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 = 500;
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) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
52 error("Cannot find cgroup cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
53 s = "/sys/fs/cgroup/cpuacct";
55 else s = mi->mount_point;
56 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
57 cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
59 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
60 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
62 error("Cannot find cgroup blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
63 s = "/sys/fs/cgroup/blkio";
65 else s = mi->mount_point;
66 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
67 cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
69 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
70 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
72 error("Cannot find cgroup memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
73 s = "/sys/fs/cgroup/memory";
75 else s = mi->mount_point;
76 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
77 cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
79 cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
80 cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
82 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);
87 // ----------------------------------------------------------------------------
95 unsigned long long Read;
96 unsigned long long Write;
98 unsigned long long Sync;
99 unsigned long long Async;
100 unsigned long long Total;
104 // https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
112 unsigned long long cache;
113 unsigned long long rss;
114 unsigned long long rss_huge;
115 unsigned long long mapped_file;
116 unsigned long long writeback;
117 unsigned long long dirty;
118 unsigned long long swap;
119 unsigned long long pgpgin;
120 unsigned long long pgpgout;
121 unsigned long long pgfault;
122 unsigned long long pgmajfault;
124 unsigned long long inactive_anon;
125 unsigned long long active_anon;
126 unsigned long long inactive_file;
127 unsigned long long active_file;
128 unsigned long long unevictable;
129 unsigned long long hierarchical_memory_limit;
130 unsigned long long total_cache;
131 unsigned long long total_rss;
132 unsigned long long total_rss_huge;
133 unsigned long long total_mapped_file;
134 unsigned long long total_writeback;
135 unsigned long long total_dirty;
136 unsigned long long total_swap;
137 unsigned long long total_pgpgin;
138 unsigned long long total_pgpgout;
139 unsigned long long total_pgfault;
140 unsigned long long total_pgmajfault;
141 unsigned long long total_inactive_anon;
142 unsigned long long total_active_anon;
143 unsigned long long total_inactive_file;
144 unsigned long long total_active_file;
145 unsigned long long total_unevictable;
149 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
150 struct cpuacct_stat {
155 unsigned long long user;
156 unsigned long long system;
159 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
160 struct cpuacct_usage {
166 unsigned long long *cpu_percpu;
170 int available; // found in the filesystem
171 int enabled; // enabled in the config
179 struct cpuacct_stat cpuacct_stat;
180 struct cpuacct_usage cpuacct_usage;
182 struct memory memory;
184 struct blkio io_service_bytes; // bytes
185 struct blkio io_serviced; // operations
187 struct blkio throttle_io_service_bytes; // bytes
188 struct blkio throttle_io_serviced; // operations
190 struct blkio io_merged; // operations
191 struct blkio io_queued; // operations
195 } *cgroup_root = NULL;
197 // ----------------------------------------------------------------------------
198 // read values from /sys
200 void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) {
201 static procfile *ff = NULL;
203 static uint32_t user_hash = 0;
204 static uint32_t system_hash = 0;
206 if(unlikely(user_hash == 0)) {
207 user_hash = simple_hash("user");
208 system_hash = simple_hash("system");
213 ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
216 ff = procfile_readall(ff);
219 unsigned long i, lines = procfile_lines(ff);
222 error("File '%s' should have 1+ lines.", cp->filename);
226 for(i = 0; i < lines ; i++) {
227 char *s = procfile_lineword(ff, i, 0);
228 uint32_t hash = simple_hash(s);
230 if(hash == user_hash && !strcmp(s, "user"))
231 cp->user = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
233 else if(hash == system_hash && !strcmp(s, "system"))
234 cp->system = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
239 // fprintf(stderr, "READ '%s': user: %llu, system: %llu\n", cp->filename, cp->user, cp->system);
243 void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) {
244 static procfile *ff = NULL;
248 ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT);
251 ff = procfile_readall(ff);
254 if(procfile_lines(ff) < 1) {
255 error("File '%s' should have 1+ lines but has %u.", ca->filename, procfile_lines(ff));
259 unsigned long i = procfile_linewords(ff, 0);
262 // we may have 1 more CPU reported
264 char *s = procfile_lineword(ff, 0, i - 1);
270 free(ca->cpu_percpu);
272 ca->cpu_percpu = malloc(sizeof(unsigned long long) * i);
274 fatal("Cannot allocate memory (%zu bytes)", sizeof(unsigned long long) * i);
279 for(i = 0; i < ca->cpus ;i++) {
280 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
281 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
288 void cgroup_read_blkio(struct blkio *io) {
289 static procfile *ff = NULL;
291 static uint32_t Read_hash = 0;
292 static uint32_t Write_hash = 0;
294 static uint32_t Sync_hash = 0;
295 static uint32_t Async_hash = 0;
296 static uint32_t Total_hash = 0;
299 if(unlikely(Read_hash == 0)) {
300 Read_hash = simple_hash("Read");
301 Write_hash = simple_hash("Write");
303 Sync_hash = simple_hash("Sync");
304 Async_hash = simple_hash("Async");
305 Total_hash = simple_hash("Total");
311 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
314 ff = procfile_readall(ff);
317 unsigned long i, lines = procfile_lines(ff);
320 error("File '%s' should have 1+ lines.", io->filename);
332 for(i = 0; i < lines ; i++) {
333 char *s = procfile_lineword(ff, i, 1);
334 uint32_t hash = simple_hash(s);
336 if(hash == Read_hash && !strcmp(s, "Read"))
337 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
339 else if(hash == Write_hash && !strcmp(s, "Write"))
340 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
343 else if(hash == Sync_hash && !strcmp(s, "Sync"))
344 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
346 else if(hash == Async_hash && !strcmp(s, "Async"))
347 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
349 else if(hash == Total_hash && !strcmp(s, "Total"))
350 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
355 // 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);
359 void cgroup_read_memory(struct memory *mem) {
360 static procfile *ff = NULL;
362 static uint32_t cache_hash = 0;
363 static uint32_t rss_hash = 0;
364 static uint32_t rss_huge_hash = 0;
365 static uint32_t mapped_file_hash = 0;
366 static uint32_t writeback_hash = 0;
367 static uint32_t dirty_hash = 0;
368 static uint32_t swap_hash = 0;
369 static uint32_t pgpgin_hash = 0;
370 static uint32_t pgpgout_hash = 0;
371 static uint32_t pgfault_hash = 0;
372 static uint32_t pgmajfault_hash = 0;
374 static uint32_t inactive_anon_hash = 0;
375 static uint32_t active_anon_hash = 0;
376 static uint32_t inactive_file_hash = 0;
377 static uint32_t active_file_hash = 0;
378 static uint32_t unevictable_hash = 0;
379 static uint32_t hierarchical_memory_limit_hash = 0;
380 static uint32_t total_cache_hash = 0;
381 static uint32_t total_rss_hash = 0;
382 static uint32_t total_rss_huge_hash = 0;
383 static uint32_t total_mapped_file_hash = 0;
384 static uint32_t total_writeback_hash = 0;
385 static uint32_t total_dirty_hash = 0;
386 static uint32_t total_swap_hash = 0;
387 static uint32_t total_pgpgin_hash = 0;
388 static uint32_t total_pgpgout_hash = 0;
389 static uint32_t total_pgfault_hash = 0;
390 static uint32_t total_pgmajfault_hash = 0;
391 static uint32_t total_inactive_anon_hash = 0;
392 static uint32_t total_active_anon_hash = 0;
393 static uint32_t total_inactive_file_hash = 0;
394 static uint32_t total_active_file_hash = 0;
395 static uint32_t total_unevictable_hash = 0;
397 if(unlikely(cache_hash == 0)) {
398 cache_hash = simple_hash("cache");
399 rss_hash = simple_hash("rss");
400 rss_huge_hash = simple_hash("rss_huge");
401 mapped_file_hash = simple_hash("mapped_file");
402 writeback_hash = simple_hash("writeback");
403 dirty_hash = simple_hash("dirty");
404 swap_hash = simple_hash("swap");
405 pgpgin_hash = simple_hash("pgpgin");
406 pgpgout_hash = simple_hash("pgpgout");
407 pgfault_hash = simple_hash("pgfault");
408 pgmajfault_hash = simple_hash("pgmajfault");
410 inactive_anon_hash = simple_hash("inactive_anon");
411 active_anon_hash = simple_hash("active_anon");
412 inactive_file_hash = simple_hash("inactive_file");
413 active_file_hash = simple_hash("active_file");
414 unevictable_hash = simple_hash("unevictable");
415 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
416 total_cache_hash = simple_hash("total_cache");
417 total_rss_hash = simple_hash("total_rss");
418 total_rss_huge_hash = simple_hash("total_rss_huge");
419 total_mapped_file_hash = simple_hash("total_mapped_file");
420 total_writeback_hash = simple_hash("total_writeback");
421 total_dirty_hash = simple_hash("total_dirty");
422 total_swap_hash = simple_hash("total_swap");
423 total_pgpgin_hash = simple_hash("total_pgpgin");
424 total_pgpgout_hash = simple_hash("total_pgpgout");
425 total_pgfault_hash = simple_hash("total_pgfault");
426 total_pgmajfault_hash = simple_hash("total_pgmajfault");
427 total_inactive_anon_hash = simple_hash("total_inactive_anon");
428 total_active_anon_hash = simple_hash("total_active_anon");
429 total_inactive_file_hash = simple_hash("total_inactive_file");
430 total_active_file_hash = simple_hash("total_active_file");
431 total_unevictable_hash = simple_hash("total_unevictable");
437 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
440 ff = procfile_readall(ff);
443 unsigned long i, lines = procfile_lines(ff);
446 error("File '%s' should have 1+ lines.", mem->filename);
450 for(i = 0; i < lines ; i++) {
451 char *s = procfile_lineword(ff, i, 0);
452 uint32_t hash = simple_hash(s);
454 if(hash == cache_hash && !strcmp(s, "cache"))
455 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
457 else if(hash == rss_hash && !strcmp(s, "rss"))
458 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
460 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
461 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
463 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
464 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
466 else if(hash == writeback_hash && !strcmp(s, "writeback"))
467 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
469 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
470 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
471 mem->has_dirty_swap = 1;
474 else if(hash == swap_hash && !strcmp(s, "swap")) {
475 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
476 mem->has_dirty_swap = 1;
479 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
480 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
482 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
483 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
485 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
486 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
488 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
489 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
492 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
493 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
495 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
496 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
498 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
499 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
501 else if(hash == active_file_hash && !strcmp(s, "active_file"))
502 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
504 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
505 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
507 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
508 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
510 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
511 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
513 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
514 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
516 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
517 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
519 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
520 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
522 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
523 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
525 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
526 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
528 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
529 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
531 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
532 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
534 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
535 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
537 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
538 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
540 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
541 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
543 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
544 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
546 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
547 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
549 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
550 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
552 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
553 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
555 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
556 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
560 // 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);
566 void cgroup_read(struct cgroup *cg) {
567 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
569 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
570 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
571 cgroup_read_memory(&cg->memory);
572 cgroup_read_blkio(&cg->io_service_bytes);
573 cgroup_read_blkio(&cg->io_serviced);
574 cgroup_read_blkio(&cg->throttle_io_service_bytes);
575 cgroup_read_blkio(&cg->throttle_io_serviced);
576 cgroup_read_blkio(&cg->io_merged);
577 cgroup_read_blkio(&cg->io_queued);
580 void read_all_cgroups(struct cgroup *root) {
581 debug(D_CGROUP, "reading metrics for all cgroups");
585 for(cg = root; cg ; cg = cg->next)
586 if(cg->enabled && cg->available)
590 // ----------------------------------------------------------------------------
591 // add/remove/find cgroup objects
593 #define CGROUP_CHARTID_LINE_MAX 1024
595 void cgroup_get_chart_id(struct cgroup *cg) {
596 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
599 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
601 snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
602 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
604 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
605 FILE *fp = mypopen(buffer, &cgroup_pid);
607 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
610 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
611 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
612 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
613 mypclose(fp, cgroup_pid);
614 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
616 if(s && *s && *s != '\n') {
617 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
621 free(cg->chart_title);
622 cg->chart_title = strdup(s);
624 fatal("CGROUP: Cannot allocate memory for chart name of cgroup '%s' chart name: '%s'", cg->id, s);
626 netdata_fix_chart_name(cg->chart_title);
629 cg->chart_id = strdup(s);
631 fatal("CGROUP: Cannot allocate memory for chart id of cgroup '%s' chart id: '%s'", cg->id, s);
633 netdata_fix_chart_id(cg->chart_id);
635 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
637 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
640 struct cgroup *cgroup_add(const char *id) {
641 debug(D_CGROUP, "adding cgroup '%s'", id);
643 if(cgroup_root_count >= cgroup_root_max) {
644 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
648 int def = cgroup_enable_new_cgroups_detected_at_runtime;
649 const char *chart_id = id;
653 // disable by default the root cgroup
655 debug(D_CGROUP, "cgroup '%s' is the root container (by default %s)", id, (def)?"enabled":"disabled");
658 if(*chart_id == '/') chart_id++;
660 size_t len = strlen(chart_id);
662 // disable by default the parent cgroup
663 // for known cgroup managers
664 if(!strcmp(chart_id, "lxc") ||
665 !strcmp(chart_id, "docker") ||
666 !strcmp(chart_id, "libvirt") ||
667 !strcmp(chart_id, "qemu") ||
668 !strcmp(chart_id, "systemd") ||
669 !strcmp(chart_id, "system.slice") ||
670 !strcmp(chart_id, "machine.slice") ||
671 !strcmp(chart_id, "init.scope") ||
672 !strcmp(chart_id, "user") ||
673 !strcmp(chart_id, "system") ||
674 !strcmp(chart_id, "machine") ||
676 (len > 6 && !strncmp(chart_id, "user/", 6)) ||
677 (len > 11 && !strncmp(chart_id, "user.slice/", 11)) ||
679 (len > 5 && !strncmp(&chart_id[len - 5], ".user", 5)) ||
680 (len > 5 && !strncmp(&chart_id[len - 5], ".swap", 5)) ||
681 (len > 6 && !strncmp(&chart_id[len - 6], ".slice", 6)) ||
682 (len > 6 && !strncmp(&chart_id[len - 6], ".mount", 6)) ||
683 (len > 8 && !strncmp(&chart_id[len - 8], ".session", 8)) ||
684 (len > 8 && !strncmp(&chart_id[len - 8], ".service", 8)) ||
685 (len > 10 && !strncmp(&chart_id[len - 10], ".partition", 10))
688 debug(D_CGROUP, "cgroup '%s' is %s (by default)", id, (def)?"enabled":"disabled");
692 struct cgroup *cg = calloc(1, sizeof(struct cgroup));
693 if(!cg) fatal("Cannot allocate memory for cgroup '%s'", id);
695 debug(D_CGROUP, "adding cgroup '%s'", id);
698 if(!cg->id) fatal("Cannot allocate memory for cgroup '%s'", id);
700 cg->hash = simple_hash(cg->id);
702 cg->chart_id = strdup(chart_id);
703 if(!cg->chart_id) fatal("Cannot allocate memory for cgroup '%s'", id);
705 cg->chart_title = strdup(chart_id);
706 if(!cg->chart_title) fatal("Cannot allocate memory for cgroup '%s'", id);
713 for(e = cgroup_root; e->next ;e = e->next) ;
719 // fix the name by calling the external script
720 cgroup_get_chart_id(cg);
722 char option[FILENAME_MAX + 1];
723 snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
724 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
726 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");
731 void cgroup_free(struct cgroup *cg) {
732 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");
734 free(cg->cpuacct_usage.cpu_percpu);
736 free(cg->cpuacct_stat.filename);
737 free(cg->cpuacct_usage.filename);
738 free(cg->memory.filename);
739 free(cg->io_service_bytes.filename);
740 free(cg->io_serviced.filename);
741 free(cg->throttle_io_service_bytes.filename);
742 free(cg->throttle_io_serviced.filename);
743 free(cg->io_merged.filename);
744 free(cg->io_queued.filename);
748 free(cg->chart_title);
754 // find if a given cgroup exists
755 struct cgroup *cgroup_find(const char *id) {
756 debug(D_CGROUP, "searching for cgroup '%s'", id);
758 uint32_t hash = simple_hash(id);
761 for(cg = cgroup_root; cg ; cg = cg->next) {
762 if(hash == cg->hash && strcmp(id, cg->id) == 0)
766 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
770 // ----------------------------------------------------------------------------
771 // detect running cgroups
773 // callback for find_file_in_subdirs()
774 void found_subdir_in_dir(const char *dir) {
775 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
777 struct cgroup *cg = cgroup_find(dir);
779 if(*dir && cgroup_max_depth > 0) {
783 for(s = dir; *s ;s++)
784 if(unlikely(*s == '/'))
787 if(depth > cgroup_max_depth) {
788 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
792 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
793 cg = cgroup_add(dir);
796 if(cg) cg->available = 1;
799 void find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
801 if(!this) this = base;
802 size_t dirlen = strlen(this), baselen = strlen(base);
803 const char *relative_path = &this[baselen];
805 DIR *dir = opendir(this);
808 callback(relative_path);
810 struct dirent *de = NULL;
811 while((de = readdir(dir))) {
812 if(de->d_type == DT_DIR
814 (de->d_name[0] == '.' && de->d_name[1] == '\0')
815 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
819 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
821 if(de->d_type == DT_DIR) {
823 const char *r = relative_path;
824 if(*r == '\0') r = "/";
825 else if (*r == '/') r++;
827 // we check for this option here
828 // so that the config will not have settings
829 // for leaf directories
830 char option[FILENAME_MAX + 1];
831 snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r);
832 option[FILENAME_MAX] = '\0';
833 enabled = config_get_boolean("plugin:cgroups", option, 1);
837 char *s = malloc(dirlen + strlen(de->d_name) + 2);
841 strcat(s, de->d_name);
842 find_dir_in_subdirs(base, s, callback);
852 void mark_all_cgroups_as_not_available() {
853 debug(D_CGROUP, "marking all cgroups as not available");
857 // mark all as not available
858 for(cg = cgroup_root; cg ; cg = cg->next)
862 void cleanup_all_cgroups() {
863 struct cgroup *cg = cgroup_root, *last = NULL;
869 cgroup_root = cg->next;
871 last->next = cg->next;
887 void find_all_cgroups() {
888 debug(D_CGROUP, "searching for cgroups");
890 mark_all_cgroups_as_not_available();
892 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage)
893 find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir);
895 if(cgroup_enable_blkio)
896 find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir);
898 if(cgroup_enable_memory)
899 find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir);
901 // remove any non-existing cgroups
902 cleanup_all_cgroups();
905 for(cg = cgroup_root; cg ; cg = cg->next) {
906 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
908 if(unlikely(!cg->available))
911 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
913 // check for newly added cgroups
914 // and update the filenames they read
915 char filename[FILENAME_MAX + 1];
916 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
917 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
918 cg->cpuacct_stat.filename = strdup(filename);
919 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
921 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
922 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
923 cg->cpuacct_usage.filename = strdup(filename);
924 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
926 if(cgroup_enable_memory && !cg->memory.filename) {
927 snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
928 cg->memory.filename = strdup(filename);
929 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
931 if(cgroup_enable_blkio) {
932 if(!cg->io_service_bytes.filename) {
933 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
934 cg->io_service_bytes.filename = strdup(filename);
935 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
937 if(!cg->io_serviced.filename) {
938 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
939 cg->io_serviced.filename = strdup(filename);
940 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
942 if(!cg->throttle_io_service_bytes.filename) {
943 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
944 cg->throttle_io_service_bytes.filename = strdup(filename);
945 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
947 if(!cg->throttle_io_serviced.filename) {
948 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
949 cg->throttle_io_serviced.filename = strdup(filename);
950 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
952 if(!cg->io_merged.filename) {
953 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
954 cg->io_merged.filename = strdup(filename);
955 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
957 if(!cg->io_queued.filename) {
958 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
959 cg->io_queued.filename = strdup(filename);
960 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
965 debug(D_CGROUP, "done searching for cgroups");
969 // ----------------------------------------------------------------------------
972 #define CHART_TITLE_MAX 300
974 void update_cgroup_charts(int update_every) {
975 debug(D_CGROUP, "updating cgroups charts");
977 char type[RRD_ID_LENGTH_MAX + 1];
978 char title[CHART_TITLE_MAX + 1];
983 for(cg = cgroup_root; cg ; cg = cg->next) {
984 if(!cg->available || !cg->enabled)
987 if(cg->id[0] == '\0')
988 strcpy(type, "cgroup_root");
989 else if(cg->id[0] == '/')
990 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
992 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
994 netdata_fix_chart_id(type);
996 if(cg->cpuacct_stat.updated) {
997 st = rrdset_find_bytype(type, "cpu");
999 snprintfz(title, CHART_TITLE_MAX, "CPU Usage for cgroup %s", cg->chart_title);
1000 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
1002 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
1003 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
1005 else rrdset_next(st);
1007 rrddim_set(st, "user", cg->cpuacct_stat.user);
1008 rrddim_set(st, "system", cg->cpuacct_stat.system);
1012 if(cg->cpuacct_usage.updated) {
1013 char id[RRD_ID_LENGTH_MAX + 1];
1016 st = rrdset_find_bytype(type, "cpu_per_core");
1018 snprintfz(title, CHART_TITLE_MAX, "CPU Usage Per Core for cgroup %s", cg->chart_title);
1019 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
1021 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1022 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1023 rrddim_add(st, id, NULL, 100, 1000000, RRDDIM_INCREMENTAL);
1026 else rrdset_next(st);
1028 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1029 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1030 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1035 if(cg->memory.updated) {
1036 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1037 st = rrdset_find_bytype(type, "mem");
1039 snprintfz(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1040 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40200, update_every,
1041 RRDSET_TYPE_STACKED);
1043 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1044 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1045 if(cg->memory.has_dirty_swap)
1046 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1047 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1048 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1050 else rrdset_next(st);
1052 rrddim_set(st, "cache", cg->memory.cache);
1053 rrddim_set(st, "rss", cg->memory.rss);
1054 if(cg->memory.has_dirty_swap)
1055 rrddim_set(st, "swap", cg->memory.swap);
1056 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1057 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1061 st = rrdset_find_bytype(type, "writeback");
1063 snprintfz(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1064 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1065 update_every, RRDSET_TYPE_AREA);
1067 if(cg->memory.has_dirty_swap)
1068 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1069 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1071 else rrdset_next(st);
1073 if(cg->memory.has_dirty_swap)
1074 rrddim_set(st, "dirty", cg->memory.dirty);
1075 rrddim_set(st, "writeback", cg->memory.writeback);
1078 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1079 st = rrdset_find_bytype(type, "mem_activity");
1081 snprintfz(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1082 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1083 40400, update_every, RRDSET_TYPE_LINE);
1085 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1086 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1088 else rrdset_next(st);
1090 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1091 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1095 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1096 st = rrdset_find_bytype(type, "pgfaults");
1098 snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1099 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1100 update_every, RRDSET_TYPE_LINE);
1102 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1103 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1105 else rrdset_next(st);
1107 rrddim_set(st, "pgfault", cg->memory.pgfault);
1108 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1113 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1114 st = rrdset_find_bytype(type, "io");
1116 snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1117 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1118 update_every, RRDSET_TYPE_LINE);
1120 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1121 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1123 else rrdset_next(st);
1125 rrddim_set(st, "read", cg->io_service_bytes.Read);
1126 rrddim_set(st, "write", cg->io_service_bytes.Write);
1130 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1131 st = rrdset_find_bytype(type, "serviced_ops");
1133 snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1134 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1135 update_every, RRDSET_TYPE_LINE);
1137 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1138 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1140 else rrdset_next(st);
1142 rrddim_set(st, "read", cg->io_serviced.Read);
1143 rrddim_set(st, "write", cg->io_serviced.Write);
1147 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1148 st = rrdset_find_bytype(type, "io");
1150 snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1151 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1152 update_every, RRDSET_TYPE_LINE);
1154 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1155 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1157 else rrdset_next(st);
1159 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1160 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1165 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1166 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1168 snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1169 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1170 update_every, RRDSET_TYPE_LINE);
1172 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1173 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1175 else rrdset_next(st);
1177 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1178 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1182 if(cg->io_queued.updated) {
1183 st = rrdset_find_bytype(type, "queued_ops");
1185 snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1186 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1187 update_every, RRDSET_TYPE_LINE);
1189 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1190 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1192 else rrdset_next(st);
1194 rrddim_set(st, "read", cg->io_queued.Read);
1195 rrddim_set(st, "write", cg->io_queued.Write);
1199 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1200 st = rrdset_find_bytype(type, "merged_ops");
1202 snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1203 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1204 update_every, RRDSET_TYPE_LINE);
1206 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1207 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1209 else rrdset_next(st);
1211 rrddim_set(st, "read", cg->io_merged.Read);
1212 rrddim_set(st, "write", cg->io_merged.Write);
1217 debug(D_CGROUP, "done updating cgroups charts");
1220 // ----------------------------------------------------------------------------
1223 int do_sys_fs_cgroup(int update_every, unsigned long long dt) {
1224 static int cgroup_global_config_read = 0;
1225 static time_t last_run = 0;
1226 time_t now = time(NULL);
1230 if(unlikely(!cgroup_global_config_read)) {
1231 read_cgroup_plugin_configuration();
1232 cgroup_global_config_read = 1;
1235 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1240 read_all_cgroups(cgroup_root);
1241 update_cgroup_charts(update_every);
1246 void *cgroups_main(void *ptr)
1250 info("CGROUP Plugin thread created with task id %d", gettid());
1252 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1253 error("Cannot set pthread cancel type to DEFERRED.");
1255 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1256 error("Cannot set pthread cancel state to ENABLE.");
1258 struct rusage thread;
1260 // when ZERO, attempt to do it
1261 int vdo_sys_fs_cgroup = 0;
1262 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1264 // keep track of the time each module was called
1265 unsigned long long sutime_sys_fs_cgroup = 0ULL;
1267 // the next time we will run - aligned properly
1268 unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
1269 unsigned long long sunow;
1271 RRDSET *stcpu_thread = NULL;
1274 if(unlikely(netdata_exit)) break;
1276 // delay until it is our time to run
1277 while((sunow = timems()) < sunext)
1278 usecsleep(sunext - sunow);
1280 // find the next time we need to run
1281 while(timems() > sunext)
1282 sunext += rrd_update_every * 1000000ULL;
1284 if(unlikely(netdata_exit)) break;
1286 // BEGIN -- the job to be done
1288 if(!vdo_sys_fs_cgroup) {
1289 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1291 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1292 sutime_sys_fs_cgroup = sunow;
1294 if(unlikely(netdata_exit)) break;
1296 // END -- the job is done
1298 // --------------------------------------------------------------------
1300 if(!vdo_cpu_netdata) {
1301 getrusage(RUSAGE_THREAD, &thread);
1303 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1305 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);
1307 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1308 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1310 else rrdset_next(stcpu_thread);
1312 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1313 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1314 rrdset_done(stcpu_thread);