Commit | Line | Data |
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9f8f2064 JA |
1 | #include <stdio.h> |
2 | #include <string.h> | |
9f8f2064 JA |
3 | #include <sys/types.h> |
4 | #include <sys/stat.h> | |
036a1599 | 5 | #include <sys/sysmacros.h> |
9f8f2064 JA |
6 | #include <dirent.h> |
7 | #include <libgen.h> | |
4f37732a BVA |
8 | #ifdef CONFIG_VALGRIND_DEV |
9 | #include <valgrind/drd.h> | |
10 | #else | |
11 | #define DRD_IGNORE_VAR(x) do { } while (0) | |
12 | #endif | |
9f8f2064 JA |
13 | |
14 | #include "fio.h" | |
c97bd0fa | 15 | #include "smalloc.h" |
7c9b1bce | 16 | #include "diskutil.h" |
a39fb9ea | 17 | #include "helper_thread.h" |
9f8f2064 JA |
18 | |
19 | static int last_majdev, last_mindev; | |
c97bd0fa | 20 | static struct disk_util *last_du; |
9f8f2064 | 21 | |
971caeb1 | 22 | static struct fio_sem *disk_util_sem; |
9ec7779f | 23 | |
2db4ecca JA |
24 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
25 | int majdev, int mindev, char *path); | |
26 | ||
c97bd0fa JA |
27 | static void disk_util_free(struct disk_util *du) |
28 | { | |
29 | if (du == last_du) | |
30 | last_du = NULL; | |
31 | ||
b8d541d5 JA |
32 | while (!flist_empty(&du->slaves)) { |
33 | struct disk_util *slave; | |
34 | ||
9342d5f8 | 35 | slave = flist_first_entry(&du->slaves, struct disk_util, slavelist); |
b8d541d5 JA |
36 | flist_del(&slave->slavelist); |
37 | slave->users--; | |
38 | } | |
93bcfd20 | 39 | |
971caeb1 | 40 | fio_sem_remove(du->lock); |
2a20eebc | 41 | free(du->sysfs_root); |
c97bd0fa JA |
42 | sfree(du); |
43 | } | |
44 | ||
9f8f2064 JA |
45 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
46 | { | |
47 | unsigned in_flight; | |
d09a64a0 | 48 | unsigned long long sectors[2]; |
9f8f2064 JA |
49 | char line[256]; |
50 | FILE *f; | |
51 | char *p; | |
5ec10eaa | 52 | int ret; |
9f8f2064 | 53 | |
cd991b9e JA |
54 | dprint(FD_DISKUTIL, "open stat file: %s\n", du->path); |
55 | ||
9f8f2064 JA |
56 | f = fopen(du->path, "r"); |
57 | if (!f) | |
58 | return 1; | |
59 | ||
60 | p = fgets(line, sizeof(line), f); | |
61 | if (!p) { | |
62 | fclose(f); | |
63 | return 1; | |
64 | } | |
65 | ||
cd991b9e JA |
66 | dprint(FD_DISKUTIL, "%s: %s", du->path, p); |
67 | ||
504bc961 JA |
68 | ret = sscanf(p, "%llu %llu %llu %llu %llu %llu %llu %llu %u %llu %llu\n", |
69 | (unsigned long long *) &dus->s.ios[0], | |
70 | (unsigned long long *) &dus->s.merges[0], | |
71 | §ors[0], | |
72 | (unsigned long long *) &dus->s.ticks[0], | |
73 | (unsigned long long *) &dus->s.ios[1], | |
74 | (unsigned long long *) &dus->s.merges[1], | |
75 | §ors[1], | |
76 | (unsigned long long *) &dus->s.ticks[1], | |
77 | &in_flight, | |
78 | (unsigned long long *) &dus->s.io_ticks, | |
79 | (unsigned long long *) &dus->s.time_in_queue); | |
9f8f2064 | 80 | fclose(f); |
cd991b9e | 81 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
a3b4cf7d JA |
82 | dus->s.sectors[0] = sectors[0]; |
83 | dus->s.sectors[1] = sectors[1]; | |
cd991b9e | 84 | return ret != 11; |
9f8f2064 JA |
85 | } |
86 | ||
87 | static void update_io_tick_disk(struct disk_util *du) | |
88 | { | |
89 | struct disk_util_stat __dus, *dus, *ldus; | |
8b6a404c | 90 | struct timespec t; |
9f8f2064 | 91 | |
c97bd0fa JA |
92 | if (!du->users) |
93 | return; | |
90b97ac3 JA |
94 | if (get_io_ticks(du, &__dus)) |
95 | return; | |
9f8f2064 JA |
96 | |
97 | dus = &du->dus; | |
98 | ldus = &du->last_dus; | |
99 | ||
a3b4cf7d JA |
100 | dus->s.sectors[0] += (__dus.s.sectors[0] - ldus->s.sectors[0]); |
101 | dus->s.sectors[1] += (__dus.s.sectors[1] - ldus->s.sectors[1]); | |
102 | dus->s.ios[0] += (__dus.s.ios[0] - ldus->s.ios[0]); | |
103 | dus->s.ios[1] += (__dus.s.ios[1] - ldus->s.ios[1]); | |
104 | dus->s.merges[0] += (__dus.s.merges[0] - ldus->s.merges[0]); | |
105 | dus->s.merges[1] += (__dus.s.merges[1] - ldus->s.merges[1]); | |
106 | dus->s.ticks[0] += (__dus.s.ticks[0] - ldus->s.ticks[0]); | |
107 | dus->s.ticks[1] += (__dus.s.ticks[1] - ldus->s.ticks[1]); | |
108 | dus->s.io_ticks += (__dus.s.io_ticks - ldus->s.io_ticks); | |
109 | dus->s.time_in_queue += (__dus.s.time_in_queue - ldus->s.time_in_queue); | |
9f8f2064 JA |
110 | |
111 | fio_gettime(&t, NULL); | |
a3b4cf7d | 112 | dus->s.msec += mtime_since(&du->time, &t); |
9f8f2064 | 113 | memcpy(&du->time, &t, sizeof(t)); |
a3b4cf7d | 114 | memcpy(&ldus->s, &__dus.s, sizeof(__dus.s)); |
9f8f2064 JA |
115 | } |
116 | ||
9ec7779f | 117 | int update_io_ticks(void) |
9f8f2064 | 118 | { |
01743ee1 | 119 | struct flist_head *entry; |
9f8f2064 | 120 | struct disk_util *du; |
9ec7779f | 121 | int ret = 0; |
9f8f2064 | 122 | |
cd991b9e JA |
123 | dprint(FD_DISKUTIL, "update io ticks\n"); |
124 | ||
971caeb1 | 125 | fio_sem_down(disk_util_sem); |
9ec7779f | 126 | |
a47591e4 | 127 | if (!helper_should_exit()) { |
9ec7779f JA |
128 | flist_for_each(entry, &disk_list) { |
129 | du = flist_entry(entry, struct disk_util, list); | |
130 | update_io_tick_disk(du); | |
131 | } | |
132 | } else | |
133 | ret = 1; | |
134 | ||
971caeb1 | 135 | fio_sem_up(disk_util_sem); |
9ec7779f | 136 | return ret; |
9f8f2064 JA |
137 | } |
138 | ||
e11c410c | 139 | static struct disk_util *disk_util_exists(int major, int minor) |
9f8f2064 | 140 | { |
01743ee1 | 141 | struct flist_head *entry; |
9f8f2064 JA |
142 | struct disk_util *du; |
143 | ||
971caeb1 | 144 | fio_sem_down(disk_util_sem); |
9ec7779f | 145 | |
01743ee1 JA |
146 | flist_for_each(entry, &disk_list) { |
147 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 148 | |
9ec7779f | 149 | if (major == du->major && minor == du->minor) { |
971caeb1 | 150 | fio_sem_up(disk_util_sem); |
e11c410c | 151 | return du; |
9ec7779f | 152 | } |
9f8f2064 JA |
153 | } |
154 | ||
971caeb1 | 155 | fio_sem_up(disk_util_sem); |
e11c410c | 156 | return NULL; |
9f8f2064 JA |
157 | } |
158 | ||
67423013 ST |
159 | static int get_device_numbers(char *file_name, int *maj, int *min) |
160 | { | |
161 | struct stat st; | |
162 | int majdev, mindev; | |
163 | char tempname[PATH_MAX], *p; | |
164 | ||
165 | if (!lstat(file_name, &st)) { | |
166 | if (S_ISBLK(st.st_mode)) { | |
167 | majdev = major(st.st_rdev); | |
168 | mindev = minor(st.st_rdev); | |
169 | } else if (S_ISCHR(st.st_mode)) { | |
170 | majdev = major(st.st_rdev); | |
171 | mindev = minor(st.st_rdev); | |
172 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) | |
173 | return -1; | |
174 | } else if (S_ISFIFO(st.st_mode)) | |
175 | return -1; | |
176 | else { | |
177 | majdev = major(st.st_dev); | |
178 | mindev = minor(st.st_dev); | |
179 | } | |
180 | } else { | |
181 | /* | |
182 | * must be a file, open "." in that path | |
183 | */ | |
087d0ed0 | 184 | tempname[PATH_MAX - 1] = '\0'; |
67423013 ST |
185 | strncpy(tempname, file_name, PATH_MAX - 1); |
186 | p = dirname(tempname); | |
187 | if (stat(p, &st)) { | |
188 | perror("disk util stat"); | |
189 | return -1; | |
190 | } | |
191 | ||
192 | majdev = major(st.st_dev); | |
193 | mindev = minor(st.st_dev); | |
194 | } | |
195 | ||
196 | *min = mindev; | |
197 | *maj = majdev; | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | static int read_block_dev_entry(char *path, int *maj, int *min) | |
203 | { | |
204 | char line[256], *p; | |
205 | FILE *f; | |
206 | ||
207 | f = fopen(path, "r"); | |
208 | if (!f) { | |
209 | perror("open path"); | |
210 | return 1; | |
211 | } | |
212 | ||
213 | p = fgets(line, sizeof(line), f); | |
214 | fclose(f); | |
215 | ||
216 | if (!p) | |
217 | return 1; | |
218 | ||
219 | if (sscanf(p, "%u:%u", maj, min) != 2) | |
220 | return 1; | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
67423013 | 225 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
2db4ecca | 226 | struct disk_util *masterdu) |
67423013 ST |
227 | { |
228 | DIR *dirhandle = NULL; | |
229 | struct dirent *dirent = NULL; | |
230 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; | |
231 | struct disk_util *slavedu = NULL; | |
232 | int majdev, mindev; | |
233 | ssize_t linklen; | |
234 | ||
2db4ecca | 235 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
67423013 ST |
236 | dirhandle = opendir(slavesdir); |
237 | if (!dirhandle) | |
238 | return; | |
239 | ||
240 | while ((dirent = readdir(dirhandle)) != NULL) { | |
2db4ecca JA |
241 | if (!strcmp(dirent->d_name, ".") || |
242 | !strcmp(dirent->d_name, "..")) | |
67423013 ST |
243 | continue; |
244 | ||
22497370 | 245 | sprintf(temppath, "%s/%s", slavesdir, dirent->d_name); |
67423013 ST |
246 | /* Can we always assume that the slaves device entries |
247 | * are links to the real directories for the slave | |
248 | * devices? | |
249 | */ | |
976406b8 | 250 | linklen = readlink(temppath, slavepath, PATH_MAX - 1); |
81286ecd | 251 | if (linklen < 0) { |
67423013 | 252 | perror("readlink() for slave device."); |
f0cc675f | 253 | closedir(dirhandle); |
67423013 ST |
254 | return; |
255 | } | |
2db4ecca | 256 | slavepath[linklen] = '\0'; |
67423013 ST |
257 | |
258 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); | |
75d5519d PBT |
259 | if (access(temppath, F_OK) != 0) |
260 | sprintf(temppath, "%s/%s/device/dev", slavesdir, slavepath); | |
67423013 | 261 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { |
81286ecd | 262 | perror("Error getting slave device numbers"); |
f0cc675f | 263 | closedir(dirhandle); |
67423013 ST |
264 | return; |
265 | } | |
266 | ||
b06de82e AB |
267 | /* |
268 | * See if this maj,min already exists | |
269 | */ | |
270 | slavedu = disk_util_exists(majdev, mindev); | |
271 | if (slavedu) | |
272 | continue; | |
273 | ||
22497370 | 274 | sprintf(temppath, "%s/%s", slavesdir, slavepath); |
67423013 ST |
275 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
276 | slavedu = disk_util_exists(majdev, mindev); | |
277 | ||
278 | /* Should probably use an assert here. slavedu should | |
279 | * always be present at this point. */ | |
b8d541d5 JA |
280 | if (slavedu) { |
281 | slavedu->users++; | |
67423013 | 282 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
b8d541d5 | 283 | } |
67423013 ST |
284 | } |
285 | ||
286 | closedir(dirhandle); | |
67423013 ST |
287 | } |
288 | ||
b8fefc2b | 289 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
c97bd0fa | 290 | int mindev, char *path) |
9f8f2064 JA |
291 | { |
292 | struct disk_util *du, *__du; | |
01743ee1 | 293 | struct flist_head *entry; |
4b919f77 | 294 | int l; |
9f8f2064 | 295 | |
cd991b9e JA |
296 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
297 | ||
c97bd0fa | 298 | du = smalloc(sizeof(*du)); |
81b3c86f | 299 | if (!du) |
fba5c5ff | 300 | return NULL; |
fba5c5ff | 301 | |
4f37732a | 302 | DRD_IGNORE_VAR(du->users); |
9f8f2064 | 303 | memset(du, 0, sizeof(*du)); |
01743ee1 | 304 | INIT_FLIST_HEAD(&du->list); |
4b919f77 KR |
305 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
306 | if (l < 0 || l >= sizeof(du->path)) { | |
307 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", | |
308 | path, sizeof(du->path) - 1); | |
309 | sfree(du); | |
310 | return NULL; | |
311 | } | |
a2ba41ed | 312 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ - 1); |
2a20eebc | 313 | du->sysfs_root = strdup(path); |
9f8f2064 JA |
314 | du->major = majdev; |
315 | du->minor = mindev; | |
67423013 ST |
316 | INIT_FLIST_HEAD(&du->slavelist); |
317 | INIT_FLIST_HEAD(&du->slaves); | |
971caeb1 | 318 | du->lock = fio_sem_init(FIO_SEM_UNLOCKED); |
c97bd0fa | 319 | du->users = 0; |
9f8f2064 | 320 | |
971caeb1 | 321 | fio_sem_down(disk_util_sem); |
9ec7779f | 322 | |
01743ee1 JA |
323 | flist_for_each(entry, &disk_list) { |
324 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 325 | |
d09a64a0 | 326 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 327 | |
d09a64a0 | 328 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 329 | disk_util_free(du); |
971caeb1 | 330 | fio_sem_up(disk_util_sem); |
c97bd0fa | 331 | return __du; |
9f8f2064 JA |
332 | } |
333 | } | |
334 | ||
d09a64a0 | 335 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 336 | |
9f8f2064 JA |
337 | fio_gettime(&du->time, NULL); |
338 | get_io_ticks(du, &du->last_dus); | |
339 | ||
01743ee1 | 340 | flist_add_tail(&du->list, &disk_list); |
971caeb1 | 341 | fio_sem_up(disk_util_sem); |
9ec7779f | 342 | |
67423013 | 343 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 344 | return du; |
9f8f2064 JA |
345 | } |
346 | ||
347 | static int check_dev_match(int majdev, int mindev, char *path) | |
348 | { | |
349 | int major, minor; | |
9f8f2064 | 350 | |
67423013 | 351 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 352 | return 1; |
9f8f2064 | 353 | |
c97bd0fa | 354 | if (majdev == major && mindev == minor) |
9f8f2064 | 355 | return 0; |
9f8f2064 | 356 | |
9f8f2064 JA |
357 | return 1; |
358 | } | |
359 | ||
ac0be2ac | 360 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
361 | { |
362 | struct dirent *dir; | |
363 | struct stat st; | |
364 | int found = 0; | |
365 | DIR *D; | |
366 | ||
367 | D = opendir(path); | |
368 | if (!D) | |
369 | return 0; | |
370 | ||
371 | while ((dir = readdir(D)) != NULL) { | |
5ccdfd74 | 372 | char full_path[257]; |
9f8f2064 JA |
373 | |
374 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
375 | continue; | |
376 | ||
22497370 | 377 | sprintf(full_path, "%s/%s", path, dir->d_name); |
9f8f2064 JA |
378 | |
379 | if (!strcmp(dir->d_name, "dev")) { | |
380 | if (!check_dev_match(majdev, mindev, full_path)) { | |
381 | found = 1; | |
382 | break; | |
383 | } | |
384 | } | |
385 | ||
ac0be2ac JA |
386 | if (link_ok) { |
387 | if (stat(full_path, &st) == -1) { | |
388 | perror("stat"); | |
389 | break; | |
390 | } | |
391 | } else { | |
392 | if (lstat(full_path, &st) == -1) { | |
393 | perror("stat"); | |
394 | break; | |
395 | } | |
9f8f2064 JA |
396 | } |
397 | ||
398 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
399 | continue; | |
400 | ||
ac0be2ac | 401 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
402 | if (found) { |
403 | strcpy(path, full_path); | |
404 | break; | |
405 | } | |
406 | } | |
407 | ||
408 | closedir(D); | |
409 | return found; | |
410 | } | |
411 | ||
c97bd0fa JA |
412 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
413 | int majdev, int mindev, | |
414 | char *path) | |
9f8f2064 JA |
415 | { |
416 | struct stat st; | |
67423013 | 417 | char tmp[PATH_MAX]; |
9f8f2064 JA |
418 | char *p; |
419 | ||
67423013 ST |
420 | /* |
421 | * If there's a ../queue/ directory there, we are inside a partition. | |
422 | * Check if that is the case and jump back. For loop/md/dm etc we | |
423 | * are already in the right spot. | |
424 | */ | |
425 | sprintf(tmp, "%s/../queue", path); | |
426 | if (!stat(tmp, &st)) { | |
427 | p = dirname(path); | |
428 | sprintf(tmp, "%s/queue", p); | |
429 | if (stat(tmp, &st)) { | |
430 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 431 | return NULL; |
9f8f2064 | 432 | } |
087d0ed0 | 433 | tmp[PATH_MAX - 1] = '\0'; |
67423013 ST |
434 | strncpy(tmp, p, PATH_MAX - 1); |
435 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
436 | } |
437 | ||
c97bd0fa | 438 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
439 | } |
440 | ||
c97bd0fa JA |
441 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
442 | char *filename) | |
67423013 ST |
443 | { |
444 | ||
445 | char foo[PATH_MAX]; | |
446 | struct disk_util *du; | |
447 | int mindev, majdev; | |
448 | ||
c97bd0fa JA |
449 | if (get_device_numbers(filename, &majdev, &mindev)) |
450 | return NULL; | |
67423013 ST |
451 | |
452 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
453 | mindev); | |
cd991b9e | 454 | |
e11c410c | 455 | du = disk_util_exists(majdev, mindev); |
bd4d9bdc | 456 | if (du) |
c97bd0fa | 457 | return du; |
9f8f2064 JA |
458 | |
459 | /* | |
460 | * for an fs without a device, we will repeatedly stat through | |
461 | * sysfs which can take oodles of time for thousands of files. so | |
462 | * cache the last lookup and compare with that before going through | |
463 | * everything again. | |
464 | */ | |
465 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 466 | return last_du; |
9f8f2064 JA |
467 | |
468 | last_mindev = mindev; | |
469 | last_majdev = majdev; | |
5ec10eaa | 470 | |
9f8f2064 | 471 | sprintf(foo, "/sys/block"); |
ac0be2ac | 472 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 473 | return NULL; |
9f8f2064 | 474 | |
c97bd0fa | 475 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 476 | } |
9f8f2064 | 477 | |
c97bd0fa JA |
478 | static struct disk_util *__init_disk_util(struct thread_data *td, |
479 | struct fio_file *f) | |
67423013 ST |
480 | { |
481 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
482 | } |
483 | ||
484 | void init_disk_util(struct thread_data *td) | |
485 | { | |
486 | struct fio_file *f; | |
487 | unsigned int i; | |
488 | ||
489 | if (!td->o.do_disk_util || | |
9b87f09b | 490 | td_ioengine_flagged(td, FIO_DISKLESSIO | FIO_NODISKUTIL)) |
9f8f2064 JA |
491 | return; |
492 | ||
493 | for_each_file(td, f, i) | |
c97bd0fa | 494 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
495 | } |
496 | ||
a666cab8 JA |
497 | static void show_agg_stats(struct disk_util_agg *agg, int terse, |
498 | struct buf_output *out) | |
d09a64a0 JA |
499 | { |
500 | if (!agg->slavecount) | |
501 | return; | |
502 | ||
f2f788dd | 503 | if (!terse) { |
a666cab8 | 504 | log_buf(out, ", aggrios=%llu/%llu, aggrmerge=%llu/%llu, " |
504bc961 JA |
505 | "aggrticks=%llu/%llu, aggrin_queue=%llu, " |
506 | "aggrutil=%3.2f%%", | |
507 | (unsigned long long) agg->ios[0] / agg->slavecount, | |
508 | (unsigned long long) agg->ios[1] / agg->slavecount, | |
509 | (unsigned long long) agg->merges[0] / agg->slavecount, | |
510 | (unsigned long long) agg->merges[1] / agg->slavecount, | |
511 | (unsigned long long) agg->ticks[0] / agg->slavecount, | |
512 | (unsigned long long) agg->ticks[1] / agg->slavecount, | |
513 | (unsigned long long) agg->time_in_queue / agg->slavecount, | |
514 | agg->max_util.u.f); | |
f2f788dd | 515 | } else { |
a666cab8 | 516 | log_buf(out, ";slaves;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
504bc961 JA |
517 | (unsigned long long) agg->ios[0] / agg->slavecount, |
518 | (unsigned long long) agg->ios[1] / agg->slavecount, | |
519 | (unsigned long long) agg->merges[0] / agg->slavecount, | |
520 | (unsigned long long) agg->merges[1] / agg->slavecount, | |
521 | (unsigned long long) agg->ticks[0] / agg->slavecount, | |
522 | (unsigned long long) agg->ticks[1] / agg->slavecount, | |
523 | (unsigned long long) agg->time_in_queue / agg->slavecount, | |
524 | agg->max_util.u.f); | |
f2f788dd | 525 | } |
d09a64a0 JA |
526 | } |
527 | ||
043b74b9 ST |
528 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
529 | { | |
d09a64a0 | 530 | struct disk_util_agg *agg = &masterdu->agg; |
043b74b9 ST |
531 | struct disk_util_stat *dus; |
532 | struct flist_head *entry; | |
533 | struct disk_util *slavedu; | |
d09a64a0 | 534 | double util; |
043b74b9 ST |
535 | |
536 | flist_for_each(entry, &masterdu->slaves) { | |
537 | slavedu = flist_entry(entry, struct disk_util, slavelist); | |
538 | dus = &slavedu->dus; | |
a3b4cf7d JA |
539 | agg->ios[0] += dus->s.ios[0]; |
540 | agg->ios[1] += dus->s.ios[1]; | |
541 | agg->merges[0] += dus->s.merges[0]; | |
542 | agg->merges[1] += dus->s.merges[1]; | |
543 | agg->sectors[0] += dus->s.sectors[0]; | |
544 | agg->sectors[1] += dus->s.sectors[1]; | |
545 | agg->ticks[0] += dus->s.ticks[0]; | |
546 | agg->ticks[1] += dus->s.ticks[1]; | |
547 | agg->time_in_queue += dus->s.time_in_queue; | |
d09a64a0 JA |
548 | agg->slavecount++; |
549 | ||
a3b4cf7d | 550 | util = (double) (100 * dus->s.io_ticks / (double) slavedu->dus.s.msec); |
043b74b9 ST |
551 | /* System utilization is the utilization of the |
552 | * component with the highest utilization. | |
553 | */ | |
d09a64a0 JA |
554 | if (util > agg->max_util.u.f) |
555 | agg->max_util.u.f = util; | |
043b74b9 ST |
556 | |
557 | } | |
558 | ||
d09a64a0 JA |
559 | if (agg->max_util.u.f > 100.0) |
560 | agg->max_util.u.f = 100.0; | |
561 | } | |
562 | ||
27357187 | 563 | void disk_util_prune_entries(void) |
d09a64a0 | 564 | { |
971caeb1 | 565 | fio_sem_down(disk_util_sem); |
9ec7779f | 566 | |
d09a64a0 | 567 | while (!flist_empty(&disk_list)) { |
27357187 JA |
568 | struct disk_util *du; |
569 | ||
9342d5f8 | 570 | du = flist_first_entry(&disk_list, struct disk_util, list); |
d09a64a0 JA |
571 | flist_del(&du->list); |
572 | disk_util_free(du); | |
573 | } | |
043b74b9 | 574 | |
d09a64a0 | 575 | last_majdev = last_mindev = -1; |
971caeb1 BVA |
576 | fio_sem_up(disk_util_sem); |
577 | fio_sem_remove(disk_util_sem); | |
d09a64a0 JA |
578 | } |
579 | ||
f2f788dd | 580 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
a666cab8 | 581 | int terse, struct buf_output *out) |
d09a64a0 | 582 | { |
6914f59e | 583 | double util = 0; |
d09a64a0 | 584 | |
a3b4cf7d JA |
585 | if (dus->s.msec) |
586 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
d09a64a0 JA |
587 | if (util > 100.0) |
588 | util = 100.0; | |
589 | ||
f2f788dd | 590 | if (!terse) { |
f1d64553 | 591 | if (agg->slavecount) |
a666cab8 | 592 | log_buf(out, " "); |
f1d64553 | 593 | |
a666cab8 | 594 | log_buf(out, " %s: ios=%llu/%llu, merge=%llu/%llu, " |
504bc961 JA |
595 | "ticks=%llu/%llu, in_queue=%llu, util=%3.2f%%", |
596 | dus->name, | |
597 | (unsigned long long) dus->s.ios[0], | |
598 | (unsigned long long) dus->s.ios[1], | |
599 | (unsigned long long) dus->s.merges[0], | |
600 | (unsigned long long) dus->s.merges[1], | |
601 | (unsigned long long) dus->s.ticks[0], | |
602 | (unsigned long long) dus->s.ticks[1], | |
603 | (unsigned long long) dus->s.time_in_queue, | |
604 | util); | |
f2f788dd | 605 | } else { |
a666cab8 | 606 | log_buf(out, ";%s;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
504bc961 JA |
607 | dus->name, |
608 | (unsigned long long) dus->s.ios[0], | |
609 | (unsigned long long) dus->s.ios[1], | |
610 | (unsigned long long) dus->s.merges[0], | |
611 | (unsigned long long) dus->s.merges[1], | |
612 | (unsigned long long) dus->s.ticks[0], | |
613 | (unsigned long long) dus->s.ticks[1], | |
614 | (unsigned long long) dus->s.time_in_queue, | |
615 | util); | |
f2f788dd | 616 | } |
d09a64a0 JA |
617 | |
618 | /* | |
619 | * If the device has slaves, aggregate the stats for | |
620 | * those slave devices also. | |
621 | */ | |
a666cab8 | 622 | show_agg_stats(agg, terse, out); |
d09a64a0 | 623 | |
f2f788dd | 624 | if (!terse) |
a666cab8 | 625 | log_buf(out, "\n"); |
043b74b9 ST |
626 | } |
627 | ||
952b05e0 CF |
628 | void json_array_add_disk_util(struct disk_util_stat *dus, |
629 | struct disk_util_agg *agg, struct json_array *array) | |
cc372b17 | 630 | { |
cc372b17 | 631 | struct json_object *obj; |
952b05e0 | 632 | double util = 0; |
cc372b17 | 633 | |
a3b4cf7d JA |
634 | if (dus->s.msec) |
635 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
cc372b17 SL |
636 | if (util > 100.0) |
637 | util = 100.0; | |
638 | ||
952b05e0 CF |
639 | obj = json_create_object(); |
640 | json_array_add_value_object(array, obj); | |
cc372b17 SL |
641 | |
642 | json_object_add_value_string(obj, "name", dus->name); | |
a3b4cf7d JA |
643 | json_object_add_value_int(obj, "read_ios", dus->s.ios[0]); |
644 | json_object_add_value_int(obj, "write_ios", dus->s.ios[1]); | |
645 | json_object_add_value_int(obj, "read_merges", dus->s.merges[0]); | |
646 | json_object_add_value_int(obj, "write_merges", dus->s.merges[1]); | |
647 | json_object_add_value_int(obj, "read_ticks", dus->s.ticks[0]); | |
648 | json_object_add_value_int(obj, "write_ticks", dus->s.ticks[1]); | |
649 | json_object_add_value_int(obj, "in_queue", dus->s.time_in_queue); | |
cc372b17 SL |
650 | json_object_add_value_float(obj, "util", util); |
651 | ||
652 | /* | |
653 | * If the device has slaves, aggregate the stats for | |
654 | * those slave devices also. | |
655 | */ | |
656 | if (!agg->slavecount) | |
657 | return; | |
658 | json_object_add_value_int(obj, "aggr_read_ios", | |
659 | agg->ios[0] / agg->slavecount); | |
660 | json_object_add_value_int(obj, "aggr_write_ios", | |
661 | agg->ios[1] / agg->slavecount); | |
662 | json_object_add_value_int(obj, "aggr_read_merges", | |
663 | agg->merges[0] / agg->slavecount); | |
664 | json_object_add_value_int(obj, "aggr_write_merge", | |
665 | agg->merges[1] / agg->slavecount); | |
666 | json_object_add_value_int(obj, "aggr_read_ticks", | |
667 | agg->ticks[0] / agg->slavecount); | |
668 | json_object_add_value_int(obj, "aggr_write_ticks", | |
669 | agg->ticks[1] / agg->slavecount); | |
670 | json_object_add_value_int(obj, "aggr_in_queue", | |
671 | agg->time_in_queue / agg->slavecount); | |
672 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); | |
673 | } | |
674 | ||
10aa136b JA |
675 | static void json_object_add_disk_utils(struct json_object *obj, |
676 | struct flist_head *head) | |
952b05e0 CF |
677 | { |
678 | struct json_array *array = json_create_array(); | |
679 | struct flist_head *entry; | |
680 | struct disk_util *du; | |
681 | ||
682 | json_object_add_value_array(obj, "disk_util", array); | |
683 | ||
684 | flist_for_each(entry, head) { | |
685 | du = flist_entry(entry, struct disk_util, list); | |
686 | ||
687 | aggregate_slaves_stats(du); | |
688 | json_array_add_disk_util(&du->dus, &du->agg, array); | |
689 | } | |
690 | } | |
691 | ||
a666cab8 JA |
692 | void show_disk_util(int terse, struct json_object *parent, |
693 | struct buf_output *out) | |
9f8f2064 | 694 | { |
d09a64a0 | 695 | struct flist_head *entry; |
9f8f2064 | 696 | struct disk_util *du; |
6efb21c2 | 697 | bool do_json; |
9f8f2064 | 698 | |
971caeb1 | 699 | if (!disk_util_sem) |
67a176fc JA |
700 | return; |
701 | ||
971caeb1 | 702 | fio_sem_down(disk_util_sem); |
9ec7779f JA |
703 | |
704 | if (flist_empty(&disk_list)) { | |
971caeb1 | 705 | fio_sem_up(disk_util_sem); |
0a839f30 | 706 | return; |
9ec7779f | 707 | } |
0a839f30 | 708 | |
6efb21c2 JA |
709 | if ((output_format & FIO_OUTPUT_JSON) && parent) |
710 | do_json = true; | |
711 | else | |
712 | do_json = false; | |
9edf7b3e | 713 | |
6efb21c2 | 714 | if (!terse && !do_json) |
a666cab8 | 715 | log_buf(out, "\nDisk stats (read/write):\n"); |
9f8f2064 | 716 | |
6efb21c2 | 717 | if (do_json) |
952b05e0 | 718 | json_object_add_disk_utils(parent, &disk_list); |
03d189b7 | 719 | else if (output_format & ~(FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS)) { |
952b05e0 CF |
720 | flist_for_each(entry, &disk_list) { |
721 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 722 | |
952b05e0 | 723 | aggregate_slaves_stats(du); |
a666cab8 | 724 | print_disk_util(&du->dus, &du->agg, terse, out); |
952b05e0 | 725 | } |
129fb2d4 | 726 | } |
9ec7779f | 727 | |
971caeb1 | 728 | fio_sem_up(disk_util_sem); |
9ec7779f JA |
729 | } |
730 | ||
731 | void setup_disk_util(void) | |
732 | { | |
971caeb1 | 733 | disk_util_sem = fio_sem_init(FIO_SEM_UNLOCKED); |
9f8f2064 | 734 | } |