blob: 19b36961aa4854f0e3fb27a692b04ed5f52cb9e9 [file] [log] [blame]
Jens Axboe3c39a372006-06-06 20:56:12 +02001#include <stdio.h>
2#include <string.h>
3#include <sys/time.h>
4#include <sys/types.h>
Jens Axboe5c4e1db2006-06-07 14:17:08 +02005#include <sys/stat.h>
Jens Axboe3c39a372006-06-06 20:56:12 +02006#include <dirent.h>
7#include <libgen.h>
8#include <math.h>
9
10#include "fio.h"
Jens Axboe7c9b1bc2009-06-03 09:25:57 +020011#include "diskutil.h"
Jens Axboec7c6cb42011-10-13 14:12:40 +020012#include "lib/ieee754.h"
Jens Axboe3c39a372006-06-06 20:56:12 +020013
Jens Axboe3c39a372006-06-06 20:56:12 +020014void update_rusage_stat(struct thread_data *td)
15{
Jens Axboe756867b2007-03-06 15:19:24 +010016 struct thread_stat *ts = &td->ts;
Jens Axboe3c39a372006-06-06 20:56:12 +020017
Jens Axboec8aaba12011-10-03 12:14:19 +020018 getrusage(RUSAGE_SELF, &td->ru_end);
Jens Axboe079ad092007-02-20 13:58:20 +010019
Jens Axboec8aaba12011-10-03 12:14:19 +020020 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;
Jens Axboe5ec10ea2008-03-06 15:42:00 +010028
Jens Axboec8aaba12011-10-03 12:14:19 +020029 memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
Jens Axboe3c39a372006-06-06 20:56:12 +020030}
31
Yu-ju Hong83349192011-08-13 00:53:44 +020032/*
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
Jens Axboe716050f2011-08-16 08:43:45 +020051 /*
52 * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
53 * all bits of the sample as index
54 */
Yu-ju Hong83349192011-08-13 00:53:44 +020055 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
Jens Axboe716050f2011-08-16 08:43:45 +020064 /*
65 * Discard the error bits and apply the mask to find the
66 * index for the buckets in the group
67 */
Yu-ju Hong83349192011-08-13 00:53:44 +020068 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{
Jens Axboe802ad4a2011-10-05 09:51:58 +0200105 const fio_fp64_t fa = *(const fio_fp64_t *) a;
106 const fio_fp64_t fb = *(const fio_fp64_t *) b;
Yu-ju Hong83349192011-08-13 00:53:44 +0200107 int cmp = 0;
108
Jens Axboe802ad4a2011-10-05 09:51:58 +0200109 if (fa.u.f > fb.u.f)
Yu-ju Hong83349192011-08-13 00:53:44 +0200110 cmp = 1;
Jens Axboe802ad4a2011-10-05 09:51:58 +0200111 else if (fa.u.f < fb.u.f)
Yu-ju Hong83349192011-08-13 00:53:44 +0200112 cmp = -1;
113
114 return cmp;
115}
116
Jens Axboe1db92cb2011-10-13 13:43:36 +0200117static 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)
Yu-ju Hong83349192011-08-13 00:53:44 +0200122{
123 unsigned long sum = 0;
Jens Axboe1db92cb2011-10-13 13:43:36 +0200124 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;
Yu-ju Hong83349192011-08-13 00:53:44 +0200131
Jens Axboe802ad4a2011-10-05 09:51:58 +0200132 len = 0;
133 while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
134 len++;
Jens Axboe716050f2011-08-16 08:43:45 +0200135
Jens Axboe351de8d2011-10-12 21:03:45 +0200136 if (!len)
Jens Axboe1db92cb2011-10-13 13:43:36 +0200137 return 0;
Jens Axboe351de8d2011-10-12 21:03:45 +0200138
Jens Axboe716050f2011-08-16 08:43:45 +0200139 /*
Jens Axboe802ad4a2011-10-05 09:51:58 +0200140 * 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.
Jens Axboe716050f2011-08-16 08:43:45 +0200143 */
Jens Axboe802ad4a2011-10-05 09:51:58 +0200144 if (len > 1)
145 qsort((void*)plist, len, sizeof(plist[0]), double_cmp);
Yu-ju Hong83349192011-08-13 00:53:44 +0200146
Jens Axboe4f6f8292011-10-13 09:28:21 +0200147 /*
148 * Calculate bucket values, note down max and min values
149 */
Jens Axboe07511a62011-10-13 12:00:24 +0200150 is_last = 0;
151 for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
Yu-ju Hong83349192011-08-13 00:53:44 +0200152 sum += io_u_plat[i];
Jens Axboe802ad4a2011-10-05 09:51:58 +0200153 while (sum >= (plist[j].u.f / 100.0 * nr)) {
154 assert(plist[j].u.f <= 100.0);
Yu-ju Hong83349192011-08-13 00:53:44 +0200155
Jens Axboe4f6f8292011-10-13 09:28:21 +0200156 if (j == oval_len) {
157 oval_len += 100;
158 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
159 }
Yu-ju Hong83349192011-08-13 00:53:44 +0200160
Jens Axboe4f6f8292011-10-13 09:28:21 +0200161 ovals[j] = plat_idx_to_val(i);
Jens Axboe1db92cb2011-10-13 13:43:36 +0200162 if (ovals[j] < *minv)
163 *minv = ovals[j];
164 if (ovals[j] > *maxv)
165 *maxv = ovals[j];
Jens Axboe07511a62011-10-13 12:00:24 +0200166
167 is_last = (j == len - 1);
168 if (is_last)
169 break;
170
Jens Axboe4f6f8292011-10-13 09:28:21 +0200171 j++;
Yu-ju Hong83349192011-08-13 00:53:44 +0200172 }
173 }
Jens Axboe4f6f8292011-10-13 09:28:21 +0200174
Jens Axboe1db92cb2011-10-13 13:43:36 +0200175 *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
Jens Axboe4f6f8292011-10-13 09:28:21 +0200193 /*
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 }
204
205 for (j = 0; j < len; j++) {
206 char fbuf[8];
207
208 /* for formatting */
209 if (j != 0 && (j % 4) == 0)
210 log_info(" |");
211
212 /* end of the list */
213 is_last = (j == len - 1);
214
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");
230 }
231
Jens Axboe1db92cb2011-10-13 13:43:36 +0200232out:
Jens Axboe4f6f8292011-10-13 09:28:21 +0200233 if (ovals)
234 free(ovals);
Yu-ju Hong83349192011-08-13 00:53:44 +0200235}
236
Jens Axboe3c39a372006-06-06 20:56:12 +0200237static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
238 double *mean, double *dev)
239{
Jens Axboe68704082007-01-10 19:56:37 +0100240 double n = is->samples;
Jens Axboe3c39a372006-06-06 20:56:12 +0200241
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;
Jens Axboe802ad4a2011-10-05 09:51:58 +0200249 *mean = is->mean.u.f;
Jens Axboe3c39a372006-06-06 20:56:12 +0200250
Jens Axboe68704082007-01-10 19:56:37 +0100251 if (n > 1.0)
Jens Axboe802ad4a2011-10-05 09:51:58 +0200252 *dev = sqrt(is->S.u.f / (n - 1.0));
Jens Axboeef9c5c42007-01-03 14:21:13 +0100253 else
Jens Axboe4b43f542007-07-19 21:38:35 +0200254 *dev = 0;
Jens Axboeef9c5c42007-01-03 14:21:13 +0100255
Jens Axboe3c39a372006-06-06 20:56:12 +0200256 return 1;
257}
258
Jens Axboea64e88d2011-10-03 14:20:01 +0200259void show_group_stats(struct group_run_stats *rs)
Jens Axboe3c39a372006-06-06 20:56:12 +0200260{
Jens Axboedbe11252007-02-11 00:19:51 +0100261 char *p1, *p2, *p3, *p4;
262 const char *ddir_str[] = { " READ", " WRITE" };
263 int i;
264
Jens Axboe7e1773b2011-10-14 12:47:56 +0200265 log_info("\nRun status group %d (all jobs):\n", rs->groupid);
Jens Axboe3c39a372006-06-06 20:56:12 +0200266
Jens Axboedbe11252007-02-11 00:19:51 +0100267 for (i = 0; i <= DDIR_WRITE; i++) {
Jens Axboe90fef2d2009-07-17 22:33:32 +0200268 const int i2p = is_power_of_2(rs->kb_base);
269
Jens Axboedbe11252007-02-11 00:19:51 +0100270 if (!rs->max_run[i])
271 continue;
272
Jens Axboe90fef2d2009-07-17 22:33:32 +0200273 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);
Jens Axboedbe11252007-02-11 00:19:51 +0100277
Jens Axboeb22989b2009-07-17 22:29:23 +0200278 log_info("%s: io=%sB, aggrb=%sB/s, minb=%sB/s, maxb=%sB/s,"
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100279 " mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2,
280 p3, p4, rs->min_run[i],
281 rs->max_run[i]);
Jens Axboedbe11252007-02-11 00:19:51 +0100282
283 free(p1);
284 free(p2);
285 free(p3);
286 free(p4);
287 }
Jens Axboe3c39a372006-06-06 20:56:12 +0200288}
289
Jens Axboeb3605062007-03-12 14:19:47 +0100290#define ts_total_io_u(ts) \
291 ((ts)->total_io_u[0] + (ts)->total_io_u[1])
292
Jens Axboe838bc702008-05-22 13:08:23 +0200293static void stat_calc_dist(unsigned int *map, unsigned long total,
294 double *io_u_dist)
Jens Axboe22708902007-03-06 17:05:32 +0100295{
296 int i;
297
298 /*
299 * Do depth distribution calculations
300 */
301 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
Jens Axboe838bc702008-05-22 13:08:23 +0200302 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;
Jens Axboe22708902007-03-06 17:05:32 +0100309 }
310}
311
Jens Axboe04a0fea2007-06-19 12:48:41 +0200312static void stat_calc_lat(struct thread_stat *ts, double *dst,
313 unsigned int *src, int nr)
Jens Axboe22708902007-03-06 17:05:32 +0100314{
Jens Axboe838bc702008-05-22 13:08:23 +0200315 unsigned long total = ts_total_io_u(ts);
Jens Axboe22708902007-03-06 17:05:32 +0100316 int i;
317
318 /*
319 * Do latency distribution calculations
320 */
Jens Axboe04a0fea2007-06-19 12:48:41 +0200321 for (i = 0; i < nr; i++) {
Jens Axboe838bc702008-05-22 13:08:23 +0200322 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;
Jens Axboe22708902007-03-06 17:05:32 +0100329 }
330}
331
Jens Axboe04a0fea2007-06-19 12:48:41 +0200332static 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
Jens Axboeea2accc2007-06-19 09:48:44 +0200342static 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
Jens Axboe756867b2007-03-06 15:19:24 +0100356static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
Jens Axboe3c39a372006-06-06 20:56:12 +0200357 int ddir)
358{
Jens Axboe3c9b60c2006-11-07 08:36:14 +0100359 const char *ddir_str[] = { "read ", "write" };
Jens Axboe8879fd12009-04-20 10:06:02 +0200360 unsigned long min, max, runt;
Jens Axboeb3605062007-03-12 14:19:47 +0100361 unsigned long long bw, iops;
Jens Axboe3c39a372006-06-06 20:56:12 +0200362 double mean, dev;
Jens Axboeb3605062007-03-12 14:19:47 +0100363 char *io_p, *bw_p, *iops_p;
Jens Axboe90fef2d2009-07-17 22:33:32 +0200364 int i2p;
Jens Axboe3c39a372006-06-06 20:56:12 +0200365
Jens Axboeff58fce2010-08-25 12:02:08 +0200366 assert(ddir_rw(ddir));
367
Jens Axboe756867b2007-03-06 15:19:24 +0100368 if (!ts->runtime[ddir])
Jens Axboe3c39a372006-06-06 20:56:12 +0200369 return;
370
Jens Axboe90fef2d2009-07-17 22:33:32 +0200371 i2p = is_power_of_2(rs->kb_base);
Jens Axboe8879fd12009-04-20 10:06:02 +0200372 runt = ts->runtime[ddir];
373
374 bw = (1000 * ts->io_bytes[ddir]) / runt;
Jens Axboe90fef2d2009-07-17 22:33:32 +0200375 io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p);
376 bw_p = num2str(bw, 6, 1, i2p);
Jens Axboe8879fd12009-04-20 10:06:02 +0200377
Bruce Cran0aacc502011-07-09 08:19:53 +0200378 iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
Jens Axboeb3605062007-03-12 14:19:47 +0100379 iops_p = num2str(iops, 6, 1, 0);
Jens Axboedbe11252007-02-11 00:19:51 +0100380
Signed-off-by Steven Prattcda99fa2010-12-14 08:31:36 +0100381 log_info(" %s: io=%sB, bw=%sB/s, iops=%s, runt=%6llumsec\n",
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100382 ddir_str[ddir], io_p, bw_p, iops_p,
383 ts->runtime[ddir]);
Jens Axboedbe11252007-02-11 00:19:51 +0100384
385 free(io_p);
386 free(bw_p);
Jens Axboeb3605062007-03-12 14:19:47 +0100387 free(iops_p);
Jens Axboe3c39a372006-06-06 20:56:12 +0200388
Jens Axboed85f5112007-06-18 09:41:23 +0200389 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
390 const char *base = "(usec)";
Jens Axboed9309cb2007-08-16 13:07:46 +0200391 char *minp, *maxp;
Jens Axboe3c39a372006-06-06 20:56:12 +0200392
Jens Axboeea2accc2007-06-19 09:48:44 +0200393 if (!usec_to_msec(&min, &max, &mean, &dev))
Jens Axboed85f5112007-06-18 09:41:23 +0200394 base = "(msec)";
Jens Axboeea2accc2007-06-19 09:48:44 +0200395
Jens Axboed9309cb2007-08-16 13:07:46 +0200396 minp = num2str(min, 6, 1, 0);
397 maxp = num2str(max, 6, 1, 0);
398
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100399 log_info(" slat %s: min=%s, max=%s, avg=%5.02f,"
400 " stdev=%5.02f\n", base, minp, maxp, mean, dev);
Jens Axboed9309cb2007-08-16 13:07:46 +0200401
402 free(minp);
403 free(maxp);
Jens Axboed85f5112007-06-18 09:41:23 +0200404 }
405 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
406 const char *base = "(usec)";
Jens Axboed9309cb2007-08-16 13:07:46 +0200407 char *minp, *maxp;
Jens Axboe3c39a372006-06-06 20:56:12 +0200408
Jens Axboeea2accc2007-06-19 09:48:44 +0200409 if (!usec_to_msec(&min, &max, &mean, &dev))
410 base = "(msec)";
411
Jens Axboed9309cb2007-08-16 13:07:46 +0200412 minp = num2str(min, 6, 1, 0);
413 maxp = num2str(max, 6, 1, 0);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100414
415 log_info(" clat %s: min=%s, max=%s, avg=%5.02f,"
416 " stdev=%5.02f\n", base, minp, maxp, mean, dev);
Jens Axboed9309cb2007-08-16 13:07:46 +0200417
418 free(minp);
419 free(maxp);
Jens Axboed85f5112007-06-18 09:41:23 +0200420 }
Jens Axboe02af0982010-06-24 09:59:34 +0200421 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 }
Yu-ju Hong83349192011-08-13 00:53:44 +0200437 if (ts->clat_percentiles) {
438 show_clat_percentiles(ts->io_u_plat[ddir],
439 ts->clat_stat[ddir].samples,
440 ts->percentile_list);
441 }
Jens Axboe079ad092007-02-20 13:58:20 +0100442 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
Jens Axboe3c39a372006-06-06 20:56:12 +0200443 double p_of_agg;
Jens Axboeb7017e32011-10-14 09:30:01 +0200444 const char *bw_str = "KB";
Jens Axboe3c39a372006-06-06 20:56:12 +0200445
446 p_of_agg = mean * 100 / (double) rs->agg[ddir];
Jens Axboeb7017e32011-10-14 09:30:01 +0200447 if (p_of_agg > 100.0)
448 p_of_agg = 100.0;
449
450 if (mean > 999999.9) {
451 min /= 1000.0;
452 max /= 1000.0;
453 mean /= 1000.0;
454 dev /= 1000.0;
455 bw_str = "MB";
456 }
457
Jens Axboe7e1773b2011-10-14 12:47:56 +0200458 log_info(" bw (%s/s) : min=%5lu, max=%5lu, per=%3.2f%%,"
Jens Axboeb7017e32011-10-14 09:30:01 +0200459 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
460 p_of_agg, mean, dev);
Jens Axboe3c39a372006-06-06 20:56:12 +0200461 }
462}
463
Jens Axboe7e1773b2011-10-14 12:47:56 +0200464static int show_lat(double *io_u_lat, int nr, const char **ranges,
465 const char *msg)
Jens Axboe04a0fea2007-06-19 12:48:41 +0200466{
Jens Axboe7e1773b2011-10-14 12:47:56 +0200467 int new_line = 1, i, line = 0, shown = 0;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200468
469 for (i = 0; i < nr; i++) {
470 if (io_u_lat[i] <= 0.0)
471 continue;
Jens Axboe7e1773b2011-10-14 12:47:56 +0200472 shown = 1;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200473 if (new_line) {
Jens Axboe4539ed72007-07-23 14:21:17 +0200474 if (line)
475 log_info("\n");
Jens Axboe7e1773b2011-10-14 12:47:56 +0200476 log_info(" lat (%s) : ", msg);
Jens Axboe04a0fea2007-06-19 12:48:41 +0200477 new_line = 0;
478 line = 0;
479 }
480 if (line)
481 log_info(", ");
482 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
483 line++;
484 if (line == 5)
485 new_line = 1;
486 }
Jens Axboe7e1773b2011-10-14 12:47:56 +0200487
488 if (shown)
489 log_info("\n");
490
491 return shown;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200492}
493
494static void show_lat_u(double *io_u_lat_u)
495{
496 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
497 "250=", "500=", "750=", "1000=", };
498
499 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
500}
501
502static void show_lat_m(double *io_u_lat_m)
503{
504 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
505 "250=", "500=", "750=", "1000=", "2000=",
506 ">=2000=", };
507
508 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
509}
510
511static void show_latencies(double *io_u_lat_u, double *io_u_lat_m)
512{
513 show_lat_u(io_u_lat_u);
514 show_lat_m(io_u_lat_m);
Jens Axboe04a0fea2007-06-19 12:48:41 +0200515}
516
Jens Axboea64e88d2011-10-03 14:20:01 +0200517void show_thread_status(struct thread_stat *ts, struct group_run_stats *rs)
Jens Axboe3c39a372006-06-06 20:56:12 +0200518{
519 double usr_cpu, sys_cpu;
Jens Axboe69008992006-11-24 13:12:56 +0100520 unsigned long runtime;
Jens Axboe71619dc2007-01-13 23:56:33 +0100521 double io_u_dist[FIO_IO_U_MAP_NR];
Jens Axboe04a0fea2007-06-19 12:48:41 +0200522 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
523 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
Jens Axboe3c39a372006-06-06 20:56:12 +0200524
Jens Axboeb4c5e1a2007-10-25 18:44:45 +0200525 if (!(ts->io_bytes[0] + ts->io_bytes[1]) &&
526 !(ts->total_io_u[0] + ts->total_io_u[1]))
Jens Axboe3c39a372006-06-06 20:56:12 +0200527 return;
528
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100529 if (!ts->error) {
530 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n",
531 ts->name, ts->groupid, ts->members,
Jens Axboe5921e802008-05-30 15:02:38 +0200532 ts->error, (int) ts->pid);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100533 } else {
534 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n",
535 ts->name, ts->groupid, ts->members,
Jens Axboe5921e802008-05-30 15:02:38 +0200536 ts->error, ts->verror, (int) ts->pid);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100537 }
Jens Axboe3c39a372006-06-06 20:56:12 +0200538
Jens Axboe259e47d2011-10-13 21:05:59 +0200539 if (strlen(ts->description))
Jens Axboe6d861442007-03-15 09:22:23 +0100540 log_info(" Description : [%s]\n", ts->description);
Jens Axboe7bdce1b2007-03-06 20:01:13 +0100541
Jens Axboe756867b2007-03-06 15:19:24 +0100542 if (ts->io_bytes[DDIR_READ])
543 show_ddir_status(rs, ts, DDIR_READ);
544 if (ts->io_bytes[DDIR_WRITE])
545 show_ddir_status(rs, ts, DDIR_WRITE);
Jens Axboe3c39a372006-06-06 20:56:12 +0200546
Jens Axboe7e1773b2011-10-14 12:47:56 +0200547 stat_calc_lat_u(ts, io_u_lat_u);
548 stat_calc_lat_m(ts, io_u_lat_m);
549 show_latencies(io_u_lat_u, io_u_lat_m);
550
Jens Axboe756867b2007-03-06 15:19:24 +0100551 runtime = ts->total_run_time;
Jens Axboe69008992006-11-24 13:12:56 +0100552 if (runtime) {
Jens Axboe1e97cce2006-12-05 11:44:16 +0100553 double runt = (double) runtime;
Jens Axboe3c39a372006-06-06 20:56:12 +0200554
Jens Axboe756867b2007-03-06 15:19:24 +0100555 usr_cpu = (double) ts->usr_time * 100 / runt;
556 sys_cpu = (double) ts->sys_time * 100 / runt;
Jens Axboe3c39a372006-06-06 20:56:12 +0200557 } else {
558 usr_cpu = 0;
559 sys_cpu = 0;
560 }
561
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100562 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu,"
563 " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf);
Jens Axboe71619dc2007-01-13 23:56:33 +0100564
Jens Axboe838bc702008-05-22 13:08:23 +0200565 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100566 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
567 " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
568 io_u_dist[1], io_u_dist[2],
569 io_u_dist[3], io_u_dist[4],
570 io_u_dist[5], io_u_dist[6]);
Jens Axboe838bc702008-05-22 13:08:23 +0200571
572 stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
573 log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
574 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
575 io_u_dist[1], io_u_dist[2],
576 io_u_dist[3], io_u_dist[4],
577 io_u_dist[5], io_u_dist[6]);
578 stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
579 log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
580 " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
581 io_u_dist[1], io_u_dist[2],
582 io_u_dist[3], io_u_dist[4],
583 io_u_dist[5], io_u_dist[6]);
Jens Axboe7e1773b2011-10-14 12:47:56 +0200584 log_info(" issued : total=r=%lu/w=%lu/d=%lu,"
585 " short=r=%lu/w=%lu/d=%lu\n",
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100586 ts->total_io_u[0], ts->total_io_u[1],
Jens Axboe0d29de82010-09-01 13:54:15 +0200587 ts->total_io_u[2],
588 ts->short_io_u[0], ts->short_io_u[1],
589 ts->short_io_u[2]);
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200590 if (ts->continue_on_error) {
Jens Axboe1ec99ee2009-06-15 12:37:30 +0200591 log_info(" errors : total=%lu, first_error=%d/<%s>\n",
592 ts->total_err_count,
593 ts->first_error,
594 strerror(ts->first_error));
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200595 }
Jens Axboe3c39a372006-06-06 20:56:12 +0200596}
597
Jens Axboe756867b2007-03-06 15:19:24 +0100598static void show_ddir_status_terse(struct thread_stat *ts,
Jens Axboec6ae0a52006-06-12 11:04:44 +0200599 struct group_run_stats *rs, int ddir)
600{
601 unsigned long min, max;
Jens Axboe312b4af2011-10-13 13:11:42 +0200602 unsigned long long bw, iops;
Jens Axboe1db92cb2011-10-13 13:43:36 +0200603 unsigned int *ovals = NULL;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200604 double mean, dev;
Jens Axboe1db92cb2011-10-13 13:43:36 +0200605 unsigned int len, minv, maxv;
606 int i;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200607
Jens Axboeff58fce2010-08-25 12:02:08 +0200608 assert(ddir_rw(ddir));
609
Jens Axboe312b4af2011-10-13 13:11:42 +0200610 iops = bw = 0;
611 if (ts->runtime[ddir]) {
612 uint64_t runt = ts->runtime[ddir];
Jens Axboec6ae0a52006-06-12 11:04:44 +0200613
Jens Axboe312b4af2011-10-13 13:11:42 +0200614 bw = ts->io_bytes[ddir] / runt;
615 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
616 }
617
618 log_info(";%llu;%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, iops,
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100619 ts->runtime[ddir]);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200620
Jens Axboe079ad092007-02-20 13:58:20 +0100621 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
Jens Axboe6d861442007-03-15 09:22:23 +0100622 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200623 else
Jens Axboe6d861442007-03-15 09:22:23 +0100624 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200625
Jens Axboe079ad092007-02-20 13:58:20 +0100626 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
Jens Axboe6d861442007-03-15 09:22:23 +0100627 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200628 else
Jens Axboe6d861442007-03-15 09:22:23 +0100629 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200630
Jens Axboe02af0982010-06-24 09:59:34 +0200631 if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
632 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
633 else
634 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
635
Jens Axboe1db92cb2011-10-13 13:43:36 +0200636 if (ts->clat_percentiles) {
637 len = calc_clat_percentiles(ts->io_u_plat[ddir],
638 ts->clat_stat[ddir].samples,
639 ts->percentile_list, &ovals, &maxv,
640 &minv);
641 } else
642 len = 0;
643
644 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
645 if (i >= len) {
646 log_info(";0%%=0");
647 continue;
648 }
649 log_info(";%2.2f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
650 }
651 if (ovals)
652 free(ovals);
653
Jens Axboe079ad092007-02-20 13:58:20 +0100654 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
Jens Axboec6ae0a52006-06-12 11:04:44 +0200655 double p_of_agg;
656
657 p_of_agg = mean * 100 / (double) rs->agg[ddir];
Jens Axboe6d861442007-03-15 09:22:23 +0100658 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200659 } else
Jens Axboe6d861442007-03-15 09:22:23 +0100660 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200661}
662
Jens Axboe312b4af2011-10-13 13:11:42 +0200663#define FIO_TERSE_VERSION "3"
Jens Axboec6ae0a52006-06-12 11:04:44 +0200664
Jens Axboe756867b2007-03-06 15:19:24 +0100665static void show_thread_status_terse(struct thread_stat *ts,
Jens Axboec6ae0a52006-06-12 11:04:44 +0200666 struct group_run_stats *rs)
667{
Jens Axboe22708902007-03-06 17:05:32 +0100668 double io_u_dist[FIO_IO_U_MAP_NR];
Jens Axboe04a0fea2007-06-19 12:48:41 +0200669 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
670 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
Jens Axboec6ae0a52006-06-12 11:04:44 +0200671 double usr_cpu, sys_cpu;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200672 int i;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200673
David Nellans562c2d22010-09-23 08:38:17 +0200674 /* General Info */
Jens Axboe5e726d02011-10-14 08:08:10 +0200675 log_info("%s;%s;%s;%d;%d", FIO_TERSE_VERSION, fio_version_string,
676 ts->name, ts->groupid, ts->error);
David Nellans562c2d22010-09-23 08:38:17 +0200677 /* Log Read Status */
Jens Axboe756867b2007-03-06 15:19:24 +0100678 show_ddir_status_terse(ts, rs, 0);
David Nellans562c2d22010-09-23 08:38:17 +0200679 /* Log Write Status */
Jens Axboe756867b2007-03-06 15:19:24 +0100680 show_ddir_status_terse(ts, rs, 1);
Jens Axboec6ae0a52006-06-12 11:04:44 +0200681
David Nellans562c2d22010-09-23 08:38:17 +0200682 /* CPU Usage */
Jens Axboe756867b2007-03-06 15:19:24 +0100683 if (ts->total_run_time) {
684 double runt = (double) ts->total_run_time;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200685
Jens Axboe756867b2007-03-06 15:19:24 +0100686 usr_cpu = (double) ts->usr_time * 100 / runt;
687 sys_cpu = (double) ts->sys_time * 100 / runt;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200688 } else {
689 usr_cpu = 0;
690 sys_cpu = 0;
691 }
692
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100693 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf,
694 ts->minf);
Jens Axboe22708902007-03-06 17:05:32 +0100695
David Nellans562c2d22010-09-23 08:38:17 +0200696 /* Calc % distribution of IO depths, usecond, msecond latency */
Jens Axboe838bc702008-05-22 13:08:23 +0200697 stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist);
Jens Axboe04a0fea2007-06-19 12:48:41 +0200698 stat_calc_lat_u(ts, io_u_lat_u);
699 stat_calc_lat_m(ts, io_u_lat_m);
Jens Axboe22708902007-03-06 17:05:32 +0100700
David Nellans562c2d22010-09-23 08:38:17 +0200701 /* Only show fixed 7 I/O depth levels*/
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100702 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
703 io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
704 io_u_dist[4], io_u_dist[5], io_u_dist[6]);
Jens Axboe22708902007-03-06 17:05:32 +0100705
David Nellans562c2d22010-09-23 08:38:17 +0200706 /* Microsecond latency */
Jens Axboe04a0fea2007-06-19 12:48:41 +0200707 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
708 log_info(";%3.2f%%", io_u_lat_u[i]);
David Nellans562c2d22010-09-23 08:38:17 +0200709 /* Millisecond latency */
Jens Axboe04a0fea2007-06-19 12:48:41 +0200710 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
711 log_info(";%3.2f%%", io_u_lat_m[i]);
Jens Axboef2f788d2011-10-13 14:03:52 +0200712
713 /* disk util stats, if any */
714 show_disk_util(1);
715
David Nellans562c2d22010-09-23 08:38:17 +0200716 /* Additional output if continue_on_error set - default off*/
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200717 if (ts->continue_on_error)
718 log_info(";%lu;%d", ts->total_err_count, ts->first_error);
Jens Axboe04a0fea2007-06-19 12:48:41 +0200719 log_info("\n");
Jens Axboe22708902007-03-06 17:05:32 +0100720
David Nellans562c2d22010-09-23 08:38:17 +0200721 /* Additional output if description is set */
Jens Axboe4b0f2252011-10-13 15:03:25 +0200722 if (strlen(ts->description))
Jens Axboe6d861442007-03-15 09:22:23 +0100723 log_info(";%s", ts->description);
Jens Axboe756867b2007-03-06 15:19:24 +0100724}
725
Jens Axboe197574e2007-03-08 15:35:11 +0100726static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
Jens Axboe756867b2007-03-06 15:19:24 +0100727{
728 double mean, S;
729
Zheng Liue09231c2011-09-16 08:20:12 +0200730 if (src->samples == 0)
731 return;
732
Jens Axboe756867b2007-03-06 15:19:24 +0100733 dst->min_val = min(dst->min_val, src->min_val);
734 dst->max_val = max(dst->max_val, src->max_val);
Jens Axboe756867b2007-03-06 15:19:24 +0100735
736 /*
Yu-ju Hongcdcac5c2011-07-30 09:18:13 +0200737 * Compute new mean and S after the merge
738 * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
739 * #Parallel_algorithm>
Jens Axboe756867b2007-03-06 15:19:24 +0100740 */
741 if (nr == 1) {
Jens Axboe802ad4a2011-10-05 09:51:58 +0200742 mean = src->mean.u.f;
743 S = src->S.u.f;
Jens Axboe756867b2007-03-06 15:19:24 +0100744 } else {
Jens Axboe802ad4a2011-10-05 09:51:58 +0200745 double delta = src->mean.u.f - dst->mean.u.f;
Yu-ju Hongcdcac5c2011-07-30 09:18:13 +0200746
Jens Axboe802ad4a2011-10-05 09:51:58 +0200747 mean = ((src->mean.u.f * src->samples) +
748 (dst->mean.u.f * dst->samples)) /
Yu-ju Hongcdcac5c2011-07-30 09:18:13 +0200749 (dst->samples + src->samples);
750
Jens Axboe802ad4a2011-10-05 09:51:58 +0200751 S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
Yu-ju Hongcdcac5c2011-07-30 09:18:13 +0200752 (dst->samples * src->samples) /
753 (dst->samples + src->samples);
Jens Axboe756867b2007-03-06 15:19:24 +0100754 }
755
Yu-ju Hongcdcac5c2011-07-30 09:18:13 +0200756 dst->samples += src->samples;
Jens Axboe802ad4a2011-10-05 09:51:58 +0200757 dst->mean.u.f = mean;
758 dst->S.u.f = S;
Jens Axboe756867b2007-03-06 15:19:24 +0100759}
760
Jens Axboe37f0c1a2011-10-11 14:08:33 +0200761void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
762{
763 int i;
764
765 for (i = 0; i < 2; i++) {
766 if (dst->max_run[i] < src->max_run[i])
767 dst->max_run[i] = src->max_run[i];
768 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
769 dst->min_run[i] = src->min_run[i];
770 if (dst->max_bw[i] < src->max_bw[i])
771 dst->max_bw[i] = src->max_bw[i];
772 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
773 dst->min_bw[i] = src->min_bw[i];
774
775 dst->io_kb[i] += src->io_kb[i];
776 dst->agg[i] += src->agg[i];
777 }
778
779}
780
Jens Axboe5b9babb2011-10-10 12:14:30 +0200781void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
782{
783 int l, k;
784
785 for (l = 0; l <= DDIR_WRITE; l++) {
786 sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
787 sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
788 sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
789 sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
790
791 dst->io_bytes[l] += src->io_bytes[l];
792
793 if (dst->runtime[l] < src->runtime[l])
794 dst->runtime[l] = src->runtime[l];
795 }
796
797 dst->usr_time += src->usr_time;
798 dst->sys_time += src->sys_time;
799 dst->ctx += src->ctx;
800 dst->majf += src->majf;
801 dst->minf += src->minf;
802
803 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
804 dst->io_u_map[k] += src->io_u_map[k];
805 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
806 dst->io_u_submit[k] += src->io_u_submit[k];
807 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
808 dst->io_u_complete[k] += src->io_u_complete[k];
809 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
810 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
811 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
812 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
813
814 for (k = 0; k <= 2; k++) {
815 dst->total_io_u[k] += src->total_io_u[k];
816 dst->short_io_u[k] += src->short_io_u[k];
817 }
818
819 for (k = 0; k <= DDIR_WRITE; k++) {
820 int m;
821 for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
822 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
823 }
824
825 dst->total_run_time += src->total_run_time;
826 dst->total_submit += src->total_submit;
827 dst->total_complete += src->total_complete;
828}
829
Jens Axboe37f0c1a2011-10-11 14:08:33 +0200830void init_group_run_stat(struct group_run_stats *gs)
831{
832 memset(gs, 0, sizeof(*gs));
833 gs->min_bw[0] = gs->min_run[0] = ~0UL;
834 gs->min_bw[1] = gs->min_run[1] = ~0UL;
835}
836
837void init_thread_stat(struct thread_stat *ts)
838{
839 int j;
840
841 memset(ts, 0, sizeof(*ts));
842
843 for (j = 0; j <= DDIR_WRITE; j++) {
844 ts->lat_stat[j].min_val = -1UL;
845 ts->clat_stat[j].min_val = -1UL;
846 ts->slat_stat[j].min_val = -1UL;
847 ts->bw_stat[j].min_val = -1UL;
848 }
849 ts->groupid = -1;
850}
851
Jens Axboe3c39a372006-06-06 20:56:12 +0200852void show_run_stats(void)
853{
854 struct group_run_stats *runstats, *rs;
855 struct thread_data *td;
Jens Axboe756867b2007-03-06 15:19:24 +0100856 struct thread_stat *threadstats, *ts;
Jens Axboe5b9babb2011-10-10 12:14:30 +0200857 int i, j, nr_ts, last_ts, idx;
Jens Axboe90fef2d2009-07-17 22:33:32 +0200858 int kb_base_warned = 0;
Jens Axboe3c39a372006-06-06 20:56:12 +0200859
860 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
861
Jens Axboe37f0c1a2011-10-11 14:08:33 +0200862 for (i = 0; i < groupid + 1; i++)
863 init_group_run_stat(&runstats[i]);
Jens Axboe3c39a372006-06-06 20:56:12 +0200864
Jens Axboe756867b2007-03-06 15:19:24 +0100865 /*
866 * find out how many threads stats we need. if group reporting isn't
867 * enabled, it's one-per-td.
868 */
869 nr_ts = 0;
870 last_ts = -1;
Jens Axboe34572e22006-10-20 09:33:18 +0200871 for_each_td(td, i) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100872 if (!td->o.group_reporting) {
Jens Axboe756867b2007-03-06 15:19:24 +0100873 nr_ts++;
874 continue;
875 }
876 if (last_ts == td->groupid)
877 continue;
878
879 last_ts = td->groupid;
880 nr_ts++;
881 }
882
883 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
884
Jens Axboe37f0c1a2011-10-11 14:08:33 +0200885 for (i = 0; i < nr_ts; i++)
886 init_thread_stat(&threadstats[i]);
Jens Axboe756867b2007-03-06 15:19:24 +0100887
888 j = 0;
889 last_ts = -1;
Jens Axboe197574e2007-03-08 15:35:11 +0100890 idx = 0;
Jens Axboe756867b2007-03-06 15:19:24 +0100891 for_each_td(td, i) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100892 if (idx && (!td->o.group_reporting ||
893 (td->o.group_reporting && last_ts != td->groupid))) {
Jens Axboe7abd0e32007-03-12 15:24:43 +0100894 idx = 0;
895 j++;
896 }
897
898 last_ts = td->groupid;
899
Jens Axboe756867b2007-03-06 15:19:24 +0100900 ts = &threadstats[j];
901
Yu-ju Hong83349192011-08-13 00:53:44 +0200902 ts->clat_percentiles = td->o.clat_percentiles;
903 if (td->o.overwrite_plist)
Jens Axboe802ad4a2011-10-05 09:51:58 +0200904 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
Yu-ju Hong83349192011-08-13 00:53:44 +0200905 else
Jens Axboe802ad4a2011-10-05 09:51:58 +0200906 memcpy(ts->percentile_list, def_percentile_list, sizeof(def_percentile_list));
Yu-ju Hong83349192011-08-13 00:53:44 +0200907
Jens Axboe197574e2007-03-08 15:35:11 +0100908 idx++;
Jens Axboe6586ee82007-03-06 19:46:09 +0100909 ts->members++;
Jens Axboe756867b2007-03-06 15:19:24 +0100910
Jens Axboe7abd0e32007-03-12 15:24:43 +0100911 if (ts->groupid == -1) {
Jens Axboe2dc84ba2007-03-06 15:46:33 +0100912 /*
913 * These are per-group shared already
914 */
Jens Axboef6bb5b82011-10-03 12:21:25 +0200915 strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE);
Jens Axboea64e88d2011-10-03 14:20:01 +0200916 if (td->o.description)
917 strncpy(ts->description, td->o.description,
918 FIO_JOBNAME_SIZE);
919 else
920 memset(ts->description, 0, FIO_JOBNAME_SIZE);
921
Jens Axboe756867b2007-03-06 15:19:24 +0100922 ts->groupid = td->groupid;
Jens Axboe2dc84ba2007-03-06 15:46:33 +0100923
924 /*
925 * first pid in group, not very useful...
926 */
Jens Axboe756867b2007-03-06 15:19:24 +0100927 ts->pid = td->pid;
Jens Axboe90fef2d2009-07-17 22:33:32 +0200928
929 ts->kb_base = td->o.kb_base;
930 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
931 log_info("fio: kb_base differs for jobs in group, using"
932 " %u as the base\n", ts->kb_base);
933 kb_base_warned = 1;
Jens Axboe2dc84ba2007-03-06 15:46:33 +0100934 }
935
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200936 ts->continue_on_error = td->o.continue_on_error;
937 ts->total_err_count += td->total_err_count;
938 ts->first_error = td->first_error;
939 if (!ts->error) {
940 if (!td->error && td->o.continue_on_error &&
941 td->first_error) {
942 ts->error = td->first_error;
Jens Axboef6bb5b82011-10-03 12:21:25 +0200943 strcpy(ts->verror, td->verror);
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200944 } else if (td->error) {
945 ts->error = td->error;
Jens Axboef6bb5b82011-10-03 12:21:25 +0200946 strcpy(ts->verror, td->verror);
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200947 }
Jens Axboe756867b2007-03-06 15:19:24 +0100948 }
949
Jens Axboe5b9babb2011-10-10 12:14:30 +0200950 sum_thread_stats(ts, &td->ts, idx);
Jens Axboe756867b2007-03-06 15:19:24 +0100951 }
952
953 for (i = 0; i < nr_ts; i++) {
Jens Axboe94370ac2007-03-08 15:28:10 +0100954 unsigned long long bw;
Jens Axboe3c39a372006-06-06 20:56:12 +0200955
Jens Axboe756867b2007-03-06 15:19:24 +0100956 ts = &threadstats[i];
957 rs = &runstats[ts->groupid];
Jens Axboe90fef2d2009-07-17 22:33:32 +0200958 rs->kb_base = ts->kb_base;
Jens Axboe3c39a372006-06-06 20:56:12 +0200959
Jens Axboede64df02007-03-08 19:09:49 +0100960 for (j = 0; j <= DDIR_WRITE; j++) {
Jens Axboe94370ac2007-03-08 15:28:10 +0100961 if (!ts->runtime[j])
962 continue;
963 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
964 rs->min_run[j] = ts->runtime[j];
965 if (ts->runtime[j] > rs->max_run[j])
966 rs->max_run[j] = ts->runtime[j];
Jens Axboe3c39a372006-06-06 20:56:12 +0200967
Jens Axboe94370ac2007-03-08 15:28:10 +0100968 bw = 0;
Jens Axboe8879fd12009-04-20 10:06:02 +0200969 if (ts->runtime[j]) {
970 unsigned long runt;
971
Jens Axboe90fef2d2009-07-17 22:33:32 +0200972 runt = ts->runtime[j];
Jens Axboe8879fd12009-04-20 10:06:02 +0200973 bw = ts->io_bytes[j] / runt;
974 }
Jens Axboe94370ac2007-03-08 15:28:10 +0100975 if (bw < rs->min_bw[j])
976 rs->min_bw[j] = bw;
977 if (bw > rs->max_bw[j])
978 rs->max_bw[j] = bw;
Jens Axboe3c39a372006-06-06 20:56:12 +0200979
Jens Axboe90fef2d2009-07-17 22:33:32 +0200980 rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
Jens Axboe94370ac2007-03-08 15:28:10 +0100981 }
Jens Axboe3c39a372006-06-06 20:56:12 +0200982 }
983
984 for (i = 0; i < groupid + 1; i++) {
Jens Axboe8879fd12009-04-20 10:06:02 +0200985 unsigned long max_run[2];
986
Jens Axboe3c39a372006-06-06 20:56:12 +0200987 rs = &runstats[i];
Jens Axboe90fef2d2009-07-17 22:33:32 +0200988 max_run[0] = rs->max_run[0];
989 max_run[1] = rs->max_run[1];
Jens Axboe3c39a372006-06-06 20:56:12 +0200990
991 if (rs->max_run[0])
Jens Axboe4cf1abc2010-06-25 14:33:37 +0200992 rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0];
Jens Axboe3c39a372006-06-06 20:56:12 +0200993 if (rs->max_run[1])
Jens Axboe4cf1abc2010-06-25 14:33:37 +0200994 rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1];
Jens Axboe3c39a372006-06-06 20:56:12 +0200995 }
996
997 /*
998 * don't overwrite last signal output
999 */
Jens Axboec6ae0a52006-06-12 11:04:44 +02001000 if (!terse_output)
Jens Axboe4ceb30d2010-02-24 09:19:14 +01001001 log_info("\n");
Jens Axboe3c39a372006-06-06 20:56:12 +02001002
Jens Axboe756867b2007-03-06 15:19:24 +01001003 for (i = 0; i < nr_ts; i++) {
1004 ts = &threadstats[i];
1005 rs = &runstats[ts->groupid];
Jens Axboe3c39a372006-06-06 20:56:12 +02001006
Jens Axboea64e88d2011-10-03 14:20:01 +02001007 if (is_backend)
1008 fio_server_send_ts(ts, rs);
1009 else if (terse_output)
Jens Axboe756867b2007-03-06 15:19:24 +01001010 show_thread_status_terse(ts, rs);
Jens Axboec6ae0a52006-06-12 11:04:44 +02001011 else
Jens Axboe756867b2007-03-06 15:19:24 +01001012 show_thread_status(ts, rs);
Jens Axboe3c39a372006-06-06 20:56:12 +02001013 }
1014
Jens Axboe72c27ff2011-10-16 11:50:31 +02001015 for (i = 0; i < groupid + 1; i++) {
1016 rs = &runstats[i];
Jens Axboea64e88d2011-10-03 14:20:01 +02001017
Jens Axboe72c27ff2011-10-16 11:50:31 +02001018 rs->groupid = i;
Jens Axboed09a64a2011-10-13 11:38:56 +02001019 if (is_backend)
Jens Axboe72c27ff2011-10-16 11:50:31 +02001020 fio_server_send_gs(rs);
1021 else if (!terse_output)
1022 show_group_stats(rs);
Jens Axboec6ae0a52006-06-12 11:04:44 +02001023 }
Jens Axboeeecf2722006-10-20 14:00:36 +02001024
Jens Axboe72c27ff2011-10-16 11:50:31 +02001025 if (is_backend)
1026 fio_server_send_du();
1027 else if (!terse_output)
1028 show_disk_util(0);
1029
1030 free_disk_util();
1031
Jens Axboeeecf2722006-10-20 14:00:36 +02001032 free(runstats);
Jens Axboe756867b2007-03-06 15:19:24 +01001033 free(threadstats);
Jens Axboe3c39a372006-06-06 20:56:12 +02001034}
1035
Jens Axboe68704082007-01-10 19:56:37 +01001036static inline void add_stat_sample(struct io_stat *is, unsigned long data)
Jens Axboe3c39a372006-06-06 20:56:12 +02001037{
Jens Axboe68704082007-01-10 19:56:37 +01001038 double val = data;
Jens Axboe6660cc62007-03-06 15:48:38 +01001039 double delta;
Jens Axboe3c39a372006-06-06 20:56:12 +02001040
Jens Axboe68704082007-01-10 19:56:37 +01001041 if (data > is->max_val)
1042 is->max_val = data;
1043 if (data < is->min_val)
1044 is->min_val = data;
1045
Jens Axboe802ad4a2011-10-05 09:51:58 +02001046 delta = val - is->mean.u.f;
Jens Axboeef11d732007-03-29 15:36:29 +02001047 if (delta) {
Jens Axboe802ad4a2011-10-05 09:51:58 +02001048 is->mean.u.f += delta / (is->samples + 1.0);
1049 is->S.u.f += delta * (val - is->mean.u.f);
Jens Axboeef11d732007-03-29 15:36:29 +02001050 }
Jens Axboe68704082007-01-10 19:56:37 +01001051
Jens Axboe3c39a372006-06-06 20:56:12 +02001052 is->samples++;
1053}
1054
Jens Axboebb3884d2007-01-17 17:23:11 +11001055static void __add_log_sample(struct io_log *iolog, unsigned long val,
Jens Axboe306ddc92009-05-18 13:08:12 +02001056 enum fio_ddir ddir, unsigned int bs,
Jens Axboe2b13e712011-01-19 14:04:16 -07001057 unsigned long t)
Jens Axboe3c39a372006-06-06 20:56:12 +02001058{
Jens Axboe306ddc92009-05-18 13:08:12 +02001059 const int nr_samples = iolog->nr_samples;
1060
Jens Axboe3c39a372006-06-06 20:56:12 +02001061 if (iolog->nr_samples == iolog->max_samples) {
1062 int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
1063
1064 iolog->log = realloc(iolog->log, new_size);
1065 iolog->max_samples <<= 1;
1066 }
1067
Jens Axboe306ddc92009-05-18 13:08:12 +02001068 iolog->log[nr_samples].val = val;
Jens Axboe2b13e712011-01-19 14:04:16 -07001069 iolog->log[nr_samples].time = t;
Jens Axboe306ddc92009-05-18 13:08:12 +02001070 iolog->log[nr_samples].ddir = ddir;
1071 iolog->log[nr_samples].bs = bs;
Jens Axboe3c39a372006-06-06 20:56:12 +02001072 iolog->nr_samples++;
1073}
1074
Jens Axboebb3884d2007-01-17 17:23:11 +11001075static void add_log_sample(struct thread_data *td, struct io_log *iolog,
Jens Axboe306ddc92009-05-18 13:08:12 +02001076 unsigned long val, enum fio_ddir ddir,
1077 unsigned int bs)
Jens Axboebb3884d2007-01-17 17:23:11 +11001078{
Jens Axboeff58fce2010-08-25 12:02:08 +02001079 if (!ddir_rw(ddir))
1080 return;
1081
Jens Axboe306ddc92009-05-18 13:08:12 +02001082 __add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch));
Jens Axboebb3884d2007-01-17 17:23:11 +11001083}
1084
Jens Axboe306ddc92009-05-18 13:08:12 +02001085void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
Jens Axboebb3884d2007-01-17 17:23:11 +11001086{
Jens Axboeff58fce2010-08-25 12:02:08 +02001087 struct io_log *iolog;
Jens Axboebb3884d2007-01-17 17:23:11 +11001088
Jens Axboeff58fce2010-08-25 12:02:08 +02001089 if (!ddir_rw(ddir))
1090 return;
1091
1092 iolog = agg_io_log[ddir];
Jens Axboe306ddc92009-05-18 13:08:12 +02001093 __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis());
Jens Axboebb3884d2007-01-17 17:23:11 +11001094}
1095
Yu-ju Hong83349192011-08-13 00:53:44 +02001096static void add_clat_percentile_sample(struct thread_stat *ts,
1097 unsigned long usec, enum fio_ddir ddir)
1098{
1099 unsigned int idx = plat_val_to_idx(usec);
1100 assert(idx < FIO_IO_U_PLAT_NR);
1101
1102 ts->io_u_plat[ddir][idx]++;
1103}
1104
Jens Axboe1e97cce2006-12-05 11:44:16 +01001105void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
Jens Axboe306ddc92009-05-18 13:08:12 +02001106 unsigned long usec, unsigned int bs)
Jens Axboe3c39a372006-06-06 20:56:12 +02001107{
Jens Axboe756867b2007-03-06 15:19:24 +01001108 struct thread_stat *ts = &td->ts;
Jens Axboe3c39a372006-06-06 20:56:12 +02001109
Jens Axboeff58fce2010-08-25 12:02:08 +02001110 if (!ddir_rw(ddir))
1111 return;
1112
Jens Axboed85f5112007-06-18 09:41:23 +02001113 add_stat_sample(&ts->clat_stat[ddir], usec);
Jens Axboe079ad092007-02-20 13:58:20 +01001114
Jens Axboe7b9f7332011-10-03 10:06:44 +02001115 if (td->clat_log)
1116 add_log_sample(td, td->clat_log, usec, ddir, bs);
Yu-ju Hong83349192011-08-13 00:53:44 +02001117
1118 if (ts->clat_percentiles)
1119 add_clat_percentile_sample(ts, usec, ddir);
Jens Axboe3c39a372006-06-06 20:56:12 +02001120}
1121
Jens Axboe1e97cce2006-12-05 11:44:16 +01001122void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
Jens Axboe306ddc92009-05-18 13:08:12 +02001123 unsigned long usec, unsigned int bs)
Jens Axboe3c39a372006-06-06 20:56:12 +02001124{
Jens Axboe756867b2007-03-06 15:19:24 +01001125 struct thread_stat *ts = &td->ts;
Jens Axboe3c39a372006-06-06 20:56:12 +02001126
Jens Axboeff58fce2010-08-25 12:02:08 +02001127 if (!ddir_rw(ddir))
1128 return;
1129
Jens Axboed85f5112007-06-18 09:41:23 +02001130 add_stat_sample(&ts->slat_stat[ddir], usec);
Jens Axboe079ad092007-02-20 13:58:20 +01001131
Jens Axboe7b9f7332011-10-03 10:06:44 +02001132 if (td->slat_log)
1133 add_log_sample(td, td->slat_log, usec, ddir, bs);
Jens Axboe3c39a372006-06-06 20:56:12 +02001134}
1135
Jens Axboe02af0982010-06-24 09:59:34 +02001136void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
1137 unsigned long usec, unsigned int bs)
1138{
1139 struct thread_stat *ts = &td->ts;
1140
Jens Axboeff58fce2010-08-25 12:02:08 +02001141 if (!ddir_rw(ddir))
1142 return;
1143
Jens Axboe02af0982010-06-24 09:59:34 +02001144 add_stat_sample(&ts->lat_stat[ddir], usec);
1145
Jens Axboe7b9f7332011-10-03 10:06:44 +02001146 if (td->lat_log)
1147 add_log_sample(td, td->lat_log, usec, ddir, bs);
Jens Axboe02af0982010-06-24 09:59:34 +02001148}
1149
Jens Axboe306ddc92009-05-18 13:08:12 +02001150void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
Jens Axboe1e97cce2006-12-05 11:44:16 +01001151 struct timeval *t)
Jens Axboe3c39a372006-06-06 20:56:12 +02001152{
Jens Axboe756867b2007-03-06 15:19:24 +01001153 struct thread_stat *ts = &td->ts;
Jens Axboeff58fce2010-08-25 12:02:08 +02001154 unsigned long spent, rate;
Jens Axboe3c39a372006-06-06 20:56:12 +02001155
Jens Axboeff58fce2010-08-25 12:02:08 +02001156 if (!ddir_rw(ddir))
1157 return;
1158
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001159 spent = mtime_since(&td->bw_sample_time, t);
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001160 if (spent < td->o.bw_avg_time)
Jens Axboe3c39a372006-06-06 20:56:12 +02001161 return;
1162
Jens Axboef0505a12011-10-03 12:12:03 +02001163 rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) *
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001164 1000 / spent / 1024;
Jens Axboe079ad092007-02-20 13:58:20 +01001165 add_stat_sample(&ts->bw_stat[ddir], rate);
Jens Axboe3c39a372006-06-06 20:56:12 +02001166
Jens Axboe7b9f7332011-10-03 10:06:44 +02001167 if (td->bw_log)
1168 add_log_sample(td, td->bw_log, rate, ddir, bs);
Jens Axboe3c39a372006-06-06 20:56:12 +02001169
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001170 fio_gettime(&td->bw_sample_time, NULL);
Jens Axboef0505a12011-10-03 12:12:03 +02001171 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
Jens Axboe3c39a372006-06-06 20:56:12 +02001172}
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001173
1174void add_iops_sample(struct thread_data *td, enum fio_ddir ddir,
1175 struct timeval *t)
1176{
1177 struct thread_stat *ts = &td->ts;
1178 unsigned long spent, iops;
1179
1180 if (!ddir_rw(ddir))
1181 return;
1182
1183 spent = mtime_since(&td->iops_sample_time, t);
1184 if (spent < td->o.iops_avg_time)
1185 return;
1186
1187 iops = ((td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]) * 1000) / spent;
1188
1189 add_stat_sample(&ts->iops_stat[ddir], iops);
1190
1191 if (td->iops_log) {
1192 assert(iops);
1193 add_log_sample(td, td->iops_log, iops, ddir, 0);
1194 }
1195
1196 fio_gettime(&td->iops_sample_time, NULL);
1197 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
1198}