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> | |
9edf7b3e | 9 | #include <assert.h> |
9f8f2064 JA |
10 | |
11 | #include "fio.h" | |
c97bd0fa | 12 | #include "smalloc.h" |
7c9b1bce | 13 | #include "diskutil.h" |
9f8f2064 JA |
14 | |
15 | static int last_majdev, last_mindev; | |
c97bd0fa | 16 | static struct disk_util *last_du; |
9f8f2064 | 17 | |
9ec7779f | 18 | static struct fio_mutex *disk_util_mutex; |
9ec7779f | 19 | |
d09a64a0 | 20 | FLIST_HEAD(disk_list); |
9f8f2064 | 21 | |
2db4ecca JA |
22 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
23 | int majdev, int mindev, char *path); | |
24 | ||
c97bd0fa JA |
25 | static void disk_util_free(struct disk_util *du) |
26 | { | |
27 | if (du == last_du) | |
28 | last_du = NULL; | |
29 | ||
b8d541d5 JA |
30 | while (!flist_empty(&du->slaves)) { |
31 | struct disk_util *slave; | |
32 | ||
9342d5f8 | 33 | slave = flist_first_entry(&du->slaves, struct disk_util, slavelist); |
b8d541d5 JA |
34 | flist_del(&slave->slavelist); |
35 | slave->users--; | |
36 | } | |
93bcfd20 | 37 | |
c97bd0fa | 38 | fio_mutex_remove(du->lock); |
c97bd0fa JA |
39 | sfree(du); |
40 | } | |
41 | ||
9f8f2064 JA |
42 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) |
43 | { | |
44 | unsigned in_flight; | |
d09a64a0 | 45 | unsigned long long sectors[2]; |
9f8f2064 JA |
46 | char line[256]; |
47 | FILE *f; | |
48 | char *p; | |
5ec10eaa | 49 | int ret; |
9f8f2064 | 50 | |
cd991b9e JA |
51 | dprint(FD_DISKUTIL, "open stat file: %s\n", du->path); |
52 | ||
9f8f2064 JA |
53 | f = fopen(du->path, "r"); |
54 | if (!f) | |
55 | return 1; | |
56 | ||
57 | p = fgets(line, sizeof(line), f); | |
58 | if (!p) { | |
59 | fclose(f); | |
60 | return 1; | |
61 | } | |
62 | ||
cd991b9e JA |
63 | dprint(FD_DISKUTIL, "%s: %s", du->path, p); |
64 | ||
504bc961 JA |
65 | ret = sscanf(p, "%llu %llu %llu %llu %llu %llu %llu %llu %u %llu %llu\n", |
66 | (unsigned long long *) &dus->s.ios[0], | |
67 | (unsigned long long *) &dus->s.merges[0], | |
68 | §ors[0], | |
69 | (unsigned long long *) &dus->s.ticks[0], | |
70 | (unsigned long long *) &dus->s.ios[1], | |
71 | (unsigned long long *) &dus->s.merges[1], | |
72 | §ors[1], | |
73 | (unsigned long long *) &dus->s.ticks[1], | |
74 | &in_flight, | |
75 | (unsigned long long *) &dus->s.io_ticks, | |
76 | (unsigned long long *) &dus->s.time_in_queue); | |
9f8f2064 | 77 | fclose(f); |
cd991b9e | 78 | dprint(FD_DISKUTIL, "%s: stat read ok? %d\n", du->path, ret == 1); |
a3b4cf7d JA |
79 | dus->s.sectors[0] = sectors[0]; |
80 | dus->s.sectors[1] = sectors[1]; | |
cd991b9e | 81 | return ret != 11; |
9f8f2064 JA |
82 | } |
83 | ||
84 | static void update_io_tick_disk(struct disk_util *du) | |
85 | { | |
86 | struct disk_util_stat __dus, *dus, *ldus; | |
87 | struct timeval t; | |
88 | ||
c97bd0fa JA |
89 | if (!du->users) |
90 | return; | |
90b97ac3 JA |
91 | if (get_io_ticks(du, &__dus)) |
92 | return; | |
9f8f2064 JA |
93 | |
94 | dus = &du->dus; | |
95 | ldus = &du->last_dus; | |
96 | ||
a3b4cf7d JA |
97 | dus->s.sectors[0] += (__dus.s.sectors[0] - ldus->s.sectors[0]); |
98 | dus->s.sectors[1] += (__dus.s.sectors[1] - ldus->s.sectors[1]); | |
99 | dus->s.ios[0] += (__dus.s.ios[0] - ldus->s.ios[0]); | |
100 | dus->s.ios[1] += (__dus.s.ios[1] - ldus->s.ios[1]); | |
101 | dus->s.merges[0] += (__dus.s.merges[0] - ldus->s.merges[0]); | |
102 | dus->s.merges[1] += (__dus.s.merges[1] - ldus->s.merges[1]); | |
103 | dus->s.ticks[0] += (__dus.s.ticks[0] - ldus->s.ticks[0]); | |
104 | dus->s.ticks[1] += (__dus.s.ticks[1] - ldus->s.ticks[1]); | |
105 | dus->s.io_ticks += (__dus.s.io_ticks - ldus->s.io_ticks); | |
106 | dus->s.time_in_queue += (__dus.s.time_in_queue - ldus->s.time_in_queue); | |
9f8f2064 JA |
107 | |
108 | fio_gettime(&t, NULL); | |
a3b4cf7d | 109 | dus->s.msec += mtime_since(&du->time, &t); |
9f8f2064 | 110 | memcpy(&du->time, &t, sizeof(t)); |
a3b4cf7d | 111 | memcpy(&ldus->s, &__dus.s, sizeof(__dus.s)); |
9f8f2064 JA |
112 | } |
113 | ||
9ec7779f | 114 | int update_io_ticks(void) |
9f8f2064 | 115 | { |
01743ee1 | 116 | struct flist_head *entry; |
9f8f2064 | 117 | struct disk_util *du; |
9ec7779f | 118 | int ret = 0; |
9f8f2064 | 119 | |
cd991b9e JA |
120 | dprint(FD_DISKUTIL, "update io ticks\n"); |
121 | ||
9ec7779f JA |
122 | fio_mutex_down(disk_util_mutex); |
123 | ||
5ddc6707 | 124 | if (!helper_exit) { |
9ec7779f JA |
125 | flist_for_each(entry, &disk_list) { |
126 | du = flist_entry(entry, struct disk_util, list); | |
127 | update_io_tick_disk(du); | |
128 | } | |
129 | } else | |
130 | ret = 1; | |
131 | ||
132 | fio_mutex_up(disk_util_mutex); | |
133 | return ret; | |
9f8f2064 JA |
134 | } |
135 | ||
e11c410c | 136 | static struct disk_util *disk_util_exists(int major, int minor) |
9f8f2064 | 137 | { |
01743ee1 | 138 | struct flist_head *entry; |
9f8f2064 JA |
139 | struct disk_util *du; |
140 | ||
9ec7779f JA |
141 | fio_mutex_down(disk_util_mutex); |
142 | ||
01743ee1 JA |
143 | flist_for_each(entry, &disk_list) { |
144 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 145 | |
9ec7779f JA |
146 | if (major == du->major && minor == du->minor) { |
147 | fio_mutex_up(disk_util_mutex); | |
e11c410c | 148 | return du; |
9ec7779f | 149 | } |
9f8f2064 JA |
150 | } |
151 | ||
9ec7779f | 152 | fio_mutex_up(disk_util_mutex); |
e11c410c | 153 | return NULL; |
9f8f2064 JA |
154 | } |
155 | ||
67423013 ST |
156 | static int get_device_numbers(char *file_name, int *maj, int *min) |
157 | { | |
158 | struct stat st; | |
159 | int majdev, mindev; | |
160 | char tempname[PATH_MAX], *p; | |
161 | ||
162 | if (!lstat(file_name, &st)) { | |
163 | if (S_ISBLK(st.st_mode)) { | |
164 | majdev = major(st.st_rdev); | |
165 | mindev = minor(st.st_rdev); | |
166 | } else if (S_ISCHR(st.st_mode)) { | |
167 | majdev = major(st.st_rdev); | |
168 | mindev = minor(st.st_rdev); | |
169 | if (fio_lookup_raw(st.st_rdev, &majdev, &mindev)) | |
170 | return -1; | |
171 | } else if (S_ISFIFO(st.st_mode)) | |
172 | return -1; | |
173 | else { | |
174 | majdev = major(st.st_dev); | |
175 | mindev = minor(st.st_dev); | |
176 | } | |
177 | } else { | |
178 | /* | |
179 | * must be a file, open "." in that path | |
180 | */ | |
181 | strncpy(tempname, file_name, PATH_MAX - 1); | |
182 | p = dirname(tempname); | |
183 | if (stat(p, &st)) { | |
184 | perror("disk util stat"); | |
185 | return -1; | |
186 | } | |
187 | ||
188 | majdev = major(st.st_dev); | |
189 | mindev = minor(st.st_dev); | |
190 | } | |
191 | ||
192 | *min = mindev; | |
193 | *maj = majdev; | |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
198 | static int read_block_dev_entry(char *path, int *maj, int *min) | |
199 | { | |
200 | char line[256], *p; | |
201 | FILE *f; | |
202 | ||
203 | f = fopen(path, "r"); | |
204 | if (!f) { | |
205 | perror("open path"); | |
206 | return 1; | |
207 | } | |
208 | ||
209 | p = fgets(line, sizeof(line), f); | |
210 | fclose(f); | |
211 | ||
212 | if (!p) | |
213 | return 1; | |
214 | ||
215 | if (sscanf(p, "%u:%u", maj, min) != 2) | |
216 | return 1; | |
217 | ||
218 | return 0; | |
219 | } | |
220 | ||
67423013 | 221 | static void find_add_disk_slaves(struct thread_data *td, char *path, |
2db4ecca | 222 | struct disk_util *masterdu) |
67423013 ST |
223 | { |
224 | DIR *dirhandle = NULL; | |
225 | struct dirent *dirent = NULL; | |
226 | char slavesdir[PATH_MAX], temppath[PATH_MAX], slavepath[PATH_MAX]; | |
227 | struct disk_util *slavedu = NULL; | |
228 | int majdev, mindev; | |
229 | ssize_t linklen; | |
230 | ||
2db4ecca | 231 | sprintf(slavesdir, "%s/%s", path, "slaves"); |
67423013 ST |
232 | dirhandle = opendir(slavesdir); |
233 | if (!dirhandle) | |
234 | return; | |
235 | ||
236 | while ((dirent = readdir(dirhandle)) != NULL) { | |
2db4ecca JA |
237 | if (!strcmp(dirent->d_name, ".") || |
238 | !strcmp(dirent->d_name, "..")) | |
67423013 ST |
239 | continue; |
240 | ||
b9fd788f | 241 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, dirent->d_name); |
67423013 ST |
242 | /* Can we always assume that the slaves device entries |
243 | * are links to the real directories for the slave | |
244 | * devices? | |
245 | */ | |
976406b8 | 246 | linklen = readlink(temppath, slavepath, PATH_MAX - 1); |
2db4ecca | 247 | if (linklen < 0) { |
67423013 | 248 | perror("readlink() for slave device."); |
f0cc675f | 249 | closedir(dirhandle); |
67423013 ST |
250 | return; |
251 | } | |
2db4ecca | 252 | slavepath[linklen] = '\0'; |
67423013 ST |
253 | |
254 | sprintf(temppath, "%s/%s/dev", slavesdir, slavepath); | |
255 | if (read_block_dev_entry(temppath, &majdev, &mindev)) { | |
256 | perror("Error getting slave device numbers."); | |
f0cc675f | 257 | closedir(dirhandle); |
67423013 ST |
258 | return; |
259 | } | |
260 | ||
b06de82e AB |
261 | /* |
262 | * See if this maj,min already exists | |
263 | */ | |
264 | slavedu = disk_util_exists(majdev, mindev); | |
265 | if (slavedu) | |
266 | continue; | |
267 | ||
b9fd788f | 268 | sprintf(temppath, "%s%s%s", slavesdir, FIO_OS_PATH_SEPARATOR, slavepath); |
67423013 ST |
269 | __init_per_file_disk_util(td, majdev, mindev, temppath); |
270 | slavedu = disk_util_exists(majdev, mindev); | |
271 | ||
272 | /* Should probably use an assert here. slavedu should | |
273 | * always be present at this point. */ | |
b8d541d5 JA |
274 | if (slavedu) { |
275 | slavedu->users++; | |
67423013 | 276 | flist_add_tail(&slavedu->slavelist, &masterdu->slaves); |
b8d541d5 | 277 | } |
67423013 ST |
278 | } |
279 | ||
280 | closedir(dirhandle); | |
67423013 ST |
281 | } |
282 | ||
b8fefc2b | 283 | static struct disk_util *disk_util_add(struct thread_data *td, int majdev, |
c97bd0fa | 284 | int mindev, char *path) |
9f8f2064 JA |
285 | { |
286 | struct disk_util *du, *__du; | |
01743ee1 | 287 | struct flist_head *entry; |
4b919f77 | 288 | int l; |
9f8f2064 | 289 | |
cd991b9e JA |
290 | dprint(FD_DISKUTIL, "add maj/min %d/%d: %s\n", majdev, mindev, path); |
291 | ||
c97bd0fa | 292 | du = smalloc(sizeof(*du)); |
fba5c5ff JA |
293 | if (!du) { |
294 | log_err("fio: smalloc() pool exhausted\n"); | |
295 | return NULL; | |
296 | } | |
297 | ||
9f8f2064 | 298 | memset(du, 0, sizeof(*du)); |
01743ee1 | 299 | INIT_FLIST_HEAD(&du->list); |
4b919f77 KR |
300 | l = snprintf(du->path, sizeof(du->path), "%s/stat", path); |
301 | if (l < 0 || l >= sizeof(du->path)) { | |
302 | log_err("constructed path \"%.100s[...]/stat\" larger than buffer (%zu bytes)\n", | |
303 | path, sizeof(du->path) - 1); | |
304 | sfree(du); | |
305 | return NULL; | |
306 | } | |
a2ba41ed | 307 | strncpy((char *) du->dus.name, basename(path), FIO_DU_NAME_SZ - 1); |
e11c410c | 308 | du->sysfs_root = path; |
9f8f2064 JA |
309 | du->major = majdev; |
310 | du->minor = mindev; | |
67423013 ST |
311 | INIT_FLIST_HEAD(&du->slavelist); |
312 | INIT_FLIST_HEAD(&du->slaves); | |
521da527 | 313 | du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
c97bd0fa | 314 | du->users = 0; |
9f8f2064 | 315 | |
9ec7779f JA |
316 | fio_mutex_down(disk_util_mutex); |
317 | ||
01743ee1 JA |
318 | flist_for_each(entry, &disk_list) { |
319 | __du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 320 | |
d09a64a0 | 321 | dprint(FD_DISKUTIL, "found %s in list\n", __du->dus.name); |
cd991b9e | 322 | |
d09a64a0 | 323 | if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) { |
c97bd0fa | 324 | disk_util_free(du); |
9ec7779f | 325 | fio_mutex_up(disk_util_mutex); |
c97bd0fa | 326 | return __du; |
9f8f2064 JA |
327 | } |
328 | } | |
329 | ||
d09a64a0 | 330 | dprint(FD_DISKUTIL, "add %s to list\n", du->dus.name); |
cd991b9e | 331 | |
9f8f2064 JA |
332 | fio_gettime(&du->time, NULL); |
333 | get_io_ticks(du, &du->last_dus); | |
334 | ||
01743ee1 | 335 | flist_add_tail(&du->list, &disk_list); |
9ec7779f JA |
336 | fio_mutex_up(disk_util_mutex); |
337 | ||
67423013 | 338 | find_add_disk_slaves(td, path, du); |
c97bd0fa | 339 | return du; |
9f8f2064 JA |
340 | } |
341 | ||
342 | static int check_dev_match(int majdev, int mindev, char *path) | |
343 | { | |
344 | int major, minor; | |
9f8f2064 | 345 | |
67423013 | 346 | if (read_block_dev_entry(path, &major, &minor)) |
9f8f2064 | 347 | return 1; |
9f8f2064 | 348 | |
c97bd0fa | 349 | if (majdev == major && mindev == minor) |
9f8f2064 | 350 | return 0; |
9f8f2064 | 351 | |
9f8f2064 JA |
352 | return 1; |
353 | } | |
354 | ||
ac0be2ac | 355 | static int find_block_dir(int majdev, int mindev, char *path, int link_ok) |
9f8f2064 JA |
356 | { |
357 | struct dirent *dir; | |
358 | struct stat st; | |
359 | int found = 0; | |
360 | DIR *D; | |
361 | ||
362 | D = opendir(path); | |
363 | if (!D) | |
364 | return 0; | |
365 | ||
366 | while ((dir = readdir(D)) != NULL) { | |
367 | char full_path[256]; | |
368 | ||
369 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
370 | continue; | |
371 | ||
b9fd788f | 372 | sprintf(full_path, "%s%s%s", path, FIO_OS_PATH_SEPARATOR, dir->d_name); |
9f8f2064 JA |
373 | |
374 | if (!strcmp(dir->d_name, "dev")) { | |
375 | if (!check_dev_match(majdev, mindev, full_path)) { | |
376 | found = 1; | |
377 | break; | |
378 | } | |
379 | } | |
380 | ||
ac0be2ac JA |
381 | if (link_ok) { |
382 | if (stat(full_path, &st) == -1) { | |
383 | perror("stat"); | |
384 | break; | |
385 | } | |
386 | } else { | |
387 | if (lstat(full_path, &st) == -1) { | |
388 | perror("stat"); | |
389 | break; | |
390 | } | |
9f8f2064 JA |
391 | } |
392 | ||
393 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
394 | continue; | |
395 | ||
ac0be2ac | 396 | found = find_block_dir(majdev, mindev, full_path, 0); |
9f8f2064 JA |
397 | if (found) { |
398 | strcpy(path, full_path); | |
399 | break; | |
400 | } | |
401 | } | |
402 | ||
403 | closedir(D); | |
404 | return found; | |
405 | } | |
406 | ||
c97bd0fa JA |
407 | static struct disk_util *__init_per_file_disk_util(struct thread_data *td, |
408 | int majdev, int mindev, | |
409 | char *path) | |
9f8f2064 JA |
410 | { |
411 | struct stat st; | |
67423013 | 412 | char tmp[PATH_MAX]; |
9f8f2064 JA |
413 | char *p; |
414 | ||
67423013 ST |
415 | /* |
416 | * If there's a ../queue/ directory there, we are inside a partition. | |
417 | * Check if that is the case and jump back. For loop/md/dm etc we | |
418 | * are already in the right spot. | |
419 | */ | |
420 | sprintf(tmp, "%s/../queue", path); | |
421 | if (!stat(tmp, &st)) { | |
422 | p = dirname(path); | |
423 | sprintf(tmp, "%s/queue", p); | |
424 | if (stat(tmp, &st)) { | |
425 | log_err("unknown sysfs layout\n"); | |
c97bd0fa | 426 | return NULL; |
9f8f2064 | 427 | } |
67423013 ST |
428 | strncpy(tmp, p, PATH_MAX - 1); |
429 | sprintf(path, "%s", tmp); | |
9f8f2064 JA |
430 | } |
431 | ||
67423013 ST |
432 | if (td->o.ioscheduler && !td->sysfs_root) |
433 | td->sysfs_root = strdup(path); | |
434 | ||
c97bd0fa | 435 | return disk_util_add(td, majdev, mindev, path); |
67423013 ST |
436 | } |
437 | ||
c97bd0fa JA |
438 | static struct disk_util *init_per_file_disk_util(struct thread_data *td, |
439 | char *filename) | |
67423013 ST |
440 | { |
441 | ||
442 | char foo[PATH_MAX]; | |
443 | struct disk_util *du; | |
444 | int mindev, majdev; | |
445 | ||
c97bd0fa JA |
446 | if (get_device_numbers(filename, &majdev, &mindev)) |
447 | return NULL; | |
67423013 ST |
448 | |
449 | dprint(FD_DISKUTIL, "%s belongs to maj/min %d/%d\n", filename, majdev, | |
450 | mindev); | |
cd991b9e | 451 | |
e11c410c JA |
452 | du = disk_util_exists(majdev, mindev); |
453 | if (du) { | |
454 | if (td->o.ioscheduler && !td->sysfs_root) | |
455 | td->sysfs_root = strdup(du->sysfs_root); | |
456 | ||
c97bd0fa | 457 | return du; |
e11c410c | 458 | } |
9f8f2064 JA |
459 | |
460 | /* | |
461 | * for an fs without a device, we will repeatedly stat through | |
462 | * sysfs which can take oodles of time for thousands of files. so | |
463 | * cache the last lookup and compare with that before going through | |
464 | * everything again. | |
465 | */ | |
466 | if (mindev == last_mindev && majdev == last_majdev) | |
c97bd0fa | 467 | return last_du; |
9f8f2064 JA |
468 | |
469 | last_mindev = mindev; | |
470 | last_majdev = majdev; | |
5ec10eaa | 471 | |
9f8f2064 | 472 | sprintf(foo, "/sys/block"); |
ac0be2ac | 473 | if (!find_block_dir(majdev, mindev, foo, 1)) |
c97bd0fa | 474 | return NULL; |
9f8f2064 | 475 | |
c97bd0fa | 476 | return __init_per_file_disk_util(td, majdev, mindev, foo); |
67423013 | 477 | } |
9f8f2064 | 478 | |
c97bd0fa JA |
479 | static struct disk_util *__init_disk_util(struct thread_data *td, |
480 | struct fio_file *f) | |
67423013 ST |
481 | { |
482 | return init_per_file_disk_util(td, f->file_name); | |
9f8f2064 JA |
483 | } |
484 | ||
485 | void init_disk_util(struct thread_data *td) | |
486 | { | |
487 | struct fio_file *f; | |
488 | unsigned int i; | |
489 | ||
490 | if (!td->o.do_disk_util || | |
491 | (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) | |
492 | return; | |
493 | ||
494 | for_each_file(td, f, i) | |
c97bd0fa | 495 | f->du = __init_disk_util(td, f); |
9f8f2064 JA |
496 | } |
497 | ||
f2f788dd | 498 | static void show_agg_stats(struct disk_util_agg *agg, int terse) |
d09a64a0 JA |
499 | { |
500 | if (!agg->slavecount) | |
501 | return; | |
502 | ||
f2f788dd | 503 | if (!terse) { |
504bc961 JA |
504 | log_info(", aggrios=%llu/%llu, aggrmerge=%llu/%llu, " |
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 { |
504bc961 JA |
516 | log_info(";slaves;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
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 | { |
9ec7779f JA |
565 | fio_mutex_down(disk_util_mutex); |
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; |
9ec7779f JA |
576 | fio_mutex_up(disk_util_mutex); |
577 | fio_mutex_remove(disk_util_mutex); | |
d09a64a0 JA |
578 | } |
579 | ||
f2f788dd JA |
580 | void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg, |
581 | int terse) | |
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 JA |
591 | if (agg->slavecount) |
592 | log_info(" "); | |
593 | ||
504bc961 JA |
594 | log_info(" %s: ios=%llu/%llu, merge=%llu/%llu, " |
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 { |
504bc961 JA |
606 | log_info(";%s;%llu;%llu;%llu;%llu;%llu;%llu;%llu;%3.2f%%", |
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 | */ | |
f1d64553 | 622 | show_agg_stats(agg, terse); |
d09a64a0 | 623 | |
f2f788dd JA |
624 | if (!terse) |
625 | log_info("\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 | ||
cc372b17 | 692 | void show_disk_util(int terse, struct json_object *parent) |
9f8f2064 | 693 | { |
d09a64a0 | 694 | struct flist_head *entry; |
9f8f2064 | 695 | struct disk_util *du; |
9f8f2064 | 696 | |
67a176fc JA |
697 | if (!disk_util_mutex) |
698 | return; | |
699 | ||
9ec7779f JA |
700 | fio_mutex_down(disk_util_mutex); |
701 | ||
702 | if (flist_empty(&disk_list)) { | |
703 | fio_mutex_up(disk_util_mutex); | |
0a839f30 | 704 | return; |
9ec7779f | 705 | } |
0a839f30 | 706 | |
9edf7b3e JA |
707 | if (output_format == FIO_OUTPUT_JSON) |
708 | assert(parent); | |
709 | ||
710 | if (!terse && output_format != FIO_OUTPUT_JSON) | |
f2f788dd | 711 | log_info("\nDisk stats (read/write):\n"); |
9f8f2064 | 712 | |
9edf7b3e | 713 | if (output_format == FIO_OUTPUT_JSON) |
952b05e0 | 714 | json_object_add_disk_utils(parent, &disk_list); |
9edf7b3e | 715 | else |
952b05e0 CF |
716 | flist_for_each(entry, &disk_list) { |
717 | du = flist_entry(entry, struct disk_util, list); | |
9f8f2064 | 718 | |
952b05e0 | 719 | aggregate_slaves_stats(du); |
cc372b17 | 720 | print_disk_util(&du->dus, &du->agg, terse); |
952b05e0 | 721 | } |
9ec7779f JA |
722 | |
723 | fio_mutex_up(disk_util_mutex); | |
724 | } | |
725 | ||
726 | void setup_disk_util(void) | |
727 | { | |
521da527 | 728 | disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
9f8f2064 | 729 | } |