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_ss_normal(struct thread_stat *ts, struct buf_output *out)
 661 {
 662         char *p1, *p2;
 663         unsigned long long bw_mean, iops_mean;
 664         const int i2p = is_power_of_2(ts->kb_base);
 665
 666         if (!ts->ss_dur)
 667                 return;
 668
 669         bw_mean = steadystate_bw_mean(ts);
 670         iops_mean = steadystate_iops_mean(ts);
 671
 672         p1 = num2str(bw_mean / ts->kb_base, 6, ts->kb_base, i2p, ts->unit_base);
 673         p2 = num2str(iops_mean, 6, 1, 0, 0);
 674
 675         log_buf(out, "  steadystate  : attained=%s, bw=%s/s, iops=%s, %s%s=%.3f%s\n",
 676                 ts->ss_state & __FIO_SS_ATTAINED ? "yes" : "no",
 677                 p1, p2,
 678                 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
 679                 ts->ss_state & __FIO_SS_SLOPE ? " slope": " mean dev",
 680                 ts->ss_criterion.u.f,
 681                 ts->ss_state & __FIO_SS_PCT ? "%" : "");
 682
 683         free(p1);
 684         free(p2);
 685 }
 686
 687 static void show_thread_status_normal(struct thread_stat *ts,
 688                                       struct group_run_stats *rs,
 689                                       struct buf_output *out)
 690 {
 691         double usr_cpu, sys_cpu;
 692         unsigned long runtime;
 693         double io_u_dist[FIO_IO_U_MAP_NR];
 694         time_t time_p;
 695         char time_buf[32];
 696
 697         if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
 698                 return;
 699
 700         memset(time_buf, 0, sizeof(time_buf));
 701
 702         time(&time_p);
 703         os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
 704
 705         if (!ts->error) {
 706                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
 707                                         ts->name, ts->groupid, ts->members,
 708                                         ts->error, (int) ts->pid, time_buf);
 709         } else {
 710                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
 711                                         ts->name, ts->groupid, ts->members,
 712                                         ts->error, ts->verror, (int) ts->pid,
 713                                         time_buf);
 714         }
 715
 716         if (strlen(ts->description))
 717                 log_buf(out, "  Description  : [%s]\n", ts->description);
 718
 719         if (ts->io_bytes[DDIR_READ])
 720                 show_ddir_status(rs, ts, DDIR_READ, out);
 721         if (ts->io_bytes[DDIR_WRITE])
 722                 show_ddir_status(rs, ts, DDIR_WRITE, out);
 723         if (ts->io_bytes[DDIR_TRIM])
 724                 show_ddir_status(rs, ts, DDIR_TRIM, out);
 725
 726         show_latencies(ts, out);
 727
 728         runtime = ts->total_run_time;
 729         if (runtime) {
 730                 double runt = (double) runtime;
 731
 732                 usr_cpu = (double) ts->usr_time * 100 / runt;
 733                 sys_cpu = (double) ts->sys_time * 100 / runt;
 734         } else {
 735                 usr_cpu = 0;
 736                 sys_cpu = 0;
 737         }
 738
 739         log_buf(out, "  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
 740                  " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
 741                         (unsigned long long) ts->ctx,
 742                         (unsigned long long) ts->majf,
 743                         (unsigned long long) ts->minf);
 744
 745         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
 746         log_buf(out, "  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
 747                  " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 748                                         io_u_dist[1], io_u_dist[2],
 749                                         io_u_dist[3], io_u_dist[4],
 750                                         io_u_dist[5], io_u_dist[6]);
 751
 752         stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
 753         log_buf(out, "     submit    : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 754                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 755                                         io_u_dist[1], io_u_dist[2],
 756                                         io_u_dist[3], io_u_dist[4],
 757                                         io_u_dist[5], io_u_dist[6]);
 758         stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
 759         log_buf(out, "     complete  : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
 760                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
 761                                         io_u_dist[1], io_u_dist[2],
 762                                         io_u_dist[3], io_u_dist[4],
 763                                         io_u_dist[5], io_u_dist[6]);
 764         log_buf(out, "     issued    : total=r=%llu/w=%llu/d=%llu,"
 765                                  " short=r=%llu/w=%llu/d=%llu,"
 766                                  " drop=r=%llu/w=%llu/d=%llu\n",
 767                                         (unsigned long long) ts->total_io_u[0],
 768                                         (unsigned long long) ts->total_io_u[1],
 769                                         (unsigned long long) ts->total_io_u[2],
 770                                         (unsigned long long) ts->short_io_u[0],
 771                                         (unsigned long long) ts->short_io_u[1],
 772                                         (unsigned long long) ts->short_io_u[2],
 773                                         (unsigned long long) ts->drop_io_u[0],
 774                                         (unsigned long long) ts->drop_io_u[1],
 775                                         (unsigned long long) ts->drop_io_u[2]);
 776         if (ts->continue_on_error) {
 777                 log_buf(out, "     errors    : total=%llu, first_error=%d/<%s>\n",
 778                                         (unsigned long long)ts->total_err_count,
 779                                         ts->first_error,
 780                                         strerror(ts->first_error));
 781         }
 782         if (ts->latency_depth) {
 783                 log_buf(out, "     latency   : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
 784                                         (unsigned long long)ts->latency_target,
 785                                         (unsigned long long)ts->latency_window,
 786                                         ts->latency_percentile.u.f,
 787                                         ts->latency_depth);
 788         }
 789
 790         if (ts->nr_block_infos)
 791                 show_block_infos(ts->nr_block_infos, ts->block_infos,
 792                                   ts->percentile_list, out);
 793
 794         if (ts->ss_dur)
 795                 show_ss_normal(ts, out);
 796 }
 797
 798 static void show_ddir_status_terse(struct thread_stat *ts,
 799                                    struct group_run_stats *rs, int ddir,
 800                                    struct buf_output *out)
 801 {
 802         unsigned long min, max;
 803         unsigned long long bw, iops;
 804         unsigned int *ovals = NULL;
 805         double mean, dev;
 806         unsigned int len, minv, maxv;
 807         int i;
 808
 809         assert(ddir_rw(ddir));
 810
 811         iops = bw = 0;
 812         if (ts->runtime[ddir]) {
 813                 uint64_t runt = ts->runtime[ddir];
 814
 815                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 816                 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
 817         }
 818
 819         log_buf(out, ";%llu;%llu;%llu;%llu",
 820                 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
 821                                         (unsigned long long) ts->runtime[ddir]);
 822
 823         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
 824                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 825         else
 826                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 827
 828         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
 829                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 830         else
 831                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 832
 833         if (ts->clat_percentiles) {
 834                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 835                                         ts->clat_stat[ddir].samples,
 836                                         ts->percentile_list, &ovals, &maxv,
 837                                         &minv);
 838         } else
 839                 len = 0;
 840
 841         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 842                 if (i >= len) {
 843                         log_buf(out, ";0%%=0");
 844                         continue;
 845                 }
 846                 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
 847         }
 848
 849         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 850                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
 851         else
 852                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 853
 854         if (ovals)
 855                 free(ovals);
 856
 857         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 858                 double p_of_agg = 100.0;
 859
 860                 if (rs->agg[ddir]) {
 861                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 862                         if (p_of_agg > 100.0)
 863                                 p_of_agg = 100.0;
 864                 }
 865
 866                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
 867         } else
 868                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 869 }
 870
 871 static void add_ddir_status_json(struct thread_stat *ts,
 872                 struct group_run_stats *rs, int ddir, struct json_object *parent)
 873 {
 874         unsigned long min, max;
 875         unsigned long long bw;
 876         unsigned int *ovals = NULL;
 877         double mean, dev, iops;
 878         unsigned int len, minv, maxv;
 879         int i;
 880         const char *ddirname[] = {"read", "write", "trim"};
 881         struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
 882         char buf[120];
 883         double p_of_agg = 100.0;
 884
 885         assert(ddir_rw(ddir));
 886
 887         if (ts->unified_rw_rep && ddir != DDIR_READ)
 888                 return;
 889
 890         dir_object = json_create_object();
 891         json_object_add_value_object(parent,
 892                 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
 893
 894         bw = 0;
 895         iops = 0.0;
 896         if (ts->runtime[ddir]) {
 897                 uint64_t runt = ts->runtime[ddir];
 898
 899                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 900                 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
 901         }
 902
 903         json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
 904         json_object_add_value_int(dir_object, "bw", bw);
 905         json_object_add_value_float(dir_object, "iops", iops);
 906         json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
 907         json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
 908         json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
 909         json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
 910
 911         if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
 912                 min = max = 0;
 913                 mean = dev = 0.0;
 914         }
 915         tmp_object = json_create_object();
 916         json_object_add_value_object(dir_object, "slat", tmp_object);
 917         json_object_add_value_int(tmp_object, "min", min);
 918         json_object_add_value_int(tmp_object, "max", max);
 919         json_object_add_value_float(tmp_object, "mean", mean);
 920         json_object_add_value_float(tmp_object, "stddev", dev);
 921
 922         if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
 923                 min = max = 0;
 924                 mean = dev = 0.0;
 925         }
 926         tmp_object = json_create_object();
 927         json_object_add_value_object(dir_object, "clat", tmp_object);
 928         json_object_add_value_int(tmp_object, "min", min);
 929         json_object_add_value_int(tmp_object, "max", max);
 930         json_object_add_value_float(tmp_object, "mean", mean);
 931         json_object_add_value_float(tmp_object, "stddev", dev);
 932
 933         if (ts->clat_percentiles) {
 934                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
 935                                         ts->clat_stat[ddir].samples,
 936                                         ts->percentile_list, &ovals, &maxv,
 937                                         &minv);
 938         } else
 939                 len = 0;
 940
 941         percentile_object = json_create_object();
 942         json_object_add_value_object(tmp_object, "percentile", percentile_object);
 943         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
 944                 if (i >= len) {
 945                         json_object_add_value_int(percentile_object, "0.00", 0);
 946                         continue;
 947                 }
 948                 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
 949                 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
 950         }
 951
 952         if (output_format & FIO_OUTPUT_JSON_PLUS) {
 953                 clat_bins_object = json_create_object();
 954                 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
 955                 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
 956                         snprintf(buf, sizeof(buf), "%d", i);
 957                         json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
 958                 }
 959                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_BITS", FIO_IO_U_PLAT_BITS);
 960                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_VAL", FIO_IO_U_PLAT_VAL);
 961                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_NR", FIO_IO_U_PLAT_NR);
 962         }
 963
 964         if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
 965                 min = max = 0;
 966                 mean = dev = 0.0;
 967         }
 968         tmp_object = json_create_object();
 969         json_object_add_value_object(dir_object, "lat", tmp_object);
 970         json_object_add_value_int(tmp_object, "min", min);
 971         json_object_add_value_int(tmp_object, "max", max);
 972         json_object_add_value_float(tmp_object, "mean", mean);
 973         json_object_add_value_float(tmp_object, "stddev", dev);
 974         if (ovals)
 975                 free(ovals);
 976
 977         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
 978                 if (rs->agg[ddir]) {
 979                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
 980                         if (p_of_agg > 100.0)
 981                                 p_of_agg = 100.0;
 982                 }
 983         } else {
 984                 min = max = 0;
 985                 p_of_agg = mean = dev = 0.0;
 986         }
 987         json_object_add_value_int(dir_object, "bw_min", min);
 988         json_object_add_value_int(dir_object, "bw_max", max);
 989         json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
 990         json_object_add_value_float(dir_object, "bw_mean", mean);
 991         json_object_add_value_float(dir_object, "bw_dev", dev);
 992 }
 993
 994 static void show_thread_status_terse_v2(struct thread_stat *ts,
 995                                         struct group_run_stats *rs,
 996                                         struct buf_output *out)
 997 {
 998         double io_u_dist[FIO_IO_U_MAP_NR];
 999         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1000         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1001         double usr_cpu, sys_cpu;
1002         int i;
1003
1004         /* General Info */
1005         log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1006         /* Log Read Status */
1007         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1008         /* Log Write Status */
1009         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1010         /* Log Trim Status */
1011         show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1012
1013         /* CPU Usage */
1014         if (ts->total_run_time) {
1015                 double runt = (double) ts->total_run_time;
1016
1017                 usr_cpu = (double) ts->usr_time * 100 / runt;
1018                 sys_cpu = (double) ts->sys_time * 100 / runt;
1019         } else {
1020                 usr_cpu = 0;
1021                 sys_cpu = 0;
1022         }
1023
1024         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1025                                                 (unsigned long long) ts->ctx,
1026                                                 (unsigned long long) ts->majf,
1027                                                 (unsigned long long) ts->minf);
1028
1029         /* Calc % distribution of IO depths, usecond, msecond latency */
1030         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1031         stat_calc_lat_u(ts, io_u_lat_u);
1032         stat_calc_lat_m(ts, io_u_lat_m);
1033
1034         /* Only show fixed 7 I/O depth levels*/
1035         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1036                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1037                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1038
1039         /* Microsecond latency */
1040         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1041                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1042         /* Millisecond latency */
1043         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1044                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1045         /* Additional output if continue_on_error set - default off*/
1046         if (ts->continue_on_error)
1047                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1048         log_buf(out, "\n");
1049
1050         /* Additional output if description is set */
1051         if (strlen(ts->description))
1052                 log_buf(out, ";%s", ts->description);
1053
1054         log_buf(out, "\n");
1055 }
1056
1057 static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1058                                            struct group_run_stats *rs, int ver,
1059                                            struct buf_output *out)
1060 {
1061         double io_u_dist[FIO_IO_U_MAP_NR];
1062         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1063         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1064         double usr_cpu, sys_cpu;
1065         int i;
1066
1067         /* General Info */
1068         log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1069                                         ts->name, ts->groupid, ts->error);
1070         /* Log Read Status */
1071         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1072         /* Log Write Status */
1073         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1074         /* Log Trim Status */
1075         if (ver == 4)
1076                 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1077
1078         /* CPU Usage */
1079         if (ts->total_run_time) {
1080                 double runt = (double) ts->total_run_time;
1081
1082                 usr_cpu = (double) ts->usr_time * 100 / runt;
1083                 sys_cpu = (double) ts->sys_time * 100 / runt;
1084         } else {
1085                 usr_cpu = 0;
1086                 sys_cpu = 0;
1087         }
1088
1089         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1090                                                 (unsigned long long) ts->ctx,
1091                                                 (unsigned long long) ts->majf,
1092                                                 (unsigned long long) ts->minf);
1093
1094         /* Calc % distribution of IO depths, usecond, msecond latency */
1095         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1096         stat_calc_lat_u(ts, io_u_lat_u);
1097         stat_calc_lat_m(ts, io_u_lat_m);
1098
1099         /* Only show fixed 7 I/O depth levels*/
1100         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1101                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1102                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1103
1104         /* Microsecond latency */
1105         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1106                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1107         /* Millisecond latency */
1108         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1109                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1110
1111         /* disk util stats, if any */
1112         show_disk_util(1, NULL, out);
1113
1114         /* Additional output if continue_on_error set - default off*/
1115         if (ts->continue_on_error)
1116                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1117
1118         /* Additional output if description is set */
1119         if (strlen(ts->description))
1120                 log_buf(out, ";%s", ts->description);
1121
1122         log_buf(out, "\n");
1123 }
1124
1125 static void json_add_job_opts(struct json_object *root, const char *name,
1126                               struct flist_head *opt_list, bool num_jobs)
1127 {
1128         struct json_object *dir_object;
1129         struct flist_head *entry;
1130         struct print_option *p;
1131
1132         if (flist_empty(opt_list))
1133                 return;
1134
1135         dir_object = json_create_object();
1136         json_object_add_value_object(root, name, dir_object);
1137
1138         flist_for_each(entry, opt_list) {
1139                 const char *pos = "";
1140
1141                 p = flist_entry(entry, struct print_option, list);
1142                 if (!num_jobs && !strcmp(p->name, "numjobs"))
1143                         continue;
1144                 if (p->value)
1145                         pos = p->value;
1146                 json_object_add_value_string(dir_object, p->name, pos);
1147         }
1148 }
1149
1150 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1151                                                    struct group_run_stats *rs,
1152                                                    struct flist_head *opt_list)
1153 {
1154         struct json_object *root, *tmp;
1155         struct jobs_eta *je;
1156         double io_u_dist[FIO_IO_U_MAP_NR];
1157         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1158         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1159         double usr_cpu, sys_cpu;
1160         int i;
1161         size_t size;
1162
1163         root = json_create_object();
1164         json_object_add_value_string(root, "jobname", ts->name);
1165         json_object_add_value_int(root, "groupid", ts->groupid);
1166         json_object_add_value_int(root, "error", ts->error);
1167
1168         /* ETA Info */
1169         je = get_jobs_eta(true, &size);
1170         if (je) {
1171                 json_object_add_value_int(root, "eta", je->eta_sec);
1172                 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1173         }
1174
1175         if (opt_list)
1176                 json_add_job_opts(root, "job options", opt_list, true);
1177
1178         add_ddir_status_json(ts, rs, DDIR_READ, root);
1179         add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1180         add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1181
1182         /* CPU Usage */
1183         if (ts->total_run_time) {
1184                 double runt = (double) ts->total_run_time;
1185
1186                 usr_cpu = (double) ts->usr_time * 100 / runt;
1187                 sys_cpu = (double) ts->sys_time * 100 / runt;
1188         } else {
1189                 usr_cpu = 0;
1190                 sys_cpu = 0;
1191         }
1192         json_object_add_value_float(root, "usr_cpu", usr_cpu);
1193         json_object_add_value_float(root, "sys_cpu", sys_cpu);
1194         json_object_add_value_int(root, "ctx", ts->ctx);
1195         json_object_add_value_int(root, "majf", ts->majf);
1196         json_object_add_value_int(root, "minf", ts->minf);
1197
1198
1199         /* Calc % distribution of IO depths, usecond, msecond latency */
1200         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1201         stat_calc_lat_u(ts, io_u_lat_u);
1202         stat_calc_lat_m(ts, io_u_lat_m);
1203
1204         tmp = json_create_object();
1205         json_object_add_value_object(root, "iodepth_level", tmp);
1206         /* Only show fixed 7 I/O depth levels*/
1207         for (i = 0; i < 7; i++) {
1208                 char name[20];
1209                 if (i < 6)
1210                         snprintf(name, 20, "%d", 1 << i);
1211                 else
1212                         snprintf(name, 20, ">=%d", 1 << i);
1213                 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1214         }
1215
1216         tmp = json_create_object();
1217         json_object_add_value_object(root, "latency_us", tmp);
1218         /* Microsecond latency */
1219         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1220                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1221                                  "250", "500", "750", "1000", };
1222                 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1223         }
1224         /* Millisecond latency */
1225         tmp = json_create_object();
1226         json_object_add_value_object(root, "latency_ms", tmp);
1227         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1228                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1229                                  "250", "500", "750", "1000", "2000",
1230                                  ">=2000", };
1231                 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1232         }
1233
1234         /* Additional output if continue_on_error set - default off*/
1235         if (ts->continue_on_error) {
1236                 json_object_add_value_int(root, "total_err", ts->total_err_count);
1237                 json_object_add_value_int(root, "first_error", ts->first_error);
1238         }
1239
1240         if (ts->latency_depth) {
1241                 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1242                 json_object_add_value_int(root, "latency_target", ts->latency_target);
1243                 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1244                 json_object_add_value_int(root, "latency_window", ts->latency_window);
1245         }
1246
1247         /* Additional output if description is set */
1248         if (strlen(ts->description))
1249                 json_object_add_value_string(root, "desc", ts->description);
1250
1251         if (ts->nr_block_infos) {
1252                 /* Block error histogram and types */
1253                 int len;
1254                 unsigned int *percentiles = NULL;
1255                 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1256
1257                 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1258                                              ts->percentile_list,
1259                                              &percentiles, block_state_counts);
1260
1261                 if (len) {
1262                         struct json_object *block, *percentile_object, *states;
1263                         int state;
1264                         block = json_create_object();
1265                         json_object_add_value_object(root, "block", block);
1266
1267                         percentile_object = json_create_object();
1268                         json_object_add_value_object(block, "percentiles",
1269                                                      percentile_object);
1270                         for (i = 0; i < len; i++) {
1271                                 char buf[20];
1272                                 snprintf(buf, sizeof(buf), "%f",
1273                                          ts->percentile_list[i].u.f);
1274                                 json_object_add_value_int(percentile_object,
1275                                                           (const char *)buf,
1276                                                           percentiles[i]);
1277                         }
1278
1279                         states = json_create_object();
1280                         json_object_add_value_object(block, "states", states);
1281                         for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1282                                 json_object_add_value_int(states,
1283                                         block_state_names[state],
1284                                         block_state_counts[state]);
1285                         }
1286                         free(percentiles);
1287                 }
1288         }
1289
1290         if (ts->ss_dur) {
1291                 struct json_object *data;
1292                 struct json_array *iops, *bw;
1293                 int i, j, k;
1294                 char ss_buf[64];
1295
1296                 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1297                         ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
1298                         ts->ss_state & __FIO_SS_SLOPE ? "_slope" : "",
1299                         (float) ts->ss_limit.u.f,
1300                         ts->ss_state & __FIO_SS_PCT ? "%" : "");
1301
1302                 tmp = json_create_object();
1303                 json_object_add_value_object(root, "steadystate", tmp);
1304                 json_object_add_value_string(tmp, "ss", ss_buf);
1305                 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1306                 json_object_add_value_int(tmp, "attained", (ts->ss_state & __FIO_SS_ATTAINED) > 0);
1307
1308                 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1309                         ts->ss_state & __FIO_SS_PCT ? "%" : "");
1310                 json_object_add_value_string(tmp, "criterion", ss_buf);
1311                 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1312                 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1313
1314                 data = json_create_object();
1315                 json_object_add_value_object(tmp, "data", data);
1316                 bw = json_create_array();
1317                 iops = json_create_array();
1318
1319                 /*
1320                 ** if ss was attained or the buffer is not full,
1321                 ** ss->head points to the first element in the list.
1322                 ** otherwise it actually points to the second element
1323                 ** in the list
1324                 */
1325                 if ((ts->ss_state & __FIO_SS_ATTAINED) || !(ts->ss_state & __FIO_SS_BUFFER_FULL))
1326                         j = ts->ss_head;
1327                 else
1328                         j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1329                 for (i = 0; i < ts->ss_dur; i++) {
1330                         k = (j + i) % ts->ss_dur;
1331                         json_array_add_value_int(bw, ts->ss_bw_data[k]);
1332                         json_array_add_value_int(iops, ts->ss_iops_data[k]);
1333                 }
1334                 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1335                 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1336                 json_object_add_value_array(data, "iops", iops);
1337                 json_object_add_value_array(data, "bw", bw);
1338         }
1339
1340         return root;
1341 }
1342
1343 static void show_thread_status_terse(struct thread_stat *ts,
1344                                      struct group_run_stats *rs,
1345                                      struct buf_output *out)
1346 {
1347         if (terse_version == 2)
1348                 show_thread_status_terse_v2(ts, rs, out);
1349         else if (terse_version == 3 || terse_version == 4)
1350                 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1351         else
1352                 log_err("fio: bad terse version!? %d\n", terse_version);
1353 }
1354
1355 struct json_object *show_thread_status(struct thread_stat *ts,
1356                                        struct group_run_stats *rs,
1357                                        struct flist_head *opt_list,
1358                                        struct buf_output *out)
1359 {
1360         struct json_object *ret = NULL;
1361
1362         if (output_format & FIO_OUTPUT_TERSE)
1363                 show_thread_status_terse(ts, rs,  out);
1364         if (output_format & FIO_OUTPUT_JSON)
1365                 ret = show_thread_status_json(ts, rs, opt_list);
1366         if (output_format & FIO_OUTPUT_NORMAL)
1367                 show_thread_status_normal(ts, rs,  out);
1368
1369         return ret;
1370 }
1371
1372 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1373 {
1374         double mean, S;
1375
1376         if (src->samples == 0)
1377                 return;
1378
1379         dst->min_val = min(dst->min_val, src->min_val);
1380         dst->max_val = max(dst->max_val, src->max_val);
1381
1382         /*
1383          * Compute new mean and S after the merge
1384          * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1385          *  #Parallel_algorithm>
1386          */
1387         if (first) {
1388                 mean = src->mean.u.f;
1389                 S = src->S.u.f;
1390         } else {
1391                 double delta = src->mean.u.f - dst->mean.u.f;
1392
1393                 mean = ((src->mean.u.f * src->samples) +
1394                         (dst->mean.u.f * dst->samples)) /
1395                         (dst->samples + src->samples);
1396
1397                 S =  src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1398                         (dst->samples * src->samples) /
1399                         (dst->samples + src->samples);
1400         }
1401
1402         dst->samples += src->samples;
1403         dst->mean.u.f = mean;
1404         dst->S.u.f = S;
1405 }
1406
1407 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1408 {
1409         int i;
1410
1411         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1412                 if (dst->max_run[i] < src->max_run[i])
1413                         dst->max_run[i] = src->max_run[i];
1414                 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1415                         dst->min_run[i] = src->min_run[i];
1416                 if (dst->max_bw[i] < src->max_bw[i])
1417                         dst->max_bw[i] = src->max_bw[i];
1418                 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1419                         dst->min_bw[i] = src->min_bw[i];
1420
1421                 dst->io_kb[i] += src->io_kb[i];
1422                 dst->agg[i] += src->agg[i];
1423         }
1424
1425         if (!dst->kb_base)
1426                 dst->kb_base = src->kb_base;
1427         if (!dst->unit_base)
1428                 dst->unit_base = src->unit_base;
1429 }
1430
1431 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1432                       bool first)
1433 {
1434         int l, k;
1435
1436         for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1437                 if (!dst->unified_rw_rep) {
1438                         sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1439                         sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1440                         sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1441                         sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1442
1443                         dst->io_bytes[l] += src->io_bytes[l];
1444
1445                         if (dst->runtime[l] < src->runtime[l])
1446                                 dst->runtime[l] = src->runtime[l];
1447                 } else {
1448                         sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1449                         sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1450                         sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1451                         sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1452
1453                         dst->io_bytes[0] += src->io_bytes[l];
1454
1455                         if (dst->runtime[0] < src->runtime[l])
1456                                 dst->runtime[0] = src->runtime[l];
1457
1458                         /*
1459                          * We're summing to the same destination, so override
1460                          * 'first' after the first iteration of the loop
1461                          */
1462                         first = false;
1463                 }
1464         }
1465
1466         dst->usr_time += src->usr_time;
1467         dst->sys_time += src->sys_time;
1468         dst->ctx += src->ctx;
1469         dst->majf += src->majf;
1470         dst->minf += src->minf;
1471
1472         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1473                 dst->io_u_map[k] += src->io_u_map[k];
1474         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1475                 dst->io_u_submit[k] += src->io_u_submit[k];
1476         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1477                 dst->io_u_complete[k] += src->io_u_complete[k];
1478         for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1479                 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1480         for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1481                 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1482
1483         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1484                 if (!dst->unified_rw_rep) {
1485                         dst->total_io_u[k] += src->total_io_u[k];
1486                         dst->short_io_u[k] += src->short_io_u[k];
1487                         dst->drop_io_u[k] += src->drop_io_u[k];
1488                 } else {
1489                         dst->total_io_u[0] += src->total_io_u[k];
1490                         dst->short_io_u[0] += src->short_io_u[k];
1491                         dst->drop_io_u[0] += src->drop_io_u[k];
1492                 }
1493         }
1494
1495         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1496                 int m;
1497
1498                 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1499                         if (!dst->unified_rw_rep)
1500                                 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1501                         else
1502                                 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1503                 }
1504         }
1505
1506         dst->total_run_time += src->total_run_time;
1507         dst->total_submit += src->total_submit;
1508         dst->total_complete += src->total_complete;
1509 }
1510
1511 void init_group_run_stat(struct group_run_stats *gs)
1512 {
1513         int i;
1514         memset(gs, 0, sizeof(*gs));
1515
1516         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1517                 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1518 }
1519
1520 void init_thread_stat(struct thread_stat *ts)
1521 {
1522         int j;
1523
1524         memset(ts, 0, sizeof(*ts));
1525
1526         for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1527                 ts->lat_stat[j].min_val = -1UL;
1528                 ts->clat_stat[j].min_val = -1UL;
1529                 ts->slat_stat[j].min_val = -1UL;
1530                 ts->bw_stat[j].min_val = -1UL;
1531         }
1532         ts->groupid = -1;
1533 }
1534
1535 void __show_run_stats(void)
1536 {
1537         struct group_run_stats *runstats, *rs;
1538         struct thread_data *td;
1539         struct thread_stat *threadstats, *ts;
1540         int i, j, k, nr_ts, last_ts, idx;
1541         int kb_base_warned = 0;
1542         int unit_base_warned = 0;
1543         struct json_object *root = NULL;
1544         struct json_array *array = NULL;
1545         struct buf_output output[FIO_OUTPUT_NR];
1546         struct flist_head **opt_lists;
1547
1548         runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1549
1550         for (i = 0; i < groupid + 1; i++)
1551                 init_group_run_stat(&runstats[i]);
1552
1553         /*
1554          * find out how many threads stats we need. if group reporting isn't
1555          * enabled, it's one-per-td.
1556          */
1557         nr_ts = 0;
1558         last_ts = -1;
1559         for_each_td(td, i) {
1560                 if (!td->o.group_reporting) {
1561                         nr_ts++;
1562                         continue;
1563                 }
1564                 if (last_ts == td->groupid)
1565                         continue;
1566
1567                 last_ts = td->groupid;
1568                 nr_ts++;
1569         }
1570
1571         threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1572         opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1573
1574         for (i = 0; i < nr_ts; i++) {
1575                 init_thread_stat(&threadstats[i]);
1576                 opt_lists[i] = NULL;
1577         }
1578
1579         j = 0;
1580         last_ts = -1;
1581         idx = 0;
1582         for_each_td(td, i) {
1583                 if (idx && (!td->o.group_reporting ||
1584                     (td->o.group_reporting && last_ts != td->groupid))) {
1585                         idx = 0;
1586                         j++;
1587                 }
1588
1589                 last_ts = td->groupid;
1590
1591                 ts = &threadstats[j];
1592
1593                 ts->clat_percentiles = td->o.clat_percentiles;
1594                 ts->percentile_precision = td->o.percentile_precision;
1595                 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1596                 opt_lists[j] = &td->opt_list;
1597
1598                 idx++;
1599                 ts->members++;
1600
1601                 if (ts->groupid == -1) {
1602                         /*
1603                          * These are per-group shared already
1604                          */
1605                         strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1606                         if (td->o.description)
1607                                 strncpy(ts->description, td->o.description,
1608                                                 FIO_JOBDESC_SIZE - 1);
1609                         else
1610                                 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1611
1612                         /*
1613                          * If multiple entries in this group, this is
1614                          * the first member.
1615                          */
1616                         ts->thread_number = td->thread_number;
1617                         ts->groupid = td->groupid;
1618
1619                         /*
1620                          * first pid in group, not very useful...
1621                          */
1622                         ts->pid = td->pid;
1623
1624                         ts->kb_base = td->o.kb_base;
1625                         ts->unit_base = td->o.unit_base;
1626                         ts->unified_rw_rep = td->o.unified_rw_rep;
1627                 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1628                         log_info("fio: kb_base differs for jobs in group, using"
1629                                  " %u as the base\n", ts->kb_base);
1630                         kb_base_warned = 1;
1631                 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1632                         log_info("fio: unit_base differs for jobs in group, using"
1633                                  " %u as the base\n", ts->unit_base);
1634                         unit_base_warned = 1;
1635                 }
1636
1637                 ts->continue_on_error = td->o.continue_on_error;
1638                 ts->total_err_count += td->total_err_count;
1639                 ts->first_error = td->first_error;
1640                 if (!ts->error) {
1641                         if (!td->error && td->o.continue_on_error &&
1642                             td->first_error) {
1643                                 ts->error = td->first_error;
1644                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1645                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1646                         } else  if (td->error) {
1647                                 ts->error = td->error;
1648                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1649                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1650                         }
1651                 }
1652
1653                 ts->latency_depth = td->latency_qd;
1654                 ts->latency_target = td->o.latency_target;
1655                 ts->latency_percentile = td->o.latency_percentile;
1656                 ts->latency_window = td->o.latency_window;
1657
1658                 ts->nr_block_infos = td->ts.nr_block_infos;
1659                 for (k = 0; k < ts->nr_block_infos; k++)
1660                         ts->block_infos[k] = td->ts.block_infos[k];
1661
1662                 sum_thread_stats(ts, &td->ts, idx == 1);
1663
1664                 if (td->o.ss_dur) {
1665                         ts->ss_state = td->ss.state;
1666                         ts->ss_dur = td->ss.dur;
1667                         ts->ss_head = td->ss.head;
1668                         ts->ss_bw_data = td->ss.bw_data;
1669                         ts->ss_iops_data = td->ss.iops_data;
1670                         ts->ss_limit.u.f = td->ss.limit;
1671                         ts->ss_slope.u.f = td->ss.slope;
1672                         ts->ss_deviation.u.f = td->ss.deviation;
1673                         ts->ss_criterion.u.f = td->ss.criterion;
1674                 }
1675                 else
1676                         ts->ss_dur = ts->ss_state = 0;
1677         }
1678
1679         for (i = 0; i < nr_ts; i++) {
1680                 unsigned long long bw;
1681
1682                 ts = &threadstats[i];
1683                 if (ts->groupid == -1)
1684                         continue;
1685                 rs = &runstats[ts->groupid];
1686                 rs->kb_base = ts->kb_base;
1687                 rs->unit_base = ts->unit_base;
1688                 rs->unified_rw_rep += ts->unified_rw_rep;
1689
1690                 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1691                         if (!ts->runtime[j])
1692                                 continue;
1693                         if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1694                                 rs->min_run[j] = ts->runtime[j];
1695                         if (ts->runtime[j] > rs->max_run[j])
1696                                 rs->max_run[j] = ts->runtime[j];
1697
1698                         bw = 0;
1699                         if (ts->runtime[j]) {
1700                                 unsigned long runt = ts->runtime[j];
1701                                 unsigned long long kb;
1702
1703                                 kb = ts->io_bytes[j] / rs->kb_base;
1704                                 bw = kb * 1000 / runt;
1705                         }
1706                         if (bw < rs->min_bw[j])
1707                                 rs->min_bw[j] = bw;
1708                         if (bw > rs->max_bw[j])
1709                                 rs->max_bw[j] = bw;
1710
1711                         rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1712                 }
1713         }
1714
1715         for (i = 0; i < groupid + 1; i++) {
1716                 int ddir;
1717
1718                 rs = &runstats[i];
1719
1720                 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1721                         if (rs->max_run[ddir])
1722                                 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1723                                                 rs->max_run[ddir];
1724                 }
1725         }
1726
1727         for (i = 0; i < FIO_OUTPUT_NR; i++)
1728                 buf_output_init(&output[i]);
1729
1730         /*
1731          * don't overwrite last signal output
1732          */
1733         if (output_format & FIO_OUTPUT_NORMAL)
1734                 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1735         if (output_format & FIO_OUTPUT_JSON) {
1736                 struct thread_data *global;
1737                 char time_buf[32];
1738                 struct timeval now;
1739                 unsigned long long ms_since_epoch;
1740
1741                 gettimeofday(&now, NULL);
1742                 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1743                                  (unsigned long long)(now.tv_usec) / 1000;
1744
1745                 os_ctime_r((const time_t *) &now.tv_sec, time_buf,
1746                                 sizeof(time_buf));
1747                 if (time_buf[strlen(time_buf) - 1] == '\n')
1748                         time_buf[strlen(time_buf) - 1] = '\0';
1749
1750                 root = json_create_object();
1751                 json_object_add_value_string(root, "fio version", fio_version_string);
1752                 json_object_add_value_int(root, "timestamp", now.tv_sec);
1753                 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1754                 json_object_add_value_string(root, "time", time_buf);
1755                 global = get_global_options();
1756                 json_add_job_opts(root, "global options", &global->opt_list, false);
1757                 array = json_create_array();
1758                 json_object_add_value_array(root, "jobs", array);
1759         }
1760
1761         if (is_backend)
1762                 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1763
1764         for (i = 0; i < nr_ts; i++) {
1765                 ts = &threadstats[i];
1766                 rs = &runstats[ts->groupid];
1767
1768                 if (is_backend) {
1769                         fio_server_send_job_options(opt_lists[i], i);
1770                         fio_server_send_ts(ts, rs);
1771                 } else {
1772                         if (output_format & FIO_OUTPUT_TERSE)
1773                                 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1774                         if (output_format & FIO_OUTPUT_JSON) {
1775                                 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1776                                 json_array_add_value_object(array, tmp);
1777                         }
1778                         if (output_format & FIO_OUTPUT_NORMAL)
1779                                 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1780                 }
1781         }
1782         if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1783                 /* disk util stats, if any */
1784                 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1785
1786                 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1787
1788                 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1789                 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1790                 json_free_object(root);
1791         }
1792
1793         for (i = 0; i < groupid + 1; i++) {
1794                 rs = &runstats[i];
1795
1796                 rs->groupid = i;
1797                 if (is_backend)
1798                         fio_server_send_gs(rs);
1799                 else if (output_format & FIO_OUTPUT_NORMAL)
1800                         show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1801         }
1802
1803         if (is_backend)
1804                 fio_server_send_du();
1805         else if (output_format & FIO_OUTPUT_NORMAL) {
1806                 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1807                 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1808         }
1809
1810         for (i = 0; i < FIO_OUTPUT_NR; i++) {
1811                 buf_output_flush(&output[i]);
1812                 buf_output_free(&output[i]);
1813         }
1814
1815         log_info_flush();
1816         free(runstats);
1817         free(threadstats);
1818         free(opt_lists);
1819 }
1820
1821 void show_run_stats(void)
1822 {
1823         fio_mutex_down(stat_mutex);
1824         __show_run_stats();
1825         fio_mutex_up(stat_mutex);
1826 }
1827
1828 void __show_running_run_stats(void)
1829 {
1830         struct thread_data *td;
1831         unsigned long long *rt;
1832         struct timeval tv;
1833         int i;
1834
1835         fio_mutex_down(stat_mutex);
1836
1837         rt = malloc(thread_number * sizeof(unsigned long long));
1838         fio_gettime(&tv, NULL);
1839
1840         for_each_td(td, i) {
1841                 td->update_rusage = 1;
1842                 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1843                 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1844                 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1845                 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1846
1847                 rt[i] = mtime_since(&td->start, &tv);
1848                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1849                         td->ts.runtime[DDIR_READ] += rt[i];
1850                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1851                         td->ts.runtime[DDIR_WRITE] += rt[i];
1852                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1853                         td->ts.runtime[DDIR_TRIM] += rt[i];
1854         }
1855
1856         for_each_td(td, i) {
1857                 if (td->runstate >= TD_EXITED)
1858                         continue;
1859                 if (td->rusage_sem) {
1860                         td->update_rusage = 1;
1861                         fio_mutex_down(td->rusage_sem);
1862                 }
1863                 td->update_rusage = 0;
1864         }
1865
1866         __show_run_stats();
1867
1868         for_each_td(td, i) {
1869                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1870                         td->ts.runtime[DDIR_READ] -= rt[i];
1871                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1872                         td->ts.runtime[DDIR_WRITE] -= rt[i];
1873                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1874                         td->ts.runtime[DDIR_TRIM] -= rt[i];
1875         }
1876
1877         free(rt);
1878         fio_mutex_up(stat_mutex);
1879 }
1880
1881 static int status_interval_init;
1882 static struct timeval status_time;
1883 static int status_file_disabled;
1884
1885 #define FIO_STATUS_FILE         "fio-dump-status"
1886
1887 static int check_status_file(void)
1888 {
1889         struct stat sb;
1890         const char *temp_dir;
1891         char fio_status_file_path[PATH_MAX];
1892
1893         if (status_file_disabled)
1894                 return 0;
1895
1896         temp_dir = getenv("TMPDIR");
1897         if (temp_dir == NULL) {
1898                 temp_dir = getenv("TEMP");
1899                 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1900                         temp_dir = NULL;
1901         }
1902         if (temp_dir == NULL)
1903                 temp_dir = "/tmp";
1904
1905         snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1906
1907         if (stat(fio_status_file_path, &sb))
1908                 return 0;
1909
1910         if (unlink(fio_status_file_path) < 0) {
1911                 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1912                                                         strerror(errno));
1913                 log_err("fio: disabling status file updates\n");
1914                 status_file_disabled = 1;
1915         }
1916
1917         return 1;
1918 }
1919
1920 void check_for_running_stats(void)
1921 {
1922         if (status_interval) {
1923                 if (!status_interval_init) {
1924                         fio_gettime(&status_time, NULL);
1925                         status_interval_init = 1;
1926                 } else if (mtime_since_now(&status_time) >= status_interval) {
1927                         show_running_run_stats();
1928                         fio_gettime(&status_time, NULL);
1929                         return;
1930                 }
1931         }
1932         if (check_status_file()) {
1933                 show_running_run_stats();
1934                 return;
1935         }
1936 }
1937
1938 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1939 {
1940         double val = data;
1941         double delta;
1942
1943         if (data > is->max_val)
1944                 is->max_val = data;
1945         if (data < is->min_val)
1946                 is->min_val = data;
1947
1948         delta = val - is->mean.u.f;
1949         if (delta) {
1950                 is->mean.u.f += delta / (is->samples + 1.0);
1951                 is->S.u.f += delta * (val - is->mean.u.f);
1952         }
1953
1954         is->samples++;
1955 }
1956
1957 /*
1958  * Return a struct io_logs, which is added to the tail of the log
1959  * list for 'iolog'.
1960  */
1961 static struct io_logs *get_new_log(struct io_log *iolog)
1962 {
1963         size_t new_size, new_samples;
1964         struct io_logs *cur_log;
1965
1966         /*
1967          * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
1968          * forever
1969          */
1970         if (!iolog->cur_log_max)
1971                 new_samples = DEF_LOG_ENTRIES;
1972         else {
1973                 new_samples = iolog->cur_log_max * 2;
1974                 if (new_samples > MAX_LOG_ENTRIES)
1975                         new_samples = MAX_LOG_ENTRIES;
1976         }
1977
1978         new_size = new_samples * log_entry_sz(iolog);
1979
1980         cur_log = smalloc(sizeof(*cur_log));
1981         if (cur_log) {
1982                 INIT_FLIST_HEAD(&cur_log->list);
1983                 cur_log->log = malloc(new_size);
1984                 if (cur_log->log) {
1985                         cur_log->nr_samples = 0;
1986                         cur_log->max_samples = new_samples;
1987                         flist_add_tail(&cur_log->list, &iolog->io_logs);
1988                         iolog->cur_log_max = new_samples;
1989                         return cur_log;
1990                 }
1991                 sfree(cur_log);
1992         }
1993
1994         return NULL;
1995 }
1996
1997 /*
1998  * Add and return a new log chunk, or return current log if big enough
1999  */
2000 static struct io_logs *regrow_log(struct io_log *iolog)
2001 {
2002         struct io_logs *cur_log;
2003         int i;
2004
2005         if (!iolog || iolog->disabled)
2006                 goto disable;
2007
2008         cur_log = iolog_cur_log(iolog);
2009         if (!cur_log) {
2010                 cur_log = get_new_log(iolog);
2011                 if (!cur_log)
2012                         return NULL;
2013         }
2014
2015         if (cur_log->nr_samples < cur_log->max_samples)
2016                 return cur_log;
2017
2018         /*
2019          * No room for a new sample. If we're compressing on the fly, flush
2020          * out the current chunk
2021          */
2022         if (iolog->log_gz) {
2023                 if (iolog_cur_flush(iolog, cur_log)) {
2024                         log_err("fio: failed flushing iolog! Will stop logging.\n");
2025                         return NULL;
2026                 }
2027         }
2028
2029         /*
2030          * Get a new log array, and add to our list
2031          */
2032         cur_log = get_new_log(iolog);
2033         if (!cur_log) {
2034                 log_err("fio: failed extending iolog! Will stop logging.\n");
2035                 return NULL;
2036         }
2037
2038         if (!iolog->pending || !iolog->pending->nr_samples)
2039                 return cur_log;
2040
2041         /*
2042          * Flush pending items to new log
2043          */
2044         for (i = 0; i < iolog->pending->nr_samples; i++) {
2045                 struct io_sample *src, *dst;
2046
2047                 src = get_sample(iolog, iolog->pending, i);
2048                 dst = get_sample(iolog, cur_log, i);
2049                 memcpy(dst, src, log_entry_sz(iolog));
2050         }
2051         cur_log->nr_samples = iolog->pending->nr_samples;
2052
2053         iolog->pending->nr_samples = 0;
2054         return cur_log;
2055 disable:
2056         if (iolog)
2057                 iolog->disabled = true;
2058         return NULL;
2059 }
2060
2061 void regrow_logs(struct thread_data *td)
2062 {
2063         regrow_log(td->slat_log);
2064         regrow_log(td->clat_log);
2065         regrow_log(td->clat_hist_log);
2066         regrow_log(td->lat_log);
2067         regrow_log(td->bw_log);
2068         regrow_log(td->iops_log);
2069         td->flags &= ~TD_F_REGROW_LOGS;
2070 }
2071
2072 static struct io_logs *get_cur_log(struct io_log *iolog)
2073 {
2074         struct io_logs *cur_log;
2075
2076         cur_log = iolog_cur_log(iolog);
2077         if (!cur_log) {
2078                 cur_log = get_new_log(iolog);
2079                 if (!cur_log)
2080                         return NULL;
2081         }
2082
2083         if (cur_log->nr_samples < cur_log->max_samples)
2084                 return cur_log;
2085
2086         /*
2087          * Out of space. If we're in IO offload mode, or we're not doing
2088          * per unit logging (hence logging happens outside of the IO thread
2089          * as well), add a new log chunk inline. If we're doing inline
2090          * submissions, flag 'td' as needing a log regrow and we'll take
2091          * care of it on the submission side.
2092          */
2093         if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
2094             !per_unit_log(iolog))
2095                 return regrow_log(iolog);
2096
2097         iolog->td->flags |= TD_F_REGROW_LOGS;
2098         assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2099         return iolog->pending;
2100 }
2101
2102 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2103                              enum fio_ddir ddir, unsigned int bs,
2104                              unsigned long t, uint64_t offset)
2105 {
2106         struct io_logs *cur_log;
2107
2108         if (iolog->disabled)
2109                 return;
2110         if (flist_empty(&iolog->io_logs))
2111                 iolog->avg_last = t;
2112
2113         cur_log = get_cur_log(iolog);
2114         if (cur_log) {
2115                 struct io_sample *s;
2116
2117                 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2118
2119                 s->data = data;
2120                 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2121                 io_sample_set_ddir(iolog, s, ddir);
2122                 s->bs = bs;
2123
2124                 if (iolog->log_offset) {
2125                         struct io_sample_offset *so = (void *) s;
2126
2127                         so->offset = offset;
2128                 }
2129
2130                 cur_log->nr_samples++;
2131                 return;
2132         }
2133
2134         iolog->disabled = true;
2135 }
2136
2137 static inline void reset_io_stat(struct io_stat *ios)
2138 {
2139         ios->max_val = ios->min_val = ios->samples = 0;
2140         ios->mean.u.f = ios->S.u.f = 0;
2141 }
2142
2143 void reset_io_stats(struct thread_data *td)
2144 {
2145         struct thread_stat *ts = &td->ts;
2146         int i, j;
2147
2148         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2149                 reset_io_stat(&ts->clat_stat[i]);
2150                 reset_io_stat(&ts->slat_stat[i]);
2151                 reset_io_stat(&ts->lat_stat[i]);
2152                 reset_io_stat(&ts->bw_stat[i]);
2153                 reset_io_stat(&ts->iops_stat[i]);
2154
2155                 ts->io_bytes[i] = 0;
2156                 ts->runtime[i] = 0;
2157
2158                 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
2159                         ts->io_u_plat[i][j] = 0;
2160         }
2161
2162         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2163                 ts->io_u_map[i] = 0;
2164                 ts->io_u_submit[i] = 0;
2165                 ts->io_u_complete[i] = 0;
2166                 ts->io_u_lat_u[i] = 0;
2167                 ts->io_u_lat_m[i] = 0;
2168                 ts->total_submit = 0;
2169                 ts->total_complete = 0;
2170         }
2171
2172         for (i = 0; i < 3; i++) {
2173                 ts->total_io_u[i] = 0;
2174                 ts->short_io_u[i] = 0;
2175                 ts->drop_io_u[i] = 0;
2176         }
2177 }
2178
2179 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2180                               unsigned long elapsed, bool log_max)
2181 {
2182         /*
2183          * Note an entry in the log. Use the mean from the logged samples,
2184          * making sure to properly round up. Only write a log entry if we
2185          * had actual samples done.
2186          */
2187         if (iolog->avg_window[ddir].samples) {
2188                 union io_sample_data data;
2189
2190                 if (log_max)
2191                         data.val = iolog->avg_window[ddir].max_val;
2192                 else
2193                         data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2194
2195                 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2196         }
2197
2198         reset_io_stat(&iolog->avg_window[ddir]);
2199 }
2200
2201 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2202                              bool log_max)
2203 {
2204         int ddir;
2205
2206         for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2207                 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2208 }
2209
2210 static long add_log_sample(struct thread_data *td, struct io_log *iolog,
2211                            union io_sample_data data, enum fio_ddir ddir,
2212                            unsigned int bs, uint64_t offset)
2213 {
2214         unsigned long elapsed, this_window;
2215
2216         if (!ddir_rw(ddir))
2217                 return 0;
2218
2219         elapsed = mtime_since_now(&td->epoch);
2220
2221         /*
2222          * If no time averaging, just add the log sample.
2223          */
2224         if (!iolog->avg_msec) {
2225                 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2226                 return 0;
2227         }
2228
2229         /*
2230          * Add the sample. If the time period has passed, then
2231          * add that entry to the log and clear.
2232          */
2233         add_stat_sample(&iolog->avg_window[ddir], data.val);
2234
2235         /*
2236          * If period hasn't passed, adding the above sample is all we
2237          * need to do.
2238          */
2239         this_window = elapsed - iolog->avg_last;
2240         if (elapsed < iolog->avg_last)
2241                 return iolog->avg_last - elapsed;
2242         else if (this_window < iolog->avg_msec) {
2243                 int diff = iolog->avg_msec - this_window;
2244
2245                 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2246                         return diff;
2247         }
2248
2249         _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2250
2251         iolog->avg_last = elapsed - (this_window - iolog->avg_msec);
2252         return iolog->avg_msec;
2253 }
2254
2255 void finalize_logs(struct thread_data *td, bool unit_logs)
2256 {
2257         unsigned long elapsed;
2258
2259         elapsed = mtime_since_now(&td->epoch);
2260
2261         if (td->clat_log && unit_logs)
2262                 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2263         if (td->slat_log && unit_logs)
2264                 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2265         if (td->lat_log && unit_logs)
2266                 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2267         if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2268                 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2269         if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2270                 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2271 }
2272
2273 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned int bs)
2274 {
2275         struct io_log *iolog;
2276
2277         if (!ddir_rw(ddir))
2278                 return;
2279
2280         iolog = agg_io_log[ddir];
2281         __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2282 }
2283
2284 static void add_clat_percentile_sample(struct thread_stat *ts,
2285                                 unsigned long usec, enum fio_ddir ddir)
2286 {
2287         unsigned int idx = plat_val_to_idx(usec);
2288         assert(idx < FIO_IO_U_PLAT_NR);
2289
2290         ts->io_u_plat[ddir][idx]++;
2291 }
2292
2293 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2294                      unsigned long usec, unsigned int bs, uint64_t offset)
2295 {
2296         unsigned long elapsed, this_window;
2297         struct thread_stat *ts = &td->ts;
2298         struct io_log *iolog = td->clat_hist_log;
2299
2300         td_io_u_lock(td);
2301
2302         add_stat_sample(&ts->clat_stat[ddir], usec);
2303
2304         if (td->clat_log)
2305                 add_log_sample(td, td->clat_log, sample_val(usec), ddir, bs,
2306                                offset);
2307
2308         if (ts->clat_percentiles)
2309                 add_clat_percentile_sample(ts, usec, ddir);
2310
2311         if (iolog && iolog->hist_msec) {
2312                 struct io_hist *hw = &iolog->hist_window[ddir];
2313
2314                 hw->samples++;
2315                 elapsed = mtime_since_now(&td->epoch);
2316                 if (!hw->hist_last)
2317                         hw->hist_last = elapsed;
2318                 this_window = elapsed - hw->hist_last;
2319
2320                 if (this_window >= iolog->hist_msec) {
2321                         unsigned int *io_u_plat;
2322                         struct io_u_plat_entry *dst;
2323
2324                         /*
2325                          * Make a byte-for-byte copy of the latency histogram
2326                          * stored in td->ts.io_u_plat[ddir], recording it in a
2327                          * log sample. Note that the matching call to free() is
2328                          * located in iolog.c after printing this sample to the
2329                          * log file.
2330                          */
2331                         io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
2332                         dst = malloc(sizeof(struct io_u_plat_entry));
2333                         memcpy(&(dst->io_u_plat), io_u_plat,
2334                                 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2335                         flist_add(&dst->list, &hw->list);
2336                         __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2337                                                 elapsed, offset);
2338
2339                         /*
2340                          * Update the last time we recorded as being now, minus
2341                          * any drift in time we encountered before actually
2342                          * making the record.
2343                          */
2344                         hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2345                         hw->samples = 0;
2346                 }
2347         }
2348
2349         td_io_u_unlock(td);
2350 }
2351
2352 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2353                      unsigned long usec, unsigned int bs, uint64_t offset)
2354 {
2355         struct thread_stat *ts = &td->ts;
2356
2357         if (!ddir_rw(ddir))
2358                 return;
2359
2360         td_io_u_lock(td);
2361
2362         add_stat_sample(&ts->slat_stat[ddir], usec);
2363
2364         if (td->slat_log)
2365                 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2366
2367         td_io_u_unlock(td);
2368 }
2369
2370 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2371                     unsigned long usec, unsigned int bs, uint64_t offset)
2372 {
2373         struct thread_stat *ts = &td->ts;
2374
2375         if (!ddir_rw(ddir))
2376                 return;
2377
2378         td_io_u_lock(td);
2379
2380         add_stat_sample(&ts->lat_stat[ddir], usec);
2381
2382         if (td->lat_log)
2383                 add_log_sample(td, td->lat_log, sample_val(usec), ddir, bs,
2384                                offset);
2385
2386         td_io_u_unlock(td);
2387 }
2388
2389 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2390                    unsigned int bytes, unsigned long spent)
2391 {
2392         struct thread_stat *ts = &td->ts;
2393         unsigned long rate;
2394
2395         if (spent)
2396                 rate = bytes * 1000 / spent;
2397         else
2398                 rate = 0;
2399
2400         td_io_u_lock(td);
2401
2402         add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2403
2404         if (td->bw_log)
2405                 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2406                                bytes, io_u->offset);
2407
2408         td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2409         td_io_u_unlock(td);
2410 }
2411
2412 static int add_bw_samples(struct thread_data *td, struct timeval *t)
2413 {
2414         struct thread_stat *ts = &td->ts;
2415         unsigned long spent, rate;
2416         enum fio_ddir ddir;
2417         unsigned int next, next_log;
2418
2419         next_log = td->o.bw_avg_time;
2420
2421         spent = mtime_since(&td->bw_sample_time, t);
2422         if (spent < td->o.bw_avg_time &&
2423             td->o.bw_avg_time - spent >= LOG_MSEC_SLACK)
2424                 return td->o.bw_avg_time - spent;
2425
2426         td_io_u_lock(td);
2427
2428         /*
2429          * Compute both read and write rates for the interval.
2430          */
2431         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2432                 uint64_t delta;
2433
2434                 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2435                 if (!delta)
2436                         continue; /* No entries for interval */
2437
2438                 if (spent)
2439                         rate = delta * 1000 / spent / 1024;
2440                 else
2441                         rate = 0;
2442
2443                 add_stat_sample(&ts->bw_stat[ddir], rate);
2444
2445                 if (td->bw_log) {
2446                         unsigned int bs = 0;
2447
2448                         if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2449                                 bs = td->o.min_bs[ddir];
2450
2451                         next = add_log_sample(td, td->bw_log, sample_val(rate),
2452                                               ddir, bs, 0);
2453                         next_log = min(next_log, next);
2454                 }
2455
2456                 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2457         }
2458
2459         timeval_add_msec(&td->bw_sample_time, td->o.bw_avg_time);
2460
2461         td_io_u_unlock(td);
2462
2463         if (spent <= td->o.bw_avg_time)
2464                 return min(next_log, td->o.bw_avg_time);
2465
2466         next = td->o.bw_avg_time - (1 + spent - td->o.bw_avg_time);
2467         return min(next, next_log);
2468 }
2469
2470 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2471                      unsigned int bytes)
2472 {
2473         struct thread_stat *ts = &td->ts;
2474
2475         td_io_u_lock(td);
2476
2477         add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2478
2479         if (td->iops_log)
2480                 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2481                                bytes, io_u->offset);
2482
2483         td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2484         td_io_u_unlock(td);
2485 }
2486
2487 static int add_iops_samples(struct thread_data *td, struct timeval *t)
2488 {
2489         struct thread_stat *ts = &td->ts;
2490         unsigned long spent, iops;
2491         enum fio_ddir ddir;
2492         unsigned int next, next_log;
2493
2494         next_log = td->o.iops_avg_time;
2495
2496         spent = mtime_since(&td->iops_sample_time, t);
2497         if (spent < td->o.iops_avg_time &&
2498             td->o.iops_avg_time - spent >= LOG_MSEC_SLACK)
2499                 return td->o.iops_avg_time - spent;
2500
2501         td_io_u_lock(td);
2502
2503         /*
2504          * Compute both read and write rates for the interval.
2505          */
2506         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2507                 uint64_t delta;
2508
2509                 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2510                 if (!delta)
2511                         continue; /* No entries for interval */
2512
2513                 if (spent)
2514                         iops = (delta * 1000) / spent;
2515                 else
2516                         iops = 0;
2517
2518                 add_stat_sample(&ts->iops_stat[ddir], iops);
2519
2520                 if (td->iops_log) {
2521                         unsigned int bs = 0;
2522
2523                         if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2524                                 bs = td->o.min_bs[ddir];
2525
2526                         next = add_log_sample(td, td->iops_log,
2527                                               sample_val(iops), ddir, bs, 0);
2528                         next_log = min(next_log, next);
2529                 }
2530
2531                 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2532         }
2533
2534         timeval_add_msec(&td->iops_sample_time, td->o.iops_avg_time);
2535
2536         td_io_u_unlock(td);
2537
2538         if (spent <= td->o.iops_avg_time)
2539                 return min(next_log, td->o.iops_avg_time);
2540
2541         next = td->o.iops_avg_time - (1 + spent - td->o.iops_avg_time);
2542         return min(next, next_log);
2543 }
2544
2545 /*
2546  * Returns msecs to next event
2547  */
2548 int calc_log_samples(void)
2549 {
2550         struct thread_data *td;
2551         unsigned int next = ~0U, tmp;
2552         struct timeval now;
2553         int i;
2554
2555         fio_gettime(&now, NULL);
2556
2557         for_each_td(td, i) {
2558                 if (in_ramp_time(td) ||
2559                     !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2560                         next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2561                         continue;
2562                 }
2563                 if (td->bw_log && !per_unit_log(td->bw_log)) {
2564                         tmp = add_bw_samples(td, &now);
2565                         if (tmp < next)
2566                                 next = tmp;
2567                 }
2568                 if (td->iops_log && !per_unit_log(td->iops_log)) {
2569                         tmp = add_iops_samples(td, &now);
2570                         if (tmp < next)
2571                                 next = tmp;
2572                 }
2573         }
2574
2575         return next == ~0U ? 0 : next;
2576 }
2577
2578 void stat_init(void)
2579 {
2580         stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2581 }
2582
2583 void stat_exit(void)
2584 {
2585         /*
2586          * When we have the mutex, we know out-of-band access to it
2587          * have ended.
2588          */
2589         fio_mutex_down(stat_mutex);
2590         fio_mutex_remove(stat_mutex);
2591 }
2592
2593 /*
2594  * Called from signal handler. Wake up status thread.
2595  */
2596 void show_running_run_stats(void)
2597 {
2598         helper_do_stat();
2599 }
2600
2601 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2602 {
2603         /* Ignore io_u's which span multiple blocks--they will just get
2604          * inaccurate counts. */
2605         int idx = (io_u->offset - io_u->file->file_offset)
2606                         / td->o.bs[DDIR_TRIM];
2607         uint32_t *info = &td->ts.block_infos[idx];
2608         assert(idx < td->ts.nr_block_infos);
2609         return info;
2610 }