3 // ----------------------------------------------------------------------------
6 static int cgroup_enable_cpuacct_stat = CONFIG_ONDEMAND_ONDEMAND;
7 static int cgroup_enable_cpuacct_usage = CONFIG_ONDEMAND_ONDEMAND;
8 static int cgroup_enable_memory = CONFIG_ONDEMAND_ONDEMAND;
9 static int cgroup_enable_devices = CONFIG_ONDEMAND_ONDEMAND;
10 static int cgroup_enable_blkio = CONFIG_ONDEMAND_ONDEMAND;
11 static int cgroup_enable_new_cgroups_detected_at_runtime = 1;
12 static int cgroup_check_for_new_every = 10;
13 static char *cgroup_cpuacct_base = NULL;
14 static char *cgroup_blkio_base = NULL;
15 static char *cgroup_memory_base = NULL;
16 static char *cgroup_devices_base = NULL;
18 static int cgroup_root_count = 0;
19 static int cgroup_root_max = 500;
20 static int cgroup_max_depth = 0;
22 void read_cgroup_plugin_configuration() {
23 cgroup_check_for_new_every = config_get_number("plugin:cgroups", "check for new cgroups every", cgroup_check_for_new_every);
25 cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat", cgroup_enable_cpuacct_stat);
26 cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage", cgroup_enable_cpuacct_usage);
27 cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
28 cgroup_enable_blkio = config_get_boolean_ondemand("plugin:cgroups", "enable blkio", cgroup_enable_blkio);
30 char filename[FILENAME_MAX + 1], *s;
31 struct mountinfo *mi, *root = mountinfo_read();
33 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
34 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
36 error("Cannot find cgroup cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
37 s = "/sys/fs/cgroup/cpuacct";
39 else s = mi->mount_point;
40 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
41 cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
43 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
44 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
46 error("Cannot find cgroup blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
47 s = "/sys/fs/cgroup/blkio";
49 else s = mi->mount_point;
50 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
51 cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
53 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
54 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
56 error("Cannot find cgroup memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
57 s = "/sys/fs/cgroup/memory";
59 else s = mi->mount_point;
60 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
61 cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
63 mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices");
64 if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices");
66 error("Cannot find cgroup devices mountinfo. Assuming default: /sys/fs/cgroup/devices");
67 s = "/sys/fs/cgroup/devices";
69 else s = mi->mount_point;
70 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
71 cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename);
73 cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
74 cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
76 cgroup_enable_new_cgroups_detected_at_runtime = config_get_boolean("plugin:cgroups", "enable new cgroups detected at run time", cgroup_enable_new_cgroups_detected_at_runtime);
81 // ----------------------------------------------------------------------------
89 unsigned long long Read;
90 unsigned long long Write;
92 unsigned long long Sync;
93 unsigned long long Async;
94 unsigned long long Total;
98 // https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
106 unsigned long long cache;
107 unsigned long long rss;
108 unsigned long long rss_huge;
109 unsigned long long mapped_file;
110 unsigned long long writeback;
111 unsigned long long dirty;
112 unsigned long long swap;
113 unsigned long long pgpgin;
114 unsigned long long pgpgout;
115 unsigned long long pgfault;
116 unsigned long long pgmajfault;
118 unsigned long long inactive_anon;
119 unsigned long long active_anon;
120 unsigned long long inactive_file;
121 unsigned long long active_file;
122 unsigned long long unevictable;
123 unsigned long long hierarchical_memory_limit;
124 unsigned long long total_cache;
125 unsigned long long total_rss;
126 unsigned long long total_rss_huge;
127 unsigned long long total_mapped_file;
128 unsigned long long total_writeback;
129 unsigned long long total_dirty;
130 unsigned long long total_swap;
131 unsigned long long total_pgpgin;
132 unsigned long long total_pgpgout;
133 unsigned long long total_pgfault;
134 unsigned long long total_pgmajfault;
135 unsigned long long total_inactive_anon;
136 unsigned long long total_active_anon;
137 unsigned long long total_inactive_file;
138 unsigned long long total_active_file;
139 unsigned long long total_unevictable;
143 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
144 struct cpuacct_stat {
149 unsigned long long user;
150 unsigned long long system;
153 // https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
154 struct cpuacct_usage {
160 unsigned long long *cpu_percpu;
163 #define CGROUP_OPTIONS_DISABLED_DUPLICATE 0x00000001
168 char available; // found in the filesystem
169 char 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 freez(ca->cpu_percpu);
271 ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i);
272 ca->cpus = (unsigned int)i;
275 for(i = 0; i < ca->cpus ;i++) {
276 ca->cpu_percpu[i] = strtoull(procfile_lineword(ff, 0, i), NULL, 10);
277 // fprintf(stderr, "READ '%s': cpu%d/%d: %llu ('%s')\n", ca->filename, i, ca->cpus, ca->cpu_percpu[i], procfile_lineword(ff, 0, i));
284 void cgroup_read_blkio(struct blkio *io) {
285 static procfile *ff = NULL;
287 static uint32_t Read_hash = 0;
288 static uint32_t Write_hash = 0;
290 static uint32_t Sync_hash = 0;
291 static uint32_t Async_hash = 0;
292 static uint32_t Total_hash = 0;
295 if(unlikely(Read_hash == 0)) {
296 Read_hash = simple_hash("Read");
297 Write_hash = simple_hash("Write");
299 Sync_hash = simple_hash("Sync");
300 Async_hash = simple_hash("Async");
301 Total_hash = simple_hash("Total");
307 ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
310 ff = procfile_readall(ff);
313 unsigned long i, lines = procfile_lines(ff);
316 error("File '%s' should have 1+ lines.", io->filename);
328 for(i = 0; i < lines ; i++) {
329 char *s = procfile_lineword(ff, i, 1);
330 uint32_t hash = simple_hash(s);
332 if(hash == Read_hash && !strcmp(s, "Read"))
333 io->Read += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
335 else if(hash == Write_hash && !strcmp(s, "Write"))
336 io->Write += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
339 else if(hash == Sync_hash && !strcmp(s, "Sync"))
340 io->Sync += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
342 else if(hash == Async_hash && !strcmp(s, "Async"))
343 io->Async += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
345 else if(hash == Total_hash && !strcmp(s, "Total"))
346 io->Total += strtoull(procfile_lineword(ff, i, 2), NULL, 10);
351 // 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);
355 void cgroup_read_memory(struct memory *mem) {
356 static procfile *ff = NULL;
358 static uint32_t cache_hash = 0;
359 static uint32_t rss_hash = 0;
360 static uint32_t rss_huge_hash = 0;
361 static uint32_t mapped_file_hash = 0;
362 static uint32_t writeback_hash = 0;
363 static uint32_t dirty_hash = 0;
364 static uint32_t swap_hash = 0;
365 static uint32_t pgpgin_hash = 0;
366 static uint32_t pgpgout_hash = 0;
367 static uint32_t pgfault_hash = 0;
368 static uint32_t pgmajfault_hash = 0;
370 static uint32_t inactive_anon_hash = 0;
371 static uint32_t active_anon_hash = 0;
372 static uint32_t inactive_file_hash = 0;
373 static uint32_t active_file_hash = 0;
374 static uint32_t unevictable_hash = 0;
375 static uint32_t hierarchical_memory_limit_hash = 0;
376 static uint32_t total_cache_hash = 0;
377 static uint32_t total_rss_hash = 0;
378 static uint32_t total_rss_huge_hash = 0;
379 static uint32_t total_mapped_file_hash = 0;
380 static uint32_t total_writeback_hash = 0;
381 static uint32_t total_dirty_hash = 0;
382 static uint32_t total_swap_hash = 0;
383 static uint32_t total_pgpgin_hash = 0;
384 static uint32_t total_pgpgout_hash = 0;
385 static uint32_t total_pgfault_hash = 0;
386 static uint32_t total_pgmajfault_hash = 0;
387 static uint32_t total_inactive_anon_hash = 0;
388 static uint32_t total_active_anon_hash = 0;
389 static uint32_t total_inactive_file_hash = 0;
390 static uint32_t total_active_file_hash = 0;
391 static uint32_t total_unevictable_hash = 0;
393 if(unlikely(cache_hash == 0)) {
394 cache_hash = simple_hash("cache");
395 rss_hash = simple_hash("rss");
396 rss_huge_hash = simple_hash("rss_huge");
397 mapped_file_hash = simple_hash("mapped_file");
398 writeback_hash = simple_hash("writeback");
399 dirty_hash = simple_hash("dirty");
400 swap_hash = simple_hash("swap");
401 pgpgin_hash = simple_hash("pgpgin");
402 pgpgout_hash = simple_hash("pgpgout");
403 pgfault_hash = simple_hash("pgfault");
404 pgmajfault_hash = simple_hash("pgmajfault");
406 inactive_anon_hash = simple_hash("inactive_anon");
407 active_anon_hash = simple_hash("active_anon");
408 inactive_file_hash = simple_hash("inactive_file");
409 active_file_hash = simple_hash("active_file");
410 unevictable_hash = simple_hash("unevictable");
411 hierarchical_memory_limit_hash = simple_hash("hierarchical_memory_limit");
412 total_cache_hash = simple_hash("total_cache");
413 total_rss_hash = simple_hash("total_rss");
414 total_rss_huge_hash = simple_hash("total_rss_huge");
415 total_mapped_file_hash = simple_hash("total_mapped_file");
416 total_writeback_hash = simple_hash("total_writeback");
417 total_dirty_hash = simple_hash("total_dirty");
418 total_swap_hash = simple_hash("total_swap");
419 total_pgpgin_hash = simple_hash("total_pgpgin");
420 total_pgpgout_hash = simple_hash("total_pgpgout");
421 total_pgfault_hash = simple_hash("total_pgfault");
422 total_pgmajfault_hash = simple_hash("total_pgmajfault");
423 total_inactive_anon_hash = simple_hash("total_inactive_anon");
424 total_active_anon_hash = simple_hash("total_active_anon");
425 total_inactive_file_hash = simple_hash("total_inactive_file");
426 total_active_file_hash = simple_hash("total_active_file");
427 total_unevictable_hash = simple_hash("total_unevictable");
433 ff = procfile_reopen(ff, mem->filename, NULL, PROCFILE_FLAG_DEFAULT);
436 ff = procfile_readall(ff);
439 unsigned long i, lines = procfile_lines(ff);
442 error("File '%s' should have 1+ lines.", mem->filename);
446 for(i = 0; i < lines ; i++) {
447 char *s = procfile_lineword(ff, i, 0);
448 uint32_t hash = simple_hash(s);
450 if(hash == cache_hash && !strcmp(s, "cache"))
451 mem->cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
453 else if(hash == rss_hash && !strcmp(s, "rss"))
454 mem->rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
456 else if(hash == rss_huge_hash && !strcmp(s, "rss_huge"))
457 mem->rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
459 else if(hash == mapped_file_hash && !strcmp(s, "mapped_file"))
460 mem->mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
462 else if(hash == writeback_hash && !strcmp(s, "writeback"))
463 mem->writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
465 else if(hash == dirty_hash && !strcmp(s, "dirty")) {
466 mem->dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
467 mem->has_dirty_swap = 1;
470 else if(hash == swap_hash && !strcmp(s, "swap")) {
471 mem->swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
472 mem->has_dirty_swap = 1;
475 else if(hash == pgpgin_hash && !strcmp(s, "pgpgin"))
476 mem->pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
478 else if(hash == pgpgout_hash && !strcmp(s, "pgpgout"))
479 mem->pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
481 else if(hash == pgfault_hash && !strcmp(s, "pgfault"))
482 mem->pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
484 else if(hash == pgmajfault_hash && !strcmp(s, "pgmajfault"))
485 mem->pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
488 else if(hash == inactive_anon_hash && !strcmp(s, "inactive_anon"))
489 mem->inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
491 else if(hash == active_anon_hash && !strcmp(s, "active_anon"))
492 mem->active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
494 else if(hash == inactive_file_hash && !strcmp(s, "inactive_file"))
495 mem->inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
497 else if(hash == active_file_hash && !strcmp(s, "active_file"))
498 mem->active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
500 else if(hash == unevictable_hash && !strcmp(s, "unevictable"))
501 mem->unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
503 else if(hash == hierarchical_memory_limit_hash && !strcmp(s, "hierarchical_memory_limit"))
504 mem->hierarchical_memory_limit = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
506 else if(hash == total_cache_hash && !strcmp(s, "total_cache"))
507 mem->total_cache = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
509 else if(hash == total_rss_hash && !strcmp(s, "total_rss"))
510 mem->total_rss = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
512 else if(hash == total_rss_huge_hash && !strcmp(s, "total_rss_huge"))
513 mem->total_rss_huge = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
515 else if(hash == total_mapped_file_hash && !strcmp(s, "total_mapped_file"))
516 mem->total_mapped_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
518 else if(hash == total_writeback_hash && !strcmp(s, "total_writeback"))
519 mem->total_writeback = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
521 else if(hash == total_dirty_hash && !strcmp(s, "total_dirty"))
522 mem->total_dirty = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
524 else if(hash == total_swap_hash && !strcmp(s, "total_swap"))
525 mem->total_swap = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
527 else if(hash == total_pgpgin_hash && !strcmp(s, "total_pgpgin"))
528 mem->total_pgpgin = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
530 else if(hash == total_pgpgout_hash && !strcmp(s, "total_pgpgout"))
531 mem->total_pgpgout = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
533 else if(hash == total_pgfault_hash && !strcmp(s, "total_pgfault"))
534 mem->total_pgfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
536 else if(hash == total_pgmajfault_hash && !strcmp(s, "total_pgmajfault"))
537 mem->total_pgmajfault = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
539 else if(hash == total_inactive_anon_hash && !strcmp(s, "total_inactive_anon"))
540 mem->total_inactive_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
542 else if(hash == total_active_anon_hash && !strcmp(s, "total_active_anon"))
543 mem->total_active_anon = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
545 else if(hash == total_inactive_file_hash && !strcmp(s, "total_inactive_file"))
546 mem->total_inactive_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
548 else if(hash == total_active_file_hash && !strcmp(s, "total_active_file"))
549 mem->total_active_file = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
551 else if(hash == total_unevictable_hash && !strcmp(s, "total_unevictable"))
552 mem->total_unevictable = strtoull(procfile_lineword(ff, i, 1), NULL, 10);
556 // 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);
562 void cgroup_read(struct cgroup *cg) {
563 debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
565 cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
566 cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
567 cgroup_read_memory(&cg->memory);
568 cgroup_read_blkio(&cg->io_service_bytes);
569 cgroup_read_blkio(&cg->io_serviced);
570 cgroup_read_blkio(&cg->throttle_io_service_bytes);
571 cgroup_read_blkio(&cg->throttle_io_serviced);
572 cgroup_read_blkio(&cg->io_merged);
573 cgroup_read_blkio(&cg->io_queued);
576 void read_all_cgroups(struct cgroup *root) {
577 debug(D_CGROUP, "reading metrics for all cgroups");
581 for(cg = root; cg ; cg = cg->next)
582 if(cg->enabled && cg->available)
586 // ----------------------------------------------------------------------------
587 // add/remove/find cgroup objects
589 #define CGROUP_CHARTID_LINE_MAX 1024
591 void cgroup_get_chart_id(struct cgroup *cg) {
592 debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
595 char buffer[CGROUP_CHARTID_LINE_MAX + 1];
597 snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
598 config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
600 debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
601 FILE *fp = mypopen(buffer, &cgroup_pid);
603 error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
606 debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
607 char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
608 debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
609 mypclose(fp, cgroup_pid);
610 debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
612 if(s && *s && *s != '\n') {
613 debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
617 freez(cg->chart_title);
618 cg->chart_title = strdupz(s);
619 netdata_fix_chart_name(cg->chart_title);
622 cg->chart_id = strdupz(s);
623 netdata_fix_chart_id(cg->chart_id);
624 cg->hash_chart = simple_hash(cg->chart_id);
626 debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
628 else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
631 struct cgroup *cgroup_add(const char *id) {
632 debug(D_CGROUP, "adding cgroup '%s'", id);
634 if(cgroup_root_count >= cgroup_root_max) {
635 info("Maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id);
639 int def = cgroup_enable_new_cgroups_detected_at_runtime;
640 const char *chart_id = id;
644 // disable by default the root cgroup
646 debug(D_CGROUP, "cgroup '%s' is the root container (by default %s)", id, (def)?"enabled":"disabled");
649 if(*chart_id == '/') chart_id++;
651 size_t len = strlen(chart_id);
653 // disable by default the parent cgroup
654 // for known cgroup managers
655 if(!strcmp(chart_id, "lxc") ||
656 !strcmp(chart_id, "docker") ||
657 !strcmp(chart_id, "libvirt") ||
658 !strcmp(chart_id, "qemu") ||
659 !strcmp(chart_id, "systemd") ||
660 !strcmp(chart_id, "system.slice") ||
661 !strcmp(chart_id, "machine.slice") ||
662 !strcmp(chart_id, "init.scope") ||
663 !strcmp(chart_id, "user") ||
664 !strcmp(chart_id, "system") ||
665 !strcmp(chart_id, "machine") ||
667 (len > 6 && !strncmp(chart_id, "user/", 6)) ||
668 (len > 11 && !strncmp(chart_id, "user.slice/", 11)) ||
670 (len > 5 && !strncmp(&chart_id[len - 5], ".user", 5)) ||
671 (len > 5 && !strncmp(&chart_id[len - 5], ".swap", 5)) ||
672 (len > 6 && !strncmp(&chart_id[len - 6], ".slice", 6)) ||
673 (len > 6 && !strncmp(&chart_id[len - 6], ".mount", 6)) ||
674 (len > 8 && !strncmp(&chart_id[len - 8], ".session", 8)) ||
675 (len > 8 && !strncmp(&chart_id[len - 8], ".service", 8)) ||
676 (len > 10 && !strncmp(&chart_id[len - 10], ".partition", 10))
679 debug(D_CGROUP, "cgroup '%s' is %s (by default)", id, (def)?"enabled":"disabled");
683 struct cgroup *cg = callocz(1, sizeof(struct cgroup));
685 cg->id = strdupz(id);
686 cg->hash = simple_hash(cg->id);
688 cg->chart_id = strdupz(chart_id);
689 netdata_fix_chart_id(cg->chart_id);
690 cg->hash_chart = simple_hash(cg->chart_id);
692 cg->chart_title = strdupz(chart_id);
699 for(e = cgroup_root; e->next ;e = e->next) ;
705 // fix the name by calling the external script
706 cgroup_get_chart_id(cg);
708 debug(D_CGROUP, "adding cgroup '%s' with chart id '%s'", id, chart_id);
710 char option[FILENAME_MAX + 1];
711 snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title);
712 cg->enabled = config_get_boolean("plugin:cgroups", option, def);
716 for (t = cgroup_root; t; t = t->next) {
717 if (t != cg && t->enabled && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) {
718 if (!strncmp(t->chart_id, "/system.slice/", 14) && !strncmp(cg->chart_id, "/init.scope/system.slice/", 25)) {
719 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'.",
720 cg->chart_id, t->id, cg->id, t->id);
721 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'.",
722 cg->chart_id, t->id, cg->id, t->id);
724 t->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE;
727 error("Control group with chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.",
728 cg->chart_id, t->id, cg->id);
729 debug(D_CGROUP, "Control group with chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.",
730 cg->chart_id, t->id, cg->id);
732 cg->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE;
740 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");
745 void cgroup_free(struct cgroup *cg) {
746 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");
748 freez(cg->cpuacct_usage.cpu_percpu);
750 freez(cg->cpuacct_stat.filename);
751 freez(cg->cpuacct_usage.filename);
752 freez(cg->memory.filename);
753 freez(cg->io_service_bytes.filename);
754 freez(cg->io_serviced.filename);
755 freez(cg->throttle_io_service_bytes.filename);
756 freez(cg->throttle_io_serviced.filename);
757 freez(cg->io_merged.filename);
758 freez(cg->io_queued.filename);
762 freez(cg->chart_title);
768 // find if a given cgroup exists
769 struct cgroup *cgroup_find(const char *id) {
770 debug(D_CGROUP, "searching for cgroup '%s'", id);
772 uint32_t hash = simple_hash(id);
775 for(cg = cgroup_root; cg ; cg = cg->next) {
776 if(hash == cg->hash && strcmp(id, cg->id) == 0)
780 debug(D_CGROUP, "cgroup_find('%s') %s", id, (cg)?"found":"not found");
784 // ----------------------------------------------------------------------------
785 // detect running cgroups
787 // callback for find_file_in_subdirs()
788 void found_subdir_in_dir(const char *dir) {
789 debug(D_CGROUP, "examining cgroup dir '%s'", dir);
791 struct cgroup *cg = cgroup_find(dir);
793 if(*dir && cgroup_max_depth > 0) {
797 for(s = dir; *s ;s++)
798 if(unlikely(*s == '/'))
801 if(depth > cgroup_max_depth) {
802 info("cgroup '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
806 debug(D_CGROUP, "will add dir '%s' as cgroup", dir);
807 cg = cgroup_add(dir);
810 if(cg) cg->available = 1;
813 int find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
814 debug(D_CGROUP, "searching for directories in '%s'", base);
818 if(!this) this = base;
819 size_t dirlen = strlen(this), baselen = strlen(base);
820 const char *relative_path = &this[baselen];
822 DIR *dir = opendir(this);
824 error("Cannot read cgroups directory '%s'", base);
829 callback(relative_path);
831 struct dirent *de = NULL;
832 while((de = readdir(dir))) {
833 if(de->d_type == DT_DIR
835 (de->d_name[0] == '.' && de->d_name[1] == '\0')
836 || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
840 debug(D_CGROUP, "examining '%s/%s'", this, de->d_name);
842 if(de->d_type == DT_DIR) {
844 const char *r = relative_path;
845 if(*r == '\0') r = "/";
846 else if (*r == '/') r++;
848 // we check for this option here
849 // so that the config will not have settings
850 // for leaf directories
851 char option[FILENAME_MAX + 1];
852 snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r);
853 option[FILENAME_MAX] = '\0';
854 enabled = config_get_boolean("plugin:cgroups", option, 1);
858 char *s = mallocz(dirlen + strlen(de->d_name) + 2);
861 strcat(s, de->d_name);
862 int ret2 = find_dir_in_subdirs(base, s, callback);
863 if(ret2 > 0) ret += ret2;
873 void mark_all_cgroups_as_not_available() {
874 debug(D_CGROUP, "marking all cgroups as not available");
878 // mark all as not available
879 for(cg = cgroup_root; cg ; cg = cg->next) {
884 void cleanup_all_cgroups() {
885 struct cgroup *cg = cgroup_root, *last = NULL;
889 // enable the first duplicate cgroup
892 for(t = cgroup_root; t ; t = t->next) {
893 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)) {
894 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);
896 t->options &= ~CGROUP_OPTIONS_DISABLED_DUPLICATE;
903 cgroup_root = cg->next;
905 last->next = cg->next;
921 void find_all_cgroups() {
922 debug(D_CGROUP, "searching for cgroups");
924 mark_all_cgroups_as_not_available();
926 if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage) {
927 if (find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir) == -1) {
928 cgroup_enable_cpuacct_stat = cgroup_enable_cpuacct_usage = 0;
929 error("disabled cgroup cpu statistics.");
933 if(cgroup_enable_blkio) {
934 if (find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir) == -1) {
935 cgroup_enable_blkio = 0;
936 error("disabled cgroup blkio statistics.");
940 if(cgroup_enable_memory) {
941 if(find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir) == -1) {
942 cgroup_enable_memory = 0;
943 error("disabled cgroup memory statistics.");
947 if(cgroup_enable_devices) {
948 if(find_dir_in_subdirs(cgroup_devices_base, NULL, found_subdir_in_dir) == -1) {
949 cgroup_enable_devices = 0;
950 error("disabled cgroup devices statistics.");
954 // remove any non-existing cgroups
955 cleanup_all_cgroups();
959 for(cg = cgroup_root; cg ; cg = cg->next) {
960 // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name);
962 if(unlikely(!cg->available))
965 debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
967 // check for newly added cgroups
968 // and update the filenames they read
969 char filename[FILENAME_MAX + 1];
970 if(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename) {
971 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
972 if(stat(filename, &buf) != -1) {
973 cg->cpuacct_stat.filename = strdupz(filename);
974 debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
976 else debug(D_CGROUP, "cpuacct.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
978 if(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename) {
979 snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
980 if(stat(filename, &buf) != -1) {
981 cg->cpuacct_usage.filename = strdupz(filename);
982 debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
984 else debug(D_CGROUP, "cpuacct.usage_percpu file for cgroup '%s': '%s' does not exist.", cg->id, filename);
986 if(cgroup_enable_memory && !cg->memory.filename) {
987 snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
988 if(stat(filename, &buf) != -1) {
989 cg->memory.filename = strdupz(filename);
990 debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename);
992 else debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
994 if(cgroup_enable_blkio) {
995 if(!cg->io_service_bytes.filename) {
996 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
997 if(stat(filename, &buf) != -1) {
998 cg->io_service_bytes.filename = strdupz(filename);
999 debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
1001 else debug(D_CGROUP, "io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1003 if(!cg->io_serviced.filename) {
1004 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
1005 if(stat(filename, &buf) != -1) {
1006 cg->io_serviced.filename = strdupz(filename);
1007 debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
1009 else debug(D_CGROUP, "io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1011 if(!cg->throttle_io_service_bytes.filename) {
1012 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
1013 if(stat(filename, &buf) != -1) {
1014 cg->throttle_io_service_bytes.filename = strdupz(filename);
1015 debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
1017 else debug(D_CGROUP, "throttle_io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1019 if(!cg->throttle_io_serviced.filename) {
1020 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
1021 if(stat(filename, &buf) != -1) {
1022 cg->throttle_io_serviced.filename = strdupz(filename);
1023 debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
1025 else debug(D_CGROUP, "throttle_io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1027 if(!cg->io_merged.filename) {
1028 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
1029 if(stat(filename, &buf) != -1) {
1030 cg->io_merged.filename = strdupz(filename);
1031 debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
1033 else debug(D_CGROUP, "io_merged file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1035 if(!cg->io_queued.filename) {
1036 snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
1037 if(stat(filename, &buf) != -1) {
1038 cg->io_queued.filename = strdupz(filename);
1039 debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
1041 else debug(D_CGROUP, "io_queued file for cgroup '%s': '%s' does not exist.", cg->id, filename);
1046 debug(D_CGROUP, "done searching for cgroups");
1050 // ----------------------------------------------------------------------------
1053 #define CHART_TITLE_MAX 300
1055 void update_cgroup_charts(int update_every) {
1056 debug(D_CGROUP, "updating cgroups charts");
1058 char type[RRD_ID_LENGTH_MAX + 1];
1059 char title[CHART_TITLE_MAX + 1];
1064 for(cg = cgroup_root; cg ; cg = cg->next) {
1065 if(!cg->available || !cg->enabled)
1068 if(cg->id[0] == '\0')
1069 strcpy(type, "cgroup_root");
1070 else if(cg->id[0] == '/')
1071 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1073 snprintfz(type, RRD_ID_LENGTH_MAX, "cgroup_%s", cg->chart_id);
1075 netdata_fix_chart_id(type);
1077 if(cg->cpuacct_stat.updated) {
1078 st = rrdset_find_bytype(type, "cpu");
1080 snprintfz(title, CHART_TITLE_MAX, "CPU Usage (%d%% = %d core%s) for cgroup %s", (processors * 100), processors, (processors>1)?"s":"", cg->chart_title);
1081 st = rrdset_create(type, "cpu", NULL, "cpu", "cgroup.cpu", title, "%", 40000, update_every, RRDSET_TYPE_STACKED);
1083 rrddim_add(st, "user", NULL, 100, hz, RRDDIM_INCREMENTAL);
1084 rrddim_add(st, "system", NULL, 100, hz, RRDDIM_INCREMENTAL);
1086 else rrdset_next(st);
1088 rrddim_set(st, "user", cg->cpuacct_stat.user);
1089 rrddim_set(st, "system", cg->cpuacct_stat.system);
1093 if(cg->cpuacct_usage.updated) {
1094 char id[RRD_ID_LENGTH_MAX + 1];
1097 st = rrdset_find_bytype(type, "cpu_per_core");
1099 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);
1100 st = rrdset_create(type, "cpu_per_core", NULL, "cpu", "cgroup.cpu_per_core", title, "%", 40100, update_every, RRDSET_TYPE_STACKED);
1102 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1103 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1104 rrddim_add(st, id, NULL, 100, 1000000000, RRDDIM_INCREMENTAL);
1107 else rrdset_next(st);
1109 for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
1110 snprintfz(id, CHART_TITLE_MAX, "cpu%u", i);
1111 rrddim_set(st, id, cg->cpuacct_usage.cpu_percpu[i]);
1116 if(cg->memory.updated) {
1117 if(cg->memory.cache + cg->memory.rss + cg->memory.rss_huge + cg->memory.mapped_file > 0) {
1118 st = rrdset_find_bytype(type, "mem");
1120 snprintfz(title, CHART_TITLE_MAX, "Memory Usage for cgroup %s", cg->chart_title);
1121 st = rrdset_create(type, "mem", NULL, "mem", "cgroup.mem", title, "MB", 40200, update_every,
1122 RRDSET_TYPE_STACKED);
1124 rrddim_add(st, "cache", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1125 rrddim_add(st, "rss", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1126 if(cg->memory.has_dirty_swap)
1127 rrddim_add(st, "swap", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1128 rrddim_add(st, "rss_huge", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1129 rrddim_add(st, "mapped_file", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1131 else rrdset_next(st);
1133 rrddim_set(st, "cache", cg->memory.cache);
1134 rrddim_set(st, "rss", cg->memory.rss);
1135 if(cg->memory.has_dirty_swap)
1136 rrddim_set(st, "swap", cg->memory.swap);
1137 rrddim_set(st, "rss_huge", cg->memory.rss_huge);
1138 rrddim_set(st, "mapped_file", cg->memory.mapped_file);
1142 st = rrdset_find_bytype(type, "writeback");
1144 snprintfz(title, CHART_TITLE_MAX, "Writeback Memory for cgroup %s", cg->chart_title);
1145 st = rrdset_create(type, "writeback", NULL, "mem", "cgroup.writeback", title, "MB", 40300,
1146 update_every, RRDSET_TYPE_AREA);
1148 if(cg->memory.has_dirty_swap)
1149 rrddim_add(st, "dirty", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1150 rrddim_add(st, "writeback", NULL, 1, 1024 * 1024, RRDDIM_ABSOLUTE);
1152 else rrdset_next(st);
1154 if(cg->memory.has_dirty_swap)
1155 rrddim_set(st, "dirty", cg->memory.dirty);
1156 rrddim_set(st, "writeback", cg->memory.writeback);
1159 if(cg->memory.pgpgin + cg->memory.pgpgout > 0) {
1160 st = rrdset_find_bytype(type, "mem_activity");
1162 snprintfz(title, CHART_TITLE_MAX, "Memory Activity for cgroup %s", cg->chart_title);
1163 st = rrdset_create(type, "mem_activity", NULL, "mem", "cgroup.mem_activity", title, "MB/s",
1164 40400, update_every, RRDSET_TYPE_LINE);
1166 rrddim_add(st, "pgpgin", "in", sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1167 rrddim_add(st, "pgpgout", "out", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1169 else rrdset_next(st);
1171 rrddim_set(st, "pgpgin", cg->memory.pgpgin);
1172 rrddim_set(st, "pgpgout", cg->memory.pgpgout);
1176 if(cg->memory.pgfault + cg->memory.pgmajfault > 0) {
1177 st = rrdset_find_bytype(type, "pgfaults");
1179 snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults for cgroup %s", cg->chart_title);
1180 st = rrdset_create(type, "pgfaults", NULL, "mem", "cgroup.pgfaults", title, "MB/s", 40500,
1181 update_every, RRDSET_TYPE_LINE);
1183 rrddim_add(st, "pgfault", NULL, sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1184 rrddim_add(st, "pgmajfault", "swap", -sysconf(_SC_PAGESIZE), 1024 * 1024, RRDDIM_INCREMENTAL);
1186 else rrdset_next(st);
1188 rrddim_set(st, "pgfault", cg->memory.pgfault);
1189 rrddim_set(st, "pgmajfault", cg->memory.pgmajfault);
1194 if(cg->io_service_bytes.updated && cg->io_service_bytes.Read + cg->io_service_bytes.Write > 0) {
1195 st = rrdset_find_bytype(type, "io");
1197 snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1198 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1199 update_every, RRDSET_TYPE_LINE);
1201 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1202 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1204 else rrdset_next(st);
1206 rrddim_set(st, "read", cg->io_service_bytes.Read);
1207 rrddim_set(st, "write", cg->io_service_bytes.Write);
1211 if(cg->io_serviced.updated && cg->io_serviced.Read + cg->io_serviced.Write > 0) {
1212 st = rrdset_find_bytype(type, "serviced_ops");
1214 snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1215 st = rrdset_create(type, "serviced_ops", NULL, "disk", "cgroup.serviced_ops", title, "operations/s", 41200,
1216 update_every, RRDSET_TYPE_LINE);
1218 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1219 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1221 else rrdset_next(st);
1223 rrddim_set(st, "read", cg->io_serviced.Read);
1224 rrddim_set(st, "write", cg->io_serviced.Write);
1228 if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.Read + cg->throttle_io_service_bytes.Write > 0) {
1229 st = rrdset_find_bytype(type, "io");
1231 snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks) for cgroup %s", cg->chart_title);
1232 st = rrdset_create(type, "io", NULL, "disk", "cgroup.io", title, "KB/s", 41200,
1233 update_every, RRDSET_TYPE_LINE);
1235 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1236 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1238 else rrdset_next(st);
1240 rrddim_set(st, "read", cg->throttle_io_service_bytes.Read);
1241 rrddim_set(st, "write", cg->throttle_io_service_bytes.Write);
1246 if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.Read + cg->throttle_io_serviced.Write > 0) {
1247 st = rrdset_find_bytype(type, "throttle_serviced_ops");
1249 snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks) for cgroup %s", cg->chart_title);
1250 st = rrdset_create(type, "throttle_serviced_ops", NULL, "disk", "cgroup.throttle_serviced_ops", title, "operations/s", 41200,
1251 update_every, RRDSET_TYPE_LINE);
1253 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_INCREMENTAL);
1254 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_INCREMENTAL);
1256 else rrdset_next(st);
1258 rrddim_set(st, "read", cg->throttle_io_serviced.Read);
1259 rrddim_set(st, "write", cg->throttle_io_serviced.Write);
1263 if(cg->io_queued.updated) {
1264 st = rrdset_find_bytype(type, "queued_ops");
1266 snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks) for cgroup %s", cg->chart_title);
1267 st = rrdset_create(type, "queued_ops", NULL, "disk", "cgroup.queued_ops", title, "operations", 42000,
1268 update_every, RRDSET_TYPE_LINE);
1270 rrddim_add(st, "read", NULL, 1, 1, RRDDIM_ABSOLUTE);
1271 rrddim_add(st, "write", NULL, -1, 1, RRDDIM_ABSOLUTE);
1273 else rrdset_next(st);
1275 rrddim_set(st, "read", cg->io_queued.Read);
1276 rrddim_set(st, "write", cg->io_queued.Write);
1280 if(cg->io_merged.updated && cg->io_merged.Read + cg->io_merged.Write > 0) {
1281 st = rrdset_find_bytype(type, "merged_ops");
1283 snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks) for cgroup %s", cg->chart_title);
1284 st = rrdset_create(type, "merged_ops", NULL, "disk", "cgroup.merged_ops", title, "operations/s", 42100,
1285 update_every, RRDSET_TYPE_LINE);
1287 rrddim_add(st, "read", NULL, 1, 1024, RRDDIM_INCREMENTAL);
1288 rrddim_add(st, "write", NULL, -1, 1024, RRDDIM_INCREMENTAL);
1290 else rrdset_next(st);
1292 rrddim_set(st, "read", cg->io_merged.Read);
1293 rrddim_set(st, "write", cg->io_merged.Write);
1298 debug(D_CGROUP, "done updating cgroups charts");
1301 // ----------------------------------------------------------------------------
1304 int do_sys_fs_cgroup(int update_every, unsigned long long dt) {
1307 static int cgroup_global_config_read = 0;
1308 static time_t last_run = 0;
1309 time_t now = time(NULL);
1311 if(unlikely(!cgroup_global_config_read)) {
1312 read_cgroup_plugin_configuration();
1313 cgroup_global_config_read = 1;
1316 if(unlikely(cgroup_enable_new_cgroups_detected_at_runtime && now - last_run > cgroup_check_for_new_every)) {
1321 read_all_cgroups(cgroup_root);
1322 update_cgroup_charts(update_every);
1327 void *cgroups_main(void *ptr)
1331 info("CGROUP Plugin thread created with task id %d", gettid());
1333 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
1334 error("Cannot set pthread cancel type to DEFERRED.");
1336 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
1337 error("Cannot set pthread cancel state to ENABLE.");
1339 struct rusage thread;
1341 // when ZERO, attempt to do it
1342 int vdo_sys_fs_cgroup = 0;
1343 int vdo_cpu_netdata = !config_get_boolean("plugin:cgroups", "cgroups plugin resources", 1);
1345 // keep track of the time each module was called
1346 unsigned long long sutime_sys_fs_cgroup = 0ULL;
1348 // the next time we will run - aligned properly
1349 unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
1350 unsigned long long sunow;
1352 RRDSET *stcpu_thread = NULL;
1355 if(unlikely(netdata_exit)) break;
1357 // delay until it is our time to run
1358 while((sunow = time_usec()) < sunext)
1359 sleep_usec(sunext - sunow);
1361 // find the next time we need to run
1362 while(time_usec() > sunext)
1363 sunext += rrd_update_every * 1000000ULL;
1365 if(unlikely(netdata_exit)) break;
1367 // BEGIN -- the job to be done
1369 if(!vdo_sys_fs_cgroup) {
1370 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_fs_cgroup().");
1371 sunow = time_usec();
1372 vdo_sys_fs_cgroup = do_sys_fs_cgroup(rrd_update_every, (sutime_sys_fs_cgroup > 0)?sunow - sutime_sys_fs_cgroup:0ULL);
1373 sutime_sys_fs_cgroup = sunow;
1375 if(unlikely(netdata_exit)) break;
1377 // END -- the job is done
1379 // --------------------------------------------------------------------
1381 if(!vdo_cpu_netdata) {
1382 getrusage(RUSAGE_THREAD, &thread);
1384 if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_cgroups_cpu");
1386 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);
1388 rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1389 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
1391 else rrdset_next(stcpu_thread);
1393 rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
1394 rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
1395 rrdset_done(stcpu_thread);