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
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.
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.
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
22 * Florian octo Forster <octo at collectd.org>
23 * Oleg King <king2 at kaluga.ru>
24 * Simon Kuhnle <simon at blarzwurst.de>
32 #ifdef HAVE_MACH_KERN_RETURN_H
33 # include <mach/kern_return.h>
35 #ifdef HAVE_MACH_MACH_INIT_H
36 # include <mach/mach_init.h>
38 #ifdef HAVE_MACH_HOST_PRIV_H
39 # include <mach/host_priv.h>
41 #if HAVE_MACH_MACH_ERROR_H
42 # include <mach/mach_error.h>
44 #ifdef HAVE_MACH_PROCESSOR_INFO_H
45 # include <mach/processor_info.h>
47 #ifdef HAVE_MACH_PROCESSOR_H
48 # include <mach/processor.h>
50 #ifdef HAVE_MACH_VM_MAP_H
51 # include <mach/vm_map.h>
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>
64 # ifdef HAVE_SYS_DKSTAT_H
65 # include <sys/dkstat.h>
68 # if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
76 #endif /* HAVE_SYSCTL || HAVE_SYSCTLBYNAME */
79 # if defined(CTL_HW) && defined(HW_NCPU) \
80 && defined(CTL_KERN) && defined(KERN_CPTIME) && defined(CPUSTATES)
81 # define CAN_USE_SYSCTL 1
83 # define CAN_USE_SYSCTL 0
86 # define CAN_USE_SYSCTL 0
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
102 # include <statgrab.h>
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."
115 static const char *cpu_state_names[] = {
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];
150 /* #endif HAVE_LIBKSTAT */
154 /* #endif CAN_USE_SYSCTL */
156 #elif defined(HAVE_SYSCTLBYNAME)
158 # ifdef HAVE_SYSCTL_KERN_CP_TIMES
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;
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
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[] =
192 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
195 static int cpu_config (const char *key, const char *value)
197 if (strcasecmp (key, "ReportByCpu") == 0) {
198 report_by_cpu = IS_TRUE (value) ? 1 : 0;
202 if (strcasecmp (key, "ValuesPercentage") == 0) {
203 report_percent = IS_TRUE (value) ? 1 : 0;
207 if (strcasecmp (key, "ReportActive") == 0)
208 report_active = IS_TRUE (value) ? 1 : 0;
212 static int cpu_states_grow (void)
218 size = cpu_count * CPU_SUBMIT_MAX; /* always alloc for all states */
223 if (percents_cells >= size)
226 if (percents == NULL) {
227 percents = malloc(size * sizeof(*percents));
228 if (percents == NULL)
230 for (i = 0; i < size; i++)
231 memset(&percents[i], 0, sizeof(*percents));
232 percents_cells = size;
236 tmp = realloc(percents, size * sizeof(*percents));
239 ERROR ("cpu plugin: could not reserve enough space to hold states");
246 for (i = percents_cells ; i < size; i++)
247 memset(&percents[i], 0, sizeof(*percents));
249 percents_cells = size;
251 } /* cpu_states_grow */
254 static int init (void)
256 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
257 kern_return_t status;
259 port_host = mach_host_self ();
261 /* FIXME: Free `cpu_list' if it's not NULL */
262 if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS)
264 ERROR ("cpu plugin: host_processors returned %i", (int) status);
269 DEBUG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors");
270 INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
272 cpu_temp_retry_max = 86400 / CDTIME_T_TO_TIME_T (plugin_get_interval ());
273 /* #endif PROCESSOR_CPU_LOAD_INFO */
275 #elif defined(HAVE_LIBKSTAT)
283 /* Solaris doesn't count linear.. *sigh* */
284 for (numcpu = 0, ksp_chain = kc->kc_chain;
285 (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
286 ksp_chain = ksp_chain->ks_next)
287 if (strncmp (ksp_chain->ks_module, "cpu_stat", 8) == 0)
288 ksp[numcpu++] = ksp_chain;
289 /* #endif HAVE_LIBKSTAT */
293 int mib[2] = {CTL_HW, HW_NCPU};
297 numcpu_size = sizeof (numcpu);
299 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
300 &numcpu, &numcpu_size, NULL, 0);
304 WARNING ("cpu plugin: sysctl: %s",
305 sstrerror (errno, errbuf, sizeof (errbuf)));
308 /* #endif CAN_USE_SYSCTL */
310 #elif defined (HAVE_SYSCTLBYNAME)
313 numcpu_size = sizeof (numcpu);
315 if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
318 WARNING ("cpu plugin: sysctlbyname(hw.ncpu): %s",
319 sstrerror (errno, errbuf, sizeof (errbuf)));
323 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
324 numcpu_size = sizeof (maxcpu);
326 if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0)
329 WARNING ("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s",
330 sstrerror (errno, errbuf, sizeof (errbuf)));
335 NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
337 /* #endif HAVE_SYSCTLBYNAME */
339 #elif defined(HAVE_LIBSTATGRAB)
340 /* nothing to initialize */
341 /* #endif HAVE_LIBSTATGRAB */
343 #elif defined(HAVE_PERFSTAT)
344 /* nothing to initialize */
345 #endif /* HAVE_PERFSTAT */
350 static void submit_value (int cpu_num, int cpu_state, const char *type, value_t value)
353 value_list_t vl = VALUE_LIST_INIT;
355 memcpy(&values[0], &value, sizeof(value));
360 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
361 sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
362 sstrncpy (vl.type, type, sizeof (vl.type));
363 sstrncpy (vl.type_instance, cpu_state_names[cpu_state],
364 sizeof (vl.type_instance));
367 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
370 plugin_dispatch_values (&vl);
373 static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
377 value.gauge = percent;
378 submit_value (cpu_num, cpu_state, "percent", value);
381 static void submit_derive(int cpu_num, int cpu_state, derive_t derive)
385 value.derive = derive;
386 submit_value (cpu_num, cpu_state, "cpu", value);
389 static void submit_flush (void)
398 for (i = 0; i < CPU_SUBMIT_MAX; i++) {
399 if (agg_percents[i] == -1)
402 submit_percent(-1, i, agg_percents[i] / cpu_count);
403 agg_percents[i] = -1;
408 static void submit (int cpu_num, derive_t *derives)
413 if (!report_percent && report_by_cpu) {
414 derive_t cpu_active = 0;
415 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++)
417 if (derives[i] == -1)
420 if (i != CPU_SUBMIT_IDLE)
421 cpu_active += derives[i];
423 submit_derive(cpu_num, i, derives[i]);
426 submit_derive(cpu_num, CPU_SUBMIT_ACTIVE, cpu_active);
428 else /* we are reporting percents */
432 gauge_t cpu_total = 0;
433 gauge_t cpu_active = 0;
434 gauge_t local_rates[CPU_SUBMIT_MAX];
437 if (cpu_states_grow())
440 memset(local_rates, 0, sizeof(local_rates));
443 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++) {
447 if (derives[i] == -1)
450 index = (cpu_num * CPU_SUBMIT_MAX) + i;
451 if (value_to_rate(&rate, derives[i], &percents[index],
452 DS_TYPE_DERIVE, cdt) != 0) {
457 local_rates[i] = rate.gauge;
458 cpu_total += rate.gauge;
459 if (i != CPU_SUBMIT_IDLE)
460 cpu_active += rate.gauge;
462 if (cpu_total == 0.0)
466 local_rates[CPU_SUBMIT_ACTIVE] = cpu_active;
468 for (i = 0; i < CPU_SUBMIT_MAX; i++) {
469 if (local_rates[i] == -1)
472 percent = (local_rates[i] / cpu_total) * 100;
474 submit_percent (cpu_num, i, percent);
476 if (agg_percents[i] == -1)
477 agg_percents[i] = percent;
479 agg_percents[i] += percent;
486 static int cpu_read (void)
488 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
491 kern_return_t status;
493 #if PROCESSOR_CPU_LOAD_INFO
494 processor_cpu_load_info_data_t cpu_info;
495 mach_msg_type_number_t cpu_info_len;
497 #if PROCESSOR_TEMPERATURE
498 processor_info_data_t cpu_temp;
499 mach_msg_type_number_t cpu_temp_len;
504 for (cpu = 0; cpu < cpu_list_len; cpu++)
506 #if PROCESSOR_CPU_LOAD_INFO
507 derive_t derives[CPU_SUBMIT_MAX] = {
508 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
510 memset(derives, -1, sizeof(derives));
512 cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
514 if ((status = processor_info (cpu_list[cpu],
515 PROCESSOR_CPU_LOAD_INFO, &cpu_host,
516 (processor_info_t) &cpu_info, &cpu_info_len)) != KERN_SUCCESS)
518 ERROR ("cpu plugin: processor_info failed with status %i", (int) status);
522 if (cpu_info_len < CPU_STATE_MAX)
524 ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
528 derives[CPU_SUBMIT_USER] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER];
529 derives[CPU_SUBMIT_NICE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE];
530 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM];
531 derives[CPU_SUBMIT_IDLE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE];
532 submit (cpu, derives);
534 #endif /* PROCESSOR_CPU_LOAD_INFO */
535 #if PROCESSOR_TEMPERATURE
537 * Not all Apple computers do have this ability. To minimize
538 * the messages sent to the syslog we do an exponential
539 * stepback if `processor_info' fails. We still try ~once a day
542 if (cpu_temp_retry_counter > 0)
544 cpu_temp_retry_counter--;
548 cpu_temp_len = PROCESSOR_INFO_MAX;
550 status = processor_info (cpu_list[cpu],
551 PROCESSOR_TEMPERATURE,
553 cpu_temp, &cpu_temp_len);
554 if (status != KERN_SUCCESS)
556 ERROR ("cpu plugin: processor_info failed: %s",
557 mach_error_string (status));
559 cpu_temp_retry_counter = cpu_temp_retry_step;
560 cpu_temp_retry_step *= 2;
561 if (cpu_temp_retry_step > cpu_temp_retry_max)
562 cpu_temp_retry_step = cpu_temp_retry_max;
567 if (cpu_temp_len != 1)
569 DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
574 cpu_temp_retry_counter = 0;
575 cpu_temp_retry_step = 1;
576 #endif /* PROCESSOR_TEMPERATURE */
579 /* #endif PROCESSOR_CPU_LOAD_INFO */
581 #elif defined(KERNEL_LINUX)
589 if ((fh = fopen ("/proc/stat", "r")) == NULL)
592 ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
593 sstrerror (errno, errbuf, sizeof (errbuf)));
597 while (fgets (buf, 1024, fh) != NULL)
599 derive_t derives[CPU_SUBMIT_MAX] = {
600 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
603 if (strncmp (buf, "cpu", 3))
605 if ((buf[3] < '0') || (buf[3] > '9'))
608 numfields = strsplit (buf, fields, 9);
612 cpu = atoi (fields[0] + 3);
613 derives[CPU_SUBMIT_USER] = atoll(fields[1]);
614 derives[CPU_SUBMIT_NICE] = atoll(fields[2]);
615 derives[CPU_SUBMIT_SYSTEM] = atoll(fields[3]);
616 derives[CPU_SUBMIT_IDLE] = atoll(fields[4]);
620 derives[CPU_SUBMIT_WAIT] = atoll(fields[5]);
621 derives[CPU_SUBMIT_INTERRUPT] = atoll(fields[6]);
622 derives[CPU_SUBMIT_SOFTIRQ] = atoll(fields[6]);
625 derives[CPU_SUBMIT_STEAL] = atoll(fields[8]);
627 submit(cpu, derives);
632 /* #endif defined(KERNEL_LINUX) */
634 #elif defined(HAVE_LIBKSTAT)
636 static cpu_stat_t cs;
641 for (cpu = 0; cpu < numcpu; cpu++)
643 derive_t derives[CPU_SUBMIT_MAX] = {
644 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
647 if (kstat_read (kc, ksp[cpu], &cs) == -1)
648 continue; /* error message? */
650 memset(derives, -1, sizeof(derives));
651 derives[CPU_SUBMIT_IDLE] = cs.cpu_sysinfo.cpu[CPU_IDLE];
652 derives[CPU_SUBMIT_USER] = cs.cpu_sysinfo.cpu[CPU_USER];
653 derives[CPU_SUBMIT_SYSTEM] = cs.cpu_sysinfo.cpu[CPU_KERNEL];
654 derives[CPU_SUBMIT_WAIT] = cs.cpu_sysinfo.cpu[CPU_WAIT];
655 submit (ksp[cpu]->ks_instance, derives);
658 /* #endif defined(HAVE_LIBKSTAT) */
661 uint64_t cpuinfo[numcpu][CPUSTATES];
668 ERROR ("cpu plugin: Could not determine number of "
669 "installed CPUs using sysctl(3).");
673 memset (cpuinfo, 0, sizeof (cpuinfo));
675 #if defined(KERN_CPTIME2)
677 for (i = 0; i < numcpu; i++) {
678 int mib[] = {CTL_KERN, KERN_CPTIME2, i};
680 cpuinfo_size = sizeof (cpuinfo[0]);
682 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
683 cpuinfo[i], &cpuinfo_size, NULL, 0);
686 ERROR ("cpu plugin: sysctl failed: %s.",
687 sstrerror (errno, errbuf, sizeof (errbuf)));
693 #endif /* defined(KERN_CPTIME2) */
695 int mib[] = {CTL_KERN, KERN_CPTIME};
696 long cpuinfo_tmp[CPUSTATES];
698 cpuinfo_size = sizeof(cpuinfo_tmp);
700 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
701 &cpuinfo_tmp, &cpuinfo_size, NULL, 0);
705 ERROR ("cpu plugin: sysctl failed: %s.",
706 sstrerror (errno, errbuf, sizeof (errbuf)));
710 for(i = 0; i < CPUSTATES; i++) {
711 cpuinfo[0][i] = cpuinfo_tmp[i];
715 for (i = 0; i < numcpu; i++) {
716 derive_t derives[CPU_SUBMIT_MAX] = {
717 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
720 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
721 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
722 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
723 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
724 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
728 /* #endif CAN_USE_SYSCTL */
729 #elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES)
730 long cpuinfo[maxcpu][CPUSTATES];
734 memset (cpuinfo, 0, sizeof (cpuinfo));
736 cpuinfo_size = sizeof (cpuinfo);
737 if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
740 ERROR ("cpu plugin: sysctlbyname failed: %s.",
741 sstrerror (errno, errbuf, sizeof (errbuf)));
745 for (i = 0; i < numcpu; i++) {
746 derive_t derives[CPU_SUBMIT_MAX] = {
747 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
750 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
751 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
752 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
753 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
754 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
759 /* #endif HAVE_SYSCTL_KERN_CP_TIMES */
760 #elif defined(HAVE_SYSCTLBYNAME)
761 long cpuinfo[CPUSTATES];
763 derive_t derives[CPU_SUBMIT_MAX] = {
764 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
767 cpuinfo_size = sizeof (cpuinfo);
769 if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
772 ERROR ("cpu plugin: sysctlbyname failed: %s.",
773 sstrerror (errno, errbuf, sizeof (errbuf)));
777 derives[CPU_SUBMIT_USER] = cpuinfo[CP_USER];
778 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[CP_SYS];
779 derives[CPU_SUBMIT_NICE] = cpuinfo[CP_NICE];
780 derives[CPU_SUBMIT_IDLE] = cpuinfo[CP_IDLE];
781 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[CP_INTR];
785 /* #endif HAVE_SYSCTLBYNAME */
787 #elif defined(HAVE_LIBSTATGRAB)
789 derive_t derives[CPU_SUBMIT_MAX] = {
790 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
792 cs = sg_get_cpu_stats ();
796 ERROR ("cpu plugin: sg_get_cpu_stats failed.");
800 derives[CPU_SUBMIT_IDLE] = (derive_t) cs->idle;
801 derives[CPU_SUBMIT_NICE] = (derive_t) cs->nice;
802 derives[CPU_SUBMIT_SWAP] = (derive_t) cs->swap;
803 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cs->kernel;
804 derives[CPU_SUBMIT_USER] = (derive_t) cs->user;
805 derives[CPU_SUBMIT_WAIT] = (derive_t) cs->iowait;
808 /* #endif HAVE_LIBSTATGRAB */
810 #elif defined(HAVE_PERFSTAT)
814 numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
818 WARNING ("cpu plugin: perfstat_cpu: %s",
819 sstrerror (errno, errbuf, sizeof (errbuf)));
823 if (pnumcpu != numcpu || perfcpu == NULL)
827 perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
832 if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0)
835 WARNING ("cpu plugin: perfstat_cpu: %s",
836 sstrerror (errno, errbuf, sizeof (errbuf)));
840 for (i = 0; i < cpus; i++)
842 derive_t derives[CPU_SUBMIT_MAX] = {
843 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
845 derives[CPU_SUBMIT_IDLE] = perfcpu[i].idle;
846 derives[CPU_SUBMIT_SYSTEM] = perfcpu[i].sys;
847 derives[CPU_SUBMIT_USER] = perfcpu[i].user;
848 derives[CPU_SUBMIT_WAIT] = perfcpu[i].wait;
852 #endif /* HAVE_PERFSTAT */
857 void module_register (void)
859 plugin_register_init ("cpu", init);
860 plugin_register_config ("cpu", cpu_config, config_keys, config_keys_num);
861 plugin_register_read ("cpu", cpu_read);
862 } /* void module_register */