3 * Copyright (C) 2005-2014 Florian octo Forster
4 * Copyright (C) 2008 Oleg King
5 * Copyright (C) 2009 Simon Kuhnle
6 * Copyright (C) 2009 Manuel Sanmartin
7 * Copyright (C) 2013-2014 Pierre-Yves Ritschard
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; only version 2 of the License is applicable.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 * Florian octo Forster <octo at collectd.org>
24 * Oleg King <king2 at kaluga.ru>
25 * Simon Kuhnle <simon at blarzwurst.de>
27 * Pierre-Yves Ritschard <pyr at spootnik.org>
33 #include "utils/common/common.h"
35 #ifdef HAVE_MACH_KERN_RETURN_H
36 #include <mach/kern_return.h>
38 #ifdef HAVE_MACH_MACH_INIT_H
39 #include <mach/mach_init.h>
41 #ifdef HAVE_MACH_HOST_PRIV_H
42 #include <mach/host_priv.h>
44 #if HAVE_MACH_MACH_ERROR_H
45 #include <mach/mach_error.h>
47 #ifdef HAVE_MACH_PROCESSOR_INFO_H
48 #include <mach/processor_info.h>
50 #ifdef HAVE_MACH_PROCESSOR_H
51 #include <mach/processor.h>
53 #ifdef HAVE_MACH_VM_MAP_H
54 #include <mach/vm_map.h>
58 #include <sys/sysinfo.h>
59 #endif /* HAVE_LIBKSTAT */
61 #if (defined(HAVE_SYSCTL) && defined(HAVE_SYSCTLBYNAME)) || defined(__OpenBSD__)
62 /* Implies BSD variant */
63 #include <sys/sysctl.h>
66 #ifdef HAVE_SYS_DKSTAT_H
67 /* implies BSD variant */
68 #include <sys/dkstat.h>
70 #if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || \
71 !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
79 #endif /* HAVE_SYS_DKSTAT_H */
81 #define CAN_USE_SYSCTL 0
82 #if (defined(HAVE_SYSCTL) && defined(HAVE_SYSCTLBYNAME)) || defined(__OpenBSD__)
83 /* Implies BSD variant */
84 #if defined(CTL_HW) && defined(HW_NCPU) && defined(CTL_KERN) && \
85 defined(KERN_CPTIME) && defined(CPUSTATES)
86 #define CAN_USE_SYSCTL 1
88 #endif /* HAVE_SYSCTL_H && HAVE_SYSCTLBYNAME || __OpenBSD__ */
90 #define COLLECTD_CPU_STATE_USER 0
91 #define COLLECTD_CPU_STATE_SYSTEM 1
92 #define COLLECTD_CPU_STATE_WAIT 2
93 #define COLLECTD_CPU_STATE_NICE 3
94 #define COLLECTD_CPU_STATE_SWAP 4
95 #define COLLECTD_CPU_STATE_INTERRUPT 5
96 #define COLLECTD_CPU_STATE_SOFTIRQ 6
97 #define COLLECTD_CPU_STATE_STEAL 7
98 #define COLLECTD_CPU_STATE_GUEST 8
99 #define COLLECTD_CPU_STATE_GUEST_NICE 9
100 #define COLLECTD_CPU_STATE_IDLE 10
101 #define COLLECTD_CPU_STATE_ACTIVE 11 /* sum of (!idle) */
102 #define COLLECTD_CPU_STATE_MAX 12 /* #states */
105 #include <statgrab.h>
109 #include <libperfstat.h>
110 #include <sys/protosw.h>
111 #endif /* HAVE_PERFSTAT */
113 #if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT && \
114 !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && \
116 #error "No applicable input method."
119 static const char *cpu_state_names[] = {
120 "user", "system", "wait", "nice", "swap", "interrupt",
121 "softirq", "steal", "guest", "guest_nice", "idle", "active"};
123 #ifdef PROCESSOR_CPU_LOAD_INFO
124 static mach_port_t port_host;
125 static processor_port_array_t cpu_list;
126 static mach_msg_type_number_t cpu_list_len;
127 /* #endif PROCESSOR_CPU_LOAD_INFO */
129 #elif defined(KERNEL_LINUX)
130 /* no variables needed */
131 /* #endif KERNEL_LINUX */
133 #elif defined(HAVE_LIBKSTAT)
137 /* colleague tells me that Sun doesn't sell systems with more than 100 or so
139 #define MAX_NUMCPU 256
140 extern kstat_ctl_t *kc;
141 static kstat_t *ksp[MAX_NUMCPU];
143 /* #endif HAVE_LIBKSTAT */
146 /* Only possible for (Open) BSD variant */
148 /* #endif CAN_USE_SYSCTL */
150 #elif defined(HAVE_SYSCTLBYNAME)
151 /* Implies BSD variant */
153 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
155 #endif /* HAVE_SYSCTL_KERN_CP_TIMES */
156 /* #endif HAVE_SYSCTLBYNAME */
158 #elif defined(HAVE_LIBSTATGRAB)
159 /* no variables needed */
160 /* #endif HAVE_LIBSTATGRAB */
162 #elif defined(HAVE_PERFSTAT)
167 #define TOTAL_STAT_NUM 4
168 static value_to_rate_state_t total_conv[TOTAL_STAT_NUM];
169 static perfstat_cpu_t *perfcpu;
172 #endif /* HAVE_PERFSTAT */
174 #define RATE_ADD(sum, val) \
178 else if (!isnan(val)) \
183 value_to_rate_state_t conv;
187 typedef struct cpu_state_s cpu_state_t;
189 static cpu_state_t *cpu_states;
190 static size_t cpu_states_num; /* #cpu_states allocated */
192 /* Highest CPU number in the current iteration. Used by the dispatch logic to
193 * determine how many CPUs there were. Reset to 0 by cpu_reset(). */
194 static size_t global_cpu_num;
196 static bool report_by_cpu = true;
197 static bool report_by_state = true;
198 static bool report_percent;
199 static bool report_num_cpu;
200 static bool report_guest;
201 static bool subtract_guest = true;
203 static const char *config_keys[] = {"ReportByCpu", "ReportByState",
204 "ReportNumCpu", "ValuesPercentage",
205 "ReportGuestState", "SubtractGuestState"};
206 static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
208 static int cpu_config(char const *key, char const *value) /* {{{ */
210 if (strcasecmp(key, "ReportByCpu") == 0)
211 report_by_cpu = IS_TRUE(value);
212 else if (strcasecmp(key, "ValuesPercentage") == 0)
213 report_percent = IS_TRUE(value);
214 else if (strcasecmp(key, "ReportByState") == 0)
215 report_by_state = IS_TRUE(value);
216 else if (strcasecmp(key, "ReportNumCpu") == 0)
217 report_num_cpu = IS_TRUE(value);
218 else if (strcasecmp(key, "ReportGuestState") == 0)
219 report_guest = IS_TRUE(value);
220 else if (strcasecmp(key, "SubtractGuestState") == 0)
221 subtract_guest = IS_TRUE(value);
226 } /* }}} int cpu_config */
228 static int init(void) {
229 #if PROCESSOR_CPU_LOAD_INFO
230 kern_return_t status;
232 port_host = mach_host_self();
234 status = host_processors(port_host, &cpu_list, &cpu_list_len);
235 if (status == KERN_INVALID_ARGUMENT) {
236 ERROR("cpu plugin: Don't have a privileged host control port. "
237 "The most common cause for this problem is "
238 "that collectd is running without root "
239 "privileges, which are required to read CPU "
241 "<https://collectd.org/bugs/22>");
245 if (status != KERN_SUCCESS) {
246 ERROR("cpu plugin: host_processors() failed with status %d.", (int)status);
251 INFO("cpu plugin: Found %i processor%s.", (int)cpu_list_len,
252 cpu_list_len == 1 ? "" : "s");
253 /* #endif PROCESSOR_CPU_LOAD_INFO */
255 #elif defined(HAVE_LIBKSTAT)
263 /* Solaris doesn't count linear.. *sigh* */
264 for (numcpu = 0, ksp_chain = kc->kc_chain;
265 (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
266 ksp_chain = ksp_chain->ks_next)
267 if (strncmp(ksp_chain->ks_module, "cpu_stat", 8) == 0)
268 ksp[numcpu++] = ksp_chain;
269 /* #endif HAVE_LIBKSTAT */
272 /* Only on (Open) BSD variant */
274 int mib[2] = {CTL_HW, HW_NCPU};
278 numcpu_size = sizeof(numcpu);
280 status = sysctl(mib, STATIC_ARRAY_SIZE(mib), &numcpu, &numcpu_size, NULL, 0);
282 WARNING("cpu plugin: sysctl: %s", STRERRNO);
285 /* #endif CAN_USE_SYSCTL */
287 #elif defined(HAVE_SYSCTLBYNAME)
288 /* Only on BSD varient */
291 numcpu_size = sizeof(numcpu);
293 if (sysctlbyname("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0) {
294 WARNING("cpu plugin: sysctlbyname(hw.ncpu): %s", STRERRNO);
298 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
299 numcpu_size = sizeof(maxcpu);
301 if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0) {
302 WARNING("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s", STRERRNO);
307 NOTICE("cpu: Only one processor supported when using `sysctlbyname' (found "
311 /* #endif HAVE_SYSCTLBYNAME */
313 #elif defined(HAVE_LIBSTATGRAB)
314 /* nothing to initialize */
315 /* #endif HAVE_LIBSTATGRAB */
317 #elif defined(HAVE_PERFSTAT)
318 /* nothing to initialize */
319 #endif /* HAVE_PERFSTAT */
324 static void submit_value(int cpu_num, int cpu_state, const char *type,
326 value_list_t vl = VALUE_LIST_INIT;
331 sstrncpy(vl.plugin, "cpu", sizeof(vl.plugin));
332 sstrncpy(vl.type, type, sizeof(vl.type));
333 sstrncpy(vl.type_instance, cpu_state_names[cpu_state],
334 sizeof(vl.type_instance));
337 snprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%i", cpu_num);
339 plugin_dispatch_values(&vl);
342 static void submit_percent(int cpu_num, int cpu_state, gauge_t value) {
343 /* This function is called for all known CPU states, but each read
344 * method will only report a subset. The remaining states are left as
345 * NAN and we ignore them here. */
349 submit_value(cpu_num, cpu_state, "percent", (value_t){.gauge = value});
352 static void submit_derive(int cpu_num, int cpu_state, derive_t value) {
353 submit_value(cpu_num, cpu_state, "cpu", (value_t){.derive = value});
356 /* Takes the zero-index number of a CPU and makes sure that the module-global
357 * cpu_states buffer is large enough. Returne ENOMEM on erorr. */
358 static int cpu_states_alloc(size_t cpu_num) /* {{{ */
363 sz = (((size_t)cpu_num) + 1) * COLLECTD_CPU_STATE_MAX;
366 /* We already have enough space. */
367 if (cpu_states_num >= sz)
370 tmp = realloc(cpu_states, sz * sizeof(*cpu_states));
372 ERROR("cpu plugin: realloc failed.");
376 tmp = cpu_states + cpu_states_num;
378 memset(tmp, 0, (sz - cpu_states_num) * sizeof(*cpu_states));
381 } /* }}} cpu_states_alloc */
383 static cpu_state_t *get_cpu_state(size_t cpu_num, size_t state) /* {{{ */
385 size_t index = ((cpu_num * COLLECTD_CPU_STATE_MAX) + state);
387 if (index >= cpu_states_num)
390 return &cpu_states[index];
391 } /* }}} cpu_state_t *get_cpu_state */
393 #if defined(HAVE_PERFSTAT) /* {{{ */
394 /* populate global aggregate cpu rate */
395 static int total_rate(gauge_t *sum_by_state, size_t state, derive_t d,
396 value_to_rate_state_t *conv, cdtime_t now) {
399 value_to_rate(&rate, (value_t){.derive = d}, DS_TYPE_DERIVE, now, conv);
403 sum_by_state[state] = rate;
405 if (state != COLLECTD_CPU_STATE_IDLE)
406 RATE_ADD(sum_by_state[COLLECTD_CPU_STATE_ACTIVE], sum_by_state[state]);
409 #endif /* }}} HAVE_PERFSTAT */
411 /* Populates the per-CPU COLLECTD_CPU_STATE_ACTIVE rate and the global
414 static void aggregate(gauge_t *sum_by_state) /* {{{ */
416 for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
417 sum_by_state[state] = NAN;
419 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
420 cpu_state_t *this_cpu_states = get_cpu_state(cpu_num, 0);
422 this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate = NAN;
424 for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
425 if (!this_cpu_states[state].has_value)
428 RATE_ADD(sum_by_state[state], this_cpu_states[state].rate);
429 if (state != COLLECTD_CPU_STATE_IDLE)
430 RATE_ADD(this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate,
431 this_cpu_states[state].rate);
434 if (!isnan(this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate))
435 this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].has_value = true;
437 RATE_ADD(sum_by_state[COLLECTD_CPU_STATE_ACTIVE],
438 this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate);
441 #if defined(HAVE_PERFSTAT) /* {{{ */
442 cdtime_t now = cdtime();
443 perfstat_cpu_total_t cputotal = {0};
445 if (!perfstat_cpu_total(NULL, &cputotal, sizeof(cputotal), 1)) {
446 WARNING("cpu plugin: perfstat_cpu_total: %s", STRERRNO);
450 /* Reset COLLECTD_CPU_STATE_ACTIVE */
451 sum_by_state[COLLECTD_CPU_STATE_ACTIVE] = NAN;
453 /* Physical Processor Utilization */
454 total_rate(sum_by_state, COLLECTD_CPU_STATE_IDLE, (derive_t)cputotal.pidle,
455 &total_conv[TOTAL_IDLE], now);
456 total_rate(sum_by_state, COLLECTD_CPU_STATE_USER, (derive_t)cputotal.puser,
457 &total_conv[TOTAL_USER], now);
458 total_rate(sum_by_state, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cputotal.psys,
459 &total_conv[TOTAL_SYS], now);
460 total_rate(sum_by_state, COLLECTD_CPU_STATE_WAIT, (derive_t)cputotal.pwait,
461 &total_conv[TOTAL_WAIT], now);
462 #endif /* }}} HAVE_PERFSTAT */
463 } /* }}} void aggregate */
465 /* Commits (dispatches) the values for one CPU or the global aggregation.
466 * cpu_num is the index of the CPU to be committed or -1 in case of the global
467 * aggregation. rates is a pointer to COLLECTD_CPU_STATE_MAX gauge_t values
469 * current rate; each rate may be NAN. Calculates the percentage of each state
470 * and dispatches the metric. */
471 static void cpu_commit_one(int cpu_num, /* {{{ */
472 gauge_t rates[static COLLECTD_CPU_STATE_MAX]) {
475 sum = rates[COLLECTD_CPU_STATE_ACTIVE];
476 RATE_ADD(sum, rates[COLLECTD_CPU_STATE_IDLE]);
478 if (!report_by_state) {
479 gauge_t percent = 100.0 * rates[COLLECTD_CPU_STATE_ACTIVE] / sum;
480 submit_percent(cpu_num, COLLECTD_CPU_STATE_ACTIVE, percent);
484 for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
485 gauge_t percent = 100.0 * rates[state] / sum;
486 submit_percent(cpu_num, state, percent);
488 } /* }}} void cpu_commit_one */
490 /* Commits the number of cores */
491 static void cpu_commit_num_cpu(gauge_t value) /* {{{ */
493 value_list_t vl = VALUE_LIST_INIT;
495 vl.values = &(value_t){.gauge = value};
498 sstrncpy(vl.plugin, "cpu", sizeof(vl.plugin));
499 sstrncpy(vl.type, "count", sizeof(vl.type));
501 plugin_dispatch_values(&vl);
502 } /* }}} void cpu_commit_num_cpu */
504 /* Resets the internal aggregation. This is called by the read callback after
505 * each iteration / after each call to cpu_commit(). */
506 static void cpu_reset(void) /* {{{ */
508 for (size_t i = 0; i < cpu_states_num; i++)
509 cpu_states[i].has_value = false;
512 } /* }}} void cpu_reset */
514 /* Legacy behavior: Dispatches the raw derive values without any aggregation. */
515 static void cpu_commit_without_aggregation(void) /* {{{ */
517 for (int state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
518 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
519 cpu_state_t *s = get_cpu_state(cpu_num, state);
524 submit_derive((int)cpu_num, (int)state, s->conv.last_value.derive);
527 } /* }}} void cpu_commit_without_aggregation */
529 /* Aggregates the internal state and dispatches the metrics. */
530 static void cpu_commit(void) /* {{{ */
532 gauge_t global_rates[COLLECTD_CPU_STATE_MAX] = {
533 NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN /* Batman! */
537 cpu_commit_num_cpu((gauge_t)global_cpu_num);
539 if (report_by_state && report_by_cpu && !report_percent) {
540 cpu_commit_without_aggregation();
544 aggregate(global_rates);
546 if (!report_by_cpu) {
547 cpu_commit_one(-1, global_rates);
551 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
552 cpu_state_t *this_cpu_states = get_cpu_state(cpu_num, 0);
553 gauge_t local_rates[COLLECTD_CPU_STATE_MAX] = {
554 NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN};
556 for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
557 if (this_cpu_states[state].has_value)
558 local_rates[state] = this_cpu_states[state].rate;
560 cpu_commit_one((int)cpu_num, local_rates);
562 } /* }}} void cpu_commit */
564 /* Adds a derive value to the internal state. This should be used by each read
565 * function for each state. At the end of the iteration, the read function
566 * should call cpu_commit(). */
567 static int cpu_stage(size_t cpu_num, size_t state, derive_t d,
568 cdtime_t now) /* {{{ */
573 value_t val = {.derive = d};
575 if (state >= COLLECTD_CPU_STATE_ACTIVE)
578 status = cpu_states_alloc(cpu_num);
582 if (global_cpu_num <= cpu_num)
583 global_cpu_num = cpu_num + 1;
585 s = get_cpu_state(cpu_num, state);
587 status = value_to_rate(&rate, val, DS_TYPE_DERIVE, now, &s->conv);
594 } /* }}} int cpu_stage */
596 static int cpu_read(void) {
597 cdtime_t now = cdtime();
599 #if PROCESSOR_CPU_LOAD_INFO /* {{{ */
600 kern_return_t status;
602 processor_cpu_load_info_data_t cpu_info;
603 mach_msg_type_number_t cpu_info_len;
607 for (mach_msg_type_number_t cpu = 0; cpu < cpu_list_len; cpu++) {
609 cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
611 status = processor_info(cpu_list[cpu], PROCESSOR_CPU_LOAD_INFO, &cpu_host,
612 (processor_info_t)&cpu_info, &cpu_info_len);
613 if (status != KERN_SUCCESS) {
614 ERROR("cpu plugin: processor_info (PROCESSOR_CPU_LOAD_INFO) failed: %s",
615 mach_error_string(status));
619 if (cpu_info_len < CPU_STATE_MAX) {
620 ERROR("cpu plugin: processor_info returned only %i elements..",
625 cpu_stage(cpu, COLLECTD_CPU_STATE_USER,
626 (derive_t)cpu_info.cpu_ticks[CPU_STATE_USER], now);
627 cpu_stage(cpu, COLLECTD_CPU_STATE_NICE,
628 (derive_t)cpu_info.cpu_ticks[CPU_STATE_NICE], now);
629 cpu_stage(cpu, COLLECTD_CPU_STATE_SYSTEM,
630 (derive_t)cpu_info.cpu_ticks[CPU_STATE_SYSTEM], now);
631 cpu_stage(cpu, COLLECTD_CPU_STATE_IDLE,
632 (derive_t)cpu_info.cpu_ticks[CPU_STATE_IDLE], now);
634 /* }}} #endif PROCESSOR_CPU_LOAD_INFO */
636 #elif defined(KERNEL_LINUX) /* {{{ */
644 if ((fh = fopen("/proc/stat", "r")) == NULL) {
645 ERROR("cpu plugin: fopen (/proc/stat) failed: %s", STRERRNO);
649 while (fgets(buf, 1024, fh) != NULL) {
650 if (strncmp(buf, "cpu", 3))
652 if ((buf[3] < '0') || (buf[3] > '9'))
655 numfields = strsplit(buf, fields, STATIC_ARRAY_SIZE(fields));
659 cpu = atoi(fields[0] + 3);
661 /* Do not stage User and Nice immediately: we may need to alter them later:
663 long long user_value = atoll(fields[1]);
664 long long nice_value = atoll(fields[2]);
665 cpu_stage(cpu, COLLECTD_CPU_STATE_SYSTEM, (derive_t)atoll(fields[3]), now);
666 cpu_stage(cpu, COLLECTD_CPU_STATE_IDLE, (derive_t)atoll(fields[4]), now);
668 if (numfields >= 8) {
669 cpu_stage(cpu, COLLECTD_CPU_STATE_WAIT, (derive_t)atoll(fields[5]), now);
670 cpu_stage(cpu, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)atoll(fields[6]),
672 cpu_stage(cpu, COLLECTD_CPU_STATE_SOFTIRQ, (derive_t)atoll(fields[7]),
676 if (numfields >= 9) { /* Steal (since Linux 2.6.11) */
677 cpu_stage(cpu, COLLECTD_CPU_STATE_STEAL, (derive_t)atoll(fields[8]), now);
680 if (numfields >= 10) { /* Guest (since Linux 2.6.24) */
682 long long value = atoll(fields[9]);
683 cpu_stage(cpu, COLLECTD_CPU_STATE_GUEST, (derive_t)value, now);
684 /* Guest is included in User; optionally subtract Guest from User: */
685 if (subtract_guest) {
693 if (numfields >= 11) { /* Guest_nice (since Linux 2.6.33) */
695 long long value = atoll(fields[10]);
696 cpu_stage(cpu, COLLECTD_CPU_STATE_GUEST_NICE, (derive_t)value, now);
697 /* Guest_nice is included in Nice; optionally subtract Guest_nice from
699 if (subtract_guest) {
707 /* Eventually stage User and Nice: */
708 cpu_stage(cpu, COLLECTD_CPU_STATE_USER, (derive_t)user_value, now);
709 cpu_stage(cpu, COLLECTD_CPU_STATE_NICE, (derive_t)nice_value, now);
712 /* }}} #endif defined(KERNEL_LINUX) */
714 #elif defined(HAVE_LIBKSTAT) /* {{{ */
715 static cpu_stat_t cs;
720 for (int cpu = 0; cpu < numcpu; cpu++) {
721 if (kstat_read(kc, ksp[cpu], &cs) == -1)
722 continue; /* error message? */
724 cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_IDLE,
725 (derive_t)cs.cpu_sysinfo.cpu[CPU_IDLE], now);
726 cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_USER,
727 (derive_t)cs.cpu_sysinfo.cpu[CPU_USER], now);
728 cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_SYSTEM,
729 (derive_t)cs.cpu_sysinfo.cpu[CPU_KERNEL], now);
730 cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_WAIT,
731 (derive_t)cs.cpu_sysinfo.cpu[CPU_WAIT], now);
733 /* }}} #endif defined(HAVE_LIBKSTAT) */
735 #elif CAN_USE_SYSCTL /* {{{ */
736 /* Only on (Open) BSD variant */
737 uint64_t cpuinfo[numcpu][CPUSTATES];
742 ERROR("cpu plugin: Could not determine number of "
743 "installed CPUs using sysctl(3).");
747 memset(cpuinfo, 0, sizeof(cpuinfo));
749 #if defined(KERN_CPTIME2)
751 for (int i = 0; i < numcpu; i++) {
752 int mib[] = {CTL_KERN, KERN_CPTIME2, i};
754 cpuinfo_size = sizeof(cpuinfo[0]);
756 status = sysctl(mib, STATIC_ARRAY_SIZE(mib), cpuinfo[i], &cpuinfo_size,
759 ERROR("cpu plugin: sysctl failed: %s.", STRERRNO);
764 #endif /* defined(KERN_CPTIME2) */
766 int mib[] = {CTL_KERN, KERN_CPTIME};
767 long cpuinfo_tmp[CPUSTATES];
769 cpuinfo_size = sizeof(cpuinfo_tmp);
771 status = sysctl(mib, STATIC_ARRAY_SIZE(mib), &cpuinfo_tmp, &cpuinfo_size,
774 ERROR("cpu plugin: sysctl failed: %s.", STRERRNO);
778 for (int i = 0; i < CPUSTATES; i++) {
779 cpuinfo[0][i] = cpuinfo_tmp[i];
783 for (int i = 0; i < numcpu; i++) {
784 cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[i][CP_USER], now);
785 cpu_stage(i, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[i][CP_NICE], now);
786 cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[i][CP_SYS], now);
787 cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[i][CP_IDLE], now);
788 cpu_stage(i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[i][CP_INTR],
791 /* }}} #endif CAN_USE_SYSCTL */
793 #elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES) /* {{{ \
795 /* Only on BSD variant */
796 long cpuinfo[maxcpu][CPUSTATES];
799 memset(cpuinfo, 0, sizeof(cpuinfo));
801 cpuinfo_size = sizeof(cpuinfo);
802 if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0) {
803 ERROR("cpu plugin: sysctlbyname failed: %s.", STRERRNO);
807 for (int i = 0; i < numcpu; i++) {
808 cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[i][CP_USER], now);
809 cpu_stage(i, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[i][CP_NICE], now);
810 cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[i][CP_SYS], now);
811 cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[i][CP_IDLE], now);
812 cpu_stage(i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[i][CP_INTR],
815 /* }}} #endif HAVE_SYSCTL_KERN_CP_TIMES */
817 #elif defined(HAVE_SYSCTLBYNAME) /* {{{ */
818 /* Only on BSD variant */
819 long cpuinfo[CPUSTATES];
822 cpuinfo_size = sizeof(cpuinfo);
824 if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0) {
825 ERROR("cpu plugin: sysctlbyname failed: %s.", STRERRNO);
829 cpu_stage(0, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[CP_USER], now);
830 cpu_stage(0, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[CP_NICE], now);
831 cpu_stage(0, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[CP_SYS], now);
832 cpu_stage(0, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[CP_IDLE], now);
833 cpu_stage(0, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[CP_INTR], now);
834 /* }}} #endif HAVE_SYSCTLBYNAME */
836 #elif defined(HAVE_LIBSTATGRAB) /* {{{ */
838 cs = sg_get_cpu_stats();
841 ERROR("cpu plugin: sg_get_cpu_stats failed.");
845 cpu_state(0, COLLECTD_CPU_STATE_IDLE, (derive_t)cs->idle);
846 cpu_state(0, COLLECTD_CPU_STATE_NICE, (derive_t)cs->nice);
847 cpu_state(0, COLLECTD_CPU_STATE_SWAP, (derive_t)cs->swap);
848 cpu_state(0, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cs->kernel);
849 cpu_state(0, COLLECTD_CPU_STATE_USER, (derive_t)cs->user);
850 cpu_state(0, COLLECTD_CPU_STATE_WAIT, (derive_t)cs->iowait);
851 /* }}} #endif HAVE_LIBSTATGRAB */
853 #elif defined(HAVE_PERFSTAT) /* {{{ */
857 numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
859 WARNING("cpu plugin: perfstat_cpu: %s", STRERRNO);
863 if (pnumcpu != numcpu || perfcpu == NULL) {
865 perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
870 if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0) {
871 WARNING("cpu plugin: perfstat_cpu: %s", STRERRNO);
875 for (int i = 0; i < cpus; i++) {
876 cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)perfcpu[i].idle, now);
877 cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)perfcpu[i].sys, now);
878 cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)perfcpu[i].user, now);
879 cpu_stage(i, COLLECTD_CPU_STATE_WAIT, (derive_t)perfcpu[i].wait, now);
881 #endif /* }}} HAVE_PERFSTAT */
888 void module_register(void) {
889 plugin_register_init("cpu", init);
890 plugin_register_config("cpu", cpu_config, config_keys, config_keys_num);
891 plugin_register_read("cpu", cpu_read);
892 } /* void module_register */