Commit | Line | Data |
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9f8f2064 JA |
1 | #include <stdio.h> |
2 | #include <string.h> | |
3 | #include <sys/time.h> | |
4 | #include <sys/types.h> | |
5 | #include <sys/stat.h> | |
6 | #include <dirent.h> | |
7 | #include <libgen.h> | |
8 | #include <math.h> | |
9 | ||
10 | #include "fio.h" | |
c97bd0fa | 11 | #include "smalloc.h" |
7c9b1bce | 12 | #include "diskutil.h" |
9f8f2064 JA |
13 | |
14 | static int last_majdev, last_mindev; | |
c97bd0fa | 15 | static struct disk_util *last_du; |
9f8f2064 | 16 | |
9ec7779f | 17 | static struct fio_mutex *disk_util_mutex; |
9ec7779f | 18 | |
d09a64a0 | 19 | FLIST_HEAD(disk_list); |
9f8f2064 | 20 | |
2db4ecca JA |
21 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
22 | int majdev, int mindev, char *path); | |
23 | ||
c97bd0fa JA |
24 | static void disk_util_free(struct disk_util *du) |
25 | { | |
26 | if (du == last_du) | |
27 | last_du = NULL; | |
28 | ||
b8d541d5 JA |
29 | while (!flist_empty(&du->slaves)) { |
30 | struct disk_util *slave; | |
31 | ||
32 | slave = flist_entry(du->slaves.next, struct disk_util, slavelist); | |
33 | flist_del(&slave->slavelist); | |
34 | slave->users--; | |
35 | } | |
93bcfd20 | 36 | |
c97bd0fa | 37 | fio_mutex_remove(du->lock); |
c97bd0fa JA |
38 | sfree(du); |
39 | } | |
40 | ||
9f8f2064 JA |
41 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
42 | { | |
43 | unsigned in_flight; | |
d09a64a0 | 44 | unsigned long long sectors[2]; |
9f8f2064 JA |
45 | char line[256]; |
46 | FILE *f; | |
47 | char *p; | |
5ec10eaa | 48 | int ret; |
9f8f2064 | 49 | |
cd991b9e JA |
50 | dprint(FD_DISKUTIL, "open stat file: %s\n", du->path); |
51 | ||
9f8f2064 JA |
52 | f = fopen(du->path, "r"); |
53 | if (!f) | |
54 | return 1; | |
55 | ||
56 | p = fgets(line, sizeof(line), f); | |
57 | if (!p) { | |
58 | fclose(f); | |
59 | return 1; | |
60 | } | |
61 | ||
cd991b9e JA |
62 | dprint(FD_DISKUTIL, "%s: %s", du->path, p); |
63 | ||
64 | ret = sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], | |
d09a64a0 | 65 | &dus->merges[0], §ors[0], |
5ec10eaa | 66 | &dus->ticks[0], &dus->ios[1], |
d09a64a0 | 67 | &dus->merges[1], §ors[1], |
5ec10eaa JA |
68 | &dus->ticks[1], &in_flight, |
69 | &dus->io_ticks, &dus->time_in_queue); | |
9f8f2064 | 70 | fclose(f); |
cd991b9e | 71 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
d09a64a0 JA |
72 | dus->sectors[0] = sectors[0]; |
73 | dus->sectors[1] = sectors[1]; | |
cd991b9e | 74 | return ret != 11; |
9f8f2064 JA |
75 | } |
76 | ||
77 | static void update_io_tick_disk(struct disk_util *du) | |
78 | { | |
79 | struct disk_util_stat __dus, *dus, *ldus; | |
80 | struct timeval t; | |
81 | ||
c97bd0fa JA |
82 | if (!du->users) |
83 | return; | |
90b97ac3 JA |
84 | if (get_io_ticks(du, &__dus)) |
85 | return; | |
9f8f2064 JA |
86 | |
87 | dus = &du->dus; | |
88 | ldus = &du->last_dus; | |
89 | ||
90 | dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]); | |
91 | dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]); | |
92 | dus->ios[0] += (__dus.ios[0] - ldus->ios[0]); | |
93 | dus->ios[1] += (__dus.ios[1] - ldus->ios[1]); | |
94 | dus->merges[0] += (__dus.merges[0] - ldus->merges[0]); | |
95 | dus->merges[1] += (__dus.merges[1] - ldus->merges[1]); | |
96 | dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]); | |
97 | dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]); | |
98 | dus->io_ticks += (__dus.io_ticks - ldus->io_ticks); | |
99 | dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue); | |
100 | ||
101 | fio_gettime(&t, NULL); | |
d09a64a0 | 102 | dus->msec += mtime_since(&du->time, &t); |
9f8f2064 JA |
103 | memcpy(&du->time, &t, sizeof(t)); |
104 | memcpy(ldus, &__dus, sizeof(__dus)); | |
105 | } | |
106 | ||
9ec7779f | 107 | int update_io_ticks(void) |
9f8f2064 | 108 | { |
01743ee1 | 109 | struct flist_head *entry; |
9f8f2064 | 110 | struct disk_util *du; |
9ec7779f | 111 | int ret = 0; |
9f8f2064 | 112 | |
cd991b9e JA |
113 | dprint(FD_DISKUTIL, "update io ticks\n"); |
114 | ||
9ec7779f JA |
115 | fio_mutex_down(disk_util_mutex); |
116 | ||
117 | if (!disk_util_exit) { | |
118 | flist_for_each(entry, &disk_list) { | |
119 | du = flist_entry(entry, struct disk_util, list); | |
120 | update_io_tick_disk(du); | |
121 | } | |
122 | } else | |
123 | ret = 1; | |
124 | ||
125 | fio_mutex_up(disk_util_mutex); | |
126 | return ret; | |
9f8f2064 JA |
127 | } |
128 | ||
e11c410c | 129 | static struct disk_util *disk_util_exists(int major, int minor) |
9f8f2064 | 130 | { |
01743ee1 | 131 | struct flist_head *entry; |
9f8f2064 JA |
132 | struct disk_util *du; |
133 | ||
9ec7779f JA |
134 | fio_mutex_down(disk_util_mutex); |
135 | ||
01743ee1 JA |
136 | flist_for_each(entry, &disk_list) { |
137 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 138 | |
9ec7779f JA |
139 | if (major == du->major && minor == du->minor) { |
140 | fio_mutex_up(disk_util_mutex); | |
e11c410c | 141 | return du; |
9ec7779f | 142 | } |
9f8f2064 JA |
143 | } |
144 | ||
9ec7779f | 145 | fio_mutex_up(disk_util_mutex); |
e11c410c | 146 | return NULL; |
9f8f2064 JA |
147 | } |
148 | ||
67423013 ST |
149 | static int get_device_numbers(char *file_name, int *maj, int *min) |
150 | { | |
151 | struct stat st; | |
152 | int majdev, mindev; | |
153 | char tempname[PATH_MAX], *p; | |
154 | ||
155 | if (!lstat(file_name, &st)) { | |
156 | if (S_ISBLK(st.st_mode)) { | |
157 | majdev = major(st.st_rdev); | |
158 | mindev = minor(st.st_rdev); | |
159 | } else if (S_ISCHR(st.st_mode)) { | |
160 | majdev = major(st.st_rdev); | |
161 | mindev = minor(st.st_rdev); | |
162 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) | |
163 | return -1; | |
164 | } else if (S_ISFIFO(st.st_mode)) | |
165 | return -1; | |
166 | else { | |
167 | majdev = major(st.st_dev); | |
168 | mindev = minor(st.st_dev); | |
169 | } | |
170 | } else { | |
171 | /* | |
172 | * must be a file, open "." in that path | |
173 | */ | |
174 | strncpy(tempname, file_name, PATH_MAX - 1); | |
175 | p = dirname(tempname); | |
176 | if (stat(p, &st)) { | |
177 | perror("disk util stat"); | |
178 | return -1; | |
179 | } | |
180 | ||
181 | majdev = major(st.st_dev); | |
182 | mindev = minor(st.st_dev); | |
183 | } | |
184 | ||
185 | *min = mindev; | |
186 | *maj = majdev; | |
187 | ||
188 | return 0; | |
189 | } | |
190 | ||
191 | static int read_block_dev_entry(char *path, int *maj, int *min) | |
192 | { | |
193 | char line[256], *p; | |
194 | FILE *f; | |
195 | ||
196 | f = fopen(path, "r"); | |
197 | if (!f) { | |
198 | perror("open path"); | |
199 | return 1; | |
200 | } | |
201 | ||
202 | p = fgets(line, sizeof(line), f); | |
203 | fclose(f); | |
204 | ||
205 | if (!p) | |
206 | return 1; | |
207 | ||
208 | if (sscanf(p, "%u:%u", maj, min) != 2) | |
209 | return 1; | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
67423013 | 214 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
2db4ecca | 215 | struct disk_util *masterdu) |
67423013 ST |
216 | { |
217 | DIR *dirhandle = NULL; | |
218 | struct dirent *dirent = NULL; | |
219 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; | |
220 | struct disk_util *slavedu = NULL; | |
221 | int majdev, mindev; | |
222 | ssize_t linklen; | |
223 | ||
2db4ecca | 224 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
67423013 ST |
225 | dirhandle = opendir(slavesdir); |
226 | if (!dirhandle) | |
227 | return; | |
228 | ||
229 | while ((dirent = readdir(dirhandle)) != NULL) { | |
2db4ecca JA |
230 | if (!strcmp(dirent->d_name, ".") || |
231 | !strcmp(dirent->d_name, "..")) | |
67423013 ST |
232 | continue; |
233 | ||
b9fd788f | 234 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, dirent->d_name); |
67423013 ST |
235 | /* Can we always assume that the slaves device entries |
236 | * are links to the real directories for the slave | |
237 | * devices? | |
238 | */ | |
2db4ecca JA |
239 | linklen = readlink(temppath, slavepath, PATH_MAX - 0); |
240 | if (linklen < 0) { | |
67423013 ST |
241 | perror("readlink() for slave device."); |
242 | return; | |
243 | } | |
2db4ecca | 244 | slavepath[linklen] = '\0'; |
67423013 ST |
245 | |
246 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); | |
247 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { | |
248 | perror("Error getting slave device numbers."); | |
249 | return; | |
250 | } | |
251 | ||
b06de82e AB |
252 | /* |
253 | * See if this maj,min already exists | |
254 | */ | |
255 | slavedu = disk_util_exists(majdev, mindev); | |
256 | if (slavedu) | |
257 | continue; | |
258 | ||
b9fd788f | 259 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, slavepath); |
67423013 ST |
260 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
261 | slavedu = disk_util_exists(majdev, mindev); | |
262 | ||
263 | /* Should probably use an assert here. slavedu should | |
264 | * always be present at this point. */ | |
b8d541d5 JA |
265 | if (slavedu) { |
266 | slavedu->users++; | |
67423013 | 267 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
b8d541d5 | 268 | } |
67423013 ST |
269 | } |
270 | ||
271 | closedir(dirhandle); | |
67423013 ST |
272 | } |
273 | ||
b8fefc2b | 274 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
c97bd0fa | 275 | int mindev, char *path) |
9f8f2064 JA |
276 | { |
277 | struct disk_util *du, *__du; | |
01743ee1 | 278 | struct flist_head *entry; |
9f8f2064 | 279 | |
cd991b9e JA |
280 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
281 | ||
c97bd0fa | 282 | du = smalloc(sizeof(*du)); |
9f8f2064 | 283 | memset(du, 0, sizeof(*du)); |
01743ee1 | 284 | INIT_FLIST_HEAD(&du->list); |
9f8f2064 | 285 | sprintf(du->path, "%s/stat", path); |
d09a64a0 | 286 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ); |
e11c410c | 287 | du->sysfs_root = path; |
9f8f2064 JA |
288 | du->major = majdev; |
289 | du->minor = mindev; | |
67423013 ST |
290 | INIT_FLIST_HEAD(&du->slavelist); |
291 | INIT_FLIST_HEAD(&du->slaves); | |
521da527 | 292 | du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
c97bd0fa | 293 | du->users = 0; |
9f8f2064 | 294 | |
9ec7779f JA |
295 | fio_mutex_down(disk_util_mutex); |
296 | ||
01743ee1 JA |
297 | flist_for_each(entry, &disk_list) { |
298 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 299 | |
d09a64a0 | 300 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 301 | |
d09a64a0 | 302 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 303 | disk_util_free(du); |
9ec7779f | 304 | fio_mutex_up(disk_util_mutex); |
c97bd0fa | 305 | return __du; |
9f8f2064 JA |
306 | } |
307 | } | |
308 | ||
d09a64a0 | 309 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 310 | |
9f8f2064 JA |
311 | fio_gettime(&du->time, NULL); |
312 | get_io_ticks(du, &du->last_dus); | |
313 | ||
01743ee1 | 314 | flist_add_tail(&du->list, &disk_list); |
9ec7779f JA |
315 | fio_mutex_up(disk_util_mutex); |
316 | ||
67423013 | 317 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 318 | return du; |
9f8f2064 JA |
319 | } |
320 | ||
321 | static int check_dev_match(int majdev, int mindev, char *path) | |
322 | { | |
323 | int major, minor; | |
9f8f2064 | 324 | |
67423013 | 325 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 326 | return 1; |
9f8f2064 | 327 | |
c97bd0fa | 328 | if (majdev == major && mindev == minor) |
9f8f2064 | 329 | return 0; |
9f8f2064 | 330 | |
9f8f2064 JA |
331 | return 1; |
332 | } | |
333 | ||
ac0be2ac | 334 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
335 | { |
336 | struct dirent *dir; | |
337 | struct stat st; | |
338 | int found = 0; | |
339 | DIR *D; | |
340 | ||
341 | D = opendir(path); | |
342 | if (!D) | |
343 | return 0; | |
344 | ||
345 | while ((dir = readdir(D)) != NULL) { | |
346 | char full_path[256]; | |
347 | ||
348 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
349 | continue; | |
350 | ||
b9fd788f | 351 | sprintf(full_path, "%s%s%s", path, FIO_OS_PATH_SEPARATOR, dir->d_name); |
9f8f2064 JA |
352 | |
353 | if (!strcmp(dir->d_name, "dev")) { | |
354 | if (!check_dev_match(majdev, mindev, full_path)) { | |
355 | found = 1; | |
356 | break; | |
357 | } | |
358 | } | |
359 | ||
ac0be2ac JA |
360 | if (link_ok) { |
361 | if (stat(full_path, &st) == -1) { | |
362 | perror("stat"); | |
363 | break; | |
364 | } | |
365 | } else { | |
366 | if (lstat(full_path, &st) == -1) { | |
367 | perror("stat"); | |
368 | break; | |
369 | } | |
9f8f2064 JA |
370 | } |
371 | ||
372 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
373 | continue; | |
374 | ||
ac0be2ac | 375 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
376 | if (found) { |
377 | strcpy(path, full_path); | |
378 | break; | |
379 | } | |
380 | } | |
381 | ||
382 | closedir(D); | |
383 | return found; | |
384 | } | |
385 | ||
c97bd0fa JA |
386 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
387 | int majdev, int mindev, | |
388 | char *path) | |
9f8f2064 JA |
389 | { |
390 | struct stat st; | |
67423013 | 391 | char tmp[PATH_MAX]; |
9f8f2064 JA |
392 | char *p; |
393 | ||
67423013 ST |
394 | /* |
395 | * If there's a ../queue/ directory there, we are inside a partition. | |
396 | * Check if that is the case and jump back. For loop/md/dm etc we | |
397 | * are already in the right spot. | |
398 | */ | |
399 | sprintf(tmp, "%s/../queue", path); | |
400 | if (!stat(tmp, &st)) { | |
401 | p = dirname(path); | |
402 | sprintf(tmp, "%s/queue", p); | |
403 | if (stat(tmp, &st)) { | |
404 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 405 | return NULL; |
9f8f2064 | 406 | } |
67423013 ST |
407 | strncpy(tmp, p, PATH_MAX - 1); |
408 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
409 | } |
410 | ||
67423013 ST |
411 | if (td->o.ioscheduler && !td->sysfs_root) |
412 | td->sysfs_root = strdup(path); | |
413 | ||
c97bd0fa | 414 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
415 | } |
416 | ||
c97bd0fa JA |
417 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
418 | char *filename) | |
67423013 ST |
419 | { |
420 | ||
421 | char foo[PATH_MAX]; | |
422 | struct disk_util *du; | |
423 | int mindev, majdev; | |
424 | ||
c97bd0fa JA |
425 | if (get_device_numbers(filename, &majdev, &mindev)) |
426 | return NULL; | |
67423013 ST |
427 | |
428 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
429 | mindev); | |
cd991b9e | 430 | |
e11c410c JA |
431 | du = disk_util_exists(majdev, mindev); |
432 | if (du) { | |
433 | if (td->o.ioscheduler && !td->sysfs_root) | |
434 | td->sysfs_root = strdup(du->sysfs_root); | |
435 | ||
c97bd0fa | 436 | return du; |
e11c410c | 437 | } |
9f8f2064 JA |
438 | |
439 | /* | |
440 | * for an fs without a device, we will repeatedly stat through | |
441 | * sysfs which can take oodles of time for thousands of files. so | |
442 | * cache the last lookup and compare with that before going through | |
443 | * everything again. | |
444 | */ | |
445 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 446 | return last_du; |
9f8f2064 JA |
447 | |
448 | last_mindev = mindev; | |
449 | last_majdev = majdev; | |
5ec10eaa | 450 | |
9f8f2064 | 451 | sprintf(foo, "/sys/block"); |
ac0be2ac | 452 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 453 | return NULL; |
9f8f2064 | 454 | |
c97bd0fa | 455 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 456 | } |
9f8f2064 | 457 | |
c97bd0fa JA |
458 | static struct disk_util *__init_disk_util(struct thread_data *td, |
459 | struct fio_file *f) | |
67423013 ST |
460 | { |
461 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
462 | } |
463 | ||
464 | void init_disk_util(struct thread_data *td) | |
465 | { | |
466 | struct fio_file *f; | |
467 | unsigned int i; | |
468 | ||
469 | if (!td->o.do_disk_util || | |
470 | (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) | |
471 | return; | |
472 | ||
473 | for_each_file(td, f, i) | |
c97bd0fa | 474 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
475 | } |
476 | ||
f2f788dd | 477 | static void show_agg_stats(struct disk_util_agg *agg, int terse) |
d09a64a0 JA |
478 | { |
479 | if (!agg->slavecount) | |
480 | return; | |
481 | ||
f2f788dd JA |
482 | if (!terse) { |
483 | log_info(", aggrios=%u/%u, aggrmerge=%u/%u, aggrticks=%u/%u," | |
484 | " aggrin_queue=%u, aggrutil=%3.2f%%", | |
485 | agg->ios[0] / agg->slavecount, | |
486 | agg->ios[1] / agg->slavecount, | |
487 | agg->merges[0] / agg->slavecount, | |
488 | agg->merges[1] / agg->slavecount, | |
489 | agg->ticks[0] / agg->slavecount, | |
490 | agg->ticks[1] / agg->slavecount, | |
491 | agg->time_in_queue / agg->slavecount, | |
492 | agg->max_util.u.f); | |
493 | } else { | |
97b007ec | 494 | log_info(";slaves;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
f2f788dd JA |
495 | agg->ios[0] / agg->slavecount, |
496 | agg->ios[1] / agg->slavecount, | |
497 | agg->merges[0] / agg->slavecount, | |
498 | agg->merges[1] / agg->slavecount, | |
499 | agg->ticks[0] / agg->slavecount, | |
500 | agg->ticks[1] / agg->slavecount, | |
501 | agg->time_in_queue / agg->slavecount, | |
502 | agg->max_util.u.f); | |
503 | } | |
d09a64a0 JA |
504 | } |
505 | ||
043b74b9 ST |
506 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
507 | { | |
d09a64a0 | 508 | struct disk_util_agg *agg = &masterdu->agg; |
043b74b9 ST |
509 | struct disk_util_stat *dus; |
510 | struct flist_head *entry; | |
511 | struct disk_util *slavedu; | |
d09a64a0 | 512 | double util; |
043b74b9 ST |
513 | |
514 | flist_for_each(entry, &masterdu->slaves) { | |
515 | slavedu = flist_entry(entry, struct disk_util, slavelist); | |
516 | dus = &slavedu->dus; | |
d09a64a0 JA |
517 | agg->ios[0] += dus->ios[0]; |
518 | agg->ios[1] += dus->ios[1]; | |
519 | agg->merges[0] += dus->merges[0]; | |
520 | agg->merges[1] += dus->merges[1]; | |
521 | agg->sectors[0] += dus->sectors[0]; | |
522 | agg->sectors[1] += dus->sectors[1]; | |
523 | agg->ticks[0] += dus->ticks[0]; | |
524 | agg->ticks[1] += dus->ticks[1]; | |
525 | agg->time_in_queue += dus->time_in_queue; | |
526 | agg->slavecount++; | |
527 | ||
528 | util = (double) (100 * dus->io_ticks / (double) slavedu->dus.msec); | |
043b74b9 ST |
529 | /* System utilization is the utilization of the |
530 | * component with the highest utilization. | |
531 | */ | |
d09a64a0 JA |
532 | if (util > agg->max_util.u.f) |
533 | agg->max_util.u.f = util; | |
043b74b9 ST |
534 | |
535 | } | |
536 | ||
d09a64a0 JA |
537 | if (agg->max_util.u.f > 100.0) |
538 | agg->max_util.u.f = 100.0; | |
539 | } | |
540 | ||
27357187 | 541 | void disk_util_prune_entries(void) |
d09a64a0 | 542 | { |
9ec7779f JA |
543 | fio_mutex_down(disk_util_mutex); |
544 | ||
d09a64a0 | 545 | while (!flist_empty(&disk_list)) { |
27357187 JA |
546 | struct disk_util *du; |
547 | ||
d09a64a0 JA |
548 | du = flist_entry(disk_list.next, struct disk_util, list); |
549 | flist_del(&du->list); | |
550 | disk_util_free(du); | |
551 | } | |
043b74b9 | 552 | |
d09a64a0 | 553 | last_majdev = last_mindev = -1; |
9ec7779f JA |
554 | fio_mutex_up(disk_util_mutex); |
555 | fio_mutex_remove(disk_util_mutex); | |
d09a64a0 JA |
556 | } |
557 | ||
f2f788dd JA |
558 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
559 | int terse) | |
d09a64a0 | 560 | { |
6914f59e | 561 | double util = 0; |
d09a64a0 | 562 | |
6914f59e JA |
563 | if (dus->msec) |
564 | util = (double) 100 * dus->io_ticks / (double) dus->msec; | |
d09a64a0 JA |
565 | if (util > 100.0) |
566 | util = 100.0; | |
567 | ||
f2f788dd | 568 | if (!terse) { |
f1d64553 JA |
569 | if (agg->slavecount) |
570 | log_info(" "); | |
571 | ||
f2f788dd JA |
572 | log_info(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, " |
573 | "in_queue=%u, util=%3.2f%%", dus->name, | |
d09a64a0 JA |
574 | dus->ios[0], dus->ios[1], |
575 | dus->merges[0], dus->merges[1], | |
576 | dus->ticks[0], dus->ticks[1], | |
577 | dus->time_in_queue, util); | |
f2f788dd | 578 | } else { |
3d7cd9b4 | 579 | log_info(";%s;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
f2f788dd JA |
580 | dus->name, dus->ios[0], dus->ios[1], |
581 | dus->merges[0], dus->merges[1], | |
582 | dus->ticks[0], dus->ticks[1], | |
583 | dus->time_in_queue, util); | |
584 | } | |
d09a64a0 JA |
585 | |
586 | /* | |
587 | * If the device has slaves, aggregate the stats for | |
588 | * those slave devices also. | |
589 | */ | |
f1d64553 | 590 | show_agg_stats(agg, terse); |
d09a64a0 | 591 | |
f2f788dd JA |
592 | if (!terse) |
593 | log_info("\n"); | |
043b74b9 ST |
594 | } |
595 | ||
cc372b17 SL |
596 | static void print_disk_util_json(struct disk_util *du, struct json_array *array) |
597 | { | |
598 | double util = 0; | |
599 | struct disk_util_stat *dus = &du->dus; | |
600 | struct disk_util_agg *agg = &du->agg; | |
601 | struct json_object *obj; | |
602 | ||
603 | obj = json_create_object(); | |
604 | json_array_add_value_object(array, obj); | |
605 | ||
606 | if (dus->msec) | |
607 | util = (double) 100 * dus->io_ticks / (double) dus->msec; | |
608 | if (util > 100.0) | |
609 | util = 100.0; | |
610 | ||
611 | ||
612 | json_object_add_value_string(obj, "name", dus->name); | |
613 | json_object_add_value_int(obj, "read_ios", dus->ios[0]); | |
614 | json_object_add_value_int(obj, "write_ios", dus->ios[1]); | |
615 | json_object_add_value_int(obj, "read_merges", dus->merges[0]); | |
616 | json_object_add_value_int(obj, "write_merges", dus->merges[1]); | |
617 | json_object_add_value_int(obj, "read_ticks", dus->ticks[0]); | |
618 | json_object_add_value_int(obj, "write_ticks", dus->ticks[1]); | |
619 | json_object_add_value_int(obj, "in_queue", dus->time_in_queue); | |
620 | json_object_add_value_float(obj, "util", util); | |
621 | ||
622 | /* | |
623 | * If the device has slaves, aggregate the stats for | |
624 | * those slave devices also. | |
625 | */ | |
626 | if (!agg->slavecount) | |
627 | return; | |
628 | json_object_add_value_int(obj, "aggr_read_ios", | |
629 | agg->ios[0] / agg->slavecount); | |
630 | json_object_add_value_int(obj, "aggr_write_ios", | |
631 | agg->ios[1] / agg->slavecount); | |
632 | json_object_add_value_int(obj, "aggr_read_merges", | |
633 | agg->merges[0] / agg->slavecount); | |
634 | json_object_add_value_int(obj, "aggr_write_merge", | |
635 | agg->merges[1] / agg->slavecount); | |
636 | json_object_add_value_int(obj, "aggr_read_ticks", | |
637 | agg->ticks[0] / agg->slavecount); | |
638 | json_object_add_value_int(obj, "aggr_write_ticks", | |
639 | agg->ticks[1] / agg->slavecount); | |
640 | json_object_add_value_int(obj, "aggr_in_queue", | |
641 | agg->time_in_queue / agg->slavecount); | |
642 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); | |
643 | } | |
644 | ||
645 | void show_disk_util(int terse, struct json_object *parent) | |
9f8f2064 | 646 | { |
d09a64a0 | 647 | struct flist_head *entry; |
9f8f2064 | 648 | struct disk_util *du; |
cc372b17 | 649 | struct json_array *array = NULL; |
9f8f2064 | 650 | |
9ec7779f JA |
651 | fio_mutex_down(disk_util_mutex); |
652 | ||
653 | if (flist_empty(&disk_list)) { | |
654 | fio_mutex_up(disk_util_mutex); | |
0a839f30 | 655 | return; |
9ec7779f | 656 | } |
0a839f30 | 657 | |
f2f788dd JA |
658 | if (!terse) |
659 | log_info("\nDisk stats (read/write):\n"); | |
9f8f2064 | 660 | |
aeb32dfc | 661 | if (output_format == FIO_OUTPUT_JSON) { |
cc372b17 SL |
662 | array = json_create_array(); |
663 | json_object_add_value_array(parent, "disk_util", array); | |
664 | } | |
665 | ||
01743ee1 JA |
666 | flist_for_each(entry, &disk_list) { |
667 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 668 | |
d09a64a0 | 669 | aggregate_slaves_stats(du); |
aeb32dfc | 670 | if (output_format == FIO_OUTPUT_JSON) |
cc372b17 SL |
671 | print_disk_util_json(du, array); |
672 | else | |
673 | print_disk_util(&du->dus, &du->agg, terse); | |
9f8f2064 | 674 | } |
9ec7779f JA |
675 | |
676 | fio_mutex_up(disk_util_mutex); | |
677 | } | |
678 | ||
679 | void setup_disk_util(void) | |
680 | { | |
521da527 | 681 | disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
9f8f2064 | 682 | } |