12 #include "lib/ieee754.h"
14 #include "lib/getrusage.h"
17 #include "lib/output_buffer.h"
18 #include "helper_thread.h"
21 #define LOG_MSEC_SLACK 10
23 struct fio_mutex *stat_mutex;
25 void clear_rusage_stat(struct thread_data *td)
27 struct thread_stat *ts = &td->ts;
29 fio_getrusage(&td->ru_start);
30 ts->usr_time = ts->sys_time = 0;
32 ts->minf = ts->majf = 0;
35 void update_rusage_stat(struct thread_data *td)
37 struct thread_stat *ts = &td->ts;
39 fio_getrusage(&td->ru_end);
40 ts->usr_time += mtime_since_tv(&td->ru_start.ru_utime,
41 &td->ru_end.ru_utime);
42 ts->sys_time += mtime_since_tv(&td->ru_start.ru_stime,
43 &td->ru_end.ru_stime);
44 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
45 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
46 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
47 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
49 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
53 * Given a latency, return the index of the corresponding bucket in
54 * the structure tracking percentiles.
56 * (1) find the group (and error bits) that the value (latency)
57 * belongs to by looking at its MSB. (2) find the bucket number in the
58 * group by looking at the index bits.
61 static unsigned int plat_val_to_idx(unsigned long long val)
63 unsigned int msb, error_bits, base, offset, idx;
65 /* Find MSB starting from bit 0 */
69 msb = (sizeof(val)*8) - __builtin_clzll(val) - 1;
72 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
73 * all bits of the sample as index
75 if (msb <= FIO_IO_U_PLAT_BITS)
78 /* Compute the number of error bits to discard*/
79 error_bits = msb - FIO_IO_U_PLAT_BITS;
81 /* Compute the number of buckets before the group */
82 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
85 * Discard the error bits and apply the mask to find the
86 * index for the buckets in the group
88 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
90 /* Make sure the index does not exceed (array size - 1) */
91 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
92 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
98 * Convert the given index of the bucket array to the value
99 * represented by the bucket
101 static unsigned long long plat_idx_to_val(unsigned int idx)
103 unsigned int error_bits;
104 unsigned long long k, base;
106 assert(idx < FIO_IO_U_PLAT_NR);
108 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
109 * all bits of the sample as index */
110 if (idx < (FIO_IO_U_PLAT_VAL << 1))
113 /* Find the group and compute the minimum value of that group */
114 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
115 base = ((unsigned long long) 1) << (error_bits + FIO_IO_U_PLAT_BITS);
117 /* Find its bucket number of the group */
118 k = idx % FIO_IO_U_PLAT_VAL;
120 /* Return the mean of the range of the bucket */
121 return base + ((k + 0.5) * (1 << error_bits));
124 static int double_cmp(const void *a, const void *b)
126 const fio_fp64_t fa = *(const fio_fp64_t *) a;
127 const fio_fp64_t fb = *(const fio_fp64_t *) b;
132 else if (fa.u.f < fb.u.f)
138 unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
139 fio_fp64_t *plist, unsigned long long **output,
140 unsigned long long *maxv, unsigned long long *minv)
142 unsigned long sum = 0;
143 unsigned int len, i, j = 0;
144 unsigned int oval_len = 0;
145 unsigned long long *ovals = NULL;
152 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
159 * Sort the percentile list. Note that it may already be sorted if
160 * we are using the default values, but since it's a short list this
161 * isn't a worry. Also note that this does not work for NaN values.
164 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
167 * Calculate bucket values, note down max and min values
170 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
172 while (sum >= (plist[j].u.f / 100.0 * nr)) {
173 assert(plist[j].u.f <= 100.0);
177 ovals = realloc(ovals, oval_len * sizeof(*ovals));
180 ovals[j] = plat_idx_to_val(i);
181 if (ovals[j] < *minv)
183 if (ovals[j] > *maxv)
186 is_last = (j == len - 1);
199 * Find and display the p-th percentile of clat
201 static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
202 fio_fp64_t *plist, unsigned int precision,
203 struct buf_output *out)
205 unsigned int divisor, len, i, j = 0;
206 unsigned long long minv, maxv;
207 unsigned long long *ovals;
208 int is_last, 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, " clat percentiles (msec):\n |");
223 } else if (minv > 2000 && maxv > 99999) {
226 log_buf(out, " clat percentiles (usec):\n |");
230 log_buf(out, " clat percentiles (nsec):\n |");
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);
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], 4, 1, i2p, N2S_BYTE);
301 ioalt = num2str(rs->iobytes[i], 4, 1, !i2p, N2S_BYTE);
302 agg = num2str(rs->agg[i], 4, 1, i2p, rs->unit_base);
303 aggalt = num2str(rs->agg[i], 4, 1, !i2p, rs->unit_base);
304 min = num2str(rs->min_bw[i], 4, 1, i2p, rs->unit_base);
305 minalt = num2str(rs->min_bw[i], 4, 1, !i2p, rs->unit_base);
306 max = num2str(rs->max_bw[i], 4, 1, i2p, rs->unit_base);
307 maxalt = num2str(rs->max_bw[i], 4, 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(unsigned int *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 unsigned int *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 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 static 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)
420 const char *str[] = { " read", "write", " trim" };
422 unsigned long long min, max, bw, iops;
424 char *io_p, *bw_p, *bw_p_alt, *iops_p;
427 assert(ddir_rw(ddir));
429 if (!ts->runtime[ddir])
432 i2p = is_power_of_2(rs->kb_base);
433 runt = ts->runtime[ddir];
435 bw = (1000 * ts->io_bytes[ddir]) / runt;
436 io_p = num2str(ts->io_bytes[ddir], 4, 1, i2p, N2S_BYTE);
437 bw_p = num2str(bw, 4, 1, i2p, ts->unit_base);
438 bw_p_alt = num2str(bw, 4, 1, !i2p, ts->unit_base);
440 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
441 iops_p = num2str(iops, 4, 1, 0, N2S_NONE);
443 log_buf(out, " %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)\n",
444 rs->unified_rw_rep ? "mixed" : str[ddir],
445 iops_p, bw_p, bw_p_alt, io_p,
446 (unsigned long long) ts->runtime[ddir]);
453 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
454 display_lat("slat", min, max, mean, dev, out);
455 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
456 display_lat("clat", min, max, mean, dev, out);
457 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
458 display_lat(" lat", min, max, mean, dev, out);
460 if (ts->clat_percentiles) {
461 show_clat_percentiles(ts->io_u_plat[ddir],
462 ts->clat_stat[ddir].samples,
464 ts->percentile_precision, out);
466 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
467 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
470 if ((rs->unit_base == 1) && i2p)
472 else if (rs->unit_base == 1)
480 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
481 if (p_of_agg > 100.0)
485 if (rs->unit_base == 1) {
492 if (mean > fkb_base * fkb_base) {
497 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
500 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
501 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
502 bw_str, min, max, p_of_agg, mean, dev,
503 (&ts->bw_stat[ddir])->samples);
505 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
506 log_buf(out, " iops : min=%5llu, max=%5llu, "
507 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
508 min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
512 static int show_lat(double *io_u_lat, int nr, const char **ranges,
513 const char *msg, struct buf_output *out)
515 int new_line = 1, i, line = 0, shown = 0;
517 for (i = 0; i < nr; i++) {
518 if (io_u_lat[i] <= 0.0)
524 log_buf(out, " lat (%s) : ", msg);
530 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
542 static void show_lat_n(double *io_u_lat_n, struct buf_output *out)
544 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
545 "250=", "500=", "750=", "1000=", };
547 show_lat(io_u_lat_n, FIO_IO_U_LAT_N_NR, ranges, "nsec", out);
550 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
552 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
553 "250=", "500=", "750=", "1000=", };
555 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
558 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
560 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
561 "250=", "500=", "750=", "1000=", "2000=",
564 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
567 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
569 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
570 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
571 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
573 stat_calc_lat_n(ts, io_u_lat_n);
574 stat_calc_lat_u(ts, io_u_lat_u);
575 stat_calc_lat_m(ts, io_u_lat_m);
577 show_lat_n(io_u_lat_n, out);
578 show_lat_u(io_u_lat_u, out);
579 show_lat_m(io_u_lat_m, out);
582 static int block_state_category(int block_state)
584 switch (block_state) {
585 case BLOCK_STATE_UNINIT:
587 case BLOCK_STATE_TRIMMED:
588 case BLOCK_STATE_WRITTEN:
590 case BLOCK_STATE_WRITE_FAILURE:
591 case BLOCK_STATE_TRIM_FAILURE:
594 /* Silence compile warning on some BSDs and have a return */
600 static int compare_block_infos(const void *bs1, const void *bs2)
602 uint32_t block1 = *(uint32_t *)bs1;
603 uint32_t block2 = *(uint32_t *)bs2;
604 int state1 = BLOCK_INFO_STATE(block1);
605 int state2 = BLOCK_INFO_STATE(block2);
606 int bscat1 = block_state_category(state1);
607 int bscat2 = block_state_category(state2);
608 int cycles1 = BLOCK_INFO_TRIMS(block1);
609 int cycles2 = BLOCK_INFO_TRIMS(block2);
616 if (cycles1 < cycles2)
618 if (cycles1 > cycles2)
626 assert(block1 == block2);
630 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
631 fio_fp64_t *plist, unsigned int **percentiles,
637 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
639 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
646 * Sort the percentile list. Note that it may already be sorted if
647 * we are using the default values, but since it's a short list this
648 * isn't a worry. Also note that this does not work for NaN values.
651 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
654 /* Start only after the uninit entries end */
656 nr_uninit < nr_block_infos
657 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
661 if (nr_uninit == nr_block_infos)
664 *percentiles = calloc(len, sizeof(**percentiles));
666 for (i = 0; i < len; i++) {
667 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
669 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
672 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
673 for (i = 0; i < nr_block_infos; i++)
674 types[BLOCK_INFO_STATE(block_infos[i])]++;
679 static const char *block_state_names[] = {
680 [BLOCK_STATE_UNINIT] = "unwritten",
681 [BLOCK_STATE_TRIMMED] = "trimmed",
682 [BLOCK_STATE_WRITTEN] = "written",
683 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
684 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
687 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
688 fio_fp64_t *plist, struct buf_output *out)
691 unsigned int *percentiles = NULL;
692 unsigned int block_state_counts[BLOCK_STATE_COUNT];
694 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
695 &percentiles, block_state_counts);
697 log_buf(out, " block lifetime percentiles :\n |");
699 for (i = 0; i < len; i++) {
700 uint32_t block_info = percentiles[i];
701 #define LINE_LENGTH 75
702 char str[LINE_LENGTH];
703 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
704 plist[i].u.f, block_info,
705 i == len - 1 ? '\n' : ',');
706 assert(strln < LINE_LENGTH);
707 if (pos + strln > LINE_LENGTH) {
709 log_buf(out, "\n |");
711 log_buf(out, "%s", str);
718 log_buf(out, " states :");
719 for (i = 0; i < BLOCK_STATE_COUNT; i++)
720 log_buf(out, " %s=%u%c",
721 block_state_names[i], block_state_counts[i],
722 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
725 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
727 char *p1, *p1alt, *p2;
728 unsigned long long bw_mean, iops_mean;
729 const int i2p = is_power_of_2(ts->kb_base);
734 bw_mean = steadystate_bw_mean(ts);
735 iops_mean = steadystate_iops_mean(ts);
737 p1 = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, i2p, ts->unit_base);
738 p1alt = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, !i2p, ts->unit_base);
739 p2 = num2str(iops_mean, 4, 1, 0, N2S_NONE);
741 log_buf(out, " steadystate : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
742 ts->ss_state & __FIO_SS_ATTAINED ? "yes" : "no",
744 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
745 ts->ss_state & __FIO_SS_SLOPE ? " slope": " mean dev",
746 ts->ss_criterion.u.f,
747 ts->ss_state & __FIO_SS_PCT ? "%" : "");
754 static void show_thread_status_normal(struct thread_stat *ts,
755 struct group_run_stats *rs,
756 struct buf_output *out)
758 double usr_cpu, sys_cpu;
759 unsigned long runtime;
760 double io_u_dist[FIO_IO_U_MAP_NR];
764 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
767 memset(time_buf, 0, sizeof(time_buf));
770 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
773 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
774 ts->name, ts->groupid, ts->members,
775 ts->error, (int) ts->pid, time_buf);
777 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
778 ts->name, ts->groupid, ts->members,
779 ts->error, ts->verror, (int) ts->pid,
783 if (strlen(ts->description))
784 log_buf(out, " Description : [%s]\n", ts->description);
786 if (ts->io_bytes[DDIR_READ])
787 show_ddir_status(rs, ts, DDIR_READ, out);
788 if (ts->io_bytes[DDIR_WRITE])
789 show_ddir_status(rs, ts, DDIR_WRITE, out);
790 if (ts->io_bytes[DDIR_TRIM])
791 show_ddir_status(rs, ts, DDIR_TRIM, out);
793 show_latencies(ts, out);
795 runtime = ts->total_run_time;
797 double runt = (double) runtime;
799 usr_cpu = (double) ts->usr_time * 100 / runt;
800 sys_cpu = (double) ts->sys_time * 100 / runt;
806 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
807 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
808 (unsigned long long) ts->ctx,
809 (unsigned long long) ts->majf,
810 (unsigned long long) ts->minf);
812 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
813 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
814 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
815 io_u_dist[1], io_u_dist[2],
816 io_u_dist[3], io_u_dist[4],
817 io_u_dist[5], io_u_dist[6]);
819 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
820 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
821 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
822 io_u_dist[1], io_u_dist[2],
823 io_u_dist[3], io_u_dist[4],
824 io_u_dist[5], io_u_dist[6]);
825 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
826 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
827 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
828 io_u_dist[1], io_u_dist[2],
829 io_u_dist[3], io_u_dist[4],
830 io_u_dist[5], io_u_dist[6]);
831 log_buf(out, " issued rwt: total=%llu,%llu,%llu,"
832 " short=%llu,%llu,%llu,"
833 " dropped=%llu,%llu,%llu\n",
834 (unsigned long long) ts->total_io_u[0],
835 (unsigned long long) ts->total_io_u[1],
836 (unsigned long long) ts->total_io_u[2],
837 (unsigned long long) ts->short_io_u[0],
838 (unsigned long long) ts->short_io_u[1],
839 (unsigned long long) ts->short_io_u[2],
840 (unsigned long long) ts->drop_io_u[0],
841 (unsigned long long) ts->drop_io_u[1],
842 (unsigned long long) ts->drop_io_u[2]);
843 if (ts->continue_on_error) {
844 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
845 (unsigned long long)ts->total_err_count,
847 strerror(ts->first_error));
849 if (ts->latency_depth) {
850 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
851 (unsigned long long)ts->latency_target,
852 (unsigned long long)ts->latency_window,
853 ts->latency_percentile.u.f,
857 if (ts->nr_block_infos)
858 show_block_infos(ts->nr_block_infos, ts->block_infos,
859 ts->percentile_list, out);
862 show_ss_normal(ts, out);
865 static void show_ddir_status_terse(struct thread_stat *ts,
866 struct group_run_stats *rs, int ddir,
867 int ver, struct buf_output *out)
869 unsigned long long min, max, minv, maxv, bw, iops;
870 unsigned long long *ovals = NULL;
875 assert(ddir_rw(ddir));
878 if (ts->runtime[ddir]) {
879 uint64_t runt = ts->runtime[ddir];
881 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
882 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
885 log_buf(out, ";%llu;%llu;%llu;%llu",
886 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
887 (unsigned long long) ts->runtime[ddir]);
889 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
890 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
892 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
894 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
895 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
897 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
899 if (ts->clat_percentiles) {
900 len = calc_clat_percentiles(ts->io_u_plat[ddir],
901 ts->clat_stat[ddir].samples,
902 ts->percentile_list, &ovals, &maxv,
907 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
909 log_buf(out, ";0%%=0");
912 log_buf(out, ";%f%%=%llu", ts->percentile_list[i].u.f, ovals[i]/1000);
915 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
916 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
918 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
923 bw_stat = calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev);
925 double p_of_agg = 100.0;
928 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
929 if (p_of_agg > 100.0)
933 log_buf(out, ";%llu;%llu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
935 log_buf(out, ";%llu;%llu;%f%%;%f;%f", 0ULL, 0ULL, 0.0, 0.0, 0.0);
939 log_buf(out, ";%" PRIu64, (&ts->bw_stat[ddir])->samples);
941 log_buf(out, ";%lu", 0UL);
943 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev))
944 log_buf(out, ";%llu;%llu;%f;%f;%" PRIu64, min, max,
945 mean, dev, (&ts->iops_stat[ddir])->samples);
947 log_buf(out, ";%llu;%llu;%f;%f;%lu", 0ULL, 0ULL, 0.0, 0.0, 0UL);
951 static void add_ddir_status_json(struct thread_stat *ts,
952 struct group_run_stats *rs, int ddir, struct json_object *parent)
954 unsigned long long min, max, minv, maxv;
955 unsigned long long bw;
956 unsigned long long *ovals = NULL;
957 double mean, dev, iops;
960 const char *ddirname[] = {"read", "write", "trim"};
961 struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
963 double p_of_agg = 100.0;
965 assert(ddir_rw(ddir));
967 if (ts->unified_rw_rep && ddir != DDIR_READ)
970 dir_object = json_create_object();
971 json_object_add_value_object(parent,
972 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
976 if (ts->runtime[ddir]) {
977 uint64_t runt = ts->runtime[ddir];
979 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
980 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
983 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
984 json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
985 json_object_add_value_int(dir_object, "bw", bw);
986 json_object_add_value_float(dir_object, "iops", iops);
987 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
988 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
989 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
990 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
992 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
996 tmp_object = json_create_object();
997 json_object_add_value_object(dir_object, "slat_ns", tmp_object);
998 json_object_add_value_int(tmp_object, "min", min);
999 json_object_add_value_int(tmp_object, "max", max);
1000 json_object_add_value_float(tmp_object, "mean", mean);
1001 json_object_add_value_float(tmp_object, "stddev", dev);
1003 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
1007 tmp_object = json_create_object();
1008 json_object_add_value_object(dir_object, "clat_ns", tmp_object);
1009 json_object_add_value_int(tmp_object, "min", min);
1010 json_object_add_value_int(tmp_object, "max", max);
1011 json_object_add_value_float(tmp_object, "mean", mean);
1012 json_object_add_value_float(tmp_object, "stddev", dev);
1014 if (ts->clat_percentiles) {
1015 len = calc_clat_percentiles(ts->io_u_plat[ddir],
1016 ts->clat_stat[ddir].samples,
1017 ts->percentile_list, &ovals, &maxv,
1022 percentile_object = json_create_object();
1023 json_object_add_value_object(tmp_object, "percentile", percentile_object);
1024 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1026 json_object_add_value_int(percentile_object, "0.00", 0);
1029 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
1030 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
1033 if (output_format & FIO_OUTPUT_JSON_PLUS) {
1034 clat_bins_object = json_create_object();
1035 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1036 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
1037 if (ts->io_u_plat[ddir][i]) {
1038 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1039 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
1044 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
1048 tmp_object = json_create_object();
1049 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1050 json_object_add_value_int(tmp_object, "min", min);
1051 json_object_add_value_int(tmp_object, "max", max);
1052 json_object_add_value_float(tmp_object, "mean", mean);
1053 json_object_add_value_float(tmp_object, "stddev", dev);
1057 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
1058 if (rs->agg[ddir]) {
1059 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
1060 if (p_of_agg > 100.0)
1065 p_of_agg = mean = dev = 0.0;
1067 json_object_add_value_int(dir_object, "bw_min", min);
1068 json_object_add_value_int(dir_object, "bw_max", max);
1069 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1070 json_object_add_value_float(dir_object, "bw_mean", mean);
1071 json_object_add_value_float(dir_object, "bw_dev", dev);
1072 json_object_add_value_int(dir_object, "bw_samples",
1073 (&ts->bw_stat[ddir])->samples);
1075 if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
1079 json_object_add_value_int(dir_object, "iops_min", min);
1080 json_object_add_value_int(dir_object, "iops_max", max);
1081 json_object_add_value_float(dir_object, "iops_mean", mean);
1082 json_object_add_value_float(dir_object, "iops_stddev", dev);
1083 json_object_add_value_int(dir_object, "iops_samples",
1084 (&ts->iops_stat[ddir])->samples);
1087 static void show_thread_status_terse_all(struct thread_stat *ts,
1088 struct group_run_stats *rs, int ver,
1089 struct buf_output *out)
1091 double io_u_dist[FIO_IO_U_MAP_NR];
1092 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1093 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1094 double usr_cpu, sys_cpu;
1099 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1101 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1102 ts->name, ts->groupid, ts->error);
1104 /* Log Read Status */
1105 show_ddir_status_terse(ts, rs, DDIR_READ, ver, out);
1106 /* Log Write Status */
1107 show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
1108 /* Log Trim Status */
1109 if (ver == 2 || ver == 4 || ver == 5)
1110 show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
1113 if (ts->total_run_time) {
1114 double runt = (double) ts->total_run_time;
1116 usr_cpu = (double) ts->usr_time * 100 / runt;
1117 sys_cpu = (double) ts->sys_time * 100 / runt;
1123 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1124 (unsigned long long) ts->ctx,
1125 (unsigned long long) ts->majf,
1126 (unsigned long long) ts->minf);
1128 /* Calc % distribution of IO depths, usecond, msecond latency */
1129 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1130 stat_calc_lat_nu(ts, io_u_lat_u);
1131 stat_calc_lat_m(ts, io_u_lat_m);
1133 /* Only show fixed 7 I/O depth levels*/
1134 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1135 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1136 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1138 /* Microsecond latency */
1139 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1140 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1141 /* Millisecond latency */
1142 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1143 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1145 /* disk util stats, if any */
1147 show_disk_util(1, NULL, out);
1149 /* Additional output if continue_on_error set - default off*/
1150 if (ts->continue_on_error)
1151 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1155 /* Additional output if description is set */
1156 if (strlen(ts->description))
1157 log_buf(out, ";%s", ts->description);
1162 static void json_add_job_opts(struct json_object *root, const char *name,
1163 struct flist_head *opt_list, bool num_jobs)
1165 struct json_object *dir_object;
1166 struct flist_head *entry;
1167 struct print_option *p;
1169 if (flist_empty(opt_list))
1172 dir_object = json_create_object();
1173 json_object_add_value_object(root, name, dir_object);
1175 flist_for_each(entry, opt_list) {
1176 const char *pos = "";
1178 p = flist_entry(entry, struct print_option, list);
1179 if (!num_jobs && !strcmp(p->name, "numjobs"))
1183 json_object_add_value_string(dir_object, p->name, pos);
1187 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1188 struct group_run_stats *rs,
1189 struct flist_head *opt_list)
1191 struct json_object *root, *tmp;
1192 struct jobs_eta *je;
1193 double io_u_dist[FIO_IO_U_MAP_NR];
1194 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
1195 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1196 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1197 double usr_cpu, sys_cpu;
1201 root = json_create_object();
1202 json_object_add_value_string(root, "jobname", ts->name);
1203 json_object_add_value_int(root, "groupid", ts->groupid);
1204 json_object_add_value_int(root, "error", ts->error);
1207 je = get_jobs_eta(true, &size);
1209 json_object_add_value_int(root, "eta", je->eta_sec);
1210 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1214 json_add_job_opts(root, "job options", opt_list, true);
1216 add_ddir_status_json(ts, rs, DDIR_READ, root);
1217 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1218 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1221 if (ts->total_run_time) {
1222 double runt = (double) ts->total_run_time;
1224 usr_cpu = (double) ts->usr_time * 100 / runt;
1225 sys_cpu = (double) ts->sys_time * 100 / runt;
1230 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1231 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1232 json_object_add_value_int(root, "ctx", ts->ctx);
1233 json_object_add_value_int(root, "majf", ts->majf);
1234 json_object_add_value_int(root, "minf", ts->minf);
1237 /* Calc % distribution of IO depths, usecond, msecond latency */
1238 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1239 stat_calc_lat_n(ts, io_u_lat_n);
1240 stat_calc_lat_u(ts, io_u_lat_u);
1241 stat_calc_lat_m(ts, io_u_lat_m);
1243 tmp = json_create_object();
1244 json_object_add_value_object(root, "iodepth_level", tmp);
1245 /* Only show fixed 7 I/O depth levels*/
1246 for (i = 0; i < 7; i++) {
1249 snprintf(name, 20, "%d", 1 << i);
1251 snprintf(name, 20, ">=%d", 1 << i);
1252 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1255 /* Nanosecond latency */
1256 tmp = json_create_object();
1257 json_object_add_value_object(root, "latency_ns", tmp);
1258 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++) {
1259 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1260 "250", "500", "750", "1000", };
1261 json_object_add_value_float(tmp, ranges[i], io_u_lat_n[i]);
1263 /* Microsecond latency */
1264 tmp = json_create_object();
1265 json_object_add_value_object(root, "latency_us", tmp);
1266 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1267 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1268 "250", "500", "750", "1000", };
1269 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1271 /* Millisecond latency */
1272 tmp = json_create_object();
1273 json_object_add_value_object(root, "latency_ms", tmp);
1274 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1275 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1276 "250", "500", "750", "1000", "2000",
1278 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1281 /* Additional output if continue_on_error set - default off*/
1282 if (ts->continue_on_error) {
1283 json_object_add_value_int(root, "total_err", ts->total_err_count);
1284 json_object_add_value_int(root, "first_error", ts->first_error);
1287 if (ts->latency_depth) {
1288 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1289 json_object_add_value_int(root, "latency_target", ts->latency_target);
1290 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1291 json_object_add_value_int(root, "latency_window", ts->latency_window);
1294 /* Additional output if description is set */
1295 if (strlen(ts->description))
1296 json_object_add_value_string(root, "desc", ts->description);
1298 if (ts->nr_block_infos) {
1299 /* Block error histogram and types */
1301 unsigned int *percentiles = NULL;
1302 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1304 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1305 ts->percentile_list,
1306 &percentiles, block_state_counts);
1309 struct json_object *block, *percentile_object, *states;
1311 block = json_create_object();
1312 json_object_add_value_object(root, "block", block);
1314 percentile_object = json_create_object();
1315 json_object_add_value_object(block, "percentiles",
1317 for (i = 0; i < len; i++) {
1319 snprintf(buf, sizeof(buf), "%f",
1320 ts->percentile_list[i].u.f);
1321 json_object_add_value_int(percentile_object,
1326 states = json_create_object();
1327 json_object_add_value_object(block, "states", states);
1328 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1329 json_object_add_value_int(states,
1330 block_state_names[state],
1331 block_state_counts[state]);
1338 struct json_object *data;
1339 struct json_array *iops, *bw;
1343 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1344 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
1345 ts->ss_state & __FIO_SS_SLOPE ? "_slope" : "",
1346 (float) ts->ss_limit.u.f,
1347 ts->ss_state & __FIO_SS_PCT ? "%" : "");
1349 tmp = json_create_object();
1350 json_object_add_value_object(root, "steadystate", tmp);
1351 json_object_add_value_string(tmp, "ss", ss_buf);
1352 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1353 json_object_add_value_int(tmp, "attained", (ts->ss_state & __FIO_SS_ATTAINED) > 0);
1355 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1356 ts->ss_state & __FIO_SS_PCT ? "%" : "");
1357 json_object_add_value_string(tmp, "criterion", ss_buf);
1358 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1359 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1361 data = json_create_object();
1362 json_object_add_value_object(tmp, "data", data);
1363 bw = json_create_array();
1364 iops = json_create_array();
1367 ** if ss was attained or the buffer is not full,
1368 ** ss->head points to the first element in the list.
1369 ** otherwise it actually points to the second element
1372 if ((ts->ss_state & __FIO_SS_ATTAINED) || !(ts->ss_state & __FIO_SS_BUFFER_FULL))
1375 j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1376 for (i = 0; i < ts->ss_dur; i++) {
1377 k = (j + i) % ts->ss_dur;
1378 json_array_add_value_int(bw, ts->ss_bw_data[k]);
1379 json_array_add_value_int(iops, ts->ss_iops_data[k]);
1381 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1382 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1383 json_object_add_value_array(data, "iops", iops);
1384 json_object_add_value_array(data, "bw", bw);
1390 static void show_thread_status_terse(struct thread_stat *ts,
1391 struct group_run_stats *rs,
1392 struct buf_output *out)
1394 if (terse_version >= 2 && terse_version <= 5)
1395 show_thread_status_terse_all(ts, rs, terse_version, out);
1397 log_err("fio: bad terse version!? %d\n", terse_version);
1400 struct json_object *show_thread_status(struct thread_stat *ts,
1401 struct group_run_stats *rs,
1402 struct flist_head *opt_list,
1403 struct buf_output *out)
1405 struct json_object *ret = NULL;
1407 if (output_format & FIO_OUTPUT_TERSE)
1408 show_thread_status_terse(ts, rs, out);
1409 if (output_format & FIO_OUTPUT_JSON)
1410 ret = show_thread_status_json(ts, rs, opt_list);
1411 if (output_format & FIO_OUTPUT_NORMAL)
1412 show_thread_status_normal(ts, rs, out);
1417 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1421 if (src->samples == 0)
1424 dst->min_val = min(dst->min_val, src->min_val);
1425 dst->max_val = max(dst->max_val, src->max_val);
1428 * Compute new mean and S after the merge
1429 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1430 * #Parallel_algorithm>
1433 mean = src->mean.u.f;
1436 double delta = src->mean.u.f - dst->mean.u.f;
1438 mean = ((src->mean.u.f * src->samples) +
1439 (dst->mean.u.f * dst->samples)) /
1440 (dst->samples + src->samples);
1442 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1443 (dst->samples * src->samples) /
1444 (dst->samples + src->samples);
1447 dst->samples += src->samples;
1448 dst->mean.u.f = mean;
1452 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1456 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1457 if (dst->max_run[i] < src->max_run[i])
1458 dst->max_run[i] = src->max_run[i];
1459 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1460 dst->min_run[i] = src->min_run[i];
1461 if (dst->max_bw[i] < src->max_bw[i])
1462 dst->max_bw[i] = src->max_bw[i];
1463 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1464 dst->min_bw[i] = src->min_bw[i];
1466 dst->iobytes[i] += src->iobytes[i];
1467 dst->agg[i] += src->agg[i];
1471 dst->kb_base = src->kb_base;
1472 if (!dst->unit_base)
1473 dst->unit_base = src->unit_base;
1476 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1481 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1482 if (!dst->unified_rw_rep) {
1483 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1484 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1485 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1486 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1487 sum_stat(&dst->iops_stat[l], &src->iops_stat[l], first);
1489 dst->io_bytes[l] += src->io_bytes[l];
1491 if (dst->runtime[l] < src->runtime[l])
1492 dst->runtime[l] = src->runtime[l];
1494 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1495 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1496 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1497 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1498 sum_stat(&dst->iops_stat[0], &src->iops_stat[l], first);
1500 dst->io_bytes[0] += src->io_bytes[l];
1502 if (dst->runtime[0] < src->runtime[l])
1503 dst->runtime[0] = src->runtime[l];
1506 * We're summing to the same destination, so override
1507 * 'first' after the first iteration of the loop
1513 dst->usr_time += src->usr_time;
1514 dst->sys_time += src->sys_time;
1515 dst->ctx += src->ctx;
1516 dst->majf += src->majf;
1517 dst->minf += src->minf;
1519 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1520 dst->io_u_map[k] += src->io_u_map[k];
1521 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1522 dst->io_u_submit[k] += src->io_u_submit[k];
1523 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1524 dst->io_u_complete[k] += src->io_u_complete[k];
1525 for (k = 0; k < FIO_IO_U_LAT_N_NR; k++)
1526 dst->io_u_lat_n[k] += src->io_u_lat_n[k];
1527 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1528 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1529 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1530 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1532 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1533 if (!dst->unified_rw_rep) {
1534 dst->total_io_u[k] += src->total_io_u[k];
1535 dst->short_io_u[k] += src->short_io_u[k];
1536 dst->drop_io_u[k] += src->drop_io_u[k];
1538 dst->total_io_u[0] += src->total_io_u[k];
1539 dst->short_io_u[0] += src->short_io_u[k];
1540 dst->drop_io_u[0] += src->drop_io_u[k];
1544 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1547 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1548 if (!dst->unified_rw_rep)
1549 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1551 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1555 dst->total_run_time += src->total_run_time;
1556 dst->total_submit += src->total_submit;
1557 dst->total_complete += src->total_complete;
1560 void init_group_run_stat(struct group_run_stats *gs)
1563 memset(gs, 0, sizeof(*gs));
1565 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1566 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1569 void init_thread_stat(struct thread_stat *ts)
1573 memset(ts, 0, sizeof(*ts));
1575 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1576 ts->lat_stat[j].min_val = -1UL;
1577 ts->clat_stat[j].min_val = -1UL;
1578 ts->slat_stat[j].min_val = -1UL;
1579 ts->bw_stat[j].min_val = -1UL;
1580 ts->iops_stat[j].min_val = -1UL;
1585 void __show_run_stats(void)
1587 struct group_run_stats *runstats, *rs;
1588 struct thread_data *td;
1589 struct thread_stat *threadstats, *ts;
1590 int i, j, k, nr_ts, last_ts, idx;
1591 int kb_base_warned = 0;
1592 int unit_base_warned = 0;
1593 struct json_object *root = NULL;
1594 struct json_array *array = NULL;
1595 struct buf_output output[FIO_OUTPUT_NR];
1596 struct flist_head **opt_lists;
1598 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1600 for (i = 0; i < groupid + 1; i++)
1601 init_group_run_stat(&runstats[i]);
1604 * find out how many threads stats we need. if group reporting isn't
1605 * enabled, it's one-per-td.
1609 for_each_td(td, i) {
1610 if (!td->o.group_reporting) {
1614 if (last_ts == td->groupid)
1619 last_ts = td->groupid;
1623 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1624 opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1626 for (i = 0; i < nr_ts; i++) {
1627 init_thread_stat(&threadstats[i]);
1628 opt_lists[i] = NULL;
1634 for_each_td(td, i) {
1637 if (idx && (!td->o.group_reporting ||
1638 (td->o.group_reporting && last_ts != td->groupid))) {
1643 last_ts = td->groupid;
1645 ts = &threadstats[j];
1647 ts->clat_percentiles = td->o.clat_percentiles;
1648 ts->percentile_precision = td->o.percentile_precision;
1649 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1650 opt_lists[j] = &td->opt_list;
1655 if (ts->groupid == -1) {
1657 * These are per-group shared already
1659 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1660 if (td->o.description)
1661 strncpy(ts->description, td->o.description,
1662 FIO_JOBDESC_SIZE - 1);
1664 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1667 * If multiple entries in this group, this is
1670 ts->thread_number = td->thread_number;
1671 ts->groupid = td->groupid;
1674 * first pid in group, not very useful...
1678 ts->kb_base = td->o.kb_base;
1679 ts->unit_base = td->o.unit_base;
1680 ts->unified_rw_rep = td->o.unified_rw_rep;
1681 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1682 log_info("fio: kb_base differs for jobs in group, using"
1683 " %u as the base\n", ts->kb_base);
1685 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1686 log_info("fio: unit_base differs for jobs in group, using"
1687 " %u as the base\n", ts->unit_base);
1688 unit_base_warned = 1;
1691 ts->continue_on_error = td->o.continue_on_error;
1692 ts->total_err_count += td->total_err_count;
1693 ts->first_error = td->first_error;
1695 if (!td->error && td->o.continue_on_error &&
1697 ts->error = td->first_error;
1698 ts->verror[sizeof(ts->verror) - 1] = '\0';
1699 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1700 } else if (td->error) {
1701 ts->error = td->error;
1702 ts->verror[sizeof(ts->verror) - 1] = '\0';
1703 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1707 ts->latency_depth = td->latency_qd;
1708 ts->latency_target = td->o.latency_target;
1709 ts->latency_percentile = td->o.latency_percentile;
1710 ts->latency_window = td->o.latency_window;
1712 ts->nr_block_infos = td->ts.nr_block_infos;
1713 for (k = 0; k < ts->nr_block_infos; k++)
1714 ts->block_infos[k] = td->ts.block_infos[k];
1716 sum_thread_stats(ts, &td->ts, idx == 1);
1719 ts->ss_state = td->ss.state;
1720 ts->ss_dur = td->ss.dur;
1721 ts->ss_head = td->ss.head;
1722 ts->ss_bw_data = td->ss.bw_data;
1723 ts->ss_iops_data = td->ss.iops_data;
1724 ts->ss_limit.u.f = td->ss.limit;
1725 ts->ss_slope.u.f = td->ss.slope;
1726 ts->ss_deviation.u.f = td->ss.deviation;
1727 ts->ss_criterion.u.f = td->ss.criterion;
1730 ts->ss_dur = ts->ss_state = 0;
1733 for (i = 0; i < nr_ts; i++) {
1734 unsigned long long bw;
1736 ts = &threadstats[i];
1737 if (ts->groupid == -1)
1739 rs = &runstats[ts->groupid];
1740 rs->kb_base = ts->kb_base;
1741 rs->unit_base = ts->unit_base;
1742 rs->unified_rw_rep += ts->unified_rw_rep;
1744 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1745 if (!ts->runtime[j])
1747 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1748 rs->min_run[j] = ts->runtime[j];
1749 if (ts->runtime[j] > rs->max_run[j])
1750 rs->max_run[j] = ts->runtime[j];
1754 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
1755 if (bw < rs->min_bw[j])
1757 if (bw > rs->max_bw[j])
1760 rs->iobytes[j] += ts->io_bytes[j];
1764 for (i = 0; i < groupid + 1; i++) {
1769 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1770 if (rs->max_run[ddir])
1771 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
1776 for (i = 0; i < FIO_OUTPUT_NR; i++)
1777 buf_output_init(&output[i]);
1780 * don't overwrite last signal output
1782 if (output_format & FIO_OUTPUT_NORMAL)
1783 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1784 if (output_format & FIO_OUTPUT_JSON) {
1785 struct thread_data *global;
1788 unsigned long long ms_since_epoch;
1790 gettimeofday(&now, NULL);
1791 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1792 (unsigned long long)(now.tv_usec) / 1000;
1794 os_ctime_r((const time_t *) &now.tv_sec, time_buf,
1796 if (time_buf[strlen(time_buf) - 1] == '\n')
1797 time_buf[strlen(time_buf) - 1] = '\0';
1799 root = json_create_object();
1800 json_object_add_value_string(root, "fio version", fio_version_string);
1801 json_object_add_value_int(root, "timestamp", now.tv_sec);
1802 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1803 json_object_add_value_string(root, "time", time_buf);
1804 global = get_global_options();
1805 json_add_job_opts(root, "global options", &global->opt_list, false);
1806 array = json_create_array();
1807 json_object_add_value_array(root, "jobs", array);
1811 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1813 for (i = 0; i < nr_ts; i++) {
1814 ts = &threadstats[i];
1815 rs = &runstats[ts->groupid];
1818 fio_server_send_job_options(opt_lists[i], i);
1819 fio_server_send_ts(ts, rs);
1821 if (output_format & FIO_OUTPUT_TERSE)
1822 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1823 if (output_format & FIO_OUTPUT_JSON) {
1824 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1825 json_array_add_value_object(array, tmp);
1827 if (output_format & FIO_OUTPUT_NORMAL)
1828 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1831 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1832 /* disk util stats, if any */
1833 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1835 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1837 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1838 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1839 json_free_object(root);
1842 for (i = 0; i < groupid + 1; i++) {
1847 fio_server_send_gs(rs);
1848 else if (output_format & FIO_OUTPUT_NORMAL)
1849 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1853 fio_server_send_du();
1854 else if (output_format & FIO_OUTPUT_NORMAL) {
1855 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1856 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1859 for (i = 0; i < FIO_OUTPUT_NR; i++) {
1860 struct buf_output *out = &output[i];
1862 log_info_buf(out->buf, out->buflen);
1863 buf_output_free(out);
1872 void show_run_stats(void)
1874 fio_mutex_down(stat_mutex);
1876 fio_mutex_up(stat_mutex);
1879 void __show_running_run_stats(void)
1881 struct thread_data *td;
1882 unsigned long long *rt;
1886 fio_mutex_down(stat_mutex);
1888 rt = malloc(thread_number * sizeof(unsigned long long));
1889 fio_gettime(&ts, NULL);
1891 for_each_td(td, i) {
1892 td->update_rusage = 1;
1893 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1894 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1895 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1896 td->ts.total_run_time = mtime_since(&td->epoch, &ts);
1898 rt[i] = mtime_since(&td->start, &ts);
1899 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1900 td->ts.runtime[DDIR_READ] += rt[i];
1901 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1902 td->ts.runtime[DDIR_WRITE] += rt[i];
1903 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1904 td->ts.runtime[DDIR_TRIM] += rt[i];
1907 for_each_td(td, i) {
1908 if (td->runstate >= TD_EXITED)
1910 if (td->rusage_sem) {
1911 td->update_rusage = 1;
1912 fio_mutex_down(td->rusage_sem);
1914 td->update_rusage = 0;
1919 for_each_td(td, i) {
1920 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1921 td->ts.runtime[DDIR_READ] -= rt[i];
1922 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1923 td->ts.runtime[DDIR_WRITE] -= rt[i];
1924 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1925 td->ts.runtime[DDIR_TRIM] -= rt[i];
1929 fio_mutex_up(stat_mutex);
1932 static int status_interval_init;
1933 static struct timespec status_time;
1934 static int status_file_disabled;
1936 #define FIO_STATUS_FILE "fio-dump-status"
1938 static int check_status_file(void)
1941 const char *temp_dir;
1942 char fio_status_file_path[PATH_MAX];
1944 if (status_file_disabled)
1947 temp_dir = getenv("TMPDIR");
1948 if (temp_dir == NULL) {
1949 temp_dir = getenv("TEMP");
1950 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1953 if (temp_dir == NULL)
1956 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1958 if (stat(fio_status_file_path, &sb))
1961 if (unlink(fio_status_file_path) < 0) {
1962 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1964 log_err("fio: disabling status file updates\n");
1965 status_file_disabled = 1;
1971 void check_for_running_stats(void)
1973 if (status_interval) {
1974 if (!status_interval_init) {
1975 fio_gettime(&status_time, NULL);
1976 status_interval_init = 1;
1977 } else if (mtime_since_now(&status_time) >= status_interval) {
1978 show_running_run_stats();
1979 fio_gettime(&status_time, NULL);
1983 if (check_status_file()) {
1984 show_running_run_stats();
1989 static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
1994 if (data > is->max_val)
1996 if (data < is->min_val)
1999 delta = val - is->mean.u.f;
2001 is->mean.u.f += delta / (is->samples + 1.0);
2002 is->S.u.f += delta * (val - is->mean.u.f);
2009 * Return a struct io_logs, which is added to the tail of the log
2012 static struct io_logs *get_new_log(struct io_log *iolog)
2014 size_t new_size, new_samples;
2015 struct io_logs *cur_log;
2018 * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
2021 if (!iolog->cur_log_max)
2022 new_samples = DEF_LOG_ENTRIES;
2024 new_samples = iolog->cur_log_max * 2;
2025 if (new_samples > MAX_LOG_ENTRIES)
2026 new_samples = MAX_LOG_ENTRIES;
2029 new_size = new_samples * log_entry_sz(iolog);
2031 cur_log = smalloc(sizeof(*cur_log));
2033 INIT_FLIST_HEAD(&cur_log->list);
2034 cur_log->log = malloc(new_size);
2036 cur_log->nr_samples = 0;
2037 cur_log->max_samples = new_samples;
2038 flist_add_tail(&cur_log->list, &iolog->io_logs);
2039 iolog->cur_log_max = new_samples;
2049 * Add and return a new log chunk, or return current log if big enough
2051 static struct io_logs *regrow_log(struct io_log *iolog)
2053 struct io_logs *cur_log;
2056 if (!iolog || iolog->disabled)
2059 cur_log = iolog_cur_log(iolog);
2061 cur_log = get_new_log(iolog);
2066 if (cur_log->nr_samples < cur_log->max_samples)
2070 * No room for a new sample. If we're compressing on the fly, flush
2071 * out the current chunk
2073 if (iolog->log_gz) {
2074 if (iolog_cur_flush(iolog, cur_log)) {
2075 log_err("fio: failed flushing iolog! Will stop logging.\n");
2081 * Get a new log array, and add to our list
2083 cur_log = get_new_log(iolog);
2085 log_err("fio: failed extending iolog! Will stop logging.\n");
2089 if (!iolog->pending || !iolog->pending->nr_samples)
2093 * Flush pending items to new log
2095 for (i = 0; i < iolog->pending->nr_samples; i++) {
2096 struct io_sample *src, *dst;
2098 src = get_sample(iolog, iolog->pending, i);
2099 dst = get_sample(iolog, cur_log, i);
2100 memcpy(dst, src, log_entry_sz(iolog));
2102 cur_log->nr_samples = iolog->pending->nr_samples;
2104 iolog->pending->nr_samples = 0;
2108 iolog->disabled = true;
2112 void regrow_logs(struct thread_data *td)
2114 regrow_log(td->slat_log);
2115 regrow_log(td->clat_log);
2116 regrow_log(td->clat_hist_log);
2117 regrow_log(td->lat_log);
2118 regrow_log(td->bw_log);
2119 regrow_log(td->iops_log);
2120 td->flags &= ~TD_F_REGROW_LOGS;
2123 static struct io_logs *get_cur_log(struct io_log *iolog)
2125 struct io_logs *cur_log;
2127 cur_log = iolog_cur_log(iolog);
2129 cur_log = get_new_log(iolog);
2134 if (cur_log->nr_samples < cur_log->max_samples)
2138 * Out of space. If we're in IO offload mode, or we're not doing
2139 * per unit logging (hence logging happens outside of the IO thread
2140 * as well), add a new log chunk inline. If we're doing inline
2141 * submissions, flag 'td' as needing a log regrow and we'll take
2142 * care of it on the submission side.
2144 if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
2145 !per_unit_log(iolog))
2146 return regrow_log(iolog);
2148 iolog->td->flags |= TD_F_REGROW_LOGS;
2149 assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2150 return iolog->pending;
2153 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2154 enum fio_ddir ddir, unsigned int bs,
2155 unsigned long t, uint64_t offset)
2157 struct io_logs *cur_log;
2159 if (iolog->disabled)
2161 if (flist_empty(&iolog->io_logs))
2162 iolog->avg_last = t;
2164 cur_log = get_cur_log(iolog);
2166 struct io_sample *s;
2168 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2171 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2172 io_sample_set_ddir(iolog, s, ddir);
2175 if (iolog->log_offset) {
2176 struct io_sample_offset *so = (void *) s;
2178 so->offset = offset;
2181 cur_log->nr_samples++;
2185 iolog->disabled = true;
2188 static inline void reset_io_stat(struct io_stat *ios)
2190 ios->max_val = ios->min_val = ios->samples = 0;
2191 ios->mean.u.f = ios->S.u.f = 0;
2194 void reset_io_stats(struct thread_data *td)
2196 struct thread_stat *ts = &td->ts;
2199 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2200 reset_io_stat(&ts->clat_stat[i]);
2201 reset_io_stat(&ts->slat_stat[i]);
2202 reset_io_stat(&ts->lat_stat[i]);
2203 reset_io_stat(&ts->bw_stat[i]);
2204 reset_io_stat(&ts->iops_stat[i]);
2206 ts->io_bytes[i] = 0;
2208 ts->total_io_u[i] = 0;
2209 ts->short_io_u[i] = 0;
2210 ts->drop_io_u[i] = 0;
2212 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
2213 ts->io_u_plat[i][j] = 0;
2216 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2217 ts->io_u_map[i] = 0;
2218 ts->io_u_submit[i] = 0;
2219 ts->io_u_complete[i] = 0;
2222 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
2223 ts->io_u_lat_n[i] = 0;
2224 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
2225 ts->io_u_lat_u[i] = 0;
2226 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
2227 ts->io_u_lat_m[i] = 0;
2229 ts->total_submit = 0;
2230 ts->total_complete = 0;
2233 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2234 unsigned long elapsed, bool log_max)
2237 * Note an entry in the log. Use the mean from the logged samples,
2238 * making sure to properly round up. Only write a log entry if we
2239 * had actual samples done.
2241 if (iolog->avg_window[ddir].samples) {
2242 union io_sample_data data;
2245 data.val = iolog->avg_window[ddir].max_val;
2247 data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2249 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2252 reset_io_stat(&iolog->avg_window[ddir]);
2255 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2260 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2261 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2264 static long add_log_sample(struct thread_data *td, struct io_log *iolog,
2265 union io_sample_data data, enum fio_ddir ddir,
2266 unsigned int bs, uint64_t offset)
2268 unsigned long elapsed, this_window;
2273 elapsed = mtime_since_now(&td->epoch);
2276 * If no time averaging, just add the log sample.
2278 if (!iolog->avg_msec) {
2279 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2284 * Add the sample. If the time period has passed, then
2285 * add that entry to the log and clear.
2287 add_stat_sample(&iolog->avg_window[ddir], data.val);
2290 * If period hasn't passed, adding the above sample is all we
2293 this_window = elapsed - iolog->avg_last;
2294 if (elapsed < iolog->avg_last)
2295 return iolog->avg_last - elapsed;
2296 else if (this_window < iolog->avg_msec) {
2297 int diff = iolog->avg_msec - this_window;
2299 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2303 _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2305 iolog->avg_last = elapsed - (this_window - iolog->avg_msec);
2306 return iolog->avg_msec;
2309 void finalize_logs(struct thread_data *td, bool unit_logs)
2311 unsigned long elapsed;
2313 elapsed = mtime_since_now(&td->epoch);
2315 if (td->clat_log && unit_logs)
2316 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2317 if (td->slat_log && unit_logs)
2318 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2319 if (td->lat_log && unit_logs)
2320 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2321 if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2322 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2323 if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2324 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2327 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned int bs)
2329 struct io_log *iolog;
2334 iolog = agg_io_log[ddir];
2335 __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2338 static void add_clat_percentile_sample(struct thread_stat *ts,
2339 unsigned long long nsec, enum fio_ddir ddir)
2341 unsigned int idx = plat_val_to_idx(nsec);
2342 assert(idx < FIO_IO_U_PLAT_NR);
2344 ts->io_u_plat[ddir][idx]++;
2347 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2348 unsigned long long nsec, unsigned int bs, uint64_t offset)
2350 unsigned long elapsed, this_window;
2351 struct thread_stat *ts = &td->ts;
2352 struct io_log *iolog = td->clat_hist_log;
2356 add_stat_sample(&ts->clat_stat[ddir], nsec);
2359 add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
2362 if (ts->clat_percentiles)
2363 add_clat_percentile_sample(ts, nsec, ddir);
2365 if (iolog && iolog->hist_msec) {
2366 struct io_hist *hw = &iolog->hist_window[ddir];
2369 elapsed = mtime_since_now(&td->epoch);
2371 hw->hist_last = elapsed;
2372 this_window = elapsed - hw->hist_last;
2374 if (this_window >= iolog->hist_msec) {
2375 unsigned int *io_u_plat;
2376 struct io_u_plat_entry *dst;
2379 * Make a byte-for-byte copy of the latency histogram
2380 * stored in td->ts.io_u_plat[ddir], recording it in a
2381 * log sample. Note that the matching call to free() is
2382 * located in iolog.c after printing this sample to the
2385 io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
2386 dst = malloc(sizeof(struct io_u_plat_entry));
2387 memcpy(&(dst->io_u_plat), io_u_plat,
2388 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2389 flist_add(&dst->list, &hw->list);
2390 __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2394 * Update the last time we recorded as being now, minus
2395 * any drift in time we encountered before actually
2396 * making the record.
2398 hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2406 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2407 unsigned long usec, unsigned int bs, uint64_t offset)
2409 struct thread_stat *ts = &td->ts;
2416 add_stat_sample(&ts->slat_stat[ddir], usec);
2419 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2424 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2425 unsigned long long nsec, unsigned int bs, uint64_t offset)
2427 struct thread_stat *ts = &td->ts;
2434 add_stat_sample(&ts->lat_stat[ddir], nsec);
2437 add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
2443 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2444 unsigned int bytes, unsigned long long spent)
2446 struct thread_stat *ts = &td->ts;
2450 rate = (unsigned long) (bytes * 1000000ULL / spent);
2456 add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2459 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2460 bytes, io_u->offset);
2462 td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2466 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
2467 struct timespec *t, unsigned int avg_time,
2468 uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
2469 struct io_stat *stat, struct io_log *log,
2472 unsigned long spent, rate;
2474 unsigned int next, next_log;
2476 next_log = avg_time;
2478 spent = mtime_since(parent_tv, t);
2479 if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
2480 return avg_time - spent;
2485 * Compute both read and write rates for the interval.
2487 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2490 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
2492 continue; /* No entries for interval */
2496 rate = delta * 1000 / spent / 1024; /* KiB/s */
2498 rate = (delta * 1000) / spent;
2502 add_stat_sample(&stat[ddir], rate);
2505 unsigned int bs = 0;
2507 if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2508 bs = td->o.min_bs[ddir];
2510 next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0);
2511 next_log = min(next_log, next);
2514 stat_io_bytes[ddir] = this_io_bytes[ddir];
2517 timespec_add_msec(parent_tv, avg_time);
2521 if (spent <= avg_time)
2524 next = avg_time - (1 + spent - avg_time);
2526 return min(next, next_log);
2529 static int add_bw_samples(struct thread_data *td, struct timespec *t)
2531 return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
2532 td->this_io_bytes, td->stat_io_bytes,
2533 td->ts.bw_stat, td->bw_log, true);
2536 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2539 struct thread_stat *ts = &td->ts;
2543 add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2546 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2547 bytes, io_u->offset);
2549 td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2553 static int add_iops_samples(struct thread_data *td, struct timespec *t)
2555 return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
2556 td->this_io_blocks, td->stat_io_blocks,
2557 td->ts.iops_stat, td->iops_log, false);
2561 * Returns msecs to next event
2563 int calc_log_samples(void)
2565 struct thread_data *td;
2566 unsigned int next = ~0U, tmp;
2567 struct timespec now;
2570 fio_gettime(&now, NULL);
2572 for_each_td(td, i) {
2575 if (in_ramp_time(td) ||
2576 !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2577 next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2581 (td->bw_log && !per_unit_log(td->bw_log))) {
2582 tmp = add_bw_samples(td, &now);
2586 if (!td->iops_log ||
2587 (td->iops_log && !per_unit_log(td->iops_log))) {
2588 tmp = add_iops_samples(td, &now);
2594 return next == ~0U ? 0 : next;
2597 void stat_init(void)
2599 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2602 void stat_exit(void)
2605 * When we have the mutex, we know out-of-band access to it
2608 fio_mutex_down(stat_mutex);
2609 fio_mutex_remove(stat_mutex);
2613 * Called from signal handler. Wake up status thread.
2615 void show_running_run_stats(void)
2620 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2622 /* Ignore io_u's which span multiple blocks--they will just get
2623 * inaccurate counts. */
2624 int idx = (io_u->offset - io_u->file->file_offset)
2625 / td->o.bs[DDIR_TRIM];
2626 uint32_t *info = &td->ts.block_infos[idx];
2627 assert(idx < td->ts.nr_block_infos);