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;
142 int usage_in_bytes_updated;
143 char *filename_usage_in_bytes;
144 unsigned long long usage_in_bytes;
146 int msw_usage_in_bytes_updated;
147 char *filename_msw_usage_in_bytes;
148 unsigned long long msw_usage_in_bytes;
151 char *filename_failcnt;
152 unsigned long long failcnt;
155 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
156 struct cpuacct_stat {
161 unsigned long long user;
162 unsigned long long system;
165 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
166 struct cpuacct_usage {
172 unsigned long long *cpu_percpu;
175 #define CGROUP_OPTIONS_DISABLED_DUPLICATE 0x00000001
180 char available; // found in the filesystem
181 char enabled; // enabled in the config
191 struct cpuacct_stat cpuacct_stat;
192 struct cpuacct_usage cpuacct_usage;
194 struct memory memory;
196 struct blkio io_service_bytes; // bytes
197 struct blkio io_serviced; // operations
199 struct blkio throttle_io_service_bytes; // bytes
200 struct blkio throttle_io_serviced; // operations
202 struct blkio io_merged; // operations
203 struct blkio io_queued; // operations
207 } *cgroup_root = NULL;
209 // ----------------------------------------------------------------------------
210 // read values from /sys
212 void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) {
213 static procfile *ff = NULL;
215 static uint32_t user_hash = 0;
216 static uint32_t system_hash = 0;
218 if(unlikely(user_hash == 0)) {
219 user_hash = simple_hash("user");
220 system_hash = simple_hash("system");
225 ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
228 ff = procfile_readall(ff);
231 unsigned long i, lines = procfile_lines(ff);
234 error("File '%s' should have 1+ lines.", cp->filename);
238 for(i = 0; i < lines ; i++) {
239 char *s = procfile_lineword(ff, i, 0);
240 uint32_t hash = simple_hash(s);
242 if(hash == user_hash && !strcmp(s, "user"))
243 cp->user = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
245 else if(hash == system_hash && !strcmp(s, "system"))
246 cp->system = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
251 // fprintf(stderr, "READ '%s': user: %llu, system: %llu\n", cp->filename, cp->user, cp->system);
255 void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) {
256 static procfile *ff = NULL;
260 ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT);
263 ff = procfile_readall(ff);
266 if(procfile_lines(ff) < 1) {
267 error("File '%s' should have 1+ lines but has %u.", ca->filename, procfile_lines(ff));
271 unsigned long i = procfile_linewords(ff, 0);
274 // we may have 1 more CPU reported
276 char *s = procfile_lineword(ff, 0, i - 1);
282 freez(ca->cpu_percpu);
283 ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i);
284 ca->cpus = (unsigned int)i;
287 for(i = 0; i < ca->cpus ;i++) {
288 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
289 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
296 void cgroup_read_blkio(struct blkio *io) {
297 static procfile *ff = NULL;
299 static uint32_t Read_hash = 0;
300 static uint32_t Write_hash = 0;
302 static uint32_t Sync_hash = 0;
303 static uint32_t Async_hash = 0;
304 static uint32_t Total_hash = 0;
307 if(unlikely(Read_hash == 0)) {
308 Read_hash = simple_hash("Read");
309 Write_hash = simple_hash("Write");
311 Sync_hash = simple_hash("Sync");
312 Async_hash = simple_hash("Async");
313 Total_hash = simple_hash("Total");
319 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
322 ff = procfile_readall(ff);
325 unsigned long i, lines = procfile_lines(ff);
328 error("File '%s' should have 1+ lines.", io->filename);
340 for(i = 0; i < lines ; i++) {
341 char *s = procfile_lineword(ff, i, 1);
342 uint32_t hash = simple_hash(s);
344 if(hash == Read_hash && !strcmp(s, "Read"))
345 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
347 else if(hash == Write_hash && !strcmp(s, "Write"))
348 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
351 else if(hash == Sync_hash && !strcmp(s, "Sync"))
352 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
354 else if(hash == Async_hash && !strcmp(s, "Async"))
355 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
357 else if(hash == Total_hash && !strcmp(s, "Total"))
358 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
363 // 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);
367 void cgroup_read_memory(struct memory *mem) {
368 static procfile *ff = NULL;
370 static uint32_t cache_hash = 0;
371 static uint32_t rss_hash = 0;
372 static uint32_t rss_huge_hash = 0;
373 static uint32_t mapped_file_hash = 0;
374 static uint32_t writeback_hash = 0;
375 static uint32_t dirty_hash = 0;
376 static uint32_t swap_hash = 0;
377 static uint32_t pgpgin_hash = 0;
378 static uint32_t pgpgout_hash = 0;
379 static uint32_t pgfault_hash = 0;
380 static uint32_t pgmajfault_hash = 0;
382 static uint32_t inactive_anon_hash = 0;
383 static uint32_t active_anon_hash = 0;
384 static uint32_t inactive_file_hash = 0;
385 static uint32_t active_file_hash = 0;
386 static uint32_t unevictable_hash = 0;
387 static uint32_t hierarchical_memory_limit_hash = 0;
388 static uint32_t total_cache_hash = 0;
389 static uint32_t total_rss_hash = 0;
390 static uint32_t total_rss_huge_hash = 0;
391 static uint32_t total_mapped_file_hash = 0;
392 static uint32_t total_writeback_hash = 0;
393 static uint32_t total_dirty_hash = 0;
394 static uint32_t total_swap_hash = 0;
395 static uint32_t total_pgpgin_hash = 0;
396 static uint32_t total_pgpgout_hash = 0;
397 static uint32_t total_pgfault_hash = 0;
398 static uint32_t total_pgmajfault_hash = 0;
399 static uint32_t total_inactive_anon_hash = 0;
400 static uint32_t total_active_anon_hash = 0;
401 static uint32_t total_inactive_file_hash = 0;
402 static uint32_t total_active_file_hash = 0;
403 static uint32_t total_unevictable_hash = 0;
405 if(unlikely(cache_hash == 0)) {
406 cache_hash = simple_hash("cache");
407 rss_hash = simple_hash("rss");
408 rss_huge_hash = simple_hash("rss_huge");
409 mapped_file_hash = simple_hash("mapped_file");
410 writeback_hash = simple_hash("writeback");
411 dirty_hash = simple_hash("dirty");
412 swap_hash = simple_hash("swap");
413 pgpgin_hash = simple_hash("pgpgin");
414 pgpgout_hash = simple_hash("pgpgout");
415 pgfault_hash = simple_hash("pgfault");
416 pgmajfault_hash = simple_hash("pgmajfault");
418 inactive_anon_hash = simple_hash("inactive_anon");
419 active_anon_hash = simple_hash("active_anon");
420 inactive_file_hash = simple_hash("inactive_file");
421 active_file_hash = simple_hash("active_file");
422 unevictable_hash = simple_hash("unevictable");
423 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
424 total_cache_hash = simple_hash("total_cache");
425 total_rss_hash = simple_hash("total_rss");
426 total_rss_huge_hash = simple_hash("total_rss_huge");
427 total_mapped_file_hash = simple_hash("total_mapped_file");
428 total_writeback_hash = simple_hash("total_writeback");
429 total_dirty_hash = simple_hash("total_dirty");
430 total_swap_hash = simple_hash("total_swap");
431 total_pgpgin_hash = simple_hash("total_pgpgin");
432 total_pgpgout_hash = simple_hash("total_pgpgout");
433 total_pgfault_hash = simple_hash("total_pgfault");
434 total_pgmajfault_hash = simple_hash("total_pgmajfault");
435 total_inactive_anon_hash = simple_hash("total_inactive_anon");
436 total_active_anon_hash = simple_hash("total_active_anon");
437 total_inactive_file_hash = simple_hash("total_inactive_file");
438 total_active_file_hash = simple_hash("total_active_file");
439 total_unevictable_hash = simple_hash("total_unevictable");
445 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
448 ff = procfile_readall(ff);
451 unsigned long i, lines = procfile_lines(ff);
454 error("File '%s' should have 1+ lines.", mem->filename);
458 for(i = 0; i < lines ; i++) {
459 char *s = procfile_lineword(ff, i, 0);
460 uint32_t hash = simple_hash(s);
462 if(hash == cache_hash && !strcmp(s, "cache"))
463 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
465 else if(hash == rss_hash && !strcmp(s, "rss"))
466 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
468 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
469 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
471 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
472 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
474 else if(hash == writeback_hash && !strcmp(s, "writeback"))
475 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
477 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
478 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
479 mem->has_dirty_swap = 1;
482 else if(hash == swap_hash && !strcmp(s, "swap")) {
483 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
484 mem->has_dirty_swap = 1;
487 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
488 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
490 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
491 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
493 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
494 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
496 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
497 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
500 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
501 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
503 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
504 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
506 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
507 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
509 else if(hash == active_file_hash && !strcmp(s, "active_file"))
510 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
512 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
513 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
515 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
516 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
518 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
519 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
521 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
522 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
524 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
525 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
527 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
528 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
530 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
531 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
533 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
534 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
536 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
537 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
539 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
540 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
542 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
543 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
545 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
546 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
548 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
549 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
551 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
552 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
554 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
555 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
557 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
558 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
560 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
561 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
563 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
564 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
568 // 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);
573 mem->usage_in_bytes_updated = 0;
574 if(mem->filename_usage_in_bytes) {
575 if(likely(!read_single_number_file(mem->filename_usage_in_bytes, &mem->usage_in_bytes)))
576 mem->usage_in_bytes_updated = 1;
579 mem->msw_usage_in_bytes_updated = 0;
580 if(mem->filename_msw_usage_in_bytes) {
581 if(likely(!read_single_number_file(mem->filename_msw_usage_in_bytes, &mem->msw_usage_in_bytes)))
582 mem->msw_usage_in_bytes_updated = 1;
585 mem->failcnt_updated = 0;
586 if(mem->filename_failcnt) {
587 if(likely(!read_single_number_file(mem->filename_failcnt, &mem->failcnt)))
588 mem->failcnt_updated = 1;
592 void cgroup_read(struct cgroup *cg) {
593 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
595 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
596 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
597 cgroup_read_memory(&cg->memory);
598 cgroup_read_blkio(&cg->io_service_bytes);
599 cgroup_read_blkio(&cg->io_serviced);
600 cgroup_read_blkio(&cg->throttle_io_service_bytes);
601 cgroup_read_blkio(&cg->throttle_io_serviced);
602 cgroup_read_blkio(&cg->io_merged);
603 cgroup_read_blkio(&cg->io_queued);
606 void read_all_cgroups(struct cgroup *root) {
607 debug(D_CGROUP, "reading metrics for all cgroups");
611 for(cg = root; cg ; cg = cg->next)
612 if(cg->enabled && cg->available)
616 // ----------------------------------------------------------------------------
617 // add/remove/find cgroup objects
619 #define CGROUP_CHARTID_LINE_MAX 1024
621 void cgroup_get_chart_id(struct cgroup *cg) {
622 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
625 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
627 snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
628 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
630 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
631 FILE *fp = mypopen(buffer, &cgroup_pid);
633 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
636 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
637 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
638 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
639 mypclose(fp, cgroup_pid);
640 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
642 if(s && *s && *s != '\n') {
643 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
647 freez(cg->chart_title);
648 cg->chart_title = strdupz(s);
649 netdata_fix_chart_name(cg->chart_title);
652 cg->chart_id = strdupz(s);
653 netdata_fix_chart_id(cg->chart_id);
654 cg->hash_chart = simple_hash(cg->chart_id);
656 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
658 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
661 struct cgroup *cgroup_add(const char *id) {
662 debug(D_CGROUP, "adding cgroup '%s'", id);
664 if(cgroup_root_count >= cgroup_root_max) {
665 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
669 int def = cgroup_enable_new_cgroups_detected_at_runtime;
670 const char *chart_id = id;
674 // disable by default the root cgroup
676 debug(D_CGROUP, "cgroup '%s' is the root container (by default %s)", id, (def)?"enabled":"disabled");
679 if(*chart_id == '/') chart_id++;
681 size_t len = strlen(chart_id);
683 // disable by default the parent cgroup
684 // for known cgroup managers
685 if(!strcmp(chart_id, "lxc") ||
686 !strcmp(chart_id, "docker") ||
687 !strcmp(chart_id, "libvirt") ||
688 !strcmp(chart_id, "qemu") ||
689 !strcmp(chart_id, "systemd") ||
690 !strcmp(chart_id, "system.slice") ||
691 !strcmp(chart_id, "machine.slice") ||
692 !strcmp(chart_id, "init.scope") ||
693 !strcmp(chart_id, "user") ||
694 !strcmp(chart_id, "system") ||
695 !strcmp(chart_id, "machine") ||
697 (len > 6 && !strncmp(chart_id, "user/", 6)) ||
698 (len > 11 && !strncmp(chart_id, "user.slice/", 11)) ||
700 (len > 5 && !strncmp(&chart_id[len - 5], ".user", 5)) ||
701 (len > 5 && !strncmp(&chart_id[len - 5], ".swap", 5)) ||
702 (len > 6 && !strncmp(&chart_id[len - 6], ".slice", 6)) ||
703 (len > 6 && !strncmp(&chart_id[len - 6], ".mount", 6)) ||
704 (len > 8 && !strncmp(&chart_id[len - 8], ".session", 8)) ||
705 (len > 8 && !strncmp(&chart_id[len - 8], ".service", 8)) ||
706 (len > 10 && !strncmp(&chart_id[len - 10], ".partition", 10)) ||
707 // starts and ends with them
708 (len > 7 && !strncmp(chart_id, "lxc/", 4) && !strncmp(&chart_id[len - 3], "/ns", 3)) // #1397
711 debug(D_CGROUP, "cgroup '%s' is %s (by default)", id, (def)?"enabled":"disabled");
715 struct cgroup *cg = callocz(1, sizeof(struct cgroup));
717 cg->id = strdupz(id);
718 cg->hash = simple_hash(cg->id);
720 cg->chart_id = strdupz(chart_id);
721 netdata_fix_chart_id(cg->chart_id);
722 cg->hash_chart = simple_hash(cg->chart_id);
724 cg->chart_title = strdupz(chart_id);
731 for(e = cgroup_root; e->next ;e = e->next) ;
737 // fix the name by calling the external script
738 cgroup_get_chart_id(cg);
740 debug(D_CGROUP, "adding cgroup '%s' with chart id '%s'", id, chart_id);
742 char option[FILENAME_MAX + 1];
743 snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
744 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
748 for (t = cgroup_root; t; t = t->next) {
749 if (t != cg && t->enabled && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) {
750 if (!strncmp(t->chart_id, "/system.slice/", 14) && !strncmp(cg->chart_id, "/init.scope/system.slice/", 25)) {
751 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'.",
752 cg->chart_id, t->id, cg->id, t->id);
753 debug(D_CGROUP, "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'.",
754 cg->chart_id, t->id, cg->id, t->id);
756 t->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE;
759 error("Control group with chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.",
760 cg->chart_id, t->id, cg->id);
761 debug(D_CGROUP, "Control group with chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.",
762 cg->chart_id, t->id, cg->id);
764 cg->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE;
772 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");
777 void cgroup_free(struct cgroup *cg) {
778 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");
780 freez(cg->cpuacct_usage.cpu_percpu);
782 freez(cg->cpuacct_stat.filename);
783 freez(cg->cpuacct_usage.filename);
784 freez(cg->memory.filename);
785 freez(cg->io_service_bytes.filename);
786 freez(cg->io_serviced.filename);
787 freez(cg->throttle_io_service_bytes.filename);
788 freez(cg->throttle_io_serviced.filename);
789 freez(cg->io_merged.filename);
790 freez(cg->io_queued.filename);
794 freez(cg->chart_title);
800 // find if a given cgroup exists
801 struct cgroup *cgroup_find(const char *id) {
802 debug(D_CGROUP, "searching for cgroup '%s'", id);
804 uint32_t hash = simple_hash(id);
807 for(cg = cgroup_root; cg ; cg = cg->next) {
808 if(hash == cg->hash && strcmp(id, cg->id) == 0)
812 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
816 // ----------------------------------------------------------------------------
817 // detect running cgroups
819 // callback for find_file_in_subdirs()
820 void found_subdir_in_dir(const char *dir) {
821 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
823 struct cgroup *cg = cgroup_find(dir);
825 if(*dir && cgroup_max_depth > 0) {
829 for(s = dir; *s ;s++)
830 if(unlikely(*s == '/'))
833 if(depth > cgroup_max_depth) {
834 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
838 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
839 cg = cgroup_add(dir);
842 if(cg) cg->available = 1;
845 int find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
846 debug(D_CGROUP, "searching for directories in '%s'", base);
850 if(!this) this = base;
851 size_t dirlen = strlen(this), baselen = strlen(base);
852 const char *relative_path = &this[baselen];
854 DIR *dir = opendir(this);
856 error("Cannot read cgroups directory '%s'", base);
861 callback(relative_path);
863 struct dirent *de = NULL;
864 while((de = readdir(dir))) {
865 if(de->d_type == DT_DIR
867 (de->d_name[0] == '.' && de->d_name[1] == '\0')
868 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
872 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
874 if(de->d_type == DT_DIR) {
876 const char *r = relative_path;
877 if(*r == '\0') r = "/";
878 else if (*r == '/') r++;
880 // do not decent in directories we are not interested
881 // https://github.com/firehol/netdata/issues/345
883 size_t len = strlen(r);
884 if(len > 5 && !strncmp(&r[len - 5], "-qemu", 5))
887 // we check for this option here
888 // so that the config will not have settings
889 // for leaf directories
890 char option[FILENAME_MAX + 1];
891 snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r);
892 option[FILENAME_MAX] = '\0';
893 enabled = config_get_boolean("plugin:cgroups", option, def);
897 char *s = mallocz(dirlen + strlen(de->d_name) + 2);
900 strcat(s, de->d_name);
901 int ret2 = find_dir_in_subdirs(base, s, callback);
902 if(ret2 > 0) ret += ret2;
912 void mark_all_cgroups_as_not_available() {
913 debug(D_CGROUP, "marking all cgroups as not available");
917 // mark all as not available
918 for(cg = cgroup_root; cg ; cg = cg->next) {
923 void cleanup_all_cgroups() {
924 struct cgroup *cg = cgroup_root, *last = NULL;
928 // enable the first duplicate cgroup
931 for(t = cgroup_root; t ; t = t->next) {
932 if(t != cg && t->available && !t->enabled && t->options & CGROUP_OPTIONS_DISABLED_DUPLICATE && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) {
933 debug(D_CGROUP, "Enabling duplicate of cgroup '%s' with id '%s', because the original with id '%s' stopped.", t->chart_id, t->id, cg->id);
935 t->options &= ~CGROUP_OPTIONS_DISABLED_DUPLICATE;
942 cgroup_root = cg->next;
944 last->next = cg->next;
960 void find_all_cgroups() {
961 debug(D_CGROUP, "searching for cgroups");
963 mark_all_cgroups_as_not_available();
965 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage) {
966 if (find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir) == -1) {
967 cgroup_enable_cpuacct_stat = cgroup_enable_cpuacct_usage = 0;
968 error("disabled cgroup cpu statistics.");
972 if(cgroup_enable_blkio) {
973 if (find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir) == -1) {
974 cgroup_enable_blkio = 0;
975 error("disabled cgroup blkio statistics.");
979 if(cgroup_enable_memory) {
980 if(find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir) == -1) {
981 cgroup_enable_memory = 0;
982 error("disabled cgroup memory statistics.");
986 if(cgroup_enable_devices) {
987 if(find_dir_in_subdirs(cgroup_devices_base, NULL, found_subdir_in_dir) == -1) {
988 cgroup_enable_devices = 0;
989 error("disabled cgroup devices statistics.");
993 // remove any non-existing cgroups
994 cleanup_all_cgroups();
998 for(cg = cgroup_root; cg ; cg = cg->next) {
999 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
1001 if(unlikely(!cg->available))
1004 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
1006 // check for newly added cgroups
1007 // and update the filenames they read
1008 char filename[FILENAME_MAX + 1];
1009 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
1010 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
1011 if(stat(filename, &buf) != -1) {
1012 cg->cpuacct_stat.filename = strdupz(filename);
1013 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
1015 else debug(D_CGROUP, "cpuacct.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1017 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
1018 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
1019 if(stat(filename, &buf) != -1) {
1020 cg->cpuacct_usage.filename = strdupz(filename);
1021 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
1023 else debug(D_CGROUP, "cpuacct.usage_percpu file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1025 if(cgroup_enable_memory && !cg->memory.filename) {
1026 snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
1027 if(stat(filename, &buf) != -1) {
1028 cg->memory.filename = strdupz(filename);
1029 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
1031 else debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1033 snprintfz(filename, FILENAME_MAX, "%s%s/memory.usage_in_bytes", cgroup_memory_base, cg->id);
1034 if(stat(filename, &buf) != -1) {
1035 cg->memory.filename_usage_in_bytes = strdupz(filename);
1036 debug(D_CGROUP, "memory.usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_usage_in_bytes);
1038 else debug(D_CGROUP, "memory.usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1040 snprintfz(filename, FILENAME_MAX, "%s%s/memory.msw_usage_in_bytes", cgroup_memory_base, cg->id);
1041 if(stat(filename, &buf) != -1) {
1042 cg->memory.filename_msw_usage_in_bytes = strdupz(filename);
1043 debug(D_CGROUP, "memory.msw_usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_msw_usage_in_bytes);
1045 else debug(D_CGROUP, "memory.msw_usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1047 snprintfz(filename, FILENAME_MAX, "%s%s/memory.failcnt", cgroup_memory_base, cg->id);
1048 if(stat(filename, &buf) != -1) {
1049 cg->memory.filename_failcnt = strdupz(filename);
1050 debug(D_CGROUP, "memory.failcnt filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_failcnt);
1052 else debug(D_CGROUP, "memory.failcnt file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1054 if(cgroup_enable_blkio) {
1055 if(!cg->io_service_bytes.filename) {
1056 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
1057 if(stat(filename, &buf) != -1) {
1058 cg->io_service_bytes.filename = strdupz(filename);
1059 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
1061 else debug(D_CGROUP, "io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1063 if(!cg->io_serviced.filename) {
1064 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
1065 if(stat(filename, &buf) != -1) {
1066 cg->io_serviced.filename = strdupz(filename);
1067 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
1069 else debug(D_CGROUP, "io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1071 if(!cg->throttle_io_service_bytes.filename) {
1072 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
1073 if(stat(filename, &buf) != -1) {
1074 cg->throttle_io_service_bytes.filename = strdupz(filename);
1075 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
1077 else debug(D_CGROUP, "throttle_io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1079 if(!cg->throttle_io_serviced.filename) {
1080 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
1081 if(stat(filename, &buf) != -1) {
1082 cg->throttle_io_serviced.filename = strdupz(filename);
1083 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
1085 else debug(D_CGROUP, "throttle_io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1087 if(!cg->io_merged.filename) {
1088 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
1089 if(stat(filename, &buf) != -1) {
1090 cg->io_merged.filename = strdupz(filename);
1091 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
1093 else debug(D_CGROUP, "io_merged file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1095 if(!cg->io_queued.filename) {
1096 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
1097 if(stat(filename, &buf) != -1) {
1098 cg->io_queued.filename = strdupz(filename);
1099 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
1101 else debug(D_CGROUP, "io_queued file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1106 debug(D_CGROUP, "done searching for cgroups");
1110 // ----------------------------------------------------------------------------
1113 #define CHART_TITLE_MAX 300
1115 void update_cgroup_charts(int update_every) {
1116 debug(D_CGROUP, "updating cgroups charts");
1118 char type[RRD_ID_LENGTH_MAX + 1];
1119 char title[CHART_TITLE_MAX + 1];
1124 for(cg = cgroup_root; cg ; cg = cg->next) {
1125 if(!cg->available || !cg->enabled)
1128 if(cg->id[0] == '\0')
1129 strcpy(type, "cgroup_root");
1130 else if(cg->id[0] == '/')
1131 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1133 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1135 netdata_fix_chart_id(type);
1137 if(cg->cpuacct_stat.updated) {
1138 st = rrdset_find_bytype(type, "cpu");
1140 snprintfz(title, CHART_TITLE_MAX, "CPU Usage (%d%% = %d core%s) for cgroup %s", (processors * 100), processors, (processors>1)?"s":"", cg->chart_title);
1141 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
1143 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
1144 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
1146 else rrdset_next(st);
1148 rrddim_set(st, "user", cg->cpuacct_stat.user);
1149 rrddim_set(st, "system", cg->cpuacct_stat.system);
1153 if(cg->cpuacct_usage.updated) {
1154 char id[RRD_ID_LENGTH_MAX + 1];
1157 st = rrdset_find_bytype(type, "cpu_per_core");
1159 snprintfz(title, CHART_TITLE_MAX, "CPU Usage (%d%% = %d core%s) Per Core for cgroup %s", (processors * 100), processors, (processors>1)?"s":"", cg->chart_title);
1160 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
1162 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1163 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1164 rrddim_add(st, id, NULL, 100, 1000000000, RRDDIM_INCREMENTAL);
1167 else rrdset_next(st);
1169 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1170 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1171 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1176 if(cg->memory.updated) {
1177 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1178 st = rrdset_find_bytype(type, "mem");
1180 snprintfz(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1181 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40210, update_every,
1182 RRDSET_TYPE_STACKED);
1184 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1185 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1186 if(cg->memory.has_dirty_swap)
1187 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1188 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1189 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1191 else rrdset_next(st);
1193 rrddim_set(st, "cache", cg->memory.cache);
1194 rrddim_set(st, "rss", cg->memory.rss);
1195 if(cg->memory.has_dirty_swap)
1196 rrddim_set(st, "swap", cg->memory.swap);
1197 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1198 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1202 st = rrdset_find_bytype(type, "writeback");
1204 snprintfz(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1205 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1206 update_every, RRDSET_TYPE_AREA);
1208 if(cg->memory.has_dirty_swap)
1209 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1210 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1212 else rrdset_next(st);
1214 if(cg->memory.has_dirty_swap)
1215 rrddim_set(st, "dirty", cg->memory.dirty);
1216 rrddim_set(st, "writeback", cg->memory.writeback);
1219 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1220 st = rrdset_find_bytype(type, "mem_activity");
1222 snprintfz(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1223 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1224 40400, update_every, RRDSET_TYPE_LINE);
1226 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1227 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1229 else rrdset_next(st);
1231 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1232 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1236 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1237 st = rrdset_find_bytype(type, "pgfaults");
1239 snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1240 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1241 update_every, RRDSET_TYPE_LINE);
1243 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1244 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1246 else rrdset_next(st);
1248 rrddim_set(st, "pgfault", cg->memory.pgfault);
1249 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1254 if(cg->memory.usage_in_bytes_updated) {
1255 st = rrdset_find_bytype(type, "mem_usage");
1257 snprintfz(title, CHART_TITLE_MAX, "Total Memory for cgroup %s", cg->chart_title);
1258 st = rrdset_create(type, "mem_usage", NULL, "mem", "cgroup.mem_usage", title, "MB", 40200,
1259 update_every, RRDSET_TYPE_STACKED);
1261 rrddim_add(st, "ram", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1262 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1264 else rrdset_next(st);
1266 rrddim_set(st, "ram", cg->memory.usage_in_bytes);
1267 rrddim_set(st, "swap", (cg->memory.msw_usage_in_bytes > cg->memory.usage_in_bytes)?cg->memory.msw_usage_in_bytes - cg->memory.usage_in_bytes:0);
1271 if(cg->memory.failcnt_updated && cg->memory.failcnt > 0) {
1272 st = rrdset_find_bytype(type, "mem_failcnt");
1274 snprintfz(title, CHART_TITLE_MAX, "Memory Limit Failures for cgroup %s", cg->chart_title);
1275 st = rrdset_create(type, "mem_failcnt", NULL, "mem", "cgroup.mem_failcnt", title, "MB", 40250,
1276 update_every, RRDSET_TYPE_LINE);
1278 rrddim_add(st, "failures", NULL, 1, 1, RRDDIM_INCREMENTAL);
1280 else rrdset_next(st);
1282 rrddim_set(st, "failures", cg->memory.failcnt);
1286 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1287 st = rrdset_find_bytype(type, "io");
1289 snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1290 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1291 update_every, RRDSET_TYPE_AREA);
1293 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1294 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1296 else rrdset_next(st);
1298 rrddim_set(st, "read", cg->io_service_bytes.Read);
1299 rrddim_set(st, "write", cg->io_service_bytes.Write);
1303 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1304 st = rrdset_find_bytype(type, "serviced_ops");
1306 snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1307 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1308 update_every, RRDSET_TYPE_LINE);
1310 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1311 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1313 else rrdset_next(st);
1315 rrddim_set(st, "read", cg->io_serviced.Read);
1316 rrddim_set(st, "write", cg->io_serviced.Write);
1320 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1321 st = rrdset_find_bytype(type, "throttle_io");
1323 snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1324 st = rrdset_create(type, "throttle_io", NULL, "disk", "cgroup.throttle_io", title, "KB/s", 41200,
1325 update_every, RRDSET_TYPE_AREA);
1327 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1328 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1330 else rrdset_next(st);
1332 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1333 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1338 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1339 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1341 snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1342 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1343 update_every, RRDSET_TYPE_LINE);
1345 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1346 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1348 else rrdset_next(st);
1350 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1351 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1355 if(cg->io_queued.updated) {
1356 st = rrdset_find_bytype(type, "queued_ops");
1358 snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1359 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1360 update_every, RRDSET_TYPE_LINE);
1362 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1363 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1365 else rrdset_next(st);
1367 rrddim_set(st, "read", cg->io_queued.Read);
1368 rrddim_set(st, "write", cg->io_queued.Write);
1372 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1373 st = rrdset_find_bytype(type, "merged_ops");
1375 snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1376 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1377 update_every, RRDSET_TYPE_LINE);
1379 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1380 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1382 else rrdset_next(st);
1384 rrddim_set(st, "read", cg->io_merged.Read);
1385 rrddim_set(st, "write", cg->io_merged.Write);
1390 debug(D_CGROUP, "done updating cgroups charts");
1393 // ----------------------------------------------------------------------------
1396 int do_sys_fs_cgroup(int update_every, usec_t dt) {
1399 static int cgroup_global_config_read = 0;
1400 static time_t last_run = 0;
1401 time_t now = now_realtime_sec();
1403 if(unlikely(!cgroup_global_config_read)) {
1404 read_cgroup_plugin_configuration();
1405 cgroup_global_config_read = 1;
1408 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1413 read_all_cgroups(cgroup_root);
1414 update_cgroup_charts(update_every);
1419 void *cgroups_main(void *ptr)
1423 info("CGROUP Plugin thread created with task id %d", gettid());
1425 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1426 error("Cannot set pthread cancel type to DEFERRED.");
1428 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1429 error("Cannot set pthread cancel state to ENABLE.");
1431 struct rusage thread;
1433 // when ZERO, attempt to do it
1434 int vdo_sys_fs_cgroup = 0;
1435 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1437 // keep track of the time each module was called
1438 usec_t sutime_sys_fs_cgroup = 0ULL;
1440 // the next time we will run - aligned properly
1441 usec_t sunext = (now_realtime_sec() - (now_realtime_sec() % rrd_update_every) + rrd_update_every) * USEC_PER_SEC;
1443 RRDSET *stcpu_thread = NULL;
1447 if(unlikely(netdata_exit)) break;
1449 // delay until it is our time to run
1450 while((sunow = now_realtime_usec()) < sunext)
1451 sleep_usec(sunext - sunow);
1453 // find the next time we need to run
1454 while(now_realtime_usec() > sunext)
1455 sunext += rrd_update_every * USEC_PER_SEC;
1457 if(unlikely(netdata_exit)) break;
1459 // BEGIN -- the job to be done
1461 if(!vdo_sys_fs_cgroup) {
1462 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1463 sunow = now_realtime_usec();
1464 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1465 sutime_sys_fs_cgroup = sunow;
1467 if(unlikely(netdata_exit)) break;
1469 // END -- the job is done
1471 // --------------------------------------------------------------------
1473 if(!vdo_cpu_netdata) {
1474 getrusage(RUSAGE_THREAD, &thread);
1476 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1478 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);
1480 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1481 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1483 else rrdset_next(stcpu_thread);
1485 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1486 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1487 rrdset_done(stcpu_thread);
1491 info("CGROUP thread exiting");