3 // ----------------------------------------------------------------------------
6 static int cgroup_enable_cpuacct_stat = CONFIG_ONDEMAND_ONDEMAND;
7 static int cgroup_enable_cpuacct_usage = CONFIG_ONDEMAND_ONDEMAND;
8 static int cgroup_enable_memory = CONFIG_ONDEMAND_ONDEMAND;
9 static int cgroup_enable_devices = CONFIG_ONDEMAND_ONDEMAND;
10 static int cgroup_enable_blkio = CONFIG_ONDEMAND_ONDEMAND;
11 static int cgroup_enable_new_cgroups_detected_at_runtime = 1;
12 static int cgroup_check_for_new_every = 10;
13 static char *cgroup_cpuacct_base = NULL;
14 static char *cgroup_blkio_base = NULL;
15 static char *cgroup_memory_base = NULL;
16 static char *cgroup_devices_base = NULL;
18 static int cgroup_root_count = 0;
19 static int cgroup_root_max = 500;
20 static int cgroup_max_depth = 0;
22 void read_cgroup_plugin_configuration() {
23 cgroup_check_for_new_every = config_get_number("plugin:cgroups", "check for new cgroups every", cgroup_check_for_new_every);
25 cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat", cgroup_enable_cpuacct_stat);
26 cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage", cgroup_enable_cpuacct_usage);
27 cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
28 cgroup_enable_blkio = config_get_boolean_ondemand("plugin:cgroups", "enable blkio", cgroup_enable_blkio);
30 char filename[FILENAME_MAX + 1], *s;
31 struct mountinfo *mi, *root = mountinfo_read();
33 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
34 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
36 error("Cannot find cgroup cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
37 s = "/sys/fs/cgroup/cpuacct";
39 else s = mi->mount_point;
40 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
41 cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
43 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
44 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
46 error("Cannot find cgroup blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
47 s = "/sys/fs/cgroup/blkio";
49 else s = mi->mount_point;
50 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
51 cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
53 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
54 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
56 error("Cannot find cgroup memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
57 s = "/sys/fs/cgroup/memory";
59 else s = mi->mount_point;
60 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
61 cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
63 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices");
64 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices");
66 error("Cannot find cgroup devices mountinfo. Assuming default: /sys/fs/cgroup/devices");
67 s = "/sys/fs/cgroup/devices";
69 else s = mi->mount_point;
70 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
71 cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename);
73 cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
74 cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
76 cgroup_enable_new_cgroups_detected_at_runtime = config_get_boolean("plugin:cgroups", "enable new cgroups detected at run time", cgroup_enable_new_cgroups_detected_at_runtime);
81 // ----------------------------------------------------------------------------
89 unsigned long long Read;
90 unsigned long long Write;
92 unsigned long long Sync;
93 unsigned long long Async;
94 unsigned long long Total;
98 // https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
106 unsigned long long cache;
107 unsigned long long rss;
108 unsigned long long rss_huge;
109 unsigned long long mapped_file;
110 unsigned long long writeback;
111 unsigned long long dirty;
112 unsigned long long swap;
113 unsigned long long pgpgin;
114 unsigned long long pgpgout;
115 unsigned long long pgfault;
116 unsigned long long pgmajfault;
118 unsigned long long inactive_anon;
119 unsigned long long active_anon;
120 unsigned long long inactive_file;
121 unsigned long long active_file;
122 unsigned long long unevictable;
123 unsigned long long hierarchical_memory_limit;
124 unsigned long long total_cache;
125 unsigned long long total_rss;
126 unsigned long long total_rss_huge;
127 unsigned long long total_mapped_file;
128 unsigned long long total_writeback;
129 unsigned long long total_dirty;
130 unsigned long long total_swap;
131 unsigned long long total_pgpgin;
132 unsigned long long total_pgpgout;
133 unsigned long long total_pgfault;
134 unsigned long long total_pgmajfault;
135 unsigned long long total_inactive_anon;
136 unsigned long long total_active_anon;
137 unsigned long long total_inactive_file;
138 unsigned long long total_active_file;
139 unsigned long long total_unevictable;
143 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
144 struct cpuacct_stat {
149 unsigned long long user;
150 unsigned long long system;
153 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
154 struct cpuacct_usage {
160 unsigned long long *cpu_percpu;
164 char available; // found in the filesystem
165 char last_available; // found in the filesystem the last time
166 char enabled; // enabled in the config
176 struct cpuacct_stat cpuacct_stat;
177 struct cpuacct_usage cpuacct_usage;
179 struct memory memory;
181 struct blkio io_service_bytes; // bytes
182 struct blkio io_serviced; // operations
184 struct blkio throttle_io_service_bytes; // bytes
185 struct blkio throttle_io_serviced; // operations
187 struct blkio io_merged; // operations
188 struct blkio io_queued; // operations
192 } *cgroup_root = NULL;
194 // ----------------------------------------------------------------------------
195 // read values from /sys
197 void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) {
198 static procfile *ff = NULL;
200 static uint32_t user_hash = 0;
201 static uint32_t system_hash = 0;
203 if(unlikely(user_hash == 0)) {
204 user_hash = simple_hash("user");
205 system_hash = simple_hash("system");
210 ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
213 ff = procfile_readall(ff);
216 unsigned long i, lines = procfile_lines(ff);
219 error("File '%s' should have 1+ lines.", cp->filename);
223 for(i = 0; i < lines ; i++) {
224 char *s = procfile_lineword(ff, i, 0);
225 uint32_t hash = simple_hash(s);
227 if(hash == user_hash && !strcmp(s, "user"))
228 cp->user = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
230 else if(hash == system_hash && !strcmp(s, "system"))
231 cp->system = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
236 // fprintf(stderr, "READ '%s': user: %llu, system: %llu\n", cp->filename, cp->user, cp->system);
240 void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) {
241 static procfile *ff = NULL;
245 ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT);
248 ff = procfile_readall(ff);
251 if(procfile_lines(ff) < 1) {
252 error("File '%s' should have 1+ lines but has %u.", ca->filename, procfile_lines(ff));
256 unsigned long i = procfile_linewords(ff, 0);
259 // we may have 1 more CPU reported
261 char *s = procfile_lineword(ff, 0, i - 1);
267 freez(ca->cpu_percpu);
268 ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i);
269 ca->cpus = (unsigned int)i;
272 for(i = 0; i < ca->cpus ;i++) {
273 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
274 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
281 void cgroup_read_blkio(struct blkio *io) {
282 static procfile *ff = NULL;
284 static uint32_t Read_hash = 0;
285 static uint32_t Write_hash = 0;
287 static uint32_t Sync_hash = 0;
288 static uint32_t Async_hash = 0;
289 static uint32_t Total_hash = 0;
292 if(unlikely(Read_hash == 0)) {
293 Read_hash = simple_hash("Read");
294 Write_hash = simple_hash("Write");
296 Sync_hash = simple_hash("Sync");
297 Async_hash = simple_hash("Async");
298 Total_hash = simple_hash("Total");
304 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
307 ff = procfile_readall(ff);
310 unsigned long i, lines = procfile_lines(ff);
313 error("File '%s' should have 1+ lines.", io->filename);
325 for(i = 0; i < lines ; i++) {
326 char *s = procfile_lineword(ff, i, 1);
327 uint32_t hash = simple_hash(s);
329 if(hash == Read_hash && !strcmp(s, "Read"))
330 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
332 else if(hash == Write_hash && !strcmp(s, "Write"))
333 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
336 else if(hash == Sync_hash && !strcmp(s, "Sync"))
337 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
339 else if(hash == Async_hash && !strcmp(s, "Async"))
340 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
342 else if(hash == Total_hash && !strcmp(s, "Total"))
343 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
348 // fprintf(stderr, "READ '%s': Read: %llu, Write: %llu, Sync: %llu, Async: %llu, Total: %llu\n", io->filename, io->Read, io->Write, io->Sync, io->Async, io->Total);
352 void cgroup_read_memory(struct memory *mem) {
353 static procfile *ff = NULL;
355 static uint32_t cache_hash = 0;
356 static uint32_t rss_hash = 0;
357 static uint32_t rss_huge_hash = 0;
358 static uint32_t mapped_file_hash = 0;
359 static uint32_t writeback_hash = 0;
360 static uint32_t dirty_hash = 0;
361 static uint32_t swap_hash = 0;
362 static uint32_t pgpgin_hash = 0;
363 static uint32_t pgpgout_hash = 0;
364 static uint32_t pgfault_hash = 0;
365 static uint32_t pgmajfault_hash = 0;
367 static uint32_t inactive_anon_hash = 0;
368 static uint32_t active_anon_hash = 0;
369 static uint32_t inactive_file_hash = 0;
370 static uint32_t active_file_hash = 0;
371 static uint32_t unevictable_hash = 0;
372 static uint32_t hierarchical_memory_limit_hash = 0;
373 static uint32_t total_cache_hash = 0;
374 static uint32_t total_rss_hash = 0;
375 static uint32_t total_rss_huge_hash = 0;
376 static uint32_t total_mapped_file_hash = 0;
377 static uint32_t total_writeback_hash = 0;
378 static uint32_t total_dirty_hash = 0;
379 static uint32_t total_swap_hash = 0;
380 static uint32_t total_pgpgin_hash = 0;
381 static uint32_t total_pgpgout_hash = 0;
382 static uint32_t total_pgfault_hash = 0;
383 static uint32_t total_pgmajfault_hash = 0;
384 static uint32_t total_inactive_anon_hash = 0;
385 static uint32_t total_active_anon_hash = 0;
386 static uint32_t total_inactive_file_hash = 0;
387 static uint32_t total_active_file_hash = 0;
388 static uint32_t total_unevictable_hash = 0;
390 if(unlikely(cache_hash == 0)) {
391 cache_hash = simple_hash("cache");
392 rss_hash = simple_hash("rss");
393 rss_huge_hash = simple_hash("rss_huge");
394 mapped_file_hash = simple_hash("mapped_file");
395 writeback_hash = simple_hash("writeback");
396 dirty_hash = simple_hash("dirty");
397 swap_hash = simple_hash("swap");
398 pgpgin_hash = simple_hash("pgpgin");
399 pgpgout_hash = simple_hash("pgpgout");
400 pgfault_hash = simple_hash("pgfault");
401 pgmajfault_hash = simple_hash("pgmajfault");
403 inactive_anon_hash = simple_hash("inactive_anon");
404 active_anon_hash = simple_hash("active_anon");
405 inactive_file_hash = simple_hash("inactive_file");
406 active_file_hash = simple_hash("active_file");
407 unevictable_hash = simple_hash("unevictable");
408 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
409 total_cache_hash = simple_hash("total_cache");
410 total_rss_hash = simple_hash("total_rss");
411 total_rss_huge_hash = simple_hash("total_rss_huge");
412 total_mapped_file_hash = simple_hash("total_mapped_file");
413 total_writeback_hash = simple_hash("total_writeback");
414 total_dirty_hash = simple_hash("total_dirty");
415 total_swap_hash = simple_hash("total_swap");
416 total_pgpgin_hash = simple_hash("total_pgpgin");
417 total_pgpgout_hash = simple_hash("total_pgpgout");
418 total_pgfault_hash = simple_hash("total_pgfault");
419 total_pgmajfault_hash = simple_hash("total_pgmajfault");
420 total_inactive_anon_hash = simple_hash("total_inactive_anon");
421 total_active_anon_hash = simple_hash("total_active_anon");
422 total_inactive_file_hash = simple_hash("total_inactive_file");
423 total_active_file_hash = simple_hash("total_active_file");
424 total_unevictable_hash = simple_hash("total_unevictable");
430 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
433 ff = procfile_readall(ff);
436 unsigned long i, lines = procfile_lines(ff);
439 error("File '%s' should have 1+ lines.", mem->filename);
443 for(i = 0; i < lines ; i++) {
444 char *s = procfile_lineword(ff, i, 0);
445 uint32_t hash = simple_hash(s);
447 if(hash == cache_hash && !strcmp(s, "cache"))
448 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
450 else if(hash == rss_hash && !strcmp(s, "rss"))
451 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
453 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
454 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
456 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
457 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
459 else if(hash == writeback_hash && !strcmp(s, "writeback"))
460 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
462 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
463 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
464 mem->has_dirty_swap = 1;
467 else if(hash == swap_hash && !strcmp(s, "swap")) {
468 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
469 mem->has_dirty_swap = 1;
472 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
473 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
475 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
476 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
478 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
479 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
481 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
482 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
485 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
486 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
488 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
489 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
491 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
492 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
494 else if(hash == active_file_hash && !strcmp(s, "active_file"))
495 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
497 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
498 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
500 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
501 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
503 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
504 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
506 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
507 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
509 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
510 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
512 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
513 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
515 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
516 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
518 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
519 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
521 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
522 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
524 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
525 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
527 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
528 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
530 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
531 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
533 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
534 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
536 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
537 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
539 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
540 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
542 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
543 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
545 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
546 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
548 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
549 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
553 // fprintf(stderr, "READ: '%s', cache: %llu, rss: %llu, rss_huge: %llu, mapped_file: %llu, writeback: %llu, dirty: %llu, swap: %llu, pgpgin: %llu, pgpgout: %llu, pgfault: %llu, pgmajfault: %llu, inactive_anon: %llu, active_anon: %llu, inactive_file: %llu, active_file: %llu, unevictable: %llu, hierarchical_memory_limit: %llu, total_cache: %llu, total_rss: %llu, total_rss_huge: %llu, total_mapped_file: %llu, total_writeback: %llu, total_dirty: %llu, total_swap: %llu, total_pgpgin: %llu, total_pgpgout: %llu, total_pgfault: %llu, total_pgmajfault: %llu, total_inactive_anon: %llu, total_active_anon: %llu, total_inactive_file: %llu, total_active_file: %llu, total_unevictable: %llu\n", mem->filename, mem->cache, mem->rss, mem->rss_huge, mem->mapped_file, mem->writeback, mem->dirty, mem->swap, mem->pgpgin, mem->pgpgout, mem->pgfault, mem->pgmajfault, mem->inactive_anon, mem->active_anon, mem->inactive_file, mem->active_file, mem->unevictable, mem->hierarchical_memory_limit, mem->total_cache, mem->total_rss, mem->total_rss_huge, mem->total_mapped_file, mem->total_writeback, mem->total_dirty, mem->total_swap, mem->total_pgpgin, mem->total_pgpgout, mem->total_pgfault, mem->total_pgmajfault, mem->total_inactive_anon, mem->total_active_anon, mem->total_inactive_file, mem->total_active_file, mem->total_unevictable);
559 void cgroup_read(struct cgroup *cg) {
560 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
562 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
563 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
564 cgroup_read_memory(&cg->memory);
565 cgroup_read_blkio(&cg->io_service_bytes);
566 cgroup_read_blkio(&cg->io_serviced);
567 cgroup_read_blkio(&cg->throttle_io_service_bytes);
568 cgroup_read_blkio(&cg->throttle_io_serviced);
569 cgroup_read_blkio(&cg->io_merged);
570 cgroup_read_blkio(&cg->io_queued);
573 void read_all_cgroups(struct cgroup *root) {
574 debug(D_CGROUP, "reading metrics for all cgroups");
578 for(cg = root; cg ; cg = cg->next)
579 if(cg->enabled && cg->available)
583 // ----------------------------------------------------------------------------
584 // add/remove/find cgroup objects
586 #define CGROUP_CHARTID_LINE_MAX 1024
588 void cgroup_get_chart_id(struct cgroup *cg) {
589 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
592 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
594 snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
595 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
597 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
598 FILE *fp = mypopen(buffer, &cgroup_pid);
600 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
603 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
604 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
605 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
606 mypclose(fp, cgroup_pid);
607 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
609 if(s && *s && *s != '\n') {
610 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
614 freez(cg->chart_title);
615 cg->chart_title = strdupz(s);
616 netdata_fix_chart_name(cg->chart_title);
619 cg->chart_id = strdupz(s);
620 netdata_fix_chart_id(cg->chart_id);
621 cg->hash_chart = simple_hash(cg->chart_id);
623 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
625 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
628 struct cgroup *cgroup_add(const char *id) {
629 debug(D_CGROUP, "adding cgroup '%s'", id);
631 if(cgroup_root_count >= cgroup_root_max) {
632 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
636 int def = cgroup_enable_new_cgroups_detected_at_runtime;
637 const char *chart_id = id;
641 // disable by default the root cgroup
643 debug(D_CGROUP, "cgroup '%s' is the root container (by default %s)", id, (def)?"enabled":"disabled");
646 if(*chart_id == '/') chart_id++;
648 size_t len = strlen(chart_id);
650 // disable by default the parent cgroup
651 // for known cgroup managers
652 if(!strcmp(chart_id, "lxc") ||
653 !strcmp(chart_id, "docker") ||
654 !strcmp(chart_id, "libvirt") ||
655 !strcmp(chart_id, "qemu") ||
656 !strcmp(chart_id, "systemd") ||
657 !strcmp(chart_id, "system.slice") ||
658 !strcmp(chart_id, "machine.slice") ||
659 !strcmp(chart_id, "init.scope") ||
660 !strcmp(chart_id, "user") ||
661 !strcmp(chart_id, "system") ||
662 !strcmp(chart_id, "machine") ||
664 (len > 6 && !strncmp(chart_id, "user/", 6)) ||
665 (len > 11 && !strncmp(chart_id, "user.slice/", 11)) ||
667 (len > 5 && !strncmp(&chart_id[len - 5], ".user", 5)) ||
668 (len > 5 && !strncmp(&chart_id[len - 5], ".swap", 5)) ||
669 (len > 6 && !strncmp(&chart_id[len - 6], ".slice", 6)) ||
670 (len > 6 && !strncmp(&chart_id[len - 6], ".mount", 6)) ||
671 (len > 8 && !strncmp(&chart_id[len - 8], ".session", 8)) ||
672 (len > 8 && !strncmp(&chart_id[len - 8], ".service", 8)) ||
673 (len > 10 && !strncmp(&chart_id[len - 10], ".partition", 10))
676 debug(D_CGROUP, "cgroup '%s' is %s (by default)", id, (def)?"enabled":"disabled");
680 struct cgroup *cg = callocz(1, sizeof(struct cgroup));
682 cg->id = strdupz(id);
683 cg->hash = simple_hash(cg->id);
685 cg->chart_id = strdupz(chart_id);
686 netdata_fix_chart_id(cg->chart_id);
687 cg->hash_chart = simple_hash(cg->chart_id);
689 cg->chart_title = strdupz(chart_id);
696 for(e = cgroup_root; e->next ;e = e->next) ;
702 // fix the name by calling the external script
703 cgroup_get_chart_id(cg);
705 debug(D_CGROUP, "adding cgroup '%s' with chart id '%s'", id, chart_id);
707 char option[FILENAME_MAX + 1];
708 snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
709 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
713 for (t = cgroup_root; t; t = t->next) {
714 if (t != cg && t->enabled && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) {
715 if (!strncmp(t->chart_id, "/system.slice/", 14) && !strncmp(cg->chart_id, "/init.scope/system.slice/", 25)) {
716 error("Control group with chart id '%s' already exists with id '%s' and is enabled. Swapping them by enabling cgroup with id '%s' and disabling cgroup with id '%s'.",
717 cg->chart_id, t->id, cg->id, t->id);
720 if(t->last_available) {
721 error("Control group with chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.",
722 cg->chart_id, t->id, cg->id);
726 error("Control group with chart id '%s' already exists with id '%s' but is not available. Enabling cgroup with id '%s'.",
727 cg->chart_id, t->id, cg->id);
737 debug(D_CGROUP, "Added cgroup '%s' with chart id '%s' and title '%s' as %s (default was %s)", cg->id, cg->chart_id, cg->chart_title, (cg->enabled)?"enabled":"disabled", (def)?"enabled":"disabled");
742 void cgroup_free(struct cgroup *cg) {
743 debug(D_CGROUP, "Removing cgroup '%s' with chart id '%s' (was %s and %s)", cg->id, cg->chart_id, (cg->enabled)?"enabled":"disabled", (cg->available)?"available":"not available");
745 freez(cg->cpuacct_usage.cpu_percpu);
747 freez(cg->cpuacct_stat.filename);
748 freez(cg->cpuacct_usage.filename);
749 freez(cg->memory.filename);
750 freez(cg->io_service_bytes.filename);
751 freez(cg->io_serviced.filename);
752 freez(cg->throttle_io_service_bytes.filename);
753 freez(cg->throttle_io_serviced.filename);
754 freez(cg->io_merged.filename);
755 freez(cg->io_queued.filename);
759 freez(cg->chart_title);
765 // find if a given cgroup exists
766 struct cgroup *cgroup_find(const char *id) {
767 debug(D_CGROUP, "searching for cgroup '%s'", id);
769 uint32_t hash = simple_hash(id);
772 for(cg = cgroup_root; cg ; cg = cg->next) {
773 if(hash == cg->hash && strcmp(id, cg->id) == 0)
777 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
781 // ----------------------------------------------------------------------------
782 // detect running cgroups
784 // callback for find_file_in_subdirs()
785 void found_subdir_in_dir(const char *dir) {
786 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
788 struct cgroup *cg = cgroup_find(dir);
790 if(*dir && cgroup_max_depth > 0) {
794 for(s = dir; *s ;s++)
795 if(unlikely(*s == '/'))
798 if(depth > cgroup_max_depth) {
799 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
803 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
804 cg = cgroup_add(dir);
807 if(cg) cg->available = 1;
810 int find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
811 debug(D_CGROUP, "searching for directories in '%s'", base);
815 if(!this) this = base;
816 size_t dirlen = strlen(this), baselen = strlen(base);
817 const char *relative_path = &this[baselen];
819 DIR *dir = opendir(this);
821 error("Cannot read cgroups directory '%s'", base);
826 callback(relative_path);
828 struct dirent *de = NULL;
829 while((de = readdir(dir))) {
830 if(de->d_type == DT_DIR
832 (de->d_name[0] == '.' && de->d_name[1] == '\0')
833 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
837 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
839 if(de->d_type == DT_DIR) {
841 const char *r = relative_path;
842 if(*r == '\0') r = "/";
843 else if (*r == '/') r++;
845 // we check for this option here
846 // so that the config will not have settings
847 // for leaf directories
848 char option[FILENAME_MAX + 1];
849 snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r);
850 option[FILENAME_MAX] = '\0';
851 enabled = config_get_boolean("plugin:cgroups", option, 1);
855 char *s = mallocz(dirlen + strlen(de->d_name) + 2);
858 strcat(s, de->d_name);
859 int ret2 = find_dir_in_subdirs(base, s, callback);
860 if(ret2 > 0) ret += ret2;
870 void mark_all_cgroups_as_not_available() {
871 debug(D_CGROUP, "marking all cgroups as not available");
875 // mark all as not available
876 for(cg = cgroup_root; cg ; cg = cg->next) {
877 cg->last_available = cg->available;
882 void cleanup_all_cgroups() {
883 struct cgroup *cg = cgroup_root, *last = NULL;
889 cgroup_root = cg->next;
891 last->next = cg->next;
907 void find_all_cgroups() {
908 debug(D_CGROUP, "searching for cgroups");
910 mark_all_cgroups_as_not_available();
912 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage) {
913 if (find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir) == -1) {
914 cgroup_enable_cpuacct_stat = cgroup_enable_cpuacct_usage = 0;
915 error("disabled cgroup cpu statistics.");
919 if(cgroup_enable_blkio) {
920 if (find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir) == -1) {
921 cgroup_enable_blkio = 0;
922 error("disabled cgroup blkio statistics.");
926 if(cgroup_enable_memory) {
927 if(find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir) == -1) {
928 cgroup_enable_memory = 0;
929 error("disabled cgroup memory statistics.");
933 if(cgroup_enable_devices) {
934 if(find_dir_in_subdirs(cgroup_devices_base, NULL, found_subdir_in_dir) == -1) {
935 cgroup_enable_devices = 0;
936 error("disabled cgroup devices statistics.");
940 // remove any non-existing cgroups
941 cleanup_all_cgroups();
945 for(cg = cgroup_root; cg ; cg = cg->next) {
946 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
948 if(unlikely(!cg->available))
951 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
953 // check for newly added cgroups
954 // and update the filenames they read
955 char filename[FILENAME_MAX + 1];
956 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
957 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
958 if(stat(filename, &buf) != -1) {
959 cg->cpuacct_stat.filename = strdupz(filename);
960 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
962 else debug(D_CGROUP, "cpuacct.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
964 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
965 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
966 if(stat(filename, &buf) != -1) {
967 cg->cpuacct_usage.filename = strdupz(filename);
968 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
970 else debug(D_CGROUP, "cpuacct.usage_percpu file for cgroup '%s': '%s' does not exist.", cg->id, filename);
972 if(cgroup_enable_memory && !cg->memory.filename) {
973 snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
974 if(stat(filename, &buf) != -1) {
975 cg->memory.filename = strdupz(filename);
976 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
978 else debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
980 if(cgroup_enable_blkio) {
981 if(!cg->io_service_bytes.filename) {
982 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
983 if(stat(filename, &buf) != -1) {
984 cg->io_service_bytes.filename = strdupz(filename);
985 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
987 else debug(D_CGROUP, "io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
989 if(!cg->io_serviced.filename) {
990 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
991 if(stat(filename, &buf) != -1) {
992 cg->io_serviced.filename = strdupz(filename);
993 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
995 else debug(D_CGROUP, "io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
997 if(!cg->throttle_io_service_bytes.filename) {
998 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
999 if(stat(filename, &buf) != -1) {
1000 cg->throttle_io_service_bytes.filename = strdupz(filename);
1001 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
1003 else debug(D_CGROUP, "throttle_io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1005 if(!cg->throttle_io_serviced.filename) {
1006 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
1007 if(stat(filename, &buf) != -1) {
1008 cg->throttle_io_serviced.filename = strdupz(filename);
1009 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
1011 else debug(D_CGROUP, "throttle_io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1013 if(!cg->io_merged.filename) {
1014 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
1015 if(stat(filename, &buf) != -1) {
1016 cg->io_merged.filename = strdupz(filename);
1017 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
1019 else debug(D_CGROUP, "io_merged file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1021 if(!cg->io_queued.filename) {
1022 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
1023 if(stat(filename, &buf) != -1) {
1024 cg->io_queued.filename = strdupz(filename);
1025 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
1027 else debug(D_CGROUP, "io_queued file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1032 debug(D_CGROUP, "done searching for cgroups");
1036 // ----------------------------------------------------------------------------
1039 #define CHART_TITLE_MAX 300
1041 void update_cgroup_charts(int update_every) {
1042 debug(D_CGROUP, "updating cgroups charts");
1044 char type[RRD_ID_LENGTH_MAX + 1];
1045 char title[CHART_TITLE_MAX + 1];
1050 for(cg = cgroup_root; cg ; cg = cg->next) {
1051 if(!cg->available || !cg->enabled)
1054 if(cg->id[0] == '\0')
1055 strcpy(type, "cgroup_root");
1056 else if(cg->id[0] == '/')
1057 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1059 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1061 netdata_fix_chart_id(type);
1063 if(cg->cpuacct_stat.updated) {
1064 st = rrdset_find_bytype(type, "cpu");
1066 snprintfz(title, CHART_TITLE_MAX, "CPU Usage for cgroup %s", cg->chart_title);
1067 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
1069 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
1070 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
1072 else rrdset_next(st);
1074 rrddim_set(st, "user", cg->cpuacct_stat.user);
1075 rrddim_set(st, "system", cg->cpuacct_stat.system);
1079 if(cg->cpuacct_usage.updated) {
1080 char id[RRD_ID_LENGTH_MAX + 1];
1083 st = rrdset_find_bytype(type, "cpu_per_core");
1085 snprintfz(title, CHART_TITLE_MAX, "CPU Usage Per Core for cgroup %s", cg->chart_title);
1086 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
1088 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1089 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1090 rrddim_add(st, id, NULL, 100, 1000000000, RRDDIM_INCREMENTAL);
1093 else rrdset_next(st);
1095 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1096 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1097 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1102 if(cg->memory.updated) {
1103 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1104 st = rrdset_find_bytype(type, "mem");
1106 snprintfz(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1107 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40200, update_every,
1108 RRDSET_TYPE_STACKED);
1110 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1111 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1112 if(cg->memory.has_dirty_swap)
1113 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1114 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1115 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1117 else rrdset_next(st);
1119 rrddim_set(st, "cache", cg->memory.cache);
1120 rrddim_set(st, "rss", cg->memory.rss);
1121 if(cg->memory.has_dirty_swap)
1122 rrddim_set(st, "swap", cg->memory.swap);
1123 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1124 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1128 st = rrdset_find_bytype(type, "writeback");
1130 snprintfz(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1131 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1132 update_every, RRDSET_TYPE_AREA);
1134 if(cg->memory.has_dirty_swap)
1135 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1136 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1138 else rrdset_next(st);
1140 if(cg->memory.has_dirty_swap)
1141 rrddim_set(st, "dirty", cg->memory.dirty);
1142 rrddim_set(st, "writeback", cg->memory.writeback);
1145 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1146 st = rrdset_find_bytype(type, "mem_activity");
1148 snprintfz(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1149 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1150 40400, update_every, RRDSET_TYPE_LINE);
1152 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1153 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1155 else rrdset_next(st);
1157 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1158 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1162 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1163 st = rrdset_find_bytype(type, "pgfaults");
1165 snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1166 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1167 update_every, RRDSET_TYPE_LINE);
1169 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1170 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1172 else rrdset_next(st);
1174 rrddim_set(st, "pgfault", cg->memory.pgfault);
1175 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1180 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1181 st = rrdset_find_bytype(type, "io");
1183 snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1184 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1185 update_every, RRDSET_TYPE_LINE);
1187 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1188 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1190 else rrdset_next(st);
1192 rrddim_set(st, "read", cg->io_service_bytes.Read);
1193 rrddim_set(st, "write", cg->io_service_bytes.Write);
1197 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1198 st = rrdset_find_bytype(type, "serviced_ops");
1200 snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1201 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1202 update_every, RRDSET_TYPE_LINE);
1204 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1205 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1207 else rrdset_next(st);
1209 rrddim_set(st, "read", cg->io_serviced.Read);
1210 rrddim_set(st, "write", cg->io_serviced.Write);
1214 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1215 st = rrdset_find_bytype(type, "io");
1217 snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1218 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1219 update_every, RRDSET_TYPE_LINE);
1221 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1222 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1224 else rrdset_next(st);
1226 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1227 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1232 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1233 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1235 snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1236 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1237 update_every, RRDSET_TYPE_LINE);
1239 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1240 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1242 else rrdset_next(st);
1244 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1245 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1249 if(cg->io_queued.updated) {
1250 st = rrdset_find_bytype(type, "queued_ops");
1252 snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1253 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1254 update_every, RRDSET_TYPE_LINE);
1256 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1257 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1259 else rrdset_next(st);
1261 rrddim_set(st, "read", cg->io_queued.Read);
1262 rrddim_set(st, "write", cg->io_queued.Write);
1266 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1267 st = rrdset_find_bytype(type, "merged_ops");
1269 snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1270 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1271 update_every, RRDSET_TYPE_LINE);
1273 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1274 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1276 else rrdset_next(st);
1278 rrddim_set(st, "read", cg->io_merged.Read);
1279 rrddim_set(st, "write", cg->io_merged.Write);
1284 debug(D_CGROUP, "done updating cgroups charts");
1287 // ----------------------------------------------------------------------------
1290 int do_sys_fs_cgroup(int update_every, unsigned long long dt) {
1293 static int cgroup_global_config_read = 0;
1294 static time_t last_run = 0;
1295 time_t now = time(NULL);
1297 if(unlikely(!cgroup_global_config_read)) {
1298 read_cgroup_plugin_configuration();
1299 cgroup_global_config_read = 1;
1302 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1307 read_all_cgroups(cgroup_root);
1308 update_cgroup_charts(update_every);
1313 void *cgroups_main(void *ptr)
1317 info("CGROUP Plugin thread created with task id %d", gettid());
1319 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1320 error("Cannot set pthread cancel type to DEFERRED.");
1322 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1323 error("Cannot set pthread cancel state to ENABLE.");
1325 struct rusage thread;
1327 // when ZERO, attempt to do it
1328 int vdo_sys_fs_cgroup = 0;
1329 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1331 // keep track of the time each module was called
1332 unsigned long long sutime_sys_fs_cgroup = 0ULL;
1334 // the next time we will run - aligned properly
1335 unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
1336 unsigned long long sunow;
1338 RRDSET *stcpu_thread = NULL;
1341 if(unlikely(netdata_exit)) break;
1343 // delay until it is our time to run
1344 while((sunow = time_usec()) < sunext)
1345 sleep_usec(sunext - sunow);
1347 // find the next time we need to run
1348 while(time_usec() > sunext)
1349 sunext += rrd_update_every * 1000000ULL;
1351 if(unlikely(netdata_exit)) break;
1353 // BEGIN -- the job to be done
1355 if(!vdo_sys_fs_cgroup) {
1356 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1357 sunow = time_usec();
1358 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1359 sutime_sys_fs_cgroup = sunow;
1361 if(unlikely(netdata_exit)) break;
1363 // END -- the job is done
1365 // --------------------------------------------------------------------
1367 if(!vdo_cpu_netdata) {
1368 getrusage(RUSAGE_THREAD, &thread);
1370 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1372 stcpu_thread = rrdset_create("netdata", "plugin_cgroups_cpu", NULL, "proc.internal", NULL, "NetData CGroups Plugin CPU usage", "milliseconds/s", 132000, rrd_update_every, RRDSET_TYPE_STACKED);
1374 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1375 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1377 else rrdset_next(stcpu_thread);
1379 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1380 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1381 rrdset_done(stcpu_thread);