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; |
4b919f77 | 279 | int l; |
9f8f2064 | 280 | |
cd991b9e JA |
281 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
282 | ||
c97bd0fa | 283 | du = smalloc(sizeof(*du)); |
fba5c5ff JA |
284 | if (!du) { |
285 | log_err("fio: smalloc() pool exhausted\n"); | |
286 | return NULL; | |
287 | } | |
288 | ||
9f8f2064 | 289 | memset(du, 0, sizeof(*du)); |
01743ee1 | 290 | INIT_FLIST_HEAD(&du->list); |
4b919f77 KR |
291 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
292 | if (l < 0 || l >= sizeof(du->path)) { | |
293 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", | |
294 | path, sizeof(du->path) - 1); | |
295 | sfree(du); | |
296 | return NULL; | |
297 | } | |
d09a64a0 | 298 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ); |
e11c410c | 299 | du->sysfs_root = path; |
9f8f2064 JA |
300 | du->major = majdev; |
301 | du->minor = mindev; | |
67423013 ST |
302 | INIT_FLIST_HEAD(&du->slavelist); |
303 | INIT_FLIST_HEAD(&du->slaves); | |
521da527 | 304 | du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
c97bd0fa | 305 | du->users = 0; |
9f8f2064 | 306 | |
9ec7779f JA |
307 | fio_mutex_down(disk_util_mutex); |
308 | ||
01743ee1 JA |
309 | flist_for_each(entry, &disk_list) { |
310 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 311 | |
d09a64a0 | 312 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 313 | |
d09a64a0 | 314 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 315 | disk_util_free(du); |
9ec7779f | 316 | fio_mutex_up(disk_util_mutex); |
c97bd0fa | 317 | return __du; |
9f8f2064 JA |
318 | } |
319 | } | |
320 | ||
d09a64a0 | 321 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 322 | |
9f8f2064 JA |
323 | fio_gettime(&du->time, NULL); |
324 | get_io_ticks(du, &du->last_dus); | |
325 | ||
01743ee1 | 326 | flist_add_tail(&du->list, &disk_list); |
9ec7779f JA |
327 | fio_mutex_up(disk_util_mutex); |
328 | ||
67423013 | 329 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 330 | return du; |
9f8f2064 JA |
331 | } |
332 | ||
333 | static int check_dev_match(int majdev, int mindev, char *path) | |
334 | { | |
335 | int major, minor; | |
9f8f2064 | 336 | |
67423013 | 337 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 338 | return 1; |
9f8f2064 | 339 | |
c97bd0fa | 340 | if (majdev == major && mindev == minor) |
9f8f2064 | 341 | return 0; |
9f8f2064 | 342 | |
9f8f2064 JA |
343 | return 1; |
344 | } | |
345 | ||
ac0be2ac | 346 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
347 | { |
348 | struct dirent *dir; | |
349 | struct stat st; | |
350 | int found = 0; | |
351 | DIR *D; | |
352 | ||
353 | D = opendir(path); | |
354 | if (!D) | |
355 | return 0; | |
356 | ||
357 | while ((dir = readdir(D)) != NULL) { | |
358 | char full_path[256]; | |
359 | ||
360 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
361 | continue; | |
362 | ||
b9fd788f | 363 | sprintf(full_path, "%s%s%s", path, FIO_OS_PATH_SEPARATOR, dir->d_name); |
9f8f2064 JA |
364 | |
365 | if (!strcmp(dir->d_name, "dev")) { | |
366 | if (!check_dev_match(majdev, mindev, full_path)) { | |
367 | found = 1; | |
368 | break; | |
369 | } | |
370 | } | |
371 | ||
ac0be2ac JA |
372 | if (link_ok) { |
373 | if (stat(full_path, &st) == -1) { | |
374 | perror("stat"); | |
375 | break; | |
376 | } | |
377 | } else { | |
378 | if (lstat(full_path, &st) == -1) { | |
379 | perror("stat"); | |
380 | break; | |
381 | } | |
9f8f2064 JA |
382 | } |
383 | ||
384 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
385 | continue; | |
386 | ||
ac0be2ac | 387 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
388 | if (found) { |
389 | strcpy(path, full_path); | |
390 | break; | |
391 | } | |
392 | } | |
393 | ||
394 | closedir(D); | |
395 | return found; | |
396 | } | |
397 | ||
c97bd0fa JA |
398 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
399 | int majdev, int mindev, | |
400 | char *path) | |
9f8f2064 JA |
401 | { |
402 | struct stat st; | |
67423013 | 403 | char tmp[PATH_MAX]; |
9f8f2064 JA |
404 | char *p; |
405 | ||
67423013 ST |
406 | /* |
407 | * If there's a ../queue/ directory there, we are inside a partition. | |
408 | * Check if that is the case and jump back. For loop/md/dm etc we | |
409 | * are already in the right spot. | |
410 | */ | |
411 | sprintf(tmp, "%s/../queue", path); | |
412 | if (!stat(tmp, &st)) { | |
413 | p = dirname(path); | |
414 | sprintf(tmp, "%s/queue", p); | |
415 | if (stat(tmp, &st)) { | |
416 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 417 | return NULL; |
9f8f2064 | 418 | } |
67423013 ST |
419 | strncpy(tmp, p, PATH_MAX - 1); |
420 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
421 | } |
422 | ||
67423013 ST |
423 | if (td->o.ioscheduler && !td->sysfs_root) |
424 | td->sysfs_root = strdup(path); | |
425 | ||
c97bd0fa | 426 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
427 | } |
428 | ||
c97bd0fa JA |
429 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
430 | char *filename) | |
67423013 ST |
431 | { |
432 | ||
433 | char foo[PATH_MAX]; | |
434 | struct disk_util *du; | |
435 | int mindev, majdev; | |
436 | ||
c97bd0fa JA |
437 | if (get_device_numbers(filename, &majdev, &mindev)) |
438 | return NULL; | |
67423013 ST |
439 | |
440 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
441 | mindev); | |
cd991b9e | 442 | |
e11c410c JA |
443 | du = disk_util_exists(majdev, mindev); |
444 | if (du) { | |
445 | if (td->o.ioscheduler && !td->sysfs_root) | |
446 | td->sysfs_root = strdup(du->sysfs_root); | |
447 | ||
c97bd0fa | 448 | return du; |
e11c410c | 449 | } |
9f8f2064 JA |
450 | |
451 | /* | |
452 | * for an fs without a device, we will repeatedly stat through | |
453 | * sysfs which can take oodles of time for thousands of files. so | |
454 | * cache the last lookup and compare with that before going through | |
455 | * everything again. | |
456 | */ | |
457 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 458 | return last_du; |
9f8f2064 JA |
459 | |
460 | last_mindev = mindev; | |
461 | last_majdev = majdev; | |
5ec10eaa | 462 | |
9f8f2064 | 463 | sprintf(foo, "/sys/block"); |
ac0be2ac | 464 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 465 | return NULL; |
9f8f2064 | 466 | |
c97bd0fa | 467 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 468 | } |
9f8f2064 | 469 | |
c97bd0fa JA |
470 | static struct disk_util *__init_disk_util(struct thread_data *td, |
471 | struct fio_file *f) | |
67423013 ST |
472 | { |
473 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
474 | } |
475 | ||
476 | void init_disk_util(struct thread_data *td) | |
477 | { | |
478 | struct fio_file *f; | |
479 | unsigned int i; | |
480 | ||
481 | if (!td->o.do_disk_util || | |
482 | (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) | |
483 | return; | |
484 | ||
485 | for_each_file(td, f, i) | |
c97bd0fa | 486 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
487 | } |
488 | ||
f2f788dd | 489 | static void show_agg_stats(struct disk_util_agg *agg, int terse) |
d09a64a0 JA |
490 | { |
491 | if (!agg->slavecount) | |
492 | return; | |
493 | ||
f2f788dd JA |
494 | if (!terse) { |
495 | log_info(", aggrios=%u/%u, aggrmerge=%u/%u, aggrticks=%u/%u," | |
496 | " aggrin_queue=%u, aggrutil=%3.2f%%", | |
497 | agg->ios[0] / agg->slavecount, | |
498 | agg->ios[1] / agg->slavecount, | |
499 | agg->merges[0] / agg->slavecount, | |
500 | agg->merges[1] / agg->slavecount, | |
501 | agg->ticks[0] / agg->slavecount, | |
502 | agg->ticks[1] / agg->slavecount, | |
503 | agg->time_in_queue / agg->slavecount, | |
504 | agg->max_util.u.f); | |
505 | } else { | |
97b007ec | 506 | log_info(";slaves;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
f2f788dd JA |
507 | agg->ios[0] / agg->slavecount, |
508 | agg->ios[1] / agg->slavecount, | |
509 | agg->merges[0] / agg->slavecount, | |
510 | agg->merges[1] / agg->slavecount, | |
511 | agg->ticks[0] / agg->slavecount, | |
512 | agg->ticks[1] / agg->slavecount, | |
513 | agg->time_in_queue / agg->slavecount, | |
514 | agg->max_util.u.f); | |
515 | } | |
d09a64a0 JA |
516 | } |
517 | ||
043b74b9 ST |
518 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
519 | { | |
d09a64a0 | 520 | struct disk_util_agg *agg = &masterdu->agg; |
043b74b9 ST |
521 | struct disk_util_stat *dus; |
522 | struct flist_head *entry; | |
523 | struct disk_util *slavedu; | |
d09a64a0 | 524 | double util; |
043b74b9 ST |
525 | |
526 | flist_for_each(entry, &masterdu->slaves) { | |
527 | slavedu = flist_entry(entry, struct disk_util, slavelist); | |
528 | dus = &slavedu->dus; | |
d09a64a0 JA |
529 | agg->ios[0] += dus->ios[0]; |
530 | agg->ios[1] += dus->ios[1]; | |
531 | agg->merges[0] += dus->merges[0]; | |
532 | agg->merges[1] += dus->merges[1]; | |
533 | agg->sectors[0] += dus->sectors[0]; | |
534 | agg->sectors[1] += dus->sectors[1]; | |
535 | agg->ticks[0] += dus->ticks[0]; | |
536 | agg->ticks[1] += dus->ticks[1]; | |
537 | agg->time_in_queue += dus->time_in_queue; | |
538 | agg->slavecount++; | |
539 | ||
540 | util = (double) (100 * dus->io_ticks / (double) slavedu->dus.msec); | |
043b74b9 ST |
541 | /* System utilization is the utilization of the |
542 | * component with the highest utilization. | |
543 | */ | |
d09a64a0 JA |
544 | if (util > agg->max_util.u.f) |
545 | agg->max_util.u.f = util; | |
043b74b9 ST |
546 | |
547 | } | |
548 | ||
d09a64a0 JA |
549 | if (agg->max_util.u.f > 100.0) |
550 | agg->max_util.u.f = 100.0; | |
551 | } | |
552 | ||
27357187 | 553 | void disk_util_prune_entries(void) |
d09a64a0 | 554 | { |
9ec7779f JA |
555 | fio_mutex_down(disk_util_mutex); |
556 | ||
d09a64a0 | 557 | while (!flist_empty(&disk_list)) { |
27357187 JA |
558 | struct disk_util *du; |
559 | ||
d09a64a0 JA |
560 | du = flist_entry(disk_list.next, struct disk_util, list); |
561 | flist_del(&du->list); | |
562 | disk_util_free(du); | |
563 | } | |
043b74b9 | 564 | |
d09a64a0 | 565 | last_majdev = last_mindev = -1; |
9ec7779f JA |
566 | fio_mutex_up(disk_util_mutex); |
567 | fio_mutex_remove(disk_util_mutex); | |
d09a64a0 JA |
568 | } |
569 | ||
f2f788dd JA |
570 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
571 | int terse) | |
d09a64a0 | 572 | { |
6914f59e | 573 | double util = 0; |
d09a64a0 | 574 | |
6914f59e JA |
575 | if (dus->msec) |
576 | util = (double) 100 * dus->io_ticks / (double) dus->msec; | |
d09a64a0 JA |
577 | if (util > 100.0) |
578 | util = 100.0; | |
579 | ||
f2f788dd | 580 | if (!terse) { |
f1d64553 JA |
581 | if (agg->slavecount) |
582 | log_info(" "); | |
583 | ||
f2f788dd JA |
584 | log_info(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, " |
585 | "in_queue=%u, util=%3.2f%%", dus->name, | |
d09a64a0 JA |
586 | dus->ios[0], dus->ios[1], |
587 | dus->merges[0], dus->merges[1], | |
588 | dus->ticks[0], dus->ticks[1], | |
589 | dus->time_in_queue, util); | |
f2f788dd | 590 | } else { |
3d7cd9b4 | 591 | log_info(";%s;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
f2f788dd JA |
592 | dus->name, dus->ios[0], dus->ios[1], |
593 | dus->merges[0], dus->merges[1], | |
594 | dus->ticks[0], dus->ticks[1], | |
595 | dus->time_in_queue, util); | |
596 | } | |
d09a64a0 JA |
597 | |
598 | /* | |
599 | * If the device has slaves, aggregate the stats for | |
600 | * those slave devices also. | |
601 | */ | |
f1d64553 | 602 | show_agg_stats(agg, terse); |
d09a64a0 | 603 | |
f2f788dd JA |
604 | if (!terse) |
605 | log_info("\n"); | |
043b74b9 ST |
606 | } |
607 | ||
952b05e0 CF |
608 | void json_array_add_disk_util(struct disk_util_stat *dus, |
609 | struct disk_util_agg *agg, struct json_array *array) | |
cc372b17 | 610 | { |
cc372b17 | 611 | struct json_object *obj; |
952b05e0 | 612 | double util = 0; |
cc372b17 SL |
613 | |
614 | if (dus->msec) | |
615 | util = (double) 100 * dus->io_ticks / (double) dus->msec; | |
616 | if (util > 100.0) | |
617 | util = 100.0; | |
618 | ||
952b05e0 CF |
619 | obj = json_create_object(); |
620 | json_array_add_value_object(array, obj); | |
cc372b17 SL |
621 | |
622 | json_object_add_value_string(obj, "name", dus->name); | |
623 | json_object_add_value_int(obj, "read_ios", dus->ios[0]); | |
624 | json_object_add_value_int(obj, "write_ios", dus->ios[1]); | |
625 | json_object_add_value_int(obj, "read_merges", dus->merges[0]); | |
626 | json_object_add_value_int(obj, "write_merges", dus->merges[1]); | |
627 | json_object_add_value_int(obj, "read_ticks", dus->ticks[0]); | |
628 | json_object_add_value_int(obj, "write_ticks", dus->ticks[1]); | |
629 | json_object_add_value_int(obj, "in_queue", dus->time_in_queue); | |
630 | json_object_add_value_float(obj, "util", util); | |
631 | ||
632 | /* | |
633 | * If the device has slaves, aggregate the stats for | |
634 | * those slave devices also. | |
635 | */ | |
636 | if (!agg->slavecount) | |
637 | return; | |
638 | json_object_add_value_int(obj, "aggr_read_ios", | |
639 | agg->ios[0] / agg->slavecount); | |
640 | json_object_add_value_int(obj, "aggr_write_ios", | |
641 | agg->ios[1] / agg->slavecount); | |
642 | json_object_add_value_int(obj, "aggr_read_merges", | |
643 | agg->merges[0] / agg->slavecount); | |
644 | json_object_add_value_int(obj, "aggr_write_merge", | |
645 | agg->merges[1] / agg->slavecount); | |
646 | json_object_add_value_int(obj, "aggr_read_ticks", | |
647 | agg->ticks[0] / agg->slavecount); | |
648 | json_object_add_value_int(obj, "aggr_write_ticks", | |
649 | agg->ticks[1] / agg->slavecount); | |
650 | json_object_add_value_int(obj, "aggr_in_queue", | |
651 | agg->time_in_queue / agg->slavecount); | |
652 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); | |
653 | } | |
654 | ||
952b05e0 CF |
655 | void json_object_add_disk_utils(struct json_object *obj, |
656 | struct flist_head *head) | |
657 | { | |
658 | struct json_array *array = json_create_array(); | |
659 | struct flist_head *entry; | |
660 | struct disk_util *du; | |
661 | ||
662 | json_object_add_value_array(obj, "disk_util", array); | |
663 | ||
664 | flist_for_each(entry, head) { | |
665 | du = flist_entry(entry, struct disk_util, list); | |
666 | ||
667 | aggregate_slaves_stats(du); | |
668 | json_array_add_disk_util(&du->dus, &du->agg, array); | |
669 | } | |
670 | } | |
671 | ||
cc372b17 | 672 | void show_disk_util(int terse, struct json_object *parent) |
9f8f2064 | 673 | { |
d09a64a0 | 674 | struct flist_head *entry; |
9f8f2064 | 675 | struct disk_util *du; |
9f8f2064 | 676 | |
9ec7779f JA |
677 | fio_mutex_down(disk_util_mutex); |
678 | ||
679 | if (flist_empty(&disk_list)) { | |
680 | fio_mutex_up(disk_util_mutex); | |
0a839f30 | 681 | return; |
9ec7779f | 682 | } |
0a839f30 | 683 | |
952b05e0 | 684 | if (!terse && !parent) |
f2f788dd | 685 | log_info("\nDisk stats (read/write):\n"); |
9f8f2064 | 686 | |
aeb32dfc | 687 | if (output_format == FIO_OUTPUT_JSON) { |
952b05e0 CF |
688 | json_object_add_disk_utils(parent, &disk_list); |
689 | } else | |
690 | flist_for_each(entry, &disk_list) { | |
691 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 692 | |
952b05e0 | 693 | aggregate_slaves_stats(du); |
cc372b17 | 694 | print_disk_util(&du->dus, &du->agg, terse); |
952b05e0 | 695 | } |
9ec7779f JA |
696 | |
697 | fio_mutex_up(disk_util_mutex); | |
698 | } | |
699 | ||
700 | void setup_disk_util(void) | |
701 | { | |
521da527 | 702 | disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
9f8f2064 | 703 | } |