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ARM: Use generic assembly nop and barrier code for armv8-a
[fio.git] / stat.c
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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
17struct fio_mutex *stat_mutex;
18
19void update_rusage_stat(struct thread_data *td)
20{
21 struct thread_stat *ts = &td->ts;
22
23 fio_getrusage(&td->ru_end);
24 ts->usr_time += mtime_since(&td->ru_start.ru_utime,
25 &td->ru_end.ru_utime);
26 ts->sys_time += mtime_since(&td->ru_start.ru_stime,
27 &td->ru_end.ru_stime);
28 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
29 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
30 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
31 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
32
33 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
34}
35
36/*
37 * Given a latency, return the index of the corresponding bucket in
38 * the structure tracking percentiles.
39 *
40 * (1) find the group (and error bits) that the value (latency)
41 * belongs to by looking at its MSB. (2) find the bucket number in the
42 * group by looking at the index bits.
43 *
44 */
45static unsigned int plat_val_to_idx(unsigned int val)
46{
47 unsigned int msb, error_bits, base, offset, idx;
48
49 /* Find MSB starting from bit 0 */
50 if (val == 0)
51 msb = 0;
52 else
53 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
54
55 /*
56 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
57 * all bits of the sample as index
58 */
59 if (msb <= FIO_IO_U_PLAT_BITS)
60 return val;
61
62 /* Compute the number of error bits to discard*/
63 error_bits = msb - FIO_IO_U_PLAT_BITS;
64
65 /* Compute the number of buckets before the group */
66 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
67
68 /*
69 * Discard the error bits and apply the mask to find the
70 * index for the buckets in the group
71 */
72 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
73
74 /* Make sure the index does not exceed (array size - 1) */
75 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
76 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
77
78 return idx;
79}
80
81/*
82 * Convert the given index of the bucket array to the value
83 * represented by the bucket
84 */
85static unsigned int plat_idx_to_val(unsigned int idx)
86{
87 unsigned int error_bits, k, base;
88
89 assert(idx < FIO_IO_U_PLAT_NR);
90
91 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
92 * all bits of the sample as index */
93 if (idx < (FIO_IO_U_PLAT_VAL << 1))
94 return idx;
95
96 /* Find the group and compute the minimum value of that group */
97 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
98 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
99
100 /* Find its bucket number of the group */
101 k = idx % FIO_IO_U_PLAT_VAL;
102
103 /* Return the mean of the range of the bucket */
104 return base + ((k + 0.5) * (1 << error_bits));
105}
106
107static int double_cmp(const void *a, const void *b)
108{
109 const fio_fp64_t fa = *(const fio_fp64_t *) a;
110 const fio_fp64_t fb = *(const fio_fp64_t *) b;
111 int cmp = 0;
112
113 if (fa.u.f > fb.u.f)
114 cmp = 1;
115 else if (fa.u.f < fb.u.f)
116 cmp = -1;
117
118 return cmp;
119}
120
121unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
122 fio_fp64_t *plist, unsigned int **output,
123 unsigned int *maxv, unsigned int *minv)
124{
125 unsigned long sum = 0;
126 unsigned int len, i, j = 0;
127 unsigned int oval_len = 0;
128 unsigned int *ovals = NULL;
129 int is_last;
130
131 *minv = -1U;
132 *maxv = 0;
133
134 len = 0;
135 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
136 len++;
137
138 if (!len)
139 return 0;
140
141 /*
142 * Sort the percentile list. Note that it may already be sorted if
143 * we are using the default values, but since it's a short list this
144 * isn't a worry. Also note that this does not work for NaN values.
145 */
146 if (len > 1)
147 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
148
149 /*
150 * Calculate bucket values, note down max and min values
151 */
152 is_last = 0;
153 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
154 sum += io_u_plat[i];
155 while (sum >= (plist[j].u.f / 100.0 * nr)) {
156 assert(plist[j].u.f <= 100.0);
157
158 if (j == oval_len) {
159 oval_len += 100;
160 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
161 }
162
163 ovals[j] = plat_idx_to_val(i);
164 if (ovals[j] < *minv)
165 *minv = ovals[j];
166 if (ovals[j] > *maxv)
167 *maxv = ovals[j];
168
169 is_last = (j == len - 1);
170 if (is_last)
171 break;
172
173 j++;
174 }
175 }
176
177 *output = ovals;
178 return len;
179}
180
181/*
182 * Find and display the p-th percentile of clat
183 */
184static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
185 fio_fp64_t *plist, unsigned int precision)
186{
187 unsigned int len, j = 0, minv, maxv;
188 unsigned int *ovals;
189 int is_last, per_line, scale_down;
190 char fmt[32];
191
192 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
193 if (!len)
194 goto out;
195
196 /*
197 * We default to usecs, but if the value range is such that we
198 * should scale down to msecs, do that.
199 */
200 if (minv > 2000 && maxv > 99999) {
201 scale_down = 1;
202 log_info(" clat percentiles (msec):\n |");
203 } else {
204 scale_down = 0;
205 log_info(" clat percentiles (usec):\n |");
206 }
207
208 snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
209 per_line = (80 - 7) / (precision + 14);
210
211 for (j = 0; j < len; j++) {
212 char fbuf[16], *ptr = fbuf;
213
214 /* for formatting */
215 if (j != 0 && (j % per_line) == 0)
216 log_info(" |");
217
218 /* end of the list */
219 is_last = (j == len - 1);
220
221 if (plist[j].u.f < 10.0)
222 ptr += sprintf(fbuf, " ");
223
224 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
225
226 if (scale_down)
227 ovals[j] = (ovals[j] + 999) / 1000;
228
229 log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
230
231 if (is_last)
232 break;
233
234 if ((j % per_line) == per_line - 1) /* for formatting */
235 log_info("\n");
236 }
237
238out:
239 if (ovals)
240 free(ovals);
241}
242
243int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
244 double *mean, double *dev)
245{
246 double n = (double) is->samples;
247
248 if (n == 0)
249 return 0;
250
251 *min = is->min_val;
252 *max = is->max_val;
253 *mean = is->mean.u.f;
254
255 if (n > 1.0)
256 *dev = sqrt(is->S.u.f / (n - 1.0));
257 else
258 *dev = 0;
259
260 return 1;
261}
262
263void show_group_stats(struct group_run_stats *rs)
264{
265 char *p1, *p2, *p3, *p4;
266 const char *str[] = { " READ", " WRITE" , " TRIM"};
267 int i;
268
269 log_info("\nRun status group %d (all jobs):\n", rs->groupid);
270
271 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
272 const int i2p = is_power_of_2(rs->kb_base);
273
274 if (!rs->max_run[i])
275 continue;
276
277 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
278 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
279 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
280 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
281
282 log_info("%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
283 " mint=%llumsec, maxt=%llumsec\n",
284 rs->unified_rw_rep ? " MIXED" : str[i],
285 p1, p2, p3, p4,
286 (unsigned long long) rs->min_run[i],
287 (unsigned long long) rs->max_run[i]);
288
289 free(p1);
290 free(p2);
291 free(p3);
292 free(p4);
293 }
294}
295
296void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
297{
298 int i;
299
300 /*
301 * Do depth distribution calculations
302 */
303 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
304 if (total) {
305 io_u_dist[i] = (double) map[i] / (double) total;
306 io_u_dist[i] *= 100.0;
307 if (io_u_dist[i] < 0.1 && map[i])
308 io_u_dist[i] = 0.1;
309 } else
310 io_u_dist[i] = 0.0;
311 }
312}
313
314static void stat_calc_lat(struct thread_stat *ts, double *dst,
315 unsigned int *src, int nr)
316{
317 unsigned long total = ddir_rw_sum(ts->total_io_u);
318 int i;
319
320 /*
321 * Do latency distribution calculations
322 */
323 for (i = 0; i < nr; i++) {
324 if (total) {
325 dst[i] = (double) src[i] / (double) total;
326 dst[i] *= 100.0;
327 if (dst[i] < 0.01 && src[i])
328 dst[i] = 0.01;
329 } else
330 dst[i] = 0.0;
331 }
332}
333
334void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
335{
336 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
337}
338
339void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
340{
341 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
342}
343
344static void display_lat(const char *name, unsigned long min, unsigned long max,
345 double mean, double dev)
346{
347 const char *base = "(usec)";
348 char *minp, *maxp;
349
350 if (!usec_to_msec(&min, &max, &mean, &dev))
351 base = "(msec)";
352
353 minp = num2str(min, 6, 1, 0, 0);
354 maxp = num2str(max, 6, 1, 0, 0);
355
356 log_info(" %s %s: min=%s, max=%s, avg=%5.02f,"
357 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
358
359 free(minp);
360 free(maxp);
361}
362
363static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
364 int ddir)
365{
366 const char *str[] = { "read ", "write", "trim" };
367 unsigned long min, max, runt;
368 unsigned long long bw, iops;
369 double mean, dev;
370 char *io_p, *bw_p, *iops_p;
371 int i2p;
372
373 assert(ddir_rw(ddir));
374
375 if (!ts->runtime[ddir])
376 return;
377
378 i2p = is_power_of_2(rs->kb_base);
379 runt = ts->runtime[ddir];
380
381 bw = (1000 * ts->io_bytes[ddir]) / runt;
382 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
383 bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
384
385 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
386 iops_p = num2str(iops, 6, 1, 0, 0);
387
388 log_info(" %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
389 rs->unified_rw_rep ? "mixed" : str[ddir],
390 io_p, bw_p, iops_p,
391 (unsigned long long) ts->runtime[ddir]);
392
393 free(io_p);
394 free(bw_p);
395 free(iops_p);
396
397 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
398 display_lat("slat", min, max, mean, dev);
399 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
400 display_lat("clat", min, max, mean, dev);
401 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
402 display_lat(" lat", min, max, mean, dev);
403
404 if (ts->clat_percentiles) {
405 show_clat_percentiles(ts->io_u_plat[ddir],
406 ts->clat_stat[ddir].samples,
407 ts->percentile_list,
408 ts->percentile_precision);
409 }
410 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
411 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
412 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
413
414 if (rs->unit_base == 1) {
415 min *= 8.0;
416 max *= 8.0;
417 mean *= 8.0;
418 dev *= 8.0;
419 }
420
421 if (rs->agg[ddir]) {
422 p_of_agg = mean * 100 / (double) rs->agg[ddir];
423 if (p_of_agg > 100.0)
424 p_of_agg = 100.0;
425 }
426
427 if (mean > fkb_base * fkb_base) {
428 min /= fkb_base;
429 max /= fkb_base;
430 mean /= fkb_base;
431 dev /= fkb_base;
432 bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
433 }
434
435 log_info(" bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
436 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
437 p_of_agg, mean, dev);
438 }
439}
440
441static int show_lat(double *io_u_lat, int nr, const char **ranges,
442 const char *msg)
443{
444 int new_line = 1, i, line = 0, shown = 0;
445
446 for (i = 0; i < nr; i++) {
447 if (io_u_lat[i] <= 0.0)
448 continue;
449 shown = 1;
450 if (new_line) {
451 if (line)
452 log_info("\n");
453 log_info(" lat (%s) : ", msg);
454 new_line = 0;
455 line = 0;
456 }
457 if (line)
458 log_info(", ");
459 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
460 line++;
461 if (line == 5)
462 new_line = 1;
463 }
464
465 if (shown)
466 log_info("\n");
467
468 return shown;
469}
470
471static void show_lat_u(double *io_u_lat_u)
472{
473 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
474 "250=", "500=", "750=", "1000=", };
475
476 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
477}
478
479static void show_lat_m(double *io_u_lat_m)
480{
481 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
482 "250=", "500=", "750=", "1000=", "2000=",
483 ">=2000=", };
484
485 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
486}
487
488static void show_latencies(struct thread_stat *ts)
489{
490 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
491 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
492
493 stat_calc_lat_u(ts, io_u_lat_u);
494 stat_calc_lat_m(ts, io_u_lat_m);
495
496 show_lat_u(io_u_lat_u);
497 show_lat_m(io_u_lat_m);
498}
499
500static int block_state_category(int block_state)
501{
502 switch (block_state) {
503 case BLOCK_STATE_UNINIT:
504 return 0;
505 case BLOCK_STATE_TRIMMED:
506 case BLOCK_STATE_WRITTEN:
507 return 1;
508 case BLOCK_STATE_WRITE_FAILURE:
509 case BLOCK_STATE_TRIM_FAILURE:
510 return 2;
511 default:
512 assert(0);
513 }
514}
515
516static int compare_block_infos(const void *bs1, const void *bs2)
517{
518 uint32_t block1 = *(uint32_t *)bs1;
519 uint32_t block2 = *(uint32_t *)bs2;
520 int state1 = BLOCK_INFO_STATE(block1);
521 int state2 = BLOCK_INFO_STATE(block2);
522 int bscat1 = block_state_category(state1);
523 int bscat2 = block_state_category(state2);
524 int cycles1 = BLOCK_INFO_TRIMS(block1);
525 int cycles2 = BLOCK_INFO_TRIMS(block2);
526
527 if (bscat1 < bscat2)
528 return -1;
529 if (bscat1 > bscat2)
530 return 1;
531
532 if (cycles1 < cycles2)
533 return -1;
534 if (cycles1 > cycles2)
535 return 1;
536
537 if (state1 < state2)
538 return -1;
539 if (state1 > state2)
540 return 1;
541
542 assert(block1 == block2);
543 return 0;
544}
545
546static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
547 fio_fp64_t *plist, unsigned int **percentiles,
548 unsigned int *types)
549{
550 int len = 0;
551 int i, nr_uninit;
552
553 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
554
555 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
556 len++;
557
558 if (!len)
559 return 0;
560
561 /*
562 * Sort the percentile list. Note that it may already be sorted if
563 * we are using the default values, but since it's a short list this
564 * isn't a worry. Also note that this does not work for NaN values.
565 */
566 if (len > 1)
567 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
568
569 nr_uninit = 0;
570 /* Start only after the uninit entries end */
571 for (nr_uninit = 0;
572 nr_uninit < nr_block_infos
573 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
574 nr_uninit ++)
575 ;
576
577 if (nr_uninit == nr_block_infos)
578 return 0;
579
580 *percentiles = calloc(len, sizeof(**percentiles));
581
582 for (i = 0; i < len; i++) {
583 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
584 + nr_uninit;
585 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
586 }
587
588 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
589 for (i = 0; i < nr_block_infos; i++)
590 types[BLOCK_INFO_STATE(block_infos[i])]++;
591
592 return len;
593}
594
595static const char *block_state_names[] = {
596 [BLOCK_STATE_UNINIT] = "unwritten",
597 [BLOCK_STATE_TRIMMED] = "trimmed",
598 [BLOCK_STATE_WRITTEN] = "written",
599 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
600 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
601};
602
603static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
604 fio_fp64_t *plist)
605{
606 int len, pos, i;
607 unsigned int *percentiles = NULL;
608 unsigned int block_state_counts[BLOCK_STATE_COUNT];
609
610 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
611 &percentiles, block_state_counts);
612
613 log_info(" block lifetime percentiles :\n |");
614 pos = 0;
615 for (i = 0; i < len; i++) {
616 uint32_t block_info = percentiles[i];
617#define LINE_LENGTH 75
618 char str[LINE_LENGTH];
619 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
620 plist[i].u.f, block_info,
621 i == len - 1 ? '\n' : ',');
622 assert(strln < LINE_LENGTH);
623 if (pos + strln > LINE_LENGTH) {
624 pos = 0;
625 log_info("\n |");
626 }
627 log_info("%s", str);
628 pos += strln;
629#undef LINE_LENGTH
630 }
631 if (percentiles)
632 free(percentiles);
633
634 log_info(" states :");
635 for (i = 0; i < BLOCK_STATE_COUNT; i++)
636 log_info(" %s=%u%c",
637 block_state_names[i], block_state_counts[i],
638 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
639}
640
641static void show_thread_status_normal(struct thread_stat *ts,
642 struct group_run_stats *rs)
643{
644 double usr_cpu, sys_cpu;
645 unsigned long runtime;
646 double io_u_dist[FIO_IO_U_MAP_NR];
647 time_t time_p;
648 char time_buf[32];
649
650 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
651 return;
652
653 time(&time_p);
654 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
655
656 if (!ts->error) {
657 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
658 ts->name, ts->groupid, ts->members,
659 ts->error, (int) ts->pid, time_buf);
660 } else {
661 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
662 ts->name, ts->groupid, ts->members,
663 ts->error, ts->verror, (int) ts->pid,
664 time_buf);
665 }
666
667 if (strlen(ts->description))
668 log_info(" Description : [%s]\n", ts->description);
669
670 if (ts->io_bytes[DDIR_READ])
671 show_ddir_status(rs, ts, DDIR_READ);
672 if (ts->io_bytes[DDIR_WRITE])
673 show_ddir_status(rs, ts, DDIR_WRITE);
674 if (ts->io_bytes[DDIR_TRIM])
675 show_ddir_status(rs, ts, DDIR_TRIM);
676
677 show_latencies(ts);
678
679 runtime = ts->total_run_time;
680 if (runtime) {
681 double runt = (double) runtime;
682
683 usr_cpu = (double) ts->usr_time * 100 / runt;
684 sys_cpu = (double) ts->sys_time * 100 / runt;
685 } else {
686 usr_cpu = 0;
687 sys_cpu = 0;
688 }
689
690 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
691 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
692 (unsigned long long) ts->ctx,
693 (unsigned long long) ts->majf,
694 (unsigned long long) ts->minf);
695
696 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
697 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
698 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
699 io_u_dist[1], io_u_dist[2],
700 io_u_dist[3], io_u_dist[4],
701 io_u_dist[5], io_u_dist[6]);
702
703 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
704 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
705 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
706 io_u_dist[1], io_u_dist[2],
707 io_u_dist[3], io_u_dist[4],
708 io_u_dist[5], io_u_dist[6]);
709 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
710 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
711 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
712 io_u_dist[1], io_u_dist[2],
713 io_u_dist[3], io_u_dist[4],
714 io_u_dist[5], io_u_dist[6]);
715 log_info(" issued : total=r=%llu/w=%llu/d=%llu,"
716 " short=r=%llu/w=%llu/d=%llu,"
717 " drop=r=%llu/w=%llu/d=%llu\n",
718 (unsigned long long) ts->total_io_u[0],
719 (unsigned long long) ts->total_io_u[1],
720 (unsigned long long) ts->total_io_u[2],
721 (unsigned long long) ts->short_io_u[0],
722 (unsigned long long) ts->short_io_u[1],
723 (unsigned long long) ts->short_io_u[2],
724 (unsigned long long) ts->drop_io_u[0],
725 (unsigned long long) ts->drop_io_u[1],
726 (unsigned long long) ts->drop_io_u[2]);
727 if (ts->continue_on_error) {
728 log_info(" errors : total=%llu, first_error=%d/<%s>\n",
729 (unsigned long long)ts->total_err_count,
730 ts->first_error,
731 strerror(ts->first_error));
732 }
733 if (ts->latency_depth) {
734 log_info(" latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
735 (unsigned long long)ts->latency_target,
736 (unsigned long long)ts->latency_window,
737 ts->latency_percentile.u.f,
738 ts->latency_depth);
739 }
740
741 if (ts->nr_block_infos)
742 show_block_infos(ts->nr_block_infos, ts->block_infos,
743 ts->percentile_list);
744}
745
746static void show_ddir_status_terse(struct thread_stat *ts,
747 struct group_run_stats *rs, int ddir)
748{
749 unsigned long min, max;
750 unsigned long long bw, iops;
751 unsigned int *ovals = NULL;
752 double mean, dev;
753 unsigned int len, minv, maxv;
754 int i;
755
756 assert(ddir_rw(ddir));
757
758 iops = bw = 0;
759 if (ts->runtime[ddir]) {
760 uint64_t runt = ts->runtime[ddir];
761
762 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
763 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
764 }
765
766 log_info(";%llu;%llu;%llu;%llu",
767 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
768 (unsigned long long) ts->runtime[ddir]);
769
770 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
771 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
772 else
773 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
774
775 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
776 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
777 else
778 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
779
780 if (ts->clat_percentiles) {
781 len = calc_clat_percentiles(ts->io_u_plat[ddir],
782 ts->clat_stat[ddir].samples,
783 ts->percentile_list, &ovals, &maxv,
784 &minv);
785 } else
786 len = 0;
787
788 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
789 if (i >= len) {
790 log_info(";0%%=0");
791 continue;
792 }
793 log_info(";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
794 }
795
796 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
797 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
798 else
799 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
800
801 if (ovals)
802 free(ovals);
803
804 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
805 double p_of_agg = 100.0;
806
807 if (rs->agg[ddir]) {
808 p_of_agg = mean * 100 / (double) rs->agg[ddir];
809 if (p_of_agg > 100.0)
810 p_of_agg = 100.0;
811 }
812
813 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
814 } else
815 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
816}
817
818static void add_ddir_status_json(struct thread_stat *ts,
819 struct group_run_stats *rs, int ddir, struct json_object *parent)
820{
821 unsigned long min, max;
822 unsigned long long bw;
823 unsigned int *ovals = NULL;
824 double mean, dev, iops;
825 unsigned int len, minv, maxv;
826 int i;
827 const char *ddirname[] = {"read", "write", "trim"};
828 struct json_object *dir_object, *tmp_object, *percentile_object;
829 char buf[120];
830 double p_of_agg = 100.0;
831
832 assert(ddir_rw(ddir));
833
834 if (ts->unified_rw_rep && ddir != DDIR_READ)
835 return;
836
837 dir_object = json_create_object();
838 json_object_add_value_object(parent,
839 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
840
841 bw = 0;
842 iops = 0.0;
843 if (ts->runtime[ddir]) {
844 uint64_t runt = ts->runtime[ddir];
845
846 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
847 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
848 }
849
850 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
851 json_object_add_value_int(dir_object, "bw", bw);
852 json_object_add_value_float(dir_object, "iops", iops);
853 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
854 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
855 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
856 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
857
858 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
859 min = max = 0;
860 mean = dev = 0.0;
861 }
862 tmp_object = json_create_object();
863 json_object_add_value_object(dir_object, "slat", tmp_object);
864 json_object_add_value_int(tmp_object, "min", min);
865 json_object_add_value_int(tmp_object, "max", max);
866 json_object_add_value_float(tmp_object, "mean", mean);
867 json_object_add_value_float(tmp_object, "stddev", dev);
868
869 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
870 min = max = 0;
871 mean = dev = 0.0;
872 }
873 tmp_object = json_create_object();
874 json_object_add_value_object(dir_object, "clat", tmp_object);
875 json_object_add_value_int(tmp_object, "min", min);
876 json_object_add_value_int(tmp_object, "max", max);
877 json_object_add_value_float(tmp_object, "mean", mean);
878 json_object_add_value_float(tmp_object, "stddev", dev);
879
880 if (ts->clat_percentiles) {
881 len = calc_clat_percentiles(ts->io_u_plat[ddir],
882 ts->clat_stat[ddir].samples,
883 ts->percentile_list, &ovals, &maxv,
884 &minv);
885 } else
886 len = 0;
887
888 percentile_object = json_create_object();
889 json_object_add_value_object(tmp_object, "percentile", percentile_object);
890 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
891 if (i >= len) {
892 json_object_add_value_int(percentile_object, "0.00", 0);
893 continue;
894 }
895 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
896 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
897 }
898
899 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
900 min = max = 0;
901 mean = dev = 0.0;
902 }
903 tmp_object = json_create_object();
904 json_object_add_value_object(dir_object, "lat", tmp_object);
905 json_object_add_value_int(tmp_object, "min", min);
906 json_object_add_value_int(tmp_object, "max", max);
907 json_object_add_value_float(tmp_object, "mean", mean);
908 json_object_add_value_float(tmp_object, "stddev", dev);
909 if (ovals)
910 free(ovals);
911
912 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
913 if (rs->agg[ddir]) {
914 p_of_agg = mean * 100 / (double) rs->agg[ddir];
915 if (p_of_agg > 100.0)
916 p_of_agg = 100.0;
917 }
918 } else {
919 min = max = 0;
920 p_of_agg = mean = dev = 0.0;
921 }
922 json_object_add_value_int(dir_object, "bw_min", min);
923 json_object_add_value_int(dir_object, "bw_max", max);
924 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
925 json_object_add_value_float(dir_object, "bw_mean", mean);
926 json_object_add_value_float(dir_object, "bw_dev", dev);
927}
928
929static void show_thread_status_terse_v2(struct thread_stat *ts,
930 struct group_run_stats *rs)
931{
932 double io_u_dist[FIO_IO_U_MAP_NR];
933 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
934 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
935 double usr_cpu, sys_cpu;
936 int i;
937
938 /* General Info */
939 log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error);
940 /* Log Read Status */
941 show_ddir_status_terse(ts, rs, DDIR_READ);
942 /* Log Write Status */
943 show_ddir_status_terse(ts, rs, DDIR_WRITE);
944 /* Log Trim Status */
945 show_ddir_status_terse(ts, rs, DDIR_TRIM);
946
947 /* CPU Usage */
948 if (ts->total_run_time) {
949 double runt = (double) ts->total_run_time;
950
951 usr_cpu = (double) ts->usr_time * 100 / runt;
952 sys_cpu = (double) ts->sys_time * 100 / runt;
953 } else {
954 usr_cpu = 0;
955 sys_cpu = 0;
956 }
957
958 log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
959 (unsigned long long) ts->ctx,
960 (unsigned long long) ts->majf,
961 (unsigned long long) ts->minf);
962
963 /* Calc % distribution of IO depths, usecond, msecond latency */
964 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
965 stat_calc_lat_u(ts, io_u_lat_u);
966 stat_calc_lat_m(ts, io_u_lat_m);
967
968 /* Only show fixed 7 I/O depth levels*/
969 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
970 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
971 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
972
973 /* Microsecond latency */
974 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
975 log_info(";%3.2f%%", io_u_lat_u[i]);
976 /* Millisecond latency */
977 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
978 log_info(";%3.2f%%", io_u_lat_m[i]);
979 /* Additional output if continue_on_error set - default off*/
980 if (ts->continue_on_error)
981 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
982 log_info("\n");
983
984 /* Additional output if description is set */
985 if (strlen(ts->description))
986 log_info(";%s", ts->description);
987
988 log_info("\n");
989}
990
991static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
992 struct group_run_stats *rs, int ver)
993{
994 double io_u_dist[FIO_IO_U_MAP_NR];
995 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
996 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
997 double usr_cpu, sys_cpu;
998 int i;
999
1000 /* General Info */
1001 log_info("%d;%s;%s;%d;%d", ver, fio_version_string,
1002 ts->name, ts->groupid, ts->error);
1003 /* Log Read Status */
1004 show_ddir_status_terse(ts, rs, DDIR_READ);
1005 /* Log Write Status */
1006 show_ddir_status_terse(ts, rs, DDIR_WRITE);
1007 /* Log Trim Status */
1008 if (ver == 4)
1009 show_ddir_status_terse(ts, rs, DDIR_TRIM);
1010
1011 /* CPU Usage */
1012 if (ts->total_run_time) {
1013 double runt = (double) ts->total_run_time;
1014
1015 usr_cpu = (double) ts->usr_time * 100 / runt;
1016 sys_cpu = (double) ts->sys_time * 100 / runt;
1017 } else {
1018 usr_cpu = 0;
1019 sys_cpu = 0;
1020 }
1021
1022 log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1023 (unsigned long long) ts->ctx,
1024 (unsigned long long) ts->majf,
1025 (unsigned long long) ts->minf);
1026
1027 /* Calc % distribution of IO depths, usecond, msecond latency */
1028 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1029 stat_calc_lat_u(ts, io_u_lat_u);
1030 stat_calc_lat_m(ts, io_u_lat_m);
1031
1032 /* Only show fixed 7 I/O depth levels*/
1033 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1034 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1035 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1036
1037 /* Microsecond latency */
1038 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1039 log_info(";%3.2f%%", io_u_lat_u[i]);
1040 /* Millisecond latency */
1041 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1042 log_info(";%3.2f%%", io_u_lat_m[i]);
1043
1044 /* disk util stats, if any */
1045 show_disk_util(1, NULL);
1046
1047 /* Additional output if continue_on_error set - default off*/
1048 if (ts->continue_on_error)
1049 log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1050
1051 /* Additional output if description is set */
1052 if (strlen(ts->description))
1053 log_info(";%s", ts->description);
1054
1055 log_info("\n");
1056}
1057
1058static struct json_object *show_thread_status_json(struct thread_stat *ts,
1059 struct group_run_stats *rs)
1060{
1061 struct json_object *root, *tmp;
1062 double io_u_dist[FIO_IO_U_MAP_NR];
1063 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1064 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1065 double usr_cpu, sys_cpu;
1066 int i;
1067
1068 root = json_create_object();
1069 json_object_add_value_string(root, "jobname", ts->name);
1070 json_object_add_value_int(root, "groupid", ts->groupid);
1071 json_object_add_value_int(root, "error", ts->error);
1072
1073 add_ddir_status_json(ts, rs, DDIR_READ, root);
1074 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1075 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1076
1077 /* CPU Usage */
1078 if (ts->total_run_time) {
1079 double runt = (double) ts->total_run_time;
1080
1081 usr_cpu = (double) ts->usr_time * 100 / runt;
1082 sys_cpu = (double) ts->sys_time * 100 / runt;
1083 } else {
1084 usr_cpu = 0;
1085 sys_cpu = 0;
1086 }
1087 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1088 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1089 json_object_add_value_int(root, "ctx", ts->ctx);
1090 json_object_add_value_int(root, "majf", ts->majf);
1091 json_object_add_value_int(root, "minf", ts->minf);
1092
1093
1094 /* Calc % distribution of IO depths, usecond, msecond latency */
1095 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1096 stat_calc_lat_u(ts, io_u_lat_u);
1097 stat_calc_lat_m(ts, io_u_lat_m);
1098
1099 tmp = json_create_object();
1100 json_object_add_value_object(root, "iodepth_level", tmp);
1101 /* Only show fixed 7 I/O depth levels*/
1102 for (i = 0; i < 7; i++) {
1103 char name[20];
1104 if (i < 6)
1105 snprintf(name, 20, "%d", 1 << i);
1106 else
1107 snprintf(name, 20, ">=%d", 1 << i);
1108 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1109 }
1110
1111 tmp = json_create_object();
1112 json_object_add_value_object(root, "latency_us", tmp);
1113 /* Microsecond latency */
1114 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1115 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1116 "250", "500", "750", "1000", };
1117 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1118 }
1119 /* Millisecond latency */
1120 tmp = json_create_object();
1121 json_object_add_value_object(root, "latency_ms", tmp);
1122 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1123 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1124 "250", "500", "750", "1000", "2000",
1125 ">=2000", };
1126 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1127 }
1128
1129 /* Additional output if continue_on_error set - default off*/
1130 if (ts->continue_on_error) {
1131 json_object_add_value_int(root, "total_err", ts->total_err_count);
1132 json_object_add_value_int(root, "first_error", ts->first_error);
1133 }
1134
1135 if (ts->latency_depth) {
1136 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1137 json_object_add_value_int(root, "latency_target", ts->latency_target);
1138 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1139 json_object_add_value_int(root, "latency_window", ts->latency_window);
1140 }
1141
1142 /* Additional output if description is set */
1143 if (strlen(ts->description))
1144 json_object_add_value_string(root, "desc", ts->description);
1145
1146 if (ts->nr_block_infos) {
1147 /* Block error histogram and types */
1148 int len;
1149 unsigned int *percentiles = NULL;
1150 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1151
1152 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1153 ts->percentile_list,
1154 &percentiles, block_state_counts);
1155
1156 if (len) {
1157 struct json_object *block, *percentile_object, *states;
1158 int state, i;
1159 block = json_create_object();
1160 json_object_add_value_object(root, "block", block);
1161
1162 percentile_object = json_create_object();
1163 json_object_add_value_object(block, "percentiles",
1164 percentile_object);
1165 for (i = 0; i < len; i++) {
1166 char buf[20];
1167 snprintf(buf, sizeof(buf), "%f",
1168 ts->percentile_list[i].u.f);
1169 json_object_add_value_int(percentile_object,
1170 (const char *)buf,
1171 percentiles[i]);
1172 }
1173
1174 states = json_create_object();
1175 json_object_add_value_object(block, "states", states);
1176 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1177 json_object_add_value_int(states,
1178 block_state_names[state],
1179 block_state_counts[state]);
1180 }
1181 free(percentiles);
1182 }
1183 }
1184
1185 return root;
1186}
1187
1188static void show_thread_status_terse(struct thread_stat *ts,
1189 struct group_run_stats *rs)
1190{
1191 if (terse_version == 2)
1192 show_thread_status_terse_v2(ts, rs);
1193 else if (terse_version == 3 || terse_version == 4)
1194 show_thread_status_terse_v3_v4(ts, rs, terse_version);
1195 else
1196 log_err("fio: bad terse version!? %d\n", terse_version);
1197}
1198
1199struct json_object *show_thread_status(struct thread_stat *ts,
1200 struct group_run_stats *rs)
1201{
1202 if (output_format == FIO_OUTPUT_TERSE)
1203 show_thread_status_terse(ts, rs);
1204 else if (output_format == FIO_OUTPUT_JSON)
1205 return show_thread_status_json(ts, rs);
1206 else
1207 show_thread_status_normal(ts, rs);
1208 return NULL;
1209}
1210
1211static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
1212{
1213 double mean, S;
1214
1215 if (src->samples == 0)
1216 return;
1217
1218 dst->min_val = min(dst->min_val, src->min_val);
1219 dst->max_val = max(dst->max_val, src->max_val);
1220
1221 /*
1222 * Compute new mean and S after the merge
1223 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1224 * #Parallel_algorithm>
1225 */
1226 if (nr == 1) {
1227 mean = src->mean.u.f;
1228 S = src->S.u.f;
1229 } else {
1230 double delta = src->mean.u.f - dst->mean.u.f;
1231
1232 mean = ((src->mean.u.f * src->samples) +
1233 (dst->mean.u.f * dst->samples)) /
1234 (dst->samples + src->samples);
1235
1236 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1237 (dst->samples * src->samples) /
1238 (dst->samples + src->samples);
1239 }
1240
1241 dst->samples += src->samples;
1242 dst->mean.u.f = mean;
1243 dst->S.u.f = S;
1244}
1245
1246void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1247{
1248 int i;
1249
1250 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1251 if (dst->max_run[i] < src->max_run[i])
1252 dst->max_run[i] = src->max_run[i];
1253 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1254 dst->min_run[i] = src->min_run[i];
1255 if (dst->max_bw[i] < src->max_bw[i])
1256 dst->max_bw[i] = src->max_bw[i];
1257 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1258 dst->min_bw[i] = src->min_bw[i];
1259
1260 dst->io_kb[i] += src->io_kb[i];
1261 dst->agg[i] += src->agg[i];
1262 }
1263
1264 if (!dst->kb_base)
1265 dst->kb_base = src->kb_base;
1266 if (!dst->unit_base)
1267 dst->unit_base = src->unit_base;
1268}
1269
1270void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
1271{
1272 int l, k;
1273
1274 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1275 if (!dst->unified_rw_rep) {
1276 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
1277 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
1278 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
1279 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
1280
1281 dst->io_bytes[l] += src->io_bytes[l];
1282
1283 if (dst->runtime[l] < src->runtime[l])
1284 dst->runtime[l] = src->runtime[l];
1285 } else {
1286 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr);
1287 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr);
1288 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr);
1289 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr);
1290
1291 dst->io_bytes[0] += src->io_bytes[l];
1292
1293 if (dst->runtime[0] < src->runtime[l])
1294 dst->runtime[0] = src->runtime[l];
1295 }
1296 }
1297
1298 dst->usr_time += src->usr_time;
1299 dst->sys_time += src->sys_time;
1300 dst->ctx += src->ctx;
1301 dst->majf += src->majf;
1302 dst->minf += src->minf;
1303
1304 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1305 dst->io_u_map[k] += src->io_u_map[k];
1306 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1307 dst->io_u_submit[k] += src->io_u_submit[k];
1308 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1309 dst->io_u_complete[k] += src->io_u_complete[k];
1310 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1311 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1312 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1313 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1314
1315 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1316 if (!dst->unified_rw_rep) {
1317 dst->total_io_u[k] += src->total_io_u[k];
1318 dst->short_io_u[k] += src->short_io_u[k];
1319 dst->drop_io_u[k] += src->drop_io_u[k];
1320 } else {
1321 dst->total_io_u[0] += src->total_io_u[k];
1322 dst->short_io_u[0] += src->short_io_u[k];
1323 dst->drop_io_u[0] += src->drop_io_u[k];
1324 }
1325 }
1326
1327 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1328 int m;
1329
1330 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1331 if (!dst->unified_rw_rep)
1332 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1333 else
1334 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1335 }
1336 }
1337
1338 dst->total_run_time += src->total_run_time;
1339 dst->total_submit += src->total_submit;
1340 dst->total_complete += src->total_complete;
1341}
1342
1343void init_group_run_stat(struct group_run_stats *gs)
1344{
1345 int i;
1346 memset(gs, 0, sizeof(*gs));
1347
1348 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1349 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1350}
1351
1352void init_thread_stat(struct thread_stat *ts)
1353{
1354 int j;
1355
1356 memset(ts, 0, sizeof(*ts));
1357
1358 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1359 ts->lat_stat[j].min_val = -1UL;
1360 ts->clat_stat[j].min_val = -1UL;
1361 ts->slat_stat[j].min_val = -1UL;
1362 ts->bw_stat[j].min_val = -1UL;
1363 }
1364 ts->groupid = -1;
1365}
1366
1367void __show_run_stats(void)
1368{
1369 struct group_run_stats *runstats, *rs;
1370 struct thread_data *td;
1371 struct thread_stat *threadstats, *ts;
1372 int i, j, k, nr_ts, last_ts, idx;
1373 int kb_base_warned = 0;
1374 int unit_base_warned = 0;
1375 struct json_object *root = NULL;
1376 struct json_array *array = NULL;
1377 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1378
1379 for (i = 0; i < groupid + 1; i++)
1380 init_group_run_stat(&runstats[i]);
1381
1382 /*
1383 * find out how many threads stats we need. if group reporting isn't
1384 * enabled, it's one-per-td.
1385 */
1386 nr_ts = 0;
1387 last_ts = -1;
1388 for_each_td(td, i) {
1389 if (!td->o.group_reporting) {
1390 nr_ts++;
1391 continue;
1392 }
1393 if (last_ts == td->groupid)
1394 continue;
1395
1396 last_ts = td->groupid;
1397 nr_ts++;
1398 }
1399
1400 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1401
1402 for (i = 0; i < nr_ts; i++)
1403 init_thread_stat(&threadstats[i]);
1404
1405 j = 0;
1406 last_ts = -1;
1407 idx = 0;
1408 for_each_td(td, i) {
1409 if (idx && (!td->o.group_reporting ||
1410 (td->o.group_reporting && last_ts != td->groupid))) {
1411 idx = 0;
1412 j++;
1413 }
1414
1415 last_ts = td->groupid;
1416
1417 ts = &threadstats[j];
1418
1419 ts->clat_percentiles = td->o.clat_percentiles;
1420 ts->percentile_precision = td->o.percentile_precision;
1421 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1422
1423 idx++;
1424 ts->members++;
1425
1426 if (ts->groupid == -1) {
1427 /*
1428 * These are per-group shared already
1429 */
1430 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1431 if (td->o.description)
1432 strncpy(ts->description, td->o.description,
1433 FIO_JOBDESC_SIZE - 1);
1434 else
1435 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1436
1437 /*
1438 * If multiple entries in this group, this is
1439 * the first member.
1440 */
1441 ts->thread_number = td->thread_number;
1442 ts->groupid = td->groupid;
1443
1444 /*
1445 * first pid in group, not very useful...
1446 */
1447 ts->pid = td->pid;
1448
1449 ts->kb_base = td->o.kb_base;
1450 ts->unit_base = td->o.unit_base;
1451 ts->unified_rw_rep = td->o.unified_rw_rep;
1452 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1453 log_info("fio: kb_base differs for jobs in group, using"
1454 " %u as the base\n", ts->kb_base);
1455 kb_base_warned = 1;
1456 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1457 log_info("fio: unit_base differs for jobs in group, using"
1458 " %u as the base\n", ts->unit_base);
1459 unit_base_warned = 1;
1460 }
1461
1462 ts->continue_on_error = td->o.continue_on_error;
1463 ts->total_err_count += td->total_err_count;
1464 ts->first_error = td->first_error;
1465 if (!ts->error) {
1466 if (!td->error && td->o.continue_on_error &&
1467 td->first_error) {
1468 ts->error = td->first_error;
1469 ts->verror[sizeof(ts->verror) - 1] = '\0';
1470 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1471 } else if (td->error) {
1472 ts->error = td->error;
1473 ts->verror[sizeof(ts->verror) - 1] = '\0';
1474 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1475 }
1476 }
1477
1478 ts->latency_depth = td->latency_qd;
1479 ts->latency_target = td->o.latency_target;
1480 ts->latency_percentile = td->o.latency_percentile;
1481 ts->latency_window = td->o.latency_window;
1482
1483 ts->nr_block_infos = td->ts.nr_block_infos;
1484 for (k = 0; k < ts->nr_block_infos; k++)
1485 ts->block_infos[k] = td->ts.block_infos[k];
1486
1487 sum_thread_stats(ts, &td->ts, idx);
1488 }
1489
1490 for (i = 0; i < nr_ts; i++) {
1491 unsigned long long bw;
1492
1493 ts = &threadstats[i];
1494 rs = &runstats[ts->groupid];
1495 rs->kb_base = ts->kb_base;
1496 rs->unit_base = ts->unit_base;
1497 rs->unified_rw_rep += ts->unified_rw_rep;
1498
1499 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1500 if (!ts->runtime[j])
1501 continue;
1502 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1503 rs->min_run[j] = ts->runtime[j];
1504 if (ts->runtime[j] > rs->max_run[j])
1505 rs->max_run[j] = ts->runtime[j];
1506
1507 bw = 0;
1508 if (ts->runtime[j]) {
1509 unsigned long runt = ts->runtime[j];
1510 unsigned long long kb;
1511
1512 kb = ts->io_bytes[j] / rs->kb_base;
1513 bw = kb * 1000 / runt;
1514 }
1515 if (bw < rs->min_bw[j])
1516 rs->min_bw[j] = bw;
1517 if (bw > rs->max_bw[j])
1518 rs->max_bw[j] = bw;
1519
1520 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1521 }
1522 }
1523
1524 for (i = 0; i < groupid + 1; i++) {
1525 int ddir;
1526
1527 rs = &runstats[i];
1528
1529 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1530 if (rs->max_run[ddir])
1531 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1532 rs->max_run[ddir];
1533 }
1534 }
1535
1536 /*
1537 * don't overwrite last signal output
1538 */
1539 if (output_format == FIO_OUTPUT_NORMAL)
1540 log_info("\n");
1541 else if (output_format == FIO_OUTPUT_JSON) {
1542 char time_buf[32];
1543 time_t time_p;
1544
1545 time(&time_p);
1546 os_ctime_r((const time_t *) &time_p, time_buf,
1547 sizeof(time_buf));
1548 time_buf[strlen(time_buf) - 1] = '\0';
1549
1550 root = json_create_object();
1551 json_object_add_value_string(root, "fio version", fio_version_string);
1552 json_object_add_value_int(root, "timestamp", time_p);
1553 json_object_add_value_string(root, "time", time_buf);
1554 array = json_create_array();
1555 json_object_add_value_array(root, "jobs", array);
1556 }
1557
1558 for (i = 0; i < nr_ts; i++) {
1559 ts = &threadstats[i];
1560 rs = &runstats[ts->groupid];
1561
1562 if (is_backend)
1563 fio_server_send_ts(ts, rs);
1564 else if (output_format == FIO_OUTPUT_TERSE)
1565 show_thread_status_terse(ts, rs);
1566 else if (output_format == FIO_OUTPUT_JSON) {
1567 struct json_object *tmp = show_thread_status_json(ts, rs);
1568 json_array_add_value_object(array, tmp);
1569 } else
1570 show_thread_status_normal(ts, rs);
1571 }
1572 if (output_format == FIO_OUTPUT_JSON) {
1573 /* disk util stats, if any */
1574 show_disk_util(1, root);
1575
1576 show_idle_prof_stats(FIO_OUTPUT_JSON, root);
1577
1578 json_print_object(root);
1579 log_info("\n");
1580 json_free_object(root);
1581 }
1582
1583 for (i = 0; i < groupid + 1; i++) {
1584 rs = &runstats[i];
1585
1586 rs->groupid = i;
1587 if (is_backend)
1588 fio_server_send_gs(rs);
1589 else if (output_format == FIO_OUTPUT_NORMAL)
1590 show_group_stats(rs);
1591 }
1592
1593 if (is_backend)
1594 fio_server_send_du();
1595 else if (output_format == FIO_OUTPUT_NORMAL) {
1596 show_disk_util(0, NULL);
1597 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL);
1598 }
1599
1600 if ( !(output_format == FIO_OUTPUT_TERSE) && append_terse_output) {
1601 log_info("\nAdditional Terse Output:\n");
1602
1603 for (i = 0; i < nr_ts; i++) {
1604 ts = &threadstats[i];
1605 rs = &runstats[ts->groupid];
1606 show_thread_status_terse(ts, rs);
1607 }
1608 }
1609
1610 log_info_flush();
1611 free(runstats);
1612 free(threadstats);
1613}
1614
1615void show_run_stats(void)
1616{
1617 fio_mutex_down(stat_mutex);
1618 __show_run_stats();
1619 fio_mutex_up(stat_mutex);
1620}
1621
1622void __show_running_run_stats(void)
1623{
1624 struct thread_data *td;
1625 unsigned long long *rt;
1626 struct timeval tv;
1627 int i;
1628
1629 fio_mutex_down(stat_mutex);
1630
1631 rt = malloc(thread_number * sizeof(unsigned long long));
1632 fio_gettime(&tv, NULL);
1633
1634 for_each_td(td, i) {
1635 rt[i] = mtime_since(&td->start, &tv);
1636 if (td_read(td) && td->io_bytes[DDIR_READ])
1637 td->ts.runtime[DDIR_READ] += rt[i];
1638 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1639 td->ts.runtime[DDIR_WRITE] += rt[i];
1640 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1641 td->ts.runtime[DDIR_TRIM] += rt[i];
1642
1643 td->update_rusage = 1;
1644 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1645 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1646 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1647 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1648 }
1649
1650 for_each_td(td, i) {
1651 if (td->runstate >= TD_EXITED)
1652 continue;
1653 if (td->rusage_sem) {
1654 td->update_rusage = 1;
1655 fio_mutex_down(td->rusage_sem);
1656 }
1657 td->update_rusage = 0;
1658 }
1659
1660 __show_run_stats();
1661
1662 for_each_td(td, i) {
1663 if (td_read(td) && td->io_bytes[DDIR_READ])
1664 td->ts.runtime[DDIR_READ] -= rt[i];
1665 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1666 td->ts.runtime[DDIR_WRITE] -= rt[i];
1667 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1668 td->ts.runtime[DDIR_TRIM] -= rt[i];
1669 }
1670
1671 free(rt);
1672 fio_mutex_up(stat_mutex);
1673}
1674
1675static int status_interval_init;
1676static struct timeval status_time;
1677static int status_file_disabled;
1678
1679#define FIO_STATUS_FILE "fio-dump-status"
1680
1681static int check_status_file(void)
1682{
1683 struct stat sb;
1684 const char *temp_dir;
1685 char fio_status_file_path[PATH_MAX];
1686
1687 if (status_file_disabled)
1688 return 0;
1689
1690 temp_dir = getenv("TMPDIR");
1691 if (temp_dir == NULL) {
1692 temp_dir = getenv("TEMP");
1693 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1694 temp_dir = NULL;
1695 }
1696 if (temp_dir == NULL)
1697 temp_dir = "/tmp";
1698
1699 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1700
1701 if (stat(fio_status_file_path, &sb))
1702 return 0;
1703
1704 if (unlink(fio_status_file_path) < 0) {
1705 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1706 strerror(errno));
1707 log_err("fio: disabling status file updates\n");
1708 status_file_disabled = 1;
1709 }
1710
1711 return 1;
1712}
1713
1714void check_for_running_stats(void)
1715{
1716 if (status_interval) {
1717 if (!status_interval_init) {
1718 fio_gettime(&status_time, NULL);
1719 status_interval_init = 1;
1720 } else if (mtime_since_now(&status_time) >= status_interval) {
1721 show_running_run_stats();
1722 fio_gettime(&status_time, NULL);
1723 return;
1724 }
1725 }
1726 if (check_status_file()) {
1727 show_running_run_stats();
1728 return;
1729 }
1730}
1731
1732static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1733{
1734 double val = data;
1735 double delta;
1736
1737 if (data > is->max_val)
1738 is->max_val = data;
1739 if (data < is->min_val)
1740 is->min_val = data;
1741
1742 delta = val - is->mean.u.f;
1743 if (delta) {
1744 is->mean.u.f += delta / (is->samples + 1.0);
1745 is->S.u.f += delta * (val - is->mean.u.f);
1746 }
1747
1748 is->samples++;
1749}
1750
1751static void __add_log_sample(struct io_log *iolog, unsigned long val,
1752 enum fio_ddir ddir, unsigned int bs,
1753 unsigned long t, uint64_t offset)
1754{
1755 uint64_t nr_samples = iolog->nr_samples;
1756 struct io_sample *s;
1757
1758 if (iolog->disabled)
1759 return;
1760
1761 if (!iolog->nr_samples)
1762 iolog->avg_last = t;
1763
1764 if (iolog->nr_samples == iolog->max_samples) {
1765 size_t new_size;
1766 void *new_log;
1767
1768 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1769
1770 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1771 if (iolog_flush(iolog, 0)) {
1772 log_err("fio: failed flushing iolog! Will stop logging.\n");
1773 iolog->disabled = 1;
1774 return;
1775 }
1776 nr_samples = iolog->nr_samples;
1777 } else {
1778 new_log = realloc(iolog->log, new_size);
1779 if (!new_log) {
1780 log_err("fio: failed extending iolog! Will stop logging.\n");
1781 iolog->disabled = 1;
1782 return;
1783 }
1784 iolog->log = new_log;
1785 iolog->max_samples <<= 1;
1786 }
1787 }
1788
1789 s = get_sample(iolog, nr_samples);
1790
1791 s->val = val;
1792 s->time = t;
1793 io_sample_set_ddir(iolog, s, ddir);
1794 s->bs = bs;
1795
1796 if (iolog->log_offset) {
1797 struct io_sample_offset *so = (void *) s;
1798
1799 so->offset = offset;
1800 }
1801
1802 iolog->nr_samples++;
1803}
1804
1805static inline void reset_io_stat(struct io_stat *ios)
1806{
1807 ios->max_val = ios->min_val = ios->samples = 0;
1808 ios->mean.u.f = ios->S.u.f = 0;
1809}
1810
1811void reset_io_stats(struct thread_data *td)
1812{
1813 struct thread_stat *ts = &td->ts;
1814 int i, j;
1815
1816 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1817 reset_io_stat(&ts->clat_stat[i]);
1818 reset_io_stat(&ts->slat_stat[i]);
1819 reset_io_stat(&ts->lat_stat[i]);
1820 reset_io_stat(&ts->bw_stat[i]);
1821 reset_io_stat(&ts->iops_stat[i]);
1822
1823 ts->io_bytes[i] = 0;
1824 ts->runtime[i] = 0;
1825
1826 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1827 ts->io_u_plat[i][j] = 0;
1828 }
1829
1830 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1831 ts->io_u_map[i] = 0;
1832 ts->io_u_submit[i] = 0;
1833 ts->io_u_complete[i] = 0;
1834 ts->io_u_lat_u[i] = 0;
1835 ts->io_u_lat_m[i] = 0;
1836 ts->total_submit = 0;
1837 ts->total_complete = 0;
1838 }
1839
1840 for (i = 0; i < 3; i++) {
1841 ts->total_io_u[i] = 0;
1842 ts->short_io_u[i] = 0;
1843 ts->drop_io_u[i] = 0;
1844 }
1845}
1846
1847static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed)
1848{
1849 /*
1850 * Note an entry in the log. Use the mean from the logged samples,
1851 * making sure to properly round up. Only write a log entry if we
1852 * had actual samples done.
1853 */
1854 if (iolog->avg_window[DDIR_READ].samples) {
1855 unsigned long mr;
1856
1857 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
1858 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0);
1859 }
1860 if (iolog->avg_window[DDIR_WRITE].samples) {
1861 unsigned long mw;
1862
1863 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
1864 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0);
1865 }
1866 if (iolog->avg_window[DDIR_TRIM].samples) {
1867 unsigned long mw;
1868
1869 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
1870 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0);
1871 }
1872
1873 reset_io_stat(&iolog->avg_window[DDIR_READ]);
1874 reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
1875 reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
1876}
1877
1878static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1879 unsigned long val, enum fio_ddir ddir,
1880 unsigned int bs, uint64_t offset)
1881{
1882 unsigned long elapsed, this_window;
1883
1884 if (!ddir_rw(ddir))
1885 return;
1886
1887 elapsed = mtime_since_now(&td->epoch);
1888
1889 /*
1890 * If no time averaging, just add the log sample.
1891 */
1892 if (!iolog->avg_msec) {
1893 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1894 return;
1895 }
1896
1897 /*
1898 * Add the sample. If the time period has passed, then
1899 * add that entry to the log and clear.
1900 */
1901 add_stat_sample(&iolog->avg_window[ddir], val);
1902
1903 /*
1904 * If period hasn't passed, adding the above sample is all we
1905 * need to do.
1906 */
1907 this_window = elapsed - iolog->avg_last;
1908 if (this_window < iolog->avg_msec)
1909 return;
1910
1911 _add_stat_to_log(iolog, elapsed);
1912
1913 iolog->avg_last = elapsed;
1914}
1915
1916void finalize_logs(struct thread_data *td)
1917{
1918 unsigned long elapsed;
1919
1920 elapsed = mtime_since_now(&td->epoch);
1921
1922 if (td->clat_log)
1923 _add_stat_to_log(td->clat_log, elapsed);
1924 if (td->slat_log)
1925 _add_stat_to_log(td->slat_log, elapsed);
1926 if (td->lat_log)
1927 _add_stat_to_log(td->lat_log, elapsed);
1928 if (td->bw_log)
1929 _add_stat_to_log(td->bw_log, elapsed);
1930 if (td->iops_log)
1931 _add_stat_to_log(td->iops_log, elapsed);
1932}
1933
1934void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
1935{
1936 struct io_log *iolog;
1937
1938 if (!ddir_rw(ddir))
1939 return;
1940
1941 iolog = agg_io_log[ddir];
1942 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
1943}
1944
1945static void add_clat_percentile_sample(struct thread_stat *ts,
1946 unsigned long usec, enum fio_ddir ddir)
1947{
1948 unsigned int idx = plat_val_to_idx(usec);
1949 assert(idx < FIO_IO_U_PLAT_NR);
1950
1951 ts->io_u_plat[ddir][idx]++;
1952}
1953
1954void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
1955 unsigned long usec, unsigned int bs, uint64_t offset)
1956{
1957 struct thread_stat *ts = &td->ts;
1958
1959 if (!ddir_rw(ddir))
1960 return;
1961
1962 add_stat_sample(&ts->clat_stat[ddir], usec);
1963
1964 if (td->clat_log)
1965 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
1966
1967 if (ts->clat_percentiles)
1968 add_clat_percentile_sample(ts, usec, ddir);
1969}
1970
1971void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
1972 unsigned long usec, unsigned int bs, uint64_t offset)
1973{
1974 struct thread_stat *ts = &td->ts;
1975
1976 if (!ddir_rw(ddir))
1977 return;
1978
1979 add_stat_sample(&ts->slat_stat[ddir], usec);
1980
1981 if (td->slat_log)
1982 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
1983}
1984
1985void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
1986 unsigned long usec, unsigned int bs, uint64_t offset)
1987{
1988 struct thread_stat *ts = &td->ts;
1989
1990 if (!ddir_rw(ddir))
1991 return;
1992
1993 add_stat_sample(&ts->lat_stat[ddir], usec);
1994
1995 if (td->lat_log)
1996 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
1997}
1998
1999void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2000 struct timeval *t)
2001{
2002 struct thread_stat *ts = &td->ts;
2003 unsigned long spent, rate;
2004
2005 if (!ddir_rw(ddir))
2006 return;
2007
2008 spent = mtime_since(&td->bw_sample_time, t);
2009 if (spent < td->o.bw_avg_time)
2010 return;
2011
2012 td_io_u_lock(td);
2013
2014 /*
2015 * Compute both read and write rates for the interval.
2016 */
2017 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2018 uint64_t delta;
2019
2020 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2021 if (!delta)
2022 continue; /* No entries for interval */
2023
2024 if (spent)
2025 rate = delta * 1000 / spent / 1024;
2026 else
2027 rate = 0;
2028
2029 add_stat_sample(&ts->bw_stat[ddir], rate);
2030
2031 if (td->bw_log)
2032 add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2033
2034 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2035 }
2036
2037 fio_gettime(&td->bw_sample_time, NULL);
2038 td_io_u_unlock(td);
2039}
2040
2041void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2042 struct timeval *t)
2043{
2044 struct thread_stat *ts = &td->ts;
2045 unsigned long spent, iops;
2046
2047 if (!ddir_rw(ddir))
2048 return;
2049
2050 spent = mtime_since(&td->iops_sample_time, t);
2051 if (spent < td->o.iops_avg_time)
2052 return;
2053
2054 td_io_u_lock(td);
2055
2056 /*
2057 * Compute both read and write rates for the interval.
2058 */
2059 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2060 uint64_t delta;
2061
2062 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2063 if (!delta)
2064 continue; /* No entries for interval */
2065
2066 if (spent)
2067 iops = (delta * 1000) / spent;
2068 else
2069 iops = 0;
2070
2071 add_stat_sample(&ts->iops_stat[ddir], iops);
2072
2073 if (td->iops_log)
2074 add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2075
2076 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2077 }
2078
2079 fio_gettime(&td->iops_sample_time, NULL);
2080 td_io_u_unlock(td);
2081}
2082
2083void stat_init(void)
2084{
2085 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2086}
2087
2088void stat_exit(void)
2089{
2090 /*
2091 * When we have the mutex, we know out-of-band access to it
2092 * have ended.
2093 */
2094 fio_mutex_down(stat_mutex);
2095 fio_mutex_remove(stat_mutex);
2096}
2097
2098/*
2099 * Called from signal handler. Wake up status thread.
2100 */
2101void show_running_run_stats(void)
2102{
2103 helper_do_stat = 1;
2104 pthread_cond_signal(&helper_cond);
2105}
2106
2107uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2108{
2109 /* Ignore io_u's which span multiple blocks--they will just get
2110 * inaccurate counts. */
2111 int idx = (io_u->offset - io_u->file->file_offset)
2112 / td->o.bs[DDIR_TRIM];
2113 uint32_t *info = &td->ts.block_infos[idx];
2114 assert(idx < td->ts.nr_block_infos);
2115 return info;
2116}
fio - Flexible IO Tester