9 #include "lib/ieee754.h"
11 #include "lib/getrusage.h"
14 #include "lib/output_buffer.h"
15 #include "helper_thread.h"
20 #define LOG_MSEC_SLACK 1
22 struct fio_sem *stat_sem;
24 void clear_rusage_stat(struct thread_data *td)
26 struct thread_stat *ts = &td->ts;
28 fio_getrusage(&td->ru_start);
29 ts->usr_time = ts->sys_time = 0;
31 ts->minf = ts->majf = 0;
34 void update_rusage_stat(struct thread_data *td)
36 struct thread_stat *ts = &td->ts;
38 fio_getrusage(&td->ru_end);
39 ts->usr_time += mtime_since_tv(&td->ru_start.ru_utime,
40 &td->ru_end.ru_utime);
41 ts->sys_time += mtime_since_tv(&td->ru_start.ru_stime,
42 &td->ru_end.ru_stime);
43 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
44 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
45 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
46 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
48 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
52 * Given a latency, return the index of the corresponding bucket in
53 * the structure tracking percentiles.
55 * (1) find the group (and error bits) that the value (latency)
56 * belongs to by looking at its MSB. (2) find the bucket number in the
57 * group by looking at the index bits.
60 static unsigned int plat_val_to_idx(unsigned long long val)
62 unsigned int msb, error_bits, base, offset, idx;
64 /* Find MSB starting from bit 0 */
68 msb = (sizeof(val)*8) - __builtin_clzll(val) - 1;
71 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
72 * all bits of the sample as index
74 if (msb <= FIO_IO_U_PLAT_BITS)
77 /* Compute the number of error bits to discard*/
78 error_bits = msb - FIO_IO_U_PLAT_BITS;
80 /* Compute the number of buckets before the group */
81 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
84 * Discard the error bits and apply the mask to find the
85 * index for the buckets in the group
87 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
89 /* Make sure the index does not exceed (array size - 1) */
90 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
91 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
97 * Convert the given index of the bucket array to the value
98 * represented by the bucket
100 static unsigned long long plat_idx_to_val(unsigned int idx)
102 unsigned int error_bits;
103 unsigned long long k, base;
105 assert(idx < FIO_IO_U_PLAT_NR);
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))
112 /* Find the group and compute the minimum value of that group */
113 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
114 base = ((unsigned long long) 1) << (error_bits + FIO_IO_U_PLAT_BITS);
116 /* Find its bucket number of the group */
117 k = idx % FIO_IO_U_PLAT_VAL;
119 /* Return the mean of the range of the bucket */
120 return base + ((k + 0.5) * (1 << error_bits));
123 static int double_cmp(const void *a, const void *b)
125 const fio_fp64_t fa = *(const fio_fp64_t *) a;
126 const fio_fp64_t fb = *(const fio_fp64_t *) b;
131 else if (fa.u.f < fb.u.f)
137 unsigned int calc_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
138 fio_fp64_t *plist, unsigned long long **output,
139 unsigned long long *maxv, unsigned long long *minv)
141 unsigned long long sum = 0;
142 unsigned int len, i, j = 0;
143 unsigned int oval_len = 0;
144 unsigned long long *ovals = NULL;
151 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
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.
163 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
166 * Calculate bucket values, note down max and min values
169 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
171 while (sum >= (plist[j].u.f / 100.0 * nr)) {
172 assert(plist[j].u.f <= 100.0);
176 ovals = realloc(ovals, oval_len * sizeof(*ovals));
179 ovals[j] = plat_idx_to_val(i);
180 if (ovals[j] < *minv)
182 if (ovals[j] > *maxv)
185 is_last = (j == len - 1) != 0;
198 * Find and display the p-th percentile of clat
200 static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
201 fio_fp64_t *plist, unsigned int precision,
202 const char *pre, struct buf_output *out)
204 unsigned int divisor, len, i, j = 0;
205 unsigned long long minv, maxv;
206 unsigned long long *ovals;
207 int per_line, scale_down, time_width;
211 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
216 * We default to nsecs, but if the value range is such that we
217 * should scale down to usecs or msecs, do that.
219 if (minv > 2000000 && maxv > 99999999ULL) {
222 log_buf(out, " %s percentiles (msec):\n |", pre);
223 } else if (minv > 2000 && maxv > 99999) {
226 log_buf(out, " %s percentiles (usec):\n |", pre);
230 log_buf(out, " %s percentiles (nsec):\n |", pre);
234 time_width = max(5, (int) (log10(maxv / divisor) + 1));
235 snprintf(fmt, sizeof(fmt), " %%%u.%ufth=[%%%dllu]%%c", precision + 3,
236 precision, time_width);
237 /* fmt will be something like " %5.2fth=[%4llu]%c" */
238 per_line = (80 - 7) / (precision + 10 + time_width);
240 for (j = 0; j < len; j++) {
242 if (j != 0 && (j % per_line) == 0)
245 /* end of the list */
246 is_last = (j == len - 1) != 0;
248 for (i = 0; i < scale_down; i++)
249 ovals[j] = (ovals[j] + 999) / 1000;
251 log_buf(out, fmt, plist[j].u.f, ovals[j], is_last ? '\n' : ',');
256 if ((j % per_line) == per_line - 1) /* for formatting */
265 bool calc_lat(struct io_stat *is, unsigned long long *min,
266 unsigned long long *max, double *mean, double *dev)
268 double n = (double) is->samples;
275 *mean = is->mean.u.f;
278 *dev = sqrt(is->S.u.f / (n - 1.0));
285 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
287 char *io, *agg, *min, *max;
288 char *ioalt, *aggalt, *minalt, *maxalt;
289 const char *str[] = { " READ", " WRITE" , " TRIM"};
292 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
294 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
295 const int i2p = is_power_of_2(rs->kb_base);
300 io = num2str(rs->iobytes[i], rs->sig_figs, 1, i2p, N2S_BYTE);
301 ioalt = num2str(rs->iobytes[i], rs->sig_figs, 1, !i2p, N2S_BYTE);
302 agg = num2str(rs->agg[i], rs->sig_figs, 1, i2p, rs->unit_base);
303 aggalt = num2str(rs->agg[i], rs->sig_figs, 1, !i2p, rs->unit_base);
304 min = num2str(rs->min_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
305 minalt = num2str(rs->min_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
306 max = num2str(rs->max_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
307 maxalt = num2str(rs->max_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
308 log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
309 rs->unified_rw_rep ? " MIXED" : str[i],
310 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
311 (unsigned long long) rs->min_run[i],
312 (unsigned long long) rs->max_run[i]);
325 void stat_calc_dist(uint64_t *map, unsigned long total, double *io_u_dist)
330 * Do depth distribution calculations
332 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
334 io_u_dist[i] = (double) map[i] / (double) total;
335 io_u_dist[i] *= 100.0;
336 if (io_u_dist[i] < 0.1 && map[i])
343 static void stat_calc_lat(struct thread_stat *ts, double *dst,
344 uint64_t *src, int nr)
346 unsigned long total = ddir_rw_sum(ts->total_io_u);
350 * Do latency distribution calculations
352 for (i = 0; i < nr; i++) {
354 dst[i] = (double) src[i] / (double) total;
356 if (dst[i] < 0.01 && src[i])
364 * To keep the terse format unaltered, add all of the ns latency
365 * buckets to the first us latency bucket
367 static void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
369 unsigned long ntotal = 0, total = ddir_rw_sum(ts->total_io_u);
372 stat_calc_lat(ts, io_u_lat_u, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
374 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
375 ntotal += ts->io_u_lat_n[i];
377 io_u_lat_u[0] += 100.0 * (double) ntotal / (double) total;
380 void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat)
382 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_n, FIO_IO_U_LAT_N_NR);
385 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
387 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
390 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
392 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
395 void display_lat(const char *name, unsigned long long min,
396 unsigned long long max, double mean, double dev,
397 struct buf_output *out)
399 const char *base = "(nsec)";
402 if (nsec_to_msec(&min, &max, &mean, &dev))
404 else if (nsec_to_usec(&min, &max, &mean, &dev))
407 minp = num2str(min, 6, 1, 0, N2S_NONE);
408 maxp = num2str(max, 6, 1, 0, N2S_NONE);
410 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
411 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
417 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
418 int ddir, struct buf_output *out)
421 unsigned long long min, max, bw, iops;
423 char *io_p, *bw_p, *bw_p_alt, *iops_p, *zbd_w_st = NULL;
426 if (ddir_sync(ddir)) {
427 if (calc_lat(&ts->sync_stat, &min, &max, &mean, &dev)) {
428 log_buf(out, " %s:\n", "fsync/fdatasync/sync_file_range");
429 display_lat(io_ddir_name(ddir), min, max, mean, dev, out);
430 show_clat_percentiles(ts->io_u_sync_plat,
431 ts->sync_stat.samples,
433 ts->percentile_precision,
434 io_ddir_name(ddir), out);
439 assert(ddir_rw(ddir));
441 if (!ts->runtime[ddir])
444 i2p = is_power_of_2(rs->kb_base);
445 runt = ts->runtime[ddir];
447 bw = (1000 * ts->io_bytes[ddir]) / runt;
448 io_p = num2str(ts->io_bytes[ddir], ts->sig_figs, 1, i2p, N2S_BYTE);
449 bw_p = num2str(bw, ts->sig_figs, 1, i2p, ts->unit_base);
450 bw_p_alt = num2str(bw, ts->sig_figs, 1, !i2p, ts->unit_base);
452 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
453 iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
454 if (ddir == DDIR_WRITE)
455 zbd_w_st = zbd_write_status(ts);
457 log_buf(out, " %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
458 rs->unified_rw_rep ? "mixed" : io_ddir_name(ddir),
459 iops_p, bw_p, bw_p_alt, io_p,
460 (unsigned long long) ts->runtime[ddir],
469 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
470 display_lat("slat", min, max, mean, dev, out);
471 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
472 display_lat("clat", min, max, mean, dev, out);
473 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
474 display_lat(" lat", min, max, mean, dev, out);
476 if (ts->clat_percentiles || ts->lat_percentiles) {
477 const char *name = ts->clat_percentiles ? "clat" : " lat";
480 if (ts->clat_percentiles)
481 samples = ts->clat_stat[ddir].samples;
483 samples = ts->lat_stat[ddir].samples;
485 show_clat_percentiles(ts->io_u_plat[ddir],
488 ts->percentile_precision, name, out);
490 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
491 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
494 if ((rs->unit_base == 1) && i2p)
496 else if (rs->unit_base == 1)
504 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
505 if (p_of_agg > 100.0)
509 if (rs->unit_base == 1) {
516 if (mean > fkb_base * fkb_base) {
521 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
524 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
525 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
526 bw_str, min, max, p_of_agg, mean, dev,
527 (&ts->bw_stat[ddir])->samples);
529 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
530 log_buf(out, " iops : min=%5llu, max=%5llu, "
531 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
532 min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
536 static bool show_lat(double *io_u_lat, int nr, const char **ranges,
537 const char *msg, struct buf_output *out)
539 bool new_line = true, shown = false;
542 for (i = 0; i < nr; i++) {
543 if (io_u_lat[i] <= 0.0)
549 log_buf(out, " lat (%s) : ", msg);
555 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
567 static void show_lat_n(double *io_u_lat_n, struct buf_output *out)
569 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
570 "250=", "500=", "750=", "1000=", };
572 show_lat(io_u_lat_n, FIO_IO_U_LAT_N_NR, ranges, "nsec", out);
575 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
577 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
578 "250=", "500=", "750=", "1000=", };
580 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
583 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
585 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
586 "250=", "500=", "750=", "1000=", "2000=",
589 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
592 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
594 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
595 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
596 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
598 stat_calc_lat_n(ts, io_u_lat_n);
599 stat_calc_lat_u(ts, io_u_lat_u);
600 stat_calc_lat_m(ts, io_u_lat_m);
602 show_lat_n(io_u_lat_n, out);
603 show_lat_u(io_u_lat_u, out);
604 show_lat_m(io_u_lat_m, out);
607 static int block_state_category(int block_state)
609 switch (block_state) {
610 case BLOCK_STATE_UNINIT:
612 case BLOCK_STATE_TRIMMED:
613 case BLOCK_STATE_WRITTEN:
615 case BLOCK_STATE_WRITE_FAILURE:
616 case BLOCK_STATE_TRIM_FAILURE:
619 /* Silence compile warning on some BSDs and have a return */
625 static int compare_block_infos(const void *bs1, const void *bs2)
627 uint64_t block1 = *(uint64_t *)bs1;
628 uint64_t block2 = *(uint64_t *)bs2;
629 int state1 = BLOCK_INFO_STATE(block1);
630 int state2 = BLOCK_INFO_STATE(block2);
631 int bscat1 = block_state_category(state1);
632 int bscat2 = block_state_category(state2);
633 int cycles1 = BLOCK_INFO_TRIMS(block1);
634 int cycles2 = BLOCK_INFO_TRIMS(block2);
641 if (cycles1 < cycles2)
643 if (cycles1 > cycles2)
651 assert(block1 == block2);
655 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
656 fio_fp64_t *plist, unsigned int **percentiles,
662 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
664 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
671 * Sort the percentile list. Note that it may already be sorted if
672 * we are using the default values, but since it's a short list this
673 * isn't a worry. Also note that this does not work for NaN values.
676 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
678 /* Start only after the uninit entries end */
680 nr_uninit < nr_block_infos
681 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
685 if (nr_uninit == nr_block_infos)
688 *percentiles = calloc(len, sizeof(**percentiles));
690 for (i = 0; i < len; i++) {
691 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
693 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
696 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
697 for (i = 0; i < nr_block_infos; i++)
698 types[BLOCK_INFO_STATE(block_infos[i])]++;
703 static const char *block_state_names[] = {
704 [BLOCK_STATE_UNINIT] = "unwritten",
705 [BLOCK_STATE_TRIMMED] = "trimmed",
706 [BLOCK_STATE_WRITTEN] = "written",
707 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
708 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
711 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
712 fio_fp64_t *plist, struct buf_output *out)
715 unsigned int *percentiles = NULL;
716 unsigned int block_state_counts[BLOCK_STATE_COUNT];
718 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
719 &percentiles, block_state_counts);
721 log_buf(out, " block lifetime percentiles :\n |");
723 for (i = 0; i < len; i++) {
724 uint32_t block_info = percentiles[i];
725 #define LINE_LENGTH 75
726 char str[LINE_LENGTH];
727 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
728 plist[i].u.f, block_info,
729 i == len - 1 ? '\n' : ',');
730 assert(strln < LINE_LENGTH);
731 if (pos + strln > LINE_LENGTH) {
733 log_buf(out, "\n |");
735 log_buf(out, "%s", str);
742 log_buf(out, " states :");
743 for (i = 0; i < BLOCK_STATE_COUNT; i++)
744 log_buf(out, " %s=%u%c",
745 block_state_names[i], block_state_counts[i],
746 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
749 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
751 char *p1, *p1alt, *p2;
752 unsigned long long bw_mean, iops_mean;
753 const int i2p = is_power_of_2(ts->kb_base);
758 bw_mean = steadystate_bw_mean(ts);
759 iops_mean = steadystate_iops_mean(ts);
761 p1 = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, i2p, ts->unit_base);
762 p1alt = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, !i2p, ts->unit_base);
763 p2 = num2str(iops_mean, ts->sig_figs, 1, 0, N2S_NONE);
765 log_buf(out, " steadystate : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
766 ts->ss_state & FIO_SS_ATTAINED ? "yes" : "no",
768 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
769 ts->ss_state & FIO_SS_SLOPE ? " slope": " mean dev",
770 ts->ss_criterion.u.f,
771 ts->ss_state & FIO_SS_PCT ? "%" : "");
778 static void show_thread_status_normal(struct thread_stat *ts,
779 struct group_run_stats *rs,
780 struct buf_output *out)
782 double usr_cpu, sys_cpu;
783 unsigned long runtime;
784 double io_u_dist[FIO_IO_U_MAP_NR];
788 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
791 memset(time_buf, 0, sizeof(time_buf));
794 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
797 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
798 ts->name, ts->groupid, ts->members,
799 ts->error, (int) ts->pid, time_buf);
801 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
802 ts->name, ts->groupid, ts->members,
803 ts->error, ts->verror, (int) ts->pid,
807 if (strlen(ts->description))
808 log_buf(out, " Description : [%s]\n", ts->description);
810 if (ts->io_bytes[DDIR_READ])
811 show_ddir_status(rs, ts, DDIR_READ, out);
812 if (ts->io_bytes[DDIR_WRITE])
813 show_ddir_status(rs, ts, DDIR_WRITE, out);
814 if (ts->io_bytes[DDIR_TRIM])
815 show_ddir_status(rs, ts, DDIR_TRIM, out);
817 show_latencies(ts, out);
819 if (ts->sync_stat.samples)
820 show_ddir_status(rs, ts, DDIR_SYNC, out);
822 runtime = ts->total_run_time;
824 double runt = (double) runtime;
826 usr_cpu = (double) ts->usr_time * 100 / runt;
827 sys_cpu = (double) ts->sys_time * 100 / runt;
833 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
834 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
835 (unsigned long long) ts->ctx,
836 (unsigned long long) ts->majf,
837 (unsigned long long) ts->minf);
839 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
840 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
841 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
842 io_u_dist[1], io_u_dist[2],
843 io_u_dist[3], io_u_dist[4],
844 io_u_dist[5], io_u_dist[6]);
846 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
847 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
848 " 32=%3.1f%%, 64=%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]);
852 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
853 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
854 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
855 io_u_dist[1], io_u_dist[2],
856 io_u_dist[3], io_u_dist[4],
857 io_u_dist[5], io_u_dist[6]);
858 log_buf(out, " issued rwts: total=%llu,%llu,%llu,%llu"
859 " short=%llu,%llu,%llu,0"
860 " dropped=%llu,%llu,%llu,0\n",
861 (unsigned long long) ts->total_io_u[0],
862 (unsigned long long) ts->total_io_u[1],
863 (unsigned long long) ts->total_io_u[2],
864 (unsigned long long) ts->total_io_u[3],
865 (unsigned long long) ts->short_io_u[0],
866 (unsigned long long) ts->short_io_u[1],
867 (unsigned long long) ts->short_io_u[2],
868 (unsigned long long) ts->drop_io_u[0],
869 (unsigned long long) ts->drop_io_u[1],
870 (unsigned long long) ts->drop_io_u[2]);
871 if (ts->continue_on_error) {
872 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
873 (unsigned long long)ts->total_err_count,
875 strerror(ts->first_error));
877 if (ts->latency_depth) {
878 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
879 (unsigned long long)ts->latency_target,
880 (unsigned long long)ts->latency_window,
881 ts->latency_percentile.u.f,
885 if (ts->nr_block_infos)
886 show_block_infos(ts->nr_block_infos, ts->block_infos,
887 ts->percentile_list, out);
890 show_ss_normal(ts, out);
892 if (lat_ts_has_stats(ts)) {
893 log_buf(out, " Stepped latency report\n");
894 lat_step_report(ts, out);
898 static void show_ddir_status_terse(struct thread_stat *ts,
899 struct group_run_stats *rs, int ddir,
900 int ver, struct buf_output *out)
902 unsigned long long min, max, minv, maxv, bw, iops;
903 unsigned long long *ovals = NULL;
908 assert(ddir_rw(ddir));
911 if (ts->runtime[ddir]) {
912 uint64_t runt = ts->runtime[ddir];
914 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
915 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
918 log_buf(out, ";%llu;%llu;%llu;%llu",
919 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
920 (unsigned long long) ts->runtime[ddir]);
922 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
923 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
925 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
927 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
928 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
930 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
932 if (ts->clat_percentiles || ts->lat_percentiles) {
933 len = calc_clat_percentiles(ts->io_u_plat[ddir],
934 ts->clat_stat[ddir].samples,
935 ts->percentile_list, &ovals, &maxv,
940 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
942 log_buf(out, ";0%%=0");
945 log_buf(out, ";%f%%=%llu", ts->percentile_list[i].u.f, ovals[i]/1000);
948 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
949 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
951 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
956 bw_stat = calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev);
958 double p_of_agg = 100.0;
961 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
962 if (p_of_agg > 100.0)
966 log_buf(out, ";%llu;%llu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
968 log_buf(out, ";%llu;%llu;%f%%;%f;%f", 0ULL, 0ULL, 0.0, 0.0, 0.0);
972 log_buf(out, ";%" PRIu64, (&ts->bw_stat[ddir])->samples);
974 log_buf(out, ";%lu", 0UL);
976 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev))
977 log_buf(out, ";%llu;%llu;%f;%f;%" PRIu64, min, max,
978 mean, dev, (&ts->iops_stat[ddir])->samples);
980 log_buf(out, ";%llu;%llu;%f;%f;%lu", 0ULL, 0ULL, 0.0, 0.0, 0UL);
984 static void add_ddir_status_json(struct thread_stat *ts,
985 struct group_run_stats *rs, int ddir, struct json_object *parent)
987 unsigned long long min, max, minv, maxv;
988 unsigned long long bw_bytes, bw;
989 unsigned long long *ovals = NULL;
990 double mean, dev, iops;
993 struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object = NULL;
995 double p_of_agg = 100.0;
997 assert(ddir_rw(ddir) || ddir_sync(ddir));
999 if (ts->unified_rw_rep && ddir != DDIR_READ)
1002 dir_object = json_create_object();
1003 json_object_add_value_object(parent,
1004 ts->unified_rw_rep ? "mixed" : io_ddir_name(ddir), dir_object);
1006 if (ddir_rw(ddir)) {
1010 if (ts->runtime[ddir]) {
1011 uint64_t runt = ts->runtime[ddir];
1013 bw_bytes = ((1000 * ts->io_bytes[ddir]) / runt); /* Bytes/s */
1014 bw = bw_bytes / 1024; /* KiB/s */
1015 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
1018 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
1019 json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
1020 json_object_add_value_int(dir_object, "bw_bytes", bw_bytes);
1021 json_object_add_value_int(dir_object, "bw", bw);
1022 json_object_add_value_float(dir_object, "iops", iops);
1023 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
1024 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
1025 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
1026 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
1028 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
1032 tmp_object = json_create_object();
1033 json_object_add_value_object(dir_object, "slat_ns", tmp_object);
1034 json_object_add_value_int(tmp_object, "min", min);
1035 json_object_add_value_int(tmp_object, "max", max);
1036 json_object_add_value_float(tmp_object, "mean", mean);
1037 json_object_add_value_float(tmp_object, "stddev", dev);
1039 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
1043 tmp_object = json_create_object();
1044 json_object_add_value_object(dir_object, "clat_ns", tmp_object);
1045 json_object_add_value_int(tmp_object, "min", min);
1046 json_object_add_value_int(tmp_object, "max", max);
1047 json_object_add_value_float(tmp_object, "mean", mean);
1048 json_object_add_value_float(tmp_object, "stddev", dev);
1050 if (!calc_lat(&ts->sync_stat, &min, &max, &mean, &dev)) {
1055 tmp_object = json_create_object();
1056 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1057 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[DDIR_SYNC]);
1058 json_object_add_value_int(tmp_object, "min", min);
1059 json_object_add_value_int(tmp_object, "max", max);
1060 json_object_add_value_float(tmp_object, "mean", mean);
1061 json_object_add_value_float(tmp_object, "stddev", dev);
1064 if (ts->clat_percentiles || ts->lat_percentiles) {
1065 if (ddir_rw(ddir)) {
1068 if (ts->clat_percentiles)
1069 samples = ts->clat_stat[ddir].samples;
1071 samples = ts->lat_stat[ddir].samples;
1073 len = calc_clat_percentiles(ts->io_u_plat[ddir],
1074 samples, ts->percentile_list, &ovals,
1077 len = calc_clat_percentiles(ts->io_u_sync_plat,
1078 ts->sync_stat.samples,
1079 ts->percentile_list, &ovals, &maxv,
1083 if (len > FIO_IO_U_LIST_MAX_LEN)
1084 len = FIO_IO_U_LIST_MAX_LEN;
1088 percentile_object = json_create_object();
1089 json_object_add_value_object(tmp_object, "percentile", percentile_object);
1090 for (i = 0; i < len; i++) {
1091 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
1092 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
1095 if (output_format & FIO_OUTPUT_JSON_PLUS) {
1096 clat_bins_object = json_create_object();
1097 if (ts->clat_percentiles)
1098 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1100 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
1101 if (ddir_rw(ddir)) {
1102 if (ts->io_u_plat[ddir][i]) {
1103 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1104 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
1107 if (ts->io_u_sync_plat[i]) {
1108 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1109 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_sync_plat[i]);
1118 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
1122 tmp_object = json_create_object();
1123 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1124 json_object_add_value_int(tmp_object, "min", min);
1125 json_object_add_value_int(tmp_object, "max", max);
1126 json_object_add_value_float(tmp_object, "mean", mean);
1127 json_object_add_value_float(tmp_object, "stddev", dev);
1128 if (output_format & FIO_OUTPUT_JSON_PLUS && ts->lat_percentiles)
1129 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1134 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
1135 if (rs->agg[ddir]) {
1136 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
1137 if (p_of_agg > 100.0)
1142 p_of_agg = mean = dev = 0.0;
1144 json_object_add_value_int(dir_object, "bw_min", min);
1145 json_object_add_value_int(dir_object, "bw_max", max);
1146 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1147 json_object_add_value_float(dir_object, "bw_mean", mean);
1148 json_object_add_value_float(dir_object, "bw_dev", dev);
1149 json_object_add_value_int(dir_object, "bw_samples",
1150 (&ts->bw_stat[ddir])->samples);
1152 if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
1156 json_object_add_value_int(dir_object, "iops_min", min);
1157 json_object_add_value_int(dir_object, "iops_max", max);
1158 json_object_add_value_float(dir_object, "iops_mean", mean);
1159 json_object_add_value_float(dir_object, "iops_stddev", dev);
1160 json_object_add_value_int(dir_object, "iops_samples",
1161 (&ts->iops_stat[ddir])->samples);
1164 static void show_thread_status_terse_all(struct thread_stat *ts,
1165 struct group_run_stats *rs, int ver,
1166 struct buf_output *out)
1168 double io_u_dist[FIO_IO_U_MAP_NR];
1169 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1170 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1171 double usr_cpu, sys_cpu;
1176 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1178 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1179 ts->name, ts->groupid, ts->error);
1181 /* Log Read Status */
1182 show_ddir_status_terse(ts, rs, DDIR_READ, ver, out);
1183 /* Log Write Status */
1184 show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
1185 /* Log Trim Status */
1186 if (ver == 2 || ver == 4 || ver == 5)
1187 show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
1190 if (ts->total_run_time) {
1191 double runt = (double) ts->total_run_time;
1193 usr_cpu = (double) ts->usr_time * 100 / runt;
1194 sys_cpu = (double) ts->sys_time * 100 / runt;
1200 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1201 (unsigned long long) ts->ctx,
1202 (unsigned long long) ts->majf,
1203 (unsigned long long) ts->minf);
1205 /* Calc % distribution of IO depths, usecond, msecond latency */
1206 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1207 stat_calc_lat_nu(ts, io_u_lat_u);
1208 stat_calc_lat_m(ts, io_u_lat_m);
1210 /* Only show fixed 7 I/O depth levels*/
1211 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1212 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1213 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1215 /* Microsecond latency */
1216 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1217 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1218 /* Millisecond latency */
1219 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1220 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1222 /* disk util stats, if any */
1223 if (ver >= 3 && is_running_backend())
1224 show_disk_util(1, NULL, out);
1226 /* Additional output if continue_on_error set - default off*/
1227 if (ts->continue_on_error)
1228 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1232 /* Additional output if description is set */
1233 if (strlen(ts->description))
1234 log_buf(out, ";%s", ts->description);
1239 static void json_add_job_opts(struct json_object *root, const char *name,
1240 struct flist_head *opt_list)
1242 struct json_object *dir_object;
1243 struct flist_head *entry;
1244 struct print_option *p;
1246 if (flist_empty(opt_list))
1249 dir_object = json_create_object();
1250 json_object_add_value_object(root, name, dir_object);
1252 flist_for_each(entry, opt_list) {
1253 const char *pos = "";
1255 p = flist_entry(entry, struct print_option, list);
1258 json_object_add_value_string(dir_object, p->name, pos);
1262 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1263 struct group_run_stats *rs,
1264 struct flist_head *opt_list)
1266 struct json_object *root, *tmp;
1267 struct jobs_eta *je;
1268 double io_u_dist[FIO_IO_U_MAP_NR];
1269 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
1270 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1271 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1272 double usr_cpu, sys_cpu;
1276 root = json_create_object();
1277 json_object_add_value_string(root, "jobname", ts->name);
1278 json_object_add_value_int(root, "groupid", ts->groupid);
1279 json_object_add_value_int(root, "error", ts->error);
1282 je = get_jobs_eta(true, &size);
1284 json_object_add_value_int(root, "eta", je->eta_sec);
1285 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1289 json_add_job_opts(root, "job options", opt_list);
1291 add_ddir_status_json(ts, rs, DDIR_READ, root);
1292 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1293 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1294 add_ddir_status_json(ts, rs, DDIR_SYNC, root);
1297 if (ts->total_run_time) {
1298 double runt = (double) ts->total_run_time;
1300 usr_cpu = (double) ts->usr_time * 100 / runt;
1301 sys_cpu = (double) ts->sys_time * 100 / runt;
1306 json_object_add_value_int(root, "job_runtime", ts->total_run_time);
1307 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1308 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1309 json_object_add_value_int(root, "ctx", ts->ctx);
1310 json_object_add_value_int(root, "majf", ts->majf);
1311 json_object_add_value_int(root, "minf", ts->minf);
1313 /* Calc % distribution of IO depths */
1314 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1315 tmp = json_create_object();
1316 json_object_add_value_object(root, "iodepth_level", tmp);
1317 /* Only show fixed 7 I/O depth levels*/
1318 for (i = 0; i < 7; i++) {
1321 snprintf(name, 20, "%d", 1 << i);
1323 snprintf(name, 20, ">=%d", 1 << i);
1324 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1327 /* Calc % distribution of submit IO depths */
1328 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
1329 tmp = json_create_object();
1330 json_object_add_value_object(root, "iodepth_submit", tmp);
1331 /* Only show fixed 7 I/O depth levels*/
1332 for (i = 0; i < 7; i++) {
1335 snprintf(name, 20, "0");
1337 snprintf(name, 20, "%d", 1 << (i+1));
1339 snprintf(name, 20, ">=%d", 1 << i);
1340 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1343 /* Calc % distribution of completion IO depths */
1344 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
1345 tmp = json_create_object();
1346 json_object_add_value_object(root, "iodepth_complete", tmp);
1347 /* Only show fixed 7 I/O depth levels*/
1348 for (i = 0; i < 7; i++) {
1351 snprintf(name, 20, "0");
1353 snprintf(name, 20, "%d", 1 << (i+1));
1355 snprintf(name, 20, ">=%d", 1 << i);
1356 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1359 /* Calc % distribution of nsecond, usecond, msecond latency */
1360 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1361 stat_calc_lat_n(ts, io_u_lat_n);
1362 stat_calc_lat_u(ts, io_u_lat_u);
1363 stat_calc_lat_m(ts, io_u_lat_m);
1365 /* Nanosecond latency */
1366 tmp = json_create_object();
1367 json_object_add_value_object(root, "latency_ns", tmp);
1368 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++) {
1369 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1370 "250", "500", "750", "1000", };
1371 json_object_add_value_float(tmp, ranges[i], io_u_lat_n[i]);
1373 /* Microsecond latency */
1374 tmp = json_create_object();
1375 json_object_add_value_object(root, "latency_us", tmp);
1376 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1377 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1378 "250", "500", "750", "1000", };
1379 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1381 /* Millisecond latency */
1382 tmp = json_create_object();
1383 json_object_add_value_object(root, "latency_ms", tmp);
1384 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1385 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1386 "250", "500", "750", "1000", "2000",
1388 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1391 /* Additional output if continue_on_error set - default off*/
1392 if (ts->continue_on_error) {
1393 json_object_add_value_int(root, "total_err", ts->total_err_count);
1394 json_object_add_value_int(root, "first_error", ts->first_error);
1397 if (ts->latency_depth) {
1398 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1399 json_object_add_value_int(root, "latency_target", ts->latency_target);
1400 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1401 json_object_add_value_int(root, "latency_window", ts->latency_window);
1404 /* Additional output if description is set */
1405 if (strlen(ts->description))
1406 json_object_add_value_string(root, "desc", ts->description);
1408 if (ts->nr_block_infos) {
1409 /* Block error histogram and types */
1411 unsigned int *percentiles = NULL;
1412 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1414 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1415 ts->percentile_list,
1416 &percentiles, block_state_counts);
1419 struct json_object *block, *percentile_object, *states;
1421 block = json_create_object();
1422 json_object_add_value_object(root, "block", block);
1424 percentile_object = json_create_object();
1425 json_object_add_value_object(block, "percentiles",
1427 for (i = 0; i < len; i++) {
1429 snprintf(buf, sizeof(buf), "%f",
1430 ts->percentile_list[i].u.f);
1431 json_object_add_value_int(percentile_object,
1436 states = json_create_object();
1437 json_object_add_value_object(block, "states", states);
1438 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1439 json_object_add_value_int(states,
1440 block_state_names[state],
1441 block_state_counts[state]);
1448 struct json_object *data;
1449 struct json_array *iops, *bw;
1453 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1454 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
1455 ts->ss_state & FIO_SS_SLOPE ? "_slope" : "",
1456 (float) ts->ss_limit.u.f,
1457 ts->ss_state & FIO_SS_PCT ? "%" : "");
1459 tmp = json_create_object();
1460 json_object_add_value_object(root, "steadystate", tmp);
1461 json_object_add_value_string(tmp, "ss", ss_buf);
1462 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1463 json_object_add_value_int(tmp, "attained", (ts->ss_state & FIO_SS_ATTAINED) > 0);
1465 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1466 ts->ss_state & FIO_SS_PCT ? "%" : "");
1467 json_object_add_value_string(tmp, "criterion", ss_buf);
1468 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1469 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1471 data = json_create_object();
1472 json_object_add_value_object(tmp, "data", data);
1473 bw = json_create_array();
1474 iops = json_create_array();
1477 ** if ss was attained or the buffer is not full,
1478 ** ss->head points to the first element in the list.
1479 ** otherwise it actually points to the second element
1482 if ((ts->ss_state & FIO_SS_ATTAINED) || !(ts->ss_state & FIO_SS_BUFFER_FULL))
1485 j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1486 for (l = 0; l < ts->ss_dur; l++) {
1487 k = (j + l) % ts->ss_dur;
1488 json_array_add_value_int(bw, ts->ss_bw_data[k]);
1489 json_array_add_value_int(iops, ts->ss_iops_data[k]);
1491 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1492 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1493 json_object_add_value_array(data, "iops", iops);
1494 json_object_add_value_array(data, "bw", bw);
1497 if (lat_ts_has_stats(ts)) {
1498 tmp = json_create_object();
1499 json_object_add_value_object(root, "lat_step", tmp);
1502 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1503 struct json_object *val;
1505 if (!__lat_ts_has_stats(ts, i))
1508 val = json_create_object();
1509 json_object_add_value_object(tmp, io_ddir_name(i), val);
1511 for (j = 0; j < ARRAY_SIZE(ts->step_stats); j++) {
1512 struct lat_step_stats *ls = &ts->step_stats[j];
1518 sprintf(name, "%llu", (unsigned long long) ls->iops[i]);
1519 json_object_add_value_float(val, name, ls->avg[i].u.f);
1526 static void show_thread_status_terse(struct thread_stat *ts,
1527 struct group_run_stats *rs,
1528 struct buf_output *out)
1530 if (terse_version >= 2 && terse_version <= 5)
1531 show_thread_status_terse_all(ts, rs, terse_version, out);
1533 log_err("fio: bad terse version!? %d\n", terse_version);
1536 struct json_object *show_thread_status(struct thread_stat *ts,
1537 struct group_run_stats *rs,
1538 struct flist_head *opt_list,
1539 struct buf_output *out)
1541 struct json_object *ret = NULL;
1543 if (output_format & FIO_OUTPUT_TERSE)
1544 show_thread_status_terse(ts, rs, out);
1545 if (output_format & FIO_OUTPUT_JSON)
1546 ret = show_thread_status_json(ts, rs, opt_list);
1547 if (output_format & FIO_OUTPUT_NORMAL)
1548 show_thread_status_normal(ts, rs, out);
1553 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1557 if (src->samples == 0)
1560 dst->min_val = min(dst->min_val, src->min_val);
1561 dst->max_val = max(dst->max_val, src->max_val);
1564 * Compute new mean and S after the merge
1565 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1566 * #Parallel_algorithm>
1569 mean = src->mean.u.f;
1572 double delta = src->mean.u.f - dst->mean.u.f;
1574 mean = ((src->mean.u.f * src->samples) +
1575 (dst->mean.u.f * dst->samples)) /
1576 (dst->samples + src->samples);
1578 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1579 (dst->samples * src->samples) /
1580 (dst->samples + src->samples);
1583 dst->samples += src->samples;
1584 dst->mean.u.f = mean;
1588 static void sum_lat_step_stats(struct lat_step_stats *dst,
1589 struct lat_step_stats *src, bool first)
1593 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1594 if (!dst->iops[i] && !src->iops[i])
1597 dst->avg[i].u.f = src->avg[i].u.f;
1599 dst->avg[i].u.f = ((src->avg[i].u.f * src->iops[i]) +
1600 (dst->avg[i].u.f * dst->iops[i])) /
1601 (dst->iops[i] + src->iops[i]);
1603 dst->iops[i] += src->iops[i];
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);
1641 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1642 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1643 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1644 sum_stat(&dst->iops_stat[l], &src->iops_stat[l], first);
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);
1652 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1653 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1654 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1655 sum_stat(&dst->iops_stat[0], &src->iops_stat[l], first);
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);
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;
1720 for (l = 0; l < ARRAY_SIZE(dst->step_stats); l++)
1721 sum_lat_step_stats(&dst->step_stats[l], &src->step_stats[l], first);
1724 void init_group_run_stat(struct group_run_stats *gs)
1727 memset(gs, 0, sizeof(*gs));
1729 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1730 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1733 void init_thread_stat(struct thread_stat *ts)
1737 memset(ts, 0, sizeof(*ts));
1739 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1740 ts->lat_stat[j].min_val = -1UL;
1741 ts->clat_stat[j].min_val = -1UL;
1742 ts->slat_stat[j].min_val = -1UL;
1743 ts->bw_stat[j].min_val = -1UL;
1744 ts->iops_stat[j].min_val = -1UL;
1746 ts->sync_stat.min_val = -1UL;
1750 void __show_run_stats(void)
1752 struct group_run_stats *runstats, *rs;
1753 struct thread_data *td;
1754 struct thread_stat *threadstats, *ts;
1755 int i, j, k, nr_ts, last_ts, idx;
1756 bool kb_base_warned = false;
1757 bool unit_base_warned = false;
1758 struct json_object *root = NULL;
1759 struct json_array *array = NULL;
1760 struct buf_output output[FIO_OUTPUT_NR];
1761 struct flist_head **opt_lists;
1763 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1765 for (i = 0; i < groupid + 1; i++)
1766 init_group_run_stat(&runstats[i]);
1768 for (i = 0; i < FIO_OUTPUT_NR; i++)
1769 buf_output_init(&output[i]);
1772 * find out how many threads stats we need. if group reporting isn't
1773 * enabled, it's one-per-td.
1777 for_each_td(td, i) {
1778 if (!td->o.group_reporting) {
1782 if (last_ts == td->groupid)
1787 last_ts = td->groupid;
1791 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1792 opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1794 for (i = 0; i < nr_ts; i++) {
1795 init_thread_stat(&threadstats[i]);
1796 opt_lists[i] = NULL;
1802 for_each_td(td, i) {
1805 if (idx && (!td->o.group_reporting ||
1806 (td->o.group_reporting && last_ts != td->groupid))) {
1811 last_ts = td->groupid;
1813 ts = &threadstats[j];
1815 ts->clat_percentiles = td->o.clat_percentiles;
1816 ts->lat_percentiles = td->o.lat_percentiles;
1817 ts->percentile_precision = td->o.percentile_precision;
1818 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1819 opt_lists[j] = &td->opt_list;
1824 if (ts->groupid == -1) {
1826 * These are per-group shared already
1828 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1829 if (td->o.description)
1830 strncpy(ts->description, td->o.description,
1831 FIO_JOBDESC_SIZE - 1);
1833 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1836 * If multiple entries in this group, this is
1839 ts->thread_number = td->thread_number;
1840 ts->groupid = td->groupid;
1843 * first pid in group, not very useful...
1847 ts->kb_base = td->o.kb_base;
1848 ts->unit_base = td->o.unit_base;
1849 ts->sig_figs = td->o.sig_figs;
1850 ts->unified_rw_rep = td->o.unified_rw_rep;
1851 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1852 log_info("fio: kb_base differs for jobs in group, using"
1853 " %u as the base\n", ts->kb_base);
1854 kb_base_warned = true;
1855 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1856 log_info("fio: unit_base differs for jobs in group, using"
1857 " %u as the base\n", ts->unit_base);
1858 unit_base_warned = true;
1861 ts->continue_on_error = td->o.continue_on_error;
1862 ts->total_err_count += td->total_err_count;
1863 ts->first_error = td->first_error;
1865 if (!td->error && td->o.continue_on_error &&
1867 ts->error = td->first_error;
1868 ts->verror[sizeof(ts->verror) - 1] = '\0';
1869 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1870 } else if (td->error) {
1871 ts->error = td->error;
1872 ts->verror[sizeof(ts->verror) - 1] = '\0';
1873 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1877 ts->latency_depth = td->latency_qd;
1878 ts->latency_target = td->o.latency_target;
1879 ts->latency_percentile = td->o.latency_percentile;
1880 ts->latency_window = td->o.latency_window;
1882 ts->nr_block_infos = td->ts.nr_block_infos;
1883 for (k = 0; k < ts->nr_block_infos; k++)
1884 ts->block_infos[k] = td->ts.block_infos[k];
1886 sum_thread_stats(ts, &td->ts, idx == 1);
1889 ts->ss_state = td->ss.state;
1890 ts->ss_dur = td->ss.dur;
1891 ts->ss_head = td->ss.head;
1892 ts->ss_bw_data = td->ss.bw_data;
1893 ts->ss_iops_data = td->ss.iops_data;
1894 ts->ss_limit.u.f = td->ss.limit;
1895 ts->ss_slope.u.f = td->ss.slope;
1896 ts->ss_deviation.u.f = td->ss.deviation;
1897 ts->ss_criterion.u.f = td->ss.criterion;
1900 ts->ss_dur = ts->ss_state = 0;
1903 for (i = 0; i < nr_ts; i++) {
1904 unsigned long long bw;
1906 ts = &threadstats[i];
1907 if (ts->groupid == -1)
1909 rs = &runstats[ts->groupid];
1910 rs->kb_base = ts->kb_base;
1911 rs->unit_base = ts->unit_base;
1912 rs->sig_figs = ts->sig_figs;
1913 rs->unified_rw_rep += ts->unified_rw_rep;
1915 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1916 if (!ts->runtime[j])
1918 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1919 rs->min_run[j] = ts->runtime[j];
1920 if (ts->runtime[j] > rs->max_run[j])
1921 rs->max_run[j] = ts->runtime[j];
1925 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
1926 if (bw < rs->min_bw[j])
1928 if (bw > rs->max_bw[j])
1931 rs->iobytes[j] += ts->io_bytes[j];
1935 for (i = 0; i < groupid + 1; i++) {
1940 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1941 if (rs->max_run[ddir])
1942 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
1948 * don't overwrite last signal output
1950 if (output_format & FIO_OUTPUT_NORMAL)
1951 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1952 if (output_format & FIO_OUTPUT_JSON) {
1953 struct thread_data *global;
1956 unsigned long long ms_since_epoch;
1959 gettimeofday(&now, NULL);
1960 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1961 (unsigned long long)(now.tv_usec) / 1000;
1963 tv_sec = now.tv_sec;
1964 os_ctime_r(&tv_sec, time_buf, sizeof(time_buf));
1965 if (time_buf[strlen(time_buf) - 1] == '\n')
1966 time_buf[strlen(time_buf) - 1] = '\0';
1968 root = json_create_object();
1969 json_object_add_value_string(root, "fio version", fio_version_string);
1970 json_object_add_value_int(root, "timestamp", now.tv_sec);
1971 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1972 json_object_add_value_string(root, "time", time_buf);
1973 global = get_global_options();
1974 json_add_job_opts(root, "global options", &global->opt_list);
1975 array = json_create_array();
1976 json_object_add_value_array(root, "jobs", array);
1980 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1982 for (i = 0; i < nr_ts; i++) {
1983 ts = &threadstats[i];
1984 rs = &runstats[ts->groupid];
1987 fio_server_send_job_options(opt_lists[i], i);
1988 fio_server_send_ts(ts, rs);
1990 if (output_format & FIO_OUTPUT_TERSE)
1991 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1992 if (output_format & FIO_OUTPUT_JSON) {
1993 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1994 json_array_add_value_object(array, tmp);
1996 if (output_format & FIO_OUTPUT_NORMAL)
1997 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
2000 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
2001 /* disk util stats, if any */
2002 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
2004 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
2006 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
2007 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
2008 json_free_object(root);
2011 for (i = 0; i < groupid + 1; i++) {
2016 fio_server_send_gs(rs);
2017 else if (output_format & FIO_OUTPUT_NORMAL)
2018 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
2022 fio_server_send_du();
2023 else if (output_format & FIO_OUTPUT_NORMAL) {
2024 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
2025 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
2028 for (i = 0; i < FIO_OUTPUT_NR; i++) {
2029 struct buf_output *out = &output[i];
2031 log_info_buf(out->buf, out->buflen);
2032 buf_output_free(out);
2035 fio_idle_prof_cleanup();
2043 void __show_running_run_stats(void)
2045 struct thread_data *td;
2046 unsigned long long *rt;
2050 fio_sem_down(stat_sem);
2052 rt = malloc(thread_number * sizeof(unsigned long long));
2053 fio_gettime(&ts, NULL);
2055 for_each_td(td, i) {
2056 td->update_rusage = 1;
2057 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
2058 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
2059 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
2060 td->ts.total_run_time = mtime_since(&td->epoch, &ts);
2062 rt[i] = mtime_since(&td->start, &ts);
2063 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2064 td->ts.runtime[DDIR_READ] += rt[i];
2065 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2066 td->ts.runtime[DDIR_WRITE] += rt[i];
2067 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2068 td->ts.runtime[DDIR_TRIM] += rt[i];
2071 for_each_td(td, i) {
2072 if (td->runstate >= TD_EXITED)
2074 if (td->rusage_sem) {
2075 td->update_rusage = 1;
2076 fio_sem_down(td->rusage_sem);
2078 td->update_rusage = 0;
2083 for_each_td(td, i) {
2084 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2085 td->ts.runtime[DDIR_READ] -= rt[i];
2086 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2087 td->ts.runtime[DDIR_WRITE] -= rt[i];
2088 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2089 td->ts.runtime[DDIR_TRIM] -= rt[i];
2093 fio_sem_up(stat_sem);
2096 static bool status_interval_init;
2097 static struct timespec status_time;
2098 static bool status_file_disabled;
2100 #define FIO_STATUS_FILE "fio-dump-status"
2102 static int check_status_file(void)
2105 const char *temp_dir;
2106 char fio_status_file_path[PATH_MAX];
2108 if (status_file_disabled)
2111 temp_dir = getenv("TMPDIR");
2112 if (temp_dir == NULL) {
2113 temp_dir = getenv("TEMP");
2114 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
2117 if (temp_dir == NULL)
2120 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
2122 if (stat(fio_status_file_path, &sb))
2125 if (unlink(fio_status_file_path) < 0) {
2126 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
2128 log_err("fio: disabling status file updates\n");
2129 status_file_disabled = true;
2135 void check_for_running_stats(void)
2137 if (status_interval) {
2138 if (!status_interval_init) {
2139 fio_gettime(&status_time, NULL);
2140 status_interval_init = true;
2141 } else if (mtime_since_now(&status_time) >= status_interval) {
2142 show_running_run_stats();
2143 fio_gettime(&status_time, NULL);
2147 if (check_status_file()) {
2148 show_running_run_stats();
2153 static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
2158 if (data > is->max_val)
2160 if (data < is->min_val)
2163 delta = val - is->mean.u.f;
2165 is->mean.u.f += delta / (is->samples + 1.0);
2166 is->S.u.f += delta * (val - is->mean.u.f);
2173 * Return a struct io_logs, which is added to the tail of the log
2176 static struct io_logs *get_new_log(struct io_log *iolog)
2178 size_t new_size, new_samples;
2179 struct io_logs *cur_log;
2182 * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
2185 if (!iolog->cur_log_max)
2186 new_samples = DEF_LOG_ENTRIES;
2188 new_samples = iolog->cur_log_max * 2;
2189 if (new_samples > MAX_LOG_ENTRIES)
2190 new_samples = MAX_LOG_ENTRIES;
2193 new_size = new_samples * log_entry_sz(iolog);
2195 cur_log = smalloc(sizeof(*cur_log));
2197 INIT_FLIST_HEAD(&cur_log->list);
2198 cur_log->log = malloc(new_size);
2200 cur_log->nr_samples = 0;
2201 cur_log->max_samples = new_samples;
2202 flist_add_tail(&cur_log->list, &iolog->io_logs);
2203 iolog->cur_log_max = new_samples;
2213 * Add and return a new log chunk, or return current log if big enough
2215 static struct io_logs *regrow_log(struct io_log *iolog)
2217 struct io_logs *cur_log;
2220 if (!iolog || iolog->disabled)
2223 cur_log = iolog_cur_log(iolog);
2225 cur_log = get_new_log(iolog);
2230 if (cur_log->nr_samples < cur_log->max_samples)
2234 * No room for a new sample. If we're compressing on the fly, flush
2235 * out the current chunk
2237 if (iolog->log_gz) {
2238 if (iolog_cur_flush(iolog, cur_log)) {
2239 log_err("fio: failed flushing iolog! Will stop logging.\n");
2245 * Get a new log array, and add to our list
2247 cur_log = get_new_log(iolog);
2249 log_err("fio: failed extending iolog! Will stop logging.\n");
2253 if (!iolog->pending || !iolog->pending->nr_samples)
2257 * Flush pending items to new log
2259 for (i = 0; i < iolog->pending->nr_samples; i++) {
2260 struct io_sample *src, *dst;
2262 src = get_sample(iolog, iolog->pending, i);
2263 dst = get_sample(iolog, cur_log, i);
2264 memcpy(dst, src, log_entry_sz(iolog));
2266 cur_log->nr_samples = iolog->pending->nr_samples;
2268 iolog->pending->nr_samples = 0;
2272 iolog->disabled = true;
2276 void regrow_logs(struct thread_data *td)
2278 regrow_log(td->slat_log);
2279 regrow_log(td->clat_log);
2280 regrow_log(td->clat_hist_log);
2281 regrow_log(td->lat_log);
2282 regrow_log(td->bw_log);
2283 regrow_log(td->iops_log);
2284 td->flags &= ~TD_F_REGROW_LOGS;
2287 static struct io_logs *get_cur_log(struct io_log *iolog)
2289 struct io_logs *cur_log;
2291 cur_log = iolog_cur_log(iolog);
2293 cur_log = get_new_log(iolog);
2298 if (cur_log->nr_samples < cur_log->max_samples)
2302 * Out of space. If we're in IO offload mode, or we're not doing
2303 * per unit logging (hence logging happens outside of the IO thread
2304 * as well), add a new log chunk inline. If we're doing inline
2305 * submissions, flag 'td' as needing a log regrow and we'll take
2306 * care of it on the submission side.
2308 if ((iolog->td && iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD) ||
2309 !per_unit_log(iolog))
2310 return regrow_log(iolog);
2313 iolog->td->flags |= TD_F_REGROW_LOGS;
2315 assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2316 return iolog->pending;
2319 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2320 enum fio_ddir ddir, unsigned long long bs,
2321 unsigned long t, uint64_t offset)
2323 struct io_logs *cur_log;
2325 if (iolog->disabled)
2327 if (flist_empty(&iolog->io_logs))
2328 iolog->avg_last[ddir] = t;
2330 cur_log = get_cur_log(iolog);
2332 struct io_sample *s;
2334 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2337 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2338 io_sample_set_ddir(iolog, s, ddir);
2341 if (iolog->log_offset) {
2342 struct io_sample_offset *so = (void *) s;
2344 so->offset = offset;
2347 cur_log->nr_samples++;
2351 iolog->disabled = true;
2354 static inline void reset_io_stat(struct io_stat *ios)
2356 ios->max_val = ios->min_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;
2405 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2406 unsigned long elapsed, bool log_max)
2409 * Note an entry in the log. Use the mean from the logged samples,
2410 * making sure to properly round up. Only write a log entry if we
2411 * had actual samples done.
2413 if (iolog->avg_window[ddir].samples) {
2414 union io_sample_data data;
2417 data.val = iolog->avg_window[ddir].max_val;
2419 data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2421 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2424 reset_io_stat(&iolog->avg_window[ddir]);
2427 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2432 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2433 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2436 static unsigned long add_log_sample(struct thread_data *td,
2437 struct io_log *iolog,
2438 union io_sample_data data,
2439 enum fio_ddir ddir, unsigned long long bs,
2442 unsigned long elapsed, this_window;
2447 elapsed = mtime_since_now(&td->epoch);
2450 * If no time averaging, just add the log sample.
2452 if (!iolog->avg_msec) {
2453 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2458 * Add the sample. If the time period has passed, then
2459 * add that entry to the log and clear.
2461 add_stat_sample(&iolog->avg_window[ddir], data.val);
2464 * If period hasn't passed, adding the above sample is all we
2467 this_window = elapsed - iolog->avg_last[ddir];
2468 if (elapsed < iolog->avg_last[ddir])
2469 return iolog->avg_last[ddir] - elapsed;
2470 else if (this_window < iolog->avg_msec) {
2471 unsigned long diff = iolog->avg_msec - this_window;
2473 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2477 __add_stat_to_log(iolog, ddir, elapsed, td->o.log_max != 0);
2479 iolog->avg_last[ddir] = elapsed - (this_window - iolog->avg_msec);
2480 return iolog->avg_msec;
2483 void finalize_logs(struct thread_data *td, bool unit_logs)
2485 unsigned long elapsed;
2487 elapsed = mtime_since_now(&td->epoch);
2489 if (td->clat_log && unit_logs)
2490 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2491 if (td->slat_log && unit_logs)
2492 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2493 if (td->lat_log && unit_logs)
2494 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2495 if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2496 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2497 if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2498 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2501 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned long long bs)
2503 struct io_log *iolog;
2508 iolog = agg_io_log[ddir];
2509 __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2512 void add_sync_clat_sample(struct thread_stat *ts, unsigned long long nsec)
2514 unsigned int idx = plat_val_to_idx(nsec);
2515 assert(idx < FIO_IO_U_PLAT_NR);
2517 ts->io_u_sync_plat[idx]++;
2518 add_stat_sample(&ts->sync_stat, nsec);
2521 static void add_clat_percentile_sample(struct thread_stat *ts,
2522 unsigned long long nsec, enum fio_ddir ddir)
2524 unsigned int idx = plat_val_to_idx(nsec);
2525 assert(idx < FIO_IO_U_PLAT_NR);
2527 ts->io_u_plat[ddir][idx]++;
2530 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2531 unsigned long long nsec, unsigned long long bs,
2534 const bool needs_lock = td_async_processing(td);
2535 unsigned long elapsed, this_window;
2536 struct thread_stat *ts = &td->ts;
2537 struct io_log *iolog = td->clat_hist_log;
2542 add_stat_sample(&ts->clat_stat[ddir], nsec);
2545 add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
2548 if (ts->clat_percentiles)
2549 add_clat_percentile_sample(ts, nsec, ddir);
2551 if (iolog && iolog->hist_msec) {
2552 struct io_hist *hw = &iolog->hist_window[ddir];
2555 elapsed = mtime_since_now(&td->epoch);
2557 hw->hist_last = elapsed;
2558 this_window = elapsed - hw->hist_last;
2560 if (this_window >= iolog->hist_msec) {
2561 uint64_t *io_u_plat;
2562 struct io_u_plat_entry *dst;
2565 * Make a byte-for-byte copy of the latency histogram
2566 * stored in td->ts.io_u_plat[ddir], recording it in a
2567 * log sample. Note that the matching call to free() is
2568 * located in iolog.c after printing this sample to the
2571 io_u_plat = (uint64_t *) td->ts.io_u_plat[ddir];
2572 dst = malloc(sizeof(struct io_u_plat_entry));
2573 memcpy(&(dst->io_u_plat), io_u_plat,
2574 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2575 flist_add(&dst->list, &hw->list);
2576 __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2580 * Update the last time we recorded as being now, minus
2581 * any drift in time we encountered before actually
2582 * making the record.
2584 hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2590 __td_io_u_unlock(td);
2593 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2594 unsigned long usec, unsigned long long bs, uint64_t offset)
2596 const bool needs_lock = td_async_processing(td);
2597 struct thread_stat *ts = &td->ts;
2605 add_stat_sample(&ts->slat_stat[ddir], usec);
2608 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2611 __td_io_u_unlock(td);
2614 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2615 unsigned long long nsec, unsigned long long bs,
2618 const bool needs_lock = td_async_processing(td);
2619 struct thread_stat *ts = &td->ts;
2627 add_stat_sample(&ts->lat_stat[ddir], nsec);
2630 add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
2633 if (ts->lat_percentiles)
2634 add_clat_percentile_sample(ts, nsec, ddir);
2637 __td_io_u_unlock(td);
2640 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2641 unsigned int bytes, unsigned long long spent)
2643 const bool needs_lock = td_async_processing(td);
2644 struct thread_stat *ts = &td->ts;
2648 rate = (unsigned long) (bytes * 1000000ULL / spent);
2655 add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2658 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2659 bytes, io_u->offset);
2661 td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2664 __td_io_u_unlock(td);
2667 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
2668 struct timespec *t, unsigned int avg_time,
2669 uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
2670 struct io_stat *stat, struct io_log *log,
2673 const bool needs_lock = td_async_processing(td);
2674 unsigned long spent, rate;
2676 unsigned long next, next_log;
2678 next_log = avg_time;
2680 spent = mtime_since(parent_tv, t);
2681 if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
2682 return avg_time - spent;
2688 * Compute both read and write rates for the interval.
2690 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2693 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
2695 continue; /* No entries for interval */
2699 rate = delta * 1000 / spent / 1024; /* KiB/s */
2701 rate = (delta * 1000) / spent;
2705 add_stat_sample(&stat[ddir], rate);
2708 unsigned long long bs = 0;
2710 if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2711 bs = td->o.min_bs[ddir];
2713 next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0);
2714 next_log = min(next_log, next);
2717 stat_io_bytes[ddir] = this_io_bytes[ddir];
2720 timespec_add_msec(parent_tv, avg_time);
2723 __td_io_u_unlock(td);
2725 if (spent <= avg_time)
2728 next = avg_time - (1 + spent - avg_time);
2730 return min(next, next_log);
2733 static int add_bw_samples(struct thread_data *td, struct timespec *t)
2735 return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
2736 td->this_io_bytes, td->stat_io_bytes,
2737 td->ts.bw_stat, td->bw_log, true);
2740 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2743 const bool needs_lock = td_async_processing(td);
2744 struct thread_stat *ts = &td->ts;
2749 add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2752 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2753 bytes, io_u->offset);
2755 td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2758 __td_io_u_unlock(td);
2761 static int add_iops_samples(struct thread_data *td, struct timespec *t)
2763 return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
2764 td->this_io_blocks, td->stat_io_blocks,
2765 td->ts.iops_stat, td->iops_log, false);
2769 * Returns msecs to next event
2771 int calc_log_samples(void)
2773 struct thread_data *td;
2774 unsigned int next = ~0U, tmp;
2775 struct timespec now;
2778 fio_gettime(&now, NULL);
2780 for_each_td(td, i) {
2783 if (in_ramp_time(td) ||
2784 !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2785 next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2789 (td->bw_log && !per_unit_log(td->bw_log))) {
2790 tmp = add_bw_samples(td, &now);
2794 if (!td->iops_log ||
2795 (td->iops_log && !per_unit_log(td->iops_log))) {
2796 tmp = add_iops_samples(td, &now);
2802 return next == ~0U ? 0 : next;
2805 void stat_init(void)
2807 stat_sem = fio_sem_init(FIO_SEM_UNLOCKED);
2810 void stat_exit(void)
2813 * When we have the mutex, we know out-of-band access to it
2816 fio_sem_down(stat_sem);
2817 fio_sem_remove(stat_sem);
2821 * Called from signal handler. Wake up status thread.
2823 void show_running_run_stats(void)
2828 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2830 /* Ignore io_u's which span multiple blocks--they will just get
2831 * inaccurate counts. */
2832 int idx = (io_u->offset - io_u->file->file_offset)
2833 / td->o.bs[DDIR_TRIM];
2834 uint32_t *info = &td->ts.block_infos[idx];
2835 assert(idx < td->ts.nr_block_infos);