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