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 | ||
a3b4cf7d JA |
64 | ret = sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", |
65 | &dus->s.ios[0], | |
66 | &dus->s.merges[0], §ors[0], | |
67 | &dus->s.ticks[0], &dus->s.ios[1], | |
68 | &dus->s.merges[1], §ors[1], | |
69 | &dus->s.ticks[1], &in_flight, | |
70 | &dus->s.io_ticks, | |
71 | &dus->s.time_in_queue); | |
9f8f2064 | 72 | fclose(f); |
cd991b9e | 73 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
a3b4cf7d JA |
74 | dus->s.sectors[0] = sectors[0]; |
75 | dus->s.sectors[1] = sectors[1]; | |
cd991b9e | 76 | return ret != 11; |
9f8f2064 JA |
77 | } |
78 | ||
79 | static void update_io_tick_disk(struct disk_util *du) | |
80 | { | |
81 | struct disk_util_stat __dus, *dus, *ldus; | |
82 | struct timeval t; | |
83 | ||
c97bd0fa JA |
84 | if (!du->users) |
85 | return; | |
90b97ac3 JA |
86 | if (get_io_ticks(du, &__dus)) |
87 | return; | |
9f8f2064 JA |
88 | |
89 | dus = &du->dus; | |
90 | ldus = &du->last_dus; | |
91 | ||
a3b4cf7d JA |
92 | dus->s.sectors[0] += (__dus.s.sectors[0] - ldus->s.sectors[0]); |
93 | dus->s.sectors[1] += (__dus.s.sectors[1] - ldus->s.sectors[1]); | |
94 | dus->s.ios[0] += (__dus.s.ios[0] - ldus->s.ios[0]); | |
95 | dus->s.ios[1] += (__dus.s.ios[1] - ldus->s.ios[1]); | |
96 | dus->s.merges[0] += (__dus.s.merges[0] - ldus->s.merges[0]); | |
97 | dus->s.merges[1] += (__dus.s.merges[1] - ldus->s.merges[1]); | |
98 | dus->s.ticks[0] += (__dus.s.ticks[0] - ldus->s.ticks[0]); | |
99 | dus->s.ticks[1] += (__dus.s.ticks[1] - ldus->s.ticks[1]); | |
100 | dus->s.io_ticks += (__dus.s.io_ticks - ldus->s.io_ticks); | |
101 | dus->s.time_in_queue += (__dus.s.time_in_queue - ldus->s.time_in_queue); | |
9f8f2064 JA |
102 | |
103 | fio_gettime(&t, NULL); | |
a3b4cf7d | 104 | dus->s.msec += mtime_since(&du->time, &t); |
9f8f2064 | 105 | memcpy(&du->time, &t, sizeof(t)); |
a3b4cf7d | 106 | memcpy(&ldus->s, &__dus.s, sizeof(__dus.s)); |
9f8f2064 JA |
107 | } |
108 | ||
9ec7779f | 109 | int update_io_ticks(void) |
9f8f2064 | 110 | { |
01743ee1 | 111 | struct flist_head *entry; |
9f8f2064 | 112 | struct disk_util *du; |
9ec7779f | 113 | int ret = 0; |
9f8f2064 | 114 | |
cd991b9e JA |
115 | dprint(FD_DISKUTIL, "update io ticks\n"); |
116 | ||
9ec7779f JA |
117 | fio_mutex_down(disk_util_mutex); |
118 | ||
119 | if (!disk_util_exit) { | |
120 | flist_for_each(entry, &disk_list) { | |
121 | du = flist_entry(entry, struct disk_util, list); | |
122 | update_io_tick_disk(du); | |
123 | } | |
124 | } else | |
125 | ret = 1; | |
126 | ||
127 | fio_mutex_up(disk_util_mutex); | |
128 | return ret; | |
9f8f2064 JA |
129 | } |
130 | ||
e11c410c | 131 | static struct disk_util *disk_util_exists(int major, int minor) |
9f8f2064 | 132 | { |
01743ee1 | 133 | struct flist_head *entry; |
9f8f2064 JA |
134 | struct disk_util *du; |
135 | ||
9ec7779f JA |
136 | fio_mutex_down(disk_util_mutex); |
137 | ||
01743ee1 JA |
138 | flist_for_each(entry, &disk_list) { |
139 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 140 | |
9ec7779f JA |
141 | if (major == du->major && minor == du->minor) { |
142 | fio_mutex_up(disk_util_mutex); | |
e11c410c | 143 | return du; |
9ec7779f | 144 | } |
9f8f2064 JA |
145 | } |
146 | ||
9ec7779f | 147 | fio_mutex_up(disk_util_mutex); |
e11c410c | 148 | return NULL; |
9f8f2064 JA |
149 | } |
150 | ||
67423013 ST |
151 | static int get_device_numbers(char *file_name, int *maj, int *min) |
152 | { | |
153 | struct stat st; | |
154 | int majdev, mindev; | |
155 | char tempname[PATH_MAX], *p; | |
156 | ||
157 | if (!lstat(file_name, &st)) { | |
158 | if (S_ISBLK(st.st_mode)) { | |
159 | majdev = major(st.st_rdev); | |
160 | mindev = minor(st.st_rdev); | |
161 | } else if (S_ISCHR(st.st_mode)) { | |
162 | majdev = major(st.st_rdev); | |
163 | mindev = minor(st.st_rdev); | |
164 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) | |
165 | return -1; | |
166 | } else if (S_ISFIFO(st.st_mode)) | |
167 | return -1; | |
168 | else { | |
169 | majdev = major(st.st_dev); | |
170 | mindev = minor(st.st_dev); | |
171 | } | |
172 | } else { | |
173 | /* | |
174 | * must be a file, open "." in that path | |
175 | */ | |
176 | strncpy(tempname, file_name, PATH_MAX - 1); | |
177 | p = dirname(tempname); | |
178 | if (stat(p, &st)) { | |
179 | perror("disk util stat"); | |
180 | return -1; | |
181 | } | |
182 | ||
183 | majdev = major(st.st_dev); | |
184 | mindev = minor(st.st_dev); | |
185 | } | |
186 | ||
187 | *min = mindev; | |
188 | *maj = majdev; | |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
193 | static int read_block_dev_entry(char *path, int *maj, int *min) | |
194 | { | |
195 | char line[256], *p; | |
196 | FILE *f; | |
197 | ||
198 | f = fopen(path, "r"); | |
199 | if (!f) { | |
200 | perror("open path"); | |
201 | return 1; | |
202 | } | |
203 | ||
204 | p = fgets(line, sizeof(line), f); | |
205 | fclose(f); | |
206 | ||
207 | if (!p) | |
208 | return 1; | |
209 | ||
210 | if (sscanf(p, "%u:%u", maj, min) != 2) | |
211 | return 1; | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
67423013 | 216 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
2db4ecca | 217 | struct disk_util *masterdu) |
67423013 ST |
218 | { |
219 | DIR *dirhandle = NULL; | |
220 | struct dirent *dirent = NULL; | |
221 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; | |
222 | struct disk_util *slavedu = NULL; | |
223 | int majdev, mindev; | |
224 | ssize_t linklen; | |
225 | ||
2db4ecca | 226 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
67423013 ST |
227 | dirhandle = opendir(slavesdir); |
228 | if (!dirhandle) | |
229 | return; | |
230 | ||
231 | while ((dirent = readdir(dirhandle)) != NULL) { | |
2db4ecca JA |
232 | if (!strcmp(dirent->d_name, ".") || |
233 | !strcmp(dirent->d_name, "..")) | |
67423013 ST |
234 | continue; |
235 | ||
b9fd788f | 236 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, dirent->d_name); |
67423013 ST |
237 | /* Can we always assume that the slaves device entries |
238 | * are links to the real directories for the slave | |
239 | * devices? | |
240 | */ | |
976406b8 | 241 | linklen = readlink(temppath, slavepath, PATH_MAX - 1); |
2db4ecca | 242 | if (linklen < 0) { |
67423013 | 243 | perror("readlink() for slave device."); |
f0cc675f | 244 | closedir(dirhandle); |
67423013 ST |
245 | return; |
246 | } | |
2db4ecca | 247 | slavepath[linklen] = '\0'; |
67423013 ST |
248 | |
249 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); | |
250 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { | |
251 | perror("Error getting slave device numbers."); | |
f0cc675f | 252 | closedir(dirhandle); |
67423013 ST |
253 | return; |
254 | } | |
255 | ||
b06de82e AB |
256 | /* |
257 | * See if this maj,min already exists | |
258 | */ | |
259 | slavedu = disk_util_exists(majdev, mindev); | |
260 | if (slavedu) | |
261 | continue; | |
262 | ||
b9fd788f | 263 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, slavepath); |
67423013 ST |
264 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
265 | slavedu = disk_util_exists(majdev, mindev); | |
266 | ||
267 | /* Should probably use an assert here. slavedu should | |
268 | * always be present at this point. */ | |
b8d541d5 JA |
269 | if (slavedu) { |
270 | slavedu->users++; | |
67423013 | 271 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
b8d541d5 | 272 | } |
67423013 ST |
273 | } |
274 | ||
275 | closedir(dirhandle); | |
67423013 ST |
276 | } |
277 | ||
b8fefc2b | 278 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
c97bd0fa | 279 | int mindev, char *path) |
9f8f2064 JA |
280 | { |
281 | struct disk_util *du, *__du; | |
01743ee1 | 282 | struct flist_head *entry; |
4b919f77 | 283 | int l; |
9f8f2064 | 284 | |
cd991b9e JA |
285 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
286 | ||
c97bd0fa | 287 | du = smalloc(sizeof(*du)); |
fba5c5ff JA |
288 | if (!du) { |
289 | log_err("fio: smalloc() pool exhausted\n"); | |
290 | return NULL; | |
291 | } | |
292 | ||
9f8f2064 | 293 | memset(du, 0, sizeof(*du)); |
01743ee1 | 294 | INIT_FLIST_HEAD(&du->list); |
4b919f77 KR |
295 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
296 | if (l < 0 || l >= sizeof(du->path)) { | |
297 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", | |
298 | path, sizeof(du->path) - 1); | |
299 | sfree(du); | |
300 | return NULL; | |
301 | } | |
18ef0638 | 302 | strncpy((char *) du->dus.name, basename(path) - 1, FIO_DU_NAME_SZ); |
e11c410c | 303 | du->sysfs_root = path; |
9f8f2064 JA |
304 | du->major = majdev; |
305 | du->minor = mindev; | |
67423013 ST |
306 | INIT_FLIST_HEAD(&du->slavelist); |
307 | INIT_FLIST_HEAD(&du->slaves); | |
521da527 | 308 | du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
c97bd0fa | 309 | du->users = 0; |
9f8f2064 | 310 | |
9ec7779f JA |
311 | fio_mutex_down(disk_util_mutex); |
312 | ||
01743ee1 JA |
313 | flist_for_each(entry, &disk_list) { |
314 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 315 | |
d09a64a0 | 316 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 317 | |
d09a64a0 | 318 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 319 | disk_util_free(du); |
9ec7779f | 320 | fio_mutex_up(disk_util_mutex); |
c97bd0fa | 321 | return __du; |
9f8f2064 JA |
322 | } |
323 | } | |
324 | ||
d09a64a0 | 325 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 326 | |
9f8f2064 JA |
327 | fio_gettime(&du->time, NULL); |
328 | get_io_ticks(du, &du->last_dus); | |
329 | ||
01743ee1 | 330 | flist_add_tail(&du->list, &disk_list); |
9ec7779f JA |
331 | fio_mutex_up(disk_util_mutex); |
332 | ||
67423013 | 333 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 334 | return du; |
9f8f2064 JA |
335 | } |
336 | ||
337 | static int check_dev_match(int majdev, int mindev, char *path) | |
338 | { | |
339 | int major, minor; | |
9f8f2064 | 340 | |
67423013 | 341 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 342 | return 1; |
9f8f2064 | 343 | |
c97bd0fa | 344 | if (majdev == major && mindev == minor) |
9f8f2064 | 345 | return 0; |
9f8f2064 | 346 | |
9f8f2064 JA |
347 | return 1; |
348 | } | |
349 | ||
ac0be2ac | 350 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
351 | { |
352 | struct dirent *dir; | |
353 | struct stat st; | |
354 | int found = 0; | |
355 | DIR *D; | |
356 | ||
357 | D = opendir(path); | |
358 | if (!D) | |
359 | return 0; | |
360 | ||
361 | while ((dir = readdir(D)) != NULL) { | |
362 | char full_path[256]; | |
363 | ||
364 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
365 | continue; | |
366 | ||
b9fd788f | 367 | sprintf(full_path, "%s%s%s", path, FIO_OS_PATH_SEPARATOR, dir->d_name); |
9f8f2064 JA |
368 | |
369 | if (!strcmp(dir->d_name, "dev")) { | |
370 | if (!check_dev_match(majdev, mindev, full_path)) { | |
371 | found = 1; | |
372 | break; | |
373 | } | |
374 | } | |
375 | ||
ac0be2ac JA |
376 | if (link_ok) { |
377 | if (stat(full_path, &st) == -1) { | |
378 | perror("stat"); | |
379 | break; | |
380 | } | |
381 | } else { | |
382 | if (lstat(full_path, &st) == -1) { | |
383 | perror("stat"); | |
384 | break; | |
385 | } | |
9f8f2064 JA |
386 | } |
387 | ||
388 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
389 | continue; | |
390 | ||
ac0be2ac | 391 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
392 | if (found) { |
393 | strcpy(path, full_path); | |
394 | break; | |
395 | } | |
396 | } | |
397 | ||
398 | closedir(D); | |
399 | return found; | |
400 | } | |
401 | ||
c97bd0fa JA |
402 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
403 | int majdev, int mindev, | |
404 | char *path) | |
9f8f2064 JA |
405 | { |
406 | struct stat st; | |
67423013 | 407 | char tmp[PATH_MAX]; |
9f8f2064 JA |
408 | char *p; |
409 | ||
67423013 ST |
410 | /* |
411 | * If there's a ../queue/ directory there, we are inside a partition. | |
412 | * Check if that is the case and jump back. For loop/md/dm etc we | |
413 | * are already in the right spot. | |
414 | */ | |
415 | sprintf(tmp, "%s/../queue", path); | |
416 | if (!stat(tmp, &st)) { | |
417 | p = dirname(path); | |
418 | sprintf(tmp, "%s/queue", p); | |
419 | if (stat(tmp, &st)) { | |
420 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 421 | return NULL; |
9f8f2064 | 422 | } |
67423013 ST |
423 | strncpy(tmp, p, PATH_MAX - 1); |
424 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
425 | } |
426 | ||
67423013 ST |
427 | if (td->o.ioscheduler && !td->sysfs_root) |
428 | td->sysfs_root = strdup(path); | |
429 | ||
c97bd0fa | 430 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
431 | } |
432 | ||
c97bd0fa JA |
433 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
434 | char *filename) | |
67423013 ST |
435 | { |
436 | ||
437 | char foo[PATH_MAX]; | |
438 | struct disk_util *du; | |
439 | int mindev, majdev; | |
440 | ||
c97bd0fa JA |
441 | if (get_device_numbers(filename, &majdev, &mindev)) |
442 | return NULL; | |
67423013 ST |
443 | |
444 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
445 | mindev); | |
cd991b9e | 446 | |
e11c410c JA |
447 | du = disk_util_exists(majdev, mindev); |
448 | if (du) { | |
449 | if (td->o.ioscheduler && !td->sysfs_root) | |
450 | td->sysfs_root = strdup(du->sysfs_root); | |
451 | ||
c97bd0fa | 452 | return du; |
e11c410c | 453 | } |
9f8f2064 JA |
454 | |
455 | /* | |
456 | * for an fs without a device, we will repeatedly stat through | |
457 | * sysfs which can take oodles of time for thousands of files. so | |
458 | * cache the last lookup and compare with that before going through | |
459 | * everything again. | |
460 | */ | |
461 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 462 | return last_du; |
9f8f2064 JA |
463 | |
464 | last_mindev = mindev; | |
465 | last_majdev = majdev; | |
5ec10eaa | 466 | |
9f8f2064 | 467 | sprintf(foo, "/sys/block"); |
ac0be2ac | 468 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 469 | return NULL; |
9f8f2064 | 470 | |
c97bd0fa | 471 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 472 | } |
9f8f2064 | 473 | |
c97bd0fa JA |
474 | static struct disk_util *__init_disk_util(struct thread_data *td, |
475 | struct fio_file *f) | |
67423013 ST |
476 | { |
477 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
478 | } |
479 | ||
480 | void init_disk_util(struct thread_data *td) | |
481 | { | |
482 | struct fio_file *f; | |
483 | unsigned int i; | |
484 | ||
485 | if (!td->o.do_disk_util || | |
486 | (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) | |
487 | return; | |
488 | ||
489 | for_each_file(td, f, i) | |
c97bd0fa | 490 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
491 | } |
492 | ||
f2f788dd | 493 | static void show_agg_stats(struct disk_util_agg *agg, int terse) |
d09a64a0 JA |
494 | { |
495 | if (!agg->slavecount) | |
496 | return; | |
497 | ||
f2f788dd JA |
498 | if (!terse) { |
499 | log_info(", aggrios=%u/%u, aggrmerge=%u/%u, aggrticks=%u/%u," | |
500 | " aggrin_queue=%u, aggrutil=%3.2f%%", | |
501 | agg->ios[0] / agg->slavecount, | |
502 | agg->ios[1] / agg->slavecount, | |
503 | agg->merges[0] / agg->slavecount, | |
504 | agg->merges[1] / agg->slavecount, | |
505 | agg->ticks[0] / agg->slavecount, | |
506 | agg->ticks[1] / agg->slavecount, | |
507 | agg->time_in_queue / agg->slavecount, | |
508 | agg->max_util.u.f); | |
509 | } else { | |
97b007ec | 510 | log_info(";slaves;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
f2f788dd JA |
511 | agg->ios[0] / agg->slavecount, |
512 | agg->ios[1] / agg->slavecount, | |
513 | agg->merges[0] / agg->slavecount, | |
514 | agg->merges[1] / agg->slavecount, | |
515 | agg->ticks[0] / agg->slavecount, | |
516 | agg->ticks[1] / agg->slavecount, | |
517 | agg->time_in_queue / agg->slavecount, | |
518 | agg->max_util.u.f); | |
519 | } | |
d09a64a0 JA |
520 | } |
521 | ||
043b74b9 ST |
522 | static void aggregate_slaves_stats(struct disk_util *masterdu) |
523 | { | |
d09a64a0 | 524 | struct disk_util_agg *agg = &masterdu->agg; |
043b74b9 ST |
525 | struct disk_util_stat *dus; |
526 | struct flist_head *entry; | |
527 | struct disk_util *slavedu; | |
d09a64a0 | 528 | double util; |
043b74b9 ST |
529 | |
530 | flist_for_each(entry, &masterdu->slaves) { | |
531 | slavedu = flist_entry(entry, struct disk_util, slavelist); | |
532 | dus = &slavedu->dus; | |
a3b4cf7d JA |
533 | agg->ios[0] += dus->s.ios[0]; |
534 | agg->ios[1] += dus->s.ios[1]; | |
535 | agg->merges[0] += dus->s.merges[0]; | |
536 | agg->merges[1] += dus->s.merges[1]; | |
537 | agg->sectors[0] += dus->s.sectors[0]; | |
538 | agg->sectors[1] += dus->s.sectors[1]; | |
539 | agg->ticks[0] += dus->s.ticks[0]; | |
540 | agg->ticks[1] += dus->s.ticks[1]; | |
541 | agg->time_in_queue += dus->s.time_in_queue; | |
d09a64a0 JA |
542 | agg->slavecount++; |
543 | ||
a3b4cf7d | 544 | util = (double) (100 * dus->s.io_ticks / (double) slavedu->dus.s.msec); |
043b74b9 ST |
545 | /* System utilization is the utilization of the |
546 | * component with the highest utilization. | |
547 | */ | |
d09a64a0 JA |
548 | if (util > agg->max_util.u.f) |
549 | agg->max_util.u.f = util; | |
043b74b9 ST |
550 | |
551 | } | |
552 | ||
d09a64a0 JA |
553 | if (agg->max_util.u.f > 100.0) |
554 | agg->max_util.u.f = 100.0; | |
555 | } | |
556 | ||
27357187 | 557 | void disk_util_prune_entries(void) |
d09a64a0 | 558 | { |
9ec7779f JA |
559 | fio_mutex_down(disk_util_mutex); |
560 | ||
d09a64a0 | 561 | while (!flist_empty(&disk_list)) { |
27357187 JA |
562 | struct disk_util *du; |
563 | ||
d09a64a0 JA |
564 | du = flist_entry(disk_list.next, struct disk_util, list); |
565 | flist_del(&du->list); | |
566 | disk_util_free(du); | |
567 | } | |
043b74b9 | 568 | |
d09a64a0 | 569 | last_majdev = last_mindev = -1; |
9ec7779f JA |
570 | fio_mutex_up(disk_util_mutex); |
571 | fio_mutex_remove(disk_util_mutex); | |
d09a64a0 JA |
572 | } |
573 | ||
f2f788dd JA |
574 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
575 | int terse) | |
d09a64a0 | 576 | { |
6914f59e | 577 | double util = 0; |
d09a64a0 | 578 | |
a3b4cf7d JA |
579 | if (dus->s.msec) |
580 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
d09a64a0 JA |
581 | if (util > 100.0) |
582 | util = 100.0; | |
583 | ||
f2f788dd | 584 | if (!terse) { |
f1d64553 JA |
585 | if (agg->slavecount) |
586 | log_info(" "); | |
587 | ||
f2f788dd JA |
588 | log_info(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, " |
589 | "in_queue=%u, util=%3.2f%%", dus->name, | |
a3b4cf7d JA |
590 | dus->s.ios[0], dus->s.ios[1], |
591 | dus->s.merges[0], dus->s.merges[1], | |
592 | dus->s.ticks[0], dus->s.ticks[1], | |
593 | dus->s.time_in_queue, util); | |
f2f788dd | 594 | } else { |
3d7cd9b4 | 595 | log_info(";%s;%u;%u;%u;%u;%u;%u;%u;%3.2f%%", |
a3b4cf7d JA |
596 | dus->name, dus->s.ios[0], |
597 | dus->s.ios[1], dus->s.merges[0], | |
598 | dus->s.merges[1], dus->s.ticks[0], | |
599 | dus->s.ticks[1], | |
600 | dus->s.time_in_queue, util); | |
f2f788dd | 601 | } |
d09a64a0 JA |
602 | |
603 | /* | |
604 | * If the device has slaves, aggregate the stats for | |
605 | * those slave devices also. | |
606 | */ | |
f1d64553 | 607 | show_agg_stats(agg, terse); |
d09a64a0 | 608 | |
f2f788dd JA |
609 | if (!terse) |
610 | log_info("\n"); | |
043b74b9 ST |
611 | } |
612 | ||
952b05e0 CF |
613 | void json_array_add_disk_util(struct disk_util_stat *dus, |
614 | struct disk_util_agg *agg, struct json_array *array) | |
cc372b17 | 615 | { |
cc372b17 | 616 | struct json_object *obj; |
952b05e0 | 617 | double util = 0; |
cc372b17 | 618 | |
a3b4cf7d JA |
619 | if (dus->s.msec) |
620 | util = (double) 100 * dus->s.io_ticks / (double) dus->s.msec; | |
cc372b17 SL |
621 | if (util > 100.0) |
622 | util = 100.0; | |
623 | ||
952b05e0 CF |
624 | obj = json_create_object(); |
625 | json_array_add_value_object(array, obj); | |
cc372b17 SL |
626 | |
627 | json_object_add_value_string(obj, "name", dus->name); | |
a3b4cf7d JA |
628 | json_object_add_value_int(obj, "read_ios", dus->s.ios[0]); |
629 | json_object_add_value_int(obj, "write_ios", dus->s.ios[1]); | |
630 | json_object_add_value_int(obj, "read_merges", dus->s.merges[0]); | |
631 | json_object_add_value_int(obj, "write_merges", dus->s.merges[1]); | |
632 | json_object_add_value_int(obj, "read_ticks", dus->s.ticks[0]); | |
633 | json_object_add_value_int(obj, "write_ticks", dus->s.ticks[1]); | |
634 | json_object_add_value_int(obj, "in_queue", dus->s.time_in_queue); | |
cc372b17 SL |
635 | json_object_add_value_float(obj, "util", util); |
636 | ||
637 | /* | |
638 | * If the device has slaves, aggregate the stats for | |
639 | * those slave devices also. | |
640 | */ | |
641 | if (!agg->slavecount) | |
642 | return; | |
643 | json_object_add_value_int(obj, "aggr_read_ios", | |
644 | agg->ios[0] / agg->slavecount); | |
645 | json_object_add_value_int(obj, "aggr_write_ios", | |
646 | agg->ios[1] / agg->slavecount); | |
647 | json_object_add_value_int(obj, "aggr_read_merges", | |
648 | agg->merges[0] / agg->slavecount); | |
649 | json_object_add_value_int(obj, "aggr_write_merge", | |
650 | agg->merges[1] / agg->slavecount); | |
651 | json_object_add_value_int(obj, "aggr_read_ticks", | |
652 | agg->ticks[0] / agg->slavecount); | |
653 | json_object_add_value_int(obj, "aggr_write_ticks", | |
654 | agg->ticks[1] / agg->slavecount); | |
655 | json_object_add_value_int(obj, "aggr_in_queue", | |
656 | agg->time_in_queue / agg->slavecount); | |
657 | json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f); | |
658 | } | |
659 | ||
10aa136b JA |
660 | static void json_object_add_disk_utils(struct json_object *obj, |
661 | struct flist_head *head) | |
952b05e0 CF |
662 | { |
663 | struct json_array *array = json_create_array(); | |
664 | struct flist_head *entry; | |
665 | struct disk_util *du; | |
666 | ||
667 | json_object_add_value_array(obj, "disk_util", array); | |
668 | ||
669 | flist_for_each(entry, head) { | |
670 | du = flist_entry(entry, struct disk_util, list); | |
671 | ||
672 | aggregate_slaves_stats(du); | |
673 | json_array_add_disk_util(&du->dus, &du->agg, array); | |
674 | } | |
675 | } | |
676 | ||
cc372b17 | 677 | void show_disk_util(int terse, struct json_object *parent) |
9f8f2064 | 678 | { |
d09a64a0 | 679 | struct flist_head *entry; |
9f8f2064 | 680 | struct disk_util *du; |
9f8f2064 | 681 | |
9ec7779f JA |
682 | fio_mutex_down(disk_util_mutex); |
683 | ||
684 | if (flist_empty(&disk_list)) { | |
685 | fio_mutex_up(disk_util_mutex); | |
0a839f30 | 686 | return; |
9ec7779f | 687 | } |
0a839f30 | 688 | |
952b05e0 | 689 | if (!terse && !parent) |
f2f788dd | 690 | log_info("\nDisk stats (read/write):\n"); |
9f8f2064 | 691 | |
aeb32dfc | 692 | if (output_format == FIO_OUTPUT_JSON) { |
952b05e0 CF |
693 | json_object_add_disk_utils(parent, &disk_list); |
694 | } else | |
695 | flist_for_each(entry, &disk_list) { | |
696 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 697 | |
952b05e0 | 698 | aggregate_slaves_stats(du); |
cc372b17 | 699 | print_disk_util(&du->dus, &du->agg, terse); |
952b05e0 | 700 | } |
9ec7779f JA |
701 | |
702 | fio_mutex_up(disk_util_mutex); | |
703 | } | |
704 | ||
705 | void setup_disk_util(void) | |
706 | { | |
521da527 | 707 | disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
9f8f2064 | 708 | } |