Add completion latency percentiles to terse output format
[fio.git] / stat.c
CommitLineData
3c39a379
JA
1#include <stdio.h>
2#include <string.h>
3#include <sys/time.h>
4#include <sys/types.h>
5c4e1dbc 5#include <sys/stat.h>
3c39a379
JA
6#include <dirent.h>
7#include <libgen.h>
8#include <math.h>
9
10#include "fio.h"
7c9b1bce 11#include "diskutil.h"
802ad4a8 12#include "ieee754.h"
3c39a379 13
3c39a379
JA
14void update_rusage_stat(struct thread_data *td)
15{
756867bd 16 struct thread_stat *ts = &td->ts;
3c39a379 17
c8aaba19 18 getrusage(RUSAGE_SELF, &td->ru_end);
079ad09b 19
c8aaba19
JA
20 ts->usr_time += mtime_since(&td->ru_start.ru_utime,
21 &td->ru_end.ru_utime);
22 ts->sys_time += mtime_since(&td->ru_start.ru_stime,
23 &td->ru_end.ru_stime);
24 ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
25 - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
26 ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
27 ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
5ec10eaa 28
c8aaba19 29 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
3c39a379
JA
30}
31
83349190
YH
32/*
33 * Given a latency, return the index of the corresponding bucket in
34 * the structure tracking percentiles.
35 *
36 * (1) find the group (and error bits) that the value (latency)
37 * belongs to by looking at its MSB. (2) find the bucket number in the
38 * group by looking at the index bits.
39 *
40 */
41static unsigned int plat_val_to_idx(unsigned int val)
42{
43 unsigned int msb, error_bits, base, offset, idx;
44
45 /* Find MSB starting from bit 0 */
46 if (val == 0)
47 msb = 0;
48 else
49 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
50
716050f2
JA
51 /*
52 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
53 * all bits of the sample as index
54 */
83349190
YH
55 if (msb <= FIO_IO_U_PLAT_BITS)
56 return val;
57
58 /* Compute the number of error bits to discard*/
59 error_bits = msb - FIO_IO_U_PLAT_BITS;
60
61 /* Compute the number of buckets before the group */
62 base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
63
716050f2
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64 /*
65 * Discard the error bits and apply the mask to find the
66 * index for the buckets in the group
67 */
83349190
YH
68 offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
69
70 /* Make sure the index does not exceed (array size - 1) */
71 idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1)?
72 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
73
74 return idx;
75}
76
77/*
78 * Convert the given index of the bucket array to the value
79 * represented by the bucket
80 */
81static unsigned int plat_idx_to_val(unsigned int idx)
82{
83 unsigned int error_bits, k, base;
84
85 assert(idx < FIO_IO_U_PLAT_NR);
86
87 /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
88 * all bits of the sample as index */
89 if (idx < (FIO_IO_U_PLAT_VAL << 1) )
90 return idx;
91
92 /* Find the group and compute the minimum value of that group */
93 error_bits = (idx >> FIO_IO_U_PLAT_BITS) -1;
94 base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
95
96 /* Find its bucket number of the group */
97 k = idx % FIO_IO_U_PLAT_VAL;
98
99 /* Return the mean of the range of the bucket */
100 return base + ((k + 0.5) * (1 << error_bits));
101}
102
103static int double_cmp(const void *a, const void *b)
104{
802ad4a8
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105 const fio_fp64_t fa = *(const fio_fp64_t *) a;
106 const fio_fp64_t fb = *(const fio_fp64_t *) b;
83349190
YH
107 int cmp = 0;
108
802ad4a8 109 if (fa.u.f > fb.u.f)
83349190 110 cmp = 1;
802ad4a8 111 else if (fa.u.f < fb.u.f)
83349190
YH
112 cmp = -1;
113
114 return cmp;
115}
116
1db92cb6
JA
117static unsigned int calc_clat_percentiles(unsigned int *io_u_plat,
118 unsigned long nr, fio_fp64_t *plist,
119 unsigned int **output,
120 unsigned int *maxv,
121 unsigned int *minv)
83349190
YH
122{
123 unsigned long sum = 0;
1db92cb6
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124 unsigned int len, i, j = 0;
125 unsigned int oval_len = 0;
126 unsigned int *ovals = NULL;
127 int is_last;
128
129 *minv = -1U;
130 *maxv = 0;
83349190 131
802ad4a8
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132 len = 0;
133 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
134 len++;
716050f2 135
351de8de 136 if (!len)
1db92cb6 137 return 0;
351de8de 138
716050f2 139 /*
802ad4a8
JA
140 * Sort the percentile list. Note that it may already be sorted if
141 * we are using the default values, but since it's a short list this
142 * isn't a worry. Also note that this does not work for NaN values.
716050f2 143 */
802ad4a8
JA
144 if (len > 1)
145 qsort((void*)plist, len, sizeof(plist[0]), double_cmp);
83349190 146
4f6f8298
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147 /*
148 * Calculate bucket values, note down max and min values
149 */
07511a63
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150 is_last = 0;
151 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
83349190 152 sum += io_u_plat[i];
802ad4a8
JA
153 while (sum >= (plist[j].u.f / 100.0 * nr)) {
154 assert(plist[j].u.f <= 100.0);
83349190 155
4f6f8298
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156 if (j == oval_len) {
157 oval_len += 100;
158 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
159 }
160
161 ovals[j] = plat_idx_to_val(i);
1db92cb6
JA
162 if (ovals[j] < *minv)
163 *minv = ovals[j];
164 if (ovals[j] > *maxv)
165 *maxv = ovals[j];
07511a63
JA
166
167 is_last = (j == len - 1);
168 if (is_last)
169 break;
170
4f6f8298
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171 j++;
172 }
173 }
83349190 174
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175 *output = ovals;
176 return len;
177}
178
179/*
180 * Find and display the p-th percentile of clat
181 */
182static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
183 fio_fp64_t *plist)
184{
185 unsigned int len, j = 0, minv, maxv;
186 unsigned int *ovals;
187 int is_last, scale_down;
188
189 len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
190 if (!len)
191 goto out;
192
4f6f8298
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193 /*
194 * We default to usecs, but if the value range is such that we
195 * should scale down to msecs, do that.
196 */
197 if (minv > 2000 && maxv > 99999) {
198 scale_down = 1;
199 log_info(" clat percentiles (msec):\n |");
200 } else {
201 scale_down = 0;
202 log_info(" clat percentiles (usec):\n |");
203 }
83349190 204
4f6f8298
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205 for (j = 0; j < len; j++) {
206 char fbuf[8];
81ab0b3a 207
4f6f8298
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208 /* for formatting */
209 if (j != 0 && (j % 4) == 0)
210 log_info(" |");
83349190 211
4f6f8298
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212 /* end of the list */
213 is_last = (j == len - 1);
83349190 214
4f6f8298
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215 if (plist[j].u.f < 10.0)
216 sprintf(fbuf, " %2.2f", plist[j].u.f);
217 else
218 sprintf(fbuf, "%2.2f", plist[j].u.f);
219
220 if (scale_down)
221 ovals[j] = (ovals[j] + 999) / 1000;
222
223 log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
224
225 if (is_last)
226 break;
227
228 if (j % 4 == 3) /* for formatting */
229 log_info("\n");
83349190 230 }
4f6f8298 231
1db92cb6 232out:
4f6f8298
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233 if (ovals)
234 free(ovals);
83349190
YH
235}
236
3c39a379
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237static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
238 double *mean, double *dev)
239{
68704084 240 double n = is->samples;
3c39a379
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241
242 if (is->samples == 0)
243 return 0;
244
245 *min = is->min_val;
246 *max = is->max_val;
247
248 n = (double) is->samples;
802ad4a8 249 *mean = is->mean.u.f;
e6d276f2 250
68704084 251 if (n > 1.0)
802ad4a8 252 *dev = sqrt(is->S.u.f / (n - 1.0));
ef9c5c40 253 else
4b43f54e 254 *dev = 0;
ef9c5c40 255
3c39a379
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256 return 1;
257}
258
a64e88da 259void show_group_stats(struct group_run_stats *rs)
3c39a379 260{
dbe1125e
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261 char *p1, *p2, *p3, *p4;
262 const char *ddir_str[] = { " READ", " WRITE" };
263 int i;
264
25050629 265 log_info("Run status group %d (all jobs):\n", rs->groupid);
3c39a379 266
dbe1125e 267 for (i = 0; i <= DDIR_WRITE; i++) {
90fef2d1
JA
268 const int i2p = is_power_of_2(rs->kb_base);
269
dbe1125e
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270 if (!rs->max_run[i])
271 continue;
272
90fef2d1
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273 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p);
274 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p);
275 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p);
276 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p);
dbe1125e 277
b22989b9 278 log_info("%s: io=%sB, aggrb=%sB/s, minb=%sB/s, maxb=%sB/s,"
5ec10eaa
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279 " mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2,
280 p3, p4, rs->min_run[i],
281 rs->max_run[i]);
dbe1125e
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282
283 free(p1);
284 free(p2);
285 free(p3);
286 free(p4);
287 }
3c39a379
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288}
289
b3605062
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290#define ts_total_io_u(ts) \
291 ((ts)->total_io_u[0] + (ts)->total_io_u[1])
292
838bc709
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293static void stat_calc_dist(unsigned int *map, unsigned long total,
294 double *io_u_dist)
2270890c
JA
295{
296 int i;
297
298 /*
299 * Do depth distribution calculations
300 */
301 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
838bc709
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302 if (total) {
303 io_u_dist[i] = (double) map[i] / (double) total;
304 io_u_dist[i] *= 100.0;
305 if (io_u_dist[i] < 0.1 && map[i])
306 io_u_dist[i] = 0.1;
307 } else
308 io_u_dist[i] = 0.0;
2270890c
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309 }
310}
311
04a0feae
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312static void stat_calc_lat(struct thread_stat *ts, double *dst,
313 unsigned int *src, int nr)
2270890c 314{
838bc709 315 unsigned long total = ts_total_io_u(ts);
2270890c
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316 int i;
317
318 /*
319 * Do latency distribution calculations
320 */
04a0feae 321 for (i = 0; i < nr; i++) {
838bc709
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322 if (total) {
323 dst[i] = (double) src[i] / (double) total;
324 dst[i] *= 100.0;
325 if (dst[i] < 0.01 && src[i])
326 dst[i] = 0.01;
327 } else
328 dst[i] = 0.0;
2270890c
JA
329 }
330}
331
04a0feae
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332static void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
333{
334 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
335}
336
337static void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
338{
339 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
340}
341
ea2accc5
JA
342static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean,
343 double *dev)
344{
345 if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) {
346 *min /= 1000;
347 *max /= 1000;
348 *mean /= 1000.0;
349 *dev /= 1000.0;
350 return 0;
351 }
352
353 return 1;
354}
355
756867bd 356static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
3c39a379
JA
357 int ddir)
358{
3c9b60c1 359 const char *ddir_str[] = { "read ", "write" };
8879fd15 360 unsigned long min, max, runt;
b3605062 361 unsigned long long bw, iops;
3c39a379 362 double mean, dev;
b3605062 363 char *io_p, *bw_p, *iops_p;
90fef2d1 364 int i2p;
3c39a379 365
ff58fced
JA
366 assert(ddir_rw(ddir));
367
756867bd 368 if (!ts->runtime[ddir])
3c39a379
JA
369 return;
370
90fef2d1 371 i2p = is_power_of_2(rs->kb_base);
8879fd15
JA
372 runt = ts->runtime[ddir];
373
374 bw = (1000 * ts->io_bytes[ddir]) / runt;
90fef2d1
JA
375 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p);
376 bw_p = num2str(bw, 6, 1, i2p);
8879fd15 377
0aacc50c 378 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
b3605062 379 iops_p = num2str(iops, 6, 1, 0);
dbe1125e 380
cda99fa0 381 log_info(" %s: io=%sB, bw=%sB/s, iops=%s, runt=%6llumsec\n",
5ec10eaa
JA
382 ddir_str[ddir], io_p, bw_p, iops_p,
383 ts->runtime[ddir]);
dbe1125e
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384
385 free(io_p);
386 free(bw_p);
b3605062 387 free(iops_p);
3c39a379 388
d85f5118
JA
389 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
390 const char *base = "(usec)";
d9309cb1 391 char *minp, *maxp;
d85f5118 392
ea2accc5 393 if (!usec_to_msec(&min, &max, &mean, &dev))
d85f5118 394 base = "(msec)";
ea2accc5 395
d9309cb1
JA
396 minp = num2str(min, 6, 1, 0);
397 maxp = num2str(max, 6, 1, 0);
398
5ec10eaa
JA
399 log_info(" slat %s: min=%s, max=%s, avg=%5.02f,"
400 " stdev=%5.02f\n", base, minp, maxp, mean, dev);
d9309cb1
JA
401
402 free(minp);
403 free(maxp);
d85f5118
JA
404 }
405 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
406 const char *base = "(usec)";
d9309cb1 407 char *minp, *maxp;
d85f5118 408
ea2accc5
JA
409 if (!usec_to_msec(&min, &max, &mean, &dev))
410 base = "(msec)";
411
d9309cb1
JA
412 minp = num2str(min, 6, 1, 0);
413 maxp = num2str(max, 6, 1, 0);
5ec10eaa
JA
414
415 log_info(" clat %s: min=%s, max=%s, avg=%5.02f,"
416 " stdev=%5.02f\n", base, minp, maxp, mean, dev);
d9309cb1
JA
417
418 free(minp);
419 free(maxp);
d85f5118 420 }
02af0988
JA
421 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
422 const char *base = "(usec)";
423 char *minp, *maxp;
424
425 if (!usec_to_msec(&min, &max, &mean, &dev))
426 base = "(msec)";
427
428 minp = num2str(min, 6, 1, 0);
429 maxp = num2str(max, 6, 1, 0);
430
431 log_info(" lat %s: min=%s, max=%s, avg=%5.02f,"
432 " stdev=%5.02f\n", base, minp, maxp, mean, dev);
433
434 free(minp);
435 free(maxp);
436 }
83349190
YH
437 if (ts->clat_percentiles) {
438 show_clat_percentiles(ts->io_u_plat[ddir],
439 ts->clat_stat[ddir].samples,
440 ts->percentile_list);
441 }
079ad09b 442 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
3c39a379
JA
443 double p_of_agg;
444
445 p_of_agg = mean * 100 / (double) rs->agg[ddir];
c8eeb9df 446 log_info(" bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%,"
5ec10eaa
JA
447 " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg,
448 mean, dev);
3c39a379
JA
449 }
450}
451
04a0feae
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452static void show_lat(double *io_u_lat, int nr, const char **ranges,
453 const char *msg)
454{
455 int new_line = 1, i, line = 0;
456
457 for (i = 0; i < nr; i++) {
458 if (io_u_lat[i] <= 0.0)
459 continue;
460 if (new_line) {
4539ed73
JA
461 if (line)
462 log_info("\n");
04a0feae
JA
463 log_info(" lat (%s): ", msg);
464 new_line = 0;
465 line = 0;
466 }
467 if (line)
468 log_info(", ");
469 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
470 line++;
471 if (line == 5)
472 new_line = 1;
473 }
04a0feae
JA
474}
475
476static void show_lat_u(double *io_u_lat_u)
477{
478 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
479 "250=", "500=", "750=", "1000=", };
480
481 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
482}
483
484static void show_lat_m(double *io_u_lat_m)
485{
486 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
487 "250=", "500=", "750=", "1000=", "2000=",
488 ">=2000=", };
489
490 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
491}
492
493static void show_latencies(double *io_u_lat_u, double *io_u_lat_m)
494{
495 show_lat_u(io_u_lat_u);
4539ed73 496 log_info("\n");
04a0feae
JA
497 show_lat_m(io_u_lat_m);
498 log_info("\n");
499}
500
a64e88da 501void show_thread_status(struct thread_stat *ts, struct group_run_stats *rs)
3c39a379
JA
502{
503 double usr_cpu, sys_cpu;
69008999 504 unsigned long runtime;
71619dc2 505 double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae
JA
506 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
507 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
3c39a379 508
b4c5e1ac
JA
509 if (!(ts->io_bytes[0] + ts->io_bytes[1]) &&
510 !(ts->total_io_u[0] + ts->total_io_u[1]))
3c39a379
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511 return;
512
5ec10eaa
JA
513 if (!ts->error) {
514 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n",
515 ts->name, ts->groupid, ts->members,
5921e80c 516 ts->error, (int) ts->pid);
5ec10eaa
JA
517 } else {
518 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n",
519 ts->name, ts->groupid, ts->members,
5921e80c 520 ts->error, ts->verror, (int) ts->pid);
5ec10eaa 521 }
3c39a379 522
7bdce1bd 523 if (ts->description)
6d86144d 524 log_info(" Description : [%s]\n", ts->description);
7bdce1bd 525
756867bd
JA
526 if (ts->io_bytes[DDIR_READ])
527 show_ddir_status(rs, ts, DDIR_READ);
528 if (ts->io_bytes[DDIR_WRITE])
529 show_ddir_status(rs, ts, DDIR_WRITE);
3c39a379 530
756867bd 531 runtime = ts->total_run_time;
69008999 532 if (runtime) {
1e97cce9 533 double runt = (double) runtime;
3c39a379 534
756867bd
JA
535 usr_cpu = (double) ts->usr_time * 100 / runt;
536 sys_cpu = (double) ts->sys_time * 100 / runt;
3c39a379
JA
537 } else {
538 usr_cpu = 0;
539 sys_cpu = 0;
540 }
541
5ec10eaa
JA
542 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu,"
543 " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf);
71619dc2 544
838bc709 545 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist);
5ec10eaa
JA
546 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
547 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
548 io_u_dist[1], io_u_dist[2],
549 io_u_dist[3], io_u_dist[4],
550 io_u_dist[5], io_u_dist[6]);
838bc709
JA
551
552 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
553 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
554 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
555 io_u_dist[1], io_u_dist[2],
556 io_u_dist[3], io_u_dist[4],
557 io_u_dist[5], io_u_dist[6]);
558 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
559 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
560 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
561 io_u_dist[1], io_u_dist[2],
562 io_u_dist[3], io_u_dist[4],
563 io_u_dist[5], io_u_dist[6]);
0d29de83 564 log_info(" issued r/w/d: total=%lu/%lu/%lu, short=%lu/%lu/%lu\n",
5ec10eaa 565 ts->total_io_u[0], ts->total_io_u[1],
0d29de83
JA
566 ts->total_io_u[2],
567 ts->short_io_u[0], ts->short_io_u[1],
568 ts->short_io_u[2]);
838bc709
JA
569 stat_calc_lat_u(ts, io_u_lat_u);
570 stat_calc_lat_m(ts, io_u_lat_m);
04a0feae 571 show_latencies(io_u_lat_u, io_u_lat_m);
f2bba182 572 if (ts->continue_on_error) {
1ec99eea
JA
573 log_info(" errors : total=%lu, first_error=%d/<%s>\n",
574 ts->total_err_count,
575 ts->first_error,
576 strerror(ts->first_error));
f2bba182 577 }
3c39a379
JA
578}
579
756867bd 580static void show_ddir_status_terse(struct thread_stat *ts,
c6ae0a5b
JA
581 struct group_run_stats *rs, int ddir)
582{
583 unsigned long min, max;
312b4af2 584 unsigned long long bw, iops;
1db92cb6 585 unsigned int *ovals = NULL;
c6ae0a5b 586 double mean, dev;
1db92cb6
JA
587 unsigned int len, minv, maxv;
588 int i;
c6ae0a5b 589
ff58fced
JA
590 assert(ddir_rw(ddir));
591
312b4af2
JA
592 iops = bw = 0;
593 if (ts->runtime[ddir]) {
594 uint64_t runt = ts->runtime[ddir];
595
596 bw = ts->io_bytes[ddir] / runt;
597 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
598 }
c6ae0a5b 599
312b4af2 600 log_info(";%llu;%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, iops,
5ec10eaa 601 ts->runtime[ddir]);
c6ae0a5b 602
079ad09b 603 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
6d86144d 604 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b 605 else
6d86144d 606 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b 607
079ad09b 608 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
6d86144d 609 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b 610 else
6d86144d 611 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b 612
02af0988
JA
613 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
614 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
615 else
616 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
617
1db92cb6
JA
618 if (ts->clat_percentiles) {
619 len = calc_clat_percentiles(ts->io_u_plat[ddir],
620 ts->clat_stat[ddir].samples,
621 ts->percentile_list, &ovals, &maxv,
622 &minv);
623 } else
624 len = 0;
625
626 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
627 if (i >= len) {
628 log_info(";0%%=0");
629 continue;
630 }
631 log_info(";%2.2f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
632 }
633 if (ovals)
634 free(ovals);
635
079ad09b 636 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
c6ae0a5b
JA
637 double p_of_agg;
638
639 p_of_agg = mean * 100 / (double) rs->agg[ddir];
6d86144d 640 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
c6ae0a5b 641 } else
6d86144d 642 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
c6ae0a5b
JA
643}
644
312b4af2 645#define FIO_TERSE_VERSION "3"
c6ae0a5b 646
756867bd 647static void show_thread_status_terse(struct thread_stat *ts,
c6ae0a5b
JA
648 struct group_run_stats *rs)
649{
2270890c 650 double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae
JA
651 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
652 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
c6ae0a5b 653 double usr_cpu, sys_cpu;
04a0feae 654 int i;
c6ae0a5b 655
562c2d2f 656 /* General Info */
525c2bfa
JA
657 log_info("%s;%s;%d;%d", FIO_TERSE_VERSION, ts->name, ts->groupid,
658 ts->error);
562c2d2f 659 /* Log Read Status */
756867bd 660 show_ddir_status_terse(ts, rs, 0);
562c2d2f 661 /* Log Write Status */
756867bd 662 show_ddir_status_terse(ts, rs, 1);
c6ae0a5b 663
562c2d2f 664 /* CPU Usage */
756867bd
JA
665 if (ts->total_run_time) {
666 double runt = (double) ts->total_run_time;
c6ae0a5b 667
756867bd
JA
668 usr_cpu = (double) ts->usr_time * 100 / runt;
669 sys_cpu = (double) ts->sys_time * 100 / runt;
c6ae0a5b
JA
670 } else {
671 usr_cpu = 0;
672 sys_cpu = 0;
673 }
674
5ec10eaa
JA
675 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf,
676 ts->minf);
2270890c 677
562c2d2f 678 /* Calc % distribution of IO depths, usecond, msecond latency */
838bc709 679 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist);
04a0feae
JA
680 stat_calc_lat_u(ts, io_u_lat_u);
681 stat_calc_lat_m(ts, io_u_lat_m);
2270890c 682
562c2d2f 683 /* Only show fixed 7 I/O depth levels*/
5ec10eaa
JA
684 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
685 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
686 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
2270890c 687
562c2d2f 688 /* Microsecond latency */
04a0feae
JA
689 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
690 log_info(";%3.2f%%", io_u_lat_u[i]);
562c2d2f 691 /* Millisecond latency */
04a0feae
JA
692 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
693 log_info(";%3.2f%%", io_u_lat_m[i]);
562c2d2f 694 /* Additional output if continue_on_error set - default off*/
f2bba182
RR
695 if (ts->continue_on_error)
696 log_info(";%lu;%d", ts->total_err_count, ts->first_error);
04a0feae 697 log_info("\n");
2270890c 698
562c2d2f 699 /* Additional output if description is set */
2270890c 700 if (ts->description)
6d86144d 701 log_info(";%s", ts->description);
2270890c 702
6d86144d 703 log_info("\n");
756867bd
JA
704}
705
197574e4 706static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
756867bd
JA
707{
708 double mean, S;
709
e09231c2
ZL
710 if (src->samples == 0)
711 return;
712
756867bd
JA
713 dst->min_val = min(dst->min_val, src->min_val);
714 dst->max_val = max(dst->max_val, src->max_val);
756867bd
JA
715
716 /*
cdcac5cf
YH
717 * Compute new mean and S after the merge
718 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
719 * #Parallel_algorithm>
756867bd
JA
720 */
721 if (nr == 1) {
802ad4a8
JA
722 mean = src->mean.u.f;
723 S = src->S.u.f;
756867bd 724 } else {
802ad4a8 725 double delta = src->mean.u.f - dst->mean.u.f;
cdcac5cf 726
802ad4a8
JA
727 mean = ((src->mean.u.f * src->samples) +
728 (dst->mean.u.f * dst->samples)) /
cdcac5cf
YH
729 (dst->samples + src->samples);
730
802ad4a8 731 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
cdcac5cf
YH
732 (dst->samples * src->samples) /
733 (dst->samples + src->samples);
756867bd
JA
734 }
735
cdcac5cf 736 dst->samples += src->samples;
802ad4a8
JA
737 dst->mean.u.f = mean;
738 dst->S.u.f = S;
756867bd
JA
739}
740
37f0c1ae
JA
741void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
742{
743 int i;
744
745 for (i = 0; i < 2; i++) {
746 if (dst->max_run[i] < src->max_run[i])
747 dst->max_run[i] = src->max_run[i];
748 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
749 dst->min_run[i] = src->min_run[i];
750 if (dst->max_bw[i] < src->max_bw[i])
751 dst->max_bw[i] = src->max_bw[i];
752 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
753 dst->min_bw[i] = src->min_bw[i];
754
755 dst->io_kb[i] += src->io_kb[i];
756 dst->agg[i] += src->agg[i];
757 }
758
759}
760
5b9babb7
JA
761void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
762{
763 int l, k;
764
765 for (l = 0; l <= DDIR_WRITE; l++) {
766 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
767 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
768 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
769 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
770
771 dst->io_bytes[l] += src->io_bytes[l];
772
773 if (dst->runtime[l] < src->runtime[l])
774 dst->runtime[l] = src->runtime[l];
775 }
776
777 dst->usr_time += src->usr_time;
778 dst->sys_time += src->sys_time;
779 dst->ctx += src->ctx;
780 dst->majf += src->majf;
781 dst->minf += src->minf;
782
783 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
784 dst->io_u_map[k] += src->io_u_map[k];
785 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
786 dst->io_u_submit[k] += src->io_u_submit[k];
787 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
788 dst->io_u_complete[k] += src->io_u_complete[k];
789 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
790 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
791 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
792 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
793
794 for (k = 0; k <= 2; k++) {
795 dst->total_io_u[k] += src->total_io_u[k];
796 dst->short_io_u[k] += src->short_io_u[k];
797 }
798
799 for (k = 0; k <= DDIR_WRITE; k++) {
800 int m;
801 for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
802 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
803 }
804
805 dst->total_run_time += src->total_run_time;
806 dst->total_submit += src->total_submit;
807 dst->total_complete += src->total_complete;
808}
809
37f0c1ae
JA
810void init_group_run_stat(struct group_run_stats *gs)
811{
812 memset(gs, 0, sizeof(*gs));
813 gs->min_bw[0] = gs->min_run[0] = ~0UL;
814 gs->min_bw[1] = gs->min_run[1] = ~0UL;
815}
816
817void init_thread_stat(struct thread_stat *ts)
818{
819 int j;
820
821 memset(ts, 0, sizeof(*ts));
822
823 for (j = 0; j <= DDIR_WRITE; j++) {
824 ts->lat_stat[j].min_val = -1UL;
825 ts->clat_stat[j].min_val = -1UL;
826 ts->slat_stat[j].min_val = -1UL;
827 ts->bw_stat[j].min_val = -1UL;
828 }
829 ts->groupid = -1;
830}
831
3c39a379
JA
832void show_run_stats(void)
833{
834 struct group_run_stats *runstats, *rs;
835 struct thread_data *td;
756867bd 836 struct thread_stat *threadstats, *ts;
5b9babb7 837 int i, j, nr_ts, last_ts, idx;
90fef2d1 838 int kb_base_warned = 0;
3c39a379
JA
839
840 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
841
37f0c1ae
JA
842 for (i = 0; i < groupid + 1; i++)
843 init_group_run_stat(&runstats[i]);
3c39a379 844
756867bd
JA
845 /*
846 * find out how many threads stats we need. if group reporting isn't
847 * enabled, it's one-per-td.
848 */
849 nr_ts = 0;
850 last_ts = -1;
851 for_each_td(td, i) {
2dc1bbeb 852 if (!td->o.group_reporting) {
756867bd
JA
853 nr_ts++;
854 continue;
855 }
856 if (last_ts == td->groupid)
857 continue;
858
859 last_ts = td->groupid;
860 nr_ts++;
861 }
862
863 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
864
37f0c1ae
JA
865 for (i = 0; i < nr_ts; i++)
866 init_thread_stat(&threadstats[i]);
756867bd
JA
867
868 j = 0;
869 last_ts = -1;
197574e4 870 idx = 0;
34572e28 871 for_each_td(td, i) {
2dc1bbeb
JA
872 if (idx && (!td->o.group_reporting ||
873 (td->o.group_reporting && last_ts != td->groupid))) {
7abd0e3a
JA
874 idx = 0;
875 j++;
876 }
877
878 last_ts = td->groupid;
879
756867bd
JA
880 ts = &threadstats[j];
881
83349190
YH
882 ts->clat_percentiles = td->o.clat_percentiles;
883 if (td->o.overwrite_plist)
802ad4a8 884 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
83349190 885 else
802ad4a8 886 memcpy(ts->percentile_list, def_percentile_list, sizeof(def_percentile_list));
83349190 887
197574e4 888 idx++;
6586ee89 889 ts->members++;
756867bd 890
7abd0e3a 891 if (ts->groupid == -1) {
2dc84ba7
JA
892 /*
893 * These are per-group shared already
894 */
f6bb5b88 895 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE);
a64e88da
JA
896 if (td->o.description)
897 strncpy(ts->description, td->o.description,
898 FIO_JOBNAME_SIZE);
899 else
900 memset(ts->description, 0, FIO_JOBNAME_SIZE);
901
756867bd 902 ts->groupid = td->groupid;
2dc84ba7
JA
903
904 /*
905 * first pid in group, not very useful...
906 */
756867bd 907 ts->pid = td->pid;
90fef2d1
JA
908
909 ts->kb_base = td->o.kb_base;
910 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
911 log_info("fio: kb_base differs for jobs in group, using"
912 " %u as the base\n", ts->kb_base);
913 kb_base_warned = 1;
2dc84ba7
JA
914 }
915
f2bba182
RR
916 ts->continue_on_error = td->o.continue_on_error;
917 ts->total_err_count += td->total_err_count;
918 ts->first_error = td->first_error;
919 if (!ts->error) {
920 if (!td->error && td->o.continue_on_error &&
921 td->first_error) {
922 ts->error = td->first_error;
f6bb5b88 923 strcpy(ts->verror, td->verror);
f2bba182
RR
924 } else if (td->error) {
925 ts->error = td->error;
f6bb5b88 926 strcpy(ts->verror, td->verror);
f2bba182 927 }
756867bd
JA
928 }
929
5b9babb7 930 sum_thread_stats(ts, &td->ts, idx);
756867bd
JA
931 }
932
933 for (i = 0; i < nr_ts; i++) {
94370ac4 934 unsigned long long bw;
3c39a379 935
756867bd
JA
936 ts = &threadstats[i];
937 rs = &runstats[ts->groupid];
90fef2d1 938 rs->kb_base = ts->kb_base;
3c39a379 939
de64df05 940 for (j = 0; j <= DDIR_WRITE; j++) {
94370ac4
JA
941 if (!ts->runtime[j])
942 continue;
943 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
944 rs->min_run[j] = ts->runtime[j];
945 if (ts->runtime[j] > rs->max_run[j])
946 rs->max_run[j] = ts->runtime[j];
947
948 bw = 0;
8879fd15
JA
949 if (ts->runtime[j]) {
950 unsigned long runt;
951
90fef2d1 952 runt = ts->runtime[j];
8879fd15
JA
953 bw = ts->io_bytes[j] / runt;
954 }
94370ac4
JA
955 if (bw < rs->min_bw[j])
956 rs->min_bw[j] = bw;
957 if (bw > rs->max_bw[j])
958 rs->max_bw[j] = bw;
959
90fef2d1 960 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
94370ac4 961 }
3c39a379
JA
962 }
963
964 for (i = 0; i < groupid + 1; i++) {
8879fd15
JA
965 unsigned long max_run[2];
966
3c39a379 967 rs = &runstats[i];
90fef2d1
JA
968 max_run[0] = rs->max_run[0];
969 max_run[1] = rs->max_run[1];
3c39a379
JA
970
971 if (rs->max_run[0])
4cf1abc3 972 rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0];
3c39a379 973 if (rs->max_run[1])
4cf1abc3 974 rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1];
3c39a379
JA
975 }
976
977 /*
978 * don't overwrite last signal output
979 */
c6ae0a5b 980 if (!terse_output)
4ceb30d4 981 log_info("\n");
3c39a379 982
756867bd
JA
983 for (i = 0; i < nr_ts; i++) {
984 ts = &threadstats[i];
985 rs = &runstats[ts->groupid];
3c39a379 986
a64e88da
JA
987 if (is_backend)
988 fio_server_send_ts(ts, rs);
989 else if (terse_output)
756867bd 990 show_thread_status_terse(ts, rs);
c6ae0a5b 991 else
756867bd 992 show_thread_status(ts, rs);
3c39a379
JA
993 }
994
c6ae0a5b 995 if (!terse_output) {
a64e88da
JA
996 for (i = 0; i < groupid + 1; i++) {
997 rs = &runstats[i];
998
999 rs->groupid = i;
1000 if (is_backend)
1001 fio_server_send_gs(rs);
1002 else
1003 show_group_stats(rs);
1004 }
3c39a379 1005
d09a64a0
JA
1006 if (is_backend)
1007 fio_server_send_du();
1008 else
1009 show_disk_util();
1010
1011 free_disk_util();
c6ae0a5b 1012 }
eecf272f
JA
1013
1014 free(runstats);
756867bd 1015 free(threadstats);
3c39a379
JA
1016}
1017
68704084 1018static inline void add_stat_sample(struct io_stat *is, unsigned long data)
3c39a379 1019{
68704084 1020 double val = data;
6660cc67 1021 double delta;
68704084
JA
1022
1023 if (data > is->max_val)
1024 is->max_val = data;
1025 if (data < is->min_val)
1026 is->min_val = data;
1027
802ad4a8 1028 delta = val - is->mean.u.f;
ef11d737 1029 if (delta) {
802ad4a8
JA
1030 is->mean.u.f += delta / (is->samples + 1.0);
1031 is->S.u.f += delta * (val - is->mean.u.f);
ef11d737 1032 }
3c39a379 1033
3c39a379
JA
1034 is->samples++;
1035}
1036
bb3884d8 1037static void __add_log_sample(struct io_log *iolog, unsigned long val,
306ddc97 1038 enum fio_ddir ddir, unsigned int bs,
2b13e716 1039 unsigned long t)
3c39a379 1040{
306ddc97
JA
1041 const int nr_samples = iolog->nr_samples;
1042
3c39a379
JA
1043 if (iolog->nr_samples == iolog->max_samples) {
1044 int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
1045
1046 iolog->log = realloc(iolog->log, new_size);
1047 iolog->max_samples <<= 1;
1048 }
1049
306ddc97 1050 iolog->log[nr_samples].val = val;
2b13e716 1051 iolog->log[nr_samples].time = t;
306ddc97
JA
1052 iolog->log[nr_samples].ddir = ddir;
1053 iolog->log[nr_samples].bs = bs;
3c39a379
JA
1054 iolog->nr_samples++;
1055}
1056
bb3884d8 1057static void add_log_sample(struct thread_data *td, struct io_log *iolog,
306ddc97
JA
1058 unsigned long val, enum fio_ddir ddir,
1059 unsigned int bs)
bb3884d8 1060{
ff58fced
JA
1061 if (!ddir_rw(ddir))
1062 return;
1063
306ddc97 1064 __add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch));
bb3884d8
JA
1065}
1066
306ddc97 1067void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
bb3884d8 1068{
ff58fced 1069 struct io_log *iolog;
bb3884d8 1070
ff58fced
JA
1071 if (!ddir_rw(ddir))
1072 return;
1073
1074 iolog = agg_io_log[ddir];
306ddc97 1075 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis());
bb3884d8
JA
1076}
1077
83349190
YH
1078static void add_clat_percentile_sample(struct thread_stat *ts,
1079 unsigned long usec, enum fio_ddir ddir)
1080{
1081 unsigned int idx = plat_val_to_idx(usec);
1082 assert(idx < FIO_IO_U_PLAT_NR);
1083
1084 ts->io_u_plat[ddir][idx]++;
1085}
1086
1e97cce9 1087void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
306ddc97 1088 unsigned long usec, unsigned int bs)
3c39a379 1089{
756867bd 1090 struct thread_stat *ts = &td->ts;
079ad09b 1091
ff58fced
JA
1092 if (!ddir_rw(ddir))
1093 return;
1094
d85f5118 1095 add_stat_sample(&ts->clat_stat[ddir], usec);
3c39a379 1096
7b9f733a
JA
1097 if (td->clat_log)
1098 add_log_sample(td, td->clat_log, usec, ddir, bs);
83349190
YH
1099
1100 if (ts->clat_percentiles)
1101 add_clat_percentile_sample(ts, usec, ddir);
3c39a379
JA
1102}
1103
1e97cce9 1104void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
306ddc97 1105 unsigned long usec, unsigned int bs)
3c39a379 1106{
756867bd 1107 struct thread_stat *ts = &td->ts;
079ad09b 1108
ff58fced
JA
1109 if (!ddir_rw(ddir))
1110 return;
1111
d85f5118 1112 add_stat_sample(&ts->slat_stat[ddir], usec);
3c39a379 1113
7b9f733a
JA
1114 if (td->slat_log)
1115 add_log_sample(td, td->slat_log, usec, ddir, bs);
3c39a379
JA
1116}
1117
02af0988
JA
1118void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
1119 unsigned long usec, unsigned int bs)
1120{
1121 struct thread_stat *ts = &td->ts;
1122
ff58fced
JA
1123 if (!ddir_rw(ddir))
1124 return;
1125
02af0988
JA
1126 add_stat_sample(&ts->lat_stat[ddir], usec);
1127
7b9f733a
JA
1128 if (td->lat_log)
1129 add_log_sample(td, td->lat_log, usec, ddir, bs);
02af0988
JA
1130}
1131
306ddc97 1132void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
1e97cce9 1133 struct timeval *t)
3c39a379 1134{
756867bd 1135 struct thread_stat *ts = &td->ts;
ff58fced
JA
1136 unsigned long spent, rate;
1137
1138 if (!ddir_rw(ddir))
1139 return;
3c39a379 1140
c8eeb9df 1141 spent = mtime_since(&td->bw_sample_time, t);
2dc1bbeb 1142 if (spent < td->o.bw_avg_time)
3c39a379
JA
1143 return;
1144
f0505a14 1145 rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) *
0b9d69ec 1146 1000 / spent / 1024;
079ad09b 1147 add_stat_sample(&ts->bw_stat[ddir], rate);
3c39a379 1148
7b9f733a
JA
1149 if (td->bw_log)
1150 add_log_sample(td, td->bw_log, rate, ddir, bs);
3c39a379 1151
c8eeb9df 1152 fio_gettime(&td->bw_sample_time, NULL);
f0505a14 1153 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
3c39a379 1154}
c8eeb9df
JA
1155
1156void add_iops_sample(struct thread_data *td, enum fio_ddir ddir,
1157 struct timeval *t)
1158{
1159 struct thread_stat *ts = &td->ts;
1160 unsigned long spent, iops;
1161
1162 if (!ddir_rw(ddir))
1163 return;
1164
1165 spent = mtime_since(&td->iops_sample_time, t);
1166 if (spent < td->o.iops_avg_time)
1167 return;
1168
1169 iops = ((td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]) * 1000) / spent;
1170
1171 add_stat_sample(&ts->iops_stat[ddir], iops);
1172
1173 if (td->iops_log) {
1174 assert(iops);
1175 add_log_sample(td, td->iops_log, iops, ddir, 0);
1176 }
1177
1178 fio_gettime(&td->iops_sample_time, NULL);
1179 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
1180}