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iolog: ensure we always store compressed, if log_store_compressed == 1
[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 clear_rusage_stat(struct thread_data *td)
22{
23 struct thread_stat *ts = &td->ts;
24
25 fio_getrusage(&td->ru_start);
26 ts->usr_time = ts->sys_time = 0;
27 ts->ctx = 0;
28 ts->minf = ts->majf = 0;
29}
30
31void update_rusage_stat(struct thread_data *td)
32{
33 struct thread_stat *ts = &td->ts;
34
35 fio_getrusage(&td->ru_end);
36 ts->usr_time += mtime_since(&td->ru_start.ru_utime,
37 &td->ru_end.ru_utime);
38 ts->sys_time += mtime_since(&td->ru_start.ru_stime,
39 &td->ru_end.ru_stime);
40 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
41 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
42 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
43 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
44
45 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
46}
47
48/*
49 * Given a latency, return the index of the corresponding bucket in
50 * the structure tracking percentiles.
51 *
52 * (1) find the group (and error bits) that the value (latency)
53 * belongs to by looking at its MSB. (2) find the bucket number in the
54 * group by looking at the index bits.
55 *
56 */
57static unsigned int plat_val_to_idx(unsigned int val)
58{
59 unsigned int msb, error_bits, base, offset, idx;
60
61 /* Find MSB starting from bit 0 */
62 if (val == 0)
63 msb = 0;
64 else
65 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
66
67 /*
68 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
69 * all bits of the sample as index
70 */
71 if (msb <= FIO_IO_U_PLAT_BITS)
72 return val;
73
74 /* Compute the number of error bits to discard*/
75 error_bits = msb - FIO_IO_U_PLAT_BITS;
76
77 /* Compute the number of buckets before the group */
78 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
79
80 /*
81 * Discard the error bits and apply the mask to find the
82 * index for the buckets in the group
83 */
84 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
85
86 /* Make sure the index does not exceed (array size - 1) */
87 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
88 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
89
90 return idx;
91}
92
93/*
94 * Convert the given index of the bucket array to the value
95 * represented by the bucket
96 */
97static unsigned int plat_idx_to_val(unsigned int idx)
98{
99 unsigned int error_bits, k, base;
100
101 assert(idx < FIO_IO_U_PLAT_NR);
102
103 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
104 * all bits of the sample as index */
105 if (idx < (FIO_IO_U_PLAT_VAL << 1))
106 return idx;
107
108 /* Find the group and compute the minimum value of that group */
109 error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
110 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
111
112 /* Find its bucket number of the group */
113 k = idx % FIO_IO_U_PLAT_VAL;
114
115 /* Return the mean of the range of the bucket */
116 return base + ((k + 0.5) * (1 << error_bits));
117}
118
119static int double_cmp(const void *a, const void *b)
120{
121 const fio_fp64_t fa = *(const fio_fp64_t *) a;
122 const fio_fp64_t fb = *(const fio_fp64_t *) b;
123 int cmp = 0;
124
125 if (fa.u.f > fb.u.f)
126 cmp = 1;
127 else if (fa.u.f < fb.u.f)
128 cmp = -1;
129
130 return cmp;
131}
132
133unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
134 fio_fp64_t *plist, unsigned int **output,
135 unsigned int *maxv, unsigned int *minv)
136{
137 unsigned long sum = 0;
138 unsigned int len, i, j = 0;
139 unsigned int oval_len = 0;
140 unsigned int *ovals = NULL;
141 int is_last;
142
143 *minv = -1U;
144 *maxv = 0;
145
146 len = 0;
147 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
148 len++;
149
150 if (!len)
151 return 0;
152
153 /*
154 * Sort the percentile list. Note that it may already be sorted if
155 * we are using the default values, but since it's a short list this
156 * isn't a worry. Also note that this does not work for NaN values.
157 */
158 if (len > 1)
159 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
160
161 /*
162 * Calculate bucket values, note down max and min values
163 */
164 is_last = 0;
165 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
166 sum += io_u_plat[i];
167 while (sum >= (plist[j].u.f / 100.0 * nr)) {
168 assert(plist[j].u.f <= 100.0);
169
170 if (j == oval_len) {
171 oval_len += 100;
172 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
173 }
174
175 ovals[j] = plat_idx_to_val(i);
176 if (ovals[j] < *minv)
177 *minv = ovals[j];
178 if (ovals[j] > *maxv)
179 *maxv = ovals[j];
180
181 is_last = (j == len - 1);
182 if (is_last)
183 break;
184
185 j++;
186 }
187 }
188
189 *output = ovals;
190 return len;
191}
192
193/*
194 * Find and display the p-th percentile of clat
195 */
196static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
197 fio_fp64_t *plist, unsigned int precision,
198 struct buf_output *out)
199{
200 unsigned int len, j = 0, minv, maxv;
201 unsigned int *ovals;
202 int is_last, per_line, scale_down;
203 char fmt[32];
204
205 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
206 if (!len)
207 goto out;
208
209 /*
210 * We default to usecs, but if the value range is such that we
211 * should scale down to msecs, do that.
212 */
213 if (minv > 2000 && maxv > 99999) {
214 scale_down = 1;
215 log_buf(out, " clat percentiles (msec):\n |");
216 } else {
217 scale_down = 0;
218 log_buf(out, " clat percentiles (usec):\n |");
219 }
220
221 snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
222 per_line = (80 - 7) / (precision + 14);
223
224 for (j = 0; j < len; j++) {
225 char fbuf[16], *ptr = fbuf;
226
227 /* for formatting */
228 if (j != 0 && (j % per_line) == 0)
229 log_buf(out, " |");
230
231 /* end of the list */
232 is_last = (j == len - 1);
233
234 if (plist[j].u.f < 10.0)
235 ptr += sprintf(fbuf, " ");
236
237 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
238
239 if (scale_down)
240 ovals[j] = (ovals[j] + 999) / 1000;
241
242 log_buf(out, " %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
243
244 if (is_last)
245 break;
246
247 if ((j % per_line) == per_line - 1) /* for formatting */
248 log_buf(out, "\n");
249 }
250
251out:
252 if (ovals)
253 free(ovals);
254}
255
256int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
257 double *mean, double *dev)
258{
259 double n = (double) is->samples;
260
261 if (n == 0)
262 return 0;
263
264 *min = is->min_val;
265 *max = is->max_val;
266 *mean = is->mean.u.f;
267
268 if (n > 1.0)
269 *dev = sqrt(is->S.u.f / (n - 1.0));
270 else
271 *dev = 0;
272
273 return 1;
274}
275
276void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
277{
278 char *p1, *p2, *p3, *p4;
279 const char *str[] = { " READ", " WRITE" , " TRIM"};
280 int i;
281
282 log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
283
284 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
285 const int i2p = is_power_of_2(rs->kb_base);
286
287 if (!rs->max_run[i])
288 continue;
289
290 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
291 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
292 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
293 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
294
295 log_buf(out, "%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
296 " mint=%llumsec, maxt=%llumsec\n",
297 rs->unified_rw_rep ? " MIXED" : str[i],
298 p1, p2, p3, p4,
299 (unsigned long long) rs->min_run[i],
300 (unsigned long long) rs->max_run[i]);
301
302 free(p1);
303 free(p2);
304 free(p3);
305 free(p4);
306 }
307}
308
309void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
310{
311 int i;
312
313 /*
314 * Do depth distribution calculations
315 */
316 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
317 if (total) {
318 io_u_dist[i] = (double) map[i] / (double) total;
319 io_u_dist[i] *= 100.0;
320 if (io_u_dist[i] < 0.1 && map[i])
321 io_u_dist[i] = 0.1;
322 } else
323 io_u_dist[i] = 0.0;
324 }
325}
326
327static void stat_calc_lat(struct thread_stat *ts, double *dst,
328 unsigned int *src, int nr)
329{
330 unsigned long total = ddir_rw_sum(ts->total_io_u);
331 int i;
332
333 /*
334 * Do latency distribution calculations
335 */
336 for (i = 0; i < nr; i++) {
337 if (total) {
338 dst[i] = (double) src[i] / (double) total;
339 dst[i] *= 100.0;
340 if (dst[i] < 0.01 && src[i])
341 dst[i] = 0.01;
342 } else
343 dst[i] = 0.0;
344 }
345}
346
347void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
348{
349 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
350}
351
352void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
353{
354 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
355}
356
357static void display_lat(const char *name, unsigned long min, unsigned long max,
358 double mean, double dev, struct buf_output *out)
359{
360 const char *base = "(usec)";
361 char *minp, *maxp;
362
363 if (!usec_to_msec(&min, &max, &mean, &dev))
364 base = "(msec)";
365
366 minp = num2str(min, 6, 1, 0, 0);
367 maxp = num2str(max, 6, 1, 0, 0);
368
369 log_buf(out, " %s %s: min=%s, max=%s, avg=%5.02f,"
370 " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
371
372 free(minp);
373 free(maxp);
374}
375
376static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
377 int ddir, struct buf_output *out)
378{
379 const char *str[] = { "read ", "write", "trim" };
380 unsigned long min, max, runt;
381 unsigned long long bw, iops;
382 double mean, dev;
383 char *io_p, *bw_p, *iops_p;
384 int i2p;
385
386 assert(ddir_rw(ddir));
387
388 if (!ts->runtime[ddir])
389 return;
390
391 i2p = is_power_of_2(rs->kb_base);
392 runt = ts->runtime[ddir];
393
394 bw = (1000 * ts->io_bytes[ddir]) / runt;
395 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
396 bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
397
398 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
399 iops_p = num2str(iops, 6, 1, 0, 0);
400
401 log_buf(out, " %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
402 rs->unified_rw_rep ? "mixed" : str[ddir],
403 io_p, bw_p, iops_p,
404 (unsigned long long) ts->runtime[ddir]);
405
406 free(io_p);
407 free(bw_p);
408 free(iops_p);
409
410 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
411 display_lat("slat", min, max, mean, dev, out);
412 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
413 display_lat("clat", min, max, mean, dev, out);
414 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
415 display_lat(" lat", min, max, mean, dev, out);
416
417 if (ts->clat_percentiles) {
418 show_clat_percentiles(ts->io_u_plat[ddir],
419 ts->clat_stat[ddir].samples,
420 ts->percentile_list,
421 ts->percentile_precision, out);
422 }
423 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
424 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
425 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
426
427 if (rs->unit_base == 1) {
428 min *= 8.0;
429 max *= 8.0;
430 mean *= 8.0;
431 dev *= 8.0;
432 }
433
434 if (rs->agg[ddir]) {
435 p_of_agg = mean * 100 / (double) rs->agg[ddir];
436 if (p_of_agg > 100.0)
437 p_of_agg = 100.0;
438 }
439
440 if (mean > fkb_base * fkb_base) {
441 min /= fkb_base;
442 max /= fkb_base;
443 mean /= fkb_base;
444 dev /= fkb_base;
445 bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
446 }
447
448 log_buf(out, " bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
449 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
450 p_of_agg, mean, dev);
451 }
452}
453
454static int show_lat(double *io_u_lat, int nr, const char **ranges,
455 const char *msg, struct buf_output *out)
456{
457 int new_line = 1, i, line = 0, shown = 0;
458
459 for (i = 0; i < nr; i++) {
460 if (io_u_lat[i] <= 0.0)
461 continue;
462 shown = 1;
463 if (new_line) {
464 if (line)
465 log_buf(out, "\n");
466 log_buf(out, " lat (%s) : ", msg);
467 new_line = 0;
468 line = 0;
469 }
470 if (line)
471 log_buf(out, ", ");
472 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
473 line++;
474 if (line == 5)
475 new_line = 1;
476 }
477
478 if (shown)
479 log_buf(out, "\n");
480
481 return shown;
482}
483
484static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
485{
486 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
487 "250=", "500=", "750=", "1000=", };
488
489 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
490}
491
492static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
493{
494 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
495 "250=", "500=", "750=", "1000=", "2000=",
496 ">=2000=", };
497
498 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
499}
500
501static void show_latencies(struct thread_stat *ts, struct buf_output *out)
502{
503 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
504 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
505
506 stat_calc_lat_u(ts, io_u_lat_u);
507 stat_calc_lat_m(ts, io_u_lat_m);
508
509 show_lat_u(io_u_lat_u, out);
510 show_lat_m(io_u_lat_m, out);
511}
512
513static int block_state_category(int block_state)
514{
515 switch (block_state) {
516 case BLOCK_STATE_UNINIT:
517 return 0;
518 case BLOCK_STATE_TRIMMED:
519 case BLOCK_STATE_WRITTEN:
520 return 1;
521 case BLOCK_STATE_WRITE_FAILURE:
522 case BLOCK_STATE_TRIM_FAILURE:
523 return 2;
524 default:
525 /* Silence compile warning on some BSDs and have a return */
526 assert(0);
527 return -1;
528 }
529}
530
531static int compare_block_infos(const void *bs1, const void *bs2)
532{
533 uint32_t block1 = *(uint32_t *)bs1;
534 uint32_t block2 = *(uint32_t *)bs2;
535 int state1 = BLOCK_INFO_STATE(block1);
536 int state2 = BLOCK_INFO_STATE(block2);
537 int bscat1 = block_state_category(state1);
538 int bscat2 = block_state_category(state2);
539 int cycles1 = BLOCK_INFO_TRIMS(block1);
540 int cycles2 = BLOCK_INFO_TRIMS(block2);
541
542 if (bscat1 < bscat2)
543 return -1;
544 if (bscat1 > bscat2)
545 return 1;
546
547 if (cycles1 < cycles2)
548 return -1;
549 if (cycles1 > cycles2)
550 return 1;
551
552 if (state1 < state2)
553 return -1;
554 if (state1 > state2)
555 return 1;
556
557 assert(block1 == block2);
558 return 0;
559}
560
561static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
562 fio_fp64_t *plist, unsigned int **percentiles,
563 unsigned int *types)
564{
565 int len = 0;
566 int i, nr_uninit;
567
568 qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
569
570 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
571 len++;
572
573 if (!len)
574 return 0;
575
576 /*
577 * Sort the percentile list. Note that it may already be sorted if
578 * we are using the default values, but since it's a short list this
579 * isn't a worry. Also note that this does not work for NaN values.
580 */
581 if (len > 1)
582 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
583
584 nr_uninit = 0;
585 /* Start only after the uninit entries end */
586 for (nr_uninit = 0;
587 nr_uninit < nr_block_infos
588 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
589 nr_uninit ++)
590 ;
591
592 if (nr_uninit == nr_block_infos)
593 return 0;
594
595 *percentiles = calloc(len, sizeof(**percentiles));
596
597 for (i = 0; i < len; i++) {
598 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
599 + nr_uninit;
600 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
601 }
602
603 memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
604 for (i = 0; i < nr_block_infos; i++)
605 types[BLOCK_INFO_STATE(block_infos[i])]++;
606
607 return len;
608}
609
610static const char *block_state_names[] = {
611 [BLOCK_STATE_UNINIT] = "unwritten",
612 [BLOCK_STATE_TRIMMED] = "trimmed",
613 [BLOCK_STATE_WRITTEN] = "written",
614 [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
615 [BLOCK_STATE_WRITE_FAILURE] = "write failure",
616};
617
618static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
619 fio_fp64_t *plist, struct buf_output *out)
620{
621 int len, pos, i;
622 unsigned int *percentiles = NULL;
623 unsigned int block_state_counts[BLOCK_STATE_COUNT];
624
625 len = calc_block_percentiles(nr_block_infos, block_infos, plist,
626 &percentiles, block_state_counts);
627
628 log_buf(out, " block lifetime percentiles :\n |");
629 pos = 0;
630 for (i = 0; i < len; i++) {
631 uint32_t block_info = percentiles[i];
632#define LINE_LENGTH 75
633 char str[LINE_LENGTH];
634 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
635 plist[i].u.f, block_info,
636 i == len - 1 ? '\n' : ',');
637 assert(strln < LINE_LENGTH);
638 if (pos + strln > LINE_LENGTH) {
639 pos = 0;
640 log_buf(out, "\n |");
641 }
642 log_buf(out, "%s", str);
643 pos += strln;
644#undef LINE_LENGTH
645 }
646 if (percentiles)
647 free(percentiles);
648
649 log_buf(out, " states :");
650 for (i = 0; i < BLOCK_STATE_COUNT; i++)
651 log_buf(out, " %s=%u%c",
652 block_state_names[i], block_state_counts[i],
653 i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
654}
655
656static void show_thread_status_normal(struct thread_stat *ts,
657 struct group_run_stats *rs,
658 struct buf_output *out)
659{
660 double usr_cpu, sys_cpu;
661 unsigned long runtime;
662 double io_u_dist[FIO_IO_U_MAP_NR];
663 time_t time_p;
664 char time_buf[32];
665
666 if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
667 return;
668
669 time(&time_p);
670 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
671
672 if (!ts->error) {
673 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
674 ts->name, ts->groupid, ts->members,
675 ts->error, (int) ts->pid, time_buf);
676 } else {
677 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
678 ts->name, ts->groupid, ts->members,
679 ts->error, ts->verror, (int) ts->pid,
680 time_buf);
681 }
682
683 if (strlen(ts->description))
684 log_buf(out, " Description : [%s]\n", ts->description);
685
686 if (ts->io_bytes[DDIR_READ])
687 show_ddir_status(rs, ts, DDIR_READ, out);
688 if (ts->io_bytes[DDIR_WRITE])
689 show_ddir_status(rs, ts, DDIR_WRITE, out);
690 if (ts->io_bytes[DDIR_TRIM])
691 show_ddir_status(rs, ts, DDIR_TRIM, out);
692
693 show_latencies(ts, out);
694
695 runtime = ts->total_run_time;
696 if (runtime) {
697 double runt = (double) runtime;
698
699 usr_cpu = (double) ts->usr_time * 100 / runt;
700 sys_cpu = (double) ts->sys_time * 100 / runt;
701 } else {
702 usr_cpu = 0;
703 sys_cpu = 0;
704 }
705
706 log_buf(out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
707 " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
708 (unsigned long long) ts->ctx,
709 (unsigned long long) ts->majf,
710 (unsigned long long) ts->minf);
711
712 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
713 log_buf(out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
714 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
715 io_u_dist[1], io_u_dist[2],
716 io_u_dist[3], io_u_dist[4],
717 io_u_dist[5], io_u_dist[6]);
718
719 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
720 log_buf(out, " submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
721 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
722 io_u_dist[1], io_u_dist[2],
723 io_u_dist[3], io_u_dist[4],
724 io_u_dist[5], io_u_dist[6]);
725 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
726 log_buf(out, " complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
727 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
728 io_u_dist[1], io_u_dist[2],
729 io_u_dist[3], io_u_dist[4],
730 io_u_dist[5], io_u_dist[6]);
731 log_buf(out, " issued : total=r=%llu/w=%llu/d=%llu,"
732 " short=r=%llu/w=%llu/d=%llu,"
733 " drop=r=%llu/w=%llu/d=%llu\n",
734 (unsigned long long) ts->total_io_u[0],
735 (unsigned long long) ts->total_io_u[1],
736 (unsigned long long) ts->total_io_u[2],
737 (unsigned long long) ts->short_io_u[0],
738 (unsigned long long) ts->short_io_u[1],
739 (unsigned long long) ts->short_io_u[2],
740 (unsigned long long) ts->drop_io_u[0],
741 (unsigned long long) ts->drop_io_u[1],
742 (unsigned long long) ts->drop_io_u[2]);
743 if (ts->continue_on_error) {
744 log_buf(out, " errors : total=%llu, first_error=%d/<%s>\n",
745 (unsigned long long)ts->total_err_count,
746 ts->first_error,
747 strerror(ts->first_error));
748 }
749 if (ts->latency_depth) {
750 log_buf(out, " latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
751 (unsigned long long)ts->latency_target,
752 (unsigned long long)ts->latency_window,
753 ts->latency_percentile.u.f,
754 ts->latency_depth);
755 }
756
757 if (ts->nr_block_infos)
758 show_block_infos(ts->nr_block_infos, ts->block_infos,
759 ts->percentile_list, out);
760}
761
762static void show_ddir_status_terse(struct thread_stat *ts,
763 struct group_run_stats *rs, int ddir,
764 struct buf_output *out)
765{
766 unsigned long min, max;
767 unsigned long long bw, iops;
768 unsigned int *ovals = NULL;
769 double mean, dev;
770 unsigned int len, minv, maxv;
771 int i;
772
773 assert(ddir_rw(ddir));
774
775 iops = bw = 0;
776 if (ts->runtime[ddir]) {
777 uint64_t runt = ts->runtime[ddir];
778
779 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
780 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
781 }
782
783 log_buf(out, ";%llu;%llu;%llu;%llu",
784 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
785 (unsigned long long) ts->runtime[ddir]);
786
787 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
788 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
789 else
790 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
791
792 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
793 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
794 else
795 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
796
797 if (ts->clat_percentiles) {
798 len = calc_clat_percentiles(ts->io_u_plat[ddir],
799 ts->clat_stat[ddir].samples,
800 ts->percentile_list, &ovals, &maxv,
801 &minv);
802 } else
803 len = 0;
804
805 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
806 if (i >= len) {
807 log_buf(out, ";0%%=0");
808 continue;
809 }
810 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
811 }
812
813 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
814 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
815 else
816 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
817
818 if (ovals)
819 free(ovals);
820
821 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
822 double p_of_agg = 100.0;
823
824 if (rs->agg[ddir]) {
825 p_of_agg = mean * 100 / (double) rs->agg[ddir];
826 if (p_of_agg > 100.0)
827 p_of_agg = 100.0;
828 }
829
830 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
831 } else
832 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
833}
834
835static void add_ddir_status_json(struct thread_stat *ts,
836 struct group_run_stats *rs, int ddir, struct json_object *parent)
837{
838 unsigned long min, max;
839 unsigned long long bw;
840 unsigned int *ovals = NULL;
841 double mean, dev, iops;
842 unsigned int len, minv, maxv;
843 int i;
844 const char *ddirname[] = {"read", "write", "trim"};
845 struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
846 char buf[120];
847 double p_of_agg = 100.0;
848
849 assert(ddir_rw(ddir));
850
851 if (ts->unified_rw_rep && ddir != DDIR_READ)
852 return;
853
854 dir_object = json_create_object();
855 json_object_add_value_object(parent,
856 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
857
858 bw = 0;
859 iops = 0.0;
860 if (ts->runtime[ddir]) {
861 uint64_t runt = ts->runtime[ddir];
862
863 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
864 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
865 }
866
867 json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
868 json_object_add_value_int(dir_object, "bw", bw);
869 json_object_add_value_float(dir_object, "iops", iops);
870 json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
871 json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
872 json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
873 json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
874
875 if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
876 min = max = 0;
877 mean = dev = 0.0;
878 }
879 tmp_object = json_create_object();
880 json_object_add_value_object(dir_object, "slat", tmp_object);
881 json_object_add_value_int(tmp_object, "min", min);
882 json_object_add_value_int(tmp_object, "max", max);
883 json_object_add_value_float(tmp_object, "mean", mean);
884 json_object_add_value_float(tmp_object, "stddev", dev);
885
886 if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
887 min = max = 0;
888 mean = dev = 0.0;
889 }
890 tmp_object = json_create_object();
891 json_object_add_value_object(dir_object, "clat", tmp_object);
892 json_object_add_value_int(tmp_object, "min", min);
893 json_object_add_value_int(tmp_object, "max", max);
894 json_object_add_value_float(tmp_object, "mean", mean);
895 json_object_add_value_float(tmp_object, "stddev", dev);
896
897 if (ts->clat_percentiles) {
898 len = calc_clat_percentiles(ts->io_u_plat[ddir],
899 ts->clat_stat[ddir].samples,
900 ts->percentile_list, &ovals, &maxv,
901 &minv);
902 } else
903 len = 0;
904
905 percentile_object = json_create_object();
906 json_object_add_value_object(tmp_object, "percentile", percentile_object);
907 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
908 if (i >= len) {
909 json_object_add_value_int(percentile_object, "0.00", 0);
910 continue;
911 }
912 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
913 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
914 }
915
916 if (output_format & FIO_OUTPUT_JSON_PLUS) {
917 clat_bins_object = json_create_object();
918 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
919 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
920 snprintf(buf, sizeof(buf), "%d", i);
921 json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
922 }
923 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_BITS", FIO_IO_U_PLAT_BITS);
924 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_VAL", FIO_IO_U_PLAT_VAL);
925 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_NR", FIO_IO_U_PLAT_NR);
926 }
927
928 if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
929 min = max = 0;
930 mean = dev = 0.0;
931 }
932 tmp_object = json_create_object();
933 json_object_add_value_object(dir_object, "lat", tmp_object);
934 json_object_add_value_int(tmp_object, "min", min);
935 json_object_add_value_int(tmp_object, "max", max);
936 json_object_add_value_float(tmp_object, "mean", mean);
937 json_object_add_value_float(tmp_object, "stddev", dev);
938 if (ovals)
939 free(ovals);
940
941 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
942 if (rs->agg[ddir]) {
943 p_of_agg = mean * 100 / (double) rs->agg[ddir];
944 if (p_of_agg > 100.0)
945 p_of_agg = 100.0;
946 }
947 } else {
948 min = max = 0;
949 p_of_agg = mean = dev = 0.0;
950 }
951 json_object_add_value_int(dir_object, "bw_min", min);
952 json_object_add_value_int(dir_object, "bw_max", max);
953 json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
954 json_object_add_value_float(dir_object, "bw_mean", mean);
955 json_object_add_value_float(dir_object, "bw_dev", dev);
956}
957
958static void show_thread_status_terse_v2(struct thread_stat *ts,
959 struct group_run_stats *rs,
960 struct buf_output *out)
961{
962 double io_u_dist[FIO_IO_U_MAP_NR];
963 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
964 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
965 double usr_cpu, sys_cpu;
966 int i;
967
968 /* General Info */
969 log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
970 /* Log Read Status */
971 show_ddir_status_terse(ts, rs, DDIR_READ, out);
972 /* Log Write Status */
973 show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
974 /* Log Trim Status */
975 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
976
977 /* CPU Usage */
978 if (ts->total_run_time) {
979 double runt = (double) ts->total_run_time;
980
981 usr_cpu = (double) ts->usr_time * 100 / runt;
982 sys_cpu = (double) ts->sys_time * 100 / runt;
983 } else {
984 usr_cpu = 0;
985 sys_cpu = 0;
986 }
987
988 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
989 (unsigned long long) ts->ctx,
990 (unsigned long long) ts->majf,
991 (unsigned long long) ts->minf);
992
993 /* Calc % distribution of IO depths, usecond, msecond latency */
994 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
995 stat_calc_lat_u(ts, io_u_lat_u);
996 stat_calc_lat_m(ts, io_u_lat_m);
997
998 /* Only show fixed 7 I/O depth levels*/
999 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1000 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1001 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1002
1003 /* Microsecond latency */
1004 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1005 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1006 /* Millisecond latency */
1007 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1008 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1009 /* Additional output if continue_on_error set - default off*/
1010 if (ts->continue_on_error)
1011 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1012 log_buf(out, "\n");
1013
1014 /* Additional output if description is set */
1015 if (strlen(ts->description))
1016 log_buf(out, ";%s", ts->description);
1017
1018 log_buf(out, "\n");
1019}
1020
1021static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1022 struct group_run_stats *rs, int ver,
1023 struct buf_output *out)
1024{
1025 double io_u_dist[FIO_IO_U_MAP_NR];
1026 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1027 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1028 double usr_cpu, sys_cpu;
1029 int i;
1030
1031 /* General Info */
1032 log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1033 ts->name, ts->groupid, ts->error);
1034 /* Log Read Status */
1035 show_ddir_status_terse(ts, rs, DDIR_READ, out);
1036 /* Log Write Status */
1037 show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1038 /* Log Trim Status */
1039 if (ver == 4)
1040 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1041
1042 /* CPU Usage */
1043 if (ts->total_run_time) {
1044 double runt = (double) ts->total_run_time;
1045
1046 usr_cpu = (double) ts->usr_time * 100 / runt;
1047 sys_cpu = (double) ts->sys_time * 100 / runt;
1048 } else {
1049 usr_cpu = 0;
1050 sys_cpu = 0;
1051 }
1052
1053 log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1054 (unsigned long long) ts->ctx,
1055 (unsigned long long) ts->majf,
1056 (unsigned long long) ts->minf);
1057
1058 /* Calc % distribution of IO depths, usecond, msecond latency */
1059 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1060 stat_calc_lat_u(ts, io_u_lat_u);
1061 stat_calc_lat_m(ts, io_u_lat_m);
1062
1063 /* Only show fixed 7 I/O depth levels*/
1064 log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1065 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1066 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1067
1068 /* Microsecond latency */
1069 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1070 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1071 /* Millisecond latency */
1072 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1073 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1074
1075 /* disk util stats, if any */
1076 show_disk_util(1, NULL, out);
1077
1078 /* Additional output if continue_on_error set - default off*/
1079 if (ts->continue_on_error)
1080 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1081
1082 /* Additional output if description is set */
1083 if (strlen(ts->description))
1084 log_buf(out, ";%s", ts->description);
1085
1086 log_buf(out, "\n");
1087}
1088
1089static struct json_object *show_thread_status_json(struct thread_stat *ts,
1090 struct group_run_stats *rs)
1091{
1092 struct json_object *root, *tmp;
1093 struct jobs_eta *je;
1094 double io_u_dist[FIO_IO_U_MAP_NR];
1095 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1096 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1097 double usr_cpu, sys_cpu;
1098 int i;
1099 size_t size;
1100
1101 root = json_create_object();
1102 json_object_add_value_string(root, "jobname", ts->name);
1103 json_object_add_value_int(root, "groupid", ts->groupid);
1104 json_object_add_value_int(root, "error", ts->error);
1105
1106 /* ETA Info */
1107 je = get_jobs_eta(1, &size);
1108 if (je) {
1109 json_object_add_value_int(root, "eta", je->eta_sec);
1110 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1111 }
1112
1113 add_ddir_status_json(ts, rs, DDIR_READ, root);
1114 add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1115 add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1116
1117 /* CPU Usage */
1118 if (ts->total_run_time) {
1119 double runt = (double) ts->total_run_time;
1120
1121 usr_cpu = (double) ts->usr_time * 100 / runt;
1122 sys_cpu = (double) ts->sys_time * 100 / runt;
1123 } else {
1124 usr_cpu = 0;
1125 sys_cpu = 0;
1126 }
1127 json_object_add_value_float(root, "usr_cpu", usr_cpu);
1128 json_object_add_value_float(root, "sys_cpu", sys_cpu);
1129 json_object_add_value_int(root, "ctx", ts->ctx);
1130 json_object_add_value_int(root, "majf", ts->majf);
1131 json_object_add_value_int(root, "minf", ts->minf);
1132
1133
1134 /* Calc % distribution of IO depths, usecond, msecond latency */
1135 stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1136 stat_calc_lat_u(ts, io_u_lat_u);
1137 stat_calc_lat_m(ts, io_u_lat_m);
1138
1139 tmp = json_create_object();
1140 json_object_add_value_object(root, "iodepth_level", tmp);
1141 /* Only show fixed 7 I/O depth levels*/
1142 for (i = 0; i < 7; i++) {
1143 char name[20];
1144 if (i < 6)
1145 snprintf(name, 20, "%d", 1 << i);
1146 else
1147 snprintf(name, 20, ">=%d", 1 << i);
1148 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1149 }
1150
1151 tmp = json_create_object();
1152 json_object_add_value_object(root, "latency_us", tmp);
1153 /* Microsecond latency */
1154 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1155 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1156 "250", "500", "750", "1000", };
1157 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1158 }
1159 /* Millisecond latency */
1160 tmp = json_create_object();
1161 json_object_add_value_object(root, "latency_ms", tmp);
1162 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1163 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1164 "250", "500", "750", "1000", "2000",
1165 ">=2000", };
1166 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1167 }
1168
1169 /* Additional output if continue_on_error set - default off*/
1170 if (ts->continue_on_error) {
1171 json_object_add_value_int(root, "total_err", ts->total_err_count);
1172 json_object_add_value_int(root, "first_error", ts->first_error);
1173 }
1174
1175 if (ts->latency_depth) {
1176 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1177 json_object_add_value_int(root, "latency_target", ts->latency_target);
1178 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1179 json_object_add_value_int(root, "latency_window", ts->latency_window);
1180 }
1181
1182 /* Additional output if description is set */
1183 if (strlen(ts->description))
1184 json_object_add_value_string(root, "desc", ts->description);
1185
1186 if (ts->nr_block_infos) {
1187 /* Block error histogram and types */
1188 int len;
1189 unsigned int *percentiles = NULL;
1190 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1191
1192 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1193 ts->percentile_list,
1194 &percentiles, block_state_counts);
1195
1196 if (len) {
1197 struct json_object *block, *percentile_object, *states;
1198 int state;
1199 block = json_create_object();
1200 json_object_add_value_object(root, "block", block);
1201
1202 percentile_object = json_create_object();
1203 json_object_add_value_object(block, "percentiles",
1204 percentile_object);
1205 for (i = 0; i < len; i++) {
1206 char buf[20];
1207 snprintf(buf, sizeof(buf), "%f",
1208 ts->percentile_list[i].u.f);
1209 json_object_add_value_int(percentile_object,
1210 (const char *)buf,
1211 percentiles[i]);
1212 }
1213
1214 states = json_create_object();
1215 json_object_add_value_object(block, "states", states);
1216 for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1217 json_object_add_value_int(states,
1218 block_state_names[state],
1219 block_state_counts[state]);
1220 }
1221 free(percentiles);
1222 }
1223 }
1224
1225 return root;
1226}
1227
1228static void show_thread_status_terse(struct thread_stat *ts,
1229 struct group_run_stats *rs,
1230 struct buf_output *out)
1231{
1232 if (terse_version == 2)
1233 show_thread_status_terse_v2(ts, rs, out);
1234 else if (terse_version == 3 || terse_version == 4)
1235 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1236 else
1237 log_err("fio: bad terse version!? %d\n", terse_version);
1238}
1239
1240struct json_object *show_thread_status(struct thread_stat *ts,
1241 struct group_run_stats *rs,
1242 struct buf_output *out)
1243{
1244 struct json_object *ret = NULL;
1245
1246 if (output_format & FIO_OUTPUT_TERSE)
1247 show_thread_status_terse(ts, rs, out);
1248 if (output_format & FIO_OUTPUT_JSON)
1249 ret = show_thread_status_json(ts, rs);
1250 if (output_format & FIO_OUTPUT_NORMAL)
1251 show_thread_status_normal(ts, rs, out);
1252
1253 return ret;
1254}
1255
1256static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1257{
1258 double mean, S;
1259
1260 if (src->samples == 0)
1261 return;
1262
1263 dst->min_val = min(dst->min_val, src->min_val);
1264 dst->max_val = max(dst->max_val, src->max_val);
1265
1266 /*
1267 * Compute new mean and S after the merge
1268 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1269 * #Parallel_algorithm>
1270 */
1271 if (first) {
1272 mean = src->mean.u.f;
1273 S = src->S.u.f;
1274 } else {
1275 double delta = src->mean.u.f - dst->mean.u.f;
1276
1277 mean = ((src->mean.u.f * src->samples) +
1278 (dst->mean.u.f * dst->samples)) /
1279 (dst->samples + src->samples);
1280
1281 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1282 (dst->samples * src->samples) /
1283 (dst->samples + src->samples);
1284 }
1285
1286 dst->samples += src->samples;
1287 dst->mean.u.f = mean;
1288 dst->S.u.f = S;
1289}
1290
1291void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1292{
1293 int i;
1294
1295 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1296 if (dst->max_run[i] < src->max_run[i])
1297 dst->max_run[i] = src->max_run[i];
1298 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1299 dst->min_run[i] = src->min_run[i];
1300 if (dst->max_bw[i] < src->max_bw[i])
1301 dst->max_bw[i] = src->max_bw[i];
1302 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1303 dst->min_bw[i] = src->min_bw[i];
1304
1305 dst->io_kb[i] += src->io_kb[i];
1306 dst->agg[i] += src->agg[i];
1307 }
1308
1309 if (!dst->kb_base)
1310 dst->kb_base = src->kb_base;
1311 if (!dst->unit_base)
1312 dst->unit_base = src->unit_base;
1313}
1314
1315void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1316 bool first)
1317{
1318 int l, k;
1319
1320 for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1321 if (!dst->unified_rw_rep) {
1322 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1323 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1324 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1325 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1326
1327 dst->io_bytes[l] += src->io_bytes[l];
1328
1329 if (dst->runtime[l] < src->runtime[l])
1330 dst->runtime[l] = src->runtime[l];
1331 } else {
1332 sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1333 sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1334 sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1335 sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1336
1337 dst->io_bytes[0] += src->io_bytes[l];
1338
1339 if (dst->runtime[0] < src->runtime[l])
1340 dst->runtime[0] = src->runtime[l];
1341
1342 /*
1343 * We're summing to the same destination, so override
1344 * 'first' after the first iteration of the loop
1345 */
1346 first = false;
1347 }
1348 }
1349
1350 dst->usr_time += src->usr_time;
1351 dst->sys_time += src->sys_time;
1352 dst->ctx += src->ctx;
1353 dst->majf += src->majf;
1354 dst->minf += src->minf;
1355
1356 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1357 dst->io_u_map[k] += src->io_u_map[k];
1358 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1359 dst->io_u_submit[k] += src->io_u_submit[k];
1360 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1361 dst->io_u_complete[k] += src->io_u_complete[k];
1362 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1363 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1364 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1365 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1366
1367 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1368 if (!dst->unified_rw_rep) {
1369 dst->total_io_u[k] += src->total_io_u[k];
1370 dst->short_io_u[k] += src->short_io_u[k];
1371 dst->drop_io_u[k] += src->drop_io_u[k];
1372 } else {
1373 dst->total_io_u[0] += src->total_io_u[k];
1374 dst->short_io_u[0] += src->short_io_u[k];
1375 dst->drop_io_u[0] += src->drop_io_u[k];
1376 }
1377 }
1378
1379 for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1380 int m;
1381
1382 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1383 if (!dst->unified_rw_rep)
1384 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1385 else
1386 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1387 }
1388 }
1389
1390 dst->total_run_time += src->total_run_time;
1391 dst->total_submit += src->total_submit;
1392 dst->total_complete += src->total_complete;
1393}
1394
1395void init_group_run_stat(struct group_run_stats *gs)
1396{
1397 int i;
1398 memset(gs, 0, sizeof(*gs));
1399
1400 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1401 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1402}
1403
1404void init_thread_stat(struct thread_stat *ts)
1405{
1406 int j;
1407
1408 memset(ts, 0, sizeof(*ts));
1409
1410 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1411 ts->lat_stat[j].min_val = -1UL;
1412 ts->clat_stat[j].min_val = -1UL;
1413 ts->slat_stat[j].min_val = -1UL;
1414 ts->bw_stat[j].min_val = -1UL;
1415 }
1416 ts->groupid = -1;
1417}
1418
1419void __show_run_stats(void)
1420{
1421 struct group_run_stats *runstats, *rs;
1422 struct thread_data *td;
1423 struct thread_stat *threadstats, *ts;
1424 int i, j, k, nr_ts, last_ts, idx;
1425 int kb_base_warned = 0;
1426 int unit_base_warned = 0;
1427 struct json_object *root = NULL;
1428 struct json_array *array = NULL;
1429 struct buf_output output[FIO_OUTPUT_NR];
1430
1431 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1432
1433 for (i = 0; i < groupid + 1; i++)
1434 init_group_run_stat(&runstats[i]);
1435
1436 /*
1437 * find out how many threads stats we need. if group reporting isn't
1438 * enabled, it's one-per-td.
1439 */
1440 nr_ts = 0;
1441 last_ts = -1;
1442 for_each_td(td, i) {
1443 if (!td->o.group_reporting) {
1444 nr_ts++;
1445 continue;
1446 }
1447 if (last_ts == td->groupid)
1448 continue;
1449
1450 last_ts = td->groupid;
1451 nr_ts++;
1452 }
1453
1454 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1455
1456 for (i = 0; i < nr_ts; i++)
1457 init_thread_stat(&threadstats[i]);
1458
1459 j = 0;
1460 last_ts = -1;
1461 idx = 0;
1462 for_each_td(td, i) {
1463 if (idx && (!td->o.group_reporting ||
1464 (td->o.group_reporting && last_ts != td->groupid))) {
1465 idx = 0;
1466 j++;
1467 }
1468
1469 last_ts = td->groupid;
1470
1471 ts = &threadstats[j];
1472
1473 ts->clat_percentiles = td->o.clat_percentiles;
1474 ts->percentile_precision = td->o.percentile_precision;
1475 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1476
1477 idx++;
1478 ts->members++;
1479
1480 if (ts->groupid == -1) {
1481 /*
1482 * These are per-group shared already
1483 */
1484 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1485 if (td->o.description)
1486 strncpy(ts->description, td->o.description,
1487 FIO_JOBDESC_SIZE - 1);
1488 else
1489 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1490
1491 /*
1492 * If multiple entries in this group, this is
1493 * the first member.
1494 */
1495 ts->thread_number = td->thread_number;
1496 ts->groupid = td->groupid;
1497
1498 /*
1499 * first pid in group, not very useful...
1500 */
1501 ts->pid = td->pid;
1502
1503 ts->kb_base = td->o.kb_base;
1504 ts->unit_base = td->o.unit_base;
1505 ts->unified_rw_rep = td->o.unified_rw_rep;
1506 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1507 log_info("fio: kb_base differs for jobs in group, using"
1508 " %u as the base\n", ts->kb_base);
1509 kb_base_warned = 1;
1510 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1511 log_info("fio: unit_base differs for jobs in group, using"
1512 " %u as the base\n", ts->unit_base);
1513 unit_base_warned = 1;
1514 }
1515
1516 ts->continue_on_error = td->o.continue_on_error;
1517 ts->total_err_count += td->total_err_count;
1518 ts->first_error = td->first_error;
1519 if (!ts->error) {
1520 if (!td->error && td->o.continue_on_error &&
1521 td->first_error) {
1522 ts->error = td->first_error;
1523 ts->verror[sizeof(ts->verror) - 1] = '\0';
1524 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1525 } else if (td->error) {
1526 ts->error = td->error;
1527 ts->verror[sizeof(ts->verror) - 1] = '\0';
1528 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1529 }
1530 }
1531
1532 ts->latency_depth = td->latency_qd;
1533 ts->latency_target = td->o.latency_target;
1534 ts->latency_percentile = td->o.latency_percentile;
1535 ts->latency_window = td->o.latency_window;
1536
1537 ts->nr_block_infos = td->ts.nr_block_infos;
1538 for (k = 0; k < ts->nr_block_infos; k++)
1539 ts->block_infos[k] = td->ts.block_infos[k];
1540
1541 sum_thread_stats(ts, &td->ts, idx == 1);
1542 }
1543
1544 for (i = 0; i < nr_ts; i++) {
1545 unsigned long long bw;
1546
1547 ts = &threadstats[i];
1548 rs = &runstats[ts->groupid];
1549 rs->kb_base = ts->kb_base;
1550 rs->unit_base = ts->unit_base;
1551 rs->unified_rw_rep += ts->unified_rw_rep;
1552
1553 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1554 if (!ts->runtime[j])
1555 continue;
1556 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1557 rs->min_run[j] = ts->runtime[j];
1558 if (ts->runtime[j] > rs->max_run[j])
1559 rs->max_run[j] = ts->runtime[j];
1560
1561 bw = 0;
1562 if (ts->runtime[j]) {
1563 unsigned long runt = ts->runtime[j];
1564 unsigned long long kb;
1565
1566 kb = ts->io_bytes[j] / rs->kb_base;
1567 bw = kb * 1000 / runt;
1568 }
1569 if (bw < rs->min_bw[j])
1570 rs->min_bw[j] = bw;
1571 if (bw > rs->max_bw[j])
1572 rs->max_bw[j] = bw;
1573
1574 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1575 }
1576 }
1577
1578 for (i = 0; i < groupid + 1; i++) {
1579 int ddir;
1580
1581 rs = &runstats[i];
1582
1583 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1584 if (rs->max_run[ddir])
1585 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1586 rs->max_run[ddir];
1587 }
1588 }
1589
1590 for (i = 0; i < FIO_OUTPUT_NR; i++)
1591 buf_output_init(&output[i]);
1592
1593 /*
1594 * don't overwrite last signal output
1595 */
1596 if (output_format & FIO_OUTPUT_NORMAL)
1597 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1598 if (output_format & FIO_OUTPUT_JSON) {
1599 char time_buf[32];
1600 time_t time_p;
1601
1602 time(&time_p);
1603 os_ctime_r((const time_t *) &time_p, time_buf,
1604 sizeof(time_buf));
1605 time_buf[strlen(time_buf) - 1] = '\0';
1606
1607 root = json_create_object();
1608 json_object_add_value_string(root, "fio version", fio_version_string);
1609 json_object_add_value_int(root, "timestamp", time_p);
1610 json_object_add_value_string(root, "time", time_buf);
1611 array = json_create_array();
1612 json_object_add_value_array(root, "jobs", array);
1613 }
1614
1615 for (i = 0; i < nr_ts; i++) {
1616 ts = &threadstats[i];
1617 rs = &runstats[ts->groupid];
1618
1619 if (is_backend)
1620 fio_server_send_ts(ts, rs);
1621 else {
1622 if (output_format & FIO_OUTPUT_TERSE)
1623 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1624 if (output_format & FIO_OUTPUT_JSON) {
1625 struct json_object *tmp = show_thread_status_json(ts, rs);
1626 json_array_add_value_object(array, tmp);
1627 }
1628 if (output_format & FIO_OUTPUT_NORMAL)
1629 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1630 }
1631 }
1632 if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1633 /* disk util stats, if any */
1634 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1635
1636 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1637
1638 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1639 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1640 json_free_object(root);
1641 }
1642
1643 for (i = 0; i < groupid + 1; i++) {
1644 rs = &runstats[i];
1645
1646 rs->groupid = i;
1647 if (is_backend)
1648 fio_server_send_gs(rs);
1649 else if (output_format & FIO_OUTPUT_NORMAL)
1650 show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1651 }
1652
1653 if (is_backend)
1654 fio_server_send_du();
1655 else if (output_format & FIO_OUTPUT_NORMAL) {
1656 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1657 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1658 }
1659
1660 for (i = 0; i < FIO_OUTPUT_NR; i++) {
1661 buf_output_flush(&output[i]);
1662 buf_output_free(&output[i]);
1663 }
1664
1665 log_info_flush();
1666 free(runstats);
1667 free(threadstats);
1668}
1669
1670void show_run_stats(void)
1671{
1672 fio_mutex_down(stat_mutex);
1673 __show_run_stats();
1674 fio_mutex_up(stat_mutex);
1675}
1676
1677void __show_running_run_stats(void)
1678{
1679 struct thread_data *td;
1680 unsigned long long *rt;
1681 struct timeval tv;
1682 int i;
1683
1684 fio_mutex_down(stat_mutex);
1685
1686 rt = malloc(thread_number * sizeof(unsigned long long));
1687 fio_gettime(&tv, NULL);
1688
1689 for_each_td(td, i) {
1690 rt[i] = mtime_since(&td->start, &tv);
1691 if (td_read(td) && td->io_bytes[DDIR_READ])
1692 td->ts.runtime[DDIR_READ] += rt[i];
1693 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1694 td->ts.runtime[DDIR_WRITE] += rt[i];
1695 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1696 td->ts.runtime[DDIR_TRIM] += rt[i];
1697
1698 td->update_rusage = 1;
1699 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1700 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1701 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1702 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1703 }
1704
1705 for_each_td(td, i) {
1706 if (td->runstate >= TD_EXITED)
1707 continue;
1708 if (td->rusage_sem) {
1709 td->update_rusage = 1;
1710 fio_mutex_down(td->rusage_sem);
1711 }
1712 td->update_rusage = 0;
1713 }
1714
1715 __show_run_stats();
1716
1717 for_each_td(td, i) {
1718 if (td_read(td) && td->io_bytes[DDIR_READ])
1719 td->ts.runtime[DDIR_READ] -= rt[i];
1720 if (td_write(td) && td->io_bytes[DDIR_WRITE])
1721 td->ts.runtime[DDIR_WRITE] -= rt[i];
1722 if (td_trim(td) && td->io_bytes[DDIR_TRIM])
1723 td->ts.runtime[DDIR_TRIM] -= rt[i];
1724 }
1725
1726 free(rt);
1727 fio_mutex_up(stat_mutex);
1728}
1729
1730static int status_interval_init;
1731static struct timeval status_time;
1732static int status_file_disabled;
1733
1734#define FIO_STATUS_FILE "fio-dump-status"
1735
1736static int check_status_file(void)
1737{
1738 struct stat sb;
1739 const char *temp_dir;
1740 char fio_status_file_path[PATH_MAX];
1741
1742 if (status_file_disabled)
1743 return 0;
1744
1745 temp_dir = getenv("TMPDIR");
1746 if (temp_dir == NULL) {
1747 temp_dir = getenv("TEMP");
1748 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1749 temp_dir = NULL;
1750 }
1751 if (temp_dir == NULL)
1752 temp_dir = "/tmp";
1753
1754 snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1755
1756 if (stat(fio_status_file_path, &sb))
1757 return 0;
1758
1759 if (unlink(fio_status_file_path) < 0) {
1760 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1761 strerror(errno));
1762 log_err("fio: disabling status file updates\n");
1763 status_file_disabled = 1;
1764 }
1765
1766 return 1;
1767}
1768
1769void check_for_running_stats(void)
1770{
1771 if (status_interval) {
1772 if (!status_interval_init) {
1773 fio_gettime(&status_time, NULL);
1774 status_interval_init = 1;
1775 } else if (mtime_since_now(&status_time) >= status_interval) {
1776 show_running_run_stats();
1777 fio_gettime(&status_time, NULL);
1778 return;
1779 }
1780 }
1781 if (check_status_file()) {
1782 show_running_run_stats();
1783 return;
1784 }
1785}
1786
1787static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1788{
1789 double val = data;
1790 double delta;
1791
1792 if (data > is->max_val)
1793 is->max_val = data;
1794 if (data < is->min_val)
1795 is->min_val = data;
1796
1797 delta = val - is->mean.u.f;
1798 if (delta) {
1799 is->mean.u.f += delta / (is->samples + 1.0);
1800 is->S.u.f += delta * (val - is->mean.u.f);
1801 }
1802
1803 is->samples++;
1804}
1805
1806static void __add_log_sample(struct io_log *iolog, unsigned long val,
1807 enum fio_ddir ddir, unsigned int bs,
1808 unsigned long t, uint64_t offset)
1809{
1810 uint64_t nr_samples = iolog->nr_samples;
1811 struct io_sample *s;
1812
1813 if (iolog->disabled)
1814 return;
1815
1816 if (!iolog->nr_samples)
1817 iolog->avg_last = t;
1818
1819 if (iolog->nr_samples == iolog->max_samples) {
1820 size_t new_size;
1821 void *new_log;
1822
1823 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1824
1825 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1826 if (iolog_flush(iolog, 0)) {
1827 log_err("fio: failed flushing iolog! Will stop logging.\n");
1828 iolog->disabled = 1;
1829 return;
1830 }
1831 nr_samples = iolog->nr_samples;
1832 } else {
1833 new_log = realloc(iolog->log, new_size);
1834 if (!new_log) {
1835 log_err("fio: failed extending iolog! Will stop logging.\n");
1836 iolog->disabled = 1;
1837 return;
1838 }
1839 iolog->log = new_log;
1840 iolog->max_samples <<= 1;
1841 }
1842 }
1843
1844 s = get_sample(iolog, nr_samples);
1845
1846 s->val = val;
1847 s->time = t;
1848 io_sample_set_ddir(iolog, s, ddir);
1849 s->bs = bs;
1850
1851 if (iolog->log_offset) {
1852 struct io_sample_offset *so = (void *) s;
1853
1854 so->offset = offset;
1855 }
1856
1857 iolog->nr_samples++;
1858}
1859
1860static inline void reset_io_stat(struct io_stat *ios)
1861{
1862 ios->max_val = ios->min_val = ios->samples = 0;
1863 ios->mean.u.f = ios->S.u.f = 0;
1864}
1865
1866void reset_io_stats(struct thread_data *td)
1867{
1868 struct thread_stat *ts = &td->ts;
1869 int i, j;
1870
1871 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1872 reset_io_stat(&ts->clat_stat[i]);
1873 reset_io_stat(&ts->slat_stat[i]);
1874 reset_io_stat(&ts->lat_stat[i]);
1875 reset_io_stat(&ts->bw_stat[i]);
1876 reset_io_stat(&ts->iops_stat[i]);
1877
1878 ts->io_bytes[i] = 0;
1879 ts->runtime[i] = 0;
1880
1881 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1882 ts->io_u_plat[i][j] = 0;
1883 }
1884
1885 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1886 ts->io_u_map[i] = 0;
1887 ts->io_u_submit[i] = 0;
1888 ts->io_u_complete[i] = 0;
1889 ts->io_u_lat_u[i] = 0;
1890 ts->io_u_lat_m[i] = 0;
1891 ts->total_submit = 0;
1892 ts->total_complete = 0;
1893 }
1894
1895 for (i = 0; i < 3; i++) {
1896 ts->total_io_u[i] = 0;
1897 ts->short_io_u[i] = 0;
1898 ts->drop_io_u[i] = 0;
1899 }
1900}
1901
1902static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed)
1903{
1904 /*
1905 * Note an entry in the log. Use the mean from the logged samples,
1906 * making sure to properly round up. Only write a log entry if we
1907 * had actual samples done.
1908 */
1909 if (iolog->avg_window[DDIR_READ].samples) {
1910 unsigned long mr;
1911
1912 mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
1913 __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0);
1914 }
1915 if (iolog->avg_window[DDIR_WRITE].samples) {
1916 unsigned long mw;
1917
1918 mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
1919 __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0);
1920 }
1921 if (iolog->avg_window[DDIR_TRIM].samples) {
1922 unsigned long mw;
1923
1924 mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
1925 __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0);
1926 }
1927
1928 reset_io_stat(&iolog->avg_window[DDIR_READ]);
1929 reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
1930 reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
1931}
1932
1933static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1934 unsigned long val, enum fio_ddir ddir,
1935 unsigned int bs, uint64_t offset)
1936{
1937 unsigned long elapsed, this_window;
1938
1939 if (!ddir_rw(ddir))
1940 return;
1941
1942 elapsed = mtime_since_now(&td->epoch);
1943
1944 /*
1945 * If no time averaging, just add the log sample.
1946 */
1947 if (!iolog->avg_msec) {
1948 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1949 return;
1950 }
1951
1952 /*
1953 * Add the sample. If the time period has passed, then
1954 * add that entry to the log and clear.
1955 */
1956 add_stat_sample(&iolog->avg_window[ddir], val);
1957
1958 /*
1959 * If period hasn't passed, adding the above sample is all we
1960 * need to do.
1961 */
1962 this_window = elapsed - iolog->avg_last;
1963 if (this_window < iolog->avg_msec)
1964 return;
1965
1966 _add_stat_to_log(iolog, elapsed);
1967
1968 iolog->avg_last = elapsed;
1969}
1970
1971void finalize_logs(struct thread_data *td)
1972{
1973 unsigned long elapsed;
1974
1975 elapsed = mtime_since_now(&td->epoch);
1976
1977 if (td->clat_log)
1978 _add_stat_to_log(td->clat_log, elapsed);
1979 if (td->slat_log)
1980 _add_stat_to_log(td->slat_log, elapsed);
1981 if (td->lat_log)
1982 _add_stat_to_log(td->lat_log, elapsed);
1983 if (td->bw_log)
1984 _add_stat_to_log(td->bw_log, elapsed);
1985 if (td->iops_log)
1986 _add_stat_to_log(td->iops_log, elapsed);
1987}
1988
1989void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
1990{
1991 struct io_log *iolog;
1992
1993 if (!ddir_rw(ddir))
1994 return;
1995
1996 iolog = agg_io_log[ddir];
1997 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
1998}
1999
2000static void add_clat_percentile_sample(struct thread_stat *ts,
2001 unsigned long usec, enum fio_ddir ddir)
2002{
2003 unsigned int idx = plat_val_to_idx(usec);
2004 assert(idx < FIO_IO_U_PLAT_NR);
2005
2006 ts->io_u_plat[ddir][idx]++;
2007}
2008
2009void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2010 unsigned long usec, unsigned int bs, uint64_t offset)
2011{
2012 struct thread_stat *ts = &td->ts;
2013
2014 if (!ddir_rw(ddir))
2015 return;
2016
2017 td_io_u_lock(td);
2018
2019 add_stat_sample(&ts->clat_stat[ddir], usec);
2020
2021 if (td->clat_log)
2022 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
2023
2024 if (ts->clat_percentiles)
2025 add_clat_percentile_sample(ts, usec, ddir);
2026
2027 td_io_u_unlock(td);
2028}
2029
2030void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2031 unsigned long usec, unsigned int bs, uint64_t offset)
2032{
2033 struct thread_stat *ts = &td->ts;
2034
2035 if (!ddir_rw(ddir))
2036 return;
2037
2038 td_io_u_lock(td);
2039
2040 add_stat_sample(&ts->slat_stat[ddir], usec);
2041
2042 if (td->slat_log)
2043 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
2044
2045 td_io_u_unlock(td);
2046}
2047
2048void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2049 unsigned long usec, unsigned int bs, uint64_t offset)
2050{
2051 struct thread_stat *ts = &td->ts;
2052
2053 if (!ddir_rw(ddir))
2054 return;
2055
2056 td_io_u_lock(td);
2057
2058 add_stat_sample(&ts->lat_stat[ddir], usec);
2059
2060 if (td->lat_log)
2061 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2062
2063 td_io_u_unlock(td);
2064}
2065
2066void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2067 struct timeval *t)
2068{
2069 struct thread_stat *ts = &td->ts;
2070 unsigned long spent, rate;
2071
2072 if (!ddir_rw(ddir))
2073 return;
2074
2075 spent = mtime_since(&td->bw_sample_time, t);
2076 if (spent < td->o.bw_avg_time)
2077 return;
2078
2079 td_io_u_lock(td);
2080
2081 /*
2082 * Compute both read and write rates for the interval.
2083 */
2084 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2085 uint64_t delta;
2086
2087 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2088 if (!delta)
2089 continue; /* No entries for interval */
2090
2091 if (spent)
2092 rate = delta * 1000 / spent / 1024;
2093 else
2094 rate = 0;
2095
2096 add_stat_sample(&ts->bw_stat[ddir], rate);
2097
2098 if (td->bw_log)
2099 add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2100
2101 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2102 }
2103
2104 fio_gettime(&td->bw_sample_time, NULL);
2105 td_io_u_unlock(td);
2106}
2107
2108void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2109 struct timeval *t)
2110{
2111 struct thread_stat *ts = &td->ts;
2112 unsigned long spent, iops;
2113
2114 if (!ddir_rw(ddir))
2115 return;
2116
2117 spent = mtime_since(&td->iops_sample_time, t);
2118 if (spent < td->o.iops_avg_time)
2119 return;
2120
2121 td_io_u_lock(td);
2122
2123 /*
2124 * Compute both read and write rates for the interval.
2125 */
2126 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2127 uint64_t delta;
2128
2129 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2130 if (!delta)
2131 continue; /* No entries for interval */
2132
2133 if (spent)
2134 iops = (delta * 1000) / spent;
2135 else
2136 iops = 0;
2137
2138 add_stat_sample(&ts->iops_stat[ddir], iops);
2139
2140 if (td->iops_log)
2141 add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2142
2143 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2144 }
2145
2146 fio_gettime(&td->iops_sample_time, NULL);
2147 td_io_u_unlock(td);
2148}
2149
2150void stat_init(void)
2151{
2152 stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2153}
2154
2155void stat_exit(void)
2156{
2157 /*
2158 * When we have the mutex, we know out-of-band access to it
2159 * have ended.
2160 */
2161 fio_mutex_down(stat_mutex);
2162 fio_mutex_remove(stat_mutex);
2163}
2164
2165/*
2166 * Called from signal handler. Wake up status thread.
2167 */
2168void show_running_run_stats(void)
2169{
2170 helper_do_stat = 1;
2171 pthread_cond_signal(&helper_cond);
2172}
2173
2174uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2175{
2176 /* Ignore io_u's which span multiple blocks--they will just get
2177 * inaccurate counts. */
2178 int idx = (io_u->offset - io_u->file->file_offset)
2179 / td->o.bs[DDIR_TRIM];
2180 uint32_t *info = &td->ts.block_infos[idx];
2181 assert(idx < td->ts.nr_block_infos);
2182 return info;
2183}
fio - Flexible IO Tester