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stat: collapse buf output flush and free
[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#include "lib/pow2.h"
17#include "lib/output_buffer.h"
18
19struct fio_mutex *stat_mutex;
20
21void update_rusage_stat(struct thread_data *td)
22{
23 struct thread_stat *ts = &td->ts;
24
25 fio_getrusage(&td->ru_end);
26 ts->usr_time += mtime_since(&td->ru_start.ru_utime,
27 &td->ru_end.ru_utime);
28 ts->sys_time += mtime_since(&td->ru_start.ru_stime,
29 &td->ru_end.ru_stime);
30 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
31 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
32 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
33 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
34
35 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
36}
37
38/*
39 * Given a latency, return the index of the corresponding bucket in
40 * the structure tracking percentiles.
41 *
42 * (1) find the group (and error bits) that the value (latency)
43 * belongs to by looking at its MSB. (2) find the bucket number in the
44 * group by looking at the index bits.
45 *
46 */
47static unsigned int plat_val_to_idx(unsigned int val)
48{
49 unsigned int msb, error_bits, base, offset, idx;
50
51 /* Find MSB starting from bit 0 */
52 if (val == 0)
53 msb = 0;
54 else
55 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
56
57 /*
58 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
59 * all bits of the sample as index
60 */
61 if (msb <= FIO_IO_U_PLAT_BITS)
62 return val;
63
64 /* Compute the number of error bits to discard*/
65 error_bits = msb - FIO_IO_U_PLAT_BITS;
66
67 /* Compute the number of buckets before the group */
68 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
69
70 /*
71 * Discard the error bits and apply the mask to find the
72 * index for the buckets in the group
73 */
74 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
75
76 /* Make sure the index does not exceed (array size - 1) */
77 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
78 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
79
80 return idx;
81}
82
83/*
84 * Convert the given index of the bucket array to the value
85 * represented by the bucket
86 */
87static unsigned int plat_idx_to_val(unsigned int idx)
88{
89 unsigned int error_bits, k, base;
90
91 assert(idx < FIO_IO_U_PLAT_NR);
92
93 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
94 * all bits of the sample as index */
95 if (idx < (FIO_IO_U_PLAT_VAL << 1))
96 return idx;
97
98 /* Find the group and compute the minimum value of that group */
99 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
100 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
101
102 /* Find its bucket number of the group */
103 k = idx % FIO_IO_U_PLAT_VAL;
104
105 /* Return the mean of the range of the bucket */
106 return base + ((k + 0.5) * (1 << error_bits));
107}
108
109static int double_cmp(const void *a, const void *b)
110{
111 const fio_fp64_t fa = *(const fio_fp64_t *) a;
112 const fio_fp64_t fb = *(const fio_fp64_t *) b;
113 int cmp = 0;
114
115 if (fa.u.f > fb.u.f)
116 cmp = 1;
117 else if (fa.u.f < fb.u.f)
118 cmp = -1;
119
120 return cmp;
121}
122
123unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
124 fio_fp64_t *plist, unsigned int **output,
125 unsigned int *maxv, unsigned int *minv)
126{
127 unsigned long sum = 0;
128 unsigned int len, i, j = 0;
129 unsigned int oval_len = 0;
130 unsigned int *ovals = NULL;
131 int is_last;
132
133 *minv = -1U;
134 *maxv = 0;
135
136 len = 0;
137 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
138 len++;
139
140 if (!len)
141 return 0;
142
143 /*
144 * Sort the percentile list. Note that it may already be sorted if
145 * we are using the default values, but since it's a short list this
146 * isn't a worry. Also note that this does not work for NaN values.
147 */
148 if (len > 1)
149 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
150
151 /*
152 * Calculate bucket values, note down max and min values
153 */
154 is_last = 0;
155 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
156 sum += io_u_plat[i];
157 while (sum >= (plist[j].u.f / 100.0 * nr)) {
158 assert(plist[j].u.f <= 100.0);
159
160 if (j == oval_len) {
161 oval_len += 100;
162 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
163 }
164
165 ovals[j] = plat_idx_to_val(i);
166 if (ovals[j] < *minv)
167 *minv = ovals[j];
168 if (ovals[j] > *maxv)
169 *maxv = ovals[j];
170
171 is_last = (j == len - 1);
172 if (is_last)
173 break;
174
175 j++;
176 }
177 }
178
179 *output = ovals;
180 return len;
181}
182
183/*
184 * Find and display the p-th percentile of clat
185 */
186static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
187 fio_fp64_t *plist, unsigned int precision,
188 struct buf_output *out)
189{
190 unsigned int len, j = 0, minv, maxv;
191 unsigned int *ovals;
192 int is_last, per_line, scale_down;
193 char fmt[32];
194
195 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
196 if (!len)
197 goto out;
198
199 /*
200 * We default to usecs, but if the value range is such that we
201 * should scale down to msecs, do that.
202 */
203 if (minv > 2000 && maxv > 99999) {
204 scale_down = 1;
205 log_buf(out, " clat percentiles (msec):\n |");
206 } else {
207 scale_down = 0;
208 log_buf(out, " clat percentiles (usec):\n |");
209 }
210
211 snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
212 per_line = (80 - 7) / (precision + 14);
213
214 for (j = 0; j < len; j++) {
215 char fbuf[16], *ptr = fbuf;
216
217 /* for formatting */
218 if (j != 0 && (j % per_line) == 0)
219 log_buf(out, " |");
220
221 /* end of the list */
222 is_last = (j == len - 1);
223
224 if (plist[j].u.f < 10.0)
225 ptr += sprintf(fbuf, " ");
226
227 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
228
229 if (scale_down)
230 ovals[j] = (ovals[j] + 999) / 1000;
231
232 log_buf(out, " %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
233
234 if (is_last)
235 break;
236
237 if ((j % per_line) == per_line - 1) /* for formatting */
238 log_buf(out, "\n");
239 }
240
241out:
242 if (ovals)
243 free(ovals);
244}
245
246int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
247 double *mean, double *dev)
248{
249 double n = (double) is->samples;
250
251 if (n == 0)
252 return 0;
253
254 *min = is->min_val;
255 *max = is->max_val;
256 *mean = is->mean.u.f;
257
258 if (n > 1.0)
259 *dev = sqrt(is->S.u.f / (n - 1.0));
260 else
261 *dev = 0;
262
263 return 1;
264}
265
266void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
267{
268 char *p1, *p2, *p3, *p4;
269 const char *str[] = { " READ", " WRITE" , " TRIM"};
270 int i;
271
272 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
273
274 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
275 const int i2p = is_power_of_2(rs->kb_base);
276
277 if (!rs->max_run[i])
278 continue;
279
280 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
281 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
282 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
283 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
284
285 log_buf(out, "%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
286 " mint=%llumsec, maxt=%llumsec\n",
287 rs->unified_rw_rep ? " MIXED" : str[i],
288 p1, p2, p3, p4,
289 (unsigned long long) rs->min_run[i],
290 (unsigned long long) rs->max_run[i]);
291
292 free(p1);
293 free(p2);
294 free(p3);
295 free(p4);
296 }
297}
298
299void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
300{
301 int i;
302
303 /*
304 * Do depth distribution calculations
305 */
306 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
307 if (total) {
308 io_u_dist[i] = (double) map[i] / (double) total;
309 io_u_dist[i] *= 100.0;
310 if (io_u_dist[i] < 0.1 && map[i])
311 io_u_dist[i] = 0.1;
312 } else
313 io_u_dist[i] = 0.0;
314 }
315}
316
317static void stat_calc_lat(struct thread_stat *ts, double *dst,
318 unsigned int *src, int nr)
319{
320 unsigned long total = ddir_rw_sum(ts->total_io_u);
321 int i;
322
323 /*
324 * Do latency distribution calculations
325 */
326 for (i = 0; i < nr; i++) {
327 if (total) {
328 dst[i] = (double) src[i] / (double) total;
329 dst[i] *= 100.0;
330 if (dst[i] < 0.01 && src[i])
331 dst[i] = 0.01;
332 } else
333 dst[i] = 0.0;
334 }
335}
336
337void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
338{
339 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
340}
341
342void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
343{
344 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
345}
346
347static void display_lat(const char *name, unsigned long min, unsigned long max,
348 double mean, double dev, struct buf_output *out)
349{
350 const char *base = "(usec)";
351 char *minp, *maxp;
352
353 if (!usec_to_msec(&min, &max, &mean, &dev))
354 base = "(msec)";
355
356 minp = num2str(min, 6, 1, 0, 0);
357 maxp = num2str(max, 6, 1, 0, 0);
358
359 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
360 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
361
362 free(minp);
363 free(maxp);
364}
365
366static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
367 int ddir, struct buf_output *out)
368{
369 const char *str[] = { "read ", "write", "trim" };
370 unsigned long min, max, runt;
371 unsigned long long bw, iops;
372 double mean, dev;
373 char *io_p, *bw_p, *iops_p;
374 int i2p;
375
376 assert(ddir_rw(ddir));
377
378 if (!ts->runtime[ddir])
379 return;
380
381 i2p = is_power_of_2(rs->kb_base);
382 runt = ts->runtime[ddir];
383
384 bw = (1000 * ts->io_bytes[ddir]) / runt;
385 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
386 bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
387
388 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
389 iops_p = num2str(iops, 6, 1, 0, 0);
390
391 log_buf(out, " %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
392 rs->unified_rw_rep ? "mixed" : str[ddir],
393 io_p, bw_p, iops_p,
394 (unsigned long long) ts->runtime[ddir]);
395
396 free(io_p);
397 free(bw_p);
398 free(iops_p);
399
400 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
401 display_lat("slat", min, max, mean, dev, out);
402 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
403 display_lat("clat", min, max, mean, dev, out);
404 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
405 display_lat(" lat", min, max, mean, dev, out);
406
407 if (ts->clat_percentiles) {
408 show_clat_percentiles(ts->io_u_plat[ddir],
409 ts->clat_stat[ddir].samples,
410 ts->percentile_list,
411 ts->percentile_precision, out);
412 }
413 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
414 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
415 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
416
417 if (rs->unit_base == 1) {
418 min *= 8.0;
419 max *= 8.0;
420 mean *= 8.0;
421 dev *= 8.0;
422 }
423
424 if (rs->agg[ddir]) {
425 p_of_agg = mean * 100 / (double) rs->agg[ddir];
426 if (p_of_agg > 100.0)
427 p_of_agg = 100.0;
428 }
429
430 if (mean > fkb_base * fkb_base) {
431 min /= fkb_base;
432 max /= fkb_base;
433 mean /= fkb_base;
434 dev /= fkb_base;
435 bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
436 }
437
438 log_buf(out, " bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
439 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
440 p_of_agg, mean, dev);
441 }
442}
443
444static int show_lat(double *io_u_lat, int nr, const char **ranges,
445 const char *msg, struct buf_output *out)
446{
447 int new_line = 1, i, line = 0, shown = 0;
448
449 for (i = 0; i < nr; i++) {
450 if (io_u_lat[i] <= 0.0)
451 continue;
452 shown = 1;
453 if (new_line) {
454 if (line)
455 log_buf(out, "\n");
456 log_buf(out, " lat (%s) : ", msg);
457 new_line = 0;
458 line = 0;
459 }
460 if (line)
461 log_buf(out, ", ");
462 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
463 line++;
464 if (line == 5)
465 new_line = 1;
466 }
467
468 if (shown)
469 log_buf(out, "\n");
470
471 return shown;
472}
473
474static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
475{
476 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
477 "250=", "500=", "750=", "1000=", };
478
479 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
480}
481
482static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
483{
484 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
485 "250=", "500=", "750=", "1000=", "2000=",
486 ">=2000=", };
487
488 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
489}
490
491static void show_latencies(struct thread_stat *ts, struct buf_output *out)
492{
493 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
494 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
495
496 stat_calc_lat_u(ts, io_u_lat_u);
497 stat_calc_lat_m(ts, io_u_lat_m);
498
499 show_lat_u(io_u_lat_u, out);
500 show_lat_m(io_u_lat_m, out);
501}
502
503static int block_state_category(int block_state)
504{
505 switch (block_state) {
506 case BLOCK_STATE_UNINIT:
507 return 0;
508 case BLOCK_STATE_TRIMMED:
509 case BLOCK_STATE_WRITTEN:
510 return 1;
511 case BLOCK_STATE_WRITE_FAILURE:
512 case BLOCK_STATE_TRIM_FAILURE:
513 return 2;
514 default:
515 /* Silence compile warning on some BSDs and have a return */
516 assert(0);
517 return -1;
518 }
519}
520
521static int compare_block_infos(const void *bs1, const void *bs2)
522{
523 uint32_t block1 = *(uint32_t *)bs1;
524 uint32_t block2 = *(uint32_t *)bs2;
525 int state1 = BLOCK_INFO_STATE(block1);
526 int state2 = BLOCK_INFO_STATE(block2);
527 int bscat1 = block_state_category(state1);
528 int bscat2 = block_state_category(state2);
529 int cycles1 = BLOCK_INFO_TRIMS(block1);
530 int cycles2 = BLOCK_INFO_TRIMS(block2);
531
532 if (bscat1 < bscat2)
533 return -1;
534 if (bscat1 > bscat2)
535 return 1;
536
537 if (cycles1 < cycles2)
538 return -1;
539 if (cycles1 > cycles2)
540 return 1;
541
542 if (state1 < state2)
543 return -1;
544 if (state1 > state2)
545 return 1;
546
547 assert(block1 == block2);
548 return 0;
549}
550
551static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
552 fio_fp64_t *plist, unsigned int **percentiles,
553 unsigned int *types)
554{
555 int len = 0;
556 int i, nr_uninit;
557
558 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
559
560 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
561 len++;
562
563 if (!len)
564 return 0;
565
566 /*
567 * Sort the percentile list. Note that it may already be sorted if
568 * we are using the default values, but since it's a short list this
569 * isn't a worry. Also note that this does not work for NaN values.
570 */
571 if (len > 1)
572 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
573
574 nr_uninit = 0;
575 /* Start only after the uninit entries end */
576 for (nr_uninit = 0;
577 nr_uninit < nr_block_infos
578 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
579 nr_uninit ++)
580 ;
581
582 if (nr_uninit == nr_block_infos)
583 return 0;
584
585 *percentiles = calloc(len, sizeof(**percentiles));
586
587 for (i = 0; i < len; i++) {
588 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
589 + nr_uninit;
590 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
591 }
592
593 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
594 for (i = 0; i < nr_block_infos; i++)
595 types[BLOCK_INFO_STATE(block_infos[i])]++;
596
597 return len;
598}
599
600static const char *block_state_names[] = {
601 [BLOCK_STATE_UNINIT] = "unwritten",
602 [BLOCK_STATE_TRIMMED] = "trimmed",
603 [BLOCK_STATE_WRITTEN] = "written",
604 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
605 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
606};
607
608static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
609 fio_fp64_t *plist, struct buf_output *out)
610{
611 int len, pos, i;
612 unsigned int *percentiles = NULL;
613 unsigned int block_state_counts[BLOCK_STATE_COUNT];
614
615 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
616 &percentiles, block_state_counts);
617
618 log_buf(out, " block lifetime percentiles :\n |");
619 pos = 0;
620 for (i = 0; i < len; i++) {
621 uint32_t block_info = percentiles[i];
622#define LINE_LENGTH 75
623 char str[LINE_LENGTH];
624 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
625 plist[i].u.f, block_info,
626 i == len - 1 ? '\n' : ',');
627 assert(strln < LINE_LENGTH);
628 if (pos + strln > LINE_LENGTH) {
629 pos = 0;
630 log_buf(out, "\n |");
631 }
632 log_buf(out, "%s", str);
633 pos += strln;
634#undef LINE_LENGTH
635 }
636 if (percentiles)
637 free(percentiles);
638
639 log_buf(out, " states :");
640 for (i = 0; i < BLOCK_STATE_COUNT; i++)
641 log_buf(out, " %s=%u%c",
642 block_state_names[i], block_state_counts[i],
643 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
644}
645
646static void show_thread_status_normal(struct thread_stat *ts,
647 struct group_run_stats *rs,
648 struct buf_output *out)
649{
650 double usr_cpu, sys_cpu;
651 unsigned long runtime;
652 double io_u_dist[FIO_IO_U_MAP_NR];
653 time_t time_p;
654 char time_buf[32];
655
656 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
657 return;
658
659 time(&time_p);
660 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
661
662 if (!ts->error) {
663 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
664 ts->name, ts->groupid, ts->members,
665 ts->error, (int) ts->pid, time_buf);
666 } else {
667 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
668 ts->name, ts->groupid, ts->members,
669 ts->error, ts->verror, (int) ts->pid,
670 time_buf);
671 }
672
673 if (strlen(ts->description))
674 log_buf(out, " Description : [%s]\n", ts->description);
675
676 if (ts->io_bytes[DDIR_READ])
677 show_ddir_status(rs, ts, DDIR_READ, out);
678 if (ts->io_bytes[DDIR_WRITE])
679 show_ddir_status(rs, ts, DDIR_WRITE, out);
680 if (ts->io_bytes[DDIR_TRIM])
681 show_ddir_status(rs, ts, DDIR_TRIM, out);
682
683 show_latencies(ts, out);
684
685 runtime = ts->total_run_time;
686 if (runtime) {
687 double runt = (double) runtime;
688
689 usr_cpu = (double) ts->usr_time * 100 / runt;
690 sys_cpu = (double) ts->sys_time * 100 / runt;
691 } else {
692 usr_cpu = 0;
693 sys_cpu = 0;
694 }
695
696 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
697 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
698 (unsigned long long) ts->ctx,
699 (unsigned long long) ts->majf,
700 (unsigned long long) ts->minf);
701
702 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
703 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
704 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
705 io_u_dist[1], io_u_dist[2],
706 io_u_dist[3], io_u_dist[4],
707 io_u_dist[5], io_u_dist[6]);
708
709 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
710 log_buf(out, " submit : 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 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
716 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
717 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
718 io_u_dist[1], io_u_dist[2],
719 io_u_dist[3], io_u_dist[4],
720 io_u_dist[5], io_u_dist[6]);
721 log_buf(out, " issued : total=r=%llu/w=%llu/d=%llu,"
722 " short=r=%llu/w=%llu/d=%llu,"
723 " drop=r=%llu/w=%llu/d=%llu\n",
724 (unsigned long long) ts->total_io_u[0],
725 (unsigned long long) ts->total_io_u[1],
726 (unsigned long long) ts->total_io_u[2],
727 (unsigned long long) ts->short_io_u[0],
728 (unsigned long long) ts->short_io_u[1],
729 (unsigned long long) ts->short_io_u[2],
730 (unsigned long long) ts->drop_io_u[0],
731 (unsigned long long) ts->drop_io_u[1],
732 (unsigned long long) ts->drop_io_u[2]);
733 if (ts->continue_on_error) {
734 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
735 (unsigned long long)ts->total_err_count,
736 ts->first_error,
737 strerror(ts->first_error));
738 }
739 if (ts->latency_depth) {
740 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
741 (unsigned long long)ts->latency_target,
742 (unsigned long long)ts->latency_window,
743 ts->latency_percentile.u.f,
744 ts->latency_depth);
745 }
746
747 if (ts->nr_block_infos)
748 show_block_infos(ts->nr_block_infos, ts->block_infos,
749 ts->percentile_list, out);
750}
751
752static void show_ddir_status_terse(struct thread_stat *ts,
753 struct group_run_stats *rs, int ddir,
754 struct buf_output *out)
755{
756 unsigned long min, max;
757 unsigned long long bw, iops;
758 unsigned int *ovals = NULL;
759 double mean, dev;
760 unsigned int len, minv, maxv;
761 int i;
762
763 assert(ddir_rw(ddir));
764
765 iops = bw = 0;
766 if (ts->runtime[ddir]) {
767 uint64_t runt = ts->runtime[ddir];
768
769 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
770 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
771 }
772
773 log_buf(out, ";%llu;%llu;%llu;%llu",
774 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
775 (unsigned long long) ts->runtime[ddir]);
776
777 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
778 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
779 else
780 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
781
782 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
783 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
784 else
785 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
786
787 if (ts->clat_percentiles) {
788 len = calc_clat_percentiles(ts->io_u_plat[ddir],
789 ts->clat_stat[ddir].samples,
790 ts->percentile_list, &ovals, &maxv,
791 &minv);
792 } else
793 len = 0;
794
795 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
796 if (i >= len) {
797 log_buf(out, ";0%%=0");
798 continue;
799 }
800 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
801 }
802
803 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
804 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
805 else
806 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
807
808 if (ovals)
809 free(ovals);
810
811 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
812 double p_of_agg = 100.0;
813
814 if (rs->agg[ddir]) {
815 p_of_agg = mean * 100 / (double) rs->agg[ddir];
816 if (p_of_agg > 100.0)
817 p_of_agg = 100.0;
818 }
819
820 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
821 } else
822 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
823}
824
825static void add_ddir_status_json(struct thread_stat *ts,
826 struct group_run_stats *rs, int ddir, struct json_object *parent)
827{
828 unsigned long min, max;
829 unsigned long long bw;
830 unsigned int *ovals = NULL;
831 double mean, dev, iops;
832 unsigned int len, minv, maxv;
833 int i;
834 const char *ddirname[] = {"read", "write", "trim"};
835 struct json_object *dir_object, *tmp_object, *percentile_object;
836 char buf[120];
837 double p_of_agg = 100.0;
838
839 assert(ddir_rw(ddir));
840
841 if (ts->unified_rw_rep && ddir != DDIR_READ)
842 return;
843
844 dir_object = json_create_object();
845 json_object_add_value_object(parent,
846 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
847
848 bw = 0;
849 iops = 0.0;
850 if (ts->runtime[ddir]) {
851 uint64_t runt = ts->runtime[ddir];
852
853 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
854 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
855 }
856
857 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
858 json_object_add_value_int(dir_object, "bw", bw);
859 json_object_add_value_float(dir_object, "iops", iops);
860 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
861 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
862 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
863 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
864
865 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
866 min = max = 0;
867 mean = dev = 0.0;
868 }
869 tmp_object = json_create_object();
870 json_object_add_value_object(dir_object, "slat", tmp_object);
871 json_object_add_value_int(tmp_object, "min", min);
872 json_object_add_value_int(tmp_object, "max", max);
873 json_object_add_value_float(tmp_object, "mean", mean);
874 json_object_add_value_float(tmp_object, "stddev", dev);
875
876 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
877 min = max = 0;
878 mean = dev = 0.0;
879 }
880 tmp_object = json_create_object();
881 json_object_add_value_object(dir_object, "clat", tmp_object);
882 json_object_add_value_int(tmp_object, "min", min);
883 json_object_add_value_int(tmp_object, "max", max);
884 json_object_add_value_float(tmp_object, "mean", mean);
885 json_object_add_value_float(tmp_object, "stddev", dev);
886
887 if (ts->clat_percentiles) {
888 len = calc_clat_percentiles(ts->io_u_plat[ddir],
889 ts->clat_stat[ddir].samples,
890 ts->percentile_list, &ovals, &maxv,
891 &minv);
892 } else
893 len = 0;
894
895 percentile_object = json_create_object();
896 json_object_add_value_object(tmp_object, "percentile", percentile_object);
897 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
898 if (i >= len) {
899 json_object_add_value_int(percentile_object, "0.00", 0);
900 continue;
901 }
902 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
903 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
904 }
905
906 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
907 min = max = 0;
908 mean = dev = 0.0;
909 }
910 tmp_object = json_create_object();
911 json_object_add_value_object(dir_object, "lat", tmp_object);
912 json_object_add_value_int(tmp_object, "min", min);
913 json_object_add_value_int(tmp_object, "max", max);
914 json_object_add_value_float(tmp_object, "mean", mean);
915 json_object_add_value_float(tmp_object, "stddev", dev);
916 if (ovals)
917 free(ovals);
918
919 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
920 if (rs->agg[ddir]) {
921 p_of_agg = mean * 100 / (double) rs->agg[ddir];
922 if (p_of_agg > 100.0)
923 p_of_agg = 100.0;
924 }
925 } else {
926 min = max = 0;
927 p_of_agg = mean = dev = 0.0;
928 }
929 json_object_add_value_int(dir_object, "bw_min", min);
930 json_object_add_value_int(dir_object, "bw_max", max);
931 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
932 json_object_add_value_float(dir_object, "bw_mean", mean);
933 json_object_add_value_float(dir_object, "bw_dev", dev);
934}
935
936static void show_thread_status_terse_v2(struct thread_stat *ts,
937 struct group_run_stats *rs,
938 struct buf_output *out)
939{
940 double io_u_dist[FIO_IO_U_MAP_NR];
941 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
942 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
943 double usr_cpu, sys_cpu;
944 int i;
945
946 /* General Info */
947 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
948 /* Log Read Status */
949 show_ddir_status_terse(ts, rs, DDIR_READ, out);
950 /* Log Write Status */
951 show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
952 /* Log Trim Status */
953 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
954
955 /* CPU Usage */
956 if (ts->total_run_time) {
957 double runt = (double) ts->total_run_time;
958
959 usr_cpu = (double) ts->usr_time * 100 / runt;
960 sys_cpu = (double) ts->sys_time * 100 / runt;
961 } else {
962 usr_cpu = 0;
963 sys_cpu = 0;
964 }
965
966 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
967 (unsigned long long) ts->ctx,
968 (unsigned long long) ts->majf,
969 (unsigned long long) ts->minf);
970
971 /* Calc % distribution of IO depths, usecond, msecond latency */
972 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
973 stat_calc_lat_u(ts, io_u_lat_u);
974 stat_calc_lat_m(ts, io_u_lat_m);
975
976 /* Only show fixed 7 I/O depth levels*/
977 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
978 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
979 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
980
981 /* Microsecond latency */
982 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
983 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
984 /* Millisecond latency */
985 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
986 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
987 /* Additional output if continue_on_error set - default off*/
988 if (ts->continue_on_error)
989 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
990 log_buf(out, "\n");
991
992 /* Additional output if description is set */
993 if (strlen(ts->description))
994 log_buf(out, ";%s", ts->description);
995
996 log_buf(out, "\n");
997}
998
999static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1000 struct group_run_stats *rs, int ver,
1001 struct buf_output *out)
1002{
1003 double io_u_dist[FIO_IO_U_MAP_NR];
1004 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1005 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1006 double usr_cpu, sys_cpu;
1007 int i;
1008
1009 /* General Info */
1010 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1011 ts->name, ts->groupid, ts->error);
1012 /* Log Read Status */
1013 show_ddir_status_terse(ts, rs, DDIR_READ, out);
1014 /* Log Write Status */
1015 show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1016 /* Log Trim Status */
1017 if (ver == 4)
1018 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1019
1020 /* CPU Usage */
1021 if (ts->total_run_time) {
1022 double runt = (double) ts->total_run_time;
1023
1024 usr_cpu = (double) ts->usr_time * 100 / runt;
1025 sys_cpu = (double) ts->sys_time * 100 / runt;
1026 } else {
1027 usr_cpu = 0;
1028 sys_cpu = 0;
1029 }
1030
1031 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1032 (unsigned long long) ts->ctx,
1033 (unsigned long long) ts->majf,
1034 (unsigned long long) ts->minf);
1035
1036 /* Calc % distribution of IO depths, usecond, msecond latency */
1037 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1038 stat_calc_lat_u(ts, io_u_lat_u);
1039 stat_calc_lat_m(ts, io_u_lat_m);
1040
1041 /* Only show fixed 7 I/O depth levels*/
1042 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1043 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1044 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1045
1046 /* Microsecond latency */
1047 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1048 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1049 /* Millisecond latency */
1050 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1051 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1052
1053 /* disk util stats, if any */
1054 show_disk_util(1, NULL, out);
1055
1056 /* Additional output if continue_on_error set - default off*/
1057 if (ts->continue_on_error)
1058 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1059
1060 /* Additional output if description is set */
1061 if (strlen(ts->description))
1062 log_buf(out, ";%s", ts->description);
1063
1064 log_buf(out, "\n");
1065}
1066
1067static struct json_object *show_thread_status_json(struct thread_stat *ts,
1068 struct group_run_stats *rs)
1069{
1070 struct json_object *root, *tmp;
1071 struct jobs_eta *je;
1072 double io_u_dist[FIO_IO_U_MAP_NR];
1073 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1074 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1075 double usr_cpu, sys_cpu;
1076 int i;
1077 size_t size;
1078
1079 root = json_create_object();
1080 json_object_add_value_string(root, "jobname", ts->name);
1081 json_object_add_value_int(root, "groupid", ts->groupid);
1082 json_object_add_value_int(root, "error", ts->error);
1083
1084 /* ETA Info */
1085 je = get_jobs_eta(1, &size);
1086 json_object_add_value_int(root, "eta", je->eta_sec);
1087 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1088
1089
1090 add_ddir_status_json(ts, rs, DDIR_READ, root);
1091 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1092 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1093
1094 /* CPU Usage */
1095 if (ts->total_run_time) {
1096 double runt = (double) ts->total_run_time;
1097
1098 usr_cpu = (double) ts->usr_time * 100 / runt;
1099 sys_cpu = (double) ts->sys_time * 100 / runt;
1100 } else {
1101 usr_cpu = 0;
1102 sys_cpu = 0;
1103 }
1104 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1105 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1106 json_object_add_value_int(root, "ctx", ts->ctx);
1107 json_object_add_value_int(root, "majf", ts->majf);
1108 json_object_add_value_int(root, "minf", ts->minf);
1109
1110
1111 /* Calc % distribution of IO depths, usecond, msecond latency */
1112 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1113 stat_calc_lat_u(ts, io_u_lat_u);
1114 stat_calc_lat_m(ts, io_u_lat_m);
1115
1116 tmp = json_create_object();
1117 json_object_add_value_object(root, "iodepth_level", tmp);
1118 /* Only show fixed 7 I/O depth levels*/
1119 for (i = 0; i < 7; i++) {
1120 char name[20];
1121 if (i < 6)
1122 snprintf(name, 20, "%d", 1 << i);
1123 else
1124 snprintf(name, 20, ">=%d", 1 << i);
1125 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1126 }
1127
1128 tmp = json_create_object();
1129 json_object_add_value_object(root, "latency_us", tmp);
1130 /* Microsecond latency */
1131 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1132 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1133 "250", "500", "750", "1000", };
1134 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1135 }
1136 /* Millisecond latency */
1137 tmp = json_create_object();
1138 json_object_add_value_object(root, "latency_ms", tmp);
1139 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1140 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1141 "250", "500", "750", "1000", "2000",
1142 ">=2000", };
1143 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1144 }
1145
1146 /* Additional output if continue_on_error set - default off*/
1147 if (ts->continue_on_error) {
1148 json_object_add_value_int(root, "total_err", ts->total_err_count);
1149 json_object_add_value_int(root, "first_error", ts->first_error);
1150 }
1151
1152 if (ts->latency_depth) {
1153 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1154 json_object_add_value_int(root, "latency_target", ts->latency_target);
1155 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1156 json_object_add_value_int(root, "latency_window", ts->latency_window);
1157 }
1158
1159 /* Additional output if description is set */
1160 if (strlen(ts->description))
1161 json_object_add_value_string(root, "desc", ts->description);
1162
1163 if (ts->nr_block_infos) {
1164 /* Block error histogram and types */
1165 int len;
1166 unsigned int *percentiles = NULL;
1167 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1168
1169 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1170 ts->percentile_list,
1171 &percentiles, block_state_counts);
1172
1173 if (len) {
1174 struct json_object *block, *percentile_object, *states;
1175 int state, i;
1176 block = json_create_object();
1177 json_object_add_value_object(root, "block", block);
1178
1179 percentile_object = json_create_object();
1180 json_object_add_value_object(block, "percentiles",
1181 percentile_object);
1182 for (i = 0; i < len; i++) {
1183 char buf[20];
1184 snprintf(buf, sizeof(buf), "%f",
1185 ts->percentile_list[i].u.f);
1186 json_object_add_value_int(percentile_object,
1187 (const char *)buf,
1188 percentiles[i]);
1189 }
1190
1191 states = json_create_object();
1192 json_object_add_value_object(block, "states", states);
1193 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1194 json_object_add_value_int(states,
1195 block_state_names[state],
1196 block_state_counts[state]);
1197 }
1198 free(percentiles);
1199 }
1200 }
1201
1202 return root;
1203}
1204
1205static void show_thread_status_terse(struct thread_stat *ts,
1206 struct group_run_stats *rs,
1207 struct buf_output *out)
1208{
1209 if (terse_version == 2)
1210 show_thread_status_terse_v2(ts, rs, out);
1211 else if (terse_version == 3 || terse_version == 4)
1212 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1213 else
1214 log_err("fio: bad terse version!? %d\n", terse_version);
1215}
1216
1217struct json_object *show_thread_status(struct thread_stat *ts,
1218 struct group_run_stats *rs,
1219 struct buf_output *out)
1220{
1221 struct json_object *ret = NULL;
1222
1223 if (output_format & FIO_OUTPUT_TERSE)
1224 show_thread_status_terse(ts, rs, out);
1225 if (output_format & FIO_OUTPUT_JSON)
1226 ret = show_thread_status_json(ts, rs);
1227 if (output_format & FIO_OUTPUT_NORMAL)
1228 show_thread_status_normal(ts, rs, out);
1229
1230 return ret;
1231}
1232
1233static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
1234{
1235 double mean, S;
1236
1237 if (src->samples == 0)
1238 return;
1239
1240 dst->min_val = min(dst->min_val, src->min_val);
1241 dst->max_val = max(dst->max_val, src->max_val);
1242
1243 /*
1244 * Compute new mean and S after the merge
1245 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1246 * #Parallel_algorithm>
1247 */
1248 if (nr == 1) {
1249 mean = src->mean.u.f;
1250 S = src->S.u.f;
1251 } else {
1252 double delta = src->mean.u.f - dst->mean.u.f;
1253
1254 mean = ((src->mean.u.f * src->samples) +
1255 (dst->mean.u.f * dst->samples)) /
1256 (dst->samples + src->samples);
1257
1258 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1259 (dst->samples * src->samples) /
1260 (dst->samples + src->samples);
1261 }
1262
1263 dst->samples += src->samples;
1264 dst->mean.u.f = mean;
1265 dst->S.u.f = S;
1266}
1267
1268void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1269{
1270 int i;
1271
1272 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1273 if (dst->max_run[i] < src->max_run[i])
1274 dst->max_run[i] = src->max_run[i];
1275 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1276 dst->min_run[i] = src->min_run[i];
1277 if (dst->max_bw[i] < src->max_bw[i])
1278 dst->max_bw[i] = src->max_bw[i];
1279 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1280 dst->min_bw[i] = src->min_bw[i];
1281
1282 dst->io_kb[i] += src->io_kb[i];
1283 dst->agg[i] += src->agg[i];
1284 }
1285
1286 if (!dst->kb_base)
1287 dst->kb_base = src->kb_base;
1288 if (!dst->unit_base)
1289 dst->unit_base = src->unit_base;
1290}
1291
1292void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
1293{
1294 int l, k;
1295
1296 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1297 if (!dst->unified_rw_rep) {
1298 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
1299 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
1300 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
1301 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
1302
1303 dst->io_bytes[l] += src->io_bytes[l];
1304
1305 if (dst->runtime[l] < src->runtime[l])
1306 dst->runtime[l] = src->runtime[l];
1307 } else {
1308 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr);
1309 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr);
1310 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr);
1311 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr);
1312
1313 dst->io_bytes[0] += src->io_bytes[l];
1314
1315 if (dst->runtime[0] < src->runtime[l])
1316 dst->runtime[0] = src->runtime[l];
1317 }
1318 }
1319
1320 dst->usr_time += src->usr_time;
1321 dst->sys_time += src->sys_time;
1322 dst->ctx += src->ctx;
1323 dst->majf += src->majf;
1324 dst->minf += src->minf;
1325
1326 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1327 dst->io_u_map[k] += src->io_u_map[k];
1328 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1329 dst->io_u_submit[k] += src->io_u_submit[k];
1330 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1331 dst->io_u_complete[k] += src->io_u_complete[k];
1332 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1333 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1334 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1335 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1336
1337 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1338 if (!dst->unified_rw_rep) {
1339 dst->total_io_u[k] += src->total_io_u[k];
1340 dst->short_io_u[k] += src->short_io_u[k];
1341 dst->drop_io_u[k] += src->drop_io_u[k];
1342 } else {
1343 dst->total_io_u[0] += src->total_io_u[k];
1344 dst->short_io_u[0] += src->short_io_u[k];
1345 dst->drop_io_u[0] += src->drop_io_u[k];
1346 }
1347 }
1348
1349 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1350 int m;
1351
1352 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1353 if (!dst->unified_rw_rep)
1354 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1355 else
1356 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1357 }
1358 }
1359
1360 dst->total_run_time += src->total_run_time;
1361 dst->total_submit += src->total_submit;
1362 dst->total_complete += src->total_complete;
1363}
1364
1365void init_group_run_stat(struct group_run_stats *gs)
1366{
1367 int i;
1368 memset(gs, 0, sizeof(*gs));
1369
1370 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1371 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1372}
1373
1374void init_thread_stat(struct thread_stat *ts)
1375{
1376 int j;
1377
1378 memset(ts, 0, sizeof(*ts));
1379
1380 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1381 ts->lat_stat[j].min_val = -1UL;
1382 ts->clat_stat[j].min_val = -1UL;
1383 ts->slat_stat[j].min_val = -1UL;
1384 ts->bw_stat[j].min_val = -1UL;
1385 }
1386 ts->groupid = -1;
1387}
1388
1389void __show_run_stats(void)
1390{
1391 struct group_run_stats *runstats, *rs;
1392 struct thread_data *td;
1393 struct thread_stat *threadstats, *ts;
1394 int i, j, k, nr_ts, last_ts, idx;
1395 int kb_base_warned = 0;
1396 int unit_base_warned = 0;
1397 struct json_object *root = NULL;
1398 struct json_array *array = NULL;
1399 struct buf_output output[FIO_OUTPUT_NR];
1400
1401 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1402
1403 for (i = 0; i < groupid + 1; i++)
1404 init_group_run_stat(&runstats[i]);
1405
1406 /*
1407 * find out how many threads stats we need. if group reporting isn't
1408 * enabled, it's one-per-td.
1409 */
1410 nr_ts = 0;
1411 last_ts = -1;
1412 for_each_td(td, i) {
1413 if (!td->o.group_reporting) {
1414 nr_ts++;
1415 continue;
1416 }
1417 if (last_ts == td->groupid)
1418 continue;
1419
1420 last_ts = td->groupid;
1421 nr_ts++;
1422 }
1423
1424 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1425
1426 for (i = 0; i < nr_ts; i++)
1427 init_thread_stat(&threadstats[i]);
1428
1429 j = 0;
1430 last_ts = -1;
1431 idx = 0;
1432 for_each_td(td, i) {
1433 if (idx && (!td->o.group_reporting ||
1434 (td->o.group_reporting && last_ts != td->groupid))) {
1435 idx = 0;
1436 j++;
1437 }
1438
1439 last_ts = td->groupid;
1440
1441 ts = &threadstats[j];
1442
1443 ts->clat_percentiles = td->o.clat_percentiles;
1444 ts->percentile_precision = td->o.percentile_precision;
1445 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1446
1447 idx++;
1448 ts->members++;
1449
1450 if (ts->groupid == -1) {
1451 /*
1452 * These are per-group shared already
1453 */
1454 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1455 if (td->o.description)
1456 strncpy(ts->description, td->o.description,
1457 FIO_JOBDESC_SIZE - 1);
1458 else
1459 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1460
1461 /*
1462 * If multiple entries in this group, this is
1463 * the first member.
1464 */
1465 ts->thread_number = td->thread_number;
1466 ts->groupid = td->groupid;
1467
1468 /*
1469 * first pid in group, not very useful...
1470 */
1471 ts->pid = td->pid;
1472
1473 ts->kb_base = td->o.kb_base;
1474 ts->unit_base = td->o.unit_base;
1475 ts->unified_rw_rep = td->o.unified_rw_rep;
1476 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1477 log_info("fio: kb_base differs for jobs in group, using"
1478 " %u as the base\n", ts->kb_base);
1479 kb_base_warned = 1;
1480 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1481 log_info("fio: unit_base differs for jobs in group, using"
1482 " %u as the base\n", ts->unit_base);
1483 unit_base_warned = 1;
1484 }
1485
1486 ts->continue_on_error = td->o.continue_on_error;
1487 ts->total_err_count += td->total_err_count;
1488 ts->first_error = td->first_error;
1489 if (!ts->error) {
1490 if (!td->error && td->o.continue_on_error &&
1491 td->first_error) {
1492 ts->error = td->first_error;
1493 ts->verror[sizeof(ts->verror) - 1] = '\0';
1494 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1495 } else if (td->error) {
1496 ts->error = td->error;
1497 ts->verror[sizeof(ts->verror) - 1] = '\0';
1498 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1499 }
1500 }
1501
1502 ts->latency_depth = td->latency_qd;
1503 ts->latency_target = td->o.latency_target;
1504 ts->latency_percentile = td->o.latency_percentile;
1505 ts->latency_window = td->o.latency_window;
1506
1507 ts->nr_block_infos = td->ts.nr_block_infos;
1508 for (k = 0; k < ts->nr_block_infos; k++)
1509 ts->block_infos[k] = td->ts.block_infos[k];
1510
1511 sum_thread_stats(ts, &td->ts, idx);
1512 }
1513
1514 for (i = 0; i < nr_ts; i++) {
1515 unsigned long long bw;
1516
1517 ts = &threadstats[i];
1518 rs = &runstats[ts->groupid];
1519 rs->kb_base = ts->kb_base;
1520 rs->unit_base = ts->unit_base;
1521 rs->unified_rw_rep += ts->unified_rw_rep;
1522
1523 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1524 if (!ts->runtime[j])
1525 continue;
1526 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1527 rs->min_run[j] = ts->runtime[j];
1528 if (ts->runtime[j] > rs->max_run[j])
1529 rs->max_run[j] = ts->runtime[j];
1530
1531 bw = 0;
1532 if (ts->runtime[j]) {
1533 unsigned long runt = ts->runtime[j];
1534 unsigned long long kb;
1535
1536 kb = ts->io_bytes[j] / rs->kb_base;
1537 bw = kb * 1000 / runt;
1538 }
1539 if (bw < rs->min_bw[j])
1540 rs->min_bw[j] = bw;
1541 if (bw > rs->max_bw[j])
1542 rs->max_bw[j] = bw;
1543
1544 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1545 }
1546 }
1547
1548 for (i = 0; i < groupid + 1; i++) {
1549 int ddir;
1550
1551 rs = &runstats[i];
1552
1553 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1554 if (rs->max_run[ddir])
1555 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1556 rs->max_run[ddir];
1557 }
1558 }
1559
1560 for (i = 0; i < FIO_OUTPUT_NR; i++)
1561 buf_output_init(&output[i]);
1562
1563 /*
1564 * don't overwrite last signal output
1565 */
1566 if (output_format & FIO_OUTPUT_NORMAL)
1567 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1568 if (output_format & FIO_OUTPUT_JSON) {
1569 char time_buf[32];
1570 time_t time_p;
1571
1572 time(&time_p);
1573 os_ctime_r((const time_t *) &time_p, time_buf,
1574 sizeof(time_buf));
1575 time_buf[strlen(time_buf) - 1] = '\0';
1576
1577 root = json_create_object();
1578 json_object_add_value_string(root, "fio version", fio_version_string);
1579 json_object_add_value_int(root, "timestamp", time_p);
1580 json_object_add_value_string(root, "time", time_buf);
1581 array = json_create_array();
1582 json_object_add_value_array(root, "jobs", array);
1583 }
1584
1585 for (i = 0; i < nr_ts; i++) {
1586 ts = &threadstats[i];
1587 rs = &runstats[ts->groupid];
1588
1589 if (is_backend)
1590 fio_server_send_ts(ts, rs);
1591 else {
1592 if (output_format & FIO_OUTPUT_TERSE)
1593 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1594 if (output_format & FIO_OUTPUT_JSON) {
1595 struct json_object *tmp = show_thread_status_json(ts, rs);
1596 json_array_add_value_object(array, tmp);
1597 }
1598 if (output_format & FIO_OUTPUT_NORMAL)
1599 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1600 }
1601 }
1602 if (output_format & FIO_OUTPUT_JSON) {
1603 /* disk util stats, if any */
1604 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1605
1606 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1607
1608 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1609 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1610 json_free_object(root);
1611 }
1612
1613 for (i = 0; i < groupid + 1; i++) {
1614 rs = &runstats[i];
1615
1616 rs->groupid = i;
1617 if (is_backend)
1618 fio_server_send_gs(rs);
1619 else if (output_format & FIO_OUTPUT_NORMAL)
1620 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1621 }
1622
1623 if (is_backend)
1624 fio_server_send_du();
1625 else if (output_format & FIO_OUTPUT_NORMAL) {
1626 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1627 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1628 }
1629
1630 for (i = 0; i < FIO_OUTPUT_NR; i++) {
1631 buf_output_flush(&output[i]);
1632 buf_output_free(&output[i]);
1633 }
1634
1635 log_info_flush();
1636 free(runstats);
1637 free(threadstats);
1638}
1639
1640void show_run_stats(void)
1641{
1642 fio_mutex_down(stat_mutex);
1643 __show_run_stats();
1644 fio_mutex_up(stat_mutex);
1645}
1646
1647void __show_running_run_stats(void)
1648{
1649 struct thread_data *td;
1650 unsigned long long *rt;
1651 struct timeval tv;
1652 int i;
1653
1654 fio_mutex_down(stat_mutex);
1655
1656 rt = malloc(thread_number * sizeof(unsigned long long));
1657 fio_gettime(&tv, NULL);
1658
1659 for_each_td(td, i) {
1660 rt[i] = mtime_since(&td->start, &tv);
1661 if (td_read(td) && td->io_bytes[DDIR_READ])
1662 td->ts.runtime[DDIR_READ] += rt[i];
1663 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1664 td->ts.runtime[DDIR_WRITE] += rt[i];
1665 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1666 td->ts.runtime[DDIR_TRIM] += rt[i];
1667
1668 td->update_rusage = 1;
1669 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1670 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1671 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1672 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1673 }
1674
1675 for_each_td(td, i) {
1676 if (td->runstate >= TD_EXITED)
1677 continue;
1678 if (td->rusage_sem) {
1679 td->update_rusage = 1;
1680 fio_mutex_down(td->rusage_sem);
1681 }
1682 td->update_rusage = 0;
1683 }
1684
1685 __show_run_stats();
1686
1687 for_each_td(td, i) {
1688 if (td_read(td) && td->io_bytes[DDIR_READ])
1689 td->ts.runtime[DDIR_READ] -= rt[i];
1690 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1691 td->ts.runtime[DDIR_WRITE] -= rt[i];
1692 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1693 td->ts.runtime[DDIR_TRIM] -= rt[i];
1694 }
1695
1696 free(rt);
1697 fio_mutex_up(stat_mutex);
1698}
1699
1700static int status_interval_init;
1701static struct timeval status_time;
1702static int status_file_disabled;
1703
1704#define FIO_STATUS_FILE "fio-dump-status"
1705
1706static int check_status_file(void)
1707{
1708 struct stat sb;
1709 const char *temp_dir;
1710 char fio_status_file_path[PATH_MAX];
1711
1712 if (status_file_disabled)
1713 return 0;
1714
1715 temp_dir = getenv("TMPDIR");
1716 if (temp_dir == NULL) {
1717 temp_dir = getenv("TEMP");
1718 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1719 temp_dir = NULL;
1720 }
1721 if (temp_dir == NULL)
1722 temp_dir = "/tmp";
1723
1724 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1725
1726 if (stat(fio_status_file_path, &sb))
1727 return 0;
1728
1729 if (unlink(fio_status_file_path) < 0) {
1730 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1731 strerror(errno));
1732 log_err("fio: disabling status file updates\n");
1733 status_file_disabled = 1;
1734 }
1735
1736 return 1;
1737}
1738
1739void check_for_running_stats(void)
1740{
1741 if (status_interval) {
1742 if (!status_interval_init) {
1743 fio_gettime(&status_time, NULL);
1744 status_interval_init = 1;
1745 } else if (mtime_since_now(&status_time) >= status_interval) {
1746 show_running_run_stats();
1747 fio_gettime(&status_time, NULL);
1748 return;
1749 }
1750 }
1751 if (check_status_file()) {
1752 show_running_run_stats();
1753 return;
1754 }
1755}
1756
1757static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1758{
1759 double val = data;
1760 double delta;
1761
1762 if (data > is->max_val)
1763 is->max_val = data;
1764 if (data < is->min_val)
1765 is->min_val = data;
1766
1767 delta = val - is->mean.u.f;
1768 if (delta) {
1769 is->mean.u.f += delta / (is->samples + 1.0);
1770 is->S.u.f += delta * (val - is->mean.u.f);
1771 }
1772
1773 is->samples++;
1774}
1775
1776static void __add_log_sample(struct io_log *iolog, unsigned long val,
1777 enum fio_ddir ddir, unsigned int bs,
1778 unsigned long t, uint64_t offset)
1779{
1780 uint64_t nr_samples = iolog->nr_samples;
1781 struct io_sample *s;
1782
1783 if (iolog->disabled)
1784 return;
1785
1786 if (!iolog->nr_samples)
1787 iolog->avg_last = t;
1788
1789 if (iolog->nr_samples == iolog->max_samples) {
1790 size_t new_size;
1791 void *new_log;
1792
1793 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1794
1795 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1796 if (iolog_flush(iolog, 0)) {
1797 log_err("fio: failed flushing iolog! Will stop logging.\n");
1798 iolog->disabled = 1;
1799 return;
1800 }
1801 nr_samples = iolog->nr_samples;
1802 } else {
1803 new_log = realloc(iolog->log, new_size);
1804 if (!new_log) {
1805 log_err("fio: failed extending iolog! Will stop logging.\n");
1806 iolog->disabled = 1;
1807 return;
1808 }
1809 iolog->log = new_log;
1810 iolog->max_samples <<= 1;
1811 }
1812 }
1813
1814 s = get_sample(iolog, nr_samples);
1815
1816 s->val = val;
1817 s->time = t;
1818 io_sample_set_ddir(iolog, s, ddir);
1819 s->bs = bs;
1820
1821 if (iolog->log_offset) {
1822 struct io_sample_offset *so = (void *) s;
1823
1824 so->offset = offset;
1825 }
1826
1827 iolog->nr_samples++;
1828}
1829
1830static inline void reset_io_stat(struct io_stat *ios)
1831{
1832 ios->max_val = ios->min_val = ios->samples = 0;
1833 ios->mean.u.f = ios->S.u.f = 0;
1834}
1835
1836void reset_io_stats(struct thread_data *td)
1837{
1838 struct thread_stat *ts = &td->ts;
1839 int i, j;
1840
1841 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1842 reset_io_stat(&ts->clat_stat[i]);
1843 reset_io_stat(&ts->slat_stat[i]);
1844 reset_io_stat(&ts->lat_stat[i]);
1845 reset_io_stat(&ts->bw_stat[i]);
1846 reset_io_stat(&ts->iops_stat[i]);
1847
1848 ts->io_bytes[i] = 0;
1849 ts->runtime[i] = 0;
1850
1851 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1852 ts->io_u_plat[i][j] = 0;
1853 }
1854
1855 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1856 ts->io_u_map[i] = 0;
1857 ts->io_u_submit[i] = 0;
1858 ts->io_u_complete[i] = 0;
1859 ts->io_u_lat_u[i] = 0;
1860 ts->io_u_lat_m[i] = 0;
1861 ts->total_submit = 0;
1862 ts->total_complete = 0;
1863 }
1864
1865 for (i = 0; i < 3; i++) {
1866 ts->total_io_u[i] = 0;
1867 ts->short_io_u[i] = 0;
1868 ts->drop_io_u[i] = 0;
1869 }
1870}
1871
1872static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed)
1873{
1874 /*
1875 * Note an entry in the log. Use the mean from the logged samples,
1876 * making sure to properly round up. Only write a log entry if we
1877 * had actual samples done.
1878 */
1879 if (iolog->avg_window[DDIR_READ].samples) {
1880 unsigned long mr;
1881
1882 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
1883 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0);
1884 }
1885 if (iolog->avg_window[DDIR_WRITE].samples) {
1886 unsigned long mw;
1887
1888 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
1889 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0);
1890 }
1891 if (iolog->avg_window[DDIR_TRIM].samples) {
1892 unsigned long mw;
1893
1894 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
1895 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0);
1896 }
1897
1898 reset_io_stat(&iolog->avg_window[DDIR_READ]);
1899 reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
1900 reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
1901}
1902
1903static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1904 unsigned long val, enum fio_ddir ddir,
1905 unsigned int bs, uint64_t offset)
1906{
1907 unsigned long elapsed, this_window;
1908
1909 if (!ddir_rw(ddir))
1910 return;
1911
1912 elapsed = mtime_since_now(&td->epoch);
1913
1914 /*
1915 * If no time averaging, just add the log sample.
1916 */
1917 if (!iolog->avg_msec) {
1918 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1919 return;
1920 }
1921
1922 /*
1923 * Add the sample. If the time period has passed, then
1924 * add that entry to the log and clear.
1925 */
1926 add_stat_sample(&iolog->avg_window[ddir], val);
1927
1928 /*
1929 * If period hasn't passed, adding the above sample is all we
1930 * need to do.
1931 */
1932 this_window = elapsed - iolog->avg_last;
1933 if (this_window < iolog->avg_msec)
1934 return;
1935
1936 _add_stat_to_log(iolog, elapsed);
1937
1938 iolog->avg_last = elapsed;
1939}
1940
1941void finalize_logs(struct thread_data *td)
1942{
1943 unsigned long elapsed;
1944
1945 elapsed = mtime_since_now(&td->epoch);
1946
1947 if (td->clat_log)
1948 _add_stat_to_log(td->clat_log, elapsed);
1949 if (td->slat_log)
1950 _add_stat_to_log(td->slat_log, elapsed);
1951 if (td->lat_log)
1952 _add_stat_to_log(td->lat_log, elapsed);
1953 if (td->bw_log)
1954 _add_stat_to_log(td->bw_log, elapsed);
1955 if (td->iops_log)
1956 _add_stat_to_log(td->iops_log, elapsed);
1957}
1958
1959void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
1960{
1961 struct io_log *iolog;
1962
1963 if (!ddir_rw(ddir))
1964 return;
1965
1966 iolog = agg_io_log[ddir];
1967 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
1968}
1969
1970static void add_clat_percentile_sample(struct thread_stat *ts,
1971 unsigned long usec, enum fio_ddir ddir)
1972{
1973 unsigned int idx = plat_val_to_idx(usec);
1974 assert(idx < FIO_IO_U_PLAT_NR);
1975
1976 ts->io_u_plat[ddir][idx]++;
1977}
1978
1979void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
1980 unsigned long usec, unsigned int bs, uint64_t offset)
1981{
1982 struct thread_stat *ts = &td->ts;
1983
1984 if (!ddir_rw(ddir))
1985 return;
1986
1987 td_io_u_lock(td);
1988
1989 add_stat_sample(&ts->clat_stat[ddir], usec);
1990
1991 if (td->clat_log)
1992 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
1993
1994 if (ts->clat_percentiles)
1995 add_clat_percentile_sample(ts, usec, ddir);
1996
1997 td_io_u_unlock(td);
1998}
1999
2000void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2001 unsigned long usec, unsigned int bs, uint64_t offset)
2002{
2003 struct thread_stat *ts = &td->ts;
2004
2005 if (!ddir_rw(ddir))
2006 return;
2007
2008 td_io_u_lock(td);
2009
2010 add_stat_sample(&ts->slat_stat[ddir], usec);
2011
2012 if (td->slat_log)
2013 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
2014
2015 td_io_u_unlock(td);
2016}
2017
2018void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2019 unsigned long usec, unsigned int bs, uint64_t offset)
2020{
2021 struct thread_stat *ts = &td->ts;
2022
2023 if (!ddir_rw(ddir))
2024 return;
2025
2026 td_io_u_lock(td);
2027
2028 add_stat_sample(&ts->lat_stat[ddir], usec);
2029
2030 if (td->lat_log)
2031 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2032
2033 td_io_u_unlock(td);
2034}
2035
2036void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2037 struct timeval *t)
2038{
2039 struct thread_stat *ts = &td->ts;
2040 unsigned long spent, rate;
2041
2042 if (!ddir_rw(ddir))
2043 return;
2044
2045 spent = mtime_since(&td->bw_sample_time, t);
2046 if (spent < td->o.bw_avg_time)
2047 return;
2048
2049 td_io_u_lock(td);
2050
2051 /*
2052 * Compute both read and write rates for the interval.
2053 */
2054 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2055 uint64_t delta;
2056
2057 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2058 if (!delta)
2059 continue; /* No entries for interval */
2060
2061 if (spent)
2062 rate = delta * 1000 / spent / 1024;
2063 else
2064 rate = 0;
2065
2066 add_stat_sample(&ts->bw_stat[ddir], rate);
2067
2068 if (td->bw_log)
2069 add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2070
2071 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2072 }
2073
2074 fio_gettime(&td->bw_sample_time, NULL);
2075 td_io_u_unlock(td);
2076}
2077
2078void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2079 struct timeval *t)
2080{
2081 struct thread_stat *ts = &td->ts;
2082 unsigned long spent, iops;
2083
2084 if (!ddir_rw(ddir))
2085 return;
2086
2087 spent = mtime_since(&td->iops_sample_time, t);
2088 if (spent < td->o.iops_avg_time)
2089 return;
2090
2091 td_io_u_lock(td);
2092
2093 /*
2094 * Compute both read and write rates for the interval.
2095 */
2096 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2097 uint64_t delta;
2098
2099 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2100 if (!delta)
2101 continue; /* No entries for interval */
2102
2103 if (spent)
2104 iops = (delta * 1000) / spent;
2105 else
2106 iops = 0;
2107
2108 add_stat_sample(&ts->iops_stat[ddir], iops);
2109
2110 if (td->iops_log)
2111 add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2112
2113 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2114 }
2115
2116 fio_gettime(&td->iops_sample_time, NULL);
2117 td_io_u_unlock(td);
2118}
2119
2120void stat_init(void)
2121{
2122 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2123}
2124
2125void stat_exit(void)
2126{
2127 /*
2128 * When we have the mutex, we know out-of-band access to it
2129 * have ended.
2130 */
2131 fio_mutex_down(stat_mutex);
2132 fio_mutex_remove(stat_mutex);
2133}
2134
2135/*
2136 * Called from signal handler. Wake up status thread.
2137 */
2138void show_running_run_stats(void)
2139{
2140 helper_do_stat = 1;
2141 pthread_cond_signal(&helper_cond);
2142}
2143
2144uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2145{
2146 /* Ignore io_u's which span multiple blocks--they will just get
2147 * inaccurate counts. */
2148 int idx = (io_u->offset - io_u->file->file_offset)
2149 / td->o.bs[DDIR_TRIM];
2150 uint32_t *info = &td->ts.block_infos[idx];
2151 assert(idx < td->ts.nr_block_infos);
2152 return info;
2153}
fio - Flexible IO Tester