655
1656                 root = json_create_object();
1657                 json_object_add_value_string(root, "fio version", fio_version_string);
1658                 json_object_add_value_int(root, "timestamp", now.tv_sec);
1659                 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1660                 json_object_add_value_string(root, "time", time_buf);
1661                 global = get_global_options();
1662                 json_add_job_opts(root, "global options", &global->opt_list, false);
1663                 array = json_create_array();
1664                 json_object_add_value_array(root, "jobs", array);
1665         }
1666
1667         if (is_backend)
1668                 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1669
1670         for (i = 0; i < nr_ts; i++) {
1671                 ts = &threadstats[i];
1672                 rs = &runstats[ts->groupid];
1673
1674                 if (is_backend) {
1675                         fio_server_send_job_options(opt_lists[i], i);
1676                         fio_server_send_ts(ts, rs);
1677                 } else {
1678                         if (output_format & FIO_OUTPUT_TERSE)
1679                                 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1680                         if (output_format & FIO_OUTPUT_JSON) {
1681                                 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1682                                 json_array_add_value_object(array, tmp);
1683                         }
1684                         if (output_format & FIO_OUTPUT_NORMAL)
1685                                 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1686                 }
1687         }
1688         if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1689                 /* disk util stats, if any */
1690                 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1691
1692                 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1693
1694                 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1695                 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1696                 json_free_object(root);
1697         }
1698
1699         for (i = 0; i < groupid + 1; i++) {
1700                 rs = &runstats[i];
1701
1702                 rs->groupid = i;
1703                 if (is_backend)
1704                         fio_server_send_gs(rs);
1705                 else if (output_format & FIO_OUTPUT_NORMAL)
1706                         show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1707         }
1708
1709         if (is_backend)
1710                 fio_server_send_du();
1711         else if (output_format & FIO_OUTPUT_NORMAL) {
1712                 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1713                 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1714         }
1715
1716         for (i = 0; i < FIO_OUTPUT_NR; i++) {
1717                 buf_output_flush(&output[i]);
1718                 buf_output_free(&output[i]);
1719         }
1720
1721         log_info_flush();
1722         free(runstats);
1723         free(threadstats);
1724         free(opt_lists);
1725 }
1726
1727 void show_run_stats(void)
1728 {
1729         fio_mutex_down(stat_mutex);
1730         __show_run_stats();
1731         fio_mutex_up(stat_mutex);
1732 }
1733
1734 void __show_running_run_stats(void)
1735 {
1736         struct thread_data *td;
1737         unsigned long long *rt;
1738         struct timeval tv;
1739         int i;
1740
1741         fio_mutex_down(stat_mutex);
1742
1743         rt = malloc(thread_number * sizeof(unsigned long long));
1744         fio_gettime(&tv, NULL);
1745
1746         for_each_td(td, i) {
1747                 td->update_rusage = 1;
1748                 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1749                 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1750                 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1751                 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1752
1753                 rt[i] = mtime_since(&td->start, &tv);
1754                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1755                         td->ts.runtime[DDIR_READ] += rt[i];
1756                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1757                         td->ts.runtime[DDIR_WRITE] += rt[i];
1758                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1759                         td->ts.runtime[DDIR_TRIM] += rt[i];
1760         }
1761
1762         for_each_td(td, i) {
1763                 if (td->runstate >= TD_EXITED)
1764                         continue;
1765                 if (td->rusage_sem) {
1766                         td->update_rusage = 1;
1767                         fio_mutex_down(td->rusage_sem);
1768                 }
1769                 td->update_rusage = 0;
1770         }
1771
1772         __show_run_stats();
1773
1774         for_each_td(td, i) {
1775                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1776                         td->ts.runtime[DDIR_READ] -= rt[i];
1777                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1778                         td->ts.runtime[DDIR_WRITE] -= rt[i];
1779                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1780                         td->ts.runtime[DDIR_TRIM] -= rt[i];
1781         }
1782
1783         free(rt);
1784         fio_mutex_up(stat_mutex);
1785 }
1786
1787 static int status_interval_init;
1788 static struct timeval status_time;
1789 static int status_file_disabled;
1790
1791 #define FIO_STATUS_FILE         "fio-dump-status"
1792
1793 static int check_status_file(void)
1794 {
1795         struct stat sb;
1796         const char *temp_dir;
1797         char fio_status_file_path[PATH_MAX];
1798
1799         if (status_file_disabled)
1800                 return 0;
1801
1802         temp_dir = getenv("TMPDIR");
1803         if (temp_dir == NULL) {
1804                 temp_dir = getenv("TEMP");
1805                 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1806                         temp_dir = NULL;
1807         }
1808         if (temp_dir == NULL)
1809                 temp_dir = "/tmp";
1810
1811         snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1812
1813         if (stat(fio_status_file_path, &sb))
1814                 return 0;
1815
1816         if (unlink(fio_status_file_path) < 0) {
1817                 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1818                                                         strerror(errno));
1819                 log_err("fio: disabling status file updates\n");
1820                 status_file_disabled = 1;
1821         }
1822
1823         return 1;
1824 }
1825
1826 void check_for_running_stats(void)
1827 {
1828         if (status_interval) {
1829                 if (!status_interval_init) {
1830                         fio_gettime(&status_time, NULL);
1831                         status_interval_init = 1;
1832                 } else if (mtime_since_now(&status_time) >= status_interval) {
1833                         show_running_run_stats();
1834                         fio_gettime(&status_time, NULL);
1835                         return;
1836                 }
1837         }
1838         if (check_status_file()) {
1839                 show_running_run_stats();
1840                 return;
1841         }
1842 }
1843
1844 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1845 {
1846         double val = data;
1847         double delta;
1848
1849         if (data > is->max_val)
1850                 is->max_val = data;
1851         if (data < is->min_val)
1852                 is->min_val = data;
1853
1854         delta = val - is->mean.u.f;
1855         if (delta) {
1856                 is->mean.u.f += delta / (is->samples + 1.0);
1857                 is->S.u.f += delta * (val - is->mean.u.f);
1858         }
1859
1860         is->samples++;
1861 }
1862
1863 /*
1864  * Return a struct io_logs, which is added to the tail of the log
1865  * list for 'iolog'.
1866  */
1867 static struct io_logs *get_new_log(struct io_log *iolog)
1868 {
1869         size_t new_size, new_samples;
1870         struct io_logs *cur_log;
1871
1872         /*
1873          * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
1874          * forever
1875          */
1876         if (!iolog->cur_log_max)
1877                 new_samples = DEF_LOG_ENTRIES;
1878         else {
1879                 new_samples = iolog->cur_log_max * 2;
1880                 if (new_samples > MAX_LOG_ENTRIES)
1881                         new_samples = MAX_LOG_ENTRIES;
1882         }
1883
1884         new_size = new_samples * log_entry_sz(iolog);
1885
1886         cur_log = smalloc(sizeof(*cur_log));
1887         if (cur_log) {
1888                 INIT_FLIST_HEAD(&cur_log->list);
1889                 cur_log->log = malloc(new_size);
1890                 if (cur_log->log) {
1891                         cur_log->nr_samples = 0;
1892                         cur_log->max_samples = new_samples;
1893                         flist_add_tail(&cur_log->list, &iolog->io_logs);
1894                         iolog->cur_log_max = new_samples;
1895                         return cur_log;
1896                 }
1897                 sfree(cur_log);
1898         }
1899
1900         return NULL;
1901 }
1902
1903 /*
1904  * Add and return a new log chunk, or return current log if big enough
1905  */
1906 static struct io_logs *regrow_log(struct io_log *iolog)
1907 {
1908         struct io_logs *cur_log;
1909         int i;
1910
1911         if (!iolog || iolog->disabled)
1912                 goto disable;
1913
1914         cur_log = iolog_cur_log(iolog);
1915         if (!cur_log) {
1916                 cur_log = get_new_log(iolog);
1917                 if (!cur_log)
1918                         return NULL;
1919         }
1920
1921         if (cur_log->nr_samples < cur_log->max_samples)
1922                 return cur_log;
1923
1924         /*
1925          * No room for a new sample. If we're compressing on the fly, flush
1926          * out the current chunk
1927          */
1928         if (iolog->log_gz) {
1929                 if (iolog_cur_flush(iolog, cur_log)) {
1930                         log_err("fio: failed flushing iolog! Will stop logging.\n");
1931                         return NULL;
1932                 }
1933         }
1934
1935         /*
1936          * Get a new log array, and add to our list
1937          */
1938         cur_log = get_new_log(iolog);
1939         if (!cur_log) {
1940                 log_err("fio: failed extending iolog! Will stop logging.\n");
1941                 return NULL;
1942         }
1943
1944         if (!iolog->pending || !iolog->pending->nr_samples)
1945                 return cur_log;
1946
1947         /*
1948          * Flush pending items to new log
1949          */
1950         for (i = 0; i < iolog->pending->nr_samples; i++) {
1951                 struct io_sample *src, *dst;
1952
1953                 src = get_sample(iolog, iolog->pending, i);
1954                 dst = get_sample(iolog, cur_log, i);
1955                 memcpy(dst, src, log_entry_sz(iolog));
1956         }
1957         cur_log->nr_samples = iolog->pending->nr_samples;
1958
1959         iolog->pending->nr_samples = 0;
1960         return cur_log;
1961 disable:
1962         if (iolog)
1963                 iolog->disabled = true;
1964         return NULL;
1965 }
1966
1967 void regrow_logs(struct thread_data *td)
1968 {
1969         regrow_log(td->slat_log);
1970         regrow_log(td->clat_log);
1971         regrow_log(td->clat_hist_log);
1972         regrow_log(td->lat_log);
1973         regrow_log(td->bw_log);
1974         regrow_log(td->iops_log);
1975         td->flags &= ~TD_F_REGROW_LOGS;
1976 }
1977
1978 static struct io_logs *get_cur_log(struct io_log *iolog)
1979 {
1980         struct io_logs *cur_log;
1981
1982         cur_log = iolog_cur_log(iolog);
1983         if (!cur_log) {
1984                 cur_log = get_new_log(iolog);
1985                 if (!cur_log)
1986                         return NULL;
1987         }
1988
1989         if (cur_log->nr_samples < cur_log->max_samples)
1990                 return cur_log;
1991
1992         /*
1993          * Out of space. If we're in IO offload mode, or we're not doing
1994          * per unit logging (hence logging happens outside of the IO thread
1995          * as well), add a new log chunk inline. If we're doing inline
1996          * submissions, flag 'td' as needing a log regrow and we'll take
1997          * care of it on the submission side.
1998          */
1999         if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
2000             !per_unit_log(iolog))
2001                 return regrow_log(iolog);
2002
2003         iolog->td->flags |= TD_F_REGROW_LOGS;
2004         assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2005         return iolog->pending;
2006 }
2007
2008 static void __add_log_sample(struct io_log *iolog, unsigned long val,
2009                              enum fio_ddir ddir, unsigned int bs,
2010                              unsigned long t, uint64_t offset)
2011 {
2012         struct io_logs *cur_log;
2013
2014         if (iolog->disabled)
2015                 return;
2016         if (flist_empty(&iolog->io_logs))
2017                 iolog->avg_last = t;
2018
2019         cur_log = get_cur_log(iolog);
2020         if (cur_log) {
2021                 struct io_sample *s;
2022
2023                 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2024
2025                 s->val = val;
2026                 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2027                 io_sample_set_ddir(iolog, s, ddir);
2028                 s->bs = bs;
2029
2030                 if (iolog->log_offset) {
2031                         struct io_sample_offset *so = (void *) s;
2032
2033                         so->offset = offset;
2034                 }
2035
2036                 cur_log->nr_samples++;
2037                 return;
2038         }
2039
2040         iolog->disabled = true;
2041 }
2042
2043 static inline void reset_io_stat(struct io_stat *ios)
2044 {
2045         ios->max_val = ios->min_val = ios->samples = 0;
2046         ios->mean.u.f = ios->S.u.f = 0;
2047 }
2048
2049 void reset_io_stats(struct thread_data *td)
2050 {
2051         struct thread_stat *ts = &td->ts;
2052         int i, j;
2053
2054         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2055                 reset_io_stat(&ts->clat_stat[i]);
2056                 reset_io_stat(&ts->slat_stat[i]);
2057                 reset_io_stat(&ts->lat_stat[i]);
2058                 reset_io_stat(&ts->bw_stat[i]);
2059                 reset_io_stat(&ts->iops_stat[i]);
2060
2061                 ts->io_bytes[i] = 0;
2062                 ts->runtime[i] = 0;
2063
2064                 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
2065                         ts->io_u_plat[i][j] = 0;
2066         }
2067
2068         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2069                 ts->io_u_map[i] = 0;
2070                 ts->io_u_submit[i] = 0;
2071                 ts->io_u_complete[i] = 0;
2072                 ts->io_u_lat_u[i] = 0;
2073                 ts->io_u_lat_m[i] = 0;
2074                 ts->total_submit = 0;
2075                 ts->total_complete = 0;
2076         }
2077
2078         for (i = 0; i < 3; i++) {
2079                 ts->total_io_u[i] = 0;
2080                 ts->short_io_u[i] = 0;
2081                 ts->drop_io_u[i] = 0;
2082         }
2083 }
2084
2085 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2086                               unsigned long elapsed, bool log_max)
2087 {
2088         /*
2089          * Note an entry in the log. Use the mean from the logged samples,
2090          * making sure to properly round up. Only write a log entry if we
2091          * had actual samples done.
2092          */
2093         if (iolog->avg_window[ddir].samples) {
2094                 unsigned long val;
2095
2096                 if (log_max)
2097                         val = iolog->avg_window[ddir].max_val;
2098                 else
2099                         val = iolog->avg_window[ddir].mean.u.f + 0.50;
2100
2101                 __add_log_sample(iolog, val, ddir, 0, elapsed, 0);
2102         }
2103
2104         reset_io_stat(&iolog->avg_window[ddir]);
2105 }
2106
2107 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2108                              bool log_max)
2109 {
2110         int ddir;
2111
2112         for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2113                 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2114 }
2115
2116 static long add_log_sample(struct thread_data *td, struct io_log *iolog,
2117                            unsigned long val, enum fio_ddir ddir,
2118                            unsigned int bs, uint64_t offset)
2119 {
2120         unsigned long elapsed, this_window;
2121
2122         if (!ddir_rw(ddir))
2123                 return 0;
2124
2125         elapsed = mtime_since_now(&td->epoch);
2126
2127         /*
2128          * If no time averaging, just add the log sample.
2129          */
2130         if (!iolog->avg_msec) {
2131                 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
2132                 return 0;
2133         }
2134
2135         /*
2136          * Add the sample. If the time period has passed, then
2137          * add that entry to the log and clear.
2138          */
2139         add_stat_sample(&iolog->avg_window[ddir], val);
2140
2141         /*
2142          * If period hasn't passed, adding the above sample is all we
2143          * need to do.
2144          */
2145         this_window = elapsed - iolog->avg_last;
2146         if (elapsed < iolog->avg_last)
2147                 return iolog->avg_last - elapsed;
2148         else if (this_window < iolog->avg_msec) {
2149                 int diff = iolog->avg_msec - this_window;
2150
2151                 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2152                         return diff;
2153         }
2154
2155         _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2156
2157         iolog->avg_last = elapsed - (this_window - iolog->avg_msec);
2158         return iolog->avg_msec;
2159 }
2160
2161 void finalize_logs(struct thread_data *td, bool unit_logs)
2162 {
2163         unsigned long elapsed;
2164
2165         elapsed = mtime_since_now(&td->epoch);
2166
2167         if (td->clat_log && unit_logs)
2168                 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2169         if (td->slat_log && unit_logs)
2170                 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2171         if (td->lat_log && unit_logs)
2172                 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2173         if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2174                 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2175         if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2176                 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2177 }
2178
2179 void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
2180 {
2181         struct io_log *iolog;
2182
2183         if (!ddir_rw(ddir))
2184                 return;
2185
2186         iolog = agg_io_log[ddir];
2187         __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
2188 }
2189
2190 static void add_clat_percentile_sample(struct thread_stat *ts,
2191                                 unsigned long usec, enum fio_ddir ddir)
2192 {
2193         unsigned int idx = plat_val_to_idx(usec);
2194         assert(idx < FIO_IO_U_PLAT_NR);
2195
2196         ts->io_u_plat[ddir][idx]++;
2197 }
2198
2199 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2200                      unsigned long usec, unsigned int bs, uint64_t offset)
2201 {
2202         unsigned long elapsed, this_window;
2203         struct thread_stat *ts = &td->ts;
2204         struct io_log *iolog = td->clat_hist_log;
2205
2206         td_io_u_lock(td);
2207
2208         add_stat_sample(&ts->clat_stat[ddir], usec);
2209
2210         if (td->clat_log)
2211                 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
2212
2213         if (ts->clat_percentiles)
2214                 add_clat_percentile_sample(ts, usec, ddir);
2215
2216         if (iolog && iolog->hist_msec) {
2217                 struct io_hist *hw = &iolog->hist_window[ddir];
2218
2219                 hw->samples++;
2220                 elapsed = mtime_since_now(&td->epoch);
2221                 if (!hw->hist_last)
2222                         hw->hist_last = elapsed;
2223                 this_window = elapsed - hw->hist_last;
2224
2225                 if (this_window >= iolog->hist_msec) {
2226                         unsigned int *io_u_plat;
2227                         struct io_u_plat_entry *dst;
2228
2229                         /*
2230                          * Make a byte-for-byte copy of the latency histogram
2231                          * stored in td->ts.io_u_plat[ddir], recording it in a
2232                          * log sample. Note that the matching call to free() is
2233                          * located in iolog.c after printing this sample to the
2234                          * log file.
2235                          */
2236                         io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
2237                         dst = malloc(sizeof(struct io_u_plat_entry));
2238                         memcpy(&(dst->io_u_plat), io_u_plat,
2239                                 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2240                         flist_add(&dst->list, &hw->list);
2241                         __add_log_sample(iolog, (unsigned long)dst, ddir, bs,
2242                                                 elapsed, offset);
2243
2244                         /*
2245                          * Update the last time we recorded as being now, minus
2246                          * any drift in time we encountered before actually
2247                          * making the record.
2248                          */
2249                         hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2250                         hw->samples = 0;
2251                 }
2252         }
2253
2254         td_io_u_unlock(td);
2255 }
2256
2257 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2258                      unsigned long usec, unsigned int bs, uint64_t offset)
2259 {
2260         struct thread_stat *ts = &td->ts;
2261
2262         if (!ddir_rw(ddir))
2263                 return;
2264
2265         td_io_u_lock(td);
2266
2267         add_stat_sample(&ts->slat_stat[ddir], usec);
2268
2269         if (td->slat_log)
2270                 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
2271
2272         td_io_u_unlock(td);
2273 }
2274
2275 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2276                     unsigned long usec, unsigned int bs, uint64_t offset)
2277 {
2278         struct thread_stat *ts = &td->ts;
2279
2280         if (!ddir_rw(ddir))
2281                 return;
2282
2283         td_io_u_lock(td);
2284
2285         add_stat_sample(&ts->lat_stat[ddir], usec);
2286
2287         if (td->lat_log)
2288                 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2289
2290         td_io_u_unlock(td);
2291 }
2292
2293 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2294                    unsigned int bytes, unsigned long spent)
2295 {
2296         struct thread_stat *ts = &td->ts;
2297         unsigned long rate;
2298
2299         if (spent)
2300                 rate = bytes * 1000 / spent;
2301         else
2302                 rate = 0;
2303
2304         td_io_u_lock(td);
2305
2306         add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2307
2308         if (td->bw_log)
2309                 add_log_sample(td, td->bw_log, rate, io_u->ddir, bytes, io_u->offset);
2310
2311         td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2312         td_io_u_unlock(td);
2313 }
2314
2315 static int add_bw_samples(struct thread_data *td, struct timeval *t)
2316 {
2317         struct thread_stat *ts = &td->ts;
2318         unsigned long spent, rate;
2319         enum fio_ddir ddir;
2320         unsigned int next, next_log;
2321
2322         next_log = td->o.bw_avg_time;
2323
2324         spent = mtime_since(&td->bw_sample_time, t);
2325         if (spent < td->o.bw_avg_time &&
2326             td->o.bw_avg_time - spent >= LOG_MSEC_SLACK)
2327                 return td->o.bw_avg_time - spent;
2328
2329         td_io_u_lock(td);
2330
2331         /*
2332          * Compute both read and write rates for the interval.
2333          */
2334         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2335                 uint64_t delta;
2336
2337                 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2338                 if (!delta)
2339                         continue; /* No entries for interval */
2340
2341                 if (spent)
2342                         rate = delta * 1000 / spent / 1024;
2343                 else
2344                         rate = 0;
2345
2346                 add_stat_sample(&ts->bw_stat[ddir], rate);
2347
2348                 if (td->bw_log) {
2349                         unsigned int bs = 0;
2350
2351                         if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2352                                 bs = td->o.min_bs[ddir];
2353
2354                         next = add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2355                         next_log = min(next_log, next);
2356                 }
2357
2358                 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2359         }
2360
2361         timeval_add_msec(&td->bw_sample_time, td->o.bw_avg_time);
2362
2363         td_io_u_unlock(td);
2364
2365         if (spent <= td->o.bw_avg_time)
2366                 return min(next_log, td->o.bw_avg_time);
2367
2368         next = td->o.bw_avg_time - (1 + spent - td->o.bw_avg_time);
2369         return min(next, next_log);
2370 }
2371
2372 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2373                      unsigned int bytes)
2374 {
2375         struct thread_stat *ts = &td->ts;
2376
2377         td_io_u_lock(td);
2378
2379         add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2380
2381         if (td->iops_log)
2382                 add_log_sample(td, td->iops_log, 1, io_u->ddir, bytes, io_u->offset);
2383
2384         td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2385         td_io_u_unlock(td);
2386 }
2387
2388 static int add_iops_samples(struct thread_data *td, struct timeval *t)
2389 {
2390         struct thread_stat *ts = &td->ts;
2391         unsigned long spent, iops;
2392         enum fio_ddir ddir;
2393         unsigned int next, next_log;
2394
2395         next_log = td->o.iops_avg_time;
2396
2397         spent = mtime_since(&td->iops_sample_time, t);
2398         if (spent < td->o.iops_avg_time &&
2399             td->o.iops_avg_time - spent >= LOG_MSEC_SLACK)
2400                 return td->o.iops_avg_time - spent;
2401
2402         td_io_u_lock(td);
2403
2404         /*
2405          * Compute both read and write rates for the interval.
2406          */
2407         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2408                 uint64_t delta;
2409
2410                 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2411                 if (!delta)
2412                         continue; /* No entries for interval */
2413
2414                 if (spent)
2415                         iops = (delta * 1000) / spent;
2416                 else
2417                         iops = 0;
2418
2419                 add_stat_sample(&ts->iops_stat[ddir], iops);
2420
2421                 if (td->iops_log) {
2422                         unsigned int bs = 0;
2423
2424                         if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2425                                 bs = td->o.min_bs[ddir];
2426
2427                         next = add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2428                         next_log = min(next_log, next);
2429                 }
2430
2431                 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2432         }
2433
2434         timeval_add_msec(&td->iops_sample_time, td->o.iops_avg_time);
2435
2436         td_io_u_unlock(td);
2437
2438         if (spent <= td->o.iops_avg_time)
2439                 return min(next_log, td->o.iops_avg_time);
2440
2441         next = td->o.iops_avg_time - (1 + spent - td->o.iops_avg_time);
2442         return min(next, next_log);
2443 }
2444
2445 /*
2446  * Returns msecs to next event
2447  */
2448 int calc_log_samples(void)
2449 {
2450         struct thread_data *td;
2451         unsigned int next = ~0U, tmp;
2452         struct timeval now;
2453         int i;
2454
2455         fio_gettime(&now, NULL);
2456
2457         for_each_td(td, i) {
2458                 if (in_ramp_time(td) ||
2459                     !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2460                         next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2461                         continue;
2462                 }
2463                 if (td->bw_log && !per_unit_log(td->bw_log)) {
2464                         tmp = add_bw_samples(td, &now);
2465                         if (tmp < next)
2466                                 next = tmp;
2467                 }
2468                 if (td->iops_log && !per_unit_log(td->iops_log)) {
2469                         tmp = add_iops_samples(td, &now);
2470                         if (tmp < next)
2471                                 next = tmp;
2472                 }
2473         }
2474
2475         return next == ~0U ? 0 : next;
2476 }
2477
2478 void stat_init(void)
2479 {
2480         stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2481 }
2482
2483 void stat_exit(void)
2484 {
2485         /*
2486          * When we have the mutex, we know out-of-band access to it
2487          * have ended.
2488          */
2489         fio_mutex_down(stat_mutex);
2490         fio_mutex_remove(stat_mutex);
2491 }
2492
2493 /*
2494  * Called from signal handler. Wake up status thread.
2495  */
2496 void show_running_run_stats(void)
2497 {
2498         helper_do_stat();
2499 }
2500
2501 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2502 {
2503         /* Ignore io_u's which span multiple blocks--they will just get
2504          * inaccurate counts. */
2505         int idx = (io_u->offset - io_u->file->file_offset)
2506                         / td->o.bs[DDIR_TRIM];
2507         uint32_t *info = &td->ts.block_infos[idx];
2508         assert(idx < td->ts.nr_block_infos);
2509         return info;
2510 }