9 #include "lib/ieee754.h"
11 #include "lib/getrusage.h"
14 #include "lib/output_buffer.h"
15 #include "helper_thread.h"
19 #define LOG_MSEC_SLACK 1
21 struct fio_sem *stat_sem;
23 void clear_rusage_stat(struct thread_data *td)
25 struct thread_stat *ts = &td->ts;
27 fio_getrusage(&td->ru_start);
28 ts->usr_time = ts->sys_time = 0;
30 ts->minf = ts->majf = 0;
33 void update_rusage_stat(struct thread_data *td)
35 struct thread_stat *ts = &td->ts;
37 fio_getrusage(&td->ru_end);
38 ts->usr_time += mtime_since_tv(&td->ru_start.ru_utime,
39 &td->ru_end.ru_utime);
40 ts->sys_time += mtime_since_tv(&td->ru_start.ru_stime,
41 &td->ru_end.ru_stime);
42 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
43 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
44 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
45 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
47 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
51 * Given a latency, return the index of the corresponding bucket in
52 * the structure tracking percentiles.
54 * (1) find the group (and error bits) that the value (latency)
55 * belongs to by looking at its MSB. (2) find the bucket number in the
56 * group by looking at the index bits.
59 static unsigned int plat_val_to_idx(unsigned long long val)
61 unsigned int msb, error_bits, base, offset, idx;
63 /* Find MSB starting from bit 0 */
67 msb = (sizeof(val)*8) - __builtin_clzll(val) - 1;
70 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
71 * all bits of the sample as index
73 if (msb <= FIO_IO_U_PLAT_BITS)
76 /* Compute the number of error bits to discard*/
77 error_bits = msb - FIO_IO_U_PLAT_BITS;
79 /* Compute the number of buckets before the group */
80 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
83 * Discard the error bits and apply the mask to find the
84 * index for the buckets in the group
86 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
88 /* Make sure the index does not exceed (array size - 1) */
89 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
90 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
96 * Convert the given index of the bucket array to the value
97 * represented by the bucket
99 static unsigned long long plat_idx_to_val(unsigned int idx)
101 unsigned int error_bits;
102 unsigned long long k, base;
104 assert(idx < FIO_IO_U_PLAT_NR);
106 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
107 * all bits of the sample as index */
108 if (idx < (FIO_IO_U_PLAT_VAL << 1))
111 /* Find the group and compute the minimum value of that group */
112 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
113 base = ((unsigned long long) 1) << (error_bits + FIO_IO_U_PLAT_BITS);
115 /* Find its bucket number of the group */
116 k = idx % FIO_IO_U_PLAT_VAL;
118 /* Return the mean of the range of the bucket */
119 return base + ((k + 0.5) * (1 << error_bits));
122 static int double_cmp(const void *a, const void *b)
124 const fio_fp64_t fa = *(const fio_fp64_t *) a;
125 const fio_fp64_t fb = *(const fio_fp64_t *) b;
130 else if (fa.u.f < fb.u.f)
136 unsigned int calc_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
137 fio_fp64_t *plist, unsigned long long **output,
138 unsigned long long *maxv, unsigned long long *minv)
140 unsigned long long sum = 0;
141 unsigned int len, i, j = 0;
142 unsigned long long *ovals = NULL;
149 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
156 * Sort the percentile list. Note that it may already be sorted if
157 * we are using the default values, but since it's a short list this
158 * isn't a worry. Also note that this does not work for NaN values.
161 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
163 ovals = malloc(len * sizeof(*ovals));
168 * Calculate bucket values, note down max and min values
171 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
173 while (sum >= (plist[j].u.f / 100.0 * nr)) {
174 assert(plist[j].u.f <= 100.0);
176 ovals[j] = plat_idx_to_val(i);
177 if (ovals[j] < *minv)
179 if (ovals[j] > *maxv)
182 is_last = (j == len - 1) != 0;
195 * Find and display the p-th percentile of clat
197 static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
198 fio_fp64_t *plist, unsigned int precision,
199 const char *pre, struct buf_output *out)
201 unsigned int divisor, len, i, j = 0;
202 unsigned long long minv, maxv;
203 unsigned long long *ovals;
204 int per_line, scale_down, time_width;
208 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
213 * We default to nsecs, but if the value range is such that we
214 * should scale down to usecs or msecs, do that.
216 if (minv > 2000000 && maxv > 99999999ULL) {
219 log_buf(out, " %s percentiles (msec):\n |", pre);
220 } else if (minv > 2000 && maxv > 99999) {
223 log_buf(out, " %s percentiles (usec):\n |", pre);
227 log_buf(out, " %s percentiles (nsec):\n |", pre);
231 time_width = max(5, (int) (log10(maxv / divisor) + 1));
232 snprintf(fmt, sizeof(fmt), " %%%u.%ufth=[%%%dllu]%%c", precision + 3,
233 precision, time_width);
234 /* fmt will be something like " %5.2fth=[%4llu]%c" */
235 per_line = (80 - 7) / (precision + 10 + time_width);
237 for (j = 0; j < len; j++) {
239 if (j != 0 && (j % per_line) == 0)
242 /* end of the list */
243 is_last = (j == len - 1) != 0;
245 for (i = 0; i < scale_down; i++)
246 ovals[j] = (ovals[j] + 999) / 1000;
248 log_buf(out, fmt, plist[j].u.f, ovals[j], is_last ? '\n' : ',');
253 if ((j % per_line) == per_line - 1) /* for formatting */
262 bool calc_lat(struct io_stat *is, unsigned long long *min,
263 unsigned long long *max, double *mean, double *dev)
265 double n = (double) is->samples;
272 *mean = is->mean.u.f;
275 *dev = sqrt(is->S.u.f / (n - 1.0));
282 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
284 char *io, *agg, *min, *max;
285 char *ioalt, *aggalt, *minalt, *maxalt;
286 const char *str[] = { " READ", " WRITE" , " TRIM"};
289 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
291 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
292 const int i2p = is_power_of_2(rs->kb_base);
297 io = num2str(rs->iobytes[i], rs->sig_figs, 1, i2p, N2S_BYTE);
298 ioalt = num2str(rs->iobytes[i], rs->sig_figs, 1, !i2p, N2S_BYTE);
299 agg = num2str(rs->agg[i], rs->sig_figs, 1, i2p, rs->unit_base);
300 aggalt = num2str(rs->agg[i], rs->sig_figs, 1, !i2p, rs->unit_base);
301 min = num2str(rs->min_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
302 minalt = num2str(rs->min_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
303 max = num2str(rs->max_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
304 maxalt = num2str(rs->max_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
305 log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
306 rs->unified_rw_rep ? " MIXED" : str[i],
307 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
308 (unsigned long long) rs->min_run[i],
309 (unsigned long long) rs->max_run[i]);
322 void stat_calc_dist(uint64_t *map, unsigned long total, double *io_u_dist)
327 * Do depth distribution calculations
329 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
331 io_u_dist[i] = (double) map[i] / (double) total;
332 io_u_dist[i] *= 100.0;
333 if (io_u_dist[i] < 0.1 && map[i])
340 static void stat_calc_lat(struct thread_stat *ts, double *dst,
341 uint64_t *src, int nr)
343 unsigned long total = ddir_rw_sum(ts->total_io_u);
347 * Do latency distribution calculations
349 for (i = 0; i < nr; i++) {
351 dst[i] = (double) src[i] / (double) total;
353 if (dst[i] < 0.01 && src[i])
361 * To keep the terse format unaltered, add all of the ns latency
362 * buckets to the first us latency bucket
364 static void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
366 unsigned long ntotal = 0, total = ddir_rw_sum(ts->total_io_u);
369 stat_calc_lat(ts, io_u_lat_u, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
371 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
372 ntotal += ts->io_u_lat_n[i];
374 io_u_lat_u[0] += 100.0 * (double) ntotal / (double) total;
377 void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat)
379 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_n, FIO_IO_U_LAT_N_NR);
382 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
384 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
387 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
389 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
392 static void display_lat(const char *name, unsigned long long min,
393 unsigned long long max, double mean, double dev,
394 struct buf_output *out)
396 const char *base = "(nsec)";
399 if (nsec_to_msec(&min, &max, &mean, &dev))
401 else if (nsec_to_usec(&min, &max, &mean, &dev))
404 minp = num2str(min, 6, 1, 0, N2S_NONE);
405 maxp = num2str(max, 6, 1, 0, N2S_NONE);
407 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
408 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
414 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
415 int ddir, struct buf_output *out)
418 unsigned long long min, max, bw, iops;
420 char *io_p, *bw_p, *bw_p_alt, *iops_p, *post_st = NULL;
423 if (ddir_sync(ddir)) {
424 if (calc_lat(&ts->sync_stat, &min, &max, &mean, &dev)) {
425 log_buf(out, " %s:\n", "fsync/fdatasync/sync_file_range");
426 display_lat(io_ddir_name(ddir), min, max, mean, dev, out);
427 show_clat_percentiles(ts->io_u_sync_plat,
428 ts->sync_stat.samples,
430 ts->percentile_precision,
431 io_ddir_name(ddir), out);
436 assert(ddir_rw(ddir));
438 if (!ts->runtime[ddir])
441 i2p = is_power_of_2(rs->kb_base);
442 runt = ts->runtime[ddir];
444 bw = (1000 * ts->io_bytes[ddir]) / runt;
445 io_p = num2str(ts->io_bytes[ddir], ts->sig_figs, 1, i2p, N2S_BYTE);
446 bw_p = num2str(bw, ts->sig_figs, 1, i2p, ts->unit_base);
447 bw_p_alt = num2str(bw, ts->sig_figs, 1, !i2p, ts->unit_base);
449 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
450 iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
451 if (ddir == DDIR_WRITE)
452 post_st = zbd_write_status(ts);
453 else if (ddir == DDIR_READ && ts->cachehit && ts->cachemiss) {
457 total = ts->cachehit + ts->cachemiss;
458 hit = (double) ts->cachehit / (double) total;
460 if (asprintf(&post_st, "; Cachehit=%0.2f%%", hit) < 0)
464 log_buf(out, " %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
465 rs->unified_rw_rep ? "mixed" : io_ddir_name(ddir),
466 iops_p, bw_p, bw_p_alt, io_p,
467 (unsigned long long) ts->runtime[ddir],
476 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
477 display_lat("slat", min, max, mean, dev, out);
478 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
479 display_lat("clat", min, max, mean, dev, out);
480 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
481 display_lat(" lat", min, max, mean, dev, out);
483 if (ts->clat_percentiles || ts->lat_percentiles) {
484 const char *name = ts->clat_percentiles ? "clat" : " lat";
487 if (ts->clat_percentiles)
488 samples = ts->clat_stat[ddir].samples;
490 samples = ts->lat_stat[ddir].samples;
492 show_clat_percentiles(ts->io_u_plat[ddir],
495 ts->percentile_precision, name, out);
497 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
498 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
501 if ((rs->unit_base == 1) && i2p)
503 else if (rs->unit_base == 1)
511 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
512 if (p_of_agg > 100.0)
516 if (rs->unit_base == 1) {
523 if (mean > fkb_base * fkb_base) {
528 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
531 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
532 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
533 bw_str, min, max, p_of_agg, mean, dev,
534 (&ts->bw_stat[ddir])->samples);
536 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
537 log_buf(out, " iops : min=%5llu, max=%5llu, "
538 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
539 min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
543 static bool show_lat(double *io_u_lat, int nr, const char **ranges,
544 const char *msg, struct buf_output *out)
546 bool new_line = true, shown = false;
549 for (i = 0; i < nr; i++) {
550 if (io_u_lat[i] <= 0.0)
556 log_buf(out, " lat (%s) : ", msg);
562 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
574 static void show_lat_n(double *io_u_lat_n, struct buf_output *out)
576 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
577 "250=", "500=", "750=", "1000=", };
579 show_lat(io_u_lat_n, FIO_IO_U_LAT_N_NR, ranges, "nsec", out);
582 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
584 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
585 "250=", "500=", "750=", "1000=", };
587 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
590 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
592 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
593 "250=", "500=", "750=", "1000=", "2000=",
596 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
599 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
601 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
602 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
603 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
605 stat_calc_lat_n(ts, io_u_lat_n);
606 stat_calc_lat_u(ts, io_u_lat_u);
607 stat_calc_lat_m(ts, io_u_lat_m);
609 show_lat_n(io_u_lat_n, out);
610 show_lat_u(io_u_lat_u, out);
611 show_lat_m(io_u_lat_m, out);
614 static int block_state_category(int block_state)
616 switch (block_state) {
617 case BLOCK_STATE_UNINIT:
619 case BLOCK_STATE_TRIMMED:
620 case BLOCK_STATE_WRITTEN:
622 case BLOCK_STATE_WRITE_FAILURE:
623 case BLOCK_STATE_TRIM_FAILURE:
626 /* Silence compile warning on some BSDs and have a return */
632 static int compare_block_infos(const void *bs1, const void *bs2)
634 uint64_t block1 = *(uint64_t *)bs1;
635 uint64_t block2 = *(uint64_t *)bs2;
636 int state1 = BLOCK_INFO_STATE(block1);
637 int state2 = BLOCK_INFO_STATE(block2);
638 int bscat1 = block_state_category(state1);
639 int bscat2 = block_state_category(state2);
640 int cycles1 = BLOCK_INFO_TRIMS(block1);
641 int cycles2 = BLOCK_INFO_TRIMS(block2);
648 if (cycles1 < cycles2)
650 if (cycles1 > cycles2)
658 assert(block1 == block2);
662 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
663 fio_fp64_t *plist, unsigned int **percentiles,
669 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
671 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
678 * Sort the percentile list. Note that it may already be sorted if
679 * we are using the default values, but since it's a short list this
680 * isn't a worry. Also note that this does not work for NaN values.
683 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
685 /* Start only after the uninit entries end */
687 nr_uninit < nr_block_infos
688 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
692 if (nr_uninit == nr_block_infos)
695 *percentiles = calloc(len, sizeof(**percentiles));
697 for (i = 0; i < len; i++) {
698 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
700 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
703 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
704 for (i = 0; i < nr_block_infos; i++)
705 types[BLOCK_INFO_STATE(block_infos[i])]++;
710 static const char *block_state_names[] = {
711 [BLOCK_STATE_UNINIT] = "unwritten",
712 [BLOCK_STATE_TRIMMED] = "trimmed",
713 [BLOCK_STATE_WRITTEN] = "written",
714 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
715 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
718 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
719 fio_fp64_t *plist, struct buf_output *out)
722 unsigned int *percentiles = NULL;
723 unsigned int block_state_counts[BLOCK_STATE_COUNT];
725 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
726 &percentiles, block_state_counts);
728 log_buf(out, " block lifetime percentiles :\n |");
730 for (i = 0; i < len; i++) {
731 uint32_t block_info = percentiles[i];
732 #define LINE_LENGTH 75
733 char str[LINE_LENGTH];
734 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
735 plist[i].u.f, block_info,
736 i == len - 1 ? '\n' : ',');
737 assert(strln < LINE_LENGTH);
738 if (pos + strln > LINE_LENGTH) {
740 log_buf(out, "\n |");
742 log_buf(out, "%s", str);
749 log_buf(out, " states :");
750 for (i = 0; i < BLOCK_STATE_COUNT; i++)
751 log_buf(out, " %s=%u%c",
752 block_state_names[i], block_state_counts[i],
753 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
756 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
758 char *p1, *p1alt, *p2;
759 unsigned long long bw_mean, iops_mean;
760 const int i2p = is_power_of_2(ts->kb_base);
765 bw_mean = steadystate_bw_mean(ts);
766 iops_mean = steadystate_iops_mean(ts);
768 p1 = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, i2p, ts->unit_base);
769 p1alt = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, !i2p, ts->unit_base);
770 p2 = num2str(iops_mean, ts->sig_figs, 1, 0, N2S_NONE);
772 log_buf(out, " steadystate : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
773 ts->ss_state & FIO_SS_ATTAINED ? "yes" : "no",
775 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
776 ts->ss_state & FIO_SS_SLOPE ? " slope": " mean dev",
777 ts->ss_criterion.u.f,
778 ts->ss_state & FIO_SS_PCT ? "%" : "");
785 static void show_thread_status_normal(struct thread_stat *ts,
786 struct group_run_stats *rs,
787 struct buf_output *out)
789 double usr_cpu, sys_cpu;
790 unsigned long runtime;
791 double io_u_dist[FIO_IO_U_MAP_NR];
795 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
798 memset(time_buf, 0, sizeof(time_buf));
801 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
804 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
805 ts->name, ts->groupid, ts->members,
806 ts->error, (int) ts->pid, time_buf);
808 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
809 ts->name, ts->groupid, ts->members,
810 ts->error, ts->verror, (int) ts->pid,
814 if (strlen(ts->description))
815 log_buf(out, " Description : [%s]\n", ts->description);
817 if (ts->io_bytes[DDIR_READ])
818 show_ddir_status(rs, ts, DDIR_READ, out);
819 if (ts->io_bytes[DDIR_WRITE])
820 show_ddir_status(rs, ts, DDIR_WRITE, out);
821 if (ts->io_bytes[DDIR_TRIM])
822 show_ddir_status(rs, ts, DDIR_TRIM, out);
824 show_latencies(ts, out);
826 if (ts->sync_stat.samples)
827 show_ddir_status(rs, ts, DDIR_SYNC, out);
829 runtime = ts->total_run_time;
831 double runt = (double) runtime;
833 usr_cpu = (double) ts->usr_time * 100 / runt;
834 sys_cpu = (double) ts->sys_time * 100 / runt;
840 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
841 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
842 (unsigned long long) ts->ctx,
843 (unsigned long long) ts->majf,
844 (unsigned long long) ts->minf);
846 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
847 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
848 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
849 io_u_dist[1], io_u_dist[2],
850 io_u_dist[3], io_u_dist[4],
851 io_u_dist[5], io_u_dist[6]);
853 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
854 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
855 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
856 io_u_dist[1], io_u_dist[2],
857 io_u_dist[3], io_u_dist[4],
858 io_u_dist[5], io_u_dist[6]);
859 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
860 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
861 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
862 io_u_dist[1], io_u_dist[2],
863 io_u_dist[3], io_u_dist[4],
864 io_u_dist[5], io_u_dist[6]);
865 log_buf(out, " issued rwts: total=%llu,%llu,%llu,%llu"
866 " short=%llu,%llu,%llu,0"
867 " dropped=%llu,%llu,%llu,0\n",
868 (unsigned long long) ts->total_io_u[0],
869 (unsigned long long) ts->total_io_u[1],
870 (unsigned long long) ts->total_io_u[2],
871 (unsigned long long) ts->total_io_u[3],
872 (unsigned long long) ts->short_io_u[0],
873 (unsigned long long) ts->short_io_u[1],
874 (unsigned long long) ts->short_io_u[2],
875 (unsigned long long) ts->drop_io_u[0],
876 (unsigned long long) ts->drop_io_u[1],
877 (unsigned long long) ts->drop_io_u[2]);
878 if (ts->continue_on_error) {
879 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
880 (unsigned long long)ts->total_err_count,
882 strerror(ts->first_error));
884 if (ts->latency_depth) {
885 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
886 (unsigned long long)ts->latency_target,
887 (unsigned long long)ts->latency_window,
888 ts->latency_percentile.u.f,
892 if (ts->nr_block_infos)
893 show_block_infos(ts->nr_block_infos, ts->block_infos,
894 ts->percentile_list, out);
897 show_ss_normal(ts, out);
900 static void show_ddir_status_terse(struct thread_stat *ts,
901 struct group_run_stats *rs, int ddir,
902 int ver, struct buf_output *out)
904 unsigned long long min, max, minv, maxv, bw, iops;
905 unsigned long long *ovals = NULL;
910 assert(ddir_rw(ddir));
913 if (ts->runtime[ddir]) {
914 uint64_t runt = ts->runtime[ddir];
916 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
917 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
920 log_buf(out, ";%llu;%llu;%llu;%llu",
921 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
922 (unsigned long long) ts->runtime[ddir]);
924 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
925 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
927 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
929 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
930 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
932 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
934 if (ts->clat_percentiles || ts->lat_percentiles) {
935 len = calc_clat_percentiles(ts->io_u_plat[ddir],
936 ts->clat_stat[ddir].samples,
937 ts->percentile_list, &ovals, &maxv,
942 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
944 log_buf(out, ";0%%=0");
947 log_buf(out, ";%f%%=%llu", ts->percentile_list[i].u.f, ovals[i]/1000);
950 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
951 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
953 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
958 bw_stat = calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev);
960 double p_of_agg = 100.0;
963 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
964 if (p_of_agg > 100.0)
968 log_buf(out, ";%llu;%llu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
970 log_buf(out, ";%llu;%llu;%f%%;%f;%f", 0ULL, 0ULL, 0.0, 0.0, 0.0);
974 log_buf(out, ";%" PRIu64, (&ts->bw_stat[ddir])->samples);
976 log_buf(out, ";%lu", 0UL);
978 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev))
979 log_buf(out, ";%llu;%llu;%f;%f;%" PRIu64, min, max,
980 mean, dev, (&ts->iops_stat[ddir])->samples);
982 log_buf(out, ";%llu;%llu;%f;%f;%lu", 0ULL, 0ULL, 0.0, 0.0, 0UL);
986 static void add_ddir_status_json(struct thread_stat *ts,
987 struct group_run_stats *rs, int ddir, struct json_object *parent)
989 unsigned long long min, max, minv, maxv;
990 unsigned long long bw_bytes, bw;
991 unsigned long long *ovals = NULL;
992 double mean, dev, iops;
995 struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object = NULL;
997 double p_of_agg = 100.0;
999 assert(ddir_rw(ddir) || ddir_sync(ddir));
1001 if (ts->unified_rw_rep && ddir != DDIR_READ)
1004 dir_object = json_create_object();
1005 json_object_add_value_object(parent,
1006 ts->unified_rw_rep ? "mixed" : io_ddir_name(ddir), dir_object);
1008 if (ddir_rw(ddir)) {
1012 if (ts->runtime[ddir]) {
1013 uint64_t runt = ts->runtime[ddir];
1015 bw_bytes = ((1000 * ts->io_bytes[ddir]) / runt); /* Bytes/s */
1016 bw = bw_bytes / 1024; /* KiB/s */
1017 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
1020 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
1021 json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
1022 json_object_add_value_int(dir_object, "bw_bytes", bw_bytes);
1023 json_object_add_value_int(dir_object, "bw", bw);
1024 json_object_add_value_float(dir_object, "iops", iops);
1025 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
1026 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
1027 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
1028 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
1030 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
1034 tmp_object = json_create_object();
1035 json_object_add_value_object(dir_object, "slat_ns", tmp_object);
1036 json_object_add_value_int(tmp_object, "min", min);
1037 json_object_add_value_int(tmp_object, "max", max);
1038 json_object_add_value_float(tmp_object, "mean", mean);
1039 json_object_add_value_float(tmp_object, "stddev", dev);
1041 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
1045 tmp_object = json_create_object();
1046 json_object_add_value_object(dir_object, "clat_ns", tmp_object);
1047 json_object_add_value_int(tmp_object, "min", min);
1048 json_object_add_value_int(tmp_object, "max", max);
1049 json_object_add_value_float(tmp_object, "mean", mean);
1050 json_object_add_value_float(tmp_object, "stddev", dev);
1052 if (!calc_lat(&ts->sync_stat, &min, &max, &mean, &dev)) {
1057 tmp_object = json_create_object();
1058 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1059 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[DDIR_SYNC]);
1060 json_object_add_value_int(tmp_object, "min", min);
1061 json_object_add_value_int(tmp_object, "max", max);
1062 json_object_add_value_float(tmp_object, "mean", mean);
1063 json_object_add_value_float(tmp_object, "stddev", dev);
1066 if (ts->clat_percentiles || ts->lat_percentiles) {
1067 if (ddir_rw(ddir)) {
1070 if (ts->clat_percentiles)
1071 samples = ts->clat_stat[ddir].samples;
1073 samples = ts->lat_stat[ddir].samples;
1075 len = calc_clat_percentiles(ts->io_u_plat[ddir],
1076 samples, ts->percentile_list, &ovals,
1079 len = calc_clat_percentiles(ts->io_u_sync_plat,
1080 ts->sync_stat.samples,
1081 ts->percentile_list, &ovals, &maxv,
1085 if (len > FIO_IO_U_LIST_MAX_LEN)
1086 len = FIO_IO_U_LIST_MAX_LEN;
1090 percentile_object = json_create_object();
1091 if (ts->clat_percentiles)
1092 json_object_add_value_object(tmp_object, "percentile", percentile_object);
1093 for (i = 0; i < len; i++) {
1094 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
1095 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
1098 if (output_format & FIO_OUTPUT_JSON_PLUS) {
1099 clat_bins_object = json_create_object();
1100 if (ts->clat_percentiles)
1101 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1103 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
1104 if (ddir_rw(ddir)) {
1105 if (ts->io_u_plat[ddir][i]) {
1106 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1107 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
1110 if (ts->io_u_sync_plat[i]) {
1111 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1112 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_sync_plat[i]);
1121 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
1125 tmp_object = json_create_object();
1126 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1127 json_object_add_value_int(tmp_object, "min", min);
1128 json_object_add_value_int(tmp_object, "max", max);
1129 json_object_add_value_float(tmp_object, "mean", mean);
1130 json_object_add_value_float(tmp_object, "stddev", dev);
1131 if (ts->lat_percentiles)
1132 json_object_add_value_object(tmp_object, "percentile", percentile_object);
1133 if (output_format & FIO_OUTPUT_JSON_PLUS && ts->lat_percentiles)
1134 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1139 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
1140 if (rs->agg[ddir]) {
1141 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
1142 if (p_of_agg > 100.0)
1147 p_of_agg = mean = dev = 0.0;
1149 json_object_add_value_int(dir_object, "bw_min", min);
1150 json_object_add_value_int(dir_object, "bw_max", max);
1151 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1152 json_object_add_value_float(dir_object, "bw_mean", mean);
1153 json_object_add_value_float(dir_object, "bw_dev", dev);
1154 json_object_add_value_int(dir_object, "bw_samples",
1155 (&ts->bw_stat[ddir])->samples);
1157 if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
1161 json_object_add_value_int(dir_object, "iops_min", min);
1162 json_object_add_value_int(dir_object, "iops_max", max);
1163 json_object_add_value_float(dir_object, "iops_mean", mean);
1164 json_object_add_value_float(dir_object, "iops_stddev", dev);
1165 json_object_add_value_int(dir_object, "iops_samples",
1166 (&ts->iops_stat[ddir])->samples);
1168 if (ts->cachehit + ts->cachemiss) {
1172 total = ts->cachehit + ts->cachemiss;
1173 hit = (double) ts->cachehit / (double) total;
1175 json_object_add_value_float(dir_object, "cachehit", hit);
1179 static void show_thread_status_terse_all(struct thread_stat *ts,
1180 struct group_run_stats *rs, int ver,
1181 struct buf_output *out)
1183 double io_u_dist[FIO_IO_U_MAP_NR];
1184 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1185 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1186 double usr_cpu, sys_cpu;
1191 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1193 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1194 ts->name, ts->groupid, ts->error);
1196 /* Log Read Status */
1197 show_ddir_status_terse(ts, rs, DDIR_READ, ver, out);
1198 /* Log Write Status */
1199 show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
1200 /* Log Trim Status */
1201 if (ver == 2 || ver == 4 || ver == 5)
1202 show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
1205 if (ts->total_run_time) {
1206 double runt = (double) ts->total_run_time;
1208 usr_cpu = (double) ts->usr_time * 100 / runt;
1209 sys_cpu = (double) ts->sys_time * 100 / runt;
1215 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1216 (unsigned long long) ts->ctx,
1217 (unsigned long long) ts->majf,
1218 (unsigned long long) ts->minf);
1220 /* Calc % distribution of IO depths, usecond, msecond latency */
1221 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1222 stat_calc_lat_nu(ts, io_u_lat_u);
1223 stat_calc_lat_m(ts, io_u_lat_m);
1225 /* Only show fixed 7 I/O depth levels*/
1226 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1227 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1228 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1230 /* Microsecond latency */
1231 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1232 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1233 /* Millisecond latency */
1234 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1235 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1237 /* disk util stats, if any */
1238 if (ver >= 3 && is_running_backend())
1239 show_disk_util(1, NULL, out);
1241 /* Additional output if continue_on_error set - default off*/
1242 if (ts->continue_on_error)
1243 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1247 /* Additional output if description is set */
1248 if (strlen(ts->description))
1249 log_buf(out, ";%s", ts->description);
1254 static void json_add_job_opts(struct json_object *root, const char *name,
1255 struct flist_head *opt_list)
1257 struct json_object *dir_object;
1258 struct flist_head *entry;
1259 struct print_option *p;
1261 if (flist_empty(opt_list))
1264 dir_object = json_create_object();
1265 json_object_add_value_object(root, name, dir_object);
1267 flist_for_each(entry, opt_list) {
1268 const char *pos = "";
1270 p = flist_entry(entry, struct print_option, list);
1273 json_object_add_value_string(dir_object, p->name, pos);
1277 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1278 struct group_run_stats *rs,
1279 struct flist_head *opt_list)
1281 struct json_object *root, *tmp;
1282 struct jobs_eta *je;
1283 double io_u_dist[FIO_IO_U_MAP_NR];
1284 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
1285 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1286 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1287 double usr_cpu, sys_cpu;
1291 root = json_create_object();
1292 json_object_add_value_string(root, "jobname", ts->name);
1293 json_object_add_value_int(root, "groupid", ts->groupid);
1294 json_object_add_value_int(root, "error", ts->error);
1297 je = get_jobs_eta(true, &size);
1299 json_object_add_value_int(root, "eta", je->eta_sec);
1300 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1304 json_add_job_opts(root, "job options", opt_list);
1306 add_ddir_status_json(ts, rs, DDIR_READ, root);
1307 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1308 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1309 add_ddir_status_json(ts, rs, DDIR_SYNC, root);
1312 if (ts->total_run_time) {
1313 double runt = (double) ts->total_run_time;
1315 usr_cpu = (double) ts->usr_time * 100 / runt;
1316 sys_cpu = (double) ts->sys_time * 100 / runt;
1321 json_object_add_value_int(root, "job_runtime", ts->total_run_time);
1322 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1323 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1324 json_object_add_value_int(root, "ctx", ts->ctx);
1325 json_object_add_value_int(root, "majf", ts->majf);
1326 json_object_add_value_int(root, "minf", ts->minf);
1328 /* Calc % distribution of IO depths */
1329 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1330 tmp = json_create_object();
1331 json_object_add_value_object(root, "iodepth_level", tmp);
1332 /* Only show fixed 7 I/O depth levels*/
1333 for (i = 0; i < 7; i++) {
1336 snprintf(name, 20, "%d", 1 << i);
1338 snprintf(name, 20, ">=%d", 1 << i);
1339 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1342 /* Calc % distribution of submit IO depths */
1343 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
1344 tmp = json_create_object();
1345 json_object_add_value_object(root, "iodepth_submit", tmp);
1346 /* Only show fixed 7 I/O depth levels*/
1347 for (i = 0; i < 7; i++) {
1350 snprintf(name, 20, "0");
1352 snprintf(name, 20, "%d", 1 << (i+1));
1354 snprintf(name, 20, ">=%d", 1 << i);
1355 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1358 /* Calc % distribution of completion IO depths */
1359 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
1360 tmp = json_create_object();
1361 json_object_add_value_object(root, "iodepth_complete", tmp);
1362 /* Only show fixed 7 I/O depth levels*/
1363 for (i = 0; i < 7; i++) {
1366 snprintf(name, 20, "0");
1368 snprintf(name, 20, "%d", 1 << (i+1));
1370 snprintf(name, 20, ">=%d", 1 << i);
1371 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1374 /* Calc % distribution of nsecond, usecond, msecond latency */
1375 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1376 stat_calc_lat_n(ts, io_u_lat_n);
1377 stat_calc_lat_u(ts, io_u_lat_u);
1378 stat_calc_lat_m(ts, io_u_lat_m);
1380 /* Nanosecond latency */
1381 tmp = json_create_object();
1382 json_object_add_value_object(root, "latency_ns", tmp);
1383 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++) {
1384 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1385 "250", "500", "750", "1000", };
1386 json_object_add_value_float(tmp, ranges[i], io_u_lat_n[i]);
1388 /* Microsecond latency */
1389 tmp = json_create_object();
1390 json_object_add_value_object(root, "latency_us", tmp);
1391 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1392 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1393 "250", "500", "750", "1000", };
1394 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1396 /* Millisecond latency */
1397 tmp = json_create_object();
1398 json_object_add_value_object(root, "latency_ms", tmp);
1399 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1400 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1401 "250", "500", "750", "1000", "2000",
1403 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1406 /* Additional output if continue_on_error set - default off*/
1407 if (ts->continue_on_error) {
1408 json_object_add_value_int(root, "total_err", ts->total_err_count);
1409 json_object_add_value_int(root, "first_error", ts->first_error);
1412 if (ts->latency_depth) {
1413 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1414 json_object_add_value_int(root, "latency_target", ts->latency_target);
1415 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1416 json_object_add_value_int(root, "latency_window", ts->latency_window);
1419 /* Additional output if description is set */
1420 if (strlen(ts->description))
1421 json_object_add_value_string(root, "desc", ts->description);
1423 if (ts->nr_block_infos) {
1424 /* Block error histogram and types */
1426 unsigned int *percentiles = NULL;
1427 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1429 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1430 ts->percentile_list,
1431 &percentiles, block_state_counts);
1434 struct json_object *block, *percentile_object, *states;
1436 block = json_create_object();
1437 json_object_add_value_object(root, "block", block);
1439 percentile_object = json_create_object();
1440 json_object_add_value_object(block, "percentiles",
1442 for (i = 0; i < len; i++) {
1444 snprintf(buf, sizeof(buf), "%f",
1445 ts->percentile_list[i].u.f);
1446 json_object_add_value_int(percentile_object,
1451 states = json_create_object();
1452 json_object_add_value_object(block, "states", states);
1453 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1454 json_object_add_value_int(states,
1455 block_state_names[state],
1456 block_state_counts[state]);
1463 struct json_object *data;
1464 struct json_array *iops, *bw;
1468 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1469 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
1470 ts->ss_state & FIO_SS_SLOPE ? "_slope" : "",
1471 (float) ts->ss_limit.u.f,
1472 ts->ss_state & FIO_SS_PCT ? "%" : "");
1474 tmp = json_create_object();
1475 json_object_add_value_object(root, "steadystate", tmp);
1476 json_object_add_value_string(tmp, "ss", ss_buf);
1477 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1478 json_object_add_value_int(tmp, "attained", (ts->ss_state & FIO_SS_ATTAINED) > 0);
1480 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1481 ts->ss_state & FIO_SS_PCT ? "%" : "");
1482 json_object_add_value_string(tmp, "criterion", ss_buf);
1483 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1484 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1486 data = json_create_object();
1487 json_object_add_value_object(tmp, "data", data);
1488 bw = json_create_array();
1489 iops = json_create_array();
1492 ** if ss was attained or the buffer is not full,
1493 ** ss->head points to the first element in the list.
1494 ** otherwise it actually points to the second element
1497 if ((ts->ss_state & FIO_SS_ATTAINED) || !(ts->ss_state & FIO_SS_BUFFER_FULL))
1500 j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1501 for (l = 0; l < ts->ss_dur; l++) {
1502 k = (j + l) % ts->ss_dur;
1503 json_array_add_value_int(bw, ts->ss_bw_data[k]);
1504 json_array_add_value_int(iops, ts->ss_iops_data[k]);
1506 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1507 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1508 json_object_add_value_array(data, "iops", iops);
1509 json_object_add_value_array(data, "bw", bw);
1515 static void show_thread_status_terse(struct thread_stat *ts,
1516 struct group_run_stats *rs,
1517 struct buf_output *out)
1519 if (terse_version >= 2 && terse_version <= 5)
1520 show_thread_status_terse_all(ts, rs, terse_version, out);
1522 log_err("fio: bad terse version!? %d\n", terse_version);
1525 struct json_object *show_thread_status(struct thread_stat *ts,
1526 struct group_run_stats *rs,
1527 struct flist_head *opt_list,
1528 struct buf_output *out)
1530 struct json_object *ret = NULL;
1532 if (output_format & FIO_OUTPUT_TERSE)
1533 show_thread_status_terse(ts, rs, out);
1534 if (output_format & FIO_OUTPUT_JSON)
1535 ret = show_thread_status_json(ts, rs, opt_list);
1536 if (output_format & FIO_OUTPUT_NORMAL)
1537 show_thread_status_normal(ts, rs, out);
1542 static void __sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1546 dst->min_val = min(dst->min_val, src->min_val);
1547 dst->max_val = max(dst->max_val, src->max_val);
1550 * Compute new mean and S after the merge
1551 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1552 * #Parallel_algorithm>
1555 mean = src->mean.u.f;
1558 double delta = src->mean.u.f - dst->mean.u.f;
1560 mean = ((src->mean.u.f * src->samples) +
1561 (dst->mean.u.f * dst->samples)) /
1562 (dst->samples + src->samples);
1564 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1565 (dst->samples * src->samples) /
1566 (dst->samples + src->samples);
1569 dst->samples += src->samples;
1570 dst->mean.u.f = mean;
1576 * We sum two kinds of stats - one that is time based, in which case we
1577 * apply the proper summing technique, and then one that is iops/bw
1578 * numbers. For group_reporting, we should just add those up, not make
1579 * them the mean of everything.
1581 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first,
1584 if (src->samples == 0)
1588 __sum_stat(dst, src, first);
1593 dst->min_val = src->min_val;
1594 dst->max_val = src->max_val;
1595 dst->samples = src->samples;
1596 dst->mean.u.f = src->mean.u.f;
1597 dst->S.u.f = src->S.u.f;
1599 dst->min_val += src->min_val;
1600 dst->max_val += src->max_val;
1601 dst->samples += src->samples;
1602 dst->mean.u.f += src->mean.u.f;
1603 dst->S.u.f += src->S.u.f;
1607 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1611 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1612 if (dst->max_run[i] < src->max_run[i])
1613 dst->max_run[i] = src->max_run[i];
1614 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1615 dst->min_run[i] = src->min_run[i];
1616 if (dst->max_bw[i] < src->max_bw[i])
1617 dst->max_bw[i] = src->max_bw[i];
1618 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1619 dst->min_bw[i] = src->min_bw[i];
1621 dst->iobytes[i] += src->iobytes[i];
1622 dst->agg[i] += src->agg[i];
1626 dst->kb_base = src->kb_base;
1627 if (!dst->unit_base)
1628 dst->unit_base = src->unit_base;
1630 dst->sig_figs = src->sig_figs;
1633 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1638 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1639 if (!dst->unified_rw_rep) {
1640 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first, false);
1641 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first, false);
1642 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first, false);
1643 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first, true);
1644 sum_stat(&dst->iops_stat[l], &src->iops_stat[l], first, true);
1646 dst->io_bytes[l] += src->io_bytes[l];
1648 if (dst->runtime[l] < src->runtime[l])
1649 dst->runtime[l] = src->runtime[l];
1651 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first, false);
1652 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first, false);
1653 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first, false);
1654 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first, true);
1655 sum_stat(&dst->iops_stat[0], &src->iops_stat[l], first, true);
1657 dst->io_bytes[0] += src->io_bytes[l];
1659 if (dst->runtime[0] < src->runtime[l])
1660 dst->runtime[0] = src->runtime[l];
1663 * We're summing to the same destination, so override
1664 * 'first' after the first iteration of the loop
1670 sum_stat(&dst->sync_stat, &src->sync_stat, first, false);
1671 dst->usr_time += src->usr_time;
1672 dst->sys_time += src->sys_time;
1673 dst->ctx += src->ctx;
1674 dst->majf += src->majf;
1675 dst->minf += src->minf;
1677 for (k = 0; k < FIO_IO_U_MAP_NR; k++) {
1678 dst->io_u_map[k] += src->io_u_map[k];
1679 dst->io_u_submit[k] += src->io_u_submit[k];
1680 dst->io_u_complete[k] += src->io_u_complete[k];
1682 for (k = 0; k < FIO_IO_U_LAT_N_NR; k++) {
1683 dst->io_u_lat_n[k] += src->io_u_lat_n[k];
1684 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1685 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1687 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1688 dst->io_u_sync_plat[k] += src->io_u_sync_plat[k];
1690 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1691 if (!dst->unified_rw_rep) {
1692 dst->total_io_u[k] += src->total_io_u[k];
1693 dst->short_io_u[k] += src->short_io_u[k];
1694 dst->drop_io_u[k] += src->drop_io_u[k];
1696 dst->total_io_u[0] += src->total_io_u[k];
1697 dst->short_io_u[0] += src->short_io_u[k];
1698 dst->drop_io_u[0] += src->drop_io_u[k];
1702 dst->total_io_u[DDIR_SYNC] += src->total_io_u[DDIR_SYNC];
1704 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1707 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1708 if (!dst->unified_rw_rep)
1709 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1711 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1715 dst->total_run_time += src->total_run_time;
1716 dst->total_submit += src->total_submit;
1717 dst->total_complete += src->total_complete;
1718 dst->nr_zone_resets += src->nr_zone_resets;
1719 dst->cachehit += src->cachehit;
1720 dst->cachemiss += src->cachemiss;
1723 void init_group_run_stat(struct group_run_stats *gs)
1726 memset(gs, 0, sizeof(*gs));
1728 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1729 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1732 void init_thread_stat(struct thread_stat *ts)
1736 memset(ts, 0, sizeof(*ts));
1738 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1739 ts->lat_stat[j].min_val = -1UL;
1740 ts->clat_stat[j].min_val = -1UL;
1741 ts->slat_stat[j].min_val = -1UL;
1742 ts->bw_stat[j].min_val = -1UL;
1743 ts->iops_stat[j].min_val = -1UL;
1745 ts->sync_stat.min_val = -1UL;
1749 void __show_run_stats(void)
1751 struct group_run_stats *runstats, *rs;
1752 struct thread_data *td;
1753 struct thread_stat *threadstats, *ts;
1754 int i, j, k, nr_ts, last_ts, idx;
1755 bool kb_base_warned = false;
1756 bool unit_base_warned = false;
1757 struct json_object *root = NULL;
1758 struct json_array *array = NULL;
1759 struct buf_output output[FIO_OUTPUT_NR];
1760 struct flist_head **opt_lists;
1762 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1764 for (i = 0; i < groupid + 1; i++)
1765 init_group_run_stat(&runstats[i]);
1768 * find out how many threads stats we need. if group reporting isn't
1769 * enabled, it's one-per-td.
1773 for_each_td(td, i) {
1774 if (!td->o.group_reporting) {
1778 if (last_ts == td->groupid)
1783 last_ts = td->groupid;
1787 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1788 opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1790 for (i = 0; i < nr_ts; i++) {
1791 init_thread_stat(&threadstats[i]);
1792 opt_lists[i] = NULL;
1798 for_each_td(td, i) {
1801 if (idx && (!td->o.group_reporting ||
1802 (td->o.group_reporting && last_ts != td->groupid))) {
1807 last_ts = td->groupid;
1809 ts = &threadstats[j];
1811 ts->clat_percentiles = td->o.clat_percentiles;
1812 ts->lat_percentiles = td->o.lat_percentiles;
1813 ts->percentile_precision = td->o.percentile_precision;
1814 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1815 opt_lists[j] = &td->opt_list;
1820 if (ts->groupid == -1) {
1822 * These are per-group shared already
1824 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1825 if (td->o.description)
1826 strncpy(ts->description, td->o.description,
1827 FIO_JOBDESC_SIZE - 1);
1829 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1832 * If multiple entries in this group, this is
1835 ts->thread_number = td->thread_number;
1836 ts->groupid = td->groupid;
1839 * first pid in group, not very useful...
1843 ts->kb_base = td->o.kb_base;
1844 ts->unit_base = td->o.unit_base;
1845 ts->sig_figs = td->o.sig_figs;
1846 ts->unified_rw_rep = td->o.unified_rw_rep;
1847 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1848 log_info("fio: kb_base differs for jobs in group, using"
1849 " %u as the base\n", ts->kb_base);
1850 kb_base_warned = true;
1851 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1852 log_info("fio: unit_base differs for jobs in group, using"
1853 " %u as the base\n", ts->unit_base);
1854 unit_base_warned = true;
1857 ts->continue_on_error = td->o.continue_on_error;
1858 ts->total_err_count += td->total_err_count;
1859 ts->first_error = td->first_error;
1861 if (!td->error && td->o.continue_on_error &&
1863 ts->error = td->first_error;
1864 ts->verror[sizeof(ts->verror) - 1] = '\0';
1865 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1866 } else if (td->error) {
1867 ts->error = td->error;
1868 ts->verror[sizeof(ts->verror) - 1] = '\0';
1869 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1873 ts->latency_depth = td->latency_qd;
1874 ts->latency_target = td->o.latency_target;
1875 ts->latency_percentile = td->o.latency_percentile;
1876 ts->latency_window = td->o.latency_window;
1878 ts->nr_block_infos = td->ts.nr_block_infos;
1879 for (k = 0; k < ts->nr_block_infos; k++)
1880 ts->block_infos[k] = td->ts.block_infos[k];
1882 sum_thread_stats(ts, &td->ts, idx == 1);
1885 ts->ss_state = td->ss.state;
1886 ts->ss_dur = td->ss.dur;
1887 ts->ss_head = td->ss.head;
1888 ts->ss_bw_data = td->ss.bw_data;
1889 ts->ss_iops_data = td->ss.iops_data;
1890 ts->ss_limit.u.f = td->ss.limit;
1891 ts->ss_slope.u.f = td->ss.slope;
1892 ts->ss_deviation.u.f = td->ss.deviation;
1893 ts->ss_criterion.u.f = td->ss.criterion;
1896 ts->ss_dur = ts->ss_state = 0;
1899 for (i = 0; i < nr_ts; i++) {
1900 unsigned long long bw;
1902 ts = &threadstats[i];
1903 if (ts->groupid == -1)
1905 rs = &runstats[ts->groupid];
1906 rs->kb_base = ts->kb_base;
1907 rs->unit_base = ts->unit_base;
1908 rs->sig_figs = ts->sig_figs;
1909 rs->unified_rw_rep += ts->unified_rw_rep;
1911 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1912 if (!ts->runtime[j])
1914 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1915 rs->min_run[j] = ts->runtime[j];
1916 if (ts->runtime[j] > rs->max_run[j])
1917 rs->max_run[j] = ts->runtime[j];
1921 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
1922 if (bw < rs->min_bw[j])
1924 if (bw > rs->max_bw[j])
1927 rs->iobytes[j] += ts->io_bytes[j];
1931 for (i = 0; i < groupid + 1; i++) {
1936 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1937 if (rs->max_run[ddir])
1938 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
1943 for (i = 0; i < FIO_OUTPUT_NR; i++)
1944 buf_output_init(&output[i]);
1947 * don't overwrite last signal output
1949 if (output_format & FIO_OUTPUT_NORMAL)
1950 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1951 if (output_format & FIO_OUTPUT_JSON) {
1952 struct thread_data *global;
1955 unsigned long long ms_since_epoch;
1958 gettimeofday(&now, NULL);
1959 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1960 (unsigned long long)(now.tv_usec) / 1000;
1962 tv_sec = now.tv_sec;
1963 os_ctime_r(&tv_sec, time_buf, sizeof(time_buf));
1964 if (time_buf[strlen(time_buf) - 1] == '\n')
1965 time_buf[strlen(time_buf) - 1] = '\0';
1967 root = json_create_object();
1968 json_object_add_value_string(root, "fio version", fio_version_string);
1969 json_object_add_value_int(root, "timestamp", now.tv_sec);
1970 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1971 json_object_add_value_string(root, "time", time_buf);
1972 global = get_global_options();
1973 json_add_job_opts(root, "global options", &global->opt_list);
1974 array = json_create_array();
1975 json_object_add_value_array(root, "jobs", array);
1979 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1981 for (i = 0; i < nr_ts; i++) {
1982 ts = &threadstats[i];
1983 rs = &runstats[ts->groupid];
1986 fio_server_send_job_options(opt_lists[i], i);
1987 fio_server_send_ts(ts, rs);
1989 if (output_format & FIO_OUTPUT_TERSE)
1990 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1991 if (output_format & FIO_OUTPUT_JSON) {
1992 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1993 json_array_add_value_object(array, tmp);
1995 if (output_format & FIO_OUTPUT_NORMAL)
1996 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1999 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
2000 /* disk util stats, if any */
2001 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
2003 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
2005 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
2006 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
2007 json_free_object(root);
2010 for (i = 0; i < groupid + 1; i++) {
2015 fio_server_send_gs(rs);
2016 else if (output_format & FIO_OUTPUT_NORMAL)
2017 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
2021 fio_server_send_du();
2022 else if (output_format & FIO_OUTPUT_NORMAL) {
2023 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
2024 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
2027 for (i = 0; i < FIO_OUTPUT_NR; i++) {
2028 struct buf_output *out = &output[i];
2030 log_info_buf(out->buf, out->buflen);
2031 buf_output_free(out);
2034 fio_idle_prof_cleanup();
2042 void __show_running_run_stats(void)
2044 struct thread_data *td;
2045 unsigned long long *rt;
2049 fio_sem_down(stat_sem);
2051 rt = malloc(thread_number * sizeof(unsigned long long));
2052 fio_gettime(&ts, NULL);
2054 for_each_td(td, i) {
2055 td->update_rusage = 1;
2056 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
2057 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
2058 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
2059 td->ts.total_run_time = mtime_since(&td->epoch, &ts);
2061 rt[i] = mtime_since(&td->start, &ts);
2062 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2063 td->ts.runtime[DDIR_READ] += rt[i];
2064 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2065 td->ts.runtime[DDIR_WRITE] += rt[i];
2066 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2067 td->ts.runtime[DDIR_TRIM] += rt[i];
2070 for_each_td(td, i) {
2071 if (td->runstate >= TD_EXITED)
2073 if (td->rusage_sem) {
2074 td->update_rusage = 1;
2075 fio_sem_down(td->rusage_sem);
2077 td->update_rusage = 0;
2082 for_each_td(td, i) {
2083 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2084 td->ts.runtime[DDIR_READ] -= rt[i];
2085 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2086 td->ts.runtime[DDIR_WRITE] -= rt[i];
2087 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2088 td->ts.runtime[DDIR_TRIM] -= rt[i];
2092 fio_sem_up(stat_sem);
2095 static bool status_interval_init;
2096 static struct timespec status_time;
2097 static bool status_file_disabled;
2099 #define FIO_STATUS_FILE "fio-dump-status"
2101 static int check_status_file(void)
2104 const char *temp_dir;
2105 char fio_status_file_path[PATH_MAX];
2107 if (status_file_disabled)
2110 temp_dir = getenv("TMPDIR");
2111 if (temp_dir == NULL) {
2112 temp_dir = getenv("TEMP");
2113 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
2116 if (temp_dir == NULL)
2119 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
2121 if (stat(fio_status_file_path, &sb))
2124 if (unlink(fio_status_file_path) < 0) {
2125 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
2127 log_err("fio: disabling status file updates\n");
2128 status_file_disabled = true;
2134 void check_for_running_stats(void)
2136 if (status_interval) {
2137 if (!status_interval_init) {
2138 fio_gettime(&status_time, NULL);
2139 status_interval_init = true;
2140 } else if (mtime_since_now(&status_time) >= status_interval) {
2141 show_running_run_stats();
2142 fio_gettime(&status_time, NULL);
2146 if (check_status_file()) {
2147 show_running_run_stats();
2152 static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
2157 if (data > is->max_val)
2159 if (data < is->min_val)
2162 delta = val - is->mean.u.f;
2164 is->mean.u.f += delta / (is->samples + 1.0);
2165 is->S.u.f += delta * (val - is->mean.u.f);
2172 * Return a struct io_logs, which is added to the tail of the log
2175 static struct io_logs *get_new_log(struct io_log *iolog)
2177 size_t new_size, new_samples;
2178 struct io_logs *cur_log;
2181 * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
2184 if (!iolog->cur_log_max)
2185 new_samples = DEF_LOG_ENTRIES;
2187 new_samples = iolog->cur_log_max * 2;
2188 if (new_samples > MAX_LOG_ENTRIES)
2189 new_samples = MAX_LOG_ENTRIES;
2192 new_size = new_samples * log_entry_sz(iolog);
2194 cur_log = smalloc(sizeof(*cur_log));
2196 INIT_FLIST_HEAD(&cur_log->list);
2197 cur_log->log = malloc(new_size);
2199 cur_log->nr_samples = 0;
2200 cur_log->max_samples = new_samples;
2201 flist_add_tail(&cur_log->list, &iolog->io_logs);
2202 iolog->cur_log_max = new_samples;
2212 * Add and return a new log chunk, or return current log if big enough
2214 static struct io_logs *regrow_log(struct io_log *iolog)
2216 struct io_logs *cur_log;
2219 if (!iolog || iolog->disabled)
2222 cur_log = iolog_cur_log(iolog);
2224 cur_log = get_new_log(iolog);
2229 if (cur_log->nr_samples < cur_log->max_samples)
2233 * No room for a new sample. If we're compressing on the fly, flush
2234 * out the current chunk
2236 if (iolog->log_gz) {
2237 if (iolog_cur_flush(iolog, cur_log)) {
2238 log_err("fio: failed flushing iolog! Will stop logging.\n");
2244 * Get a new log array, and add to our list
2246 cur_log = get_new_log(iolog);
2248 log_err("fio: failed extending iolog! Will stop logging.\n");
2252 if (!iolog->pending || !iolog->pending->nr_samples)
2256 * Flush pending items to new log
2258 for (i = 0; i < iolog->pending->nr_samples; i++) {
2259 struct io_sample *src, *dst;
2261 src = get_sample(iolog, iolog->pending, i);
2262 dst = get_sample(iolog, cur_log, i);
2263 memcpy(dst, src, log_entry_sz(iolog));
2265 cur_log->nr_samples = iolog->pending->nr_samples;
2267 iolog->pending->nr_samples = 0;
2271 iolog->disabled = true;
2275 void regrow_logs(struct thread_data *td)
2277 regrow_log(td->slat_log);
2278 regrow_log(td->clat_log);
2279 regrow_log(td->clat_hist_log);
2280 regrow_log(td->lat_log);
2281 regrow_log(td->bw_log);
2282 regrow_log(td->iops_log);
2283 td->flags &= ~TD_F_REGROW_LOGS;
2286 static struct io_logs *get_cur_log(struct io_log *iolog)
2288 struct io_logs *cur_log;
2290 cur_log = iolog_cur_log(iolog);
2292 cur_log = get_new_log(iolog);
2297 if (cur_log->nr_samples < cur_log->max_samples)
2301 * Out of space. If we're in IO offload mode, or we're not doing
2302 * per unit logging (hence logging happens outside of the IO thread
2303 * as well), add a new log chunk inline. If we're doing inline
2304 * submissions, flag 'td' as needing a log regrow and we'll take
2305 * care of it on the submission side.
2307 if ((iolog->td && iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD) ||
2308 !per_unit_log(iolog))
2309 return regrow_log(iolog);
2312 iolog->td->flags |= TD_F_REGROW_LOGS;
2314 assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2315 return iolog->pending;
2318 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2319 enum fio_ddir ddir, unsigned long long bs,
2320 unsigned long t, uint64_t offset)
2322 struct io_logs *cur_log;
2324 if (iolog->disabled)
2326 if (flist_empty(&iolog->io_logs))
2327 iolog->avg_last[ddir] = t;
2329 cur_log = get_cur_log(iolog);
2331 struct io_sample *s;
2333 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2336 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2337 io_sample_set_ddir(iolog, s, ddir);
2340 if (iolog->log_offset) {
2341 struct io_sample_offset *so = (void *) s;
2343 so->offset = offset;
2346 cur_log->nr_samples++;
2350 iolog->disabled = true;
2353 static inline void reset_io_stat(struct io_stat *ios)
2355 ios->min_val = -1ULL;
2356 ios->max_val = ios->samples = 0;
2357 ios->mean.u.f = ios->S.u.f = 0;
2360 void reset_io_stats(struct thread_data *td)
2362 struct thread_stat *ts = &td->ts;
2365 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2366 reset_io_stat(&ts->clat_stat[i]);
2367 reset_io_stat(&ts->slat_stat[i]);
2368 reset_io_stat(&ts->lat_stat[i]);
2369 reset_io_stat(&ts->bw_stat[i]);
2370 reset_io_stat(&ts->iops_stat[i]);
2372 ts->io_bytes[i] = 0;
2374 ts->total_io_u[i] = 0;
2375 ts->short_io_u[i] = 0;
2376 ts->drop_io_u[i] = 0;
2378 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
2379 ts->io_u_plat[i][j] = 0;
2381 ts->io_u_sync_plat[j] = 0;
2385 ts->total_io_u[DDIR_SYNC] = 0;
2387 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2388 ts->io_u_map[i] = 0;
2389 ts->io_u_submit[i] = 0;
2390 ts->io_u_complete[i] = 0;
2393 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
2394 ts->io_u_lat_n[i] = 0;
2395 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
2396 ts->io_u_lat_u[i] = 0;
2397 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
2398 ts->io_u_lat_m[i] = 0;
2400 ts->total_submit = 0;
2401 ts->total_complete = 0;
2402 ts->nr_zone_resets = 0;
2403 ts->cachehit = ts->cachemiss = 0;
2406 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2407 unsigned long elapsed, bool log_max)
2410 * Note an entry in the log. Use the mean from the logged samples,
2411 * making sure to properly round up. Only write a log entry if we
2412 * had actual samples done.
2414 if (iolog->avg_window[ddir].samples) {
2415 union io_sample_data data;
2418 data.val = iolog->avg_window[ddir].max_val;
2420 data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2422 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2425 reset_io_stat(&iolog->avg_window[ddir]);
2428 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2433 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2434 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2437 static unsigned long add_log_sample(struct thread_data *td,
2438 struct io_log *iolog,
2439 union io_sample_data data,
2440 enum fio_ddir ddir, unsigned long long bs,
2443 unsigned long elapsed, this_window;
2448 elapsed = mtime_since_now(&td->epoch);
2451 * If no time averaging, just add the log sample.
2453 if (!iolog->avg_msec) {
2454 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2459 * Add the sample. If the time period has passed, then
2460 * add that entry to the log and clear.
2462 add_stat_sample(&iolog->avg_window[ddir], data.val);
2465 * If period hasn't passed, adding the above sample is all we
2468 this_window = elapsed - iolog->avg_last[ddir];
2469 if (elapsed < iolog->avg_last[ddir])
2470 return iolog->avg_last[ddir] - elapsed;
2471 else if (this_window < iolog->avg_msec) {
2472 unsigned long diff = iolog->avg_msec - this_window;
2474 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2478 __add_stat_to_log(iolog, ddir, elapsed, td->o.log_max != 0);
2480 iolog->avg_last[ddir] = elapsed - (this_window - iolog->avg_msec);
2481 return iolog->avg_msec;
2484 void finalize_logs(struct thread_data *td, bool unit_logs)
2486 unsigned long elapsed;
2488 elapsed = mtime_since_now(&td->epoch);
2490 if (td->clat_log && unit_logs)
2491 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2492 if (td->slat_log && unit_logs)
2493 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2494 if (td->lat_log && unit_logs)
2495 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2496 if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2497 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2498 if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2499 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2502 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned long long bs)
2504 struct io_log *iolog;
2509 iolog = agg_io_log[ddir];
2510 __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2513 void add_sync_clat_sample(struct thread_stat *ts, unsigned long long nsec)
2515 unsigned int idx = plat_val_to_idx(nsec);
2516 assert(idx < FIO_IO_U_PLAT_NR);
2518 ts->io_u_sync_plat[idx]++;
2519 add_stat_sample(&ts->sync_stat, nsec);
2522 static void add_clat_percentile_sample(struct thread_stat *ts,
2523 unsigned long long nsec, enum fio_ddir ddir)
2525 unsigned int idx = plat_val_to_idx(nsec);
2526 assert(idx < FIO_IO_U_PLAT_NR);
2528 ts->io_u_plat[ddir][idx]++;
2531 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2532 unsigned long long nsec, unsigned long long bs,
2535 const bool needs_lock = td_async_processing(td);
2536 unsigned long elapsed, this_window;
2537 struct thread_stat *ts = &td->ts;
2538 struct io_log *iolog = td->clat_hist_log;
2543 add_stat_sample(&ts->clat_stat[ddir], nsec);
2546 add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
2549 if (ts->clat_percentiles)
2550 add_clat_percentile_sample(ts, nsec, ddir);
2552 if (iolog && iolog->hist_msec) {
2553 struct io_hist *hw = &iolog->hist_window[ddir];
2556 elapsed = mtime_since_now(&td->epoch);
2558 hw->hist_last = elapsed;
2559 this_window = elapsed - hw->hist_last;
2561 if (this_window >= iolog->hist_msec) {
2562 uint64_t *io_u_plat;
2563 struct io_u_plat_entry *dst;
2566 * Make a byte-for-byte copy of the latency histogram
2567 * stored in td->ts.io_u_plat[ddir], recording it in a
2568 * log sample. Note that the matching call to free() is
2569 * located in iolog.c after printing this sample to the
2572 io_u_plat = (uint64_t *) td->ts.io_u_plat[ddir];
2573 dst = malloc(sizeof(struct io_u_plat_entry));
2574 memcpy(&(dst->io_u_plat), io_u_plat,
2575 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2576 flist_add(&dst->list, &hw->list);
2577 __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2581 * Update the last time we recorded as being now, minus
2582 * any drift in time we encountered before actually
2583 * making the record.
2585 hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2591 __td_io_u_unlock(td);
2594 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2595 unsigned long usec, unsigned long long bs, uint64_t offset)
2597 const bool needs_lock = td_async_processing(td);
2598 struct thread_stat *ts = &td->ts;
2606 add_stat_sample(&ts->slat_stat[ddir], usec);
2609 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2612 __td_io_u_unlock(td);
2615 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2616 unsigned long long nsec, unsigned long long bs,
2619 const bool needs_lock = td_async_processing(td);
2620 struct thread_stat *ts = &td->ts;
2628 add_stat_sample(&ts->lat_stat[ddir], nsec);
2631 add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
2634 if (ts->lat_percentiles)
2635 add_clat_percentile_sample(ts, nsec, ddir);
2638 __td_io_u_unlock(td);
2641 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2642 unsigned int bytes, unsigned long long spent)
2644 const bool needs_lock = td_async_processing(td);
2645 struct thread_stat *ts = &td->ts;
2649 rate = (unsigned long) (bytes * 1000000ULL / spent);
2656 add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2659 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2660 bytes, io_u->offset);
2662 td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2665 __td_io_u_unlock(td);
2668 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
2669 struct timespec *t, unsigned int avg_time,
2670 uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
2671 struct io_stat *stat, struct io_log *log,
2674 const bool needs_lock = td_async_processing(td);
2675 unsigned long spent, rate;
2677 unsigned long next, next_log;
2679 next_log = avg_time;
2681 spent = mtime_since(parent_tv, t);
2682 if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
2683 return avg_time - spent;
2689 * Compute both read and write rates for the interval.
2691 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2694 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
2696 continue; /* No entries for interval */
2700 rate = delta * 1000 / spent / 1024; /* KiB/s */
2702 rate = (delta * 1000) / spent;
2706 add_stat_sample(&stat[ddir], rate);
2709 unsigned long long bs = 0;
2711 if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2712 bs = td->o.min_bs[ddir];
2714 next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0);
2715 next_log = min(next_log, next);
2718 stat_io_bytes[ddir] = this_io_bytes[ddir];
2721 timespec_add_msec(parent_tv, avg_time);
2724 __td_io_u_unlock(td);
2726 if (spent <= avg_time)
2729 next = avg_time - (1 + spent - avg_time);
2731 return min(next, next_log);
2734 static int add_bw_samples(struct thread_data *td, struct timespec *t)
2736 return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
2737 td->this_io_bytes, td->stat_io_bytes,
2738 td->ts.bw_stat, td->bw_log, true);
2741 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2744 const bool needs_lock = td_async_processing(td);
2745 struct thread_stat *ts = &td->ts;
2750 add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2753 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2754 bytes, io_u->offset);
2756 td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2759 __td_io_u_unlock(td);
2762 static int add_iops_samples(struct thread_data *td, struct timespec *t)
2764 return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
2765 td->this_io_blocks, td->stat_io_blocks,
2766 td->ts.iops_stat, td->iops_log, false);
2770 * Returns msecs to next event
2772 int calc_log_samples(void)
2774 struct thread_data *td;
2775 unsigned int next = ~0U, tmp;
2776 struct timespec now;
2779 fio_gettime(&now, NULL);
2781 for_each_td(td, i) {
2784 if (in_ramp_time(td) ||
2785 !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2786 next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2790 (td->bw_log && !per_unit_log(td->bw_log))) {
2791 tmp = add_bw_samples(td, &now);
2795 if (!td->iops_log ||
2796 (td->iops_log && !per_unit_log(td->iops_log))) {
2797 tmp = add_iops_samples(td, &now);
2803 return next == ~0U ? 0 : next;
2806 void stat_init(void)
2808 stat_sem = fio_sem_init(FIO_SEM_UNLOCKED);
2811 void stat_exit(void)
2814 * When we have the mutex, we know out-of-band access to it
2817 fio_sem_down(stat_sem);
2818 fio_sem_remove(stat_sem);
2822 * Called from signal handler. Wake up status thread.
2824 void show_running_run_stats(void)
2829 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2831 /* Ignore io_u's which span multiple blocks--they will just get
2832 * inaccurate counts. */
2833 int idx = (io_u->offset - io_u->file->file_offset)
2834 / td->o.bs[DDIR_TRIM];
2835 uint32_t *info = &td->ts.block_infos[idx];
2836 assert(idx < td->ts.nr_block_infos);