13 #include "appconfig.h"
19 #include "proc_self_mountinfo.h"
21 // ----------------------------------------------------------------------------
24 static int cgroup_enable_cpuacct_stat = CONFIG_ONDEMAND_ONDEMAND;
25 static int cgroup_enable_cpuacct_usage = CONFIG_ONDEMAND_ONDEMAND;
26 static int cgroup_enable_memory = CONFIG_ONDEMAND_ONDEMAND;
27 static int cgroup_enable_blkio = CONFIG_ONDEMAND_ONDEMAND;
28 static int cgroup_enable_new_cgroups_detected_at_runtime = 1;
29 static int cgroup_check_for_new_every = 10;
30 static char *cgroup_cpuacct_base = NULL;
31 static char *cgroup_blkio_base = NULL;
32 static char *cgroup_memory_base = NULL;
34 static int cgroup_root_count = 0;
35 static int cgroup_root_max = 50;
36 static int cgroup_max_depth = 0;
38 void read_cgroup_plugin_configuration() {
39 cgroup_check_for_new_every = config_get_number("plugin:cgroups", "check for new cgroups every", cgroup_check_for_new_every);
41 cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat", cgroup_enable_cpuacct_stat);
42 cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage", cgroup_enable_cpuacct_usage);
43 cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
44 cgroup_enable_blkio = config_get_boolean_ondemand("plugin:cgroups", "enable blkio", cgroup_enable_blkio);
46 char filename[FILENAME_MAX + 1], *s;
47 struct mountinfo *mi, *root = mountinfo_read();
49 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
50 if(!mi) s = "/sys/fs/cgroup/cpuacct";
51 else s = mi->mount_point;
52 snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
53 cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
55 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
56 if(!mi) s = "/sys/fs/cgroup/blkio";
57 else s = mi->mount_point;
58 snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
59 cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
61 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
62 if(!mi) s = "/sys/fs/cgroup/memory";
63 else s = mi->mount_point;
64 snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
65 cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
67 cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
68 cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
70 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);
75 // ----------------------------------------------------------------------------
83 unsigned long long Read;
84 unsigned long long Write;
86 unsigned long long Sync;
87 unsigned long long Async;
88 unsigned long long Total;
92 // https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
100 unsigned long long cache;
101 unsigned long long rss;
102 unsigned long long rss_huge;
103 unsigned long long mapped_file;
104 unsigned long long writeback;
105 unsigned long long dirty;
106 unsigned long long swap;
107 unsigned long long pgpgin;
108 unsigned long long pgpgout;
109 unsigned long long pgfault;
110 unsigned long long pgmajfault;
112 unsigned long long inactive_anon;
113 unsigned long long active_anon;
114 unsigned long long inactive_file;
115 unsigned long long active_file;
116 unsigned long long unevictable;
117 unsigned long long hierarchical_memory_limit;
118 unsigned long long total_cache;
119 unsigned long long total_rss;
120 unsigned long long total_rss_huge;
121 unsigned long long total_mapped_file;
122 unsigned long long total_writeback;
123 unsigned long long total_dirty;
124 unsigned long long total_swap;
125 unsigned long long total_pgpgin;
126 unsigned long long total_pgpgout;
127 unsigned long long total_pgfault;
128 unsigned long long total_pgmajfault;
129 unsigned long long total_inactive_anon;
130 unsigned long long total_active_anon;
131 unsigned long long total_inactive_file;
132 unsigned long long total_active_file;
133 unsigned long long total_unevictable;
137 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
138 struct cpuacct_stat {
143 unsigned long long user;
144 unsigned long long system;
147 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
148 struct cpuacct_usage {
154 unsigned long long *cpu_percpu;
158 int available; // found in the filesystem
159 int enabled; // enabled in the config
167 struct cpuacct_stat cpuacct_stat;
168 struct cpuacct_usage cpuacct_usage;
170 struct memory memory;
172 struct blkio io_service_bytes; // bytes
173 struct blkio io_serviced; // operations
175 struct blkio throttle_io_service_bytes; // bytes
176 struct blkio throttle_io_serviced; // operations
178 struct blkio io_merged; // operations
179 struct blkio io_queued; // operations
183 } *cgroup_root = NULL;
185 // ----------------------------------------------------------------------------
186 // read values from /sys
188 void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) {
189 static procfile *ff = NULL;
191 static uint32_t user_hash = 0;
192 static uint32_t system_hash = 0;
194 if(unlikely(user_hash == 0)) {
195 user_hash = simple_hash("user");
196 system_hash = simple_hash("system");
201 ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
204 ff = procfile_readall(ff);
207 unsigned long i, lines = procfile_lines(ff);
210 error("File '%s' should have 1+ lines.", cp->filename);
214 for(i = 0; i < lines ; i++) {
215 char *s = procfile_lineword(ff, i, 0);
216 uint32_t hash = simple_hash(s);
218 if(hash == user_hash && !strcmp(s, "user"))
219 cp->user = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
221 else if(hash == system_hash && !strcmp(s, "system"))
222 cp->system = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
227 // fprintf(stderr, "READ '%s': user: %llu, system: %llu\n", cp->filename, cp->user, cp->system);
231 void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) {
232 static procfile *ff = NULL;
236 ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT);
239 ff = procfile_readall(ff);
242 if(procfile_lines(ff) < 1) {
243 error("File '%s' should have 1+ lines but has %d.", ca->filename, procfile_lines(ff));
247 unsigned long i = procfile_linewords(ff, 0);
250 // we may have 1 more CPU reported
252 char *s = procfile_lineword(ff, 0, i - 1);
258 free(ca->cpu_percpu);
260 ca->cpu_percpu = malloc(sizeof(unsigned long long) * i);
262 fatal("Cannot allocate memory (%z bytes)", sizeof(unsigned long long) * i);
267 for(i = 0; i < ca->cpus ;i++) {
268 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
269 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
276 void cgroup_read_blkio(struct blkio *io) {
277 static procfile *ff = NULL;
279 static uint32_t Read_hash = 0;
280 static uint32_t Write_hash = 0;
282 static uint32_t Sync_hash = 0;
283 static uint32_t Async_hash = 0;
284 static uint32_t Total_hash = 0;
287 if(unlikely(Read_hash == 0)) {
288 Read_hash = simple_hash("Read");
289 Write_hash = simple_hash("Write");
291 Sync_hash = simple_hash("Sync");
292 Async_hash = simple_hash("Async");
293 Total_hash = simple_hash("Total");
299 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
302 ff = procfile_readall(ff);
305 unsigned long i, lines = procfile_lines(ff);
308 error("File '%s' should have 1+ lines.", io->filename);
320 for(i = 0; i < lines ; i++) {
321 char *s = procfile_lineword(ff, i, 1);
322 uint32_t hash = simple_hash(s);
324 if(hash == Read_hash && !strcmp(s, "Read"))
325 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
327 else if(hash == Write_hash && !strcmp(s, "Write"))
328 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
331 else if(hash == Sync_hash && !strcmp(s, "Sync"))
332 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
334 else if(hash == Async_hash && !strcmp(s, "Async"))
335 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
337 else if(hash == Total_hash && !strcmp(s, "Total"))
338 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
343 // 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);
347 void cgroup_read_memory(struct memory *mem) {
348 static procfile *ff = NULL;
350 static uint32_t cache_hash = 0;
351 static uint32_t rss_hash = 0;
352 static uint32_t rss_huge_hash = 0;
353 static uint32_t mapped_file_hash = 0;
354 static uint32_t writeback_hash = 0;
355 static uint32_t dirty_hash = 0;
356 static uint32_t swap_hash = 0;
357 static uint32_t pgpgin_hash = 0;
358 static uint32_t pgpgout_hash = 0;
359 static uint32_t pgfault_hash = 0;
360 static uint32_t pgmajfault_hash = 0;
362 static uint32_t inactive_anon_hash = 0;
363 static uint32_t active_anon_hash = 0;
364 static uint32_t inactive_file_hash = 0;
365 static uint32_t active_file_hash = 0;
366 static uint32_t unevictable_hash = 0;
367 static uint32_t hierarchical_memory_limit_hash = 0;
368 static uint32_t total_cache_hash = 0;
369 static uint32_t total_rss_hash = 0;
370 static uint32_t total_rss_huge_hash = 0;
371 static uint32_t total_mapped_file_hash = 0;
372 static uint32_t total_writeback_hash = 0;
373 static uint32_t total_dirty_hash = 0;
374 static uint32_t total_swap_hash = 0;
375 static uint32_t total_pgpgin_hash = 0;
376 static uint32_t total_pgpgout_hash = 0;
377 static uint32_t total_pgfault_hash = 0;
378 static uint32_t total_pgmajfault_hash = 0;
379 static uint32_t total_inactive_anon_hash = 0;
380 static uint32_t total_active_anon_hash = 0;
381 static uint32_t total_inactive_file_hash = 0;
382 static uint32_t total_active_file_hash = 0;
383 static uint32_t total_unevictable_hash = 0;
385 if(unlikely(cache_hash == 0)) {
386 cache_hash = simple_hash("cache");
387 rss_hash = simple_hash("rss");
388 rss_huge_hash = simple_hash("rss_huge");
389 mapped_file_hash = simple_hash("mapped_file");
390 writeback_hash = simple_hash("writeback");
391 dirty_hash = simple_hash("dirty");
392 swap_hash = simple_hash("swap");
393 pgpgin_hash = simple_hash("pgpgin");
394 pgpgout_hash = simple_hash("pgpgout");
395 pgfault_hash = simple_hash("pgfault");
396 pgmajfault_hash = simple_hash("pgmajfault");
398 inactive_anon_hash = simple_hash("inactive_anon");
399 active_anon_hash = simple_hash("active_anon");
400 inactive_file_hash = simple_hash("inactive_file");
401 active_file_hash = simple_hash("active_file");
402 unevictable_hash = simple_hash("unevictable");
403 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
404 total_cache_hash = simple_hash("total_cache");
405 total_rss_hash = simple_hash("total_rss");
406 total_rss_huge_hash = simple_hash("total_rss_huge");
407 total_mapped_file_hash = simple_hash("total_mapped_file");
408 total_writeback_hash = simple_hash("total_writeback");
409 total_dirty_hash = simple_hash("total_dirty");
410 total_swap_hash = simple_hash("total_swap");
411 total_pgpgin_hash = simple_hash("total_pgpgin");
412 total_pgpgout_hash = simple_hash("total_pgpgout");
413 total_pgfault_hash = simple_hash("total_pgfault");
414 total_pgmajfault_hash = simple_hash("total_pgmajfault");
415 total_inactive_anon_hash = simple_hash("total_inactive_anon");
416 total_active_anon_hash = simple_hash("total_active_anon");
417 total_inactive_file_hash = simple_hash("total_inactive_file");
418 total_active_file_hash = simple_hash("total_active_file");
419 total_unevictable_hash = simple_hash("total_unevictable");
425 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
428 ff = procfile_readall(ff);
431 unsigned long i, lines = procfile_lines(ff);
434 error("File '%s' should have 1+ lines.", mem->filename);
438 for(i = 0; i < lines ; i++) {
439 char *s = procfile_lineword(ff, i, 0);
440 uint32_t hash = simple_hash(s);
442 if(hash == cache_hash && !strcmp(s, "cache"))
443 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
445 else if(hash == rss_hash && !strcmp(s, "rss"))
446 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
448 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
449 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
451 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
452 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
454 else if(hash == writeback_hash && !strcmp(s, "writeback"))
455 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
457 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
458 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
459 mem->has_dirty_swap = 1;
462 else if(hash == swap_hash && !strcmp(s, "swap")) {
463 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
464 mem->has_dirty_swap = 1;
467 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
468 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
470 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
471 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
473 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
474 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
476 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
477 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
480 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
481 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
483 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
484 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
486 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
487 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
489 else if(hash == active_file_hash && !strcmp(s, "active_file"))
490 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
492 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
493 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
495 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
496 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
498 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
499 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
501 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
502 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
504 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
505 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
507 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
508 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
510 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
511 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
513 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
514 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
516 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
517 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
519 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
520 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
522 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
523 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
525 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
526 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
528 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
529 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
531 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
532 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
534 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
535 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
537 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
538 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
540 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
541 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
543 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
544 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
548 // 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);
554 void cgroup_read(struct cgroup *cg) {
555 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
557 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
558 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
559 cgroup_read_memory(&cg->memory);
560 cgroup_read_blkio(&cg->io_service_bytes);
561 cgroup_read_blkio(&cg->io_serviced);
562 cgroup_read_blkio(&cg->throttle_io_service_bytes);
563 cgroup_read_blkio(&cg->throttle_io_serviced);
564 cgroup_read_blkio(&cg->io_merged);
565 cgroup_read_blkio(&cg->io_queued);
568 void read_all_cgroups(struct cgroup *root) {
569 debug(D_CGROUP, "reading metrics for all cgroups");
573 for(cg = root; cg ; cg = cg->next)
574 if(cg->enabled && cg->available)
578 // ----------------------------------------------------------------------------
579 // add/remove/find cgroup objects
581 #define CGROUP_CHARTID_LINE_MAX 1024
583 void cgroup_get_chart_id(struct cgroup *cg) {
584 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
587 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
589 snprintf(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
590 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
592 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
593 FILE *fp = mypopen(buffer, &cgroup_pid);
595 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
598 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
599 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
600 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
601 mypclose(fp, cgroup_pid);
602 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
604 if(s && *s && *s != '\n') {
605 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
609 free(cg->chart_title);
610 cg->chart_title = strdup(s);
612 fatal("CGROUP: Cannot allocate memory for chart name of cgroup '%s' chart name: '%s'", cg->id, s);
614 netdata_fix_chart_id(s);
617 cg->chart_id = strdup(s);
619 fatal("CGROUP: Cannot allocate memory for chart id of cgroup '%s' chart id: '%s'", cg->id, s);
621 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
623 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
626 struct cgroup *cgroup_add(const char *id) {
627 debug(D_CGROUP, "adding cgroup '%s'", id);
629 if(cgroup_root_count >= cgroup_root_max) {
630 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
634 int def = cgroup_enable_new_cgroups_detected_at_runtime;
635 const char *chart_id = id;
639 // disable by default the host cgroup
641 debug(D_CGROUP, "cgroup '%s' is the host container (by default %s)", id, (def)?"enabled":"disabled");
644 if(*chart_id == '/') chart_id++;
646 // disable by default the parent cgroup
647 // for known cgroup managers
648 if(!strcmp(chart_id, "lxc") ||
649 !strcmp(chart_id, "docker") ||
650 !strcmp(chart_id, "systemd") ||
651 !strncmp(chart_id, "user.slice", 10) ||
652 !strncmp(chart_id, "system.slice", 12)
655 debug(D_CGROUP, "cgroup '%s' is container manager (by default %s)", id, (def)?"enabled":"disabled");
659 struct cgroup *cg = calloc(1, sizeof(struct cgroup));
660 if(!cg) fatal("Cannot allocate memory for cgroup '%s'", id);
662 debug(D_CGROUP, "adding cgroup '%s'", id);
665 if(!cg->id) fatal("Cannot allocate memory for cgroup '%s'", id);
667 cg->hash = simple_hash(cg->id);
669 cg->chart_id = strdup(chart_id);
670 if(!cg->chart_id) fatal("Cannot allocate memory for cgroup '%s'", id);
672 cg->chart_title = strdup(chart_id);
673 if(!cg->chart_title) fatal("Cannot allocate memory for cgroup '%s'", id);
680 for(e = cgroup_root; e->next ;e = e->next) ;
686 // fix the name by calling the external script
687 cgroup_get_chart_id(cg);
689 char option[FILENAME_MAX + 1];
690 snprintf(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
691 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
693 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");
698 void cgroup_free(struct cgroup *cg) {
699 debug(D_CGROUP, "removing cgroup '%s'", cg->id);
702 // switch this to debug(D_CGROUP, ...
703 info("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");
705 free(cg->cpuacct_usage.cpu_percpu);
707 free(cg->cpuacct_stat.filename);
708 free(cg->cpuacct_usage.filename);
709 free(cg->memory.filename);
710 free(cg->io_service_bytes.filename);
711 free(cg->io_serviced.filename);
712 free(cg->throttle_io_service_bytes.filename);
713 free(cg->throttle_io_serviced.filename);
714 free(cg->io_merged.filename);
715 free(cg->io_queued.filename);
719 free(cg->chart_title);
725 // find if a given cgroup exists
726 struct cgroup *cgroup_find(const char *id) {
727 debug(D_CGROUP, "searching for cgroup '%s'", id);
729 uint32_t hash = simple_hash(id);
732 for(cg = cgroup_root; cg ; cg = cg->next) {
733 if(hash == cg->hash && strcmp(id, cg->id) == 0)
737 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
741 // ----------------------------------------------------------------------------
742 // detect running cgroups
744 // callback for find_file_in_subdirs()
745 void found_subdir_in_dir(const char *dir) {
746 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
748 struct cgroup *cg = cgroup_find(dir);
750 if(*dir && cgroup_max_depth > 0) {
754 for(s = dir; *s ;s++)
755 if(unlikely(*s == '/'))
758 if(depth > cgroup_max_depth) {
759 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
763 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
764 cg = cgroup_add(dir);
767 if(cg) cg->available = 1;
770 void find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
772 if(!this) this = base;
773 size_t dirlen = strlen(this), baselen = strlen(base);
774 const char *relative_path = &this[baselen];
776 DIR *dir = opendir(this);
779 callback(relative_path);
781 struct dirent *de = NULL;
782 while((de = readdir(dir))) {
783 if(de->d_type == DT_DIR
785 (de->d_name[0] == '.' && de->d_name[1] == '\0')
786 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
790 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
792 if(de->d_type == DT_DIR) {
794 // we check for this option here
795 // so that the config will not have settings
796 // for leaf directories
797 char option[FILENAME_MAX + 1];
798 snprintf(option, FILENAME_MAX, "search for cgroups under %s", (*relative_path == '\0')?"/":relative_path);
801 if(!strcmp(this, "system.slice") ||
802 !strcmp(this, "user.slice") ||
803 !strcmp(this, "systemd"))
806 enabled = config_get_boolean("plugin:cgroups", option, def);
810 char *s = malloc(dirlen + strlen(de->d_name) + 2);
814 strcat(s, de->d_name);
815 find_dir_in_subdirs(base, s, callback);
825 void mark_all_cgroups_as_not_available() {
826 debug(D_CGROUP, "marking all cgroups as not available");
830 // mark all as not available
831 for(cg = cgroup_root; cg ; cg = cg->next)
835 void cleanup_all_cgroups() {
836 struct cgroup *cg = cgroup_root, *last = NULL;
842 cgroup_root = cg->next;
844 last->next = cg->next;
860 void find_all_cgroups() {
861 debug(D_CGROUP, "searching for cgroups");
863 mark_all_cgroups_as_not_available();
865 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage)
866 find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir);
868 if(cgroup_enable_blkio)
869 find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir);
871 if(cgroup_enable_memory)
872 find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir);
874 // remove any non-existing cgroups
875 cleanup_all_cgroups();
878 for(cg = cgroup_root; cg ; cg = cg->next) {
879 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
881 if(unlikely(!cg->available))
884 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
886 // check for newly added cgroups
887 // and update the filenames they read
888 char filename[FILENAME_MAX + 1];
889 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
890 snprintf(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
891 cg->cpuacct_stat.filename = strdup(filename);
892 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
894 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
895 snprintf(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
896 cg->cpuacct_usage.filename = strdup(filename);
897 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
899 if(cgroup_enable_memory && !cg->memory.filename) {
900 snprintf(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
901 cg->memory.filename = strdup(filename);
902 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
904 if(cgroup_enable_blkio) {
905 if(!cg->io_service_bytes.filename) {
906 snprintf(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
907 cg->io_service_bytes.filename = strdup(filename);
908 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
910 if(!cg->io_serviced.filename) {
911 snprintf(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
912 cg->io_serviced.filename = strdup(filename);
913 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
915 if(!cg->throttle_io_service_bytes.filename) {
916 snprintf(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
917 cg->throttle_io_service_bytes.filename = strdup(filename);
918 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
920 if(!cg->throttle_io_serviced.filename) {
921 snprintf(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
922 cg->throttle_io_serviced.filename = strdup(filename);
923 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
925 if(!cg->io_merged.filename) {
926 snprintf(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
927 cg->io_merged.filename = strdup(filename);
928 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
930 if(!cg->io_queued.filename) {
931 snprintf(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
932 cg->io_queued.filename = strdup(filename);
933 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
938 debug(D_CGROUP, "done searching for cgroups");
942 // ----------------------------------------------------------------------------
945 #define CHART_TITLE_MAX 300
947 void update_cgroup_charts(int update_every) {
948 debug(D_CGROUP, "updating cgroups charts");
950 char type[RRD_ID_LENGTH_MAX + 1];
951 char title[CHART_TITLE_MAX + 1];
956 for(cg = cgroup_root; cg ; cg = cg->next) {
957 if(!cg->available || !cg->enabled)
960 if(cg->id[0] == '\0')
961 strcpy(type, "cgroup_host");
962 else if(cg->id[0] == '/')
963 snprintf(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
965 snprintf(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
967 netdata_fix_chart_id(type);
969 if(cg->cpuacct_stat.updated) {
970 st = rrdset_find_bytype(type, "cpu");
972 snprintf(title, CHART_TITLE_MAX, "CPU Usage for cgroup %s", cg->chart_title);
973 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
975 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
976 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
978 else rrdset_next(st);
980 rrddim_set(st, "user", cg->cpuacct_stat.user);
981 rrddim_set(st, "system", cg->cpuacct_stat.system);
985 if(cg->cpuacct_usage.updated) {
986 char id[RRD_ID_LENGTH_MAX + 1];
989 st = rrdset_find_bytype(type, "cpu_per_core");
991 snprintf(title, CHART_TITLE_MAX, "CPU Usage Per Core for cgroup %s", cg->chart_title);
992 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
994 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
995 snprintf(id, CHART_TITLE_MAX, "cpu%d", i);
996 rrddim_add(st, id, NULL, 100, 1000000, RRDDIM_INCREMENTAL);
999 else rrdset_next(st);
1001 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1002 snprintf(id, CHART_TITLE_MAX, "cpu%d", i);
1003 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1008 if(cg->memory.updated) {
1009 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1010 st = rrdset_find_bytype(type, "mem");
1012 snprintf(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1013 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40200, update_every,
1014 RRDSET_TYPE_STACKED);
1016 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1017 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1018 if(cg->memory.has_dirty_swap)
1019 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1020 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1021 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1023 else rrdset_next(st);
1025 rrddim_set(st, "cache", cg->memory.cache);
1026 rrddim_set(st, "rss", cg->memory.rss);
1027 if(cg->memory.has_dirty_swap)
1028 rrddim_set(st, "swap", cg->memory.swap);
1029 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1030 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1034 st = rrdset_find_bytype(type, "writeback");
1036 snprintf(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1037 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1038 update_every, RRDSET_TYPE_AREA);
1040 if(cg->memory.has_dirty_swap)
1041 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1042 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1044 else rrdset_next(st);
1046 if(cg->memory.has_dirty_swap)
1047 rrddim_set(st, "dirty", cg->memory.dirty);
1048 rrddim_set(st, "writeback", cg->memory.writeback);
1051 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1052 st = rrdset_find_bytype(type, "mem_activity");
1054 snprintf(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1055 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1056 40400, update_every, RRDSET_TYPE_LINE);
1058 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1059 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1061 else rrdset_next(st);
1063 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1064 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1068 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1069 st = rrdset_find_bytype(type, "pgfaults");
1071 snprintf(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1072 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1073 update_every, RRDSET_TYPE_LINE);
1075 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1076 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1078 else rrdset_next(st);
1080 rrddim_set(st, "pgfault", cg->memory.pgfault);
1081 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1086 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1087 st = rrdset_find_bytype(type, "io");
1089 snprintf(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1090 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1091 update_every, RRDSET_TYPE_LINE);
1093 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1094 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1096 else rrdset_next(st);
1098 rrddim_set(st, "read", cg->io_service_bytes.Read);
1099 rrddim_set(st, "write", cg->io_service_bytes.Write);
1103 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1104 st = rrdset_find_bytype(type, "serviced_ops");
1106 snprintf(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1107 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1108 update_every, RRDSET_TYPE_LINE);
1110 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1111 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1113 else rrdset_next(st);
1115 rrddim_set(st, "read", cg->io_serviced.Read);
1116 rrddim_set(st, "write", cg->io_serviced.Write);
1120 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1121 st = rrdset_find_bytype(type, "io");
1123 snprintf(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1124 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1125 update_every, RRDSET_TYPE_LINE);
1127 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1128 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1130 else rrdset_next(st);
1132 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1133 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1138 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1139 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1141 snprintf(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1142 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1143 update_every, RRDSET_TYPE_LINE);
1145 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1146 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1148 else rrdset_next(st);
1150 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1151 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1155 if(cg->io_queued.updated) {
1156 st = rrdset_find_bytype(type, "queued_ops");
1158 snprintf(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1159 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1160 update_every, RRDSET_TYPE_LINE);
1162 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1163 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1165 else rrdset_next(st);
1167 rrddim_set(st, "read", cg->io_queued.Read);
1168 rrddim_set(st, "write", cg->io_queued.Write);
1172 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1173 st = rrdset_find_bytype(type, "merged_ops");
1175 snprintf(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1176 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1177 update_every, RRDSET_TYPE_LINE);
1179 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1180 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1182 else rrdset_next(st);
1184 rrddim_set(st, "read", cg->io_merged.Read);
1185 rrddim_set(st, "write", cg->io_merged.Write);
1190 debug(D_CGROUP, "done updating cgroups charts");
1193 // ----------------------------------------------------------------------------
1196 int do_sys_fs_cgroup(int update_every, unsigned long long dt) {
1197 static int cgroup_global_config_read = 0;
1198 static time_t last_run = 0;
1199 time_t now = time(NULL);
1203 if(unlikely(!cgroup_global_config_read)) {
1204 read_cgroup_plugin_configuration();
1205 cgroup_global_config_read = 1;
1208 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1213 read_all_cgroups(cgroup_root);
1214 update_cgroup_charts(update_every);
1219 void *cgroups_main(void *ptr)
1223 info("CGROUP Plugin thread created with task id %d", gettid());
1225 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1226 error("Cannot set pthread cancel type to DEFERRED.");
1228 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1229 error("Cannot set pthread cancel state to ENABLE.");
1231 struct rusage thread;
1233 // when ZERO, attempt to do it
1234 int vdo_sys_fs_cgroup = 0;
1235 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1237 // keep track of the time each module was called
1238 unsigned long long sutime_sys_fs_cgroup = 0ULL;
1240 // the next time we will run - aligned properly
1241 unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
1242 unsigned long long sunow;
1244 RRDSET *stcpu_thread = NULL;
1247 if(unlikely(netdata_exit)) break;
1249 // delay until it is our time to run
1250 while((sunow = timems()) < sunext)
1251 usleep((useconds_t)(sunext - sunow));
1253 // find the next time we need to run
1254 while(timems() > sunext)
1255 sunext += rrd_update_every * 1000000ULL;
1257 if(unlikely(netdata_exit)) break;
1259 // BEGIN -- the job to be done
1261 if(!vdo_sys_fs_cgroup) {
1262 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1264 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1265 sutime_sys_fs_cgroup = sunow;
1267 if(unlikely(netdata_exit)) break;
1269 // END -- the job is done
1271 // --------------------------------------------------------------------
1273 if(!vdo_cpu_netdata) {
1274 getrusage(RUSAGE_THREAD, &thread);
1276 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1278 stcpu_thread = rrdset_create("netdata", "plugin_cgroups_cpu", NULL, "proc.internal", NULL, "NetData CGroups Plugin CPU usage", "milliseconds/s", 131000, rrd_update_every, RRDSET_TYPE_STACKED);
1280 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1281 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1283 else rrdset_next(stcpu_thread);
1285 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1286 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1287 rrdset_done(stcpu_thread);