Extend --readonly
[fio.git] / stat.c
CommitLineData
3c39a379
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1#include <stdio.h>
2#include <string.h>
3#include <sys/time.h>
4#include <sys/types.h>
5c4e1dbc 5#include <sys/stat.h>
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6#include <dirent.h>
7#include <libgen.h>
8#include <math.h>
9
10#include "fio.h"
3c39a379 11
dbe1125e 12/*
34403fb1 13 * Cheesy number->string conversion, complete with carry rounding error.
dbe1125e 14 */
b3605062 15static char *num2str(unsigned long num, int maxlen, int base, int pow2)
dbe1125e 16{
b3605062
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17 char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
18 unsigned int thousand;
dbe1125e
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19 char *buf;
20 int i;
21
b3605062
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22 if (pow2)
23 thousand = 1024;
24 else
25 thousand = 1000;
26
dbe1125e
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27 buf = malloc(128);
28
29 for (i = 0; base > 1; i++)
30 base /= thousand;
31
32 do {
33 int len, carry = 0;
34
35 len = sprintf(buf, "%'lu", num);
36 if (len <= maxlen) {
b3605062
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37 if (i >= 1) {
38 buf[len] = postfix[i];
39 buf[len + 1] = '\0';
40 }
dbe1125e
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41 return buf;
42 }
43
44 if ((num % thousand) >= (thousand / 2))
45 carry = 1;
46
47 num /= thousand;
48 num += carry;
49 i++;
f3502ba2 50 } while (i <= 5);
dbe1125e
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51
52 return buf;
53}
54
3c39a379
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55void update_rusage_stat(struct thread_data *td)
56{
756867bd 57 struct thread_stat *ts = &td->ts;
3c39a379 58
079ad09b
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59 getrusage(RUSAGE_SELF, &ts->ru_end);
60
61 ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime);
62 ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime);
63 ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw);
e7823a94
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64 ts->minf += ts->ru_end.ru_minflt - ts->ru_start.ru_minflt;
65 ts->majf += ts->ru_end.ru_majflt - ts->ru_start.ru_majflt;
3c39a379 66
079ad09b 67 memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end));
3c39a379
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68}
69
70static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
71 double *mean, double *dev)
72{
68704084 73 double n = is->samples;
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74
75 if (is->samples == 0)
76 return 0;
77
78 *min = is->min_val;
79 *max = is->max_val;
80
81 n = (double) is->samples;
68704084 82 *mean = is->mean;
e6d276f2 83
68704084
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84 if (n > 1.0)
85 *dev = sqrt(is->S / (n - 1.0));
ef9c5c40 86 else
4b43f54e 87 *dev = 0;
ef9c5c40 88
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89 return 1;
90}
91
92static void show_group_stats(struct group_run_stats *rs, int id)
93{
dbe1125e
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94 char *p1, *p2, *p3, *p4;
95 const char *ddir_str[] = { " READ", " WRITE" };
96 int i;
97
6d86144d 98 log_info("\nRun status group %d (all jobs):\n", id);
3c39a379 99
dbe1125e
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100 for (i = 0; i <= DDIR_WRITE; i++) {
101 if (!rs->max_run[i])
102 continue;
103
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104 p1 = num2str(rs->io_kb[i], 6, 1000, 1);
105 p2 = num2str(rs->agg[i], 6, 1000, 1);
106 p3 = num2str(rs->min_bw[i], 6, 1000, 1);
107 p4 = num2str(rs->max_bw[i], 6, 1000, 1);
dbe1125e 108
6d86144d 109 log_info("%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[i], rs->max_run[i]);
dbe1125e
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110
111 free(p1);
112 free(p2);
113 free(p3);
114 free(p4);
115 }
3c39a379
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116}
117
b3605062
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118#define ts_total_io_u(ts) \
119 ((ts)->total_io_u[0] + (ts)->total_io_u[1])
120
2270890c
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121static void stat_calc_dist(struct thread_stat *ts, double *io_u_dist)
122{
123 int i;
124
125 /*
126 * Do depth distribution calculations
127 */
128 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
b3605062 129 io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts_total_io_u(ts);
2270890c 130 io_u_dist[i] *= 100.0;
d0f62ba3
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131 if (io_u_dist[i] < 0.1 && ts->io_u_map[i])
132 io_u_dist[i] = 0.1;
2270890c
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133 }
134}
135
04a0feae
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136static void stat_calc_lat(struct thread_stat *ts, double *dst,
137 unsigned int *src, int nr)
2270890c
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138{
139 int i;
140
141 /*
142 * Do latency distribution calculations
143 */
04a0feae
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144 for (i = 0; i < nr; i++) {
145 dst[i] = (double) src[i] / (double) ts_total_io_u(ts);
146 dst[i] *= 100.0;
147 if (dst[i] < 0.01 && src[i])
148 dst[i] = 0.01;
2270890c
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149 }
150}
151
04a0feae
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152static void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
153{
154 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
155}
156
157static void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
158{
159 stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
160}
161
ea2accc5
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162static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean,
163 double *dev)
164{
165 if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) {
166 *min /= 1000;
167 *max /= 1000;
168 *mean /= 1000.0;
169 *dev /= 1000.0;
170 return 0;
171 }
172
173 return 1;
174}
175
756867bd 176static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
3c39a379
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177 int ddir)
178{
3c9b60c1 179 const char *ddir_str[] = { "read ", "write" };
3c39a379 180 unsigned long min, max;
b3605062 181 unsigned long long bw, iops;
3c39a379 182 double mean, dev;
b3605062 183 char *io_p, *bw_p, *iops_p;
3c39a379 184
756867bd 185 if (!ts->runtime[ddir])
3c39a379
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186 return;
187
756867bd 188 bw = ts->io_bytes[ddir] / ts->runtime[ddir];
b3605062
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189 iops = (1000 * ts->total_io_u[ddir]) / ts->runtime[ddir];
190 io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1000, 1);
191 bw_p = num2str(bw, 6, 1000, 1);
192 iops_p = num2str(iops, 6, 1, 0);
dbe1125e 193
6d86144d 194 log_info(" %s: io=%siB, bw=%siB/s, iops=%s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, iops_p, ts->runtime[ddir]);
dbe1125e
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195
196 free(io_p);
197 free(bw_p);
b3605062 198 free(iops_p);
3c39a379 199
d85f5118
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200 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
201 const char *base = "(usec)";
d9309cb1 202 char *minp, *maxp;
d85f5118 203
ea2accc5 204 if (!usec_to_msec(&min, &max, &mean, &dev))
d85f5118 205 base = "(msec)";
ea2accc5 206
d9309cb1
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207 minp = num2str(min, 6, 1, 0);
208 maxp = num2str(max, 6, 1, 0);
209
210 log_info(" slat %s: min=%s, max=%s, avg=%5.02f, stdev=%5.02f\n", base, minp, maxp, mean, dev);
211
212 free(minp);
213 free(maxp);
d85f5118
JA
214 }
215 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
216 const char *base = "(usec)";
d9309cb1 217 char *minp, *maxp;
d85f5118 218
ea2accc5
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219 if (!usec_to_msec(&min, &max, &mean, &dev))
220 base = "(msec)";
221
d9309cb1
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222 minp = num2str(min, 6, 1, 0);
223 maxp = num2str(max, 6, 1, 0);
224
225 log_info(" clat %s: min=%s, max=%s, avg=%5.02f, stdev=%5.02f\n", base, minp, maxp, mean, dev);
226
227 free(minp);
228 free(maxp);
d85f5118 229 }
079ad09b 230 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
3c39a379
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231 double p_of_agg;
232
233 p_of_agg = mean * 100 / (double) rs->agg[ddir];
6d86144d 234 log_info(" bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev);
3c39a379
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235 }
236}
237
04a0feae
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238static void show_lat(double *io_u_lat, int nr, const char **ranges,
239 const char *msg)
240{
241 int new_line = 1, i, line = 0;
242
243 for (i = 0; i < nr; i++) {
244 if (io_u_lat[i] <= 0.0)
245 continue;
246 if (new_line) {
4539ed73
JA
247 if (line)
248 log_info("\n");
04a0feae
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249 log_info(" lat (%s): ", msg);
250 new_line = 0;
251 line = 0;
252 }
253 if (line)
254 log_info(", ");
255 log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
256 line++;
257 if (line == 5)
258 new_line = 1;
259 }
04a0feae
JA
260}
261
262static void show_lat_u(double *io_u_lat_u)
263{
264 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
265 "250=", "500=", "750=", "1000=", };
266
267 show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
268}
269
270static void show_lat_m(double *io_u_lat_m)
271{
272 const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
273 "250=", "500=", "750=", "1000=", "2000=",
274 ">=2000=", };
275
276 show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
277}
278
279static void show_latencies(double *io_u_lat_u, double *io_u_lat_m)
280{
281 show_lat_u(io_u_lat_u);
4539ed73 282 log_info("\n");
04a0feae
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283 show_lat_m(io_u_lat_m);
284 log_info("\n");
285}
286
756867bd 287static void show_thread_status(struct thread_stat *ts,
3c39a379
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288 struct group_run_stats *rs)
289{
290 double usr_cpu, sys_cpu;
69008999 291 unsigned long runtime;
71619dc2 292 double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae
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293 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
294 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
3c39a379 295
756867bd 296 if (!(ts->io_bytes[0] + ts->io_bytes[1]))
3c39a379
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297 return;
298
756867bd 299 if (!ts->error)
6d86144d 300 log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->pid);
6d663077 301 else
6d86144d 302 log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->verror, ts->pid);
3c39a379 303
7bdce1bd 304 if (ts->description)
6d86144d 305 log_info(" Description : [%s]\n", ts->description);
7bdce1bd 306
756867bd
JA
307 if (ts->io_bytes[DDIR_READ])
308 show_ddir_status(rs, ts, DDIR_READ);
309 if (ts->io_bytes[DDIR_WRITE])
310 show_ddir_status(rs, ts, DDIR_WRITE);
3c39a379 311
756867bd 312 runtime = ts->total_run_time;
69008999 313 if (runtime) {
1e97cce9 314 double runt = (double) runtime;
3c39a379 315
756867bd
JA
316 usr_cpu = (double) ts->usr_time * 100 / runt;
317 sys_cpu = (double) ts->sys_time * 100 / runt;
3c39a379
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318 } else {
319 usr_cpu = 0;
320 sys_cpu = 0;
321 }
322
e7823a94 323 log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu, minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf);
71619dc2 324
2270890c 325 stat_calc_dist(ts, io_u_dist);
04a0feae
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326 stat_calc_lat_u(ts, io_u_lat_u);
327 stat_calc_lat_m(ts, io_u_lat_m);
71619dc2 328
6d86144d 329 log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]);
30061b97 330 log_info(" issued r/w: total=%lu/%lu, short=%lu/%lu\n", ts->total_io_u[0], ts->total_io_u[1], ts->short_io_u[0], ts->short_io_u[1]);
61697c37 331
04a0feae 332 show_latencies(io_u_lat_u, io_u_lat_m);
3c39a379
JA
333}
334
756867bd 335static void show_ddir_status_terse(struct thread_stat *ts,
c6ae0a5b
JA
336 struct group_run_stats *rs, int ddir)
337{
338 unsigned long min, max;
339 unsigned long long bw;
340 double mean, dev;
341
342 bw = 0;
756867bd
JA
343 if (ts->runtime[ddir])
344 bw = ts->io_bytes[ddir] / ts->runtime[ddir];
c6ae0a5b 345
6d86144d 346 log_info(";%llu;%llu;%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]);
c6ae0a5b 347
079ad09b 348 if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
6d86144d 349 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b 350 else
6d86144d 351 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b 352
079ad09b 353 if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
6d86144d 354 log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b 355 else
6d86144d 356 log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b 357
079ad09b 358 if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
c6ae0a5b
JA
359 double p_of_agg;
360
361 p_of_agg = mean * 100 / (double) rs->agg[ddir];
6d86144d 362 log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
c6ae0a5b 363 } else
6d86144d 364 log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
c6ae0a5b
JA
365}
366
367
756867bd 368static void show_thread_status_terse(struct thread_stat *ts,
c6ae0a5b
JA
369 struct group_run_stats *rs)
370{
2270890c 371 double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae
JA
372 double io_u_lat_u[FIO_IO_U_LAT_U_NR];
373 double io_u_lat_m[FIO_IO_U_LAT_M_NR];
c6ae0a5b 374 double usr_cpu, sys_cpu;
04a0feae 375 int i;
c6ae0a5b 376
6d86144d 377 log_info("%s;%d;%d", ts->name, ts->groupid, ts->error);
c6ae0a5b 378
756867bd
JA
379 show_ddir_status_terse(ts, rs, 0);
380 show_ddir_status_terse(ts, rs, 1);
c6ae0a5b 381
756867bd
JA
382 if (ts->total_run_time) {
383 double runt = (double) ts->total_run_time;
c6ae0a5b 384
756867bd
JA
385 usr_cpu = (double) ts->usr_time * 100 / runt;
386 sys_cpu = (double) ts->sys_time * 100 / runt;
c6ae0a5b
JA
387 } else {
388 usr_cpu = 0;
389 sys_cpu = 0;
390 }
391
e7823a94 392 log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf);
2270890c
JA
393
394 stat_calc_dist(ts, io_u_dist);
04a0feae
JA
395 stat_calc_lat_u(ts, io_u_lat_u);
396 stat_calc_lat_m(ts, io_u_lat_m);
2270890c 397
6d86144d 398 log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]);
2270890c 399
04a0feae
JA
400 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
401 log_info(";%3.2f%%", io_u_lat_u[i]);
402 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
403 log_info(";%3.2f%%", io_u_lat_m[i]);
404 log_info("\n");
2270890c
JA
405
406 if (ts->description)
6d86144d 407 log_info(";%s", ts->description);
2270890c 408
6d86144d 409 log_info("\n");
756867bd
JA
410}
411
197574e4 412static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
756867bd
JA
413{
414 double mean, S;
415
416 dst->min_val = min(dst->min_val, src->min_val);
417 dst->max_val = max(dst->max_val, src->max_val);
418 dst->samples += src->samples;
419
420 /*
421 * Needs a new method for calculating stddev, we cannot just
422 * average them we do below for nr > 1
423 */
424 if (nr == 1) {
425 mean = src->mean;
426 S = src->S;
427 } else {
c39cced6
JA
428 mean = ((src->mean * (double) (nr - 1)) + dst->mean) / ((double) nr);
429 S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr);
756867bd
JA
430 }
431
432 dst->mean = mean;
433 dst->S = S;
434}
435
3c39a379
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436void show_run_stats(void)
437{
438 struct group_run_stats *runstats, *rs;
439 struct thread_data *td;
756867bd 440 struct thread_stat *threadstats, *ts;
197574e4 441 int i, j, k, l, nr_ts, last_ts, idx;
3c39a379
JA
442
443 runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
444
445 for (i = 0; i < groupid + 1; i++) {
446 rs = &runstats[i];
447
448 memset(rs, 0, sizeof(*rs));
449 rs->min_bw[0] = rs->min_run[0] = ~0UL;
450 rs->min_bw[1] = rs->min_run[1] = ~0UL;
451 }
452
756867bd
JA
453 /*
454 * find out how many threads stats we need. if group reporting isn't
455 * enabled, it's one-per-td.
456 */
457 nr_ts = 0;
458 last_ts = -1;
459 for_each_td(td, i) {
2dc1bbeb 460 if (!td->o.group_reporting) {
756867bd
JA
461 nr_ts++;
462 continue;
463 }
464 if (last_ts == td->groupid)
465 continue;
466
467 last_ts = td->groupid;
468 nr_ts++;
469 }
470
471 threadstats = malloc(nr_ts * sizeof(struct thread_stat));
472
473 for (i = 0; i < nr_ts; i++) {
474 ts = &threadstats[i];
475
476 memset(ts, 0, sizeof(*ts));
de64df05 477 for (j = 0; j <= DDIR_WRITE; j++) {
197574e4
JA
478 ts->clat_stat[j].min_val = -1UL;
479 ts->slat_stat[j].min_val = -1UL;
480 ts->bw_stat[j].min_val = -1UL;
481 }
7abd0e3a 482 ts->groupid = -1;
756867bd
JA
483 }
484
485 j = 0;
486 last_ts = -1;
197574e4 487 idx = 0;
34572e28 488 for_each_td(td, i) {
2dc1bbeb
JA
489 if (idx && (!td->o.group_reporting ||
490 (td->o.group_reporting && last_ts != td->groupid))) {
7abd0e3a
JA
491 idx = 0;
492 j++;
493 }
494
495 last_ts = td->groupid;
496
756867bd
JA
497 ts = &threadstats[j];
498
197574e4 499 idx++;
6586ee89 500 ts->members++;
756867bd 501
7abd0e3a 502 if (ts->groupid == -1) {
2dc84ba7
JA
503 /*
504 * These are per-group shared already
505 */
2dc1bbeb
JA
506 ts->name = td->o.name;
507 ts->description = td->o.description;
756867bd 508 ts->groupid = td->groupid;
2dc84ba7
JA
509
510 /*
511 * first pid in group, not very useful...
512 */
756867bd 513 ts->pid = td->pid;
2dc84ba7
JA
514 }
515
516 if (td->error && !ts->error) {
517 ts->error = td->error;
756867bd
JA
518 ts->verror = td->verror;
519 }
520
de64df05 521 for (l = 0; l <= DDIR_WRITE; l++) {
197574e4
JA
522 sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx);
523 sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx);
524 sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx);
756867bd 525
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526 ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l];
527 ts->io_bytes[l] += td->ts.io_bytes[l];
528
529 if (ts->runtime[l] < td->ts.runtime[l])
530 ts->runtime[l] = td->ts.runtime[l];
531 }
756867bd
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532
533 ts->usr_time += td->ts.usr_time;
534 ts->sys_time += td->ts.sys_time;
535 ts->ctx += td->ts.ctx;
e7823a94
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536 ts->majf += td->ts.majf;
537 ts->minf += td->ts.minf;
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538
539 for (k = 0; k < FIO_IO_U_MAP_NR; k++)
540 ts->io_u_map[k] += td->ts.io_u_map[k];
04a0feae
JA
541 for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
542 ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k];
543 for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
544 ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k];
545
756867bd 546
30061b97 547 for (k = 0; k <= DDIR_WRITE; k++) {
b3605062 548 ts->total_io_u[k] += td->ts.total_io_u[k];
30061b97
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549 ts->short_io_u[k] += td->ts.short_io_u[k];
550 }
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551
552 ts->total_run_time += td->ts.total_run_time;
756867bd
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553 }
554
555 for (i = 0; i < nr_ts; i++) {
94370ac4 556 unsigned long long bw;
3c39a379 557
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558 ts = &threadstats[i];
559 rs = &runstats[ts->groupid];
3c39a379 560
de64df05 561 for (j = 0; j <= DDIR_WRITE; j++) {
94370ac4
JA
562 if (!ts->runtime[j])
563 continue;
564 if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
565 rs->min_run[j] = ts->runtime[j];
566 if (ts->runtime[j] > rs->max_run[j])
567 rs->max_run[j] = ts->runtime[j];
568
569 bw = 0;
570 if (ts->runtime[j])
571 bw = ts->io_bytes[j] / (unsigned long long) ts->runtime[j];
572 if (bw < rs->min_bw[j])
573 rs->min_bw[j] = bw;
574 if (bw > rs->max_bw[j])
575 rs->max_bw[j] = bw;
576
577 rs->io_kb[j] += ts->io_bytes[j] >> 10;
578 }
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579 }
580
581 for (i = 0; i < groupid + 1; i++) {
582 rs = &runstats[i];
583
584 if (rs->max_run[0])
585 rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0];
586 if (rs->max_run[1])
587 rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1];
588 }
589
590 /*
591 * don't overwrite last signal output
592 */
c6ae0a5b
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593 if (!terse_output)
594 printf("\n");
3c39a379 595
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596 for (i = 0; i < nr_ts; i++) {
597 ts = &threadstats[i];
598 rs = &runstats[ts->groupid];
3c39a379 599
c6ae0a5b 600 if (terse_output)
756867bd 601 show_thread_status_terse(ts, rs);
c6ae0a5b 602 else
756867bd 603 show_thread_status(ts, rs);
3c39a379
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604 }
605
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606 if (!terse_output) {
607 for (i = 0; i < groupid + 1; i++)
608 show_group_stats(&runstats[i], i);
3c39a379 609
c6ae0a5b
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610 show_disk_util();
611 }
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612
613 free(runstats);
756867bd 614 free(threadstats);
3c39a379
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615}
616
68704084 617static inline void add_stat_sample(struct io_stat *is, unsigned long data)
3c39a379 618{
68704084 619 double val = data;
6660cc67 620 double delta;
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621
622 if (data > is->max_val)
623 is->max_val = data;
624 if (data < is->min_val)
625 is->min_val = data;
626
627 delta = val - is->mean;
ef11d737
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628 if (delta) {
629 is->mean += delta / (is->samples + 1.0);
630 is->S += delta * (val - is->mean);
631 }
3c39a379 632
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633 is->samples++;
634}
635
bb3884d8
JA
636static void __add_log_sample(struct io_log *iolog, unsigned long val,
637 enum fio_ddir ddir, unsigned long time)
3c39a379
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638{
639 if (iolog->nr_samples == iolog->max_samples) {
640 int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
641
642 iolog->log = realloc(iolog->log, new_size);
643 iolog->max_samples <<= 1;
644 }
645
646 iolog->log[iolog->nr_samples].val = val;
bb3884d8 647 iolog->log[iolog->nr_samples].time = time;
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648 iolog->log[iolog->nr_samples].ddir = ddir;
649 iolog->nr_samples++;
650}
651
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652static void add_log_sample(struct thread_data *td, struct io_log *iolog,
653 unsigned long val, enum fio_ddir ddir)
654{
655 __add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch));
656}
657
658void add_agg_sample(unsigned long val, enum fio_ddir ddir)
659{
660 struct io_log *iolog = agg_io_log[ddir];
661
662 __add_log_sample(iolog, val, ddir, mtime_since_genesis());
663}
664
1e97cce9 665void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
d85f5118 666 unsigned long usec)
3c39a379 667{
756867bd 668 struct thread_stat *ts = &td->ts;
079ad09b 669
d85f5118 670 add_stat_sample(&ts->clat_stat[ddir], usec);
3c39a379 671
079ad09b 672 if (ts->clat_log)
d85f5118 673 add_log_sample(td, ts->clat_log, usec, ddir);
3c39a379
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674}
675
1e97cce9 676void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
d85f5118 677 unsigned long usec)
3c39a379 678{
756867bd 679 struct thread_stat *ts = &td->ts;
079ad09b 680
d85f5118 681 add_stat_sample(&ts->slat_stat[ddir], usec);
3c39a379 682
079ad09b 683 if (ts->slat_log)
d85f5118 684 add_log_sample(td, ts->slat_log, usec, ddir);
3c39a379
JA
685}
686
1e97cce9
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687void add_bw_sample(struct thread_data *td, enum fio_ddir ddir,
688 struct timeval *t)
3c39a379 689{
756867bd 690 struct thread_stat *ts = &td->ts;
079ad09b 691 unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t);
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692 unsigned long rate;
693
2dc1bbeb 694 if (spent < td->o.bw_avg_time)
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695 return;
696
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697 rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent;
698 add_stat_sample(&ts->bw_stat[ddir], rate);
3c39a379 699
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700 if (ts->bw_log)
701 add_log_sample(td, ts->bw_log, rate, ddir);
3c39a379 702
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703 fio_gettime(&ts->stat_sample_time[ddir], NULL);
704 ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
3c39a379 705}