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_devices = CONFIG_ONDEMAND_ONDEMAND;
28 static int cgroup_enable_blkio = CONFIG_ONDEMAND_ONDEMAND;
29 static int cgroup_enable_new_cgroups_detected_at_runtime = 1;
30 static int cgroup_check_for_new_every = 10;
31 static char *cgroup_cpuacct_base = NULL;
32 static char *cgroup_blkio_base = NULL;
33 static char *cgroup_memory_base = NULL;
34 static char *cgroup_devices_base = NULL;
36 static int cgroup_root_count = 0;
37 static int cgroup_root_max = 500;
38 static int cgroup_max_depth = 0;
40 void read_cgroup_plugin_configuration() {
41 cgroup_check_for_new_every = config_get_number("plugin:cgroups", "check for new cgroups every", cgroup_check_for_new_every);
43 cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat", cgroup_enable_cpuacct_stat);
44 cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage", cgroup_enable_cpuacct_usage);
45 cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
46 cgroup_enable_blkio = config_get_boolean_ondemand("plugin:cgroups", "enable blkio", cgroup_enable_blkio);
48 char filename[FILENAME_MAX + 1], *s;
49 struct mountinfo *mi, *root = mountinfo_read();
51 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
52 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
54 error("Cannot find cgroup cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
55 s = "/sys/fs/cgroup/cpuacct";
57 else s = mi->mount_point;
58 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
59 cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
61 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
62 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
64 error("Cannot find cgroup blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
65 s = "/sys/fs/cgroup/blkio";
67 else s = mi->mount_point;
68 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
69 cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
71 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
72 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
74 error("Cannot find cgroup memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
75 s = "/sys/fs/cgroup/memory";
77 else s = mi->mount_point;
78 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
79 cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
81 mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices");
82 if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices");
84 error("Cannot find cgroup devices mountinfo. Assuming default: /sys/fs/cgroup/devices");
85 s = "/sys/fs/cgroup/devices";
87 else s = mi->mount_point;
88 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
89 cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename);
91 cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
92 cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
94 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);
99 // ----------------------------------------------------------------------------
107 unsigned long long Read;
108 unsigned long long Write;
110 unsigned long long Sync;
111 unsigned long long Async;
112 unsigned long long Total;
116 // https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
124 unsigned long long cache;
125 unsigned long long rss;
126 unsigned long long rss_huge;
127 unsigned long long mapped_file;
128 unsigned long long writeback;
129 unsigned long long dirty;
130 unsigned long long swap;
131 unsigned long long pgpgin;
132 unsigned long long pgpgout;
133 unsigned long long pgfault;
134 unsigned long long pgmajfault;
136 unsigned long long inactive_anon;
137 unsigned long long active_anon;
138 unsigned long long inactive_file;
139 unsigned long long active_file;
140 unsigned long long unevictable;
141 unsigned long long hierarchical_memory_limit;
142 unsigned long long total_cache;
143 unsigned long long total_rss;
144 unsigned long long total_rss_huge;
145 unsigned long long total_mapped_file;
146 unsigned long long total_writeback;
147 unsigned long long total_dirty;
148 unsigned long long total_swap;
149 unsigned long long total_pgpgin;
150 unsigned long long total_pgpgout;
151 unsigned long long total_pgfault;
152 unsigned long long total_pgmajfault;
153 unsigned long long total_inactive_anon;
154 unsigned long long total_active_anon;
155 unsigned long long total_inactive_file;
156 unsigned long long total_active_file;
157 unsigned long long total_unevictable;
161 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
162 struct cpuacct_stat {
167 unsigned long long user;
168 unsigned long long system;
171 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
172 struct cpuacct_usage {
178 unsigned long long *cpu_percpu;
182 int available; // found in the filesystem
183 int 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 free(ca->cpu_percpu);
284 ca->cpu_percpu = malloc(sizeof(unsigned long long) * i);
286 fatal("Cannot allocate memory (%zu bytes)", sizeof(unsigned long long) * i);
291 for(i = 0; i < ca->cpus ;i++) {
292 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
293 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
300 void cgroup_read_blkio(struct blkio *io) {
301 static procfile *ff = NULL;
303 static uint32_t Read_hash = 0;
304 static uint32_t Write_hash = 0;
306 static uint32_t Sync_hash = 0;
307 static uint32_t Async_hash = 0;
308 static uint32_t Total_hash = 0;
311 if(unlikely(Read_hash == 0)) {
312 Read_hash = simple_hash("Read");
313 Write_hash = simple_hash("Write");
315 Sync_hash = simple_hash("Sync");
316 Async_hash = simple_hash("Async");
317 Total_hash = simple_hash("Total");
323 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
326 ff = procfile_readall(ff);
329 unsigned long i, lines = procfile_lines(ff);
332 error("File '%s' should have 1+ lines.", io->filename);
344 for(i = 0; i < lines ; i++) {
345 char *s = procfile_lineword(ff, i, 1);
346 uint32_t hash = simple_hash(s);
348 if(hash == Read_hash && !strcmp(s, "Read"))
349 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
351 else if(hash == Write_hash && !strcmp(s, "Write"))
352 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
355 else if(hash == Sync_hash && !strcmp(s, "Sync"))
356 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
358 else if(hash == Async_hash && !strcmp(s, "Async"))
359 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
361 else if(hash == Total_hash && !strcmp(s, "Total"))
362 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
367 // 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);
371 void cgroup_read_memory(struct memory *mem) {
372 static procfile *ff = NULL;
374 static uint32_t cache_hash = 0;
375 static uint32_t rss_hash = 0;
376 static uint32_t rss_huge_hash = 0;
377 static uint32_t mapped_file_hash = 0;
378 static uint32_t writeback_hash = 0;
379 static uint32_t dirty_hash = 0;
380 static uint32_t swap_hash = 0;
381 static uint32_t pgpgin_hash = 0;
382 static uint32_t pgpgout_hash = 0;
383 static uint32_t pgfault_hash = 0;
384 static uint32_t pgmajfault_hash = 0;
386 static uint32_t inactive_anon_hash = 0;
387 static uint32_t active_anon_hash = 0;
388 static uint32_t inactive_file_hash = 0;
389 static uint32_t active_file_hash = 0;
390 static uint32_t unevictable_hash = 0;
391 static uint32_t hierarchical_memory_limit_hash = 0;
392 static uint32_t total_cache_hash = 0;
393 static uint32_t total_rss_hash = 0;
394 static uint32_t total_rss_huge_hash = 0;
395 static uint32_t total_mapped_file_hash = 0;
396 static uint32_t total_writeback_hash = 0;
397 static uint32_t total_dirty_hash = 0;
398 static uint32_t total_swap_hash = 0;
399 static uint32_t total_pgpgin_hash = 0;
400 static uint32_t total_pgpgout_hash = 0;
401 static uint32_t total_pgfault_hash = 0;
402 static uint32_t total_pgmajfault_hash = 0;
403 static uint32_t total_inactive_anon_hash = 0;
404 static uint32_t total_active_anon_hash = 0;
405 static uint32_t total_inactive_file_hash = 0;
406 static uint32_t total_active_file_hash = 0;
407 static uint32_t total_unevictable_hash = 0;
409 if(unlikely(cache_hash == 0)) {
410 cache_hash = simple_hash("cache");
411 rss_hash = simple_hash("rss");
412 rss_huge_hash = simple_hash("rss_huge");
413 mapped_file_hash = simple_hash("mapped_file");
414 writeback_hash = simple_hash("writeback");
415 dirty_hash = simple_hash("dirty");
416 swap_hash = simple_hash("swap");
417 pgpgin_hash = simple_hash("pgpgin");
418 pgpgout_hash = simple_hash("pgpgout");
419 pgfault_hash = simple_hash("pgfault");
420 pgmajfault_hash = simple_hash("pgmajfault");
422 inactive_anon_hash = simple_hash("inactive_anon");
423 active_anon_hash = simple_hash("active_anon");
424 inactive_file_hash = simple_hash("inactive_file");
425 active_file_hash = simple_hash("active_file");
426 unevictable_hash = simple_hash("unevictable");
427 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
428 total_cache_hash = simple_hash("total_cache");
429 total_rss_hash = simple_hash("total_rss");
430 total_rss_huge_hash = simple_hash("total_rss_huge");
431 total_mapped_file_hash = simple_hash("total_mapped_file");
432 total_writeback_hash = simple_hash("total_writeback");
433 total_dirty_hash = simple_hash("total_dirty");
434 total_swap_hash = simple_hash("total_swap");
435 total_pgpgin_hash = simple_hash("total_pgpgin");
436 total_pgpgout_hash = simple_hash("total_pgpgout");
437 total_pgfault_hash = simple_hash("total_pgfault");
438 total_pgmajfault_hash = simple_hash("total_pgmajfault");
439 total_inactive_anon_hash = simple_hash("total_inactive_anon");
440 total_active_anon_hash = simple_hash("total_active_anon");
441 total_inactive_file_hash = simple_hash("total_inactive_file");
442 total_active_file_hash = simple_hash("total_active_file");
443 total_unevictable_hash = simple_hash("total_unevictable");
449 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
452 ff = procfile_readall(ff);
455 unsigned long i, lines = procfile_lines(ff);
458 error("File '%s' should have 1+ lines.", mem->filename);
462 for(i = 0; i < lines ; i++) {
463 char *s = procfile_lineword(ff, i, 0);
464 uint32_t hash = simple_hash(s);
466 if(hash == cache_hash && !strcmp(s, "cache"))
467 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
469 else if(hash == rss_hash && !strcmp(s, "rss"))
470 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
472 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
473 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
475 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
476 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
478 else if(hash == writeback_hash && !strcmp(s, "writeback"))
479 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
481 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
482 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
483 mem->has_dirty_swap = 1;
486 else if(hash == swap_hash && !strcmp(s, "swap")) {
487 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
488 mem->has_dirty_swap = 1;
491 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
492 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
494 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
495 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
497 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
498 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
500 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
501 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
504 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
505 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
507 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
508 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
510 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
511 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
513 else if(hash == active_file_hash && !strcmp(s, "active_file"))
514 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
516 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
517 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
519 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
520 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
522 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
523 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
525 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
526 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
528 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
529 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
531 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
532 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
534 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
535 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
537 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
538 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
540 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
541 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
543 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
544 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
546 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
547 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
549 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
550 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
552 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
553 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
555 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
556 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
558 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
559 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
561 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
562 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
564 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
565 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
567 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
568 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
572 // 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);
578 void cgroup_read(struct cgroup *cg) {
579 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
581 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
582 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
583 cgroup_read_memory(&cg->memory);
584 cgroup_read_blkio(&cg->io_service_bytes);
585 cgroup_read_blkio(&cg->io_serviced);
586 cgroup_read_blkio(&cg->throttle_io_service_bytes);
587 cgroup_read_blkio(&cg->throttle_io_serviced);
588 cgroup_read_blkio(&cg->io_merged);
589 cgroup_read_blkio(&cg->io_queued);
592 void read_all_cgroups(struct cgroup *root) {
593 debug(D_CGROUP, "reading metrics for all cgroups");
597 for(cg = root; cg ; cg = cg->next)
598 if(cg->enabled && cg->available)
602 // ----------------------------------------------------------------------------
603 // add/remove/find cgroup objects
605 #define CGROUP_CHARTID_LINE_MAX 1024
607 void cgroup_get_chart_id(struct cgroup *cg) {
608 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
611 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
613 snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
614 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
616 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
617 FILE *fp = mypopen(buffer, &cgroup_pid);
619 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
622 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
623 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
624 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
625 mypclose(fp, cgroup_pid);
626 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
628 if(s && *s && *s != '\n') {
629 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
633 free(cg->chart_title);
634 cg->chart_title = strdup(s);
636 fatal("CGROUP: Cannot allocate memory for chart name of cgroup '%s' chart name: '%s'", cg->id, s);
638 netdata_fix_chart_name(cg->chart_title);
641 cg->chart_id = strdup(s);
643 fatal("CGROUP: Cannot allocate memory for chart id of cgroup '%s' chart id: '%s'", cg->id, s);
645 netdata_fix_chart_id(cg->chart_id);
647 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
649 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
652 struct cgroup *cgroup_add(const char *id) {
653 debug(D_CGROUP, "adding cgroup '%s'", id);
655 if(cgroup_root_count >= cgroup_root_max) {
656 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
660 int def = cgroup_enable_new_cgroups_detected_at_runtime;
661 const char *chart_id = id;
665 // disable by default the root cgroup
667 debug(D_CGROUP, "cgroup '%s' is the root container (by default %s)", id, (def)?"enabled":"disabled");
670 if(*chart_id == '/') chart_id++;
672 size_t len = strlen(chart_id);
674 // disable by default the parent cgroup
675 // for known cgroup managers
676 if(!strcmp(chart_id, "lxc") ||
677 !strcmp(chart_id, "docker") ||
678 !strcmp(chart_id, "libvirt") ||
679 !strcmp(chart_id, "qemu") ||
680 !strcmp(chart_id, "systemd") ||
681 !strcmp(chart_id, "system.slice") ||
682 !strcmp(chart_id, "machine.slice") ||
683 !strcmp(chart_id, "init.scope") ||
684 !strcmp(chart_id, "user") ||
685 !strcmp(chart_id, "system") ||
686 !strcmp(chart_id, "machine") ||
688 (len > 6 && !strncmp(chart_id, "user/", 6)) ||
689 (len > 11 && !strncmp(chart_id, "user.slice/", 11)) ||
691 (len > 5 && !strncmp(&chart_id[len - 5], ".user", 5)) ||
692 (len > 5 && !strncmp(&chart_id[len - 5], ".swap", 5)) ||
693 (len > 6 && !strncmp(&chart_id[len - 6], ".slice", 6)) ||
694 (len > 6 && !strncmp(&chart_id[len - 6], ".mount", 6)) ||
695 (len > 8 && !strncmp(&chart_id[len - 8], ".session", 8)) ||
696 (len > 8 && !strncmp(&chart_id[len - 8], ".service", 8)) ||
697 (len > 10 && !strncmp(&chart_id[len - 10], ".partition", 10))
700 debug(D_CGROUP, "cgroup '%s' is %s (by default)", id, (def)?"enabled":"disabled");
704 struct cgroup *cg = calloc(1, sizeof(struct cgroup));
705 if(!cg) fatal("Cannot allocate memory for cgroup '%s'", id);
707 debug(D_CGROUP, "adding cgroup '%s'", id);
710 if(!cg->id) fatal("Cannot allocate memory for cgroup '%s'", id);
712 cg->hash = simple_hash(cg->id);
714 cg->chart_id = strdup(chart_id);
715 if(!cg->chart_id) fatal("Cannot allocate memory for cgroup '%s'", id);
717 cg->chart_title = strdup(chart_id);
718 if(!cg->chart_title) fatal("Cannot allocate memory for cgroup '%s'", id);
725 for(e = cgroup_root; e->next ;e = e->next) ;
731 // fix the name by calling the external script
732 cgroup_get_chart_id(cg);
734 char option[FILENAME_MAX + 1];
735 snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
736 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
738 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");
743 void cgroup_free(struct cgroup *cg) {
744 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");
746 free(cg->cpuacct_usage.cpu_percpu);
748 free(cg->cpuacct_stat.filename);
749 free(cg->cpuacct_usage.filename);
750 free(cg->memory.filename);
751 free(cg->io_service_bytes.filename);
752 free(cg->io_serviced.filename);
753 free(cg->throttle_io_service_bytes.filename);
754 free(cg->throttle_io_serviced.filename);
755 free(cg->io_merged.filename);
756 free(cg->io_queued.filename);
760 free(cg->chart_title);
766 // find if a given cgroup exists
767 struct cgroup *cgroup_find(const char *id) {
768 debug(D_CGROUP, "searching for cgroup '%s'", id);
770 uint32_t hash = simple_hash(id);
773 for(cg = cgroup_root; cg ; cg = cg->next) {
774 if(hash == cg->hash && strcmp(id, cg->id) == 0)
778 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
782 // ----------------------------------------------------------------------------
783 // detect running cgroups
785 // callback for find_file_in_subdirs()
786 void found_subdir_in_dir(const char *dir) {
787 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
789 struct cgroup *cg = cgroup_find(dir);
791 if(*dir && cgroup_max_depth > 0) {
795 for(s = dir; *s ;s++)
796 if(unlikely(*s == '/'))
799 if(depth > cgroup_max_depth) {
800 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
804 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
805 cg = cgroup_add(dir);
808 if(cg) cg->available = 1;
811 void find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
812 debug(D_CGROUP, "searching for directories in '%s'", base);
815 if(!this) this = base;
816 size_t dirlen = strlen(this), baselen = strlen(base);
817 const char *relative_path = &this[baselen];
819 DIR *dir = opendir(this);
822 callback(relative_path);
824 struct dirent *de = NULL;
825 while((de = readdir(dir))) {
826 if(de->d_type == DT_DIR
828 (de->d_name[0] == '.' && de->d_name[1] == '\0')
829 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
833 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
835 if(de->d_type == DT_DIR) {
837 const char *r = relative_path;
838 if(*r == '\0') r = "/";
839 else if (*r == '/') r++;
841 // we check for this option here
842 // so that the config will not have settings
843 // for leaf directories
844 char option[FILENAME_MAX + 1];
845 snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r);
846 option[FILENAME_MAX] = '\0';
847 enabled = config_get_boolean("plugin:cgroups", option, 1);
851 char *s = malloc(dirlen + strlen(de->d_name) + 2);
855 strcat(s, de->d_name);
856 find_dir_in_subdirs(base, s, callback);
866 void mark_all_cgroups_as_not_available() {
867 debug(D_CGROUP, "marking all cgroups as not available");
871 // mark all as not available
872 for(cg = cgroup_root; cg ; cg = cg->next)
876 void cleanup_all_cgroups() {
877 struct cgroup *cg = cgroup_root, *last = NULL;
883 cgroup_root = cg->next;
885 last->next = cg->next;
901 void find_all_cgroups() {
902 debug(D_CGROUP, "searching for cgroups");
904 mark_all_cgroups_as_not_available();
906 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage)
907 find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir);
909 if(cgroup_enable_blkio)
910 find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir);
912 if(cgroup_enable_memory)
913 find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir);
915 if(cgroup_enable_devices)
916 find_dir_in_subdirs(cgroup_devices_base, NULL, found_subdir_in_dir);
918 // remove any non-existing cgroups
919 cleanup_all_cgroups();
922 for(cg = cgroup_root; cg ; cg = cg->next) {
923 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
925 if(unlikely(!cg->available))
928 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
930 // check for newly added cgroups
931 // and update the filenames they read
932 char filename[FILENAME_MAX + 1];
933 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
934 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
935 cg->cpuacct_stat.filename = strdup(filename);
936 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
938 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
939 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
940 cg->cpuacct_usage.filename = strdup(filename);
941 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
943 if(cgroup_enable_memory && !cg->memory.filename) {
944 snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
945 cg->memory.filename = strdup(filename);
946 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
948 if(cgroup_enable_blkio) {
949 if(!cg->io_service_bytes.filename) {
950 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
951 cg->io_service_bytes.filename = strdup(filename);
952 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
954 if(!cg->io_serviced.filename) {
955 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
956 cg->io_serviced.filename = strdup(filename);
957 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
959 if(!cg->throttle_io_service_bytes.filename) {
960 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
961 cg->throttle_io_service_bytes.filename = strdup(filename);
962 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
964 if(!cg->throttle_io_serviced.filename) {
965 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
966 cg->throttle_io_serviced.filename = strdup(filename);
967 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
969 if(!cg->io_merged.filename) {
970 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
971 cg->io_merged.filename = strdup(filename);
972 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
974 if(!cg->io_queued.filename) {
975 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
976 cg->io_queued.filename = strdup(filename);
977 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
982 debug(D_CGROUP, "done searching for cgroups");
986 // ----------------------------------------------------------------------------
989 #define CHART_TITLE_MAX 300
991 void update_cgroup_charts(int update_every) {
992 debug(D_CGROUP, "updating cgroups charts");
994 char type[RRD_ID_LENGTH_MAX + 1];
995 char title[CHART_TITLE_MAX + 1];
1000 for(cg = cgroup_root; cg ; cg = cg->next) {
1001 if(!cg->available || !cg->enabled)
1004 if(cg->id[0] == '\0')
1005 strcpy(type, "cgroup_root");
1006 else if(cg->id[0] == '/')
1007 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1009 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1011 netdata_fix_chart_id(type);
1013 if(cg->cpuacct_stat.updated) {
1014 st = rrdset_find_bytype(type, "cpu");
1016 snprintfz(title, CHART_TITLE_MAX, "CPU Usage for cgroup %s", cg->chart_title);
1017 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
1019 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
1020 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
1022 else rrdset_next(st);
1024 rrddim_set(st, "user", cg->cpuacct_stat.user);
1025 rrddim_set(st, "system", cg->cpuacct_stat.system);
1029 if(cg->cpuacct_usage.updated) {
1030 char id[RRD_ID_LENGTH_MAX + 1];
1033 st = rrdset_find_bytype(type, "cpu_per_core");
1035 snprintfz(title, CHART_TITLE_MAX, "CPU Usage Per Core for cgroup %s", cg->chart_title);
1036 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
1038 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1039 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1040 rrddim_add(st, id, NULL, 100, 1000000, RRDDIM_INCREMENTAL);
1043 else rrdset_next(st);
1045 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1046 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1047 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1052 if(cg->memory.updated) {
1053 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1054 st = rrdset_find_bytype(type, "mem");
1056 snprintfz(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1057 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40200, update_every,
1058 RRDSET_TYPE_STACKED);
1060 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1061 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1062 if(cg->memory.has_dirty_swap)
1063 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1064 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1065 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1067 else rrdset_next(st);
1069 rrddim_set(st, "cache", cg->memory.cache);
1070 rrddim_set(st, "rss", cg->memory.rss);
1071 if(cg->memory.has_dirty_swap)
1072 rrddim_set(st, "swap", cg->memory.swap);
1073 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1074 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1078 st = rrdset_find_bytype(type, "writeback");
1080 snprintfz(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1081 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1082 update_every, RRDSET_TYPE_AREA);
1084 if(cg->memory.has_dirty_swap)
1085 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1086 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1088 else rrdset_next(st);
1090 if(cg->memory.has_dirty_swap)
1091 rrddim_set(st, "dirty", cg->memory.dirty);
1092 rrddim_set(st, "writeback", cg->memory.writeback);
1095 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1096 st = rrdset_find_bytype(type, "mem_activity");
1098 snprintfz(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1099 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1100 40400, update_every, RRDSET_TYPE_LINE);
1102 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1103 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1105 else rrdset_next(st);
1107 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1108 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1112 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1113 st = rrdset_find_bytype(type, "pgfaults");
1115 snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1116 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1117 update_every, RRDSET_TYPE_LINE);
1119 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1120 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1122 else rrdset_next(st);
1124 rrddim_set(st, "pgfault", cg->memory.pgfault);
1125 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1130 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1131 st = rrdset_find_bytype(type, "io");
1133 snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1134 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1135 update_every, RRDSET_TYPE_LINE);
1137 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1138 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1140 else rrdset_next(st);
1142 rrddim_set(st, "read", cg->io_service_bytes.Read);
1143 rrddim_set(st, "write", cg->io_service_bytes.Write);
1147 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1148 st = rrdset_find_bytype(type, "serviced_ops");
1150 snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1151 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1152 update_every, RRDSET_TYPE_LINE);
1154 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1155 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1157 else rrdset_next(st);
1159 rrddim_set(st, "read", cg->io_serviced.Read);
1160 rrddim_set(st, "write", cg->io_serviced.Write);
1164 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1165 st = rrdset_find_bytype(type, "io");
1167 snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1168 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1169 update_every, RRDSET_TYPE_LINE);
1171 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1172 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1174 else rrdset_next(st);
1176 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1177 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1182 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1183 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1185 snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1186 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1187 update_every, RRDSET_TYPE_LINE);
1189 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1190 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1192 else rrdset_next(st);
1194 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1195 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1199 if(cg->io_queued.updated) {
1200 st = rrdset_find_bytype(type, "queued_ops");
1202 snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1203 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1204 update_every, RRDSET_TYPE_LINE);
1206 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1207 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1209 else rrdset_next(st);
1211 rrddim_set(st, "read", cg->io_queued.Read);
1212 rrddim_set(st, "write", cg->io_queued.Write);
1216 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1217 st = rrdset_find_bytype(type, "merged_ops");
1219 snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1220 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1221 update_every, RRDSET_TYPE_LINE);
1223 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1224 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1226 else rrdset_next(st);
1228 rrddim_set(st, "read", cg->io_merged.Read);
1229 rrddim_set(st, "write", cg->io_merged.Write);
1234 debug(D_CGROUP, "done updating cgroups charts");
1237 // ----------------------------------------------------------------------------
1240 int do_sys_fs_cgroup(int update_every, unsigned long long dt) {
1241 static int cgroup_global_config_read = 0;
1242 static time_t last_run = 0;
1243 time_t now = time(NULL);
1247 if(unlikely(!cgroup_global_config_read)) {
1248 read_cgroup_plugin_configuration();
1249 cgroup_global_config_read = 1;
1252 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1257 read_all_cgroups(cgroup_root);
1258 update_cgroup_charts(update_every);
1263 void *cgroups_main(void *ptr)
1267 info("CGROUP Plugin thread created with task id %d", gettid());
1269 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1270 error("Cannot set pthread cancel type to DEFERRED.");
1272 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1273 error("Cannot set pthread cancel state to ENABLE.");
1275 struct rusage thread;
1277 // when ZERO, attempt to do it
1278 int vdo_sys_fs_cgroup = 0;
1279 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1281 // keep track of the time each module was called
1282 unsigned long long sutime_sys_fs_cgroup = 0ULL;
1284 // the next time we will run - aligned properly
1285 unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
1286 unsigned long long sunow;
1288 RRDSET *stcpu_thread = NULL;
1291 if(unlikely(netdata_exit)) break;
1293 // delay until it is our time to run
1294 while((sunow = timems()) < sunext)
1295 usecsleep(sunext - sunow);
1297 // find the next time we need to run
1298 while(timems() > sunext)
1299 sunext += rrd_update_every * 1000000ULL;
1301 if(unlikely(netdata_exit)) break;
1303 // BEGIN -- the job to be done
1305 if(!vdo_sys_fs_cgroup) {
1306 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1308 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1309 sutime_sys_fs_cgroup = sunow;
1311 if(unlikely(netdata_exit)) break;
1313 // END -- the job is done
1315 // --------------------------------------------------------------------
1317 if(!vdo_cpu_netdata) {
1318 getrusage(RUSAGE_THREAD, &thread);
1320 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1322 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);
1324 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1325 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1327 else rrdset_next(stcpu_thread);
1329 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1330 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1331 rrdset_done(stcpu_thread);