1 /**
2 * collectd - src/cpu.c
3 * Copyright (C) 2005-2010 Florian octo Forster
4 * Copyright (C) 2008 Oleg King
5 * Copyright (C) 2009 Simon Kuhnle
6 * Copyright (C) 2009 Manuel Sanmartin
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; only version 2 of the License is applicable.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 * Authors:
22 * Florian octo Forster <octo at verplant.org>
23 * Oleg King <king2 at kaluga.ru>
24 * Simon Kuhnle <simon at blarzwurst.de>
25 * Manuel Sanmartin
26 **/
28 #include "collectd.h"
29 #include "common.h"
30 #include "plugin.h"
32 #ifdef HAVE_MACH_KERN_RETURN_H
33 # include <mach/kern_return.h>
34 #endif
35 #ifdef HAVE_MACH_MACH_INIT_H
36 # include <mach/mach_init.h>
37 #endif
38 #ifdef HAVE_MACH_HOST_PRIV_H
39 # include <mach/host_priv.h>
40 #endif
41 #if HAVE_MACH_MACH_ERROR_H
42 # include <mach/mach_error.h>
43 #endif
44 #ifdef HAVE_MACH_PROCESSOR_INFO_H
45 # include <mach/processor_info.h>
46 #endif
47 #ifdef HAVE_MACH_PROCESSOR_H
48 # include <mach/processor.h>
49 #endif
50 #ifdef HAVE_MACH_VM_MAP_H
51 # include <mach/vm_map.h>
52 #endif
54 #ifdef HAVE_LIBKSTAT
55 # include <sys/sysinfo.h>
56 #endif /* HAVE_LIBKSTAT */
58 #if (defined(HAVE_SYSCTL) && HAVE_SYSCTL) \
59 || (defined(HAVE_SYSCTLBYNAME) && HAVE_SYSCTLBYNAME)
60 # ifdef HAVE_SYS_SYSCTL_H
61 # include <sys/sysctl.h>
62 # endif
64 # ifdef HAVE_SYS_DKSTAT_H
65 # include <sys/dkstat.h>
66 # endif
68 # if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
69 # define CP_USER 0
70 # define CP_NICE 1
71 # define CP_SYS 2
72 # define CP_INTR 3
73 # define CP_IDLE 4
74 # define CPUSTATES 5
75 # endif
76 #endif /* HAVE_SYSCTL || HAVE_SYSCTLBYNAME */
78 #if HAVE_SYSCTL
79 # if defined(CTL_HW) && defined(HW_NCPU) \
80 && defined(CTL_KERN) && defined(KERN_CPTIME) && defined(CPUSTATES)
81 # define CAN_USE_SYSCTL 1
82 # else
83 # define CAN_USE_SYSCTL 0
84 # endif
85 #else
86 # define CAN_USE_SYSCTL 0
87 #endif
89 #define CPU_SUBMIT_USER 0
90 #define CPU_SUBMIT_SYSTEM 1
91 #define CPU_SUBMIT_WAIT 2
92 #define CPU_SUBMIT_NICE 3
93 #define CPU_SUBMIT_SWAP 4
94 #define CPU_SUBMIT_INTERRUPT 5
95 #define CPU_SUBMIT_SOFTIRQ 6
96 #define CPU_SUBMIT_STEAL 7
97 #define CPU_SUBMIT_IDLE 8
98 #define CPU_SUBMIT_ACTIVE 9
99 #define CPU_SUBMIT_MAX 10
101 #if HAVE_STATGRAB_H
102 # include <statgrab.h>
103 #endif
105 # ifdef HAVE_PERFSTAT
106 # include <sys/protosw.h>
107 # include <libperfstat.h>
108 # endif /* HAVE_PERFSTAT */
110 #if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT \
111 && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
112 # error "No applicable input method."
113 #endif
115 static const char *cpu_state_names[] = {
116 "user",
117 "system",
118 "wait",
119 "nice",
120 "swap",
121 "interrupt",
122 "softirq",
123 "steal",
124 "idle",
125 "active"
126 };
128 #ifdef PROCESSOR_CPU_LOAD_INFO
129 static mach_port_t port_host;
130 static processor_port_array_t cpu_list;
131 static mach_msg_type_number_t cpu_list_len;
133 #if PROCESSOR_TEMPERATURE
134 static int cpu_temp_retry_counter = 0;
135 static int cpu_temp_retry_step = 1;
136 static int cpu_temp_retry_max = 1;
137 #endif /* PROCESSOR_TEMPERATURE */
138 /* #endif PROCESSOR_CPU_LOAD_INFO */
140 #elif defined(KERNEL_LINUX)
141 /* no variables needed */
142 /* #endif KERNEL_LINUX */
144 #elif defined(HAVE_LIBKSTAT)
145 /* colleague tells me that Sun doesn't sell systems with more than 100 or so CPUs.. */
146 # define MAX_NUMCPU 256
147 extern kstat_ctl_t *kc;
148 static kstat_t *ksp[MAX_NUMCPU];
149 static int numcpu;
150 /* #endif HAVE_LIBKSTAT */
152 #elif CAN_USE_SYSCTL
153 static int numcpu;
154 /* #endif CAN_USE_SYSCTL */
156 #elif defined(HAVE_SYSCTLBYNAME)
157 static int numcpu;
158 # ifdef HAVE_SYSCTL_KERN_CP_TIMES
159 static int maxcpu;
160 # endif /* HAVE_SYSCTL_KERN_CP_TIMES */
161 /* #endif HAVE_SYSCTLBYNAME */
163 #elif defined(HAVE_LIBSTATGRAB)
164 /* no variables needed */
165 /* #endif HAVE_LIBSTATGRAB */
167 #elif defined(HAVE_PERFSTAT)
168 static perfstat_cpu_t *perfcpu;
169 static int numcpu;
170 static int pnumcpu;
171 #endif /* HAVE_PERFSTAT */
173 static value_to_rate_state_t *percents = NULL;
174 static gauge_t agg_percents[CPU_SUBMIT_MAX] = {
175 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
177 };
178 static int percents_cells = 0;
179 static int cpu_count = 0;
182 static _Bool report_by_cpu = 1;
183 static _Bool report_percent = 0;
184 static _Bool report_active = 0;
186 static const char *config_keys[] =
187 {
188 "ReportByCpu",
189 "ReportActive",
190 "ValuesPercentage"
191 };
192 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
195 static int cpu_config (const char *key, const char *value)
196 {
197 if (strcasecmp (key, "ReportByCpu") == 0) {
198 report_by_cpu = IS_TRUE (value) ? 1 : 0;
199 if (!report_by_cpu)
200 report_percent = 1;
201 }
202 if (strcasecmp (key, "ValuesPercentage") == 0) {
203 report_percent = IS_TRUE (value) ? 1 : 0;
204 if (!report_percent)
205 report_by_cpu = 1;
206 }
207 if (strcasecmp (key, "ReportActive") == 0)
208 report_active = IS_TRUE (value) ? 1 : 0;
209 return (-1);
210 }
212 static int cpu_states_grow (void)
213 {
214 void *tmp;
215 int size;
216 int i;
218 size = cpu_count * CPU_SUBMIT_MAX; /* always alloc for all states */
220 if (size <= 0)
221 return 0;
223 if (percents_cells >= size)
224 return 0;
226 if (percents == NULL) {
227 percents = malloc(size * sizeof(*percents));
228 if (percents == NULL)
229 return -1;
230 for (i = 0; i < size; i++)
231 memset(&percents[i], 0, sizeof(*percents));
232 percents_cells = size;
233 return 0;
234 }
236 tmp = realloc(percents, size * sizeof(*percents));
238 if (tmp == NULL) {
239 ERROR ("cpu plugin: could not reserve enough space to hold states");
240 percents = NULL;
241 return -1;
242 }
244 for (i = percents_cells; i < size; i++)
245 memset(&percents[i], 0, sizeof(*percents));
247 percents = tmp;
248 percents_cells = size;
249 return 0;
250 } /* cpu_states_grow */
253 static int init (void)
254 {
255 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
256 kern_return_t status;
258 port_host = mach_host_self ();
260 /* FIXME: Free `cpu_list' if it's not NULL */
261 if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS)
262 {
263 ERROR ("cpu plugin: host_processors returned %i", (int) status);
264 cpu_list_len = 0;
265 return (-1);
266 }
268 DEBUG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors");
269 INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
271 cpu_temp_retry_max = 86400 / CDTIME_T_TO_TIME_T (plugin_get_interval ());
272 /* #endif PROCESSOR_CPU_LOAD_INFO */
274 #elif defined(HAVE_LIBKSTAT)
275 kstat_t *ksp_chain;
277 numcpu = 0;
279 if (kc == NULL)
280 return (-1);
282 /* Solaris doesn't count linear.. *sigh* */
283 for (numcpu = 0, ksp_chain = kc->kc_chain;
284 (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
285 ksp_chain = ksp_chain->ks_next)
286 if (strncmp (ksp_chain->ks_module, "cpu_stat", 8) == 0)
287 ksp[numcpu++] = ksp_chain;
288 /* #endif HAVE_LIBKSTAT */
290 #elif CAN_USE_SYSCTL
291 size_t numcpu_size;
292 int mib[2] = {CTL_HW, HW_NCPU};
293 int status;
295 numcpu = 0;
296 numcpu_size = sizeof (numcpu);
298 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
299 &numcpu, &numcpu_size, NULL, 0);
300 if (status == -1)
301 {
302 char errbuf[1024];
303 WARNING ("cpu plugin: sysctl: %s",
304 sstrerror (errno, errbuf, sizeof (errbuf)));
305 return (-1);
306 }
307 /* #endif CAN_USE_SYSCTL */
309 #elif defined (HAVE_SYSCTLBYNAME)
310 size_t numcpu_size;
312 numcpu_size = sizeof (numcpu);
314 if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
315 {
316 char errbuf[1024];
317 WARNING ("cpu plugin: sysctlbyname(hw.ncpu): %s",
318 sstrerror (errno, errbuf, sizeof (errbuf)));
319 return (-1);
320 }
322 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
323 numcpu_size = sizeof (maxcpu);
325 if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0)
326 {
327 char errbuf[1024];
328 WARNING ("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s",
329 sstrerror (errno, errbuf, sizeof (errbuf)));
330 return (-1);
331 }
332 #else
333 if (numcpu != 1)
334 NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
335 #endif
336 /* #endif HAVE_SYSCTLBYNAME */
338 #elif defined(HAVE_LIBSTATGRAB)
339 /* nothing to initialize */
340 /* #endif HAVE_LIBSTATGRAB */
342 #elif defined(HAVE_PERFSTAT)
343 /* nothing to initialize */
344 #endif /* HAVE_PERFSTAT */
346 return (0);
347 } /* int init */
349 static void submit_value (int cpu_num, int cpu_state, const char *type, value_t value)
350 {
351 value_t values[1];
352 value_list_t vl = VALUE_LIST_INIT;
354 memcpy(&values[0], &value, sizeof(value));
356 vl.values = values;
357 vl.values_len = 1;
359 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
360 sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
361 sstrncpy (vl.type, type, sizeof (vl.type));
362 sstrncpy (vl.type_instance, cpu_state_names[cpu_state],
363 sizeof (vl.type_instance));
365 if (cpu_num >= 0) {
366 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
367 "%i", cpu_num);
368 }
369 plugin_dispatch_values (&vl);
370 }
372 static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
373 {
374 value_t value;
376 value.gauge = percent;
377 submit_value (cpu_num, cpu_state, "percent", value);
378 }
380 static void submit_derive(int cpu_num, int cpu_state, derive_t derive)
381 {
382 value_t value;
384 value.derive = derive;
385 submit_value (cpu_num, cpu_state, "cpu", value);
386 }
388 static void submit_flush (void)
389 {
390 int i = 0;
392 if (report_by_cpu) {
393 cpu_count = 0;
394 return;
395 }
397 for (i = 0; i < CPU_SUBMIT_MAX; i++) {
398 if (agg_percents[i] == -1)
399 continue;
401 submit_percent(-1, i, agg_percents[i] / cpu_count);
402 agg_percents[i] = -1;
403 }
404 cpu_count = 0;
405 }
407 static void submit (int cpu_num, derive_t *derives)
408 {
410 int i = 0;
412 if (!report_percent && report_by_cpu) {
413 derive_t cpu_active = 0;
414 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++)
415 {
416 if (derives[i] == -1)
417 continue;
419 if (i != CPU_SUBMIT_IDLE)
420 cpu_active += derives[i];
422 submit_derive(cpu_num, i, derives[i]);
423 }
424 if (report_active)
425 submit_derive(cpu_num, CPU_SUBMIT_ACTIVE, cpu_active);
426 }
427 else /* we are reporting percents */
428 {
429 cdtime_t cdt;
430 gauge_t percent;
431 gauge_t cpu_total = 0;
432 gauge_t cpu_active = 0;
433 gauge_t local_rates[CPU_SUBMIT_MAX];
435 cpu_count++;
436 if (cpu_states_grow())
437 return;
439 memset(local_rates, 0, sizeof(local_rates));
441 cdt = cdtime();
442 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++) {
443 value_t rate;
444 int index;
446 if (derives[i] == -1)
447 continue;
449 index = (cpu_num * CPU_SUBMIT_MAX) + i;
450 if (value_to_rate(&rate, derives[i], &percents[index],
451 DS_TYPE_DERIVE, cdt) != 0) {
452 local_rates[i] = -1;
453 continue;
454 }
456 local_rates[i] = rate.gauge;
457 cpu_total += rate.gauge;
458 if (i != CPU_SUBMIT_IDLE)
459 cpu_active += rate.gauge;
460 }
461 if (cpu_total == 0.0)
462 return;
464 if (report_active)
465 local_rates[CPU_SUBMIT_ACTIVE] = cpu_active;
467 for (i = 0; i < CPU_SUBMIT_MAX; i++) {
468 if (local_rates[i] == -1)
469 continue;
471 percent = (local_rates[i] / cpu_total) * 100;
472 if (report_by_cpu)
473 submit_percent (cpu_num, i, percent);
474 else {
475 if (agg_percents[i] == -1)
476 agg_percents[i] = percent;
477 else
478 agg_percents[i] += percent;
479 }
481 }
482 }
483 }
485 static int cpu_read (void)
486 {
487 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
488 int cpu;
490 kern_return_t status;
492 #if PROCESSOR_CPU_LOAD_INFO
493 processor_cpu_load_info_data_t cpu_info;
494 mach_msg_type_number_t cpu_info_len;
495 #endif
496 #if PROCESSOR_TEMPERATURE
497 processor_info_data_t cpu_temp;
498 mach_msg_type_number_t cpu_temp_len;
499 #endif
501 host_t cpu_host;
503 for (cpu = 0; cpu < cpu_list_len; cpu++)
504 {
505 #if PROCESSOR_CPU_LOAD_INFO
506 derive_t derives[CPU_SUBMIT_MAX] = {
507 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
508 };
509 memset(derives, -1, sizeof(derives));
510 cpu_host = 0;
511 cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
513 if ((status = processor_info (cpu_list[cpu],
514 PROCESSOR_CPU_LOAD_INFO, &cpu_host,
515 (processor_info_t) &cpu_info, &cpu_info_len)) != KERN_SUCCESS)
516 {
517 ERROR ("cpu plugin: processor_info failed with status %i", (int) status);
518 continue;
519 }
521 if (cpu_info_len < CPU_STATE_MAX)
522 {
523 ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
524 continue;
525 }
527 derives[CPU_SUBMIT_USER] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER];
528 derives[CPU_SUBMIT_NICE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE];
529 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM];
530 derives[CPU_SUBMIT_IDLE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE];
531 submit (cpu, derives);
533 #endif /* PROCESSOR_CPU_LOAD_INFO */
534 #if PROCESSOR_TEMPERATURE
535 /*
536 * Not all Apple computers do have this ability. To minimize
537 * the messages sent to the syslog we do an exponential
538 * stepback if `processor_info' fails. We still try ~once a day
539 * though..
540 */
541 if (cpu_temp_retry_counter > 0)
542 {
543 cpu_temp_retry_counter--;
544 continue;
545 }
547 cpu_temp_len = PROCESSOR_INFO_MAX;
549 status = processor_info (cpu_list[cpu],
550 PROCESSOR_TEMPERATURE,
551 &cpu_host,
552 cpu_temp, &cpu_temp_len);
553 if (status != KERN_SUCCESS)
554 {
555 ERROR ("cpu plugin: processor_info failed: %s",
556 mach_error_string (status));
558 cpu_temp_retry_counter = cpu_temp_retry_step;
559 cpu_temp_retry_step *= 2;
560 if (cpu_temp_retry_step > cpu_temp_retry_max)
561 cpu_temp_retry_step = cpu_temp_retry_max;
563 continue;
564 }
566 if (cpu_temp_len != 1)
567 {
568 DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
569 (int) cpu_temp_len);
570 continue;
571 }
573 cpu_temp_retry_counter = 0;
574 cpu_temp_retry_step = 1;
575 #endif /* PROCESSOR_TEMPERATURE */
576 }
577 submit_flush ();
578 /* #endif PROCESSOR_CPU_LOAD_INFO */
580 #elif defined(KERNEL_LINUX)
581 int cpu;
582 FILE *fh;
583 char buf[1024];
585 char *fields[9];
586 int numfields;
588 if ((fh = fopen ("/proc/stat", "r")) == NULL)
589 {
590 char errbuf[1024];
591 ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
592 sstrerror (errno, errbuf, sizeof (errbuf)));
593 return (-1);
594 }
596 while (fgets (buf, 1024, fh) != NULL)
597 {
598 derive_t derives[CPU_SUBMIT_MAX] = {
599 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
600 };
602 if (strncmp (buf, "cpu", 3))
603 continue;
604 if ((buf[3] < '0') || (buf[3] > '9'))
605 continue;
607 numfields = strsplit (buf, fields, 9);
608 if (numfields < 5)
609 continue;
611 cpu = atoi (fields[0] + 3);
612 derives[CPU_SUBMIT_USER] = atoll(fields[1]);
613 derives[CPU_SUBMIT_NICE] = atoll(fields[2]);
614 derives[CPU_SUBMIT_SYSTEM] = atoll(fields[3]);
615 derives[CPU_SUBMIT_IDLE] = atoll(fields[4]);
617 if (numfields >= 8)
618 {
619 derives[CPU_SUBMIT_WAIT] = atoll(fields[5]);
620 derives[CPU_SUBMIT_INTERRUPT] = atoll(fields[6]);
621 derives[CPU_SUBMIT_SOFTIRQ] = atoll(fields[6]);
623 if (numfields >= 9)
624 derives[CPU_SUBMIT_STEAL] = atoll(fields[8]);
625 }
626 submit(cpu, derives);
627 }
628 submit_flush();
630 fclose (fh);
631 /* #endif defined(KERNEL_LINUX) */
633 #elif defined(HAVE_LIBKSTAT)
634 int cpu;
635 static cpu_stat_t cs;
637 if (kc == NULL)
638 return (-1);
640 for (cpu = 0; cpu < numcpu; cpu++)
641 {
642 derive_t derives[CPU_SUBMIT_MAX] = {
643 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
644 };
646 if (kstat_read (kc, ksp[cpu], &cs) == -1)
647 continue; /* error message? */
649 memset(derives, -1, sizeof(derives));
650 derives[CPU_SUBMIT_IDLE] = cs.cpu_sysinfo.cpu[CPU_IDLE];
651 derives[CPU_SUBMIT_USER] = cs.cpu_sysinfo.cpu[CPU_USER];
652 derives[CPU_SUBMIT_SYSTEM] = cs.cpu_sysinfo.cpu[CPU_KERNEL];
653 derives[CPU_SUBMIT_WAIT] = cs.cpu_sysinfo.cpu[CPU_WAIT];
654 submit (ksp[cpu]->ks_instance, derives);
655 }
656 submit_flush ();
657 /* #endif defined(HAVE_LIBKSTAT) */
659 #elif CAN_USE_SYSCTL
660 uint64_t cpuinfo[numcpu][CPUSTATES];
661 size_t cpuinfo_size;
662 int status;
663 int i;
665 if (numcpu < 1)
666 {
667 ERROR ("cpu plugin: Could not determine number of "
668 "installed CPUs using sysctl(3).");
669 return (-1);
670 }
672 memset (cpuinfo, 0, sizeof (cpuinfo));
674 #if defined(KERN_CPTIME2)
675 if (numcpu > 1) {
676 for (i = 0; i < numcpu; i++) {
677 int mib[] = {CTL_KERN, KERN_CPTIME2, i};
679 cpuinfo_size = sizeof (cpuinfo[0]);
681 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
682 cpuinfo[i], &cpuinfo_size, NULL, 0);
683 if (status == -1) {
684 char errbuf[1024];
685 ERROR ("cpu plugin: sysctl failed: %s.",
686 sstrerror (errno, errbuf, sizeof (errbuf)));
687 return (-1);
688 }
689 }
690 }
691 else
692 #endif /* defined(KERN_CPTIME2) */
693 {
694 int mib[] = {CTL_KERN, KERN_CPTIME};
695 long cpuinfo_tmp[CPUSTATES];
697 cpuinfo_size = sizeof(cpuinfo_tmp);
699 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
700 &cpuinfo_tmp, &cpuinfo_size, NULL, 0);
701 if (status == -1)
702 {
703 char errbuf[1024];
704 ERROR ("cpu plugin: sysctl failed: %s.",
705 sstrerror (errno, errbuf, sizeof (errbuf)));
706 return (-1);
707 }
709 for(i = 0; i < CPUSTATES; i++) {
710 cpuinfo[0][i] = cpuinfo_tmp[i];
711 }
712 }
714 for (i = 0; i < numcpu; i++) {
715 derive_t derives[CPU_SUBMIT_MAX] = {
716 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
717 };
719 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
720 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
721 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
722 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
723 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
724 submit(i, derives);
725 }
726 submit_flush();
727 /* #endif CAN_USE_SYSCTL */
728 #elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES)
729 long cpuinfo[maxcpu][CPUSTATES];
730 size_t cpuinfo_size;
731 int i;
733 memset (cpuinfo, 0, sizeof (cpuinfo));
735 cpuinfo_size = sizeof (cpuinfo);
736 if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
737 {
738 char errbuf[1024];
739 ERROR ("cpu plugin: sysctlbyname failed: %s.",
740 sstrerror (errno, errbuf, sizeof (errbuf)));
741 return (-1);
742 }
744 for (i = 0; i < numcpu; i++) {
745 derive_t derives[CPU_SUBMIT_MAX] = {
746 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
747 };
749 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
750 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
751 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
752 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
753 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
754 submit(i, derives);
755 }
756 submit_flush();
758 /* #endif HAVE_SYSCTL_KERN_CP_TIMES */
759 #elif defined(HAVE_SYSCTLBYNAME)
760 long cpuinfo[CPUSTATES];
761 size_t cpuinfo_size;
762 derive_t derives[CPU_SUBMIT_MAX] = {
763 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
764 };
766 cpuinfo_size = sizeof (cpuinfo);
768 if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
769 {
770 char errbuf[1024];
771 ERROR ("cpu plugin: sysctlbyname failed: %s.",
772 sstrerror (errno, errbuf, sizeof (errbuf)));
773 return (-1);
774 }
776 derives[CPU_SUBMIT_USER] = cpuinfo[CP_USER];
777 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[CP_SYS];
778 derives[CPU_SUBMIT_NICE] = cpuinfo[CP_NICE];
779 derives[CPU_SUBMIT_IDLE] = cpuinfo[CP_IDLE];
780 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[CP_INTR];
781 submit(0, derives);
782 submit_flush();
784 /* #endif HAVE_SYSCTLBYNAME */
786 #elif defined(HAVE_LIBSTATGRAB)
787 sg_cpu_stats *cs;
788 derive_t derives[CPU_SUBMIT_MAX] = {
789 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
790 };
791 cs = sg_get_cpu_stats ();
793 if (cs == NULL)
794 {
795 ERROR ("cpu plugin: sg_get_cpu_stats failed.");
796 return (-1);
797 }
799 derives[CPU_SUBMIT_IDLE] = (derive_t) cs->idle;
800 derives[CPU_SUBMIT_NICE] = (derive_t) cs->nice;
801 derives[CPU_SUBMIT_SWAP] = (derive_t) cs->swap;
802 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cs->kernel;
803 derives[CPU_SUBMIT_USER] = (derive_t) cs->user;
804 derives[CPU_SUBMIT_WAIT] = (derive_t) cs->iowait;
805 submit(0, derives);
806 submit_flush();
807 /* #endif HAVE_LIBSTATGRAB */
809 #elif defined(HAVE_PERFSTAT)
810 perfstat_id_t id;
811 int i, cpus;
813 numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
814 if(numcpu == -1)
815 {
816 char errbuf[1024];
817 WARNING ("cpu plugin: perfstat_cpu: %s",
818 sstrerror (errno, errbuf, sizeof (errbuf)));
819 return (-1);
820 }
822 if (pnumcpu != numcpu || perfcpu == NULL)
823 {
824 if (perfcpu != NULL)
825 free(perfcpu);
826 perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
827 }
828 pnumcpu = numcpu;
830 id.name[0] = '\0';
831 if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0)
832 {
833 char errbuf[1024];
834 WARNING ("cpu plugin: perfstat_cpu: %s",
835 sstrerror (errno, errbuf, sizeof (errbuf)));
836 return (-1);
837 }
839 for (i = 0; i < cpus; i++)
840 {
841 derive_t derives[CPU_SUBMIT_MAX] = {
842 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
843 };
844 derives[CPU_SUBMIT_IDLE] = perfcpu[i].idle;
845 derives[CPU_SUBMIT_SYSTEM] = perfcpu[i].sys;
846 derives[CPU_SUBMIT_USER] = perfcpu[i].user;
847 derives[CPU_SUBMIT_WAIT] = perfcpu[i].wait;
848 submit(i, derives);
849 }
850 submit_flush();
851 #endif /* HAVE_PERFSTAT */
853 return (0);
854 }
856 void module_register (void)
857 {
858 plugin_register_init ("cpu", init);
859 plugin_register_config ("cpu", cpu_config, config_keys, config_keys_num);
860 plugin_register_read ("cpu", cpu_read);
861 } /* void module_register */