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, 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 = 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(unsigned int *io_u_plat, unsigned long nr,
138 fio_fp64_t *plist, unsigned long long **output,
139 unsigned long long *maxv, unsigned long long *minv)
141 unsigned 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);
198 * Find and display the p-th percentile of clat
200 static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
201 fio_fp64_t *plist, unsigned int precision,
202 struct buf_output *out)
204 unsigned int divisor, len, i, j = 0;
205 unsigned long long minv, maxv;
206 unsigned long long *ovals;
207 int is_last, per_line, scale_down, time_width;
210 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
215 * We default to nsecs, but if the value range is such that we
216 * should scale down to usecs or msecs, do that.
218 if (minv > 2000000 && maxv > 99999999ULL) {
221 log_buf(out, " clat percentiles (msec):\n |");
222 } else if (minv > 2000 && maxv > 99999) {
225 log_buf(out, " clat percentiles (usec):\n |");
229 log_buf(out, " clat percentiles (nsec):\n |");
233 time_width = max(5, (int) (log10(maxv / divisor) + 1));
234 snprintf(fmt, sizeof(fmt), " %%%u.%ufth=[%%%dllu]%%c", precision + 3,
235 precision, time_width);
236 /* fmt will be something like " %5.2fth=[%4llu]%c" */
237 per_line = (80 - 7) / (precision + 10 + time_width);
239 for (j = 0; j < len; j++) {
241 if (j != 0 && (j % per_line) == 0)
244 /* end of the list */
245 is_last = (j == len - 1);
247 for (i = 0; i < scale_down; i++)
248 ovals[j] = (ovals[j] + 999) / 1000;
250 log_buf(out, fmt, plist[j].u.f, ovals[j], is_last ? '\n' : ',');
255 if ((j % per_line) == per_line - 1) /* for formatting */
264 bool calc_lat(struct io_stat *is, unsigned long long *min,
265 unsigned long long *max, double *mean, double *dev)
267 double n = (double) is->samples;
274 *mean = is->mean.u.f;
277 *dev = sqrt(is->S.u.f / (n - 1.0));
284 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
286 char *io, *agg, *min, *max;
287 char *ioalt, *aggalt, *minalt, *maxalt;
288 const char *str[] = { " READ", " WRITE" , " TRIM"};
291 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
293 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
294 const int i2p = is_power_of_2(rs->kb_base);
299 io = num2str(rs->iobytes[i], 4, 1, i2p, N2S_BYTE);
300 ioalt = num2str(rs->iobytes[i], 4, 1, !i2p, N2S_BYTE);
301 agg = num2str(rs->agg[i], 4, 1, i2p, rs->unit_base);
302 aggalt = num2str(rs->agg[i], 4, 1, !i2p, rs->unit_base);
303 min = num2str(rs->min_bw[i], 4, 1, i2p, rs->unit_base);
304 minalt = num2str(rs->min_bw[i], 4, 1, !i2p, rs->unit_base);
305 max = num2str(rs->max_bw[i], 4, 1, i2p, rs->unit_base);
306 maxalt = num2str(rs->max_bw[i], 4, 1, !i2p, rs->unit_base);
307 log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
308 rs->unified_rw_rep ? " MIXED" : str[i],
309 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
310 (unsigned long long) rs->min_run[i],
311 (unsigned long long) rs->max_run[i]);
324 void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
329 * Do depth distribution calculations
331 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
333 io_u_dist[i] = (double) map[i] / (double) total;
334 io_u_dist[i] *= 100.0;
335 if (io_u_dist[i] < 0.1 && map[i])
342 static void stat_calc_lat(struct thread_stat *ts, double *dst,
343 unsigned int *src, int nr)
345 unsigned long total = ddir_rw_sum(ts->total_io_u);
349 * Do latency distribution calculations
351 for (i = 0; i < nr; i++) {
353 dst[i] = (double) src[i] / (double) total;
355 if (dst[i] < 0.01 && src[i])
363 * To keep the terse format unaltered, add all of the ns latency
364 * buckets to the first us latency bucket
366 void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
368 unsigned long ntotal = 0, total = ddir_rw_sum(ts->total_io_u);
371 stat_calc_lat(ts, io_u_lat_u, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
373 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
374 ntotal += ts->io_u_lat_n[i];
376 io_u_lat_u[0] += 100.0 * (double) ntotal / (double) total;
379 void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat)
381 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_n, FIO_IO_U_LAT_N_NR);
384 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
386 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
389 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
391 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
394 static void display_lat(const char *name, unsigned long long min,
395 unsigned long long max, double mean, double dev,
396 struct buf_output *out)
398 const char *base = "(nsec)";
401 if (nsec_to_msec(&min, &max, &mean, &dev))
403 else if (nsec_to_usec(&min, &max, &mean, &dev))
406 minp = num2str(min, 6, 1, 0, N2S_NONE);
407 maxp = num2str(max, 6, 1, 0, N2S_NONE);
409 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
410 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
416 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
417 int ddir, struct buf_output *out)
419 const char *str[] = { " read", "write", " trim" };
421 unsigned long long min, max, bw, iops;
423 char *io_p, *bw_p, *bw_p_alt, *iops_p;
426 assert(ddir_rw(ddir));
428 if (!ts->runtime[ddir])
431 i2p = is_power_of_2(rs->kb_base);
432 runt = ts->runtime[ddir];
434 bw = (1000 * ts->io_bytes[ddir]) / runt;
435 io_p = num2str(ts->io_bytes[ddir], 4, 1, i2p, N2S_BYTE);
436 bw_p = num2str(bw, 4, 1, i2p, ts->unit_base);
437 bw_p_alt = num2str(bw, 4, 1, !i2p, ts->unit_base);
439 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
440 iops_p = num2str(iops, 4, 1, 0, N2S_NONE);
442 log_buf(out, " %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)\n",
443 rs->unified_rw_rep ? "mixed" : str[ddir],
444 iops_p, bw_p, bw_p_alt, io_p,
445 (unsigned long long) ts->runtime[ddir]);
452 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
453 display_lat("slat", min, max, mean, dev, out);
454 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
455 display_lat("clat", min, max, mean, dev, out);
456 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
457 display_lat(" lat", min, max, mean, dev, out);
459 if (ts->clat_percentiles) {
460 show_clat_percentiles(ts->io_u_plat[ddir],
461 ts->clat_stat[ddir].samples,
463 ts->percentile_precision, out);
465 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
466 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
469 if ((rs->unit_base == 1) && i2p)
471 else if (rs->unit_base == 1)
478 if (rs->unit_base == 1) {
486 p_of_agg = mean * 100 / (double) rs->agg[ddir];
487 if (p_of_agg > 100.0)
491 if (mean > fkb_base * fkb_base) {
496 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
499 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
500 "avg=%5.02f, stdev=%5.02f, samples=%5lu\n",
501 bw_str, min, max, p_of_agg, mean, dev,
502 (&ts->bw_stat[ddir])->samples);
504 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
505 log_buf(out, " iops : min=%5llu, max=%5llu, avg=%5.02f, "
506 "stdev=%5.02f, samples=%5lu\n",
507 min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
511 static int show_lat(double *io_u_lat, int nr, const char **ranges,
512 const char *msg, struct buf_output *out)
514 int new_line = 1, i, line = 0, shown = 0;
516 for (i = 0; i < nr; i++) {
517 if (io_u_lat[i] <= 0.0)
523 log_buf(out, " lat (%s) : ", msg);
529 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
541 static void show_lat_n(double *io_u_lat_n, struct buf_output *out)
543 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
544 "250=", "500=", "750=", "1000=", };
546 show_lat(io_u_lat_n, FIO_IO_U_LAT_N_NR, ranges, "nsec", out);
549 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
551 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
552 "250=", "500=", "750=", "1000=", };
554 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
557 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
559 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
560 "250=", "500=", "750=", "1000=", "2000=",
563 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
566 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
568 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
569 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
570 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
572 stat_calc_lat_n(ts, io_u_lat_n);
573 stat_calc_lat_u(ts, io_u_lat_u);
574 stat_calc_lat_m(ts, io_u_lat_m);
576 show_lat_n(io_u_lat_n, out);
577 show_lat_u(io_u_lat_u, out);
578 show_lat_m(io_u_lat_m, out);
581 static int block_state_category(int block_state)
583 switch (block_state) {
584 case BLOCK_STATE_UNINIT:
586 case BLOCK_STATE_TRIMMED:
587 case BLOCK_STATE_WRITTEN:
589 case BLOCK_STATE_WRITE_FAILURE:
590 case BLOCK_STATE_TRIM_FAILURE:
593 /* Silence compile warning on some BSDs and have a return */
599 static int compare_block_infos(const void *bs1, const void *bs2)
601 uint32_t block1 = *(uint32_t *)bs1;
602 uint32_t block2 = *(uint32_t *)bs2;
603 int state1 = BLOCK_INFO_STATE(block1);
604 int state2 = BLOCK_INFO_STATE(block2);
605 int bscat1 = block_state_category(state1);
606 int bscat2 = block_state_category(state2);
607 int cycles1 = BLOCK_INFO_TRIMS(block1);
608 int cycles2 = BLOCK_INFO_TRIMS(block2);
615 if (cycles1 < cycles2)
617 if (cycles1 > cycles2)
625 assert(block1 == block2);
629 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
630 fio_fp64_t *plist, unsigned int **percentiles,
636 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
638 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
645 * Sort the percentile list. Note that it may already be sorted if
646 * we are using the default values, but since it's a short list this
647 * isn't a worry. Also note that this does not work for NaN values.
650 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
653 /* Start only after the uninit entries end */
655 nr_uninit < nr_block_infos
656 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
660 if (nr_uninit == nr_block_infos)
663 *percentiles = calloc(len, sizeof(**percentiles));
665 for (i = 0; i < len; i++) {
666 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
668 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
671 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
672 for (i = 0; i < nr_block_infos; i++)
673 types[BLOCK_INFO_STATE(block_infos[i])]++;
678 static const char *block_state_names[] = {
679 [BLOCK_STATE_UNINIT] = "unwritten",
680 [BLOCK_STATE_TRIMMED] = "trimmed",
681 [BLOCK_STATE_WRITTEN] = "written",
682 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
683 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
686 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
687 fio_fp64_t *plist, struct buf_output *out)
690 unsigned int *percentiles = NULL;
691 unsigned int block_state_counts[BLOCK_STATE_COUNT];
693 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
694 &percentiles, block_state_counts);
696 log_buf(out, " block lifetime percentiles :\n |");
698 for (i = 0; i < len; i++) {
699 uint32_t block_info = percentiles[i];
700 #define LINE_LENGTH 75
701 char str[LINE_LENGTH];
702 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
703 plist[i].u.f, block_info,
704 i == len - 1 ? '\n' : ',');
705 assert(strln < LINE_LENGTH);
706 if (pos + strln > LINE_LENGTH) {
708 log_buf(out, "\n |");
710 log_buf(out, "%s", str);
717 log_buf(out, " states :");
718 for (i = 0; i < BLOCK_STATE_COUNT; i++)
719 log_buf(out, " %s=%u%c",
720 block_state_names[i], block_state_counts[i],
721 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
724 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
726 char *p1, *p1alt, *p2;
727 unsigned long long bw_mean, iops_mean;
728 const int i2p = is_power_of_2(ts->kb_base);
733 bw_mean = steadystate_bw_mean(ts);
734 iops_mean = steadystate_iops_mean(ts);
736 p1 = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, i2p, ts->unit_base);
737 p1alt = num2str(bw_mean / ts->kb_base, 4, ts->kb_base, !i2p, ts->unit_base);
738 p2 = num2str(iops_mean, 4, 1, 0, N2S_NONE);
740 log_buf(out, " steadystate : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
741 ts->ss_state & __FIO_SS_ATTAINED ? "yes" : "no",
743 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
744 ts->ss_state & __FIO_SS_SLOPE ? " slope": " mean dev",
745 ts->ss_criterion.u.f,
746 ts->ss_state & __FIO_SS_PCT ? "%" : "");
753 static void show_thread_status_normal(struct thread_stat *ts,
754 struct group_run_stats *rs,
755 struct buf_output *out)
757 double usr_cpu, sys_cpu;
758 unsigned long runtime;
759 double io_u_dist[FIO_IO_U_MAP_NR];
763 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
766 memset(time_buf, 0, sizeof(time_buf));
769 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
772 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
773 ts->name, ts->groupid, ts->members,
774 ts->error, (int) ts->pid, time_buf);
776 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
777 ts->name, ts->groupid, ts->members,
778 ts->error, ts->verror, (int) ts->pid,
782 if (strlen(ts->description))
783 log_buf(out, " Description : [%s]\n", ts->description);
785 if (ts->io_bytes[DDIR_READ])
786 show_ddir_status(rs, ts, DDIR_READ, out);
787 if (ts->io_bytes[DDIR_WRITE])
788 show_ddir_status(rs, ts, DDIR_WRITE, out);
789 if (ts->io_bytes[DDIR_TRIM])
790 show_ddir_status(rs, ts, DDIR_TRIM, out);
792 show_latencies(ts, out);
794 runtime = ts->total_run_time;
796 double runt = (double) runtime;
798 usr_cpu = (double) ts->usr_time * 100 / runt;
799 sys_cpu = (double) ts->sys_time * 100 / runt;
805 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
806 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
807 (unsigned long long) ts->ctx,
808 (unsigned long long) ts->majf,
809 (unsigned long long) ts->minf);
811 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
812 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
813 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
814 io_u_dist[1], io_u_dist[2],
815 io_u_dist[3], io_u_dist[4],
816 io_u_dist[5], io_u_dist[6]);
818 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
819 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
820 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
821 io_u_dist[1], io_u_dist[2],
822 io_u_dist[3], io_u_dist[4],
823 io_u_dist[5], io_u_dist[6]);
824 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
825 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
826 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
827 io_u_dist[1], io_u_dist[2],
828 io_u_dist[3], io_u_dist[4],
829 io_u_dist[5], io_u_dist[6]);
830 log_buf(out, " issued rwt: total=%llu,%llu,%llu,"
831 " short=%llu,%llu,%llu,"
832 " dropped=%llu,%llu,%llu\n",
833 (unsigned long long) ts->total_io_u[0],
834 (unsigned long long) ts->total_io_u[1],
835 (unsigned long long) ts->total_io_u[2],
836 (unsigned long long) ts->short_io_u[0],
837 (unsigned long long) ts->short_io_u[1],
838 (unsigned long long) ts->short_io_u[2],
839 (unsigned long long) ts->drop_io_u[0],
840 (unsigned long long) ts->drop_io_u[1],
841 (unsigned long long) ts->drop_io_u[2]);
842 if (ts->continue_on_error) {
843 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
844 (unsigned long long)ts->total_err_count,
846 strerror(ts->first_error));
848 if (ts->latency_depth) {
849 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
850 (unsigned long long)ts->latency_target,
851 (unsigned long long)ts->latency_window,
852 ts->latency_percentile.u.f,
856 if (ts->nr_block_infos)
857 show_block_infos(ts->nr_block_infos, ts->block_infos,
858 ts->percentile_list, out);
861 show_ss_normal(ts, out);
864 static void show_ddir_status_terse(struct thread_stat *ts,
865 struct group_run_stats *rs, int ddir,
866 struct buf_output *out)
868 unsigned long long min, max, minv, maxv, bw, iops;
869 unsigned long long *ovals = NULL;
874 assert(ddir_rw(ddir));
877 if (ts->runtime[ddir]) {
878 uint64_t runt = ts->runtime[ddir];
880 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
881 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
884 log_buf(out, ";%llu;%llu;%llu;%llu",
885 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
886 (unsigned long long) ts->runtime[ddir]);
888 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
889 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
891 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
893 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
894 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
896 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
898 if (ts->clat_percentiles) {
899 len = calc_clat_percentiles(ts->io_u_plat[ddir],
900 ts->clat_stat[ddir].samples,
901 ts->percentile_list, &ovals, &maxv,
906 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
908 log_buf(out, ";0%%=0");
911 log_buf(out, ";%f%%=%llu", ts->percentile_list[i].u.f, ovals[i]/1000);
914 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
915 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
917 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
922 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
923 double p_of_agg = 100.0;
926 p_of_agg = mean * 100 / (double) rs->agg[ddir];
927 if (p_of_agg > 100.0)
931 log_buf(out, ";%llu;%llu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
933 log_buf(out, ";%llu;%llu;%f%%;%f;%f", 0ULL, 0ULL, 0.0, 0.0, 0.0);
936 static void add_ddir_status_json(struct thread_stat *ts,
937 struct group_run_stats *rs, int ddir, struct json_object *parent)
939 unsigned long long min, max, minv, maxv;
940 unsigned long long bw;
941 unsigned long long *ovals = NULL;
942 double mean, dev, iops;
945 const char *ddirname[] = {"read", "write", "trim"};
946 struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
948 double p_of_agg = 100.0;
950 assert(ddir_rw(ddir));
952 if (ts->unified_rw_rep && ddir != DDIR_READ)
955 dir_object = json_create_object();
956 json_object_add_value_object(parent,
957 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
961 if (ts->runtime[ddir]) {
962 uint64_t runt = ts->runtime[ddir];
964 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
965 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
968 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
969 json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
970 json_object_add_value_int(dir_object, "bw", bw);
971 json_object_add_value_float(dir_object, "iops", iops);
972 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
973 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
974 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
975 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
977 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
981 tmp_object = json_create_object();
982 json_object_add_value_object(dir_object, "slat_ns", tmp_object);
983 json_object_add_value_int(tmp_object, "min", min);
984 json_object_add_value_int(tmp_object, "max", max);
985 json_object_add_value_float(tmp_object, "mean", mean);
986 json_object_add_value_float(tmp_object, "stddev", dev);
988 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
992 tmp_object = json_create_object();
993 json_object_add_value_object(dir_object, "clat_ns", tmp_object);
994 json_object_add_value_int(tmp_object, "min", min);
995 json_object_add_value_int(tmp_object, "max", max);
996 json_object_add_value_float(tmp_object, "mean", mean);
997 json_object_add_value_float(tmp_object, "stddev", dev);
999 if (ts->clat_percentiles) {
1000 len = calc_clat_percentiles(ts->io_u_plat[ddir],
1001 ts->clat_stat[ddir].samples,
1002 ts->percentile_list, &ovals, &maxv,
1007 percentile_object = json_create_object();
1008 json_object_add_value_object(tmp_object, "percentile", percentile_object);
1009 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1011 json_object_add_value_int(percentile_object, "0.00", 0);
1014 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
1015 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
1018 if (output_format & FIO_OUTPUT_JSON_PLUS) {
1019 clat_bins_object = json_create_object();
1020 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
1021 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
1022 if (ts->io_u_plat[ddir][i]) {
1023 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1024 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
1029 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
1033 tmp_object = json_create_object();
1034 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1035 json_object_add_value_int(tmp_object, "min", min);
1036 json_object_add_value_int(tmp_object, "max", max);
1037 json_object_add_value_float(tmp_object, "mean", mean);
1038 json_object_add_value_float(tmp_object, "stddev", dev);
1042 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
1043 if (rs->agg[ddir]) {
1044 p_of_agg = mean * 100 / (double) rs->agg[ddir];
1045 if (p_of_agg > 100.0)
1050 p_of_agg = mean = dev = 0.0;
1052 json_object_add_value_int(dir_object, "bw_min", min);
1053 json_object_add_value_int(dir_object, "bw_max", max);
1054 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1055 json_object_add_value_float(dir_object, "bw_mean", mean);
1056 json_object_add_value_float(dir_object, "bw_dev", dev);
1057 json_object_add_value_int(dir_object, "bw_samples",
1058 (&ts->bw_stat[ddir])->samples);
1060 if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
1064 json_object_add_value_int(dir_object, "iops_min", min);
1065 json_object_add_value_int(dir_object, "iops_max", max);
1066 json_object_add_value_float(dir_object, "iops_mean", mean);
1067 json_object_add_value_float(dir_object, "iops_stddev", dev);
1068 json_object_add_value_int(dir_object, "iops_samples",
1069 (&ts->iops_stat[ddir])->samples);
1072 static void show_thread_status_terse_all(struct thread_stat *ts,
1073 struct group_run_stats *rs, int ver,
1074 struct buf_output *out)
1076 double io_u_dist[FIO_IO_U_MAP_NR];
1077 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1078 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1079 double usr_cpu, sys_cpu;
1084 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1086 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1087 ts->name, ts->groupid, ts->error);
1089 /* Log Read Status */
1090 show_ddir_status_terse(ts, rs, DDIR_READ, out);
1091 /* Log Write Status */
1092 show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1093 /* Log Trim Status */
1094 if (ver == 2 || ver == 4)
1095 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1098 if (ts->total_run_time) {
1099 double runt = (double) ts->total_run_time;
1101 usr_cpu = (double) ts->usr_time * 100 / runt;
1102 sys_cpu = (double) ts->sys_time * 100 / runt;
1108 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1109 (unsigned long long) ts->ctx,
1110 (unsigned long long) ts->majf,
1111 (unsigned long long) ts->minf);
1113 /* Calc % distribution of IO depths, usecond, msecond latency */
1114 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1115 stat_calc_lat_nu(ts, io_u_lat_u);
1116 stat_calc_lat_m(ts, io_u_lat_m);
1118 /* Only show fixed 7 I/O depth levels*/
1119 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1120 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1121 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1123 /* Microsecond latency */
1124 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1125 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1126 /* Millisecond latency */
1127 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1128 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1130 /* disk util stats, if any */
1132 show_disk_util(1, NULL, out);
1134 /* Additional output if continue_on_error set - default off*/
1135 if (ts->continue_on_error)
1136 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1140 /* Additional output if description is set */
1141 if (strlen(ts->description))
1142 log_buf(out, ";%s", ts->description);
1147 static void json_add_job_opts(struct json_object *root, const char *name,
1148 struct flist_head *opt_list, bool num_jobs)
1150 struct json_object *dir_object;
1151 struct flist_head *entry;
1152 struct print_option *p;
1154 if (flist_empty(opt_list))
1157 dir_object = json_create_object();
1158 json_object_add_value_object(root, name, dir_object);
1160 flist_for_each(entry, opt_list) {
1161 const char *pos = "";
1163 p = flist_entry(entry, struct print_option, list);
1164 if (!num_jobs && !strcmp(p->name, "numjobs"))
1168 json_object_add_value_string(dir_object, p->name, pos);
1172 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1173 struct group_run_stats *rs,
1174 struct flist_head *opt_list)
1176 struct json_object *root, *tmp;
1177 struct jobs_eta *je;
1178 double io_u_dist[FIO_IO_U_MAP_NR];
1179 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
1180 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1181 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1182 double usr_cpu, sys_cpu;
1186 root = json_create_object();
1187 json_object_add_value_string(root, "jobname", ts->name);
1188 json_object_add_value_int(root, "groupid", ts->groupid);
1189 json_object_add_value_int(root, "error", ts->error);
1192 je = get_jobs_eta(true, &size);
1194 json_object_add_value_int(root, "eta", je->eta_sec);
1195 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1199 json_add_job_opts(root, "job options", opt_list, true);
1201 add_ddir_status_json(ts, rs, DDIR_READ, root);
1202 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1203 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1206 if (ts->total_run_time) {
1207 double runt = (double) ts->total_run_time;
1209 usr_cpu = (double) ts->usr_time * 100 / runt;
1210 sys_cpu = (double) ts->sys_time * 100 / runt;
1215 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1216 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1217 json_object_add_value_int(root, "ctx", ts->ctx);
1218 json_object_add_value_int(root, "majf", ts->majf);
1219 json_object_add_value_int(root, "minf", ts->minf);
1222 /* Calc % distribution of IO depths, usecond, msecond latency */
1223 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1224 stat_calc_lat_n(ts, io_u_lat_n);
1225 stat_calc_lat_u(ts, io_u_lat_u);
1226 stat_calc_lat_m(ts, io_u_lat_m);
1228 tmp = json_create_object();
1229 json_object_add_value_object(root, "iodepth_level", tmp);
1230 /* Only show fixed 7 I/O depth levels*/
1231 for (i = 0; i < 7; i++) {
1234 snprintf(name, 20, "%d", 1 << i);
1236 snprintf(name, 20, ">=%d", 1 << i);
1237 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1240 /* Nanosecond latency */
1241 tmp = json_create_object();
1242 json_object_add_value_object(root, "latency_ns", tmp);
1243 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++) {
1244 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1245 "250", "500", "750", "1000", };
1246 json_object_add_value_float(tmp, ranges[i], io_u_lat_n[i]);
1248 /* Microsecond latency */
1249 tmp = json_create_object();
1250 json_object_add_value_object(root, "latency_us", tmp);
1251 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1252 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1253 "250", "500", "750", "1000", };
1254 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1256 /* Millisecond latency */
1257 tmp = json_create_object();
1258 json_object_add_value_object(root, "latency_ms", tmp);
1259 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1260 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1261 "250", "500", "750", "1000", "2000",
1263 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1266 /* Additional output if continue_on_error set - default off*/
1267 if (ts->continue_on_error) {
1268 json_object_add_value_int(root, "total_err", ts->total_err_count);
1269 json_object_add_value_int(root, "first_error", ts->first_error);
1272 if (ts->latency_depth) {
1273 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1274 json_object_add_value_int(root, "latency_target", ts->latency_target);
1275 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1276 json_object_add_value_int(root, "latency_window", ts->latency_window);
1279 /* Additional output if description is set */
1280 if (strlen(ts->description))
1281 json_object_add_value_string(root, "desc", ts->description);
1283 if (ts->nr_block_infos) {
1284 /* Block error histogram and types */
1286 unsigned int *percentiles = NULL;
1287 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1289 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1290 ts->percentile_list,
1291 &percentiles, block_state_counts);
1294 struct json_object *block, *percentile_object, *states;
1296 block = json_create_object();
1297 json_object_add_value_object(root, "block", block);
1299 percentile_object = json_create_object();
1300 json_object_add_value_object(block, "percentiles",
1302 for (i = 0; i < len; i++) {
1304 snprintf(buf, sizeof(buf), "%f",
1305 ts->percentile_list[i].u.f);
1306 json_object_add_value_int(percentile_object,
1311 states = json_create_object();
1312 json_object_add_value_object(block, "states", states);
1313 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1314 json_object_add_value_int(states,
1315 block_state_names[state],
1316 block_state_counts[state]);
1323 struct json_object *data;
1324 struct json_array *iops, *bw;
1328 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1329 ts->ss_state & __FIO_SS_IOPS ? "iops" : "bw",
1330 ts->ss_state & __FIO_SS_SLOPE ? "_slope" : "",
1331 (float) ts->ss_limit.u.f,
1332 ts->ss_state & __FIO_SS_PCT ? "%" : "");
1334 tmp = json_create_object();
1335 json_object_add_value_object(root, "steadystate", tmp);
1336 json_object_add_value_string(tmp, "ss", ss_buf);
1337 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
1338 json_object_add_value_int(tmp, "attained", (ts->ss_state & __FIO_SS_ATTAINED) > 0);
1340 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
1341 ts->ss_state & __FIO_SS_PCT ? "%" : "");
1342 json_object_add_value_string(tmp, "criterion", ss_buf);
1343 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
1344 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
1346 data = json_create_object();
1347 json_object_add_value_object(tmp, "data", data);
1348 bw = json_create_array();
1349 iops = json_create_array();
1352 ** if ss was attained or the buffer is not full,
1353 ** ss->head points to the first element in the list.
1354 ** otherwise it actually points to the second element
1357 if ((ts->ss_state & __FIO_SS_ATTAINED) || !(ts->ss_state & __FIO_SS_BUFFER_FULL))
1360 j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
1361 for (i = 0; i < ts->ss_dur; i++) {
1362 k = (j + i) % ts->ss_dur;
1363 json_array_add_value_int(bw, ts->ss_bw_data[k]);
1364 json_array_add_value_int(iops, ts->ss_iops_data[k]);
1366 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
1367 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
1368 json_object_add_value_array(data, "iops", iops);
1369 json_object_add_value_array(data, "bw", bw);
1375 static void show_thread_status_terse(struct thread_stat *ts,
1376 struct group_run_stats *rs,
1377 struct buf_output *out)
1379 if (terse_version >= 2 && terse_version <= 4)
1380 show_thread_status_terse_all(ts, rs, terse_version, out);
1382 log_err("fio: bad terse version!? %d\n", terse_version);
1385 struct json_object *show_thread_status(struct thread_stat *ts,
1386 struct group_run_stats *rs,
1387 struct flist_head *opt_list,
1388 struct buf_output *out)
1390 struct json_object *ret = NULL;
1392 if (output_format & FIO_OUTPUT_TERSE)
1393 show_thread_status_terse(ts, rs, out);
1394 if (output_format & FIO_OUTPUT_JSON)
1395 ret = show_thread_status_json(ts, rs, opt_list);
1396 if (output_format & FIO_OUTPUT_NORMAL)
1397 show_thread_status_normal(ts, rs, out);
1402 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1406 if (src->samples == 0)
1409 dst->min_val = min(dst->min_val, src->min_val);
1410 dst->max_val = max(dst->max_val, src->max_val);
1413 * Compute new mean and S after the merge
1414 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1415 * #Parallel_algorithm>
1418 mean = src->mean.u.f;
1421 double delta = src->mean.u.f - dst->mean.u.f;
1423 mean = ((src->mean.u.f * src->samples) +
1424 (dst->mean.u.f * dst->samples)) /
1425 (dst->samples + src->samples);
1427 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1428 (dst->samples * src->samples) /
1429 (dst->samples + src->samples);
1432 dst->samples += src->samples;
1433 dst->mean.u.f = mean;
1437 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1441 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1442 if (dst->max_run[i] < src->max_run[i])
1443 dst->max_run[i] = src->max_run[i];
1444 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1445 dst->min_run[i] = src->min_run[i];
1446 if (dst->max_bw[i] < src->max_bw[i])
1447 dst->max_bw[i] = src->max_bw[i];
1448 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1449 dst->min_bw[i] = src->min_bw[i];
1451 dst->iobytes[i] += src->iobytes[i];
1452 dst->agg[i] += src->agg[i];
1456 dst->kb_base = src->kb_base;
1457 if (!dst->unit_base)
1458 dst->unit_base = src->unit_base;
1461 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1466 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1467 if (!dst->unified_rw_rep) {
1468 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1469 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1470 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1471 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1472 sum_stat(&dst->iops_stat[l], &src->iops_stat[l], first);
1474 dst->io_bytes[l] += src->io_bytes[l];
1476 if (dst->runtime[l] < src->runtime[l])
1477 dst->runtime[l] = src->runtime[l];
1479 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1480 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1481 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1482 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1483 sum_stat(&dst->iops_stat[0], &src->iops_stat[l], first);
1485 dst->io_bytes[0] += src->io_bytes[l];
1487 if (dst->runtime[0] < src->runtime[l])
1488 dst->runtime[0] = src->runtime[l];
1491 * We're summing to the same destination, so override
1492 * 'first' after the first iteration of the loop
1498 dst->usr_time += src->usr_time;
1499 dst->sys_time += src->sys_time;
1500 dst->ctx += src->ctx;
1501 dst->majf += src->majf;
1502 dst->minf += src->minf;
1504 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1505 dst->io_u_map[k] += src->io_u_map[k];
1506 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1507 dst->io_u_submit[k] += src->io_u_submit[k];
1508 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1509 dst->io_u_complete[k] += src->io_u_complete[k];
1510 for (k = 0; k < FIO_IO_U_LAT_N_NR; k++)
1511 dst->io_u_lat_n[k] += src->io_u_lat_n[k];
1512 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1513 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1514 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1515 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1517 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1518 if (!dst->unified_rw_rep) {
1519 dst->total_io_u[k] += src->total_io_u[k];
1520 dst->short_io_u[k] += src->short_io_u[k];
1521 dst->drop_io_u[k] += src->drop_io_u[k];
1523 dst->total_io_u[0] += src->total_io_u[k];
1524 dst->short_io_u[0] += src->short_io_u[k];
1525 dst->drop_io_u[0] += src->drop_io_u[k];
1529 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1532 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1533 if (!dst->unified_rw_rep)
1534 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1536 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1540 dst->total_run_time += src->total_run_time;
1541 dst->total_submit += src->total_submit;
1542 dst->total_complete += src->total_complete;
1545 void init_group_run_stat(struct group_run_stats *gs)
1548 memset(gs, 0, sizeof(*gs));
1550 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1551 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1554 void init_thread_stat(struct thread_stat *ts)
1558 memset(ts, 0, sizeof(*ts));
1560 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1561 ts->lat_stat[j].min_val = -1UL;
1562 ts->clat_stat[j].min_val = -1UL;
1563 ts->slat_stat[j].min_val = -1UL;
1564 ts->bw_stat[j].min_val = -1UL;
1565 ts->iops_stat[j].min_val = -1UL;
1570 void __show_run_stats(void)
1572 struct group_run_stats *runstats, *rs;
1573 struct thread_data *td;
1574 struct thread_stat *threadstats, *ts;
1575 int i, j, k, nr_ts, last_ts, idx;
1576 int kb_base_warned = 0;
1577 int unit_base_warned = 0;
1578 struct json_object *root = NULL;
1579 struct json_array *array = NULL;
1580 struct buf_output output[FIO_OUTPUT_NR];
1581 struct flist_head **opt_lists;
1583 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1585 for (i = 0; i < groupid + 1; i++)
1586 init_group_run_stat(&runstats[i]);
1589 * find out how many threads stats we need. if group reporting isn't
1590 * enabled, it's one-per-td.
1594 for_each_td(td, i) {
1595 if (!td->o.group_reporting) {
1599 if (last_ts == td->groupid)
1604 last_ts = td->groupid;
1608 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1609 opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1611 for (i = 0; i < nr_ts; i++) {
1612 init_thread_stat(&threadstats[i]);
1613 opt_lists[i] = NULL;
1619 for_each_td(td, i) {
1622 if (idx && (!td->o.group_reporting ||
1623 (td->o.group_reporting && last_ts != td->groupid))) {
1628 last_ts = td->groupid;
1630 ts = &threadstats[j];
1632 ts->clat_percentiles = td->o.clat_percentiles;
1633 ts->percentile_precision = td->o.percentile_precision;
1634 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1635 opt_lists[j] = &td->opt_list;
1640 if (ts->groupid == -1) {
1642 * These are per-group shared already
1644 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1645 if (td->o.description)
1646 strncpy(ts->description, td->o.description,
1647 FIO_JOBDESC_SIZE - 1);
1649 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1652 * If multiple entries in this group, this is
1655 ts->thread_number = td->thread_number;
1656 ts->groupid = td->groupid;
1659 * first pid in group, not very useful...
1663 ts->kb_base = td->o.kb_base;
1664 ts->unit_base = td->o.unit_base;
1665 ts->unified_rw_rep = td->o.unified_rw_rep;
1666 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1667 log_info("fio: kb_base differs for jobs in group, using"
1668 " %u as the base\n", ts->kb_base);
1670 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1671 log_info("fio: unit_base differs for jobs in group, using"
1672 " %u as the base\n", ts->unit_base);
1673 unit_base_warned = 1;
1676 ts->continue_on_error = td->o.continue_on_error;
1677 ts->total_err_count += td->total_err_count;
1678 ts->first_error = td->first_error;
1680 if (!td->error && td->o.continue_on_error &&
1682 ts->error = td->first_error;
1683 ts->verror[sizeof(ts->verror) - 1] = '\0';
1684 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1685 } else if (td->error) {
1686 ts->error = td->error;
1687 ts->verror[sizeof(ts->verror) - 1] = '\0';
1688 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1692 ts->latency_depth = td->latency_qd;
1693 ts->latency_target = td->o.latency_target;
1694 ts->latency_percentile = td->o.latency_percentile;
1695 ts->latency_window = td->o.latency_window;
1697 ts->nr_block_infos = td->ts.nr_block_infos;
1698 for (k = 0; k < ts->nr_block_infos; k++)
1699 ts->block_infos[k] = td->ts.block_infos[k];
1701 sum_thread_stats(ts, &td->ts, idx == 1);
1704 ts->ss_state = td->ss.state;
1705 ts->ss_dur = td->ss.dur;
1706 ts->ss_head = td->ss.head;
1707 ts->ss_bw_data = td->ss.bw_data;
1708 ts->ss_iops_data = td->ss.iops_data;
1709 ts->ss_limit.u.f = td->ss.limit;
1710 ts->ss_slope.u.f = td->ss.slope;
1711 ts->ss_deviation.u.f = td->ss.deviation;
1712 ts->ss_criterion.u.f = td->ss.criterion;
1715 ts->ss_dur = ts->ss_state = 0;
1718 for (i = 0; i < nr_ts; i++) {
1719 unsigned long long bw;
1721 ts = &threadstats[i];
1722 if (ts->groupid == -1)
1724 rs = &runstats[ts->groupid];
1725 rs->kb_base = ts->kb_base;
1726 rs->unit_base = ts->unit_base;
1727 rs->unified_rw_rep += ts->unified_rw_rep;
1729 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1730 if (!ts->runtime[j])
1732 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1733 rs->min_run[j] = ts->runtime[j];
1734 if (ts->runtime[j] > rs->max_run[j])
1735 rs->max_run[j] = ts->runtime[j];
1739 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
1740 if (bw < rs->min_bw[j])
1742 if (bw > rs->max_bw[j])
1745 rs->iobytes[j] += ts->io_bytes[j];
1749 for (i = 0; i < groupid + 1; i++) {
1754 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1755 if (rs->max_run[ddir])
1756 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
1761 for (i = 0; i < FIO_OUTPUT_NR; i++)
1762 buf_output_init(&output[i]);
1765 * don't overwrite last signal output
1767 if (output_format & FIO_OUTPUT_NORMAL)
1768 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1769 if (output_format & FIO_OUTPUT_JSON) {
1770 struct thread_data *global;
1773 unsigned long long ms_since_epoch;
1775 gettimeofday(&now, NULL);
1776 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
1777 (unsigned long long)(now.tv_usec) / 1000;
1779 os_ctime_r((const time_t *) &now.tv_sec, time_buf,
1781 if (time_buf[strlen(time_buf) - 1] == '\n')
1782 time_buf[strlen(time_buf) - 1] = '\0';
1784 root = json_create_object();
1785 json_object_add_value_string(root, "fio version", fio_version_string);
1786 json_object_add_value_int(root, "timestamp", now.tv_sec);
1787 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
1788 json_object_add_value_string(root, "time", time_buf);
1789 global = get_global_options();
1790 json_add_job_opts(root, "global options", &global->opt_list, false);
1791 array = json_create_array();
1792 json_object_add_value_array(root, "jobs", array);
1796 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1798 for (i = 0; i < nr_ts; i++) {
1799 ts = &threadstats[i];
1800 rs = &runstats[ts->groupid];
1803 fio_server_send_job_options(opt_lists[i], i);
1804 fio_server_send_ts(ts, rs);
1806 if (output_format & FIO_OUTPUT_TERSE)
1807 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1808 if (output_format & FIO_OUTPUT_JSON) {
1809 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1810 json_array_add_value_object(array, tmp);
1812 if (output_format & FIO_OUTPUT_NORMAL)
1813 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1816 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1817 /* disk util stats, if any */
1818 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1820 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1822 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1823 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1824 json_free_object(root);
1827 for (i = 0; i < groupid + 1; i++) {
1832 fio_server_send_gs(rs);
1833 else if (output_format & FIO_OUTPUT_NORMAL)
1834 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1838 fio_server_send_du();
1839 else if (output_format & FIO_OUTPUT_NORMAL) {
1840 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1841 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1844 for (i = 0; i < FIO_OUTPUT_NR; i++) {
1845 struct buf_output *out = &output[i];
1847 log_info_buf(out->buf, out->buflen);
1848 buf_output_free(out);
1857 void show_run_stats(void)
1859 fio_mutex_down(stat_mutex);
1861 fio_mutex_up(stat_mutex);
1864 void __show_running_run_stats(void)
1866 struct thread_data *td;
1867 unsigned long long *rt;
1871 fio_mutex_down(stat_mutex);
1873 rt = malloc(thread_number * sizeof(unsigned long long));
1874 fio_gettime(&ts, NULL);
1876 for_each_td(td, i) {
1877 td->update_rusage = 1;
1878 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1879 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1880 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1881 td->ts.total_run_time = mtime_since(&td->epoch, &ts);
1883 rt[i] = mtime_since(&td->start, &ts);
1884 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1885 td->ts.runtime[DDIR_READ] += rt[i];
1886 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1887 td->ts.runtime[DDIR_WRITE] += rt[i];
1888 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1889 td->ts.runtime[DDIR_TRIM] += rt[i];
1892 for_each_td(td, i) {
1893 if (td->runstate >= TD_EXITED)
1895 if (td->rusage_sem) {
1896 td->update_rusage = 1;
1897 fio_mutex_down(td->rusage_sem);
1899 td->update_rusage = 0;
1904 for_each_td(td, i) {
1905 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1906 td->ts.runtime[DDIR_READ] -= rt[i];
1907 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1908 td->ts.runtime[DDIR_WRITE] -= rt[i];
1909 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1910 td->ts.runtime[DDIR_TRIM] -= rt[i];
1914 fio_mutex_up(stat_mutex);
1917 static int status_interval_init;
1918 static struct timespec status_time;
1919 static int status_file_disabled;
1921 #define FIO_STATUS_FILE "fio-dump-status"
1923 static int check_status_file(void)
1926 const char *temp_dir;
1927 char fio_status_file_path[PATH_MAX];
1929 if (status_file_disabled)
1932 temp_dir = getenv("TMPDIR");
1933 if (temp_dir == NULL) {
1934 temp_dir = getenv("TEMP");
1935 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1938 if (temp_dir == NULL)
1941 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1943 if (stat(fio_status_file_path, &sb))
1946 if (unlink(fio_status_file_path) < 0) {
1947 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1949 log_err("fio: disabling status file updates\n");
1950 status_file_disabled = 1;
1956 void check_for_running_stats(void)
1958 if (status_interval) {
1959 if (!status_interval_init) {
1960 fio_gettime(&status_time, NULL);
1961 status_interval_init = 1;
1962 } else if (mtime_since_now(&status_time) >= status_interval) {
1963 show_running_run_stats();
1964 fio_gettime(&status_time, NULL);
1968 if (check_status_file()) {
1969 show_running_run_stats();
1974 static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
1979 if (data > is->max_val)
1981 if (data < is->min_val)
1984 delta = val - is->mean.u.f;
1986 is->mean.u.f += delta / (is->samples + 1.0);
1987 is->S.u.f += delta * (val - is->mean.u.f);
1994 * Return a struct io_logs, which is added to the tail of the log
1997 static struct io_logs *get_new_log(struct io_log *iolog)
1999 size_t new_size, new_samples;
2000 struct io_logs *cur_log;
2003 * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
2006 if (!iolog->cur_log_max)
2007 new_samples = DEF_LOG_ENTRIES;
2009 new_samples = iolog->cur_log_max * 2;
2010 if (new_samples > MAX_LOG_ENTRIES)
2011 new_samples = MAX_LOG_ENTRIES;
2014 new_size = new_samples * log_entry_sz(iolog);
2016 cur_log = smalloc(sizeof(*cur_log));
2018 INIT_FLIST_HEAD(&cur_log->list);
2019 cur_log->log = malloc(new_size);
2021 cur_log->nr_samples = 0;
2022 cur_log->max_samples = new_samples;
2023 flist_add_tail(&cur_log->list, &iolog->io_logs);
2024 iolog->cur_log_max = new_samples;
2034 * Add and return a new log chunk, or return current log if big enough
2036 static struct io_logs *regrow_log(struct io_log *iolog)
2038 struct io_logs *cur_log;
2041 if (!iolog || iolog->disabled)
2044 cur_log = iolog_cur_log(iolog);
2046 cur_log = get_new_log(iolog);
2051 if (cur_log->nr_samples < cur_log->max_samples)
2055 * No room for a new sample. If we're compressing on the fly, flush
2056 * out the current chunk
2058 if (iolog->log_gz) {
2059 if (iolog_cur_flush(iolog, cur_log)) {
2060 log_err("fio: failed flushing iolog! Will stop logging.\n");
2066 * Get a new log array, and add to our list
2068 cur_log = get_new_log(iolog);
2070 log_err("fio: failed extending iolog! Will stop logging.\n");
2074 if (!iolog->pending || !iolog->pending->nr_samples)
2078 * Flush pending items to new log
2080 for (i = 0; i < iolog->pending->nr_samples; i++) {
2081 struct io_sample *src, *dst;
2083 src = get_sample(iolog, iolog->pending, i);
2084 dst = get_sample(iolog, cur_log, i);
2085 memcpy(dst, src, log_entry_sz(iolog));
2087 cur_log->nr_samples = iolog->pending->nr_samples;
2089 iolog->pending->nr_samples = 0;
2093 iolog->disabled = true;
2097 void regrow_logs(struct thread_data *td)
2099 regrow_log(td->slat_log);
2100 regrow_log(td->clat_log);
2101 regrow_log(td->clat_hist_log);
2102 regrow_log(td->lat_log);
2103 regrow_log(td->bw_log);
2104 regrow_log(td->iops_log);
2105 td->flags &= ~TD_F_REGROW_LOGS;
2108 static struct io_logs *get_cur_log(struct io_log *iolog)
2110 struct io_logs *cur_log;
2112 cur_log = iolog_cur_log(iolog);
2114 cur_log = get_new_log(iolog);
2119 if (cur_log->nr_samples < cur_log->max_samples)
2123 * Out of space. If we're in IO offload mode, or we're not doing
2124 * per unit logging (hence logging happens outside of the IO thread
2125 * as well), add a new log chunk inline. If we're doing inline
2126 * submissions, flag 'td' as needing a log regrow and we'll take
2127 * care of it on the submission side.
2129 if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
2130 !per_unit_log(iolog))
2131 return regrow_log(iolog);
2133 iolog->td->flags |= TD_F_REGROW_LOGS;
2134 assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2135 return iolog->pending;
2138 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2139 enum fio_ddir ddir, unsigned int bs,
2140 unsigned long t, uint64_t offset)
2142 struct io_logs *cur_log;
2144 if (iolog->disabled)
2146 if (flist_empty(&iolog->io_logs))
2147 iolog->avg_last = t;
2149 cur_log = get_cur_log(iolog);
2151 struct io_sample *s;
2153 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2156 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2157 io_sample_set_ddir(iolog, s, ddir);
2160 if (iolog->log_offset) {
2161 struct io_sample_offset *so = (void *) s;
2163 so->offset = offset;
2166 cur_log->nr_samples++;
2170 iolog->disabled = true;
2173 static inline void reset_io_stat(struct io_stat *ios)
2175 ios->max_val = ios->min_val = ios->samples = 0;
2176 ios->mean.u.f = ios->S.u.f = 0;
2179 void reset_io_stats(struct thread_data *td)
2181 struct thread_stat *ts = &td->ts;
2184 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2185 reset_io_stat(&ts->clat_stat[i]);
2186 reset_io_stat(&ts->slat_stat[i]);
2187 reset_io_stat(&ts->lat_stat[i]);
2188 reset_io_stat(&ts->bw_stat[i]);
2189 reset_io_stat(&ts->iops_stat[i]);
2191 ts->io_bytes[i] = 0;
2193 ts->total_io_u[i] = 0;
2194 ts->short_io_u[i] = 0;
2195 ts->drop_io_u[i] = 0;
2197 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
2198 ts->io_u_plat[i][j] = 0;
2201 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2202 ts->io_u_map[i] = 0;
2203 ts->io_u_submit[i] = 0;
2204 ts->io_u_complete[i] = 0;
2207 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
2208 ts->io_u_lat_n[i] = 0;
2209 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
2210 ts->io_u_lat_u[i] = 0;
2211 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
2212 ts->io_u_lat_m[i] = 0;
2214 ts->total_submit = 0;
2215 ts->total_complete = 0;
2218 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2219 unsigned long elapsed, bool log_max)
2222 * Note an entry in the log. Use the mean from the logged samples,
2223 * making sure to properly round up. Only write a log entry if we
2224 * had actual samples done.
2226 if (iolog->avg_window[ddir].samples) {
2227 union io_sample_data data;
2230 data.val = iolog->avg_window[ddir].max_val;
2232 data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2234 __add_log_sample(iolog, data, ddir, 0, elapsed, 0);
2237 reset_io_stat(&iolog->avg_window[ddir]);
2240 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2245 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2246 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2249 static long add_log_sample(struct thread_data *td, struct io_log *iolog,
2250 union io_sample_data data, enum fio_ddir ddir,
2251 unsigned int bs, uint64_t offset)
2253 unsigned long elapsed, this_window;
2258 elapsed = mtime_since_now(&td->epoch);
2261 * If no time averaging, just add the log sample.
2263 if (!iolog->avg_msec) {
2264 __add_log_sample(iolog, data, ddir, bs, elapsed, offset);
2269 * Add the sample. If the time period has passed, then
2270 * add that entry to the log and clear.
2272 add_stat_sample(&iolog->avg_window[ddir], data.val);
2275 * If period hasn't passed, adding the above sample is all we
2278 this_window = elapsed - iolog->avg_last;
2279 if (elapsed < iolog->avg_last)
2280 return iolog->avg_last - elapsed;
2281 else if (this_window < iolog->avg_msec) {
2282 int diff = iolog->avg_msec - this_window;
2284 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
2288 _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2290 iolog->avg_last = elapsed - (this_window - iolog->avg_msec);
2291 return iolog->avg_msec;
2294 void finalize_logs(struct thread_data *td, bool unit_logs)
2296 unsigned long elapsed;
2298 elapsed = mtime_since_now(&td->epoch);
2300 if (td->clat_log && unit_logs)
2301 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2302 if (td->slat_log && unit_logs)
2303 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2304 if (td->lat_log && unit_logs)
2305 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2306 if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
2307 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2308 if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
2309 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2312 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned int bs)
2314 struct io_log *iolog;
2319 iolog = agg_io_log[ddir];
2320 __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0);
2323 static void add_clat_percentile_sample(struct thread_stat *ts,
2324 unsigned long long nsec, enum fio_ddir ddir)
2326 unsigned int idx = plat_val_to_idx(nsec);
2327 assert(idx < FIO_IO_U_PLAT_NR);
2329 ts->io_u_plat[ddir][idx]++;
2332 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2333 unsigned long long nsec, unsigned int bs, uint64_t offset)
2335 unsigned long elapsed, this_window;
2336 struct thread_stat *ts = &td->ts;
2337 struct io_log *iolog = td->clat_hist_log;
2341 add_stat_sample(&ts->clat_stat[ddir], nsec);
2344 add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
2347 if (ts->clat_percentiles)
2348 add_clat_percentile_sample(ts, nsec, ddir);
2350 if (iolog && iolog->hist_msec) {
2351 struct io_hist *hw = &iolog->hist_window[ddir];
2354 elapsed = mtime_since_now(&td->epoch);
2356 hw->hist_last = elapsed;
2357 this_window = elapsed - hw->hist_last;
2359 if (this_window >= iolog->hist_msec) {
2360 unsigned int *io_u_plat;
2361 struct io_u_plat_entry *dst;
2364 * Make a byte-for-byte copy of the latency histogram
2365 * stored in td->ts.io_u_plat[ddir], recording it in a
2366 * log sample. Note that the matching call to free() is
2367 * located in iolog.c after printing this sample to the
2370 io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
2371 dst = malloc(sizeof(struct io_u_plat_entry));
2372 memcpy(&(dst->io_u_plat), io_u_plat,
2373 FIO_IO_U_PLAT_NR * sizeof(unsigned int));
2374 flist_add(&dst->list, &hw->list);
2375 __add_log_sample(iolog, sample_plat(dst), ddir, bs,
2379 * Update the last time we recorded as being now, minus
2380 * any drift in time we encountered before actually
2381 * making the record.
2383 hw->hist_last = elapsed - (this_window - iolog->hist_msec);
2391 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2392 unsigned long usec, unsigned int bs, uint64_t offset)
2394 struct thread_stat *ts = &td->ts;
2401 add_stat_sample(&ts->slat_stat[ddir], usec);
2404 add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
2409 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2410 unsigned long long nsec, unsigned int bs, uint64_t offset)
2412 struct thread_stat *ts = &td->ts;
2419 add_stat_sample(&ts->lat_stat[ddir], nsec);
2422 add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
2428 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
2429 unsigned int bytes, unsigned long long spent)
2431 struct thread_stat *ts = &td->ts;
2435 rate = (unsigned long) (bytes * 1000000ULL / spent);
2441 add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
2444 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
2445 bytes, io_u->offset);
2447 td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
2451 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
2452 struct timespec *t, unsigned int avg_time,
2453 uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
2454 struct io_stat *stat, struct io_log *log,
2457 unsigned long spent, rate;
2459 unsigned int next, next_log;
2461 next_log = avg_time;
2463 spent = mtime_since(parent_tv, t);
2464 if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
2465 return avg_time - spent;
2470 * Compute both read and write rates for the interval.
2472 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2475 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
2477 continue; /* No entries for interval */
2481 rate = delta * 1000 / spent / 1024; /* KiB/s */
2483 rate = (delta * 1000) / spent;
2487 add_stat_sample(&stat[ddir], rate);
2490 unsigned int bs = 0;
2492 if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
2493 bs = td->o.min_bs[ddir];
2495 next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0);
2496 next_log = min(next_log, next);
2499 stat_io_bytes[ddir] = this_io_bytes[ddir];
2502 timespec_add_msec(parent_tv, avg_time);
2506 if (spent <= avg_time)
2509 next = avg_time - (1 + spent - avg_time);
2511 return min(next, next_log);
2514 static int add_bw_samples(struct thread_data *td, struct timespec *t)
2516 return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
2517 td->this_io_bytes, td->stat_io_bytes,
2518 td->ts.bw_stat, td->bw_log, true);
2521 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
2524 struct thread_stat *ts = &td->ts;
2528 add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
2531 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
2532 bytes, io_u->offset);
2534 td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
2538 static int add_iops_samples(struct thread_data *td, struct timespec *t)
2540 return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
2541 td->this_io_blocks, td->stat_io_blocks,
2542 td->ts.iops_stat, td->iops_log, false);
2546 * Returns msecs to next event
2548 int calc_log_samples(void)
2550 struct thread_data *td;
2551 unsigned int next = ~0U, tmp;
2552 struct timespec now;
2555 fio_gettime(&now, NULL);
2557 for_each_td(td, i) {
2560 if (in_ramp_time(td) ||
2561 !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
2562 next = min(td->o.iops_avg_time, td->o.bw_avg_time);
2566 (td->bw_log && !per_unit_log(td->bw_log))) {
2567 tmp = add_bw_samples(td, &now);
2571 if (!td->iops_log ||
2572 (td->iops_log && !per_unit_log(td->iops_log))) {
2573 tmp = add_iops_samples(td, &now);
2579 return next == ~0U ? 0 : next;
2582 void stat_init(void)
2584 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2587 void stat_exit(void)
2590 * When we have the mutex, we know out-of-band access to it
2593 fio_mutex_down(stat_mutex);
2594 fio_mutex_remove(stat_mutex);
2598 * Called from signal handler. Wake up status thread.
2600 void show_running_run_stats(void)
2605 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2607 /* Ignore io_u's which span multiple blocks--they will just get
2608 * inaccurate counts. */
2609 int idx = (io_u->offset - io_u->file->file_offset)
2610 / td->o.bs[DDIR_TRIM];
2611 uint32_t *info = &td->ts.block_infos[idx];
2612 assert(idx < td->ts.nr_block_infos);