projects / fio.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
stat: add comment on why we need return
[fio.git] / stat.c
... / ...
CommitLineData
1#include <stdio.h>
2#include <string.h>
3#include <sys/time.h>
4#include <sys/types.h>
5#include <sys/stat.h>
6#include <dirent.h>
7#include <libgen.h>
8#include <math.h>
9
10#include "fio.h"
11#include "diskutil.h"
12#include "lib/ieee754.h"
13#include "json.h"
14#include "lib/getrusage.h"
15#include "idletime.h"
16#include "lib/pow2.h"
17
18struct fio_mutex *stat_mutex;
19
20void update_rusage_stat(struct thread_data *td)
21{
22 struct thread_stat *ts = &td->ts;
23
24 fio_getrusage(&td->ru_end);
25 ts->usr_time += mtime_since(&td->ru_start.ru_utime,
26 &td->ru_end.ru_utime);
27 ts->sys_time += mtime_since(&td->ru_start.ru_stime,
28 &td->ru_end.ru_stime);
29 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
30 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
31 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
32 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
33
34 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
35}
36
37/*
38 * Given a latency, return the index of the corresponding bucket in
39 * the structure tracking percentiles.
40 *
41 * (1) find the group (and error bits) that the value (latency)
42 * belongs to by looking at its MSB. (2) find the bucket number in the
43 * group by looking at the index bits.
44 *
45 */
46static unsigned int plat_val_to_idx(unsigned int val)
47{
48 unsigned int msb, error_bits, base, offset, idx;
49
50 /* Find MSB starting from bit 0 */
51 if (val == 0)
52 msb = 0;
53 else
54 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
55
56 /*
57 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
58 * all bits of the sample as index
59 */
60 if (msb <= FIO_IO_U_PLAT_BITS)
61 return val;
62
63 /* Compute the number of error bits to discard*/
64 error_bits = msb - FIO_IO_U_PLAT_BITS;
65
66 /* Compute the number of buckets before the group */
67 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
68
69 /*
70 * Discard the error bits and apply the mask to find the
71 * index for the buckets in the group
72 */
73 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
74
75 /* Make sure the index does not exceed (array size - 1) */
76 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
77 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
78
79 return idx;
80}
81
82/*
83 * Convert the given index of the bucket array to the value
84 * represented by the bucket
85 */
86static unsigned int plat_idx_to_val(unsigned int idx)
87{
88 unsigned int error_bits, k, base;
89
90 assert(idx < FIO_IO_U_PLAT_NR);
91
92 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
93 * all bits of the sample as index */
94 if (idx < (FIO_IO_U_PLAT_VAL << 1))
95 return idx;
96
97 /* Find the group and compute the minimum value of that group */
98 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
99 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
100
101 /* Find its bucket number of the group */
102 k = idx % FIO_IO_U_PLAT_VAL;
103
104 /* Return the mean of the range of the bucket */
105 return base + ((k + 0.5) * (1 << error_bits));
106}
107
108static int double_cmp(const void *a, const void *b)
109{
110 const fio_fp64_t fa = *(const fio_fp64_t *) a;
111 const fio_fp64_t fb = *(const fio_fp64_t *) b;
112 int cmp = 0;
113
114 if (fa.u.f > fb.u.f)
115 cmp = 1;
116 else if (fa.u.f < fb.u.f)
117 cmp = -1;
118
119 return cmp;
120}
121
122unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
123 fio_fp64_t *plist, unsigned int **output,
124 unsigned int *maxv, unsigned int *minv)
125{
126 unsigned long sum = 0;
127 unsigned int len, i, j = 0;
128 unsigned int oval_len = 0;
129 unsigned int *ovals = NULL;
130 int is_last;
131
132 *minv = -1U;
133 *maxv = 0;
134
135 len = 0;
136 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
137 len++;
138
139 if (!len)
140 return 0;
141
142 /*
143 * Sort the percentile list. Note that it may already be sorted if
144 * we are using the default values, but since it's a short list this
145 * isn't a worry. Also note that this does not work for NaN values.
146 */
147 if (len > 1)
148 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
149
150 /*
151 * Calculate bucket values, note down max and min values
152 */
153 is_last = 0;
154 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
155 sum += io_u_plat[i];
156 while (sum >= (plist[j].u.f / 100.0 * nr)) {
157 assert(plist[j].u.f <= 100.0);
158
159 if (j == oval_len) {
160 oval_len += 100;
161 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
162 }
163
164 ovals[j] = plat_idx_to_val(i);
165 if (ovals[j] < *minv)
166 *minv = ovals[j];
167 if (ovals[j] > *maxv)
168 *maxv = ovals[j];
169
170 is_last = (j == len - 1);
171 if (is_last)
172 break;
173
174 j++;
175 }
176 }
177
178 *output = ovals;
179 return len;
180}
181
182/*
183 * Find and display the p-th percentile of clat
184 */
185static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
186 fio_fp64_t *plist, unsigned int precision)
187{
188 unsigned int len, j = 0, minv, maxv;
189 unsigned int *ovals;
190 int is_last, per_line, scale_down;
191 char fmt[32];
192
193 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
194 if (!len)
195 goto out;
196
197 /*
198 * We default to usecs, but if the value range is such that we
199 * should scale down to msecs, do that.
200 */
201 if (minv > 2000 && maxv > 99999) {
202 scale_down = 1;
203 log_info(" clat percentiles (msec):\n |");
204 } else {
205 scale_down = 0;
206 log_info(" clat percentiles (usec):\n |");
207 }
208
209 snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
210 per_line = (80 - 7) / (precision + 14);
211
212 for (j = 0; j < len; j++) {
213 char fbuf[16], *ptr = fbuf;
214
215 /* for formatting */
216 if (j != 0 && (j % per_line) == 0)
217 log_info(" |");
218
219 /* end of the list */
220 is_last = (j == len - 1);
221
222 if (plist[j].u.f < 10.0)
223 ptr += sprintf(fbuf, " ");
224
225 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
226
227 if (scale_down)
228 ovals[j] = (ovals[j] + 999) / 1000;
229
230 log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
231
232 if (is_last)
233 break;
234
235 if ((j % per_line) == per_line - 1) /* for formatting */
236 log_info("\n");
237 }
238
239out:
240 if (ovals)
241 free(ovals);
242}
243
244int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
245 double *mean, double *dev)
246{
247 double n = (double) is->samples;
248
249 if (n == 0)
250 return 0;
251
252 *min = is->min_val;
253 *max = is->max_val;
254 *mean = is->mean.u.f;
255
256 if (n > 1.0)
257 *dev = sqrt(is->S.u.f / (n - 1.0));
258 else
259 *dev = 0;
260
261 return 1;
262}
263
264void show_group_stats(struct group_run_stats *rs)
265{
266 char *p1, *p2, *p3, *p4;
267 const char *str[] = { " READ", " WRITE" , " TRIM"};
268 int i;
269
270 log_info("\nRun status group %d (all jobs):\n", rs->groupid);
271
272 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
273 const int i2p = is_power_of_2(rs->kb_base);
274
275 if (!rs->max_run[i])
276 continue;
277
278 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
279 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
280 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
281 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
282
283 log_info("%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
284 " mint=%llumsec, maxt=%llumsec\n",
285 rs->unified_rw_rep ? " MIXED" : str[i],
286 p1, p2, p3, p4,
287 (unsigned long long) rs->min_run[i],
288 (unsigned long long) rs->max_run[i]);
289
290 free(p1);
291 free(p2);
292 free(p3);
293 free(p4);
294 }
295}
296
297void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
298{
299 int i;
300
301 /*
302 * Do depth distribution calculations
303 */
304 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
305 if (total) {
306 io_u_dist[i] = (double) map[i] / (double) total;
307 io_u_dist[i] *= 100.0;
308 if (io_u_dist[i] < 0.1 && map[i])
309 io_u_dist[i] = 0.1;
310 } else
311 io_u_dist[i] = 0.0;
312 }
313}
314
315static void stat_calc_lat(struct thread_stat *ts, double *dst,
316 unsigned int *src, int nr)
317{
318 unsigned long total = ddir_rw_sum(ts->total_io_u);
319 int i;
320
321 /*
322 * Do latency distribution calculations
323 */
324 for (i = 0; i < nr; i++) {
325 if (total) {
326 dst[i] = (double) src[i] / (double) total;
327 dst[i] *= 100.0;
328 if (dst[i] < 0.01 && src[i])
329 dst[i] = 0.01;
330 } else
331 dst[i] = 0.0;
332 }
333}
334
335void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
336{
337 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
338}
339
340void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
341{
342 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
343}
344
345static void display_lat(const char *name, unsigned long min, unsigned long max,
346 double mean, double dev)
347{
348 const char *base = "(usec)";
349 char *minp, *maxp;
350
351 if (!usec_to_msec(&min, &max, &mean, &dev))
352 base = "(msec)";
353
354 minp = num2str(min, 6, 1, 0, 0);
355 maxp = num2str(max, 6, 1, 0, 0);
356
357 log_info(" %s %s: min=%s, max=%s, avg=%5.02f,"
358 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
359
360 free(minp);
361 free(maxp);
362}
363
364static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
365 int ddir)
366{
367 const char *str[] = { "read ", "write", "trim" };
368 unsigned long min, max, runt;
369 unsigned long long bw, iops;
370 double mean, dev;
371 char *io_p, *bw_p, *iops_p;
372 int i2p;
373
374 assert(ddir_rw(ddir));
375
376 if (!ts->runtime[ddir])
377 return;
378
379 i2p = is_power_of_2(rs->kb_base);
380 runt = ts->runtime[ddir];
381
382 bw = (1000 * ts->io_bytes[ddir]) / runt;
383 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
384 bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
385
386 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
387 iops_p = num2str(iops, 6, 1, 0, 0);
388
389 log_info(" %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
390 rs->unified_rw_rep ? "mixed" : str[ddir],
391 io_p, bw_p, iops_p,
392 (unsigned long long) ts->runtime[ddir]);
393
394 free(io_p);
395 free(bw_p);
396 free(iops_p);
397
398 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
399 display_lat("slat", min, max, mean, dev);
400 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
401 display_lat("clat", min, max, mean, dev);
402 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
403 display_lat(" lat", min, max, mean, dev);
404
405 if (ts->clat_percentiles) {
406 show_clat_percentiles(ts->io_u_plat[ddir],
407 ts->clat_stat[ddir].samples,
408 ts->percentile_list,
409 ts->percentile_precision);
410 }
411 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
412 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
413 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
414
415 if (rs->unit_base == 1) {
416 min *= 8.0;
417 max *= 8.0;
418 mean *= 8.0;
419 dev *= 8.0;
420 }
421
422 if (rs->agg[ddir]) {
423 p_of_agg = mean * 100 / (double) rs->agg[ddir];
424 if (p_of_agg > 100.0)
425 p_of_agg = 100.0;
426 }
427
428 if (mean > fkb_base * fkb_base) {
429 min /= fkb_base;
430 max /= fkb_base;
431 mean /= fkb_base;
432 dev /= fkb_base;
433 bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
434 }
435
436 log_info(" bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
437 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
438 p_of_agg, mean, dev);
439 }
440}
441
442static int show_lat(double *io_u_lat, int nr, const char **ranges,
443 const char *msg)
444{
445 int new_line = 1, i, line = 0, shown = 0;
446
447 for (i = 0; i < nr; i++) {
448 if (io_u_lat[i] <= 0.0)
449 continue;
450 shown = 1;
451 if (new_line) {
452 if (line)
453 log_info("\n");
454 log_info(" lat (%s) : ", msg);
455 new_line = 0;
456 line = 0;
457 }
458 if (line)
459 log_info(", ");
460 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
461 line++;
462 if (line == 5)
463 new_line = 1;
464 }
465
466 if (shown)
467 log_info("\n");
468
469 return shown;
470}
471
472static void show_lat_u(double *io_u_lat_u)
473{
474 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
475 "250=", "500=", "750=", "1000=", };
476
477 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
478}
479
480static void show_lat_m(double *io_u_lat_m)
481{
482 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
483 "250=", "500=", "750=", "1000=", "2000=",
484 ">=2000=", };
485
486 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
487}
488
489static void show_latencies(struct thread_stat *ts)
490{
491 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
492 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
493
494 stat_calc_lat_u(ts, io_u_lat_u);
495 stat_calc_lat_m(ts, io_u_lat_m);
496
497 show_lat_u(io_u_lat_u);
498 show_lat_m(io_u_lat_m);
499}
500
501static int block_state_category(int block_state)
502{
503 switch (block_state) {
504 case BLOCK_STATE_UNINIT:
505 return 0;
506 case BLOCK_STATE_TRIMMED:
507 case BLOCK_STATE_WRITTEN:
508 return 1;
509 case BLOCK_STATE_WRITE_FAILURE:
510 case BLOCK_STATE_TRIM_FAILURE:
511 return 2;
512 default:
513 /* Silence compile warning on some BSDs and have a return */
514 assert(0);
515 return -1;
516 }
517}
518
519static int compare_block_infos(const void *bs1, const void *bs2)
520{
521 uint32_t block1 = *(uint32_t *)bs1;
522 uint32_t block2 = *(uint32_t *)bs2;
523 int state1 = BLOCK_INFO_STATE(block1);
524 int state2 = BLOCK_INFO_STATE(block2);
525 int bscat1 = block_state_category(state1);
526 int bscat2 = block_state_category(state2);
527 int cycles1 = BLOCK_INFO_TRIMS(block1);
528 int cycles2 = BLOCK_INFO_TRIMS(block2);
529
530 if (bscat1 < bscat2)
531 return -1;
532 if (bscat1 > bscat2)
533 return 1;
534
535 if (cycles1 < cycles2)
536 return -1;
537 if (cycles1 > cycles2)
538 return 1;
539
540 if (state1 < state2)
541 return -1;
542 if (state1 > state2)
543 return 1;
544
545 assert(block1 == block2);
546 return 0;
547}
548
549static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
550 fio_fp64_t *plist, unsigned int **percentiles,
551 unsigned int *types)
552{
553 int len = 0;
554 int i, nr_uninit;
555
556 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
557
558 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
559 len++;
560
561 if (!len)
562 return 0;
563
564 /*
565 * Sort the percentile list. Note that it may already be sorted if
566 * we are using the default values, but since it's a short list this
567 * isn't a worry. Also note that this does not work for NaN values.
568 */
569 if (len > 1)
570 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
571
572 nr_uninit = 0;
573 /* Start only after the uninit entries end */
574 for (nr_uninit = 0;
575 nr_uninit < nr_block_infos
576 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
577 nr_uninit ++)
578 ;
579
580 if (nr_uninit == nr_block_infos)
581 return 0;
582
583 *percentiles = calloc(len, sizeof(**percentiles));
584
585 for (i = 0; i < len; i++) {
586 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
587 + nr_uninit;
588 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
589 }
590
591 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
592 for (i = 0; i < nr_block_infos; i++)
593 types[BLOCK_INFO_STATE(block_infos[i])]++;
594
595 return len;
596}
597
598static const char *block_state_names[] = {
599 [BLOCK_STATE_UNINIT] = "unwritten",
600 [BLOCK_STATE_TRIMMED] = "trimmed",
601 [BLOCK_STATE_WRITTEN] = "written",
602 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
603 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
604};
605
606static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
607 fio_fp64_t *plist)
608{
609 int len, pos, i;
610 unsigned int *percentiles = NULL;
611 unsigned int block_state_counts[BLOCK_STATE_COUNT];
612
613 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
614 &percentiles, block_state_counts);
615
616 log_info(" block lifetime percentiles :\n |");
617 pos = 0;
618 for (i = 0; i < len; i++) {
619 uint32_t block_info = percentiles[i];
620#define LINE_LENGTH 75
621 char str[LINE_LENGTH];
622 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
623 plist[i].u.f, block_info,
624 i == len - 1 ? '\n' : ',');
625 assert(strln < LINE_LENGTH);
626 if (pos + strln > LINE_LENGTH) {
627 pos = 0;
628 log_info("\n |");
629 }
630 log_info("%s", str);
631 pos += strln;
632#undef LINE_LENGTH
633 }
634 if (percentiles)
635 free(percentiles);
636
637 log_info(" states :");
638 for (i = 0; i < BLOCK_STATE_COUNT; i++)
639 log_info(" %s=%u%c",
640 block_state_names[i], block_state_counts[i],
641 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
642}
643
644static void show_thread_status_normal(struct thread_stat *ts,
645 struct group_run_stats *rs)
646{
647 double usr_cpu, sys_cpu;
648 unsigned long runtime;
649 double io_u_dist[FIO_IO_U_MAP_NR];
650 time_t time_p;
651 char time_buf[32];
652
653 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
654 return;
655
656 time(&time_p);
657 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
658
659 if (!ts->error) {
660 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
661 ts->name, ts->groupid, ts->members,
662 ts->error, (int) ts->pid, time_buf);
663 } else {
664 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
665 ts->name, ts->groupid, ts->members,
666 ts->error, ts->verror, (int) ts->pid,
667 time_buf);
668 }
669
670 if (strlen(ts->description))
671 log_info(" Description : [%s]\n", ts->description);
672
673 if (ts->io_bytes[DDIR_READ])
674 show_ddir_status(rs, ts, DDIR_READ);
675 if (ts->io_bytes[DDIR_WRITE])
676 show_ddir_status(rs, ts, DDIR_WRITE);
677 if (ts->io_bytes[DDIR_TRIM])
678 show_ddir_status(rs, ts, DDIR_TRIM);
679
680 show_latencies(ts);
681
682 runtime = ts->total_run_time;
683 if (runtime) {
684 double runt = (double) runtime;
685
686 usr_cpu = (double) ts->usr_time * 100 / runt;
687 sys_cpu = (double) ts->sys_time * 100 / runt;
688 } else {
689 usr_cpu = 0;
690 sys_cpu = 0;
691 }
692
693 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
694 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
695 (unsigned long long) ts->ctx,
696 (unsigned long long) ts->majf,
697 (unsigned long long) ts->minf);
698
699 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
700 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
701 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
702 io_u_dist[1], io_u_dist[2],
703 io_u_dist[3], io_u_dist[4],
704 io_u_dist[5], io_u_dist[6]);
705
706 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
707 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
708 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
709 io_u_dist[1], io_u_dist[2],
710 io_u_dist[3], io_u_dist[4],
711 io_u_dist[5], io_u_dist[6]);
712 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
713 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
714 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
715 io_u_dist[1], io_u_dist[2],
716 io_u_dist[3], io_u_dist[4],
717 io_u_dist[5], io_u_dist[6]);
718 log_info(" issued : total=r=%llu/w=%llu/d=%llu,"
719 " short=r=%llu/w=%llu/d=%llu,"
720 " drop=r=%llu/w=%llu/d=%llu\n",
721 (unsigned long long) ts->total_io_u[0],
722 (unsigned long long) ts->total_io_u[1],
723 (unsigned long long) ts->total_io_u[2],
724 (unsigned long long) ts->short_io_u[0],
725 (unsigned long long) ts->short_io_u[1],
726 (unsigned long long) ts->short_io_u[2],
727 (unsigned long long) ts->drop_io_u[0],
728 (unsigned long long) ts->drop_io_u[1],
729 (unsigned long long) ts->drop_io_u[2]);
730 if (ts->continue_on_error) {
731 log_info(" errors : total=%llu, first_error=%d/<%s>\n",
732 (unsigned long long)ts->total_err_count,
733 ts->first_error,
734 strerror(ts->first_error));
735 }
736 if (ts->latency_depth) {
737 log_info(" latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
738 (unsigned long long)ts->latency_target,
739 (unsigned long long)ts->latency_window,
740 ts->latency_percentile.u.f,
741 ts->latency_depth);
742 }
743
744 if (ts->nr_block_infos)
745 show_block_infos(ts->nr_block_infos, ts->block_infos,
746 ts->percentile_list);
747}
748
749static void show_ddir_status_terse(struct thread_stat *ts,
750 struct group_run_stats *rs, int ddir)
751{
752 unsigned long min, max;
753 unsigned long long bw, iops;
754 unsigned int *ovals = NULL;
755 double mean, dev;
756 unsigned int len, minv, maxv;
757 int i;
758
759 assert(ddir_rw(ddir));
760
761 iops = bw = 0;
762 if (ts->runtime[ddir]) {
763 uint64_t runt = ts->runtime[ddir];
764
765 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
766 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
767 }
768
769 log_info(";%llu;%llu;%llu;%llu",
770 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
771 (unsigned long long) ts->runtime[ddir]);
772
773 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
774 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
775 else
776 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
777
778 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
779 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
780 else
781 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
782
783 if (ts->clat_percentiles) {
784 len = calc_clat_percentiles(ts->io_u_plat[ddir],
785 ts->clat_stat[ddir].samples,
786 ts->percentile_list, &ovals, &maxv,
787 &minv);
788 } else
789 len = 0;
790
791 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
792 if (i >= len) {
793 log_info(";0%%=0");
794 continue;
795 }
796 log_info(";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
797 }
798
799 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
800 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
801 else
802 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
803
804 if (ovals)
805 free(ovals);
806
807 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
808 double p_of_agg = 100.0;
809
810 if (rs->agg[ddir]) {
811 p_of_agg = mean * 100 / (double) rs->agg[ddir];
812 if (p_of_agg > 100.0)
813 p_of_agg = 100.0;
814 }
815
816 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
817 } else
818 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
819}
820
821static void add_ddir_status_json(struct thread_stat *ts,
822 struct group_run_stats *rs, int ddir, struct json_object *parent)
823{
824 unsigned long min, max;
825 unsigned long long bw;
826 unsigned int *ovals = NULL;
827 double mean, dev, iops;
828 unsigned int len, minv, maxv;
829 int i;
830 const char *ddirname[] = {"read", "write", "trim"};
831 struct json_object *dir_object, *tmp_object, *percentile_object;
832 char buf[120];
833 double p_of_agg = 100.0;
834
835 assert(ddir_rw(ddir));
836
837 if (ts->unified_rw_rep && ddir != DDIR_READ)
838 return;
839
840 dir_object = json_create_object();
841 json_object_add_value_object(parent,
842 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
843
844 bw = 0;
845 iops = 0.0;
846 if (ts->runtime[ddir]) {
847 uint64_t runt = ts->runtime[ddir];
848
849 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
850 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
851 }
852
853 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
854 json_object_add_value_int(dir_object, "bw", bw);
855 json_object_add_value_float(dir_object, "iops", iops);
856 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
857 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
858 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
859 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
860
861 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
862 min = max = 0;
863 mean = dev = 0.0;
864 }
865 tmp_object = json_create_object();
866 json_object_add_value_object(dir_object, "slat", tmp_object);
867 json_object_add_value_int(tmp_object, "min", min);
868 json_object_add_value_int(tmp_object, "max", max);
869 json_object_add_value_float(tmp_object, "mean", mean);
870 json_object_add_value_float(tmp_object, "stddev", dev);
871
872 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
873 min = max = 0;
874 mean = dev = 0.0;
875 }
876 tmp_object = json_create_object();
877 json_object_add_value_object(dir_object, "clat", tmp_object);
878 json_object_add_value_int(tmp_object, "min", min);
879 json_object_add_value_int(tmp_object, "max", max);
880 json_object_add_value_float(tmp_object, "mean", mean);
881 json_object_add_value_float(tmp_object, "stddev", dev);
882
883 if (ts->clat_percentiles) {
884 len = calc_clat_percentiles(ts->io_u_plat[ddir],
885 ts->clat_stat[ddir].samples,
886 ts->percentile_list, &ovals, &maxv,
887 &minv);
888 } else
889 len = 0;
890
891 percentile_object = json_create_object();
892 json_object_add_value_object(tmp_object, "percentile", percentile_object);
893 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
894 if (i >= len) {
895 json_object_add_value_int(percentile_object, "0.00", 0);
896 continue;
897 }
898 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
899 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
900 }
901
902 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
903 min = max = 0;
904 mean = dev = 0.0;
905 }
906 tmp_object = json_create_object();
907 json_object_add_value_object(dir_object, "lat", tmp_object);
908 json_object_add_value_int(tmp_object, "min", min);
909 json_object_add_value_int(tmp_object, "max", max);
910 json_object_add_value_float(tmp_object, "mean", mean);
911 json_object_add_value_float(tmp_object, "stddev", dev);
912 if (ovals)
913 free(ovals);
914
915 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
916 if (rs->agg[ddir]) {
917 p_of_agg = mean * 100 / (double) rs->agg[ddir];
918 if (p_of_agg > 100.0)
919 p_of_agg = 100.0;
920 }
921 } else {
922 min = max = 0;
923 p_of_agg = mean = dev = 0.0;
924 }
925 json_object_add_value_int(dir_object, "bw_min", min);
926 json_object_add_value_int(dir_object, "bw_max", max);
927 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
928 json_object_add_value_float(dir_object, "bw_mean", mean);
929 json_object_add_value_float(dir_object, "bw_dev", dev);
930}
931
932static void show_thread_status_terse_v2(struct thread_stat *ts,
933 struct group_run_stats *rs)
934{
935 double io_u_dist[FIO_IO_U_MAP_NR];
936 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
937 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
938 double usr_cpu, sys_cpu;
939 int i;
940
941 /* General Info */
942 log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error);
943 /* Log Read Status */
944 show_ddir_status_terse(ts, rs, DDIR_READ);
945 /* Log Write Status */
946 show_ddir_status_terse(ts, rs, DDIR_WRITE);
947 /* Log Trim Status */
948 show_ddir_status_terse(ts, rs, DDIR_TRIM);
949
950 /* CPU Usage */
951 if (ts->total_run_time) {
952 double runt = (double) ts->total_run_time;
953
954 usr_cpu = (double) ts->usr_time * 100 / runt;
955 sys_cpu = (double) ts->sys_time * 100 / runt;
956 } else {
957 usr_cpu = 0;
958 sys_cpu = 0;
959 }
960
961 log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
962 (unsigned long long) ts->ctx,
963 (unsigned long long) ts->majf,
964 (unsigned long long) ts->minf);
965
966 /* Calc % distribution of IO depths, usecond, msecond latency */
967 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
968 stat_calc_lat_u(ts, io_u_lat_u);
969 stat_calc_lat_m(ts, io_u_lat_m);
970
971 /* Only show fixed 7 I/O depth levels*/
972 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
973 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
974 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
975
976 /* Microsecond latency */
977 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
978 log_info(";%3.2f%%", io_u_lat_u[i]);
979 /* Millisecond latency */
980 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
981 log_info(";%3.2f%%", io_u_lat_m[i]);
982 /* Additional output if continue_on_error set - default off*/
983 if (ts->continue_on_error)
984 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
985 log_info("\n");
986
987 /* Additional output if description is set */
988 if (strlen(ts->description))
989 log_info(";%s", ts->description);
990
991 log_info("\n");
992}
993
994static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
995 struct group_run_stats *rs, int ver)
996{
997 double io_u_dist[FIO_IO_U_MAP_NR];
998 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
999 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1000 double usr_cpu, sys_cpu;
1001 int i;
1002
1003 /* General Info */
1004 log_info("%d;%s;%s;%d;%d", ver, fio_version_string,
1005 ts->name, ts->groupid, ts->error);
1006 /* Log Read Status */
1007 show_ddir_status_terse(ts, rs, DDIR_READ);
1008 /* Log Write Status */
1009 show_ddir_status_terse(ts, rs, DDIR_WRITE);
1010 /* Log Trim Status */
1011 if (ver == 4)
1012 show_ddir_status_terse(ts, rs, DDIR_TRIM);
1013
1014 /* CPU Usage */
1015 if (ts->total_run_time) {
1016 double runt = (double) ts->total_run_time;
1017
1018 usr_cpu = (double) ts->usr_time * 100 / runt;
1019 sys_cpu = (double) ts->sys_time * 100 / runt;
1020 } else {
1021 usr_cpu = 0;
1022 sys_cpu = 0;
1023 }
1024
1025 log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1026 (unsigned long long) ts->ctx,
1027 (unsigned long long) ts->majf,
1028 (unsigned long long) ts->minf);
1029
1030 /* Calc % distribution of IO depths, usecond, msecond latency */
1031 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1032 stat_calc_lat_u(ts, io_u_lat_u);
1033 stat_calc_lat_m(ts, io_u_lat_m);
1034
1035 /* Only show fixed 7 I/O depth levels*/
1036 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1037 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1038 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1039
1040 /* Microsecond latency */
1041 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1042 log_info(";%3.2f%%", io_u_lat_u[i]);
1043 /* Millisecond latency */
1044 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1045 log_info(";%3.2f%%", io_u_lat_m[i]);
1046
1047 /* disk util stats, if any */
1048 show_disk_util(1, NULL);
1049
1050 /* Additional output if continue_on_error set - default off*/
1051 if (ts->continue_on_error)
1052 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1053
1054 /* Additional output if description is set */
1055 if (strlen(ts->description))
1056 log_info(";%s", ts->description);
1057
1058 log_info("\n");
1059}
1060
1061static struct json_object *show_thread_status_json(struct thread_stat *ts,
1062 struct group_run_stats *rs)
1063{
1064 struct json_object *root, *tmp;
1065 double io_u_dist[FIO_IO_U_MAP_NR];
1066 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1067 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1068 double usr_cpu, sys_cpu;
1069 int i;
1070
1071 root = json_create_object();
1072 json_object_add_value_string(root, "jobname", ts->name);
1073 json_object_add_value_int(root, "groupid", ts->groupid);
1074 json_object_add_value_int(root, "error", ts->error);
1075
1076 add_ddir_status_json(ts, rs, DDIR_READ, root);
1077 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1078 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1079
1080 /* CPU Usage */
1081 if (ts->total_run_time) {
1082 double runt = (double) ts->total_run_time;
1083
1084 usr_cpu = (double) ts->usr_time * 100 / runt;
1085 sys_cpu = (double) ts->sys_time * 100 / runt;
1086 } else {
1087 usr_cpu = 0;
1088 sys_cpu = 0;
1089 }
1090 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1091 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1092 json_object_add_value_int(root, "ctx", ts->ctx);
1093 json_object_add_value_int(root, "majf", ts->majf);
1094 json_object_add_value_int(root, "minf", ts->minf);
1095
1096
1097 /* Calc % distribution of IO depths, usecond, msecond latency */
1098 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1099 stat_calc_lat_u(ts, io_u_lat_u);
1100 stat_calc_lat_m(ts, io_u_lat_m);
1101
1102 tmp = json_create_object();
1103 json_object_add_value_object(root, "iodepth_level", tmp);
1104 /* Only show fixed 7 I/O depth levels*/
1105 for (i = 0; i < 7; i++) {
1106 char name[20];
1107 if (i < 6)
1108 snprintf(name, 20, "%d", 1 << i);
1109 else
1110 snprintf(name, 20, ">=%d", 1 << i);
1111 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1112 }
1113
1114 tmp = json_create_object();
1115 json_object_add_value_object(root, "latency_us", tmp);
1116 /* Microsecond latency */
1117 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1118 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1119 "250", "500", "750", "1000", };
1120 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1121 }
1122 /* Millisecond latency */
1123 tmp = json_create_object();
1124 json_object_add_value_object(root, "latency_ms", tmp);
1125 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1126 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1127 "250", "500", "750", "1000", "2000",
1128 ">=2000", };
1129 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1130 }
1131
1132 /* Additional output if continue_on_error set - default off*/
1133 if (ts->continue_on_error) {
1134 json_object_add_value_int(root, "total_err", ts->total_err_count);
1135 json_object_add_value_int(root, "first_error", ts->first_error);
1136 }
1137
1138 if (ts->latency_depth) {
1139 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1140 json_object_add_value_int(root, "latency_target", ts->latency_target);
1141 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1142 json_object_add_value_int(root, "latency_window", ts->latency_window);
1143 }
1144
1145 /* Additional output if description is set */
1146 if (strlen(ts->description))
1147 json_object_add_value_string(root, "desc", ts->description);
1148
1149 if (ts->nr_block_infos) {
1150 /* Block error histogram and types */
1151 int len;
1152 unsigned int *percentiles = NULL;
1153 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1154
1155 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1156 ts->percentile_list,
1157 &percentiles, block_state_counts);
1158
1159 if (len) {
1160 struct json_object *block, *percentile_object, *states;
1161 int state, i;
1162 block = json_create_object();
1163 json_object_add_value_object(root, "block", block);
1164
1165 percentile_object = json_create_object();
1166 json_object_add_value_object(block, "percentiles",
1167 percentile_object);
1168 for (i = 0; i < len; i++) {
1169 char buf[20];
1170 snprintf(buf, sizeof(buf), "%f",
1171 ts->percentile_list[i].u.f);
1172 json_object_add_value_int(percentile_object,
1173 (const char *)buf,
1174 percentiles[i]);
1175 }
1176
1177 states = json_create_object();
1178 json_object_add_value_object(block, "states", states);
1179 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1180 json_object_add_value_int(states,
1181 block_state_names[state],
1182 block_state_counts[state]);
1183 }
1184 free(percentiles);
1185 }
1186 }
1187
1188 return root;
1189}
1190
1191static void show_thread_status_terse(struct thread_stat *ts,
1192 struct group_run_stats *rs)
1193{
1194 if (terse_version == 2)
1195 show_thread_status_terse_v2(ts, rs);
1196 else if (terse_version == 3 || terse_version == 4)
1197 show_thread_status_terse_v3_v4(ts, rs, terse_version);
1198 else
1199 log_err("fio: bad terse version!? %d\n", terse_version);
1200}
1201
1202struct json_object *show_thread_status(struct thread_stat *ts,
1203 struct group_run_stats *rs)
1204{
1205 if (output_format == FIO_OUTPUT_TERSE)
1206 show_thread_status_terse(ts, rs);
1207 else if (output_format == FIO_OUTPUT_JSON)
1208 return show_thread_status_json(ts, rs);
1209 else
1210 show_thread_status_normal(ts, rs);
1211 return NULL;
1212}
1213
1214static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
1215{
1216 double mean, S;
1217
1218 if (src->samples == 0)
1219 return;
1220
1221 dst->min_val = min(dst->min_val, src->min_val);
1222 dst->max_val = max(dst->max_val, src->max_val);
1223
1224 /*
1225 * Compute new mean and S after the merge
1226 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1227 * #Parallel_algorithm>
1228 */
1229 if (nr == 1) {
1230 mean = src->mean.u.f;
1231 S = src->S.u.f;
1232 } else {
1233 double delta = src->mean.u.f - dst->mean.u.f;
1234
1235 mean = ((src->mean.u.f * src->samples) +
1236 (dst->mean.u.f * dst->samples)) /
1237 (dst->samples + src->samples);
1238
1239 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1240 (dst->samples * src->samples) /
1241 (dst->samples + src->samples);
1242 }
1243
1244 dst->samples += src->samples;
1245 dst->mean.u.f = mean;
1246 dst->S.u.f = S;
1247}
1248
1249void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1250{
1251 int i;
1252
1253 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1254 if (dst->max_run[i] < src->max_run[i])
1255 dst->max_run[i] = src->max_run[i];
1256 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1257 dst->min_run[i] = src->min_run[i];
1258 if (dst->max_bw[i] < src->max_bw[i])
1259 dst->max_bw[i] = src->max_bw[i];
1260 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1261 dst->min_bw[i] = src->min_bw[i];
1262
1263 dst->io_kb[i] += src->io_kb[i];
1264 dst->agg[i] += src->agg[i];
1265 }
1266
1267 if (!dst->kb_base)
1268 dst->kb_base = src->kb_base;
1269 if (!dst->unit_base)
1270 dst->unit_base = src->unit_base;
1271}
1272
1273void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
1274{
1275 int l, k;
1276
1277 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1278 if (!dst->unified_rw_rep) {
1279 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
1280 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
1281 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
1282 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
1283
1284 dst->io_bytes[l] += src->io_bytes[l];
1285
1286 if (dst->runtime[l] < src->runtime[l])
1287 dst->runtime[l] = src->runtime[l];
1288 } else {
1289 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr);
1290 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr);
1291 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr);
1292 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr);
1293
1294 dst->io_bytes[0] += src->io_bytes[l];
1295
1296 if (dst->runtime[0] < src->runtime[l])
1297 dst->runtime[0] = src->runtime[l];
1298 }
1299 }
1300
1301 dst->usr_time += src->usr_time;
1302 dst->sys_time += src->sys_time;
1303 dst->ctx += src->ctx;
1304 dst->majf += src->majf;
1305 dst->minf += src->minf;
1306
1307 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1308 dst->io_u_map[k] += src->io_u_map[k];
1309 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1310 dst->io_u_submit[k] += src->io_u_submit[k];
1311 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1312 dst->io_u_complete[k] += src->io_u_complete[k];
1313 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1314 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1315 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1316 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1317
1318 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1319 if (!dst->unified_rw_rep) {
1320 dst->total_io_u[k] += src->total_io_u[k];
1321 dst->short_io_u[k] += src->short_io_u[k];
1322 dst->drop_io_u[k] += src->drop_io_u[k];
1323 } else {
1324 dst->total_io_u[0] += src->total_io_u[k];
1325 dst->short_io_u[0] += src->short_io_u[k];
1326 dst->drop_io_u[0] += src->drop_io_u[k];
1327 }
1328 }
1329
1330 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1331 int m;
1332
1333 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1334 if (!dst->unified_rw_rep)
1335 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1336 else
1337 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1338 }
1339 }
1340
1341 dst->total_run_time += src->total_run_time;
1342 dst->total_submit += src->total_submit;
1343 dst->total_complete += src->total_complete;
1344}
1345
1346void init_group_run_stat(struct group_run_stats *gs)
1347{
1348 int i;
1349 memset(gs, 0, sizeof(*gs));
1350
1351 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1352 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1353}
1354
1355void init_thread_stat(struct thread_stat *ts)
1356{
1357 int j;
1358
1359 memset(ts, 0, sizeof(*ts));
1360
1361 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1362 ts->lat_stat[j].min_val = -1UL;
1363 ts->clat_stat[j].min_val = -1UL;
1364 ts->slat_stat[j].min_val = -1UL;
1365 ts->bw_stat[j].min_val = -1UL;
1366 }
1367 ts->groupid = -1;
1368}
1369
1370void __show_run_stats(void)
1371{
1372 struct group_run_stats *runstats, *rs;
1373 struct thread_data *td;
1374 struct thread_stat *threadstats, *ts;
1375 int i, j, k, nr_ts, last_ts, idx;
1376 int kb_base_warned = 0;
1377 int unit_base_warned = 0;
1378 struct json_object *root = NULL;
1379 struct json_array *array = NULL;
1380 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1381
1382 for (i = 0; i < groupid + 1; i++)
1383 init_group_run_stat(&runstats[i]);
1384
1385 /*
1386 * find out how many threads stats we need. if group reporting isn't
1387 * enabled, it's one-per-td.
1388 */
1389 nr_ts = 0;
1390 last_ts = -1;
1391 for_each_td(td, i) {
1392 if (!td->o.group_reporting) {
1393 nr_ts++;
1394 continue;
1395 }
1396 if (last_ts == td->groupid)
1397 continue;
1398
1399 last_ts = td->groupid;
1400 nr_ts++;
1401 }
1402
1403 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1404
1405 for (i = 0; i < nr_ts; i++)
1406 init_thread_stat(&threadstats[i]);
1407
1408 j = 0;
1409 last_ts = -1;
1410 idx = 0;
1411 for_each_td(td, i) {
1412 if (idx && (!td->o.group_reporting ||
1413 (td->o.group_reporting && last_ts != td->groupid))) {
1414 idx = 0;
1415 j++;
1416 }
1417
1418 last_ts = td->groupid;
1419
1420 ts = &threadstats[j];
1421
1422 ts->clat_percentiles = td->o.clat_percentiles;
1423 ts->percentile_precision = td->o.percentile_precision;
1424 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1425
1426 idx++;
1427 ts->members++;
1428
1429 if (ts->groupid == -1) {
1430 /*
1431 * These are per-group shared already
1432 */
1433 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1434 if (td->o.description)
1435 strncpy(ts->description, td->o.description,
1436 FIO_JOBDESC_SIZE - 1);
1437 else
1438 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1439
1440 /*
1441 * If multiple entries in this group, this is
1442 * the first member.
1443 */
1444 ts->thread_number = td->thread_number;
1445 ts->groupid = td->groupid;
1446
1447 /*
1448 * first pid in group, not very useful...
1449 */
1450 ts->pid = td->pid;
1451
1452 ts->kb_base = td->o.kb_base;
1453 ts->unit_base = td->o.unit_base;
1454 ts->unified_rw_rep = td->o.unified_rw_rep;
1455 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1456 log_info("fio: kb_base differs for jobs in group, using"
1457 " %u as the base\n", ts->kb_base);
1458 kb_base_warned = 1;
1459 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1460 log_info("fio: unit_base differs for jobs in group, using"
1461 " %u as the base\n", ts->unit_base);
1462 unit_base_warned = 1;
1463 }
1464
1465 ts->continue_on_error = td->o.continue_on_error;
1466 ts->total_err_count += td->total_err_count;
1467 ts->first_error = td->first_error;
1468 if (!ts->error) {
1469 if (!td->error && td->o.continue_on_error &&
1470 td->first_error) {
1471 ts->error = td->first_error;
1472 ts->verror[sizeof(ts->verror) - 1] = '\0';
1473 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1474 } else if (td->error) {
1475 ts->error = td->error;
1476 ts->verror[sizeof(ts->verror) - 1] = '\0';
1477 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1478 }
1479 }
1480
1481 ts->latency_depth = td->latency_qd;
1482 ts->latency_target = td->o.latency_target;
1483 ts->latency_percentile = td->o.latency_percentile;
1484 ts->latency_window = td->o.latency_window;
1485
1486 ts->nr_block_infos = td->ts.nr_block_infos;
1487 for (k = 0; k < ts->nr_block_infos; k++)
1488 ts->block_infos[k] = td->ts.block_infos[k];
1489
1490 sum_thread_stats(ts, &td->ts, idx);
1491 }
1492
1493 for (i = 0; i < nr_ts; i++) {
1494 unsigned long long bw;
1495
1496 ts = &threadstats[i];
1497 rs = &runstats[ts->groupid];
1498 rs->kb_base = ts->kb_base;
1499 rs->unit_base = ts->unit_base;
1500 rs->unified_rw_rep += ts->unified_rw_rep;
1501
1502 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1503 if (!ts->runtime[j])
1504 continue;
1505 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1506 rs->min_run[j] = ts->runtime[j];
1507 if (ts->runtime[j] > rs->max_run[j])
1508 rs->max_run[j] = ts->runtime[j];
1509
1510 bw = 0;
1511 if (ts->runtime[j]) {
1512 unsigned long runt = ts->runtime[j];
1513 unsigned long long kb;
1514
1515 kb = ts->io_bytes[j] / rs->kb_base;
1516 bw = kb * 1000 / runt;
1517 }
1518 if (bw < rs->min_bw[j])
1519 rs->min_bw[j] = bw;
1520 if (bw > rs->max_bw[j])
1521 rs->max_bw[j] = bw;
1522
1523 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1524 }
1525 }
1526
1527 for (i = 0; i < groupid + 1; i++) {
1528 int ddir;
1529
1530 rs = &runstats[i];
1531
1532 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1533 if (rs->max_run[ddir])
1534 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1535 rs->max_run[ddir];
1536 }
1537 }
1538
1539 /*
1540 * don't overwrite last signal output
1541 */
1542 if (output_format == FIO_OUTPUT_NORMAL)
1543 log_info("\n");
1544 else if (output_format == FIO_OUTPUT_JSON) {
1545 char time_buf[32];
1546 time_t time_p;
1547
1548 time(&time_p);
1549 os_ctime_r((const time_t *) &time_p, time_buf,
1550 sizeof(time_buf));
1551 time_buf[strlen(time_buf) - 1] = '\0';
1552
1553 root = json_create_object();
1554 json_object_add_value_string(root, "fio version", fio_version_string);
1555 json_object_add_value_int(root, "timestamp", time_p);
1556 json_object_add_value_string(root, "time", time_buf);
1557 array = json_create_array();
1558 json_object_add_value_array(root, "jobs", array);
1559 }
1560
1561 for (i = 0; i < nr_ts; i++) {
1562 ts = &threadstats[i];
1563 rs = &runstats[ts->groupid];
1564
1565 if (is_backend)
1566 fio_server_send_ts(ts, rs);
1567 else if (output_format == FIO_OUTPUT_TERSE)
1568 show_thread_status_terse(ts, rs);
1569 else if (output_format == FIO_OUTPUT_JSON) {
1570 struct json_object *tmp = show_thread_status_json(ts, rs);
1571 json_array_add_value_object(array, tmp);
1572 } else
1573 show_thread_status_normal(ts, rs);
1574 }
1575 if (output_format == FIO_OUTPUT_JSON) {
1576 /* disk util stats, if any */
1577 show_disk_util(1, root);
1578
1579 show_idle_prof_stats(FIO_OUTPUT_JSON, root);
1580
1581 json_print_object(root);
1582 log_info("\n");
1583 json_free_object(root);
1584 }
1585
1586 for (i = 0; i < groupid + 1; i++) {
1587 rs = &runstats[i];
1588
1589 rs->groupid = i;
1590 if (is_backend)
1591 fio_server_send_gs(rs);
1592 else if (output_format == FIO_OUTPUT_NORMAL)
1593 show_group_stats(rs);
1594 }
1595
1596 if (is_backend)
1597 fio_server_send_du();
1598 else if (output_format == FIO_OUTPUT_NORMAL) {
1599 show_disk_util(0, NULL);
1600 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL);
1601 }
1602
1603 if ( !(output_format == FIO_OUTPUT_TERSE) && append_terse_output) {
1604 log_info("\nAdditional Terse Output:\n");
1605
1606 for (i = 0; i < nr_ts; i++) {
1607 ts = &threadstats[i];
1608 rs = &runstats[ts->groupid];
1609 show_thread_status_terse(ts, rs);
1610 }
1611 }
1612
1613 log_info_flush();
1614 free(runstats);
1615 free(threadstats);
1616}
1617
1618void show_run_stats(void)
1619{
1620 fio_mutex_down(stat_mutex);
1621 __show_run_stats();
1622 fio_mutex_up(stat_mutex);
1623}
1624
1625void __show_running_run_stats(void)
1626{
1627 struct thread_data *td;
1628 unsigned long long *rt;
1629 struct timeval tv;
1630 int i;
1631
1632 fio_mutex_down(stat_mutex);
1633
1634 rt = malloc(thread_number * sizeof(unsigned long long));
1635 fio_gettime(&tv, NULL);
1636
1637 for_each_td(td, i) {
1638 rt[i] = mtime_since(&td->start, &tv);
1639 if (td_read(td) && td->io_bytes[DDIR_READ])
1640 td->ts.runtime[DDIR_READ] += rt[i];
1641 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1642 td->ts.runtime[DDIR_WRITE] += rt[i];
1643 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1644 td->ts.runtime[DDIR_TRIM] += rt[i];
1645
1646 td->update_rusage = 1;
1647 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1648 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1649 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1650 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1651 }
1652
1653 for_each_td(td, i) {
1654 if (td->runstate >= TD_EXITED)
1655 continue;
1656 if (td->rusage_sem) {
1657 td->update_rusage = 1;
1658 fio_mutex_down(td->rusage_sem);
1659 }
1660 td->update_rusage = 0;
1661 }
1662
1663 __show_run_stats();
1664
1665 for_each_td(td, i) {
1666 if (td_read(td) && td->io_bytes[DDIR_READ])
1667 td->ts.runtime[DDIR_READ] -= rt[i];
1668 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1669 td->ts.runtime[DDIR_WRITE] -= rt[i];
1670 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1671 td->ts.runtime[DDIR_TRIM] -= rt[i];
1672 }
1673
1674 free(rt);
1675 fio_mutex_up(stat_mutex);
1676}
1677
1678static int status_interval_init;
1679static struct timeval status_time;
1680static int status_file_disabled;
1681
1682#define FIO_STATUS_FILE "fio-dump-status"
1683
1684static int check_status_file(void)
1685{
1686 struct stat sb;
1687 const char *temp_dir;
1688 char fio_status_file_path[PATH_MAX];
1689
1690 if (status_file_disabled)
1691 return 0;
1692
1693 temp_dir = getenv("TMPDIR");
1694 if (temp_dir == NULL) {
1695 temp_dir = getenv("TEMP");
1696 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1697 temp_dir = NULL;
1698 }
1699 if (temp_dir == NULL)
1700 temp_dir = "/tmp";
1701
1702 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1703
1704 if (stat(fio_status_file_path, &sb))
1705 return 0;
1706
1707 if (unlink(fio_status_file_path) < 0) {
1708 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1709 strerror(errno));
1710 log_err("fio: disabling status file updates\n");
1711 status_file_disabled = 1;
1712 }
1713
1714 return 1;
1715}
1716
1717void check_for_running_stats(void)
1718{
1719 if (status_interval) {
1720 if (!status_interval_init) {
1721 fio_gettime(&status_time, NULL);
1722 status_interval_init = 1;
1723 } else if (mtime_since_now(&status_time) >= status_interval) {
1724 show_running_run_stats();
1725 fio_gettime(&status_time, NULL);
1726 return;
1727 }
1728 }
1729 if (check_status_file()) {
1730 show_running_run_stats();
1731 return;
1732 }
1733}
1734
1735static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1736{
1737 double val = data;
1738 double delta;
1739
1740 if (data > is->max_val)
1741 is->max_val = data;
1742 if (data < is->min_val)
1743 is->min_val = data;
1744
1745 delta = val - is->mean.u.f;
1746 if (delta) {
1747 is->mean.u.f += delta / (is->samples + 1.0);
1748 is->S.u.f += delta * (val - is->mean.u.f);
1749 }
1750
1751 is->samples++;
1752}
1753
1754static void __add_log_sample(struct io_log *iolog, unsigned long val,
1755 enum fio_ddir ddir, unsigned int bs,
1756 unsigned long t, uint64_t offset)
1757{
1758 uint64_t nr_samples = iolog->nr_samples;
1759 struct io_sample *s;
1760
1761 if (iolog->disabled)
1762 return;
1763
1764 if (!iolog->nr_samples)
1765 iolog->avg_last = t;
1766
1767 if (iolog->nr_samples == iolog->max_samples) {
1768 size_t new_size;
1769 void *new_log;
1770
1771 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1772
1773 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1774 if (iolog_flush(iolog, 0)) {
1775 log_err("fio: failed flushing iolog! Will stop logging.\n");
1776 iolog->disabled = 1;
1777 return;
1778 }
1779 nr_samples = iolog->nr_samples;
1780 } else {
1781 new_log = realloc(iolog->log, new_size);
1782 if (!new_log) {
1783 log_err("fio: failed extending iolog! Will stop logging.\n");
1784 iolog->disabled = 1;
1785 return;
1786 }
1787 iolog->log = new_log;
1788 iolog->max_samples <<= 1;
1789 }
1790 }
1791
1792 s = get_sample(iolog, nr_samples);
1793
1794 s->val = val;
1795 s->time = t;
1796 io_sample_set_ddir(iolog, s, ddir);
1797 s->bs = bs;
1798
1799 if (iolog->log_offset) {
1800 struct io_sample_offset *so = (void *) s;
1801
1802 so->offset = offset;
1803 }
1804
1805 iolog->nr_samples++;
1806}
1807
1808static inline void reset_io_stat(struct io_stat *ios)
1809{
1810 ios->max_val = ios->min_val = ios->samples = 0;
1811 ios->mean.u.f = ios->S.u.f = 0;
1812}
1813
1814void reset_io_stats(struct thread_data *td)
1815{
1816 struct thread_stat *ts = &td->ts;
1817 int i, j;
1818
1819 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1820 reset_io_stat(&ts->clat_stat[i]);
1821 reset_io_stat(&ts->slat_stat[i]);
1822 reset_io_stat(&ts->lat_stat[i]);
1823 reset_io_stat(&ts->bw_stat[i]);
1824 reset_io_stat(&ts->iops_stat[i]);
1825
1826 ts->io_bytes[i] = 0;
1827 ts->runtime[i] = 0;
1828
1829 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1830 ts->io_u_plat[i][j] = 0;
1831 }
1832
1833 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1834 ts->io_u_map[i] = 0;
1835 ts->io_u_submit[i] = 0;
1836 ts->io_u_complete[i] = 0;
1837 ts->io_u_lat_u[i] = 0;
1838 ts->io_u_lat_m[i] = 0;
1839 ts->total_submit = 0;
1840 ts->total_complete = 0;
1841 }
1842
1843 for (i = 0; i < 3; i++) {
1844 ts->total_io_u[i] = 0;
1845 ts->short_io_u[i] = 0;
1846 ts->drop_io_u[i] = 0;
1847 }
1848}
1849
1850static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed)
1851{
1852 /*
1853 * Note an entry in the log. Use the mean from the logged samples,
1854 * making sure to properly round up. Only write a log entry if we
1855 * had actual samples done.
1856 */
1857 if (iolog->avg_window[DDIR_READ].samples) {
1858 unsigned long mr;
1859
1860 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
1861 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0);
1862 }
1863 if (iolog->avg_window[DDIR_WRITE].samples) {
1864 unsigned long mw;
1865
1866 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
1867 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0);
1868 }
1869 if (iolog->avg_window[DDIR_TRIM].samples) {
1870 unsigned long mw;
1871
1872 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
1873 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0);
1874 }
1875
1876 reset_io_stat(&iolog->avg_window[DDIR_READ]);
1877 reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
1878 reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
1879}
1880
1881static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1882 unsigned long val, enum fio_ddir ddir,
1883 unsigned int bs, uint64_t offset)
1884{
1885 unsigned long elapsed, this_window;
1886
1887 if (!ddir_rw(ddir))
1888 return;
1889
1890 elapsed = mtime_since_now(&td->epoch);
1891
1892 /*
1893 * If no time averaging, just add the log sample.
1894 */
1895 if (!iolog->avg_msec) {
1896 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1897 return;
1898 }
1899
1900 /*
1901 * Add the sample. If the time period has passed, then
1902 * add that entry to the log and clear.
1903 */
1904 add_stat_sample(&iolog->avg_window[ddir], val);
1905
1906 /*
1907 * If period hasn't passed, adding the above sample is all we
1908 * need to do.
1909 */
1910 this_window = elapsed - iolog->avg_last;
1911 if (this_window < iolog->avg_msec)
1912 return;
1913
1914 _add_stat_to_log(iolog, elapsed);
1915
1916 iolog->avg_last = elapsed;
1917}
1918
1919void finalize_logs(struct thread_data *td)
1920{
1921 unsigned long elapsed;
1922
1923 elapsed = mtime_since_now(&td->epoch);
1924
1925 if (td->clat_log)
1926 _add_stat_to_log(td->clat_log, elapsed);
1927 if (td->slat_log)
1928 _add_stat_to_log(td->slat_log, elapsed);
1929 if (td->lat_log)
1930 _add_stat_to_log(td->lat_log, elapsed);
1931 if (td->bw_log)
1932 _add_stat_to_log(td->bw_log, elapsed);
1933 if (td->iops_log)
1934 _add_stat_to_log(td->iops_log, elapsed);
1935}
1936
1937void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
1938{
1939 struct io_log *iolog;
1940
1941 if (!ddir_rw(ddir))
1942 return;
1943
1944 iolog = agg_io_log[ddir];
1945 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
1946}
1947
1948static void add_clat_percentile_sample(struct thread_stat *ts,
1949 unsigned long usec, enum fio_ddir ddir)
1950{
1951 unsigned int idx = plat_val_to_idx(usec);
1952 assert(idx < FIO_IO_U_PLAT_NR);
1953
1954 ts->io_u_plat[ddir][idx]++;
1955}
1956
1957void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
1958 unsigned long usec, unsigned int bs, uint64_t offset)
1959{
1960 struct thread_stat *ts = &td->ts;
1961
1962 if (!ddir_rw(ddir))
1963 return;
1964
1965 add_stat_sample(&ts->clat_stat[ddir], usec);
1966
1967 if (td->clat_log)
1968 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
1969
1970 if (ts->clat_percentiles)
1971 add_clat_percentile_sample(ts, usec, ddir);
1972}
1973
1974void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
1975 unsigned long usec, unsigned int bs, uint64_t offset)
1976{
1977 struct thread_stat *ts = &td->ts;
1978
1979 if (!ddir_rw(ddir))
1980 return;
1981
1982 add_stat_sample(&ts->slat_stat[ddir], usec);
1983
1984 if (td->slat_log)
1985 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
1986}
1987
1988void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
1989 unsigned long usec, unsigned int bs, uint64_t offset)
1990{
1991 struct thread_stat *ts = &td->ts;
1992
1993 if (!ddir_rw(ddir))
1994 return;
1995
1996 add_stat_sample(&ts->lat_stat[ddir], usec);
1997
1998 if (td->lat_log)
1999 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2000}
2001
2002void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2003 struct timeval *t)
2004{
2005 struct thread_stat *ts = &td->ts;
2006 unsigned long spent, rate;
2007
2008 if (!ddir_rw(ddir))
2009 return;
2010
2011 spent = mtime_since(&td->bw_sample_time, t);
2012 if (spent < td->o.bw_avg_time)
2013 return;
2014
2015 td_io_u_lock(td);
2016
2017 /*
2018 * Compute both read and write rates for the interval.
2019 */
2020 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2021 uint64_t delta;
2022
2023 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2024 if (!delta)
2025 continue; /* No entries for interval */
2026
2027 if (spent)
2028 rate = delta * 1000 / spent / 1024;
2029 else
2030 rate = 0;
2031
2032 add_stat_sample(&ts->bw_stat[ddir], rate);
2033
2034 if (td->bw_log)
2035 add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2036
2037 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2038 }
2039
2040 fio_gettime(&td->bw_sample_time, NULL);
2041 td_io_u_unlock(td);
2042}
2043
2044void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2045 struct timeval *t)
2046{
2047 struct thread_stat *ts = &td->ts;
2048 unsigned long spent, iops;
2049
2050 if (!ddir_rw(ddir))
2051 return;
2052
2053 spent = mtime_since(&td->iops_sample_time, t);
2054 if (spent < td->o.iops_avg_time)
2055 return;
2056
2057 td_io_u_lock(td);
2058
2059 /*
2060 * Compute both read and write rates for the interval.
2061 */
2062 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2063 uint64_t delta;
2064
2065 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2066 if (!delta)
2067 continue; /* No entries for interval */
2068
2069 if (spent)
2070 iops = (delta * 1000) / spent;
2071 else
2072 iops = 0;
2073
2074 add_stat_sample(&ts->iops_stat[ddir], iops);
2075
2076 if (td->iops_log)
2077 add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2078
2079 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2080 }
2081
2082 fio_gettime(&td->iops_sample_time, NULL);
2083 td_io_u_unlock(td);
2084}
2085
2086void stat_init(void)
2087{
2088 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2089}
2090
2091void stat_exit(void)
2092{
2093 /*
2094 * When we have the mutex, we know out-of-band access to it
2095 * have ended.
2096 */
2097 fio_mutex_down(stat_mutex);
2098 fio_mutex_remove(stat_mutex);
2099}
2100
2101/*
2102 * Called from signal handler. Wake up status thread.
2103 */
2104void show_running_run_stats(void)
2105{
2106 helper_do_stat = 1;
2107 pthread_cond_signal(&helper_cond);
2108}
2109
2110uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2111{
2112 /* Ignore io_u's which span multiple blocks--they will just get
2113 * inaccurate counts. */
2114 int idx = (io_u->offset - io_u->file->file_offset)
2115 / td->o.bs[DDIR_TRIM];
2116 uint32_t *info = &td->ts.block_infos[idx];
2117 assert(idx < td->ts.nr_block_infos);
2118 return info;
2119}
fio - Flexible IO Tester