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