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>
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) && HAVE_SYSCTL) \
62 || (defined(HAVE_SYSCTLBYNAME) && HAVE_SYSCTLBYNAME)
63 # ifdef HAVE_SYS_SYSCTL_H
64 # include <sys/sysctl.h>
67 # ifdef HAVE_SYS_DKSTAT_H
68 # include <sys/dkstat.h>
71 # if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
79 #endif /* HAVE_SYSCTL || HAVE_SYSCTLBYNAME */
82 # if defined(CTL_HW) && defined(HW_NCPU) \
83 && defined(CTL_KERN) && defined(KERN_CPTIME) && defined(CPUSTATES)
84 # define CAN_USE_SYSCTL 1
86 # define CAN_USE_SYSCTL 0
89 # define CAN_USE_SYSCTL 0
92 #define COLLECTD_CPU_STATE_USER 0
93 #define COLLECTD_CPU_STATE_SYSTEM 1
94 #define COLLECTD_CPU_STATE_WAIT 2
95 #define COLLECTD_CPU_STATE_NICE 3
96 #define COLLECTD_CPU_STATE_SWAP 4
97 #define COLLECTD_CPU_STATE_INTERRUPT 5
98 #define COLLECTD_CPU_STATE_SOFTIRQ 6
99 #define COLLECTD_CPU_STATE_STEAL 7
100 #define COLLECTD_CPU_STATE_IDLE 8
101 #define COLLECTD_CPU_STATE_ACTIVE 9 /* sum of (!idle) */
102 #define COLLECTD_CPU_STATE_MAX 10 /* #states */
105 # include <statgrab.h>
108 # ifdef HAVE_PERFSTAT
109 # include <sys/protosw.h>
110 # include <libperfstat.h>
111 # endif /* HAVE_PERFSTAT */
113 #if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT \
114 && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
115 # error "No applicable input method."
118 static const char *cpu_state_names[] = {
131 #ifdef PROCESSOR_CPU_LOAD_INFO
132 static mach_port_t port_host;
133 static processor_port_array_t cpu_list;
134 static mach_msg_type_number_t cpu_list_len;
135 /* #endif PROCESSOR_CPU_LOAD_INFO */
137 #elif defined(KERNEL_LINUX)
138 /* no variables needed */
139 /* #endif KERNEL_LINUX */
141 #elif defined(HAVE_LIBKSTAT)
142 /* colleague tells me that Sun doesn't sell systems with more than 100 or so CPUs.. */
143 # define MAX_NUMCPU 256
144 extern kstat_ctl_t *kc;
145 static kstat_t *ksp[MAX_NUMCPU];
147 /* #endif HAVE_LIBKSTAT */
151 /* #endif CAN_USE_SYSCTL */
153 #elif defined(HAVE_SYSCTLBYNAME)
155 # ifdef HAVE_SYSCTL_KERN_CP_TIMES
157 # endif /* HAVE_SYSCTL_KERN_CP_TIMES */
158 /* #endif HAVE_SYSCTLBYNAME */
160 #elif defined(HAVE_LIBSTATGRAB)
161 /* no variables needed */
162 /* #endif HAVE_LIBSTATGRAB */
164 #elif defined(HAVE_PERFSTAT)
169 #define TOTAL_STAT_NUM 4
170 static value_to_rate_state_t total_conv[TOTAL_STAT_NUM];
171 static perfstat_cpu_t *perfcpu;
174 #endif /* HAVE_PERFSTAT */
176 #define RATE_ADD(sum, val) do { \
179 else if (!isnan (val)) \
185 value_to_rate_state_t conv;
189 typedef struct cpu_state_s cpu_state_t;
191 static cpu_state_t *cpu_states = NULL;
192 static size_t cpu_states_num = 0; /* #cpu_states allocated */
194 /* Highest CPU number in the current iteration. Used by the dispatch logic to
195 * determine how many CPUs there were. Reset to 0 by cpu_reset(). */
196 static size_t global_cpu_num = 0;
198 static _Bool report_by_cpu = 1;
199 static _Bool report_by_state = 1;
200 static _Bool report_percent = 0;
201 static _Bool report_num_cpu = 0;
203 static const char *config_keys[] =
210 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
212 static int cpu_config (char const *key, char const *value) /* {{{ */
214 if (strcasecmp (key, "ReportByCpu") == 0)
215 report_by_cpu = IS_TRUE (value) ? 1 : 0;
216 else if (strcasecmp (key, "ValuesPercentage") == 0)
217 report_percent = IS_TRUE (value) ? 1 : 0;
218 else if (strcasecmp (key, "ReportByState") == 0)
219 report_by_state = IS_TRUE (value) ? 1 : 0;
220 else if (strcasecmp (key, "ReportNumCpu") == 0)
221 report_num_cpu = IS_TRUE (value) ? 1 : 0;
226 } /* }}} int cpu_config */
228 static int init (void)
230 #if PROCESSOR_CPU_LOAD_INFO
231 kern_return_t status;
233 port_host = mach_host_self ();
235 status = host_processors (port_host, &cpu_list, &cpu_list_len);
236 if (status == KERN_INVALID_ARGUMENT)
238 ERROR ("cpu plugin: Don't have a privileged host control port. "
239 "The most common cause for this problem is "
240 "that collectd is running without root "
241 "privileges, which are required to read CPU "
243 "<https://collectd.org/bugs/22>");
247 if (status != KERN_SUCCESS)
249 ERROR ("cpu plugin: host_processors() failed with status %d.", (int) status);
254 INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
255 /* #endif PROCESSOR_CPU_LOAD_INFO */
257 #elif defined(HAVE_LIBKSTAT)
265 /* Solaris doesn't count linear.. *sigh* */
266 for (numcpu = 0, ksp_chain = kc->kc_chain;
267 (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
268 ksp_chain = ksp_chain->ks_next)
269 if (strncmp (ksp_chain->ks_module, "cpu_stat", 8) == 0)
270 ksp[numcpu++] = ksp_chain;
271 /* #endif HAVE_LIBKSTAT */
275 int mib[2] = {CTL_HW, HW_NCPU};
279 numcpu_size = sizeof (numcpu);
281 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
282 &numcpu, &numcpu_size, NULL, 0);
286 WARNING ("cpu plugin: sysctl: %s",
287 sstrerror (errno, errbuf, sizeof (errbuf)));
290 /* #endif CAN_USE_SYSCTL */
292 #elif defined (HAVE_SYSCTLBYNAME)
295 numcpu_size = sizeof (numcpu);
297 if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
300 WARNING ("cpu plugin: sysctlbyname(hw.ncpu): %s",
301 sstrerror (errno, errbuf, sizeof (errbuf)));
305 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
306 numcpu_size = sizeof (maxcpu);
308 if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0)
311 WARNING ("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s",
312 sstrerror (errno, errbuf, sizeof (errbuf)));
317 NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
319 /* #endif HAVE_SYSCTLBYNAME */
321 #elif defined(HAVE_LIBSTATGRAB)
322 /* nothing to initialize */
323 /* #endif HAVE_LIBSTATGRAB */
325 #elif defined(HAVE_PERFSTAT)
326 /* nothing to initialize */
327 #endif /* HAVE_PERFSTAT */
332 static void submit_value (int cpu_num, int cpu_state, const char *type, value_t value)
334 value_list_t vl = VALUE_LIST_INIT;
339 sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
340 sstrncpy (vl.type, type, sizeof (vl.type));
341 sstrncpy (vl.type_instance, cpu_state_names[cpu_state],
342 sizeof (vl.type_instance));
345 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
348 plugin_dispatch_values (&vl);
351 static void submit_percent (int cpu_num, int cpu_state, gauge_t value)
353 /* This function is called for all known CPU states, but each read
354 * method will only report a subset. The remaining states are left as
355 * NAN and we ignore them here. */
359 submit_value (cpu_num, cpu_state, "percent",
360 (value_t) { .gauge = value });
363 static void submit_derive (int cpu_num, int cpu_state, derive_t value)
365 submit_value (cpu_num, cpu_state, "cpu",
366 (value_t) { .derive = value });
369 /* Takes the zero-index number of a CPU and makes sure that the module-global
370 * cpu_states buffer is large enough. Returne ENOMEM on erorr. */
371 static int cpu_states_alloc (size_t cpu_num) /* {{{ */
376 sz = (((size_t) cpu_num) + 1) * COLLECTD_CPU_STATE_MAX;
379 /* We already have enough space. */
380 if (cpu_states_num >= sz)
383 tmp = realloc (cpu_states, sz * sizeof (*cpu_states));
386 ERROR ("cpu plugin: realloc failed.");
390 tmp = cpu_states + cpu_states_num;
392 memset (tmp, 0, (sz - cpu_states_num) * sizeof (*cpu_states));
395 } /* }}} cpu_states_alloc */
397 static cpu_state_t *get_cpu_state (size_t cpu_num, size_t state) /* {{{ */
399 size_t index = ((cpu_num * COLLECTD_CPU_STATE_MAX) + state);
401 if (index >= cpu_states_num)
404 return (&cpu_states[index]);
405 } /* }}} cpu_state_t *get_cpu_state */
407 #if defined(HAVE_PERFSTAT) /* {{{ */
408 /* populate global aggregate cpu rate */
409 static int total_rate(gauge_t *sum_by_state, size_t state, derive_t d,
410 value_to_rate_state_t* conv, cdtime_t now)
413 int status = value_to_rate (&rate, (value_t) { .derive = d }, DS_TYPE_DERIVE, now, conv);
417 sum_by_state[state] = rate;
419 if (state != COLLECTD_CPU_STATE_IDLE)
420 RATE_ADD (sum_by_state[COLLECTD_CPU_STATE_ACTIVE], sum_by_state[state]);
423 #endif /* }}} HAVE_PERFSTAT */
425 /* Populates the per-CPU COLLECTD_CPU_STATE_ACTIVE rate and the global rate_by_state
427 static void aggregate (gauge_t *sum_by_state) /* {{{ */
429 for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
430 sum_by_state[state] = NAN;
432 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++)
434 cpu_state_t *this_cpu_states = get_cpu_state (cpu_num, 0);
436 this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate = NAN;
438 for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++)
440 if (!this_cpu_states[state].has_value)
443 RATE_ADD (sum_by_state[state], this_cpu_states[state].rate);
444 if (state != COLLECTD_CPU_STATE_IDLE)
445 RATE_ADD (this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate, this_cpu_states[state].rate);
448 if (!isnan (this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate))
449 this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].has_value = 1;
451 RATE_ADD (sum_by_state[COLLECTD_CPU_STATE_ACTIVE], this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate);
454 #if defined(HAVE_PERFSTAT) /* {{{ */
455 cdtime_t now = cdtime ();
456 perfstat_cpu_total_t cputotal = { 0 };
458 if (!perfstat_cpu_total(NULL, &cputotal, sizeof(cputotal), 1)) {
460 WARNING ("cpu plugin: perfstat_cpu_total: %s",
461 sstrerror (errno, errbuf, sizeof (errbuf)));
465 /* Reset COLLECTD_CPU_STATE_ACTIVE */
466 sum_by_state[COLLECTD_CPU_STATE_ACTIVE] = NAN;
468 /* Physical Processor Utilization */
469 total_rate(sum_by_state, COLLECTD_CPU_STATE_IDLE, (derive_t) cputotal.pidle, &total_conv[TOTAL_IDLE], now);
470 total_rate(sum_by_state, COLLECTD_CPU_STATE_USER, (derive_t) cputotal.puser, &total_conv[TOTAL_USER], now);
471 total_rate(sum_by_state, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cputotal.psys , &total_conv[TOTAL_SYS], now);
472 total_rate(sum_by_state, COLLECTD_CPU_STATE_WAIT, (derive_t) cputotal.pwait, &total_conv[TOTAL_WAIT], now);
473 #endif /* }}} HAVE_PERFSTAT */
474 } /* }}} void aggregate */
476 /* Commits (dispatches) the values for one CPU or the global aggregation.
477 * cpu_num is the index of the CPU to be committed or -1 in case of the global
478 * aggregation. rates is a pointer to COLLECTD_CPU_STATE_MAX gauge_t values holding the
479 * current rate; each rate may be NAN. Calculates the percentage of each state
480 * and dispatches the metric. */
481 static void cpu_commit_one (int cpu_num, /* {{{ */
482 gauge_t rates[static COLLECTD_CPU_STATE_MAX])
486 sum = rates[COLLECTD_CPU_STATE_ACTIVE];
487 RATE_ADD (sum, rates[COLLECTD_CPU_STATE_IDLE]);
489 if (!report_by_state)
491 gauge_t percent = 100.0 * rates[COLLECTD_CPU_STATE_ACTIVE] / sum;
492 submit_percent (cpu_num, COLLECTD_CPU_STATE_ACTIVE, percent);
496 for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++)
498 gauge_t percent = 100.0 * rates[state] / sum;
499 submit_percent (cpu_num, state, percent);
501 } /* }}} void cpu_commit_one */
503 /* Commits the number of cores */
504 static void cpu_commit_num_cpu (gauge_t value) /* {{{ */
506 value_list_t vl = VALUE_LIST_INIT;
508 vl.values = &(value_t) { .gauge = value };
511 sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
512 sstrncpy (vl.type, "count", sizeof (vl.type));
514 plugin_dispatch_values (&vl);
515 } /* }}} void cpu_commit_num_cpu */
517 /* Resets the internal aggregation. This is called by the read callback after
518 * each iteration / after each call to cpu_commit(). */
519 static void cpu_reset (void) /* {{{ */
521 for (size_t i = 0; i < cpu_states_num; i++)
522 cpu_states[i].has_value = 0;
525 } /* }}} void cpu_reset */
527 /* Legacy behavior: Dispatches the raw derive values without any aggregation. */
528 static void cpu_commit_without_aggregation (void) /* {{{ */
530 for (int state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++)
532 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++)
534 cpu_state_t *s = get_cpu_state (cpu_num, state);
539 submit_derive ((int) cpu_num, (int) state, s->conv.last_value.derive);
542 } /* }}} void cpu_commit_without_aggregation */
544 /* Aggregates the internal state and dispatches the metrics. */
545 static void cpu_commit (void) /* {{{ */
547 gauge_t global_rates[COLLECTD_CPU_STATE_MAX] = {
548 NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN /* Batman! */
552 cpu_commit_num_cpu ((gauge_t) global_cpu_num);
554 if (report_by_state && report_by_cpu && !report_percent)
556 cpu_commit_without_aggregation ();
560 aggregate (global_rates);
564 cpu_commit_one (-1, global_rates);
568 for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++)
570 cpu_state_t *this_cpu_states = get_cpu_state (cpu_num, 0);
571 gauge_t local_rates[COLLECTD_CPU_STATE_MAX] = {
572 NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN
575 for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
576 if (this_cpu_states[state].has_value)
577 local_rates[state] = this_cpu_states[state].rate;
579 cpu_commit_one ((int) cpu_num, local_rates);
581 } /* }}} void cpu_commit */
583 /* Adds a derive value to the internal state. This should be used by each read
584 * function for each state. At the end of the iteration, the read function
585 * should call cpu_commit(). */
586 static int cpu_stage (size_t cpu_num, size_t state, derive_t d, cdtime_t now) /* {{{ */
591 value_t val = { .derive = d };
593 if (state >= COLLECTD_CPU_STATE_ACTIVE)
596 status = cpu_states_alloc (cpu_num);
600 if (global_cpu_num <= cpu_num)
601 global_cpu_num = cpu_num + 1;
603 s = get_cpu_state (cpu_num, state);
605 status = value_to_rate (&rate, val, DS_TYPE_DERIVE, now, &s->conv);
612 } /* }}} int cpu_stage */
614 static int cpu_read (void)
616 cdtime_t now = cdtime ();
618 #if PROCESSOR_CPU_LOAD_INFO /* {{{ */
619 kern_return_t status;
621 processor_cpu_load_info_data_t cpu_info;
622 mach_msg_type_number_t cpu_info_len;
626 for (mach_msg_type_number_t cpu = 0; cpu < cpu_list_len; cpu++)
629 cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
631 status = processor_info (cpu_list[cpu], PROCESSOR_CPU_LOAD_INFO, &cpu_host,
632 (processor_info_t) &cpu_info, &cpu_info_len);
633 if (status != KERN_SUCCESS)
635 ERROR ("cpu plugin: processor_info (PROCESSOR_CPU_LOAD_INFO) failed: %s",
636 mach_error_string (status));
640 if (cpu_info_len < CPU_STATE_MAX)
642 ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
646 cpu_stage (cpu, COLLECTD_CPU_STATE_USER, (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER], now);
647 cpu_stage (cpu, COLLECTD_CPU_STATE_NICE, (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE], now);
648 cpu_stage (cpu, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM], now);
649 cpu_stage (cpu, COLLECTD_CPU_STATE_IDLE, (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE], now);
651 /* }}} #endif PROCESSOR_CPU_LOAD_INFO */
653 #elif defined(KERNEL_LINUX) /* {{{ */
661 if ((fh = fopen ("/proc/stat", "r")) == NULL)
664 ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
665 sstrerror (errno, errbuf, sizeof (errbuf)));
669 while (fgets (buf, 1024, fh) != NULL)
671 if (strncmp (buf, "cpu", 3))
673 if ((buf[3] < '0') || (buf[3] > '9'))
676 numfields = strsplit (buf, fields, 9);
680 cpu = atoi (fields[0] + 3);
682 cpu_stage (cpu, COLLECTD_CPU_STATE_USER, (derive_t) atoll(fields[1]), now);
683 cpu_stage (cpu, COLLECTD_CPU_STATE_NICE, (derive_t) atoll(fields[2]), now);
684 cpu_stage (cpu, COLLECTD_CPU_STATE_SYSTEM, (derive_t) atoll(fields[3]), now);
685 cpu_stage (cpu, COLLECTD_CPU_STATE_IDLE, (derive_t) atoll(fields[4]), now);
689 cpu_stage (cpu, COLLECTD_CPU_STATE_WAIT, (derive_t) atoll(fields[5]), now);
690 cpu_stage (cpu, COLLECTD_CPU_STATE_INTERRUPT, (derive_t) atoll(fields[6]), now);
691 cpu_stage (cpu, COLLECTD_CPU_STATE_SOFTIRQ, (derive_t) atoll(fields[7]), now);
694 cpu_stage (cpu, COLLECTD_CPU_STATE_STEAL, (derive_t) atoll(fields[8]), now);
698 /* }}} #endif defined(KERNEL_LINUX) */
700 #elif defined(HAVE_LIBKSTAT) /* {{{ */
701 static cpu_stat_t cs;
706 for (int cpu = 0; cpu < numcpu; cpu++)
708 if (kstat_read (kc, ksp[cpu], &cs) == -1)
709 continue; /* error message? */
711 cpu_stage (ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_IDLE, (derive_t) cs.cpu_sysinfo.cpu[CPU_IDLE], now);
712 cpu_stage (ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_USER, (derive_t) cs.cpu_sysinfo.cpu[CPU_USER], now);
713 cpu_stage (ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cs.cpu_sysinfo.cpu[CPU_KERNEL], now);
714 cpu_stage (ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_WAIT, (derive_t) cs.cpu_sysinfo.cpu[CPU_WAIT], now);
716 /* }}} #endif defined(HAVE_LIBKSTAT) */
718 #elif CAN_USE_SYSCTL /* {{{ */
719 uint64_t cpuinfo[numcpu][CPUSTATES];
725 ERROR ("cpu plugin: Could not determine number of "
726 "installed CPUs using sysctl(3).");
730 memset (cpuinfo, 0, sizeof (cpuinfo));
732 #if defined(KERN_CPTIME2)
734 for (int i = 0; i < numcpu; i++) {
735 int mib[] = {CTL_KERN, KERN_CPTIME2, i};
737 cpuinfo_size = sizeof (cpuinfo[0]);
739 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
740 cpuinfo[i], &cpuinfo_size, NULL, 0);
743 ERROR ("cpu plugin: sysctl failed: %s.",
744 sstrerror (errno, errbuf, sizeof (errbuf)));
750 #endif /* defined(KERN_CPTIME2) */
752 int mib[] = {CTL_KERN, KERN_CPTIME};
753 long cpuinfo_tmp[CPUSTATES];
755 cpuinfo_size = sizeof(cpuinfo_tmp);
757 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
758 &cpuinfo_tmp, &cpuinfo_size, NULL, 0);
762 ERROR ("cpu plugin: sysctl failed: %s.",
763 sstrerror (errno, errbuf, sizeof (errbuf)));
767 for(int i = 0; i < CPUSTATES; i++) {
768 cpuinfo[0][i] = cpuinfo_tmp[i];
772 for (int i = 0; i < numcpu; i++) {
773 cpu_stage (i, COLLECTD_CPU_STATE_USER, (derive_t) cpuinfo[i][CP_USER], now);
774 cpu_stage (i, COLLECTD_CPU_STATE_NICE, (derive_t) cpuinfo[i][CP_NICE], now);
775 cpu_stage (i, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cpuinfo[i][CP_SYS], now);
776 cpu_stage (i, COLLECTD_CPU_STATE_IDLE, (derive_t) cpuinfo[i][CP_IDLE], now);
777 cpu_stage (i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t) cpuinfo[i][CP_INTR], now);
779 /* }}} #endif CAN_USE_SYSCTL */
781 #elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES) /* {{{ */
782 long cpuinfo[maxcpu][CPUSTATES];
785 memset (cpuinfo, 0, sizeof (cpuinfo));
787 cpuinfo_size = sizeof (cpuinfo);
788 if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
791 ERROR ("cpu plugin: sysctlbyname failed: %s.",
792 sstrerror (errno, errbuf, sizeof (errbuf)));
796 for (int i = 0; i < numcpu; i++) {
797 cpu_stage (i, COLLECTD_CPU_STATE_USER, (derive_t) cpuinfo[i][CP_USER], now);
798 cpu_stage (i, COLLECTD_CPU_STATE_NICE, (derive_t) cpuinfo[i][CP_NICE], now);
799 cpu_stage (i, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cpuinfo[i][CP_SYS], now);
800 cpu_stage (i, COLLECTD_CPU_STATE_IDLE, (derive_t) cpuinfo[i][CP_IDLE], now);
801 cpu_stage (i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t) cpuinfo[i][CP_INTR], now);
803 /* }}} #endif HAVE_SYSCTL_KERN_CP_TIMES */
805 #elif defined(HAVE_SYSCTLBYNAME) /* {{{ */
806 long cpuinfo[CPUSTATES];
809 cpuinfo_size = sizeof (cpuinfo);
811 if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
814 ERROR ("cpu plugin: sysctlbyname failed: %s.",
815 sstrerror (errno, errbuf, sizeof (errbuf)));
819 cpu_stage (0, COLLECTD_CPU_STATE_USER, (derive_t) cpuinfo[CP_USER], now);
820 cpu_stage (0, COLLECTD_CPU_STATE_NICE, (derive_t) cpuinfo[CP_NICE], now);
821 cpu_stage (0, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cpuinfo[CP_SYS], now);
822 cpu_stage (0, COLLECTD_CPU_STATE_IDLE, (derive_t) cpuinfo[CP_IDLE], now);
823 cpu_stage (0, COLLECTD_CPU_STATE_INTERRUPT, (derive_t) cpuinfo[CP_INTR], now);
824 /* }}} #endif HAVE_SYSCTLBYNAME */
826 #elif defined(HAVE_LIBSTATGRAB) /* {{{ */
828 cs = sg_get_cpu_stats ();
832 ERROR ("cpu plugin: sg_get_cpu_stats failed.");
836 cpu_state (0, COLLECTD_CPU_STATE_IDLE, (derive_t) cs->idle);
837 cpu_state (0, COLLECTD_CPU_STATE_NICE, (derive_t) cs->nice);
838 cpu_state (0, COLLECTD_CPU_STATE_SWAP, (derive_t) cs->swap);
839 cpu_state (0, COLLECTD_CPU_STATE_SYSTEM, (derive_t) cs->kernel);
840 cpu_state (0, COLLECTD_CPU_STATE_USER, (derive_t) cs->user);
841 cpu_state (0, COLLECTD_CPU_STATE_WAIT, (derive_t) cs->iowait);
842 /* }}} #endif HAVE_LIBSTATGRAB */
844 #elif defined(HAVE_PERFSTAT) /* {{{ */
848 numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
852 WARNING ("cpu plugin: perfstat_cpu: %s",
853 sstrerror (errno, errbuf, sizeof (errbuf)));
857 if (pnumcpu != numcpu || perfcpu == NULL)
860 perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
865 if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0)
868 WARNING ("cpu plugin: perfstat_cpu: %s",
869 sstrerror (errno, errbuf, sizeof (errbuf)));
873 for (int i = 0; i < cpus; i++)
875 cpu_stage (i, COLLECTD_CPU_STATE_IDLE, (derive_t) perfcpu[i].idle, now);
876 cpu_stage (i, COLLECTD_CPU_STATE_SYSTEM, (derive_t) perfcpu[i].sys, now);
877 cpu_stage (i, COLLECTD_CPU_STATE_USER, (derive_t) perfcpu[i].user, now);
878 cpu_stage (i, COLLECTD_CPU_STATE_WAIT, (derive_t) perfcpu[i].wait, now);
880 #endif /* }}} HAVE_PERFSTAT */
887 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 */
894 /* vim: set sw=8 sts=8 noet fdm=marker : */