Commit | Line | Data |
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3c39a379 JA |
1 | #include <stdio.h> |
2 | #include <string.h> | |
3 | #include <sys/time.h> | |
4 | #include <sys/types.h> | |
5c4e1dbc | 5 | #include <sys/stat.h> |
3c39a379 JA |
6 | #include <dirent.h> |
7 | #include <libgen.h> | |
8 | #include <math.h> | |
756867bd | 9 | #include <assert.h> |
3c39a379 JA |
10 | |
11 | #include "fio.h" | |
3c39a379 JA |
12 | |
13 | static struct itimerval itimer; | |
5c4e1dbc | 14 | static struct list_head disk_list = LIST_HEAD_INIT(disk_list); |
c0a6b0d8 | 15 | static dev_t last_dev; |
3c39a379 | 16 | |
dbe1125e | 17 | /* |
34403fb1 | 18 | * Cheesy number->string conversion, complete with carry rounding error. |
dbe1125e JA |
19 | */ |
20 | static char *num2str(unsigned long num, int maxlen, int base) | |
21 | { | |
22 | /* | |
23 | * could be passed in for 10^3 base, but every caller expects | |
24 | * 2^10 base right now. | |
25 | */ | |
c8c51efd | 26 | const unsigned int thousand = 1024; |
f3502ba2 | 27 | char postfix[] = { 'K', 'M', 'G', 'P', 'E' }; |
dbe1125e JA |
28 | char *buf; |
29 | int i; | |
30 | ||
31 | buf = malloc(128); | |
32 | ||
33 | for (i = 0; base > 1; i++) | |
34 | base /= thousand; | |
35 | ||
36 | do { | |
37 | int len, carry = 0; | |
38 | ||
39 | len = sprintf(buf, "%'lu", num); | |
40 | if (len <= maxlen) { | |
41 | buf[len] = postfix[i]; | |
42 | buf[len + 1] = '\0'; | |
43 | return buf; | |
44 | } | |
45 | ||
46 | if ((num % thousand) >= (thousand / 2)) | |
47 | carry = 1; | |
48 | ||
49 | num /= thousand; | |
50 | num += carry; | |
51 | i++; | |
f3502ba2 | 52 | } while (i <= 5); |
dbe1125e JA |
53 | |
54 | return buf; | |
55 | } | |
56 | ||
3c39a379 JA |
57 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
58 | { | |
59 | unsigned in_flight; | |
60 | char line[256]; | |
61 | FILE *f; | |
62 | char *p; | |
63 | ||
64 | f = fopen(du->path, "r"); | |
65 | if (!f) | |
66 | return 1; | |
67 | ||
68 | p = fgets(line, sizeof(line), f); | |
69 | if (!p) { | |
70 | fclose(f); | |
71 | return 1; | |
72 | } | |
73 | ||
74 | if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) { | |
75 | fclose(f); | |
76 | return 1; | |
77 | } | |
78 | ||
79 | fclose(f); | |
80 | return 0; | |
81 | } | |
82 | ||
83 | static void update_io_tick_disk(struct disk_util *du) | |
84 | { | |
85 | struct disk_util_stat __dus, *dus, *ldus; | |
86 | struct timeval t; | |
87 | ||
88 | if (get_io_ticks(du, &__dus)) | |
89 | return; | |
90 | ||
91 | dus = &du->dus; | |
92 | ldus = &du->last_dus; | |
93 | ||
94 | dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]); | |
95 | dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]); | |
96 | dus->ios[0] += (__dus.ios[0] - ldus->ios[0]); | |
97 | dus->ios[1] += (__dus.ios[1] - ldus->ios[1]); | |
98 | dus->merges[0] += (__dus.merges[0] - ldus->merges[0]); | |
99 | dus->merges[1] += (__dus.merges[1] - ldus->merges[1]); | |
100 | dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]); | |
101 | dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]); | |
102 | dus->io_ticks += (__dus.io_ticks - ldus->io_ticks); | |
103 | dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue); | |
104 | ||
02bcaa8c | 105 | fio_gettime(&t, NULL); |
3c39a379 JA |
106 | du->msec += mtime_since(&du->time, &t); |
107 | memcpy(&du->time, &t, sizeof(t)); | |
108 | memcpy(ldus, &__dus, sizeof(__dus)); | |
109 | } | |
110 | ||
111 | void update_io_ticks(void) | |
112 | { | |
113 | struct list_head *entry; | |
114 | struct disk_util *du; | |
115 | ||
116 | list_for_each(entry, &disk_list) { | |
117 | du = list_entry(entry, struct disk_util, list); | |
118 | update_io_tick_disk(du); | |
119 | } | |
120 | } | |
121 | ||
122 | static int disk_util_exists(dev_t dev) | |
123 | { | |
124 | struct list_head *entry; | |
125 | struct disk_util *du; | |
126 | ||
127 | list_for_each(entry, &disk_list) { | |
128 | du = list_entry(entry, struct disk_util, list); | |
129 | ||
130 | if (du->dev == dev) | |
131 | return 1; | |
132 | } | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | static void disk_util_add(dev_t dev, char *path) | |
138 | { | |
1188caf8 JA |
139 | struct disk_util *du, *__du; |
140 | struct list_head *entry; | |
3c39a379 | 141 | |
1188caf8 | 142 | du = malloc(sizeof(*du)); |
3c39a379 JA |
143 | memset(du, 0, sizeof(*du)); |
144 | INIT_LIST_HEAD(&du->list); | |
145 | sprintf(du->path, "%s/stat", path); | |
146 | du->name = strdup(basename(path)); | |
147 | du->dev = dev; | |
148 | ||
1188caf8 JA |
149 | list_for_each(entry, &disk_list) { |
150 | __du = list_entry(entry, struct disk_util, list); | |
151 | ||
152 | if (!strcmp(du->name, __du->name)) { | |
153 | free(du->name); | |
154 | free(du); | |
155 | return; | |
156 | } | |
157 | } | |
158 | ||
02bcaa8c | 159 | fio_gettime(&du->time, NULL); |
3c39a379 JA |
160 | get_io_ticks(du, &du->last_dus); |
161 | ||
162 | list_add_tail(&du->list, &disk_list); | |
163 | } | |
164 | ||
165 | static int check_dev_match(dev_t dev, char *path) | |
166 | { | |
167 | unsigned int major, minor; | |
168 | char line[256], *p; | |
169 | FILE *f; | |
170 | ||
171 | f = fopen(path, "r"); | |
172 | if (!f) { | |
173 | perror("open path"); | |
174 | return 1; | |
175 | } | |
176 | ||
177 | p = fgets(line, sizeof(line), f); | |
178 | if (!p) { | |
179 | fclose(f); | |
180 | return 1; | |
181 | } | |
182 | ||
183 | if (sscanf(p, "%u:%u", &major, &minor) != 2) { | |
184 | fclose(f); | |
185 | return 1; | |
186 | } | |
187 | ||
188 | if (((major << 8) | minor) == dev) { | |
189 | fclose(f); | |
190 | return 0; | |
191 | } | |
192 | ||
193 | fclose(f); | |
194 | return 1; | |
195 | } | |
196 | ||
197 | static int find_block_dir(dev_t dev, char *path) | |
198 | { | |
199 | struct dirent *dir; | |
200 | struct stat st; | |
201 | int found = 0; | |
202 | DIR *D; | |
203 | ||
204 | D = opendir(path); | |
205 | if (!D) | |
206 | return 0; | |
207 | ||
208 | while ((dir = readdir(D)) != NULL) { | |
209 | char full_path[256]; | |
210 | ||
211 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
212 | continue; | |
3c39a379 JA |
213 | |
214 | sprintf(full_path, "%s/%s", path, dir->d_name); | |
215 | ||
216 | if (!strcmp(dir->d_name, "dev")) { | |
217 | if (!check_dev_match(dev, full_path)) { | |
218 | found = 1; | |
219 | break; | |
220 | } | |
221 | } | |
222 | ||
3307d653 | 223 | if (lstat(full_path, &st) == -1) { |
3c39a379 JA |
224 | perror("stat"); |
225 | break; | |
226 | } | |
227 | ||
228 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
229 | continue; | |
230 | ||
231 | found = find_block_dir(dev, full_path); | |
232 | if (found) { | |
233 | strcpy(path, full_path); | |
234 | break; | |
235 | } | |
236 | } | |
237 | ||
238 | closedir(D); | |
239 | return found; | |
240 | } | |
241 | ||
242 | void init_disk_util(struct thread_data *td) | |
243 | { | |
53cdc686 | 244 | struct fio_file *f; |
3c39a379 | 245 | struct stat st; |
0bbab0e7 | 246 | char foo[PATH_MAX], tmp[PATH_MAX]; |
3c39a379 JA |
247 | dev_t dev; |
248 | char *p; | |
249 | ||
138502a9 | 250 | if (!td->do_disk_util || (td->io_ops->flags & FIO_DISKLESSIO)) |
3c39a379 JA |
251 | return; |
252 | ||
53cdc686 JA |
253 | /* |
254 | * Just use the same file, they are on the same device. | |
255 | */ | |
256 | f = &td->files[0]; | |
257 | if (!stat(f->file_name, &st)) { | |
3c39a379 JA |
258 | if (S_ISBLK(st.st_mode)) |
259 | dev = st.st_rdev; | |
260 | else | |
261 | dev = st.st_dev; | |
262 | } else { | |
263 | /* | |
264 | * must be a file, open "." in that path | |
265 | */ | |
0bbab0e7 | 266 | strncpy(foo, f->file_name, PATH_MAX - 1); |
3c39a379 JA |
267 | p = dirname(foo); |
268 | if (stat(p, &st)) { | |
269 | perror("disk util stat"); | |
270 | return; | |
271 | } | |
272 | ||
273 | dev = st.st_dev; | |
274 | } | |
275 | ||
276 | if (disk_util_exists(dev)) | |
277 | return; | |
c0a6b0d8 JA |
278 | |
279 | /* | |
280 | * for an fs without a device, we will repeatedly stat through | |
281 | * sysfs which can take oodles of time for thousands of files. so | |
282 | * cache the last lookup and compare with that before going through | |
283 | * everything again. | |
284 | */ | |
285 | if (dev == last_dev) | |
286 | return; | |
287 | ||
288 | last_dev = dev; | |
3c39a379 JA |
289 | |
290 | sprintf(foo, "/sys/block"); | |
291 | if (!find_block_dir(dev, foo)) | |
292 | return; | |
293 | ||
294 | /* | |
295 | * If there's a ../queue/ directory there, we are inside a partition. | |
296 | * Check if that is the case and jump back. For loop/md/dm etc we | |
297 | * are already in the right spot. | |
298 | */ | |
299 | sprintf(tmp, "%s/../queue", foo); | |
300 | if (!stat(tmp, &st)) { | |
301 | p = dirname(foo); | |
302 | sprintf(tmp, "%s/queue", p); | |
303 | if (stat(tmp, &st)) { | |
3b70d7e5 | 304 | log_err("unknown sysfs layout\n"); |
3c39a379 JA |
305 | return; |
306 | } | |
0bbab0e7 | 307 | strncpy(tmp, p, PATH_MAX - 1); |
84585003 | 308 | sprintf(foo, "%s", tmp); |
3c39a379 JA |
309 | } |
310 | ||
eecf272f JA |
311 | if (td->ioscheduler) |
312 | td->sysfs_root = strdup(foo); | |
313 | ||
3c39a379 JA |
314 | disk_util_add(dev, foo); |
315 | } | |
316 | ||
317 | void disk_util_timer_arm(void) | |
318 | { | |
319 | itimer.it_value.tv_sec = 0; | |
320 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
321 | setitimer(ITIMER_REAL, &itimer, NULL); | |
322 | } | |
323 | ||
324 | void update_rusage_stat(struct thread_data *td) | |
325 | { | |
756867bd | 326 | struct thread_stat *ts = &td->ts; |
3c39a379 | 327 | |
079ad09b JA |
328 | getrusage(RUSAGE_SELF, &ts->ru_end); |
329 | ||
330 | ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime); | |
331 | ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime); | |
332 | ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw); | |
3c39a379 | 333 | |
079ad09b | 334 | memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end)); |
3c39a379 JA |
335 | } |
336 | ||
337 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, | |
338 | double *mean, double *dev) | |
339 | { | |
68704084 | 340 | double n = is->samples; |
3c39a379 JA |
341 | |
342 | if (is->samples == 0) | |
343 | return 0; | |
344 | ||
345 | *min = is->min_val; | |
346 | *max = is->max_val; | |
347 | ||
348 | n = (double) is->samples; | |
68704084 | 349 | *mean = is->mean; |
e6d276f2 | 350 | |
68704084 JA |
351 | if (n > 1.0) |
352 | *dev = sqrt(is->S / (n - 1.0)); | |
ef9c5c40 | 353 | else |
68704084 | 354 | *dev = -1.0; |
ef9c5c40 | 355 | |
3c39a379 JA |
356 | return 1; |
357 | } | |
358 | ||
359 | static void show_group_stats(struct group_run_stats *rs, int id) | |
360 | { | |
dbe1125e JA |
361 | char *p1, *p2, *p3, *p4; |
362 | const char *ddir_str[] = { " READ", " WRITE" }; | |
363 | int i; | |
364 | ||
eb8bbf48 | 365 | fprintf(f_out, "\nRun status group %d (all jobs):\n", id); |
3c39a379 | 366 | |
dbe1125e JA |
367 | for (i = 0; i <= DDIR_WRITE; i++) { |
368 | if (!rs->max_run[i]) | |
369 | continue; | |
370 | ||
371 | p1 = num2str(rs->io_kb[i], 6, 1); | |
372 | p2 = num2str(rs->agg[i], 6, 1); | |
373 | p3 = num2str(rs->min_bw[i], 6, 1); | |
374 | p4 = num2str(rs->max_bw[i], 6, 1); | |
375 | ||
376 | fprintf(f_out, "%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[0], rs->max_run[0]); | |
377 | ||
378 | free(p1); | |
379 | free(p2); | |
380 | free(p3); | |
381 | free(p4); | |
382 | } | |
3c39a379 JA |
383 | } |
384 | ||
385 | static void show_disk_util(void) | |
386 | { | |
387 | struct disk_util_stat *dus; | |
b4a6a59a | 388 | struct list_head *entry, *next; |
3c39a379 JA |
389 | struct disk_util *du; |
390 | double util; | |
391 | ||
eb8bbf48 | 392 | fprintf(f_out, "\nDisk stats (read/write):\n"); |
3c39a379 JA |
393 | |
394 | list_for_each(entry, &disk_list) { | |
395 | du = list_entry(entry, struct disk_util, list); | |
396 | dus = &du->dus; | |
397 | ||
398 | util = (double) 100 * du->dus.io_ticks / (double) du->msec; | |
399 | if (util > 100.0) | |
400 | util = 100.0; | |
401 | ||
eb8bbf48 | 402 | fprintf(f_out, " %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util); |
3c39a379 | 403 | } |
b4a6a59a JA |
404 | |
405 | /* | |
406 | * now free the list | |
407 | */ | |
408 | list_for_each_safe(entry, next, &disk_list) { | |
409 | list_del(entry); | |
410 | du = list_entry(entry, struct disk_util, list); | |
411 | free(du->name); | |
412 | free(du); | |
413 | } | |
3c39a379 JA |
414 | } |
415 | ||
756867bd | 416 | static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, |
3c39a379 JA |
417 | int ddir) |
418 | { | |
3c9b60c1 | 419 | const char *ddir_str[] = { "read ", "write" }; |
3c39a379 JA |
420 | unsigned long min, max; |
421 | unsigned long long bw; | |
422 | double mean, dev; | |
dbe1125e | 423 | char *io_p, *bw_p; |
3c39a379 | 424 | |
756867bd | 425 | if (!ts->runtime[ddir]) |
3c39a379 JA |
426 | return; |
427 | ||
756867bd JA |
428 | bw = ts->io_bytes[ddir] / ts->runtime[ddir]; |
429 | io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1); | |
dbe1125e JA |
430 | bw_p = num2str(bw, 6, 1); |
431 | ||
756867bd | 432 | fprintf(f_out, " %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, ts->runtime[ddir]); |
dbe1125e JA |
433 | |
434 | free(io_p); | |
435 | free(bw_p); | |
3c39a379 | 436 | |
079ad09b | 437 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) |
6104ddb6 | 438 | fprintf(f_out, " slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); |
3c39a379 | 439 | |
079ad09b | 440 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) |
6104ddb6 | 441 | fprintf(f_out, " clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); |
3c39a379 | 442 | |
079ad09b | 443 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
3c39a379 JA |
444 | double p_of_agg; |
445 | ||
446 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; | |
6104ddb6 | 447 | fprintf(f_out, " 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 JA |
448 | } |
449 | } | |
450 | ||
756867bd | 451 | static void show_thread_status(struct thread_stat *ts, |
3c39a379 JA |
452 | struct group_run_stats *rs) |
453 | { | |
454 | double usr_cpu, sys_cpu; | |
69008999 | 455 | unsigned long runtime; |
71619dc2 | 456 | double io_u_dist[FIO_IO_U_MAP_NR]; |
ec118304 | 457 | double io_u_lat[FIO_IO_U_LAT_NR]; |
71619dc2 | 458 | int i; |
3c39a379 | 459 | |
756867bd | 460 | if (!(ts->io_bytes[0] + ts->io_bytes[1])) |
3c39a379 JA |
461 | return; |
462 | ||
756867bd JA |
463 | if (!ts->error) |
464 | fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->error, ts->pid); | |
6d663077 | 465 | else |
756867bd | 466 | fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->error, ts->verror, ts->pid); |
3c39a379 | 467 | |
756867bd JA |
468 | if (ts->io_bytes[DDIR_READ]) |
469 | show_ddir_status(rs, ts, DDIR_READ); | |
470 | if (ts->io_bytes[DDIR_WRITE]) | |
471 | show_ddir_status(rs, ts, DDIR_WRITE); | |
3c39a379 | 472 | |
756867bd | 473 | runtime = ts->total_run_time; |
69008999 | 474 | if (runtime) { |
1e97cce9 | 475 | double runt = (double) runtime; |
3c39a379 | 476 | |
756867bd JA |
477 | usr_cpu = (double) ts->usr_time * 100 / runt; |
478 | sys_cpu = (double) ts->sys_time * 100 / runt; | |
3c39a379 JA |
479 | } else { |
480 | usr_cpu = 0; | |
481 | sys_cpu = 0; | |
482 | } | |
483 | ||
756867bd | 484 | fprintf(f_out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx); |
71619dc2 JA |
485 | |
486 | /* | |
487 | * Do depth distribution calculations | |
488 | */ | |
489 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
756867bd | 490 | io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts->total_io_u; |
71619dc2 JA |
491 | io_u_dist[i] *= 100.0; |
492 | } | |
493 | ||
5d458077 | 494 | fprintf(f_out, " 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]); |
61697c37 | 495 | |
ec118304 JA |
496 | /* |
497 | * Do latency distribution calculations | |
498 | */ | |
499 | for (i = 0; i < FIO_IO_U_LAT_NR; i++) { | |
756867bd | 500 | io_u_lat[i] = (double) ts->io_u_lat[i] / (double) ts->total_io_u; |
ec118304 JA |
501 | io_u_lat[i] *= 100.0; |
502 | } | |
503 | ||
8abdce66 JA |
504 | fprintf(f_out, " lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]); |
505 | fprintf(f_out, " lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]); | |
ec118304 | 506 | |
756867bd JA |
507 | if (ts->description) |
508 | fprintf(f_out, "%s\n", ts->description); | |
3c39a379 JA |
509 | } |
510 | ||
756867bd | 511 | static void show_ddir_status_terse(struct thread_stat *ts, |
c6ae0a5b JA |
512 | struct group_run_stats *rs, int ddir) |
513 | { | |
514 | unsigned long min, max; | |
515 | unsigned long long bw; | |
516 | double mean, dev; | |
517 | ||
518 | bw = 0; | |
756867bd JA |
519 | if (ts->runtime[ddir]) |
520 | bw = ts->io_bytes[ddir] / ts->runtime[ddir]; | |
c6ae0a5b | 521 | |
756867bd | 522 | fprintf(f_out, ",%llu,%llu,%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]); |
c6ae0a5b | 523 | |
079ad09b | 524 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) |
c6ae0a5b JA |
525 | fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); |
526 | else | |
527 | fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); | |
528 | ||
079ad09b | 529 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) |
c6ae0a5b JA |
530 | fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); |
531 | else | |
532 | fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); | |
533 | ||
079ad09b | 534 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
c6ae0a5b JA |
535 | double p_of_agg; |
536 | ||
537 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; | |
538 | fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev); | |
539 | } else | |
540 | fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0); | |
c6ae0a5b JA |
541 | } |
542 | ||
543 | ||
756867bd | 544 | static void show_thread_status_terse(struct thread_stat *ts, |
c6ae0a5b JA |
545 | struct group_run_stats *rs) |
546 | { | |
547 | double usr_cpu, sys_cpu; | |
548 | ||
756867bd | 549 | fprintf(f_out, "%s,%d,%d", ts->name, ts->groupid, ts->error); |
c6ae0a5b | 550 | |
756867bd JA |
551 | show_ddir_status_terse(ts, rs, 0); |
552 | show_ddir_status_terse(ts, rs, 1); | |
c6ae0a5b | 553 | |
756867bd JA |
554 | if (ts->total_run_time) { |
555 | double runt = (double) ts->total_run_time; | |
c6ae0a5b | 556 | |
756867bd JA |
557 | usr_cpu = (double) ts->usr_time * 100 / runt; |
558 | sys_cpu = (double) ts->sys_time * 100 / runt; | |
c6ae0a5b JA |
559 | } else { |
560 | usr_cpu = 0; | |
561 | sys_cpu = 0; | |
562 | } | |
563 | ||
756867bd JA |
564 | fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, ts->ctx); |
565 | } | |
566 | ||
567 | static void __sum_stat(struct io_stat *dst, struct io_stat *src, int nr) | |
568 | { | |
569 | double mean, S; | |
570 | ||
571 | dst->min_val = min(dst->min_val, src->min_val); | |
572 | dst->max_val = max(dst->max_val, src->max_val); | |
573 | dst->samples += src->samples; | |
574 | ||
575 | /* | |
576 | * Needs a new method for calculating stddev, we cannot just | |
577 | * average them we do below for nr > 1 | |
578 | */ | |
579 | if (nr == 1) { | |
580 | mean = src->mean; | |
581 | S = src->S; | |
582 | } else { | |
583 | mean = ((src->mean * (double) nr) + dst->mean) / ((double) nr + 1.0); | |
584 | S = ((src->S * (double) nr) + dst->S) / ((double) nr + 1.0); | |
585 | } | |
586 | ||
587 | dst->mean = mean; | |
588 | dst->S = S; | |
589 | } | |
590 | ||
591 | static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) | |
592 | { | |
593 | __sum_stat(&dst[DDIR_READ], &src[DDIR_READ], nr); | |
594 | __sum_stat(&dst[DDIR_WRITE], &src[DDIR_WRITE], nr); | |
c6ae0a5b JA |
595 | } |
596 | ||
3c39a379 JA |
597 | void show_run_stats(void) |
598 | { | |
599 | struct group_run_stats *runstats, *rs; | |
600 | struct thread_data *td; | |
756867bd JA |
601 | struct thread_stat *threadstats, *ts; |
602 | int i, j, k, nr_ts, last_ts, members; | |
3c39a379 JA |
603 | |
604 | runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); | |
605 | ||
606 | for (i = 0; i < groupid + 1; i++) { | |
607 | rs = &runstats[i]; | |
608 | ||
609 | memset(rs, 0, sizeof(*rs)); | |
610 | rs->min_bw[0] = rs->min_run[0] = ~0UL; | |
611 | rs->min_bw[1] = rs->min_run[1] = ~0UL; | |
612 | } | |
613 | ||
756867bd JA |
614 | /* |
615 | * find out how many threads stats we need. if group reporting isn't | |
616 | * enabled, it's one-per-td. | |
617 | */ | |
618 | nr_ts = 0; | |
619 | last_ts = -1; | |
620 | for_each_td(td, i) { | |
621 | if (!td->group_reporting) { | |
622 | nr_ts++; | |
623 | continue; | |
624 | } | |
625 | if (last_ts == td->groupid) | |
626 | continue; | |
627 | ||
628 | last_ts = td->groupid; | |
629 | nr_ts++; | |
630 | } | |
631 | ||
632 | threadstats = malloc(nr_ts * sizeof(struct thread_stat)); | |
633 | ||
634 | for (i = 0; i < nr_ts; i++) { | |
635 | ts = &threadstats[i]; | |
636 | ||
637 | memset(ts, 0, sizeof(*ts)); | |
638 | ts->clat_stat[0].min_val = -1UL; | |
639 | ts->clat_stat[1].min_val = -1UL; | |
640 | ts->slat_stat[0].min_val = -1UL; | |
641 | ts->slat_stat[1].min_val = -1UL; | |
642 | ts->bw_stat[0].min_val = -1UL; | |
643 | ts->bw_stat[1].min_val = -1UL; | |
644 | } | |
645 | ||
646 | j = 0; | |
647 | last_ts = -1; | |
648 | members = 0; | |
34572e28 | 649 | for_each_td(td, i) { |
756867bd JA |
650 | ts = &threadstats[j]; |
651 | ||
652 | members++; | |
653 | ||
654 | if (!ts->groupid) { | |
655 | ts->name = td->name; | |
656 | ts->description = td->description; | |
657 | ts->error = td->error; | |
658 | ts->groupid = td->groupid; | |
659 | ts->pid = td->pid; | |
660 | ts->verror = td->verror; | |
661 | } | |
662 | ||
663 | sum_stat(ts->clat_stat, td->ts.clat_stat, members); | |
664 | sum_stat(ts->slat_stat, td->ts.slat_stat, members); | |
665 | sum_stat(ts->bw_stat, td->ts.bw_stat, members); | |
666 | ||
667 | ts->stat_io_bytes[0] += td->ts.stat_io_bytes[0]; | |
668 | ts->stat_io_bytes[1] += td->ts.stat_io_bytes[1]; | |
669 | ||
670 | ts->usr_time += td->ts.usr_time; | |
671 | ts->sys_time += td->ts.sys_time; | |
672 | ts->ctx += td->ts.ctx; | |
673 | ||
674 | for (k = 0; k < FIO_IO_U_MAP_NR; k++) | |
675 | ts->io_u_map[k] += td->ts.io_u_map[k]; | |
676 | for (k = 0; k < FIO_IO_U_LAT_NR; k++) | |
677 | ts->io_u_lat[k] += td->ts.io_u_lat[k]; | |
678 | ||
679 | ts->total_io_u += td->ts.total_io_u; | |
680 | ts->io_bytes[0] += td->ts.io_bytes[0]; | |
681 | ts->io_bytes[1] += td->ts.io_bytes[1]; | |
682 | ||
683 | if (ts->runtime[0] < td->ts.runtime[0]) | |
684 | ts->runtime[0] = td->ts.runtime[0]; | |
685 | if (ts->runtime[1] < td->ts.runtime[1]) | |
686 | ts->runtime[1] = td->ts.runtime[1]; | |
687 | ||
688 | ts->total_run_time += td->ts.total_run_time; | |
689 | ||
690 | if (!td->group_reporting) { | |
691 | members = 0; | |
692 | j++; | |
693 | continue; | |
694 | } | |
695 | if (last_ts == td->groupid) | |
696 | continue; | |
697 | ||
698 | if (last_ts != -1) { | |
699 | members = 0; | |
700 | j++; | |
701 | } | |
702 | ||
703 | last_ts = td->groupid; | |
704 | } | |
705 | ||
706 | for (i = 0; i < nr_ts; i++) { | |
3c39a379 JA |
707 | unsigned long long rbw, wbw; |
708 | ||
756867bd JA |
709 | ts = &threadstats[i]; |
710 | rs = &runstats[ts->groupid]; | |
3c39a379 | 711 | |
756867bd JA |
712 | if (ts->runtime[0] < rs->min_run[0] || !rs->min_run[0]) |
713 | rs->min_run[0] = ts->runtime[0]; | |
714 | if (ts->runtime[0] > rs->max_run[0]) | |
715 | rs->max_run[0] = ts->runtime[0]; | |
716 | if (ts->runtime[1] < rs->min_run[1] || !rs->min_run[1]) | |
717 | rs->min_run[1] = ts->runtime[1]; | |
718 | if (ts->runtime[1] > rs->max_run[1]) | |
719 | rs->max_run[1] = ts->runtime[1]; | |
3c39a379 JA |
720 | |
721 | rbw = wbw = 0; | |
756867bd JA |
722 | if (ts->runtime[0]) |
723 | rbw = td->io_bytes[0] / (unsigned long long) ts->runtime[0]; | |
724 | if (ts->runtime[1]) | |
725 | wbw = td->io_bytes[1] / (unsigned long long) ts->runtime[1]; | |
3c39a379 JA |
726 | |
727 | if (rbw < rs->min_bw[0]) | |
728 | rs->min_bw[0] = rbw; | |
729 | if (wbw < rs->min_bw[1]) | |
730 | rs->min_bw[1] = wbw; | |
731 | if (rbw > rs->max_bw[0]) | |
732 | rs->max_bw[0] = rbw; | |
733 | if (wbw > rs->max_bw[1]) | |
734 | rs->max_bw[1] = wbw; | |
735 | ||
756867bd JA |
736 | rs->io_kb[0] += ts->io_bytes[0] >> 10; |
737 | rs->io_kb[1] += ts->io_bytes[1] >> 10; | |
3c39a379 JA |
738 | } |
739 | ||
740 | for (i = 0; i < groupid + 1; i++) { | |
741 | rs = &runstats[i]; | |
742 | ||
743 | if (rs->max_run[0]) | |
744 | rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0]; | |
745 | if (rs->max_run[1]) | |
746 | rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1]; | |
747 | } | |
748 | ||
749 | /* | |
750 | * don't overwrite last signal output | |
751 | */ | |
c6ae0a5b JA |
752 | if (!terse_output) |
753 | printf("\n"); | |
3c39a379 | 754 | |
756867bd JA |
755 | for (i = 0; i < nr_ts; i++) { |
756 | ts = &threadstats[i]; | |
757 | rs = &runstats[ts->groupid]; | |
3c39a379 | 758 | |
c6ae0a5b | 759 | if (terse_output) |
756867bd | 760 | show_thread_status_terse(ts, rs); |
c6ae0a5b | 761 | else |
756867bd | 762 | show_thread_status(ts, rs); |
3c39a379 JA |
763 | } |
764 | ||
c6ae0a5b JA |
765 | if (!terse_output) { |
766 | for (i = 0; i < groupid + 1; i++) | |
767 | show_group_stats(&runstats[i], i); | |
3c39a379 | 768 | |
c6ae0a5b JA |
769 | show_disk_util(); |
770 | } | |
eecf272f JA |
771 | |
772 | free(runstats); | |
756867bd | 773 | free(threadstats); |
3c39a379 JA |
774 | } |
775 | ||
68704084 | 776 | static inline void add_stat_sample(struct io_stat *is, unsigned long data) |
3c39a379 | 777 | { |
68704084 JA |
778 | double val = data; |
779 | double delta, n; | |
780 | ||
781 | if (data > is->max_val) | |
782 | is->max_val = data; | |
783 | if (data < is->min_val) | |
784 | is->min_val = data; | |
785 | ||
786 | delta = val - is->mean; | |
787 | n = is->samples + 1.0; | |
788 | is->mean += delta / n; | |
789 | is->S += delta * (val - is->mean); | |
3c39a379 | 790 | |
3c39a379 JA |
791 | is->samples++; |
792 | } | |
793 | ||
bb3884d8 JA |
794 | static void __add_log_sample(struct io_log *iolog, unsigned long val, |
795 | enum fio_ddir ddir, unsigned long time) | |
3c39a379 JA |
796 | { |
797 | if (iolog->nr_samples == iolog->max_samples) { | |
798 | int new_size = sizeof(struct io_sample) * iolog->max_samples*2; | |
799 | ||
800 | iolog->log = realloc(iolog->log, new_size); | |
801 | iolog->max_samples <<= 1; | |
802 | } | |
803 | ||
804 | iolog->log[iolog->nr_samples].val = val; | |
bb3884d8 | 805 | iolog->log[iolog->nr_samples].time = time; |
3c39a379 JA |
806 | iolog->log[iolog->nr_samples].ddir = ddir; |
807 | iolog->nr_samples++; | |
808 | } | |
809 | ||
bb3884d8 JA |
810 | static void add_log_sample(struct thread_data *td, struct io_log *iolog, |
811 | unsigned long val, enum fio_ddir ddir) | |
812 | { | |
813 | __add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch)); | |
814 | } | |
815 | ||
816 | void add_agg_sample(unsigned long val, enum fio_ddir ddir) | |
817 | { | |
818 | struct io_log *iolog = agg_io_log[ddir]; | |
819 | ||
820 | __add_log_sample(iolog, val, ddir, mtime_since_genesis()); | |
821 | } | |
822 | ||
1e97cce9 JA |
823 | void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, |
824 | unsigned long msec) | |
3c39a379 | 825 | { |
756867bd | 826 | struct thread_stat *ts = &td->ts; |
079ad09b JA |
827 | |
828 | add_stat_sample(&ts->clat_stat[ddir], msec); | |
3c39a379 | 829 | |
079ad09b JA |
830 | if (ts->clat_log) |
831 | add_log_sample(td, ts->clat_log, msec, ddir); | |
3c39a379 JA |
832 | } |
833 | ||
1e97cce9 JA |
834 | void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, |
835 | unsigned long msec) | |
3c39a379 | 836 | { |
756867bd | 837 | struct thread_stat *ts = &td->ts; |
079ad09b JA |
838 | |
839 | add_stat_sample(&ts->slat_stat[ddir], msec); | |
3c39a379 | 840 | |
079ad09b JA |
841 | if (ts->slat_log) |
842 | add_log_sample(td, ts->slat_log, msec, ddir); | |
3c39a379 JA |
843 | } |
844 | ||
1e97cce9 JA |
845 | void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, |
846 | struct timeval *t) | |
3c39a379 | 847 | { |
756867bd | 848 | struct thread_stat *ts = &td->ts; |
079ad09b | 849 | unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t); |
3c39a379 JA |
850 | unsigned long rate; |
851 | ||
852 | if (spent < td->bw_avg_time) | |
853 | return; | |
854 | ||
079ad09b JA |
855 | rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent; |
856 | add_stat_sample(&ts->bw_stat[ddir], rate); | |
3c39a379 | 857 | |
079ad09b JA |
858 | if (ts->bw_log) |
859 | add_log_sample(td, ts->bw_log, rate, ddir); | |
3c39a379 | 860 | |
079ad09b JA |
861 | fio_gettime(&ts->stat_sample_time[ddir], NULL); |
862 | ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; | |
3c39a379 | 863 | } |