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> | |
036a1599 | 6 | #include <sys/sysmacros.h> |
9f8f2064 JA |
7 | #include <dirent.h> |
8 | #include <libgen.h> | |
9 | #include <math.h> | |
9edf7b3e | 10 | #include <assert.h> |
4f37732a BVA |
11 | #ifdef CONFIG_VALGRIND_DEV |
12 | #include <valgrind/drd.h> | |
13 | #else | |
14 | #define DRD_IGNORE_VAR(x) do { } while (0) | |
15 | #endif | |
9f8f2064 JA |
16 | |
17 | #include "fio.h" | |
c97bd0fa | 18 | #include "smalloc.h" |
7c9b1bce | 19 | #include "diskutil.h" |
a39fb9ea | 20 | #include "helper_thread.h" |
9f8f2064 JA |
21 | |
22 | static int last_majdev, last_mindev; | |
c97bd0fa | 23 | static struct disk_util *last_du; |
9f8f2064 | 24 | |
971caeb1 | 25 | static struct fio_sem *disk_util_sem; |
9ec7779f | 26 | |
2db4ecca JA |
27 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
28 | int majdev, int mindev, char *path); | |
29 | ||
c97bd0fa JA |
30 | static void disk_util_free(struct disk_util *du) |
31 | { | |
32 | if (du == last_du) | |
33 | last_du = NULL; | |
34 | ||
b8d541d5 JA |
35 | while (!flist_empty(&du->slaves)) { |
36 | struct disk_util *slave; | |
37 | ||
9342d5f8 | 38 | slave = flist_first_entry(&du->slaves, struct disk_util, slavelist); |
b8d541d5 JA |
39 | flist_del(&slave->slavelist); |
40 | slave->users--; | |
41 | } | |
93bcfd20 | 42 | |
971caeb1 | 43 | fio_sem_remove(du->lock); |
2a20eebc | 44 | free(du->sysfs_root); |
c97bd0fa JA |
45 | sfree(du); |
46 | } | |
47 | ||
9f8f2064 JA |
48 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
49 | { | |
50 | unsigned in_flight; | |
d09a64a0 | 51 | unsigned long long sectors[2]; |
9f8f2064 JA |
52 | char line[256]; |
53 | FILE *f; | |
54 | char *p; | |
5ec10eaa | 55 | int ret; |
9f8f2064 | 56 | |
cd991b9e JA |
57 | dprint(FD_DISKUTIL, "open stat file: %s\n", du->path); |
58 | ||
9f8f2064 JA |
59 | f = fopen(du->path, "r"); |
60 | if (!f) | |
61 | return 1; | |
62 | ||
63 | p = fgets(line, sizeof(line), f); | |
64 | if (!p) { | |
65 | fclose(f); | |
66 | return 1; | |
67 | } | |
68 | ||
cd991b9e JA |
69 | dprint(FD_DISKUTIL, "%s: %s", du->path, p); |
70 | ||
504bc961 JA |
71 | ret = sscanf(p, "%llu %llu %llu %llu %llu %llu %llu %llu %u %llu %llu\n", |
72 | (unsigned long long *) &dus->s.ios[0], | |
73 | (unsigned long long *) &dus->s.merges[0], | |
74 | §ors[0], | |
75 | (unsigned long long *) &dus->s.ticks[0], | |
76 | (unsigned long long *) &dus->s.ios[1], | |
77 | (unsigned long long *) &dus->s.merges[1], | |
78 | §ors[1], | |
79 | (unsigned long long *) &dus->s.ticks[1], | |
80 | &in_flight, | |
81 | (unsigned long long *) &dus->s.io_ticks, | |
82 | (unsigned long long *) &dus->s.time_in_queue); | |
9f8f2064 | 83 | fclose(f); |
cd991b9e | 84 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
a3b4cf7d JA |
85 | dus->s.sectors[0] = sectors[0]; |
86 | dus->s.sectors[1] = sectors[1]; | |
cd991b9e | 87 | return ret != 11; |
9f8f2064 JA |
88 | } |
89 | ||
90 | static void update_io_tick_disk(struct disk_util *du) | |
91 | { | |
92 | struct disk_util_stat __dus, *dus, *ldus; | |
8b6a404c | 93 | struct timespec t; |
9f8f2064 | 94 | |
c97bd0fa JA |
95 | if (!du->users) |
96 | return; | |
90b97ac3 JA |
97 | if (get_io_ticks(du, &__dus)) |
98 | return; | |
9f8f2064 JA |
99 | |
100 | dus = &du->dus; | |
101 | ldus = &du->last_dus; | |
102 | ||
a3b4cf7d JA |
103 | dus->s.sectors[0] += (__dus.s.sectors[0] - ldus->s.sectors[0]); |
104 | dus->s.sectors[1] += (__dus.s.sectors[1] - ldus->s.sectors[1]); | |
105 | dus->s.ios[0] += (__dus.s.ios[0] - ldus->s.ios[0]); | |
106 | dus->s.ios[1] += (__dus.s.ios[1] - ldus->s.ios[1]); | |
107 | dus->s.merges[0] += (__dus.s.merges[0] - ldus->s.merges[0]); | |
108 | dus->s.merges[1] += (__dus.s.merges[1] - ldus->s.merges[1]); | |
109 | dus->s.ticks[0] += (__dus.s.ticks[0] - ldus->s.ticks[0]); | |
110 | dus->s.ticks[1] += (__dus.s.ticks[1] - ldus->s.ticks[1]); | |
111 | dus->s.io_ticks += (__dus.s.io_ticks - ldus->s.io_ticks); | |
112 | dus->s.time_in_queue += (__dus.s.time_in_queue - ldus->s.time_in_queue); | |
9f8f2064 JA |
113 | |
114 | fio_gettime(&t, NULL); | |
a3b4cf7d | 115 | dus->s.msec += mtime_since(&du->time, &t); |
9f8f2064 | 116 | memcpy(&du->time, &t, sizeof(t)); |
a3b4cf7d | 117 | memcpy(&ldus->s, &__dus.s, sizeof(__dus.s)); |
9f8f2064 JA |
118 | } |
119 | ||
9ec7779f | 120 | int update_io_ticks(void) |
9f8f2064 | 121 | { |
01743ee1 | 122 | struct flist_head *entry; |
9f8f2064 | 123 | struct disk_util *du; |
9ec7779f | 124 | int ret = 0; |
9f8f2064 | 125 | |
cd991b9e JA |
126 | dprint(FD_DISKUTIL, "update io ticks\n"); |
127 | ||
971caeb1 | 128 | fio_sem_down(disk_util_sem); |
9ec7779f | 129 | |
a47591e4 | 130 | if (!helper_should_exit()) { |
9ec7779f JA |
131 | flist_for_each(entry, &disk_list) { |
132 | du = flist_entry(entry, struct disk_util, list); | |
133 | update_io_tick_disk(du); | |
134 | } | |
135 | } else | |
136 | ret = 1; | |
137 | ||
971caeb1 | 138 | fio_sem_up(disk_util_sem); |
9ec7779f | 139 | return ret; |
9f8f2064 JA |
140 | } |
141 | ||
e11c410c | 142 | static struct disk_util *disk_util_exists(int major, int minor) |
9f8f2064 | 143 | { |
01743ee1 | 144 | struct flist_head *entry; |
9f8f2064 JA |
145 | struct disk_util *du; |
146 | ||
971caeb1 | 147 | fio_sem_down(disk_util_sem); |
9ec7779f | 148 | |
01743ee1 JA |
149 | flist_for_each(entry, &disk_list) { |
150 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 151 | |
9ec7779f | 152 | if (major == du->major && minor == du->minor) { |
971caeb1 | 153 | fio_sem_up(disk_util_sem); |
e11c410c | 154 | return du; |
9ec7779f | 155 | } |
9f8f2064 JA |
156 | } |
157 | ||
971caeb1 | 158 | fio_sem_up(disk_util_sem); |
e11c410c | 159 | return NULL; |
9f8f2064 JA |
160 | } |
161 | ||
67423013 ST |
162 | static int get_device_numbers(char *file_name, int *maj, int *min) |
163 | { | |
164 | struct stat st; | |
165 | int majdev, mindev; | |
166 | char tempname[PATH_MAX], *p; | |
167 | ||
168 | if (!lstat(file_name, &st)) { | |
169 | if (S_ISBLK(st.st_mode)) { | |
170 | majdev = major(st.st_rdev); | |
171 | mindev = minor(st.st_rdev); | |
172 | } else if (S_ISCHR(st.st_mode)) { | |
173 | majdev = major(st.st_rdev); | |
174 | mindev = minor(st.st_rdev); | |
175 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) | |
176 | return -1; | |
177 | } else if (S_ISFIFO(st.st_mode)) | |
178 | return -1; | |
179 | else { | |
180 | majdev = major(st.st_dev); | |
181 | mindev = minor(st.st_dev); | |
182 | } | |
183 | } else { | |
184 | /* | |
185 | * must be a file, open "." in that path | |
186 | */ | |
087d0ed0 | 187 | tempname[PATH_MAX - 1] = '\0'; |
67423013 ST |
188 | strncpy(tempname, file_name, PATH_MAX - 1); |
189 | p = dirname(tempname); | |
190 | if (stat(p, &st)) { | |
191 | perror("disk util stat"); | |
192 | return -1; | |
193 | } | |
194 | ||
195 | majdev = major(st.st_dev); | |
196 | mindev = minor(st.st_dev); | |
197 | } | |
198 | ||
199 | *min = mindev; | |
200 | *maj = majdev; | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
205 | static int read_block_dev_entry(char *path, int *maj, int *min) | |
206 | { | |
207 | char line[256], *p; | |
208 | FILE *f; | |
209 | ||
210 | f = fopen(path, "r"); | |
211 | if (!f) { | |
212 | perror("open path"); | |
213 | return 1; | |
214 | } | |
215 | ||
216 | p = fgets(line, sizeof(line), f); | |
217 | fclose(f); | |
218 | ||
219 | if (!p) | |
220 | return 1; | |
221 | ||
222 | if (sscanf(p, "%u:%u", maj, min) != 2) | |
223 | return 1; | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
67423013 | 228 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
2db4ecca | 229 | struct disk_util *masterdu) |
67423013 ST |
230 | { |
231 | DIR *dirhandle = NULL; | |
232 | struct dirent *dirent = NULL; | |
233 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; | |
234 | struct disk_util *slavedu = NULL; | |
235 | int majdev, mindev; | |
236 | ssize_t linklen; | |
237 | ||
2db4ecca | 238 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
67423013 ST |
239 | dirhandle = opendir(slavesdir); |
240 | if (!dirhandle) | |
241 | return; | |
242 | ||
243 | while ((dirent = readdir(dirhandle)) != NULL) { | |
2db4ecca JA |
244 | if (!strcmp(dirent->d_name, ".") || |
245 | !strcmp(dirent->d_name, "..")) | |
67423013 ST |
246 | continue; |
247 | ||
22497370 | 248 | sprintf(temppath, "%s/%s", slavesdir, dirent->d_name); |
67423013 ST |
249 | /* Can we always assume that the slaves device entries |
250 | * are links to the real directories for the slave | |
251 | * devices? | |
252 | */ | |
976406b8 | 253 | linklen = readlink(temppath, slavepath, PATH_MAX - 1); |
81286ecd | 254 | if (linklen < 0) { |
67423013 | 255 | perror("readlink() for slave device."); |
f0cc675f | 256 | closedir(dirhandle); |
67423013 ST |
257 | return; |
258 | } | |
2db4ecca | 259 | slavepath[linklen] = '\0'; |
67423013 ST |
260 | |
261 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); | |
75d5519d PBT |
262 | if (access(temppath, F_OK) != 0) |
263 | sprintf(temppath, "%s/%s/device/dev", slavesdir, slavepath); | |
67423013 | 264 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { |
81286ecd | 265 | perror("Error getting slave device numbers"); |
f0cc675f | 266 | closedir(dirhandle); |
67423013 ST |
267 | return; |
268 | } | |
269 | ||
b06de82e AB |
270 | /* |
271 | * See if this maj,min already exists | |
272 | */ | |
273 | slavedu = disk_util_exists(majdev, mindev); | |
274 | if (slavedu) | |
275 | continue; | |
276 | ||
22497370 | 277 | sprintf(temppath, "%s/%s", slavesdir, slavepath); |
67423013 ST |
278 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
279 | slavedu = disk_util_exists(majdev, mindev); | |
280 | ||
281 | /* Should probably use an assert here. slavedu should | |
282 | * always be present at this point. */ | |
b8d541d5 JA |
283 | if (slavedu) { |
284 | slavedu->users++; | |
67423013 | 285 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
b8d541d5 | 286 | } |
67423013 ST |
287 | } |
288 | ||
289 | closedir(dirhandle); | |
67423013 ST |
290 | } |
291 | ||
b8fefc2b | 292 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
c97bd0fa | 293 | int mindev, char *path) |
9f8f2064 JA |
294 | { |
295 | struct disk_util *du, *__du; | |
01743ee1 | 296 | struct flist_head *entry; |
4b919f77 | 297 | int l; |
9f8f2064 | 298 | |
cd991b9e JA |
299 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
300 | ||
c97bd0fa | 301 | du = smalloc(sizeof(*du)); |
81b3c86f | 302 | if (!du) |
fba5c5ff | 303 | return NULL; |
fba5c5ff | 304 | |
4f37732a | 305 | DRD_IGNORE_VAR(du->users); |
9f8f2064 | 306 | memset(du, 0, sizeof(*du)); |
01743ee1 | 307 | INIT_FLIST_HEAD(&du->list); |
4b919f77 KR |
308 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
309 | if (l < 0 || l >= sizeof(du->path)) { | |
310 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", | |
311 | path, sizeof(du->path) - 1); | |
312 | sfree(du); | |
313 | return NULL; | |
314 | } | |
a2ba41ed | 315 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ - 1); |
2a20eebc | 316 | du->sysfs_root = strdup(path); |
9f8f2064 JA |
317 | du->major = majdev; |
318 | du->minor = mindev; | |
67423013 ST |
319 | INIT_FLIST_HEAD(&du->slavelist); |
320 | INIT_FLIST_HEAD(&du->slaves); | |
971caeb1 | 321 | du->lock = fio_sem_init(FIO_SEM_UNLOCKED); |
c97bd0fa | 322 | du->users = 0; |
9f8f2064 | 323 | |
971caeb1 | 324 | fio_sem_down(disk_util_sem); |
9ec7779f | 325 | |
01743ee1 JA |
326 | flist_for_each(entry, &disk_list) { |
327 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 328 | |
d09a64a0 | 329 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 330 | |
d09a64a0 | 331 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 332 | disk_util_free(du); |
971caeb1 | 333 | fio_sem_up(disk_util_sem); |
c97bd0fa | 334 | return __du; |
9f8f2064 JA |
335 | } |
336 | } | |
337 | ||
d09a64a0 | 338 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 339 | |
9f8f2064 JA |
340 | fio_gettime(&du->time, NULL); |
341 | get_io_ticks(du, &du->last_dus); | |
342 | ||
01743ee1 | 343 | flist_add_tail(&du->list, &disk_list); |
971caeb1 | 344 | fio_sem_up(disk_util_sem); |
9ec7779f | 345 | |
67423013 | 346 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 347 | return du; |
9f8f2064 JA |
348 | } |
349 | ||
350 | static int check_dev_match(int majdev, int mindev, char *path) | |
351 | { | |
352 | int major, minor; | |
9f8f2064 | 353 | |
67423013 | 354 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 355 | return 1; |
9f8f2064 | 356 | |
c97bd0fa | 357 | if (majdev == major && mindev == minor) |
9f8f2064 | 358 | return 0; |
9f8f2064 | 359 | |
9f8f2064 JA |
360 | return 1; |
361 | } | |
362 | ||
ac0be2ac | 363 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
364 | { |
365 | struct dirent *dir; | |
366 | struct stat st; | |
367 | int found = 0; | |
368 | DIR *D; | |
369 | ||
370 | D = opendir(path); | |
371 | if (!D) | |
372 | return 0; | |
373 | ||
374 | while ((dir = readdir(D)) != NULL) { | |
5ccdfd74 | 375 | char full_path[257]; |
9f8f2064 JA |
376 | |
377 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
378 | continue; | |
379 | ||
22497370 | 380 | sprintf(full_path, "%s/%s", path, dir->d_name); |
9f8f2064 JA |
381 | |
382 | if (!strcmp(dir->d_name, "dev")) { | |
383 | if (!check_dev_match(majdev, mindev, full_path)) { | |
384 | found = 1; | |
385 | break; | |
386 | } | |
387 | } | |
388 | ||
ac0be2ac JA |
389 | if (link_ok) { |
390 | if (stat(full_path, &st) == -1) { | |
391 | perror("stat"); | |
392 | break; | |
393 | } | |
394 | } else { | |
395 | if (lstat(full_path, &st) == -1) { | |
396 | perror("stat"); | |
397 | break; | |
398 | } | |
9f8f2064 JA |
399 | } |
400 | ||
401 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
402 | continue; | |
403 | ||
ac0be2ac | 404 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
405 | if (found) { |
406 | strcpy(path, full_path); | |
407 | break; | |
408 | } | |
409 | } | |
410 | ||
411 | closedir(D); | |
412 | return found; | |
413 | } | |
414 | ||
c97bd0fa JA |
415 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
416 | int majdev, int mindev, | |
417 | char *path) | |
9f8f2064 JA |
418 | { |
419 | struct stat st; | |
67423013 | 420 | char tmp[PATH_MAX]; |
9f8f2064 JA |
421 | char *p; |
422 | ||
67423013 ST |
423 | /* |
424 | * If there's a ../queue/ directory there, we are inside a partition. | |
425 | * Check if that is the case and jump back. For loop/md/dm etc we | |
426 | * are already in the right spot. | |
427 | */ | |
428 | sprintf(tmp, "%s/../queue", path); | |
429 | if (!stat(tmp, &st)) { | |
430 | p = dirname(path); | |
431 | sprintf(tmp, "%s/queue", p); | |
432 | if (stat(tmp, &st)) { | |
433 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 434 | return NULL; |
9f8f2064 | 435 | } |
087d0ed0 | 436 | tmp[PATH_MAX - 1] = '\0'; |
67423013 ST |
437 | strncpy(tmp, p, PATH_MAX - 1); |
438 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
439 | } |
440 | ||
c97bd0fa | 441 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
442 | } |
443 | ||
c97bd0fa JA |
444 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
445 | char *filename) | |
67423013 ST |
446 | { |
447 | ||
448 | char foo[PATH_MAX]; | |
449 | struct disk_util *du; | |
450 | int mindev, majdev; | |
451 | ||
c97bd0fa JA |
452 | if (get_device_numbers(filename, &majdev, &mindev)) |
453 | return NULL; | |
67423013 ST |
454 | |
455 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
456 | mindev); | |
cd991b9e | 457 | |
e11c410c | 458 | du = disk_util_exists(majdev, mindev); |
bd4d9bdc | 459 | if (du) |
c97bd0fa | 460 | return du; |
9f8f2064 JA |
461 | |
462 | /* | |
463 | * for an fs without a device, we will repeatedly stat through | |
464 | * sysfs which can take oodles of time for thousands of files. so | |
465 | * cache the last lookup and compare with that before going through | |
466 | * everything again. | |
467 | */ | |
468 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 469 | return last_du; |
9f8f2064 JA |
470 | |
471 | last_mindev = mindev; | |
472 | last_majdev = majdev; | |
5ec10eaa | 473 | |
9f8f2064 | 474 | sprintf(foo, "/sys/block"); |
ac0be2ac | 475 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 476 | return NULL; |
9f8f2064 | 477 | |
c97bd0fa | 478 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 479 | } |
9f8f2064 | 480 | |
c97bd0fa JA |
481 | static struct disk_util *__init_disk_util(struct thread_data *td, |
482 | struct fio_file *f) | |
67423013 ST |
483 | { |
484 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
485 | } |
486 | ||
487 | void init_disk_util(struct thread_data *td) | |
488 | { | |
489 | struct fio_file *f; | |
490 | unsigned int i; | |
491 | ||
492 | if (!td->o.do_disk_util || | |
9b87f09b | 493 | td_ioengine_flagged(td, FIO_DISKLESSIO | FIO_NODISKUTIL)) |
9f8f2064 JA |
494 | return; |
495 | ||
496 | for_each_file(td, f, i) | |
c97bd0fa | 497 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
498 | } |
499 | ||
a666cab8 JA |
500 | static void show_agg_stats(struct disk_util_agg *agg, int terse, |
501 | struct buf_output *out) | |
d09a64a0 JA |
502 | { |
503 | if (!agg->slavecount) | |
504 | return; | |
505 | ||
f2f788dd | 506 | if (!terse) { |
a666cab8 | 507 | log_buf(out, ", aggrios=%llu/%llu, aggrmerge=%llu/%llu, " |
504bc961 JA |
508 | "aggrticks=%llu/%llu, aggrin_queue=%llu, " |
509 | "aggrutil=%3.2f%%", | |
510 | (unsigned long long) agg->ios[0] / agg->slavecount, | |
511 | (unsigned long long) agg->ios[1] / agg->slavecount, | |
512 | (unsigned long long) agg->merges[0] / agg->slavecount, | |
513 | (unsigned long long) agg->merges[1] / agg->slavecount, | |
514 | (unsigned long long) agg->ticks[0] / agg->slavecount, | |
515 | (unsigned long long) agg->ticks[1] / agg->slavecount, | |
516 | (unsigned long long) agg->time_in_queue / agg->slavecount, | |
517 | agg->max_util.u.f); | |
f2f788dd | 518 | } else { |
a666cab8 | 519 | log_buf(out, ";slaves;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
504bc961 JA |
520 | (unsigned long long) agg->ios[0] / agg->slavecount, |
521 | (unsigned long long) agg->ios[1] / agg->slavecount, | |
522 | (unsigned long long) agg->merges[0] / agg->slavecount, | |
523 | (unsigned long long) agg->merges[1] / agg->slavecount, | |
524 | (unsigned long long) agg->ticks[0] / agg->slavecount, | |
525 | (unsigned long long) agg->ticks[1] / agg->slavecount, | |
526 | (unsigned long long) agg->time_in_queue / agg->slavecount, | |
527 | agg->max_util.u.f); | |
f2f788dd | 528 | } |
d09a64a0 JA |
529 | } |
530 | ||
043b74b9 ST |
531 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
532 | { | |
d09a64a0 | 533 | struct disk_util_agg *agg = &masterdu->agg; |
043b74b9 ST |
534 | struct disk_util_stat *dus; |
535 | struct flist_head *entry; | |
536 | struct disk_util *slavedu; | |
d09a64a0 | 537 | double util; |
043b74b9 ST |
538 | |
539 | flist_for_each(entry, &masterdu->slaves) { | |
540 | slavedu = flist_entry(entry, struct disk_util, slavelist); | |
541 | dus = &slavedu->dus; | |
a3b4cf7d JA |
542 | agg->ios[0] += dus->s.ios[0]; |
543 | agg->ios[1] += dus->s.ios[1]; | |
544 | agg->merges[0] += dus->s.merges[0]; | |
545 | agg->merges[1] += dus->s.merges[1]; | |
546 | agg->sectors[0] += dus->s.sectors[0]; | |
547 | agg->sectors[1] += dus->s.sectors[1]; | |
548 | agg->ticks[0] += dus->s.ticks[0]; | |
549 | agg->ticks[1] += dus->s.ticks[1]; | |
550 | agg->time_in_queue += dus->s.time_in_queue; | |
d09a64a0 JA |
551 | agg->slavecount++; |
552 | ||
a3b4cf7d | 553 | util = (double) (100 * dus->s.io_ticks / (double) slavedu->dus.s.msec); |
043b74b9 ST |
554 | /* System utilization is the utilization of the |
555 | * component with the highest utilization. | |
556 | */ | |
d09a64a0 JA |
557 | if (util > agg->max_util.u.f) |
558 | agg->max_util.u.f = util; | |
043b74b9 ST |
559 | |
560 | } | |
561 | ||
d09a64a0 JA |
562 | if (agg->max_util.u.f > 100.0) |
563 | agg->max_util.u.f = 100.0; | |
564 | } | |
565 | ||
27357187 | 566 | void disk_util_prune_entries(void) |
d09a64a0 | 567 | { |
971caeb1 | 568 | fio_sem_down(disk_util_sem); |
9ec7779f | 569 | |
d09a64a0 | 570 | while (!flist_empty(&disk_list)) { |
27357187 JA |
571 | struct disk_util *du; |
572 | ||
9342d5f8 | 573 | du = flist_first_entry(&disk_list, struct disk_util, list); |
d09a64a0 JA |
574 | flist_del(&du->list); |
575 | disk_util_free(du); | |
576 | } | |
043b74b9 | 577 | |
d09a64a0 | 578 | last_majdev = last_mindev = -1; |
971caeb1 BVA |
579 | fio_sem_up(disk_util_sem); |
580 | fio_sem_remove(disk_util_sem); | |
d09a64a0 JA |
581 | } |
582 | ||
f2f788dd | 583 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
a666cab8 | 584 | int terse, struct buf_output *out) |
d09a64a0 | 585 | { |
6914f59e | 586 | double util = 0; |
d09a64a0 | 587 | |
a3b4cf7d JA |
588 | if (dus->s.msec) |
589 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
d09a64a0 JA |
590 | if (util > 100.0) |
591 | util = 100.0; | |
592 | ||
f2f788dd | 593 | if (!terse) { |
f1d64553 | 594 | if (agg->slavecount) |
a666cab8 | 595 | log_buf(out, " "); |
f1d64553 | 596 | |
a666cab8 | 597 | log_buf(out, " %s: ios=%llu/%llu, merge=%llu/%llu, " |
504bc961 JA |
598 | "ticks=%llu/%llu, in_queue=%llu, util=%3.2f%%", |
599 | dus->name, | |
600 | (unsigned long long) dus->s.ios[0], | |
601 | (unsigned long long) dus->s.ios[1], | |
602 | (unsigned long long) dus->s.merges[0], | |
603 | (unsigned long long) dus->s.merges[1], | |
604 | (unsigned long long) dus->s.ticks[0], | |
605 | (unsigned long long) dus->s.ticks[1], | |
606 | (unsigned long long) dus->s.time_in_queue, | |
607 | util); | |
f2f788dd | 608 | } else { |
a666cab8 | 609 | log_buf(out, ";%s;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
504bc961 JA |
610 | dus->name, |
611 | (unsigned long long) dus->s.ios[0], | |
612 | (unsigned long long) dus->s.ios[1], | |
613 | (unsigned long long) dus->s.merges[0], | |
614 | (unsigned long long) dus->s.merges[1], | |
615 | (unsigned long long) dus->s.ticks[0], | |
616 | (unsigned long long) dus->s.ticks[1], | |
617 | (unsigned long long) dus->s.time_in_queue, | |
618 | util); | |
f2f788dd | 619 | } |
d09a64a0 JA |
620 | |
621 | /* | |
622 | * If the device has slaves, aggregate the stats for | |
623 | * those slave devices also. | |
624 | */ | |
a666cab8 | 625 | show_agg_stats(agg, terse, out); |
d09a64a0 | 626 | |
f2f788dd | 627 | if (!terse) |
a666cab8 | 628 | log_buf(out, "\n"); |
043b74b9 ST |
629 | } |
630 | ||
952b05e0 CF |
631 | void json_array_add_disk_util(struct disk_util_stat *dus, |
632 | struct disk_util_agg *agg, struct json_array *array) | |
cc372b17 | 633 | { |
cc372b17 | 634 | struct json_object *obj; |
952b05e0 | 635 | double util = 0; |
cc372b17 | 636 | |
a3b4cf7d JA |
637 | if (dus->s.msec) |
638 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
cc372b17 SL |
639 | if (util > 100.0) |
640 | util = 100.0; | |
641 | ||
952b05e0 CF |
642 | obj = json_create_object(); |
643 | json_array_add_value_object(array, obj); | |
cc372b17 SL |
644 | |
645 | json_object_add_value_string(obj, "name", dus->name); | |
a3b4cf7d JA |
646 | json_object_add_value_int(obj, "read_ios", dus->s.ios[0]); |
647 | json_object_add_value_int(obj, "write_ios", dus->s.ios[1]); | |
648 | json_object_add_value_int(obj, "read_merges", dus->s.merges[0]); | |
649 | json_object_add_value_int(obj, "write_merges", dus->s.merges[1]); | |
650 | json_object_add_value_int(obj, "read_ticks", dus->s.ticks[0]); | |
651 | json_object_add_value_int(obj, "write_ticks", dus->s.ticks[1]); | |
652 | json_object_add_value_int(obj, "in_queue", dus->s.time_in_queue); | |
cc372b17 SL |
653 | json_object_add_value_float(obj, "util", util); |
654 | ||
655 | /* | |
656 | * If the device has slaves, aggregate the stats for | |
657 | * those slave devices also. | |
658 | */ | |
659 | if (!agg->slavecount) | |
660 | return; | |
661 | json_object_add_value_int(obj, "aggr_read_ios", | |
662 | agg->ios[0] / agg->slavecount); | |
663 | json_object_add_value_int(obj, "aggr_write_ios", | |
664 | agg->ios[1] / agg->slavecount); | |
665 | json_object_add_value_int(obj, "aggr_read_merges", | |
666 | agg->merges[0] / agg->slavecount); | |
667 | json_object_add_value_int(obj, "aggr_write_merge", | |
668 | agg->merges[1] / agg->slavecount); | |
669 | json_object_add_value_int(obj, "aggr_read_ticks", | |
670 | agg->ticks[0] / agg->slavecount); | |
671 | json_object_add_value_int(obj, "aggr_write_ticks", | |
672 | agg->ticks[1] / agg->slavecount); | |
673 | json_object_add_value_int(obj, "aggr_in_queue", | |
674 | agg->time_in_queue / agg->slavecount); | |
675 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); | |
676 | } | |
677 | ||
10aa136b JA |
678 | static void json_object_add_disk_utils(struct json_object *obj, |
679 | struct flist_head *head) | |
952b05e0 CF |
680 | { |
681 | struct json_array *array = json_create_array(); | |
682 | struct flist_head *entry; | |
683 | struct disk_util *du; | |
684 | ||
685 | json_object_add_value_array(obj, "disk_util", array); | |
686 | ||
687 | flist_for_each(entry, head) { | |
688 | du = flist_entry(entry, struct disk_util, list); | |
689 | ||
690 | aggregate_slaves_stats(du); | |
691 | json_array_add_disk_util(&du->dus, &du->agg, array); | |
692 | } | |
693 | } | |
694 | ||
a666cab8 JA |
695 | void show_disk_util(int terse, struct json_object *parent, |
696 | struct buf_output *out) | |
9f8f2064 | 697 | { |
d09a64a0 | 698 | struct flist_head *entry; |
9f8f2064 | 699 | struct disk_util *du; |
6efb21c2 | 700 | bool do_json; |
9f8f2064 | 701 | |
971caeb1 | 702 | if (!disk_util_sem) |
67a176fc JA |
703 | return; |
704 | ||
971caeb1 | 705 | fio_sem_down(disk_util_sem); |
9ec7779f JA |
706 | |
707 | if (flist_empty(&disk_list)) { | |
971caeb1 | 708 | fio_sem_up(disk_util_sem); |
0a839f30 | 709 | return; |
9ec7779f | 710 | } |
0a839f30 | 711 | |
6efb21c2 JA |
712 | if ((output_format & FIO_OUTPUT_JSON) && parent) |
713 | do_json = true; | |
714 | else | |
715 | do_json = false; | |
9edf7b3e | 716 | |
6efb21c2 | 717 | if (!terse && !do_json) |
a666cab8 | 718 | log_buf(out, "\nDisk stats (read/write):\n"); |
9f8f2064 | 719 | |
6efb21c2 | 720 | if (do_json) |
952b05e0 | 721 | json_object_add_disk_utils(parent, &disk_list); |
03d189b7 | 722 | else if (output_format & ~(FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS)) { |
952b05e0 CF |
723 | flist_for_each(entry, &disk_list) { |
724 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 725 | |
952b05e0 | 726 | aggregate_slaves_stats(du); |
a666cab8 | 727 | print_disk_util(&du->dus, &du->agg, terse, out); |
952b05e0 | 728 | } |
129fb2d4 | 729 | } |
9ec7779f | 730 | |
971caeb1 | 731 | fio_sem_up(disk_util_sem); |
9ec7779f JA |
732 | } |
733 | ||
734 | void setup_disk_util(void) | |
735 | { | |
971caeb1 | 736 | disk_util_sem = fio_sem_init(FIO_SEM_UNLOCKED); |
9f8f2064 | 737 | } |