9 #include "lib/ieee754.h"
11 #include "lib/getrusage.h"
14 #include "lib/output_buffer.h"
15 #include "helper_thread.h"
18 #include "oslib/asprintf.h"
21 #define LOG_MSEC_SLACK 2
23 #define LOG_MSEC_SLACK 1
26 struct fio_sem *stat_sem;
28 void clear_rusage_stat(struct thread_data *td)
30 struct thread_stat *ts = &td->ts;
32 fio_getrusage(&td->ru_start);
33 ts->usr_time = ts->sys_time = 0;
35 ts->minf = ts->majf = 0;
38 void update_rusage_stat(struct thread_data *td)
40 struct thread_stat *ts = &td->ts;
42 fio_getrusage(&td->ru_end);
43 ts->usr_time += mtime_since_tv(&td->ru_start.ru_utime,
44 &td->ru_end.ru_utime);
45 ts->sys_time += mtime_since_tv(&td->ru_start.ru_stime,
46 &td->ru_end.ru_stime);
47 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
48 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
49 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
50 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
52 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
56 * Given a latency, return the index of the corresponding bucket in
57 * the structure tracking percentiles.
59 * (1) find the group (and error bits) that the value (latency)
60 * belongs to by looking at its MSB. (2) find the bucket number in the
61 * group by looking at the index bits.
64 static unsigned int plat_val_to_idx(unsigned long long val)
66 unsigned int msb, error_bits, base, offset, idx;
68 /* Find MSB starting from bit 0 */
72 msb = (sizeof(val)*8) - __builtin_clzll(val) - 1;
75 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
76 * all bits of the sample as index
78 if (msb <= FIO_IO_U_PLAT_BITS)
81 /* Compute the number of error bits to discard*/
82 error_bits = msb - FIO_IO_U_PLAT_BITS;
84 /* Compute the number of buckets before the group */
85 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
88 * Discard the error bits and apply the mask to find the
89 * index for the buckets in the group
91 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
93 /* Make sure the index does not exceed (array size - 1) */
94 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
95 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
101 * Convert the given index of the bucket array to the value
102 * represented by the bucket
104 static unsigned long long plat_idx_to_val(unsigned int idx)
106 unsigned int error_bits;
107 unsigned long long k, base;
109 assert(idx < FIO_IO_U_PLAT_NR);
111 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
112 * all bits of the sample as index */
113 if (idx < (FIO_IO_U_PLAT_VAL << 1))
116 /* Find the group and compute the minimum value of that group */
117 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
118 base = ((unsigned long long) 1) << (error_bits + FIO_IO_U_PLAT_BITS);
120 /* Find its bucket number of the group */
121 k = idx % FIO_IO_U_PLAT_VAL;
123 /* Return the mean of the range of the bucket */
124 return base + ((k + 0.5) * (1 << error_bits));
127 static int double_cmp(const void *a, const void *b)
129 const fio_fp64_t fa = *(const fio_fp64_t *) a;
130 const fio_fp64_t fb = *(const fio_fp64_t *) b;
135 else if (fa.u.f < fb.u.f)
141 unsigned int calc_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
142 fio_fp64_t *plist, unsigned long long **output,
143 unsigned long long *maxv, unsigned long long *minv)
145 unsigned long long sum = 0;
146 unsigned int len, i, j = 0;
147 unsigned long long *ovals = NULL;
154 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
161 * Sort the percentile list. Note that it may already be sorted if
162 * we are using the default values, but since it's a short list this
163 * isn't a worry. Also note that this does not work for NaN values.
166 qsort(plist, len, sizeof(plist[0]), double_cmp);
168 ovals = malloc(len * sizeof(*ovals));
173 * Calculate bucket values, note down max and min values
176 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
178 while (sum >= ((long double) plist[j].u.f / 100.0 * nr)) {
179 assert(plist[j].u.f <= 100.0);
181 ovals[j] = plat_idx_to_val(i);
182 if (ovals[j] < *minv)
184 if (ovals[j] > *maxv)
187 is_last = (j == len - 1) != 0;
196 log_err("fio: error calculating latency percentiles\n");
203 * Find and display the p-th percentile of clat
205 static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
206 fio_fp64_t *plist, unsigned int precision,
207 const char *pre, struct buf_output *out)
209 unsigned int divisor, len, i, j = 0;
210 unsigned long long minv, maxv;
211 unsigned long long *ovals;
212 int per_line, scale_down, time_width;
216 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
221 * We default to nsecs, but if the value range is such that we
222 * should scale down to usecs or msecs, do that.
224 if (minv > 2000000 && maxv > 99999999ULL) {
227 log_buf(out, " %s percentiles (msec):\n |", pre);
228 } else if (minv > 2000 && maxv > 99999) {
231 log_buf(out, " %s percentiles (usec):\n |", pre);
235 log_buf(out, " %s percentiles (nsec):\n |", pre);
239 time_width = max(5, (int) (log10(maxv / divisor) + 1));
240 snprintf(fmt, sizeof(fmt), " %%%u.%ufth=[%%%dllu]%%c", precision + 3,
241 precision, time_width);
242 /* fmt will be something like " %5.2fth=[%4llu]%c" */
243 per_line = (80 - 7) / (precision + 10 + time_width);
245 for (j = 0; j < len; j++) {
247 if (j != 0 && (j % per_line) == 0)
250 /* end of the list */
251 is_last = (j == len - 1) != 0;
253 for (i = 0; i < scale_down; i++)
254 ovals[j] = (ovals[j] + 999) / 1000;
256 log_buf(out, fmt, plist[j].u.f, ovals[j], is_last ? '\n' : ',');
261 if ((j % per_line) == per_line - 1) /* for formatting */
268 bool calc_lat(struct io_stat *is, unsigned long long *min,
269 unsigned long long *max, double *mean, double *dev)
271 double n = (double) is->samples;
278 *mean = is->mean.u.f;
281 *dev = sqrt(is->S.u.f / (n - 1.0));
288 void show_mixed_group_stats(struct group_run_stats *rs, struct buf_output *out)
290 char *io, *agg, *min, *max;
291 char *ioalt, *aggalt, *minalt, *maxalt;
292 uint64_t io_mix = 0, agg_mix = 0, min_mix = -1, max_mix = 0, min_run = -1, max_run = 0;
294 const int i2p = is_power_of_2(rs->kb_base);
296 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
299 io_mix += rs->iobytes[i];
300 agg_mix += rs->agg[i];
301 min_mix = min_mix < rs->min_bw[i] ? min_mix : rs->min_bw[i];
302 max_mix = max_mix > rs->max_bw[i] ? max_mix : rs->max_bw[i];
303 min_run = min_run < rs->min_run[i] ? min_run : rs->min_run[i];
304 max_run = max_run > rs->max_run[i] ? max_run : rs->max_run[i];
306 io = num2str(io_mix, rs->sig_figs, 1, i2p, N2S_BYTE);
307 ioalt = num2str(io_mix, rs->sig_figs, 1, !i2p, N2S_BYTE);
308 agg = num2str(agg_mix, rs->sig_figs, 1, i2p, rs->unit_base);
309 aggalt = num2str(agg_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
310 min = num2str(min_mix, rs->sig_figs, 1, i2p, rs->unit_base);
311 minalt = num2str(min_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
312 max = num2str(max_mix, rs->sig_figs, 1, i2p, rs->unit_base);
313 maxalt = num2str(max_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
314 log_buf(out, " MIXED: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
315 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
316 (unsigned long long) min_run,
317 (unsigned long long) max_run);
328 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
330 char *io, *agg, *min, *max;
331 char *ioalt, *aggalt, *minalt, *maxalt;
332 const char *str[] = { " READ", " WRITE" , " TRIM"};
335 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
337 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
338 const int i2p = is_power_of_2(rs->kb_base);
343 io = num2str(rs->iobytes[i], rs->sig_figs, 1, i2p, N2S_BYTE);
344 ioalt = num2str(rs->iobytes[i], rs->sig_figs, 1, !i2p, N2S_BYTE);
345 agg = num2str(rs->agg[i], rs->sig_figs, 1, i2p, rs->unit_base);
346 aggalt = num2str(rs->agg[i], rs->sig_figs, 1, !i2p, rs->unit_base);
347 min = num2str(rs->min_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
348 minalt = num2str(rs->min_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
349 max = num2str(rs->max_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
350 maxalt = num2str(rs->max_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
351 log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
352 (rs->unified_rw_rep == UNIFIED_MIXED) ? " MIXED" : str[i],
353 agg, aggalt, min, max, minalt, maxalt, io, ioalt,
354 (unsigned long long) rs->min_run[i],
355 (unsigned long long) rs->max_run[i]);
367 /* Need to aggregate statisitics to show mixed values */
368 if (rs->unified_rw_rep == UNIFIED_BOTH)
369 show_mixed_group_stats(rs, out);
372 void stat_calc_dist(uint64_t *map, unsigned long total, double *io_u_dist)
377 * Do depth distribution calculations
379 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
381 io_u_dist[i] = (double) map[i] / (double) total;
382 io_u_dist[i] *= 100.0;
383 if (io_u_dist[i] < 0.1 && map[i])
390 static void stat_calc_lat(struct thread_stat *ts, double *dst,
391 uint64_t *src, int nr)
393 unsigned long total = ddir_rw_sum(ts->total_io_u);
397 * Do latency distribution calculations
399 for (i = 0; i < nr; i++) {
401 dst[i] = (double) src[i] / (double) total;
403 if (dst[i] < 0.01 && src[i])
411 * To keep the terse format unaltered, add all of the ns latency
412 * buckets to the first us latency bucket
414 static void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
416 unsigned long ntotal = 0, total = ddir_rw_sum(ts->total_io_u);
419 stat_calc_lat(ts, io_u_lat_u, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
421 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
422 ntotal += ts->io_u_lat_n[i];
424 io_u_lat_u[0] += 100.0 * (double) ntotal / (double) total;
427 void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat)
429 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_n, FIO_IO_U_LAT_N_NR);
432 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
434 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
437 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
439 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
442 static void display_lat(const char *name, unsigned long long min,
443 unsigned long long max, double mean, double dev,
444 struct buf_output *out)
446 const char *base = "(nsec)";
449 if (nsec_to_msec(&min, &max, &mean, &dev))
451 else if (nsec_to_usec(&min, &max, &mean, &dev))
454 minp = num2str(min, 6, 1, 0, N2S_NONE);
455 maxp = num2str(max, 6, 1, 0, N2S_NONE);
457 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
458 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
464 static double convert_agg_kbytes_percent(struct group_run_stats *rs, int ddir, int mean)
466 double p_of_agg = 100.0;
467 if (rs && rs->agg[ddir] > 1024) {
468 p_of_agg = mean * 100.0 / (double) (rs->agg[ddir] / 1024.0);
470 if (p_of_agg > 100.0)
476 static void show_mixed_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
477 struct buf_output *out)
480 unsigned long long min, max, bw, iops;
482 char *io_p, *bw_p, *bw_p_alt, *iops_p, *post_st = NULL;
483 struct thread_stat *ts_lcl;
488 /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
489 ts_lcl = malloc(sizeof(struct thread_stat));
490 memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
491 ts_lcl->unified_rw_rep = UNIFIED_MIXED; /* calculate mixed stats */
492 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
493 ts_lcl->clat_stat[i].min_val = ULONG_MAX;
494 ts_lcl->slat_stat[i].min_val = ULONG_MAX;
495 ts_lcl->lat_stat[i].min_val = ULONG_MAX;
496 ts_lcl->bw_stat[i].min_val = ULONG_MAX;
497 ts_lcl->iops_stat[i].min_val = ULONG_MAX;
498 ts_lcl->clat_high_prio_stat[i].min_val = ULONG_MAX;
499 ts_lcl->clat_low_prio_stat[i].min_val = ULONG_MAX;
501 ts_lcl->sync_stat.min_val = ULONG_MAX;
503 sum_thread_stats(ts_lcl, ts, 1);
505 assert(ddir_rw(ddir));
507 if (!ts_lcl->runtime[ddir])
510 i2p = is_power_of_2(rs->kb_base);
511 runt = ts_lcl->runtime[ddir];
513 bw = (1000 * ts_lcl->io_bytes[ddir]) / runt;
514 io_p = num2str(ts_lcl->io_bytes[ddir], ts->sig_figs, 1, i2p, N2S_BYTE);
515 bw_p = num2str(bw, ts->sig_figs, 1, i2p, ts->unit_base);
516 bw_p_alt = num2str(bw, ts->sig_figs, 1, !i2p, ts->unit_base);
518 iops = (1000 * ts_lcl->total_io_u[ddir]) / runt;
519 iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
521 log_buf(out, " mixed: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
522 iops_p, bw_p, bw_p_alt, io_p,
523 (unsigned long long) ts_lcl->runtime[ddir],
532 if (calc_lat(&ts_lcl->slat_stat[ddir], &min, &max, &mean, &dev))
533 display_lat("slat", min, max, mean, dev, out);
534 if (calc_lat(&ts_lcl->clat_stat[ddir], &min, &max, &mean, &dev))
535 display_lat("clat", min, max, mean, dev, out);
536 if (calc_lat(&ts_lcl->lat_stat[ddir], &min, &max, &mean, &dev))
537 display_lat(" lat", min, max, mean, dev, out);
538 if (calc_lat(&ts_lcl->clat_high_prio_stat[ddir], &min, &max, &mean, &dev)) {
539 display_lat(ts_lcl->lat_percentiles ? "high prio_lat" : "high prio_clat",
540 min, max, mean, dev, out);
541 if (calc_lat(&ts_lcl->clat_low_prio_stat[ddir], &min, &max, &mean, &dev))
542 display_lat(ts_lcl->lat_percentiles ? "low prio_lat" : "low prio_clat",
543 min, max, mean, dev, out);
546 if (ts->slat_percentiles && ts_lcl->slat_stat[ddir].samples > 0)
547 show_clat_percentiles(ts_lcl->io_u_plat[FIO_SLAT][ddir],
548 ts_lcl->slat_stat[ddir].samples,
550 ts->percentile_precision, "slat", out);
551 if (ts->clat_percentiles && ts_lcl->clat_stat[ddir].samples > 0)
552 show_clat_percentiles(ts_lcl->io_u_plat[FIO_CLAT][ddir],
553 ts_lcl->clat_stat[ddir].samples,
555 ts->percentile_precision, "clat", out);
556 if (ts->lat_percentiles && ts_lcl->lat_stat[ddir].samples > 0)
557 show_clat_percentiles(ts_lcl->io_u_plat[FIO_LAT][ddir],
558 ts_lcl->lat_stat[ddir].samples,
560 ts->percentile_precision, "lat", out);
562 if (ts->clat_percentiles || ts->lat_percentiles) {
563 const char *name = ts->lat_percentiles ? "lat" : "clat";
567 if (ts->lat_percentiles)
568 samples = ts_lcl->lat_stat[ddir].samples;
570 samples = ts_lcl->clat_stat[ddir].samples;
572 /* Only print this if some high and low priority stats were collected */
573 if (ts_lcl->clat_high_prio_stat[ddir].samples > 0 &&
574 ts_lcl->clat_low_prio_stat[ddir].samples > 0)
576 sprintf(prio_name, "high prio (%.2f%%) %s",
577 100. * (double) ts_lcl->clat_high_prio_stat[ddir].samples / (double) samples,
579 show_clat_percentiles(ts_lcl->io_u_plat_high_prio[ddir],
580 ts_lcl->clat_high_prio_stat[ddir].samples,
582 ts->percentile_precision, prio_name, out);
584 sprintf(prio_name, "low prio (%.2f%%) %s",
585 100. * (double) ts_lcl->clat_low_prio_stat[ddir].samples / (double) samples,
587 show_clat_percentiles(ts_lcl->io_u_plat_low_prio[ddir],
588 ts_lcl->clat_low_prio_stat[ddir].samples,
590 ts->percentile_precision, prio_name, out);
594 if (calc_lat(&ts_lcl->bw_stat[ddir], &min, &max, &mean, &dev)) {
595 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
598 if ((rs->unit_base == 1) && i2p)
600 else if (rs->unit_base == 1)
607 p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
609 if (rs->unit_base == 1) {
616 if (mean > fkb_base * fkb_base) {
621 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
624 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
625 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
626 bw_str, min, max, p_of_agg, mean, dev,
627 (&ts_lcl->bw_stat[ddir])->samples);
629 if (calc_lat(&ts_lcl->iops_stat[ddir], &min, &max, &mean, &dev)) {
630 log_buf(out, " iops : min=%5llu, max=%5llu, "
631 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
632 min, max, mean, dev, (&ts_lcl->iops_stat[ddir])->samples);
638 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
639 int ddir, struct buf_output *out)
642 unsigned long long min, max, bw, iops;
644 char *io_p, *bw_p, *bw_p_alt, *iops_p, *post_st = NULL;
647 if (ddir_sync(ddir)) {
648 if (calc_lat(&ts->sync_stat, &min, &max, &mean, &dev)) {
649 log_buf(out, " %s:\n", "fsync/fdatasync/sync_file_range");
650 display_lat(io_ddir_name(ddir), min, max, mean, dev, out);
651 show_clat_percentiles(ts->io_u_sync_plat,
652 ts->sync_stat.samples,
654 ts->percentile_precision,
655 io_ddir_name(ddir), out);
660 assert(ddir_rw(ddir));
662 if (!ts->runtime[ddir])
665 i2p = is_power_of_2(rs->kb_base);
666 runt = ts->runtime[ddir];
668 bw = (1000 * ts->io_bytes[ddir]) / runt;
669 io_p = num2str(ts->io_bytes[ddir], ts->sig_figs, 1, i2p, N2S_BYTE);
670 bw_p = num2str(bw, ts->sig_figs, 1, i2p, ts->unit_base);
671 bw_p_alt = num2str(bw, ts->sig_figs, 1, !i2p, ts->unit_base);
673 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
674 iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
675 if (ddir == DDIR_WRITE)
676 post_st = zbd_write_status(ts);
677 else if (ddir == DDIR_READ && ts->cachehit && ts->cachemiss) {
681 total = ts->cachehit + ts->cachemiss;
682 hit = (double) ts->cachehit / (double) total;
684 if (asprintf(&post_st, "; Cachehit=%0.2f%%", hit) < 0)
688 log_buf(out, " %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
689 (ts->unified_rw_rep == UNIFIED_MIXED) ? "mixed" : io_ddir_name(ddir),
690 iops_p, bw_p, bw_p_alt, io_p,
691 (unsigned long long) ts->runtime[ddir],
700 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
701 display_lat("slat", min, max, mean, dev, out);
702 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
703 display_lat("clat", min, max, mean, dev, out);
704 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
705 display_lat(" lat", min, max, mean, dev, out);
706 if (calc_lat(&ts->clat_high_prio_stat[ddir], &min, &max, &mean, &dev)) {
707 display_lat(ts->lat_percentiles ? "high prio_lat" : "high prio_clat",
708 min, max, mean, dev, out);
709 if (calc_lat(&ts->clat_low_prio_stat[ddir], &min, &max, &mean, &dev))
710 display_lat(ts->lat_percentiles ? "low prio_lat" : "low prio_clat",
711 min, max, mean, dev, out);
714 if (ts->slat_percentiles && ts->slat_stat[ddir].samples > 0)
715 show_clat_percentiles(ts->io_u_plat[FIO_SLAT][ddir],
716 ts->slat_stat[ddir].samples,
718 ts->percentile_precision, "slat", out);
719 if (ts->clat_percentiles && ts->clat_stat[ddir].samples > 0)
720 show_clat_percentiles(ts->io_u_plat[FIO_CLAT][ddir],
721 ts->clat_stat[ddir].samples,
723 ts->percentile_precision, "clat", out);
724 if (ts->lat_percentiles && ts->lat_stat[ddir].samples > 0)
725 show_clat_percentiles(ts->io_u_plat[FIO_LAT][ddir],
726 ts->lat_stat[ddir].samples,
728 ts->percentile_precision, "lat", out);
730 if (ts->clat_percentiles || ts->lat_percentiles) {
731 const char *name = ts->lat_percentiles ? "lat" : "clat";
735 if (ts->lat_percentiles)
736 samples = ts->lat_stat[ddir].samples;
738 samples = ts->clat_stat[ddir].samples;
740 /* Only print this if some high and low priority stats were collected */
741 if (ts->clat_high_prio_stat[ddir].samples > 0 &&
742 ts->clat_low_prio_stat[ddir].samples > 0)
744 sprintf(prio_name, "high prio (%.2f%%) %s",
745 100. * (double) ts->clat_high_prio_stat[ddir].samples / (double) samples,
747 show_clat_percentiles(ts->io_u_plat_high_prio[ddir],
748 ts->clat_high_prio_stat[ddir].samples,
750 ts->percentile_precision, prio_name, out);
752 sprintf(prio_name, "low prio (%.2f%%) %s",
753 100. * (double) ts->clat_low_prio_stat[ddir].samples / (double) samples,
755 show_clat_percentiles(ts->io_u_plat_low_prio[ddir],
756 ts->clat_low_prio_stat[ddir].samples,
758 ts->percentile_precision, prio_name, out);
762 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
763 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
766 if ((rs->unit_base == 1) && i2p)
768 else if (rs->unit_base == 1)
775 p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
777 if (rs->unit_base == 1) {
784 if (mean > fkb_base * fkb_base) {
789 bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
792 log_buf(out, " bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
793 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
794 bw_str, min, max, p_of_agg, mean, dev,
795 (&ts->bw_stat[ddir])->samples);
797 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
798 log_buf(out, " iops : min=%5llu, max=%5llu, "
799 "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
800 min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
804 static bool show_lat(double *io_u_lat, int nr, const char **ranges,
805 const char *msg, struct buf_output *out)
807 bool new_line = true, shown = false;
810 for (i = 0; i < nr; i++) {
811 if (io_u_lat[i] <= 0.0)
817 log_buf(out, " lat (%s) : ", msg);
823 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
835 static void show_lat_n(double *io_u_lat_n, struct buf_output *out)
837 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
838 "250=", "500=", "750=", "1000=", };
840 show_lat(io_u_lat_n, FIO_IO_U_LAT_N_NR, ranges, "nsec", out);
843 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
845 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
846 "250=", "500=", "750=", "1000=", };
848 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
851 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
853 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
854 "250=", "500=", "750=", "1000=", "2000=",
857 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
860 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
862 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
863 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
864 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
866 stat_calc_lat_n(ts, io_u_lat_n);
867 stat_calc_lat_u(ts, io_u_lat_u);
868 stat_calc_lat_m(ts, io_u_lat_m);
870 show_lat_n(io_u_lat_n, out);
871 show_lat_u(io_u_lat_u, out);
872 show_lat_m(io_u_lat_m, out);
875 static int block_state_category(int block_state)
877 switch (block_state) {
878 case BLOCK_STATE_UNINIT:
880 case BLOCK_STATE_TRIMMED:
881 case BLOCK_STATE_WRITTEN:
883 case BLOCK_STATE_WRITE_FAILURE:
884 case BLOCK_STATE_TRIM_FAILURE:
887 /* Silence compile warning on some BSDs and have a return */
893 static int compare_block_infos(const void *bs1, const void *bs2)
895 uint64_t block1 = *(uint64_t *)bs1;
896 uint64_t block2 = *(uint64_t *)bs2;
897 int state1 = BLOCK_INFO_STATE(block1);
898 int state2 = BLOCK_INFO_STATE(block2);
899 int bscat1 = block_state_category(state1);
900 int bscat2 = block_state_category(state2);
901 int cycles1 = BLOCK_INFO_TRIMS(block1);
902 int cycles2 = BLOCK_INFO_TRIMS(block2);
909 if (cycles1 < cycles2)
911 if (cycles1 > cycles2)
919 assert(block1 == block2);
923 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
924 fio_fp64_t *plist, unsigned int **percentiles,
930 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
932 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
939 * Sort the percentile list. Note that it may already be sorted if
940 * we are using the default values, but since it's a short list this
941 * isn't a worry. Also note that this does not work for NaN values.
944 qsort(plist, len, sizeof(plist[0]), double_cmp);
946 /* Start only after the uninit entries end */
948 nr_uninit < nr_block_infos
949 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
953 if (nr_uninit == nr_block_infos)
956 *percentiles = calloc(len, sizeof(**percentiles));
958 for (i = 0; i < len; i++) {
959 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
961 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
964 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
965 for (i = 0; i < nr_block_infos; i++)
966 types[BLOCK_INFO_STATE(block_infos[i])]++;
971 static const char *block_state_names[] = {
972 [BLOCK_STATE_UNINIT] = "unwritten",
973 [BLOCK_STATE_TRIMMED] = "trimmed",
974 [BLOCK_STATE_WRITTEN] = "written",
975 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
976 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
979 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
980 fio_fp64_t *plist, struct buf_output *out)
983 unsigned int *percentiles = NULL;
984 unsigned int block_state_counts[BLOCK_STATE_COUNT];
986 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
987 &percentiles, block_state_counts);
989 log_buf(out, " block lifetime percentiles :\n |");
991 for (i = 0; i < len; i++) {
992 uint32_t block_info = percentiles[i];
993 #define LINE_LENGTH 75
994 char str[LINE_LENGTH];
995 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
996 plist[i].u.f, block_info,
997 i == len - 1 ? '\n' : ',');
998 assert(strln < LINE_LENGTH);
999 if (pos + strln > LINE_LENGTH) {
1001 log_buf(out, "\n |");
1003 log_buf(out, "%s", str);
1010 log_buf(out, " states :");
1011 for (i = 0; i < BLOCK_STATE_COUNT; i++)
1012 log_buf(out, " %s=%u%c",
1013 block_state_names[i], block_state_counts[i],
1014 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
1017 static void show_ss_normal(struct thread_stat *ts, struct buf_output *out)
1019 char *p1, *p1alt, *p2;
1020 unsigned long long bw_mean, iops_mean;
1021 const int i2p = is_power_of_2(ts->kb_base);
1026 bw_mean = steadystate_bw_mean(ts);
1027 iops_mean = steadystate_iops_mean(ts);
1029 p1 = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, i2p, ts->unit_base);
1030 p1alt = num2str(bw_mean / ts->kb_base, ts->sig_figs, ts->kb_base, !i2p, ts->unit_base);
1031 p2 = num2str(iops_mean, ts->sig_figs, 1, 0, N2S_NONE);
1033 log_buf(out, " steadystate : attained=%s, bw=%s (%s), iops=%s, %s%s=%.3f%s\n",
1034 ts->ss_state & FIO_SS_ATTAINED ? "yes" : "no",
1036 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
1037 ts->ss_state & FIO_SS_SLOPE ? " slope": " mean dev",
1038 ts->ss_criterion.u.f,
1039 ts->ss_state & FIO_SS_PCT ? "%" : "");
1046 static void show_agg_stats(struct disk_util_agg *agg, int terse,
1047 struct buf_output *out)
1049 if (!agg->slavecount)
1053 log_buf(out, ", aggrios=%llu/%llu, aggrmerge=%llu/%llu, "
1054 "aggrticks=%llu/%llu, aggrin_queue=%llu, "
1056 (unsigned long long) agg->ios[0] / agg->slavecount,
1057 (unsigned long long) agg->ios[1] / agg->slavecount,
1058 (unsigned long long) agg->merges[0] / agg->slavecount,
1059 (unsigned long long) agg->merges[1] / agg->slavecount,
1060 (unsigned long long) agg->ticks[0] / agg->slavecount,
1061 (unsigned long long) agg->ticks[1] / agg->slavecount,
1062 (unsigned long long) agg->time_in_queue / agg->slavecount,
1065 log_buf(out, ";slaves;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%",
1066 (unsigned long long) agg->ios[0] / agg->slavecount,
1067 (unsigned long long) agg->ios[1] / agg->slavecount,
1068 (unsigned long long) agg->merges[0] / agg->slavecount,
1069 (unsigned long long) agg->merges[1] / agg->slavecount,
1070 (unsigned long long) agg->ticks[0] / agg->slavecount,
1071 (unsigned long long) agg->ticks[1] / agg->slavecount,
1072 (unsigned long long) agg->time_in_queue / agg->slavecount,
1077 static void aggregate_slaves_stats(struct disk_util *masterdu)
1079 struct disk_util_agg *agg = &masterdu->agg;
1080 struct disk_util_stat *dus;
1081 struct flist_head *entry;
1082 struct disk_util *slavedu;
1085 flist_for_each(entry, &masterdu->slaves) {
1086 slavedu = flist_entry(entry, struct disk_util, slavelist);
1087 dus = &slavedu->dus;
1088 agg->ios[0] += dus->s.ios[0];
1089 agg->ios[1] += dus->s.ios[1];
1090 agg->merges[0] += dus->s.merges[0];
1091 agg->merges[1] += dus->s.merges[1];
1092 agg->sectors[0] += dus->s.sectors[0];
1093 agg->sectors[1] += dus->s.sectors[1];
1094 agg->ticks[0] += dus->s.ticks[0];
1095 agg->ticks[1] += dus->s.ticks[1];
1096 agg->time_in_queue += dus->s.time_in_queue;
1099 util = (double) (100 * dus->s.io_ticks / (double) slavedu->dus.s.msec);
1100 /* System utilization is the utilization of the
1101 * component with the highest utilization.
1103 if (util > agg->max_util.u.f)
1104 agg->max_util.u.f = util;
1108 if (agg->max_util.u.f > 100.0)
1109 agg->max_util.u.f = 100.0;
1112 void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg,
1113 int terse, struct buf_output *out)
1118 util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec;
1123 if (agg->slavecount)
1126 log_buf(out, " %s: ios=%llu/%llu, merge=%llu/%llu, "
1127 "ticks=%llu/%llu, in_queue=%llu, util=%3.2f%%",
1129 (unsigned long long) dus->s.ios[0],
1130 (unsigned long long) dus->s.ios[1],
1131 (unsigned long long) dus->s.merges[0],
1132 (unsigned long long) dus->s.merges[1],
1133 (unsigned long long) dus->s.ticks[0],
1134 (unsigned long long) dus->s.ticks[1],
1135 (unsigned long long) dus->s.time_in_queue,
1138 log_buf(out, ";%s;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%",
1140 (unsigned long long) dus->s.ios[0],
1141 (unsigned long long) dus->s.ios[1],
1142 (unsigned long long) dus->s.merges[0],
1143 (unsigned long long) dus->s.merges[1],
1144 (unsigned long long) dus->s.ticks[0],
1145 (unsigned long long) dus->s.ticks[1],
1146 (unsigned long long) dus->s.time_in_queue,
1151 * If the device has slaves, aggregate the stats for
1152 * those slave devices also.
1154 show_agg_stats(agg, terse, out);
1160 void json_array_add_disk_util(struct disk_util_stat *dus,
1161 struct disk_util_agg *agg, struct json_array *array)
1163 struct json_object *obj;
1167 util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec;
1171 obj = json_create_object();
1172 json_array_add_value_object(array, obj);
1174 json_object_add_value_string(obj, "name", (const char *)dus->name);
1175 json_object_add_value_int(obj, "read_ios", dus->s.ios[0]);
1176 json_object_add_value_int(obj, "write_ios", dus->s.ios[1]);
1177 json_object_add_value_int(obj, "read_merges", dus->s.merges[0]);
1178 json_object_add_value_int(obj, "write_merges", dus->s.merges[1]);
1179 json_object_add_value_int(obj, "read_ticks", dus->s.ticks[0]);
1180 json_object_add_value_int(obj, "write_ticks", dus->s.ticks[1]);
1181 json_object_add_value_int(obj, "in_queue", dus->s.time_in_queue);
1182 json_object_add_value_float(obj, "util", util);
1185 * If the device has slaves, aggregate the stats for
1186 * those slave devices also.
1188 if (!agg->slavecount)
1190 json_object_add_value_int(obj, "aggr_read_ios",
1191 agg->ios[0] / agg->slavecount);
1192 json_object_add_value_int(obj, "aggr_write_ios",
1193 agg->ios[1] / agg->slavecount);
1194 json_object_add_value_int(obj, "aggr_read_merges",
1195 agg->merges[0] / agg->slavecount);
1196 json_object_add_value_int(obj, "aggr_write_merge",
1197 agg->merges[1] / agg->slavecount);
1198 json_object_add_value_int(obj, "aggr_read_ticks",
1199 agg->ticks[0] / agg->slavecount);
1200 json_object_add_value_int(obj, "aggr_write_ticks",
1201 agg->ticks[1] / agg->slavecount);
1202 json_object_add_value_int(obj, "aggr_in_queue",
1203 agg->time_in_queue / agg->slavecount);
1204 json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f);
1207 static void json_object_add_disk_utils(struct json_object *obj,
1208 struct flist_head *head)
1210 struct json_array *array = json_create_array();
1211 struct flist_head *entry;
1212 struct disk_util *du;
1214 json_object_add_value_array(obj, "disk_util", array);
1216 flist_for_each(entry, head) {
1217 du = flist_entry(entry, struct disk_util, list);
1219 aggregate_slaves_stats(du);
1220 json_array_add_disk_util(&du->dus, &du->agg, array);
1224 void show_disk_util(int terse, struct json_object *parent,
1225 struct buf_output *out)
1227 struct flist_head *entry;
1228 struct disk_util *du;
1231 if (!is_running_backend())
1234 if (flist_empty(&disk_list)) {
1238 if ((output_format & FIO_OUTPUT_JSON) && parent)
1243 if (!terse && !do_json)
1244 log_buf(out, "\nDisk stats (read/write):\n");
1247 json_object_add_disk_utils(parent, &disk_list);
1248 else if (output_format & ~(FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS)) {
1249 flist_for_each(entry, &disk_list) {
1250 du = flist_entry(entry, struct disk_util, list);
1252 aggregate_slaves_stats(du);
1253 print_disk_util(&du->dus, &du->agg, terse, out);
1258 static void show_thread_status_normal(struct thread_stat *ts,
1259 struct group_run_stats *rs,
1260 struct buf_output *out)
1262 double usr_cpu, sys_cpu;
1263 unsigned long runtime;
1264 double io_u_dist[FIO_IO_U_MAP_NR];
1268 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
1271 memset(time_buf, 0, sizeof(time_buf));
1274 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
1277 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
1278 ts->name, ts->groupid, ts->members,
1279 ts->error, (int) ts->pid, time_buf);
1281 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
1282 ts->name, ts->groupid, ts->members,
1283 ts->error, ts->verror, (int) ts->pid,
1287 if (strlen(ts->description))
1288 log_buf(out, " Description : [%s]\n", ts->description);
1290 for_each_rw_ddir(ddir) {
1291 if (ts->io_bytes[ddir])
1292 show_ddir_status(rs, ts, ddir, out);
1295 if (ts->unified_rw_rep == UNIFIED_BOTH)
1296 show_mixed_ddir_status(rs, ts, out);
1298 show_latencies(ts, out);
1300 if (ts->sync_stat.samples)
1301 show_ddir_status(rs, ts, DDIR_SYNC, out);
1303 runtime = ts->total_run_time;
1305 double runt = (double) runtime;
1307 usr_cpu = (double) ts->usr_time * 100 / runt;
1308 sys_cpu = (double) ts->sys_time * 100 / runt;
1314 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
1315 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
1316 (unsigned long long) ts->ctx,
1317 (unsigned long long) ts->majf,
1318 (unsigned long long) ts->minf);
1320 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1321 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
1322 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
1323 io_u_dist[1], io_u_dist[2],
1324 io_u_dist[3], io_u_dist[4],
1325 io_u_dist[5], io_u_dist[6]);
1327 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
1328 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
1329 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
1330 io_u_dist[1], io_u_dist[2],
1331 io_u_dist[3], io_u_dist[4],
1332 io_u_dist[5], io_u_dist[6]);
1333 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
1334 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
1335 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
1336 io_u_dist[1], io_u_dist[2],
1337 io_u_dist[3], io_u_dist[4],
1338 io_u_dist[5], io_u_dist[6]);
1339 log_buf(out, " issued rwts: total=%llu,%llu,%llu,%llu"
1340 " short=%llu,%llu,%llu,0"
1341 " dropped=%llu,%llu,%llu,0\n",
1342 (unsigned long long) ts->total_io_u[0],
1343 (unsigned long long) ts->total_io_u[1],
1344 (unsigned long long) ts->total_io_u[2],
1345 (unsigned long long) ts->total_io_u[3],
1346 (unsigned long long) ts->short_io_u[0],
1347 (unsigned long long) ts->short_io_u[1],
1348 (unsigned long long) ts->short_io_u[2],
1349 (unsigned long long) ts->drop_io_u[0],
1350 (unsigned long long) ts->drop_io_u[1],
1351 (unsigned long long) ts->drop_io_u[2]);
1352 if (ts->continue_on_error) {
1353 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
1354 (unsigned long long)ts->total_err_count,
1356 strerror(ts->first_error));
1358 if (ts->latency_depth) {
1359 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
1360 (unsigned long long)ts->latency_target,
1361 (unsigned long long)ts->latency_window,
1362 ts->latency_percentile.u.f,
1366 if (ts->nr_block_infos)
1367 show_block_infos(ts->nr_block_infos, ts->block_infos,
1368 ts->percentile_list, out);
1371 show_ss_normal(ts, out);
1374 static void show_ddir_status_terse(struct thread_stat *ts,
1375 struct group_run_stats *rs, int ddir,
1376 int ver, struct buf_output *out)
1378 unsigned long long min, max, minv, maxv, bw, iops;
1379 unsigned long long *ovals = NULL;
1384 assert(ddir_rw(ddir));
1387 if (ts->runtime[ddir]) {
1388 uint64_t runt = ts->runtime[ddir];
1390 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; /* KiB/s */
1391 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
1394 log_buf(out, ";%llu;%llu;%llu;%llu",
1395 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
1396 (unsigned long long) ts->runtime[ddir]);
1398 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
1399 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
1401 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
1403 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
1404 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
1406 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
1408 if (ts->lat_percentiles)
1409 len = calc_clat_percentiles(ts->io_u_plat[FIO_LAT][ddir],
1410 ts->lat_stat[ddir].samples,
1411 ts->percentile_list, &ovals, &maxv,
1413 else if (ts->clat_percentiles)
1414 len = calc_clat_percentiles(ts->io_u_plat[FIO_CLAT][ddir],
1415 ts->clat_stat[ddir].samples,
1416 ts->percentile_list, &ovals, &maxv,
1421 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1423 log_buf(out, ";0%%=0");
1426 log_buf(out, ";%f%%=%llu", ts->percentile_list[i].u.f, ovals[i]/1000);
1429 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
1430 log_buf(out, ";%llu;%llu;%f;%f", min/1000, max/1000, mean/1000, dev/1000);
1432 log_buf(out, ";%llu;%llu;%f;%f", 0ULL, 0ULL, 0.0, 0.0);
1436 bw_stat = calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev);
1438 double p_of_agg = 100.0;
1440 if (rs->agg[ddir]) {
1441 p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
1442 if (p_of_agg > 100.0)
1446 log_buf(out, ";%llu;%llu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
1448 log_buf(out, ";%llu;%llu;%f%%;%f;%f", 0ULL, 0ULL, 0.0, 0.0, 0.0);
1452 log_buf(out, ";%" PRIu64, (&ts->bw_stat[ddir])->samples);
1454 log_buf(out, ";%lu", 0UL);
1456 if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev))
1457 log_buf(out, ";%llu;%llu;%f;%f;%" PRIu64, min, max,
1458 mean, dev, (&ts->iops_stat[ddir])->samples);
1460 log_buf(out, ";%llu;%llu;%f;%f;%lu", 0ULL, 0ULL, 0.0, 0.0, 0UL);
1464 static void show_mixed_ddir_status_terse(struct thread_stat *ts,
1465 struct group_run_stats *rs,
1466 int ver, struct buf_output *out)
1468 struct thread_stat *ts_lcl;
1471 /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
1472 ts_lcl = malloc(sizeof(struct thread_stat));
1473 memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
1474 ts_lcl->unified_rw_rep = UNIFIED_MIXED; /* calculate mixed stats */
1475 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1476 ts_lcl->clat_stat[i].min_val = ULONG_MAX;
1477 ts_lcl->slat_stat[i].min_val = ULONG_MAX;
1478 ts_lcl->lat_stat[i].min_val = ULONG_MAX;
1479 ts_lcl->bw_stat[i].min_val = ULONG_MAX;
1480 ts_lcl->iops_stat[i].min_val = ULONG_MAX;
1481 ts_lcl->clat_high_prio_stat[i].min_val = ULONG_MAX;
1482 ts_lcl->clat_low_prio_stat[i].min_val = ULONG_MAX;
1484 ts_lcl->sync_stat.min_val = ULONG_MAX;
1485 ts_lcl->lat_percentiles = ts->lat_percentiles;
1486 ts_lcl->clat_percentiles = ts->clat_percentiles;
1487 ts_lcl->slat_percentiles = ts->slat_percentiles;
1488 ts_lcl->percentile_precision = ts->percentile_precision;
1489 memcpy(ts_lcl->percentile_list, ts->percentile_list, sizeof(ts->percentile_list));
1491 sum_thread_stats(ts_lcl, ts, 1);
1493 /* add the aggregated stats to json parent */
1494 show_ddir_status_terse(ts_lcl, rs, DDIR_READ, ver, out);
1498 static struct json_object *add_ddir_lat_json(struct thread_stat *ts, uint32_t percentiles,
1499 struct io_stat *lat_stat, uint64_t *io_u_plat)
1503 unsigned int i, len;
1504 struct json_object *lat_object, *percentile_object, *clat_bins_object;
1505 unsigned long long min, max, maxv, minv, *ovals = NULL;
1507 if (!calc_lat(lat_stat, &min, &max, &mean, &dev)) {
1511 lat_object = json_create_object();
1512 json_object_add_value_int(lat_object, "min", min);
1513 json_object_add_value_int(lat_object, "max", max);
1514 json_object_add_value_float(lat_object, "mean", mean);
1515 json_object_add_value_float(lat_object, "stddev", dev);
1516 json_object_add_value_int(lat_object, "N", lat_stat->samples);
1518 if (percentiles && lat_stat->samples) {
1519 len = calc_clat_percentiles(io_u_plat, lat_stat->samples,
1520 ts->percentile_list, &ovals, &maxv, &minv);
1522 if (len > FIO_IO_U_LIST_MAX_LEN)
1523 len = FIO_IO_U_LIST_MAX_LEN;
1525 percentile_object = json_create_object();
1526 json_object_add_value_object(lat_object, "percentile", percentile_object);
1527 for (i = 0; i < len; i++) {
1528 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
1529 json_object_add_value_int(percentile_object, buf, ovals[i]);
1533 if (output_format & FIO_OUTPUT_JSON_PLUS) {
1534 clat_bins_object = json_create_object();
1535 json_object_add_value_object(lat_object, "bins", clat_bins_object);
1537 for(i = 0; i < FIO_IO_U_PLAT_NR; i++)
1539 snprintf(buf, sizeof(buf), "%llu", plat_idx_to_val(i));
1540 json_object_add_value_int(clat_bins_object, buf, io_u_plat[i]);
1548 static void add_ddir_status_json(struct thread_stat *ts,
1549 struct group_run_stats *rs, int ddir, struct json_object *parent)
1551 unsigned long long min, max;
1552 unsigned long long bw_bytes, bw;
1553 double mean, dev, iops;
1554 struct json_object *dir_object, *tmp_object;
1555 double p_of_agg = 100.0;
1557 assert(ddir_rw(ddir) || ddir_sync(ddir));
1559 if ((ts->unified_rw_rep == UNIFIED_MIXED) && ddir != DDIR_READ)
1562 dir_object = json_create_object();
1563 json_object_add_value_object(parent,
1564 (ts->unified_rw_rep == UNIFIED_MIXED) ? "mixed" : io_ddir_name(ddir), dir_object);
1566 if (ddir_rw(ddir)) {
1570 if (ts->runtime[ddir]) {
1571 uint64_t runt = ts->runtime[ddir];
1573 bw_bytes = ((1000 * ts->io_bytes[ddir]) / runt); /* Bytes/s */
1574 bw = bw_bytes / 1024; /* KiB/s */
1575 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
1578 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir]);
1579 json_object_add_value_int(dir_object, "io_kbytes", ts->io_bytes[ddir] >> 10);
1580 json_object_add_value_int(dir_object, "bw_bytes", bw_bytes);
1581 json_object_add_value_int(dir_object, "bw", bw);
1582 json_object_add_value_float(dir_object, "iops", iops);
1583 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
1584 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
1585 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
1586 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
1588 tmp_object = add_ddir_lat_json(ts, ts->slat_percentiles,
1589 &ts->slat_stat[ddir], ts->io_u_plat[FIO_SLAT][ddir]);
1590 json_object_add_value_object(dir_object, "slat_ns", tmp_object);
1592 tmp_object = add_ddir_lat_json(ts, ts->clat_percentiles,
1593 &ts->clat_stat[ddir], ts->io_u_plat[FIO_CLAT][ddir]);
1594 json_object_add_value_object(dir_object, "clat_ns", tmp_object);
1596 tmp_object = add_ddir_lat_json(ts, ts->lat_percentiles,
1597 &ts->lat_stat[ddir], ts->io_u_plat[FIO_LAT][ddir]);
1598 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1600 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[DDIR_SYNC]);
1601 tmp_object = add_ddir_lat_json(ts, ts->lat_percentiles | ts->clat_percentiles,
1602 &ts->sync_stat, ts->io_u_sync_plat);
1603 json_object_add_value_object(dir_object, "lat_ns", tmp_object);
1609 /* Only print PRIO latencies if some high priority samples were gathered */
1610 if (ts->clat_high_prio_stat[ddir].samples > 0) {
1611 const char *high, *low;
1613 if (ts->lat_percentiles) {
1614 high = "lat_high_prio";
1615 low = "lat_low_prio";
1617 high = "clat_high_prio";
1618 low = "clat_low_prio";
1621 tmp_object = add_ddir_lat_json(ts, ts->clat_percentiles | ts->lat_percentiles,
1622 &ts->clat_high_prio_stat[ddir], ts->io_u_plat_high_prio[ddir]);
1623 json_object_add_value_object(dir_object, high, tmp_object);
1625 tmp_object = add_ddir_lat_json(ts, ts->clat_percentiles | ts->lat_percentiles,
1626 &ts->clat_low_prio_stat[ddir], ts->io_u_plat_low_prio[ddir]);
1627 json_object_add_value_object(dir_object, low, tmp_object);
1630 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
1631 p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
1634 p_of_agg = mean = dev = 0.0;
1637 json_object_add_value_int(dir_object, "bw_min", min);
1638 json_object_add_value_int(dir_object, "bw_max", max);
1639 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
1640 json_object_add_value_float(dir_object, "bw_mean", mean);
1641 json_object_add_value_float(dir_object, "bw_dev", dev);
1642 json_object_add_value_int(dir_object, "bw_samples",
1643 (&ts->bw_stat[ddir])->samples);
1645 if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
1649 json_object_add_value_int(dir_object, "iops_min", min);
1650 json_object_add_value_int(dir_object, "iops_max", max);
1651 json_object_add_value_float(dir_object, "iops_mean", mean);
1652 json_object_add_value_float(dir_object, "iops_stddev", dev);
1653 json_object_add_value_int(dir_object, "iops_samples",
1654 (&ts->iops_stat[ddir])->samples);
1656 if (ts->cachehit + ts->cachemiss) {
1660 total = ts->cachehit + ts->cachemiss;
1661 hit = (double) ts->cachehit / (double) total;
1663 json_object_add_value_float(dir_object, "cachehit", hit);
1667 static void add_mixed_ddir_status_json(struct thread_stat *ts,
1668 struct group_run_stats *rs, struct json_object *parent)
1670 struct thread_stat *ts_lcl;
1673 /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
1674 ts_lcl = malloc(sizeof(struct thread_stat));
1675 memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
1676 ts_lcl->unified_rw_rep = UNIFIED_MIXED; /* calculate mixed stats */
1677 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1678 ts_lcl->clat_stat[i].min_val = ULONG_MAX;
1679 ts_lcl->slat_stat[i].min_val = ULONG_MAX;
1680 ts_lcl->lat_stat[i].min_val = ULONG_MAX;
1681 ts_lcl->bw_stat[i].min_val = ULONG_MAX;
1682 ts_lcl->iops_stat[i].min_val = ULONG_MAX;
1683 ts_lcl->clat_high_prio_stat[i].min_val = ULONG_MAX;
1684 ts_lcl->clat_low_prio_stat[i].min_val = ULONG_MAX;
1686 ts_lcl->sync_stat.min_val = ULONG_MAX;
1687 ts_lcl->lat_percentiles = ts->lat_percentiles;
1688 ts_lcl->clat_percentiles = ts->clat_percentiles;
1689 ts_lcl->slat_percentiles = ts->slat_percentiles;
1690 ts_lcl->percentile_precision = ts->percentile_precision;
1691 memcpy(ts_lcl->percentile_list, ts->percentile_list, sizeof(ts->percentile_list));
1693 sum_thread_stats(ts_lcl, ts, 1);
1695 /* add the aggregated stats to json parent */
1696 add_ddir_status_json(ts_lcl, rs, DDIR_READ, parent);
1700 static void show_thread_status_terse_all(struct thread_stat *ts,
1701 struct group_run_stats *rs, int ver,
1702 struct buf_output *out)
1704 double io_u_dist[FIO_IO_U_MAP_NR];
1705 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1706 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1707 double usr_cpu, sys_cpu;
1712 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
1714 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1715 ts->name, ts->groupid, ts->error);
1717 /* Log Read Status, or mixed if unified_rw_rep = 1 */
1718 show_ddir_status_terse(ts, rs, DDIR_READ, ver, out);
1719 if (ts->unified_rw_rep != UNIFIED_MIXED) {
1720 /* Log Write Status */
1721 show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
1722 /* Log Trim Status */
1723 if (ver == 2 || ver == 4 || ver == 5)
1724 show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
1726 if (ts->unified_rw_rep == UNIFIED_BOTH)
1727 show_mixed_ddir_status_terse(ts, rs, ver, out);
1729 if (ts->total_run_time) {
1730 double runt = (double) ts->total_run_time;
1732 usr_cpu = (double) ts->usr_time * 100 / runt;
1733 sys_cpu = (double) ts->sys_time * 100 / runt;
1739 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1740 (unsigned long long) ts->ctx,
1741 (unsigned long long) ts->majf,
1742 (unsigned long long) ts->minf);
1744 /* Calc % distribution of IO depths, usecond, msecond latency */
1745 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1746 stat_calc_lat_nu(ts, io_u_lat_u);
1747 stat_calc_lat_m(ts, io_u_lat_m);
1749 /* Only show fixed 7 I/O depth levels*/
1750 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1751 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1752 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1754 /* Microsecond latency */
1755 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1756 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1757 /* Millisecond latency */
1758 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1759 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1761 /* disk util stats, if any */
1762 if (ver >= 3 && is_running_backend())
1763 show_disk_util(1, NULL, out);
1765 /* Additional output if continue_on_error set - default off*/
1766 if (ts->continue_on_error)
1767 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1769 /* Additional output if description is set */
1770 if (strlen(ts->description)) {
1773 log_buf(out, ";%s", ts->description);
1779 static void json_add_job_opts(struct json_object *root, const char *name,
1780 struct flist_head *opt_list)
1782 struct json_object *dir_object;
1783 struct flist_head *entry;
1784 struct print_option *p;
1786 if (flist_empty(opt_list))
1789 dir_object = json_create_object();
1790 json_object_add_value_object(root, name, dir_object);
1792 flist_for_each(entry, opt_list) {
1793 p = flist_entry(entry, struct print_option, list);
1794 json_object_add_value_string(dir_object, p->name, p->value);
1798 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1799 struct group_run_stats *rs,
1800 struct flist_head *opt_list)
1802 struct json_object *root, *tmp;
1803 struct jobs_eta *je;
1804 double io_u_dist[FIO_IO_U_MAP_NR];
1805 double io_u_lat_n[FIO_IO_U_LAT_N_NR];
1806 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1807 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1808 double usr_cpu, sys_cpu;
1812 root = json_create_object();
1813 json_object_add_value_string(root, "jobname", ts->name);
1814 json_object_add_value_int(root, "groupid", ts->groupid);
1815 json_object_add_value_int(root, "error", ts->error);
1818 je = get_jobs_eta(true, &size);
1820 json_object_add_value_int(root, "eta", je->eta_sec);
1821 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1825 json_add_job_opts(root, "job options", opt_list);
1827 add_ddir_status_json(ts, rs, DDIR_READ, root);
1828 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1829 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1830 add_ddir_status_json(ts, rs, DDIR_SYNC, root);
1832 if (ts->unified_rw_rep == UNIFIED_BOTH)
1833 add_mixed_ddir_status_json(ts, rs, root);
1836 if (ts->total_run_time) {
1837 double runt = (double) ts->total_run_time;
1839 usr_cpu = (double) ts->usr_time * 100 / runt;
1840 sys_cpu = (double) ts->sys_time * 100 / runt;
1845 json_object_add_value_int(root, "job_runtime", ts->total_run_time);
1846 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1847 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1848 json_object_add_value_int(root, "ctx", ts->ctx);
1849 json_object_add_value_int(root, "majf", ts->majf);
1850 json_object_add_value_int(root, "minf", ts->minf);
1852 /* Calc % distribution of IO depths */
1853 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1854 tmp = json_create_object();
1855 json_object_add_value_object(root, "iodepth_level", tmp);
1856 /* Only show fixed 7 I/O depth levels*/
1857 for (i = 0; i < 7; i++) {
1860 snprintf(name, 20, "%d", 1 << i);
1862 snprintf(name, 20, ">=%d", 1 << i);
1863 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1866 /* Calc % distribution of submit IO depths */
1867 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
1868 tmp = json_create_object();
1869 json_object_add_value_object(root, "iodepth_submit", tmp);
1870 /* Only show fixed 7 I/O depth levels*/
1871 for (i = 0; i < 7; i++) {
1874 snprintf(name, 20, "0");
1876 snprintf(name, 20, "%d", 1 << (i+1));
1878 snprintf(name, 20, ">=%d", 1 << i);
1879 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1882 /* Calc % distribution of completion IO depths */
1883 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
1884 tmp = json_create_object();
1885 json_object_add_value_object(root, "iodepth_complete", tmp);
1886 /* Only show fixed 7 I/O depth levels*/
1887 for (i = 0; i < 7; i++) {
1890 snprintf(name, 20, "0");
1892 snprintf(name, 20, "%d", 1 << (i+1));
1894 snprintf(name, 20, ">=%d", 1 << i);
1895 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1898 /* Calc % distribution of nsecond, usecond, msecond latency */
1899 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1900 stat_calc_lat_n(ts, io_u_lat_n);
1901 stat_calc_lat_u(ts, io_u_lat_u);
1902 stat_calc_lat_m(ts, io_u_lat_m);
1904 /* Nanosecond latency */
1905 tmp = json_create_object();
1906 json_object_add_value_object(root, "latency_ns", tmp);
1907 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++) {
1908 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1909 "250", "500", "750", "1000", };
1910 json_object_add_value_float(tmp, ranges[i], io_u_lat_n[i]);
1912 /* Microsecond latency */
1913 tmp = json_create_object();
1914 json_object_add_value_object(root, "latency_us", tmp);
1915 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1916 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1917 "250", "500", "750", "1000", };
1918 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1920 /* Millisecond latency */
1921 tmp = json_create_object();
1922 json_object_add_value_object(root, "latency_ms", tmp);
1923 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1924 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1925 "250", "500", "750", "1000", "2000",
1927 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1930 /* Additional output if continue_on_error set - default off*/
1931 if (ts->continue_on_error) {
1932 json_object_add_value_int(root, "total_err", ts->total_err_count);
1933 json_object_add_value_int(root, "first_error", ts->first_error);
1936 if (ts->latency_depth) {
1937 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1938 json_object_add_value_int(root, "latency_target", ts->latency_target);
1939 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1940 json_object_add_value_int(root, "latency_window", ts->latency_window);
1943 /* Additional output if description is set */
1944 if (strlen(ts->description))
1945 json_object_add_value_string(root, "desc", ts->description);
1947 if (ts->nr_block_infos) {
1948 /* Block error histogram and types */
1950 unsigned int *percentiles = NULL;
1951 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1953 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1954 ts->percentile_list,
1955 &percentiles, block_state_counts);
1958 struct json_object *block, *percentile_object, *states;
1960 block = json_create_object();
1961 json_object_add_value_object(root, "block", block);
1963 percentile_object = json_create_object();
1964 json_object_add_value_object(block, "percentiles",
1966 for (i = 0; i < len; i++) {
1968 snprintf(buf, sizeof(buf), "%f",
1969 ts->percentile_list[i].u.f);
1970 json_object_add_value_int(percentile_object,
1975 states = json_create_object();
1976 json_object_add_value_object(block, "states", states);
1977 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1978 json_object_add_value_int(states,
1979 block_state_names[state],
1980 block_state_counts[state]);
1987 struct json_object *data;
1988 struct json_array *iops, *bw;
1992 snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
1993 ts->ss_state & FIO_SS_IOPS ? "iops" : "bw",
1994 ts->ss_state & FIO_SS_SLOPE ? "_slope" : "",
1995 (float) ts->ss_limit.u.f,
1996 ts->ss_state & FIO_SS_PCT ? "%" : "");
1998 tmp = json_create_object();
1999 json_object_add_value_object(root, "steadystate", tmp);
2000 json_object_add_value_string(tmp, "ss", ss_buf);
2001 json_object_add_value_int(tmp, "duration", (int)ts->ss_dur);
2002 json_object_add_value_int(tmp, "attained", (ts->ss_state & FIO_SS_ATTAINED) > 0);
2004 snprintf(ss_buf, sizeof(ss_buf), "%f%s", (float) ts->ss_criterion.u.f,
2005 ts->ss_state & FIO_SS_PCT ? "%" : "");
2006 json_object_add_value_string(tmp, "criterion", ss_buf);
2007 json_object_add_value_float(tmp, "max_deviation", ts->ss_deviation.u.f);
2008 json_object_add_value_float(tmp, "slope", ts->ss_slope.u.f);
2010 data = json_create_object();
2011 json_object_add_value_object(tmp, "data", data);
2012 bw = json_create_array();
2013 iops = json_create_array();
2016 ** if ss was attained or the buffer is not full,
2017 ** ss->head points to the first element in the list.
2018 ** otherwise it actually points to the second element
2021 if ((ts->ss_state & FIO_SS_ATTAINED) || !(ts->ss_state & FIO_SS_BUFFER_FULL))
2024 j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
2025 for (l = 0; l < ts->ss_dur; l++) {
2026 k = (j + l) % ts->ss_dur;
2027 json_array_add_value_int(bw, ts->ss_bw_data[k]);
2028 json_array_add_value_int(iops, ts->ss_iops_data[k]);
2030 json_object_add_value_int(data, "bw_mean", steadystate_bw_mean(ts));
2031 json_object_add_value_int(data, "iops_mean", steadystate_iops_mean(ts));
2032 json_object_add_value_array(data, "iops", iops);
2033 json_object_add_value_array(data, "bw", bw);
2039 static void show_thread_status_terse(struct thread_stat *ts,
2040 struct group_run_stats *rs,
2041 struct buf_output *out)
2043 if (terse_version >= 2 && terse_version <= 5)
2044 show_thread_status_terse_all(ts, rs, terse_version, out);
2046 log_err("fio: bad terse version!? %d\n", terse_version);
2049 struct json_object *show_thread_status(struct thread_stat *ts,
2050 struct group_run_stats *rs,
2051 struct flist_head *opt_list,
2052 struct buf_output *out)
2054 struct json_object *ret = NULL;
2056 if (output_format & FIO_OUTPUT_TERSE)
2057 show_thread_status_terse(ts, rs, out);
2058 if (output_format & FIO_OUTPUT_JSON)
2059 ret = show_thread_status_json(ts, rs, opt_list);
2060 if (output_format & FIO_OUTPUT_NORMAL)
2061 show_thread_status_normal(ts, rs, out);
2066 static void __sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
2070 dst->min_val = min(dst->min_val, src->min_val);
2071 dst->max_val = max(dst->max_val, src->max_val);
2074 * Compute new mean and S after the merge
2075 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
2076 * #Parallel_algorithm>
2079 mean = src->mean.u.f;
2082 double delta = src->mean.u.f - dst->mean.u.f;
2084 mean = ((src->mean.u.f * src->samples) +
2085 (dst->mean.u.f * dst->samples)) /
2086 (dst->samples + src->samples);
2088 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
2089 (dst->samples * src->samples) /
2090 (dst->samples + src->samples);
2093 dst->samples += src->samples;
2094 dst->mean.u.f = mean;
2100 * We sum two kinds of stats - one that is time based, in which case we
2101 * apply the proper summing technique, and then one that is iops/bw
2102 * numbers. For group_reporting, we should just add those up, not make
2103 * them the mean of everything.
2105 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first,
2108 if (src->samples == 0)
2112 __sum_stat(dst, src, first);
2117 dst->min_val = src->min_val;
2118 dst->max_val = src->max_val;
2119 dst->samples = src->samples;
2120 dst->mean.u.f = src->mean.u.f;
2121 dst->S.u.f = src->S.u.f;
2123 dst->min_val += src->min_val;
2124 dst->max_val += src->max_val;
2125 dst->samples += src->samples;
2126 dst->mean.u.f += src->mean.u.f;
2127 dst->S.u.f += src->S.u.f;
2131 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
2135 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2136 if (dst->max_run[i] < src->max_run[i])
2137 dst->max_run[i] = src->max_run[i];
2138 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
2139 dst->min_run[i] = src->min_run[i];
2140 if (dst->max_bw[i] < src->max_bw[i])
2141 dst->max_bw[i] = src->max_bw[i];
2142 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
2143 dst->min_bw[i] = src->min_bw[i];
2145 dst->iobytes[i] += src->iobytes[i];
2146 dst->agg[i] += src->agg[i];
2150 dst->kb_base = src->kb_base;
2151 if (!dst->unit_base)
2152 dst->unit_base = src->unit_base;
2154 dst->sig_figs = src->sig_figs;
2157 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
2162 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
2163 if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
2164 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first, false);
2165 sum_stat(&dst->clat_high_prio_stat[l], &src->clat_high_prio_stat[l], first, false);
2166 sum_stat(&dst->clat_low_prio_stat[l], &src->clat_low_prio_stat[l], first, false);
2167 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first, false);
2168 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first, false);
2169 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first, true);
2170 sum_stat(&dst->iops_stat[l], &src->iops_stat[l], first, true);
2172 dst->io_bytes[l] += src->io_bytes[l];
2174 if (dst->runtime[l] < src->runtime[l])
2175 dst->runtime[l] = src->runtime[l];
2177 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first, false);
2178 sum_stat(&dst->clat_high_prio_stat[0], &src->clat_high_prio_stat[l], first, false);
2179 sum_stat(&dst->clat_low_prio_stat[0], &src->clat_low_prio_stat[l], first, false);
2180 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first, false);
2181 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first, false);
2182 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first, true);
2183 sum_stat(&dst->iops_stat[0], &src->iops_stat[l], first, true);
2185 dst->io_bytes[0] += src->io_bytes[l];
2187 if (dst->runtime[0] < src->runtime[l])
2188 dst->runtime[0] = src->runtime[l];
2191 * We're summing to the same destination, so override
2192 * 'first' after the first iteration of the loop
2198 sum_stat(&dst->sync_stat, &src->sync_stat, first, false);
2199 dst->usr_time += src->usr_time;
2200 dst->sys_time += src->sys_time;
2201 dst->ctx += src->ctx;
2202 dst->majf += src->majf;
2203 dst->minf += src->minf;
2205 for (k = 0; k < FIO_IO_U_MAP_NR; k++) {
2206 dst->io_u_map[k] += src->io_u_map[k];
2207 dst->io_u_submit[k] += src->io_u_submit[k];
2208 dst->io_u_complete[k] += src->io_u_complete[k];
2211 for (k = 0; k < FIO_IO_U_LAT_N_NR; k++)
2212 dst->io_u_lat_n[k] += src->io_u_lat_n[k];
2213 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
2214 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
2215 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
2216 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
2218 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
2219 if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
2220 dst->total_io_u[k] += src->total_io_u[k];
2221 dst->short_io_u[k] += src->short_io_u[k];
2222 dst->drop_io_u[k] += src->drop_io_u[k];
2224 dst->total_io_u[0] += src->total_io_u[k];
2225 dst->short_io_u[0] += src->short_io_u[k];
2226 dst->drop_io_u[0] += src->drop_io_u[k];
2230 dst->total_io_u[DDIR_SYNC] += src->total_io_u[DDIR_SYNC];
2232 for (k = 0; k < FIO_LAT_CNT; k++)
2233 for (l = 0; l < DDIR_RWDIR_CNT; l++)
2234 for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
2235 if (!(dst->unified_rw_rep == UNIFIED_MIXED))
2236 dst->io_u_plat[k][l][m] += src->io_u_plat[k][l][m];
2238 dst->io_u_plat[k][0][m] += src->io_u_plat[k][l][m];
2240 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
2241 dst->io_u_sync_plat[k] += src->io_u_sync_plat[k];
2243 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
2244 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
2245 if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
2246 dst->io_u_plat_high_prio[k][m] += src->io_u_plat_high_prio[k][m];
2247 dst->io_u_plat_low_prio[k][m] += src->io_u_plat_low_prio[k][m];
2249 dst->io_u_plat_high_prio[0][m] += src->io_u_plat_high_prio[k][m];
2250 dst->io_u_plat_low_prio[0][m] += src->io_u_plat_low_prio[k][m];
2256 dst->total_run_time += src->total_run_time;
2257 dst->total_submit += src->total_submit;
2258 dst->total_complete += src->total_complete;
2259 dst->nr_zone_resets += src->nr_zone_resets;
2260 dst->cachehit += src->cachehit;
2261 dst->cachemiss += src->cachemiss;
2264 void init_group_run_stat(struct group_run_stats *gs)
2267 memset(gs, 0, sizeof(*gs));
2269 for (i = 0; i < DDIR_RWDIR_CNT; i++)
2270 gs->min_bw[i] = gs->min_run[i] = ~0UL;
2273 void init_thread_stat(struct thread_stat *ts)
2277 memset(ts, 0, sizeof(*ts));
2279 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
2280 ts->lat_stat[j].min_val = -1UL;
2281 ts->clat_stat[j].min_val = -1UL;
2282 ts->slat_stat[j].min_val = -1UL;
2283 ts->bw_stat[j].min_val = -1UL;
2284 ts->iops_stat[j].min_val = -1UL;
2285 ts->clat_high_prio_stat[j].min_val = -1UL;
2286 ts->clat_low_prio_stat[j].min_val = -1UL;
2288 ts->sync_stat.min_val = -1UL;
2292 void __show_run_stats(void)
2294 struct group_run_stats *runstats, *rs;
2295 struct thread_data *td;
2296 struct thread_stat *threadstats, *ts;
2297 int i, j, k, nr_ts, last_ts, idx;
2298 bool kb_base_warned = false;
2299 bool unit_base_warned = false;
2300 struct json_object *root = NULL;
2301 struct json_array *array = NULL;
2302 struct buf_output output[FIO_OUTPUT_NR];
2303 struct flist_head **opt_lists;
2305 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
2307 for (i = 0; i < groupid + 1; i++)
2308 init_group_run_stat(&runstats[i]);
2311 * find out how many threads stats we need. if group reporting isn't
2312 * enabled, it's one-per-td.
2316 for_each_td(td, i) {
2317 if (!td->o.group_reporting) {
2321 if (last_ts == td->groupid)
2326 last_ts = td->groupid;
2330 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
2331 opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
2333 for (i = 0; i < nr_ts; i++) {
2334 init_thread_stat(&threadstats[i]);
2335 opt_lists[i] = NULL;
2341 for_each_td(td, i) {
2344 if (idx && (!td->o.group_reporting ||
2345 (td->o.group_reporting && last_ts != td->groupid))) {
2350 last_ts = td->groupid;
2352 ts = &threadstats[j];
2354 ts->clat_percentiles = td->o.clat_percentiles;
2355 ts->lat_percentiles = td->o.lat_percentiles;
2356 ts->slat_percentiles = td->o.slat_percentiles;
2357 ts->percentile_precision = td->o.percentile_precision;
2358 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
2359 opt_lists[j] = &td->opt_list;
2364 if (ts->groupid == -1) {
2366 * These are per-group shared already
2368 snprintf(ts->name, sizeof(ts->name), "%s", td->o.name);
2369 if (td->o.description)
2370 snprintf(ts->description,
2371 sizeof(ts->description), "%s",
2374 memset(ts->description, 0, FIO_JOBDESC_SIZE);
2377 * If multiple entries in this group, this is
2380 ts->thread_number = td->thread_number;
2381 ts->groupid = td->groupid;
2384 * first pid in group, not very useful...
2388 ts->kb_base = td->o.kb_base;
2389 ts->unit_base = td->o.unit_base;
2390 ts->sig_figs = td->o.sig_figs;
2391 ts->unified_rw_rep = td->o.unified_rw_rep;
2392 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
2393 log_info("fio: kb_base differs for jobs in group, using"
2394 " %u as the base\n", ts->kb_base);
2395 kb_base_warned = true;
2396 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
2397 log_info("fio: unit_base differs for jobs in group, using"
2398 " %u as the base\n", ts->unit_base);
2399 unit_base_warned = true;
2402 ts->continue_on_error = td->o.continue_on_error;
2403 ts->total_err_count += td->total_err_count;
2404 ts->first_error = td->first_error;
2406 if (!td->error && td->o.continue_on_error &&
2408 ts->error = td->first_error;
2409 snprintf(ts->verror, sizeof(ts->verror), "%s",
2411 } else if (td->error) {
2412 ts->error = td->error;
2413 snprintf(ts->verror, sizeof(ts->verror), "%s",
2418 ts->latency_depth = td->latency_qd;
2419 ts->latency_target = td->o.latency_target;
2420 ts->latency_percentile = td->o.latency_percentile;
2421 ts->latency_window = td->o.latency_window;
2423 ts->nr_block_infos = td->ts.nr_block_infos;
2424 for (k = 0; k < ts->nr_block_infos; k++)
2425 ts->block_infos[k] = td->ts.block_infos[k];
2427 sum_thread_stats(ts, &td->ts, idx == 1);
2430 ts->ss_state = td->ss.state;
2431 ts->ss_dur = td->ss.dur;
2432 ts->ss_head = td->ss.head;
2433 ts->ss_bw_data = td->ss.bw_data;
2434 ts->ss_iops_data = td->ss.iops_data;
2435 ts->ss_limit.u.f = td->ss.limit;
2436 ts->ss_slope.u.f = td->ss.slope;
2437 ts->ss_deviation.u.f = td->ss.deviation;
2438 ts->ss_criterion.u.f = td->ss.criterion;
2441 ts->ss_dur = ts->ss_state = 0;
2444 for (i = 0; i < nr_ts; i++) {
2445 unsigned long long bw;
2447 ts = &threadstats[i];
2448 if (ts->groupid == -1)
2450 rs = &runstats[ts->groupid];
2451 rs->kb_base = ts->kb_base;
2452 rs->unit_base = ts->unit_base;
2453 rs->sig_figs = ts->sig_figs;
2454 rs->unified_rw_rep |= ts->unified_rw_rep;
2456 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
2457 if (!ts->runtime[j])
2459 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
2460 rs->min_run[j] = ts->runtime[j];
2461 if (ts->runtime[j] > rs->max_run[j])
2462 rs->max_run[j] = ts->runtime[j];
2466 bw = ts->io_bytes[j] * 1000 / ts->runtime[j];
2467 if (bw < rs->min_bw[j])
2469 if (bw > rs->max_bw[j])
2472 rs->iobytes[j] += ts->io_bytes[j];
2476 for (i = 0; i < groupid + 1; i++) {
2481 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
2482 if (rs->max_run[ddir])
2483 rs->agg[ddir] = (rs->iobytes[ddir] * 1000) /
2488 for (i = 0; i < FIO_OUTPUT_NR; i++)
2489 buf_output_init(&output[i]);
2492 * don't overwrite last signal output
2494 if (output_format & FIO_OUTPUT_NORMAL)
2495 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
2496 if (output_format & FIO_OUTPUT_JSON) {
2497 struct thread_data *global;
2500 unsigned long long ms_since_epoch;
2503 gettimeofday(&now, NULL);
2504 ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
2505 (unsigned long long)(now.tv_usec) / 1000;
2507 tv_sec = now.tv_sec;
2508 os_ctime_r(&tv_sec, time_buf, sizeof(time_buf));
2509 if (time_buf[strlen(time_buf) - 1] == '\n')
2510 time_buf[strlen(time_buf) - 1] = '\0';
2512 root = json_create_object();
2513 json_object_add_value_string(root, "fio version", fio_version_string);
2514 json_object_add_value_int(root, "timestamp", now.tv_sec);
2515 json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
2516 json_object_add_value_string(root, "time", time_buf);
2517 global = get_global_options();
2518 json_add_job_opts(root, "global options", &global->opt_list);
2519 array = json_create_array();
2520 json_object_add_value_array(root, "jobs", array);
2524 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
2526 for (i = 0; i < nr_ts; i++) {
2527 ts = &threadstats[i];
2528 rs = &runstats[ts->groupid];
2531 fio_server_send_job_options(opt_lists[i], i);
2532 fio_server_send_ts(ts, rs);
2534 if (output_format & FIO_OUTPUT_TERSE)
2535 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
2536 if (output_format & FIO_OUTPUT_JSON) {
2537 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
2538 json_array_add_value_object(array, tmp);
2540 if (output_format & FIO_OUTPUT_NORMAL)
2541 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
2544 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
2545 /* disk util stats, if any */
2546 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
2548 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
2550 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
2551 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
2552 json_free_object(root);
2555 for (i = 0; i < groupid + 1; i++) {
2560 fio_server_send_gs(rs);
2561 else if (output_format & FIO_OUTPUT_NORMAL)
2562 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
2566 fio_server_send_du();
2567 else if (output_format & FIO_OUTPUT_NORMAL) {
2568 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
2569 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
2572 for (i = 0; i < FIO_OUTPUT_NR; i++) {
2573 struct buf_output *out = &output[i];
2575 log_info_buf(out->buf, out->buflen);
2576 buf_output_free(out);
2579 fio_idle_prof_cleanup();
2587 int __show_running_run_stats(void)
2589 struct thread_data *td;
2590 unsigned long long *rt;
2594 fio_sem_down(stat_sem);
2596 rt = malloc(thread_number * sizeof(unsigned long long));
2597 fio_gettime(&ts, NULL);
2599 for_each_td(td, i) {
2600 td->update_rusage = 1;
2601 for_each_rw_ddir(ddir) {
2602 td->ts.io_bytes[ddir] = td->io_bytes[ddir];
2604 td->ts.total_run_time = mtime_since(&td->epoch, &ts);
2606 rt[i] = mtime_since(&td->start, &ts);
2607 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2608 td->ts.runtime[DDIR_READ] += rt[i];
2609 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2610 td->ts.runtime[DDIR_WRITE] += rt[i];
2611 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2612 td->ts.runtime[DDIR_TRIM] += rt[i];
2615 for_each_td(td, i) {
2616 if (td->runstate >= TD_EXITED)
2618 if (td->rusage_sem) {
2619 td->update_rusage = 1;
2620 fio_sem_down(td->rusage_sem);
2622 td->update_rusage = 0;
2627 for_each_td(td, i) {
2628 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
2629 td->ts.runtime[DDIR_READ] -= rt[i];
2630 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
2631 td->ts.runtime[DDIR_WRITE] -= rt[i];
2632 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
2633 td->ts.runtime[DDIR_TRIM] -= rt[i];
2637 fio_sem_up(stat_sem);
2642 static bool status_file_disabled;
2644 #define FIO_STATUS_FILE "fio-dump-status"
2646 static int check_status_file(void)
2649 const char *temp_dir;
2650 char fio_status_file_path[PATH_MAX];
2652 if (status_file_disabled)
2655 temp_dir = getenv("TMPDIR");
2656 if (temp_dir == NULL) {
2657 temp_dir = getenv("TEMP");
2658 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
2661 if (temp_dir == NULL)
2664 __coverity_tainted_data_sanitize__(temp_dir);
2667 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
2669 if (stat(fio_status_file_path, &sb))
2672 if (unlink(fio_status_file_path) < 0) {
2673 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
2675 log_err("fio: disabling status file updates\n");
2676 status_file_disabled = true;
2682 void check_for_running_stats(void)
2684 if (check_status_file()) {
2685 show_running_run_stats();
2690 static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
2695 if (data > is->max_val)
2697 if (data < is->min_val)
2700 delta = val - is->mean.u.f;
2702 is->mean.u.f += delta / (is->samples + 1.0);
2703 is->S.u.f += delta * (val - is->mean.u.f);
2710 * Return a struct io_logs, which is added to the tail of the log
2713 static struct io_logs *get_new_log(struct io_log *iolog)
2715 size_t new_size, new_samples;
2716 struct io_logs *cur_log;
2719 * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
2722 if (!iolog->cur_log_max)
2723 new_samples = DEF_LOG_ENTRIES;
2725 new_samples = iolog->cur_log_max * 2;
2726 if (new_samples > MAX_LOG_ENTRIES)
2727 new_samples = MAX_LOG_ENTRIES;
2730 new_size = new_samples * log_entry_sz(iolog);
2732 cur_log = smalloc(sizeof(*cur_log));
2734 INIT_FLIST_HEAD(&cur_log->list);
2735 cur_log->log = malloc(new_size);
2737 cur_log->nr_samples = 0;
2738 cur_log->max_samples = new_samples;
2739 flist_add_tail(&cur_log->list, &iolog->io_logs);
2740 iolog->cur_log_max = new_samples;
2750 * Add and return a new log chunk, or return current log if big enough
2752 static struct io_logs *regrow_log(struct io_log *iolog)
2754 struct io_logs *cur_log;
2757 if (!iolog || iolog->disabled)
2760 cur_log = iolog_cur_log(iolog);
2762 cur_log = get_new_log(iolog);
2767 if (cur_log->nr_samples < cur_log->max_samples)
2771 * No room for a new sample. If we're compressing on the fly, flush
2772 * out the current chunk
2774 if (iolog->log_gz) {
2775 if (iolog_cur_flush(iolog, cur_log)) {
2776 log_err("fio: failed flushing iolog! Will stop logging.\n");
2782 * Get a new log array, and add to our list
2784 cur_log = get_new_log(iolog);
2786 log_err("fio: failed extending iolog! Will stop logging.\n");
2790 if (!iolog->pending || !iolog->pending->nr_samples)
2794 * Flush pending items to new log
2796 for (i = 0; i < iolog->pending->nr_samples; i++) {
2797 struct io_sample *src, *dst;
2799 src = get_sample(iolog, iolog->pending, i);
2800 dst = get_sample(iolog, cur_log, i);
2801 memcpy(dst, src, log_entry_sz(iolog));
2803 cur_log->nr_samples = iolog->pending->nr_samples;
2805 iolog->pending->nr_samples = 0;
2809 iolog->disabled = true;
2813 void regrow_logs(struct thread_data *td)
2815 regrow_log(td->slat_log);
2816 regrow_log(td->clat_log);
2817 regrow_log(td->clat_hist_log);
2818 regrow_log(td->lat_log);
2819 regrow_log(td->bw_log);
2820 regrow_log(td->iops_log);
2821 td->flags &= ~TD_F_REGROW_LOGS;
2824 void regrow_agg_logs(void)
2828 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2829 regrow_log(agg_io_log[ddir]);
2832 static struct io_logs *get_cur_log(struct io_log *iolog)
2834 struct io_logs *cur_log;
2836 cur_log = iolog_cur_log(iolog);
2838 cur_log = get_new_log(iolog);
2843 if (cur_log->nr_samples < cur_log->max_samples)
2847 * Out of space. If we're in IO offload mode, or we're not doing
2848 * per unit logging (hence logging happens outside of the IO thread
2849 * as well), add a new log chunk inline. If we're doing inline
2850 * submissions, flag 'td' as needing a log regrow and we'll take
2851 * care of it on the submission side.
2853 if ((iolog->td && iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD) ||
2854 !per_unit_log(iolog))
2855 return regrow_log(iolog);
2858 iolog->td->flags |= TD_F_REGROW_LOGS;
2860 assert(iolog->pending->nr_samples < iolog->pending->max_samples);
2861 return iolog->pending;
2864 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
2865 enum fio_ddir ddir, unsigned long long bs,
2866 unsigned long t, uint64_t offset,
2867 unsigned int priority)
2869 struct io_logs *cur_log;
2871 if (iolog->disabled)
2873 if (flist_empty(&iolog->io_logs))
2874 iolog->avg_last[ddir] = t;
2876 cur_log = get_cur_log(iolog);
2878 struct io_sample *s;
2880 s = get_sample(iolog, cur_log, cur_log->nr_samples);
2883 s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
2884 io_sample_set_ddir(iolog, s, ddir);
2886 s->priority = priority;
2888 if (iolog->log_offset) {
2889 struct io_sample_offset *so = (void *) s;
2891 so->offset = offset;
2894 cur_log->nr_samples++;
2898 iolog->disabled = true;
2901 static inline void reset_io_stat(struct io_stat *ios)
2903 ios->min_val = -1ULL;
2904 ios->max_val = ios->samples = 0;
2905 ios->mean.u.f = ios->S.u.f = 0;
2908 void reset_io_stats(struct thread_data *td)
2910 struct thread_stat *ts = &td->ts;
2913 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2914 reset_io_stat(&ts->clat_high_prio_stat[i]);
2915 reset_io_stat(&ts->clat_low_prio_stat[i]);
2916 reset_io_stat(&ts->clat_stat[i]);
2917 reset_io_stat(&ts->slat_stat[i]);
2918 reset_io_stat(&ts->lat_stat[i]);
2919 reset_io_stat(&ts->bw_stat[i]);
2920 reset_io_stat(&ts->iops_stat[i]);
2922 ts->io_bytes[i] = 0;
2924 ts->total_io_u[i] = 0;
2925 ts->short_io_u[i] = 0;
2926 ts->drop_io_u[i] = 0;
2928 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
2929 ts->io_u_plat_high_prio[i][j] = 0;
2930 ts->io_u_plat_low_prio[i][j] = 0;
2932 ts->io_u_sync_plat[j] = 0;
2936 for (i = 0; i < FIO_LAT_CNT; i++)
2937 for (j = 0; j < DDIR_RWDIR_CNT; j++)
2938 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
2939 ts->io_u_plat[i][j][k] = 0;
2941 ts->total_io_u[DDIR_SYNC] = 0;
2943 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
2944 ts->io_u_map[i] = 0;
2945 ts->io_u_submit[i] = 0;
2946 ts->io_u_complete[i] = 0;
2949 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
2950 ts->io_u_lat_n[i] = 0;
2951 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
2952 ts->io_u_lat_u[i] = 0;
2953 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
2954 ts->io_u_lat_m[i] = 0;
2956 ts->total_submit = 0;
2957 ts->total_complete = 0;
2958 ts->nr_zone_resets = 0;
2959 ts->cachehit = ts->cachemiss = 0;
2962 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
2963 unsigned long elapsed, bool log_max)
2966 * Note an entry in the log. Use the mean from the logged samples,
2967 * making sure to properly round up. Only write a log entry if we
2968 * had actual samples done.
2970 if (iolog->avg_window[ddir].samples) {
2971 union io_sample_data data;
2974 data.val = iolog->avg_window[ddir].max_val;
2976 data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
2978 __add_log_sample(iolog, data, ddir, 0, elapsed, 0, 0);
2981 reset_io_stat(&iolog->avg_window[ddir]);
2984 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
2989 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
2990 __add_stat_to_log(iolog, ddir, elapsed, log_max);
2993 static unsigned long add_log_sample(struct thread_data *td,
2994 struct io_log *iolog,
2995 union io_sample_data data,
2996 enum fio_ddir ddir, unsigned long long bs,
2997 uint64_t offset, unsigned int ioprio)
2999 unsigned long elapsed, this_window;
3004 elapsed = mtime_since_now(&td->epoch);
3007 * If no time averaging, just add the log sample.
3009 if (!iolog->avg_msec) {
3010 __add_log_sample(iolog, data, ddir, bs, elapsed, offset,
3016 * Add the sample. If the time period has passed, then
3017 * add that entry to the log and clear.
3019 add_stat_sample(&iolog->avg_window[ddir], data.val);
3022 * If period hasn't passed, adding the above sample is all we
3025 this_window = elapsed - iolog->avg_last[ddir];
3026 if (elapsed < iolog->avg_last[ddir])
3027 return iolog->avg_last[ddir] - elapsed;
3028 else if (this_window < iolog->avg_msec) {
3029 unsigned long diff = iolog->avg_msec - this_window;
3031 if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
3035 __add_stat_to_log(iolog, ddir, elapsed, td->o.log_max != 0);
3037 iolog->avg_last[ddir] = elapsed - (elapsed % iolog->avg_msec);
3039 return iolog->avg_msec;
3042 void finalize_logs(struct thread_data *td, bool unit_logs)
3044 unsigned long elapsed;
3046 elapsed = mtime_since_now(&td->epoch);
3048 if (td->clat_log && unit_logs)
3049 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
3050 if (td->slat_log && unit_logs)
3051 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
3052 if (td->lat_log && unit_logs)
3053 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
3054 if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
3055 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
3056 if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
3057 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
3060 void add_agg_sample(union io_sample_data data, enum fio_ddir ddir,
3061 unsigned long long bs)
3063 struct io_log *iolog;
3068 iolog = agg_io_log[ddir];
3069 __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0, 0);
3072 void add_sync_clat_sample(struct thread_stat *ts, unsigned long long nsec)
3074 unsigned int idx = plat_val_to_idx(nsec);
3075 assert(idx < FIO_IO_U_PLAT_NR);
3077 ts->io_u_sync_plat[idx]++;
3078 add_stat_sample(&ts->sync_stat, nsec);
3081 static void add_lat_percentile_sample_noprio(struct thread_stat *ts,
3082 unsigned long long nsec, enum fio_ddir ddir, enum fio_lat lat)
3084 unsigned int idx = plat_val_to_idx(nsec);
3085 assert(idx < FIO_IO_U_PLAT_NR);
3087 ts->io_u_plat[lat][ddir][idx]++;
3090 static void add_lat_percentile_sample(struct thread_stat *ts,
3091 unsigned long long nsec, enum fio_ddir ddir,
3092 bool high_prio, enum fio_lat lat)
3094 unsigned int idx = plat_val_to_idx(nsec);
3096 add_lat_percentile_sample_noprio(ts, nsec, ddir, lat);
3099 ts->io_u_plat_low_prio[ddir][idx]++;
3101 ts->io_u_plat_high_prio[ddir][idx]++;
3104 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
3105 unsigned long long nsec, unsigned long long bs,
3106 uint64_t offset, unsigned int ioprio, bool high_prio)
3108 const bool needs_lock = td_async_processing(td);
3109 unsigned long elapsed, this_window;
3110 struct thread_stat *ts = &td->ts;
3111 struct io_log *iolog = td->clat_hist_log;
3116 add_stat_sample(&ts->clat_stat[ddir], nsec);
3118 if (!ts->lat_percentiles) {
3120 add_stat_sample(&ts->clat_high_prio_stat[ddir], nsec);
3122 add_stat_sample(&ts->clat_low_prio_stat[ddir], nsec);
3126 add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
3129 if (ts->clat_percentiles) {
3130 if (ts->lat_percentiles)
3131 add_lat_percentile_sample_noprio(ts, nsec, ddir, FIO_CLAT);
3133 add_lat_percentile_sample(ts, nsec, ddir, high_prio, FIO_CLAT);
3136 if (iolog && iolog->hist_msec) {
3137 struct io_hist *hw = &iolog->hist_window[ddir];
3140 elapsed = mtime_since_now(&td->epoch);
3142 hw->hist_last = elapsed;
3143 this_window = elapsed - hw->hist_last;
3145 if (this_window >= iolog->hist_msec) {
3146 uint64_t *io_u_plat;
3147 struct io_u_plat_entry *dst;
3150 * Make a byte-for-byte copy of the latency histogram
3151 * stored in td->ts.io_u_plat[ddir], recording it in a
3152 * log sample. Note that the matching call to free() is
3153 * located in iolog.c after printing this sample to the
3156 io_u_plat = (uint64_t *) td->ts.io_u_plat[FIO_CLAT][ddir];
3157 dst = malloc(sizeof(struct io_u_plat_entry));
3158 memcpy(&(dst->io_u_plat), io_u_plat,
3159 FIO_IO_U_PLAT_NR * sizeof(uint64_t));
3160 flist_add(&dst->list, &hw->list);
3161 __add_log_sample(iolog, sample_plat(dst), ddir, bs,
3162 elapsed, offset, ioprio);
3165 * Update the last time we recorded as being now, minus
3166 * any drift in time we encountered before actually
3167 * making the record.
3169 hw->hist_last = elapsed - (this_window - iolog->hist_msec);
3175 __td_io_u_unlock(td);
3178 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
3179 unsigned long long nsec, unsigned long long bs,
3180 uint64_t offset, unsigned int ioprio)
3182 const bool needs_lock = td_async_processing(td);
3183 struct thread_stat *ts = &td->ts;
3191 add_stat_sample(&ts->slat_stat[ddir], nsec);
3194 add_log_sample(td, td->slat_log, sample_val(nsec), ddir, bs,
3197 if (ts->slat_percentiles)
3198 add_lat_percentile_sample_noprio(ts, nsec, ddir, FIO_SLAT);
3201 __td_io_u_unlock(td);
3204 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
3205 unsigned long long nsec, unsigned long long bs,
3206 uint64_t offset, unsigned int ioprio, bool high_prio)
3208 const bool needs_lock = td_async_processing(td);
3209 struct thread_stat *ts = &td->ts;
3217 add_stat_sample(&ts->lat_stat[ddir], nsec);
3220 add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
3223 if (ts->lat_percentiles) {
3224 add_lat_percentile_sample(ts, nsec, ddir, high_prio, FIO_LAT);
3226 add_stat_sample(&ts->clat_high_prio_stat[ddir], nsec);
3228 add_stat_sample(&ts->clat_low_prio_stat[ddir], nsec);
3232 __td_io_u_unlock(td);
3235 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
3236 unsigned int bytes, unsigned long long spent)
3238 const bool needs_lock = td_async_processing(td);
3239 struct thread_stat *ts = &td->ts;
3243 rate = (unsigned long) (bytes * 1000000ULL / spent);
3250 add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
3253 add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
3254 bytes, io_u->offset, io_u->ioprio);
3256 td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
3259 __td_io_u_unlock(td);
3262 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
3263 struct timespec *t, unsigned int avg_time,
3264 uint64_t *this_io_bytes, uint64_t *stat_io_bytes,
3265 struct io_stat *stat, struct io_log *log,
3268 const bool needs_lock = td_async_processing(td);
3269 unsigned long spent, rate;
3271 unsigned long next, next_log;
3273 next_log = avg_time;
3275 spent = mtime_since(parent_tv, t);
3276 if (spent < avg_time && avg_time - spent > LOG_MSEC_SLACK)
3277 return avg_time - spent;
3283 * Compute both read and write rates for the interval.
3285 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
3288 delta = this_io_bytes[ddir] - stat_io_bytes[ddir];
3290 continue; /* No entries for interval */
3294 rate = delta * 1000 / spent / 1024; /* KiB/s */
3296 rate = (delta * 1000) / spent;
3300 add_stat_sample(&stat[ddir], rate);
3303 unsigned long long bs = 0;
3305 if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
3306 bs = td->o.min_bs[ddir];
3308 next = add_log_sample(td, log, sample_val(rate), ddir,
3310 next_log = min(next_log, next);
3313 stat_io_bytes[ddir] = this_io_bytes[ddir];
3319 __td_io_u_unlock(td);
3321 if (spent <= avg_time)
3324 next = avg_time - (1 + spent - avg_time);
3326 return min(next, next_log);
3329 static int add_bw_samples(struct thread_data *td, struct timespec *t)
3331 return __add_samples(td, &td->bw_sample_time, t, td->o.bw_avg_time,
3332 td->this_io_bytes, td->stat_io_bytes,
3333 td->ts.bw_stat, td->bw_log, true);
3336 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
3339 const bool needs_lock = td_async_processing(td);
3340 struct thread_stat *ts = &td->ts;
3345 add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
3348 add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
3349 bytes, io_u->offset, io_u->ioprio);
3351 td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
3354 __td_io_u_unlock(td);
3357 static int add_iops_samples(struct thread_data *td, struct timespec *t)
3359 return __add_samples(td, &td->iops_sample_time, t, td->o.iops_avg_time,
3360 td->this_io_blocks, td->stat_io_blocks,
3361 td->ts.iops_stat, td->iops_log, false);
3365 * Returns msecs to next event
3367 int calc_log_samples(void)
3369 struct thread_data *td;
3370 unsigned int next = ~0U, tmp = 0, next_mod = 0, log_avg_msec_min = -1U;
3371 struct timespec now;
3373 long elapsed_time = 0;
3375 fio_gettime(&now, NULL);
3377 for_each_td(td, i) {
3378 elapsed_time = mtime_since_now(&td->epoch);
3382 if (in_ramp_time(td) ||
3383 !(td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING)) {
3384 next = min(td->o.iops_avg_time, td->o.bw_avg_time);
3388 (td->bw_log && !per_unit_log(td->bw_log))) {
3389 tmp = add_bw_samples(td, &now);
3392 log_avg_msec_min = min(log_avg_msec_min, (unsigned int)td->bw_log->avg_msec);
3394 if (!td->iops_log ||
3395 (td->iops_log && !per_unit_log(td->iops_log))) {
3396 tmp = add_iops_samples(td, &now);
3399 log_avg_msec_min = min(log_avg_msec_min, (unsigned int)td->iops_log->avg_msec);
3406 /* if log_avg_msec_min has not been changed, set it to 0 */
3407 if (log_avg_msec_min == -1U)
3408 log_avg_msec_min = 0;
3410 if (log_avg_msec_min == 0)
3411 next_mod = elapsed_time;
3413 next_mod = elapsed_time % log_avg_msec_min;
3415 /* correction to keep the time on the log avg msec boundary */
3416 next = min(next, (log_avg_msec_min - next_mod));
3418 return next == ~0U ? 0 : next;
3421 void stat_init(void)
3423 stat_sem = fio_sem_init(FIO_SEM_UNLOCKED);
3426 void stat_exit(void)
3429 * When we have the mutex, we know out-of-band access to it
3432 fio_sem_down(stat_sem);
3433 fio_sem_remove(stat_sem);
3437 * Called from signal handler. Wake up status thread.
3439 void show_running_run_stats(void)
3444 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
3446 /* Ignore io_u's which span multiple blocks--they will just get
3447 * inaccurate counts. */
3448 int idx = (io_u->offset - io_u->file->file_offset)
3449 / td->o.bs[DDIR_TRIM];
3450 uint32_t *info = &td->ts.block_infos[idx];
3451 assert(idx < td->ts.nr_block_infos);