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 *values = NULL;
174 static gauge_t agg_values[CPU_SUBMIT_MAX] = {
175 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
178 static int cpu_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;
200 if (strcasecmp (key, "ValuesPercentage") == 0) {
201 report_percent = IS_TRUE (value) ? 1 : 0;
203 if (strcasecmp (key, "ReportActive") == 0)
204 report_active = IS_TRUE (value) ? 1 : 0;
208 static int cpu_states_grow (void)
214 size = cpu_count * CPU_SUBMIT_MAX; /* always alloc for all states */
219 if (cpu_cells >= size)
222 if (values == NULL) {
223 values = malloc(size * sizeof(*values));
226 for (i = 0; i < size; i++)
227 memset(&values[i], 0, sizeof(*values));
232 tmp = realloc(values, size * sizeof(*values));
235 ERROR ("cpu plugin: could not reserve enough space to hold states");
242 for (i = cpu_cells ; i < size; i++)
243 memset(&values[i], 0, sizeof(*values));
247 } /* cpu_states_grow */
250 static int init (void)
252 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
253 kern_return_t status;
255 port_host = mach_host_self ();
257 /* FIXME: Free `cpu_list' if it's not NULL */
258 if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS)
260 ERROR ("cpu plugin: host_processors returned %i", (int) status);
265 DEBUG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors");
266 INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
268 cpu_temp_retry_max = 86400 / CDTIME_T_TO_TIME_T (plugin_get_interval ());
269 /* #endif PROCESSOR_CPU_LOAD_INFO */
271 #elif defined(HAVE_LIBKSTAT)
279 /* Solaris doesn't count linear.. *sigh* */
280 for (numcpu = 0, ksp_chain = kc->kc_chain;
281 (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
282 ksp_chain = ksp_chain->ks_next)
283 if (strncmp (ksp_chain->ks_module, "cpu_stat", 8) == 0)
284 ksp[numcpu++] = ksp_chain;
285 /* #endif HAVE_LIBKSTAT */
289 int mib[2] = {CTL_HW, HW_NCPU};
293 numcpu_size = sizeof (numcpu);
295 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
296 &numcpu, &numcpu_size, NULL, 0);
300 WARNING ("cpu plugin: sysctl: %s",
301 sstrerror (errno, errbuf, sizeof (errbuf)));
304 /* #endif CAN_USE_SYSCTL */
306 #elif defined (HAVE_SYSCTLBYNAME)
309 numcpu_size = sizeof (numcpu);
311 if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
314 WARNING ("cpu plugin: sysctlbyname(hw.ncpu): %s",
315 sstrerror (errno, errbuf, sizeof (errbuf)));
319 #ifdef HAVE_SYSCTL_KERN_CP_TIMES
320 numcpu_size = sizeof (maxcpu);
322 if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0)
325 WARNING ("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s",
326 sstrerror (errno, errbuf, sizeof (errbuf)));
331 NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
333 /* #endif HAVE_SYSCTLBYNAME */
335 #elif defined(HAVE_LIBSTATGRAB)
336 /* nothing to initialize */
337 /* #endif HAVE_LIBSTATGRAB */
339 #elif defined(HAVE_PERFSTAT)
340 /* nothing to initialize */
341 #endif /* HAVE_PERFSTAT */
346 static void submit_value (int cpu_num, int cpu_state, const char *type, value_t value)
349 value_list_t vl = VALUE_LIST_INIT;
351 memcpy(&values[0], &value, sizeof(value));
356 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
357 sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
358 sstrncpy (vl.type, type, sizeof (vl.type));
359 sstrncpy (vl.type_instance, cpu_state_names[cpu_state],
360 sizeof (vl.type_instance));
363 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
366 plugin_dispatch_values (&vl);
369 static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
373 value.gauge = percent;
374 submit_value (cpu_num, cpu_state, "percent", value);
377 static void submit_derive(int cpu_num, int cpu_state, derive_t derive)
381 value.derive = derive;
382 submit_value (cpu_num, cpu_state, "cpu", value);
385 static void submit_flush (void)
388 int cpu_submit_max = CPU_SUBMIT_MAX;
396 cpu_submit_max = CPU_SUBMIT_MAX;
398 cpu_submit_max = CPU_SUBMIT_ACTIVE;
399 for (i = 0; i < cpu_submit_max; i++) {
400 if (agg_values[i] == -1)
404 submit_percent(-1, i, agg_values[i] / cpu_count);
406 submit_derive(-1, i, agg_values[i]);
412 static void submit (int cpu_num, derive_t *derives)
416 int cpu_submit_max = CPU_SUBMIT_MAX;
419 cpu_submit_max = CPU_SUBMIT_MAX;
421 cpu_submit_max = CPU_SUBMIT_ACTIVE;
423 if (!report_percent && report_by_cpu) {
424 derive_t cpu_active = 0;
425 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++)
427 if (derives[i] == -1)
430 if (i != CPU_SUBMIT_IDLE)
431 cpu_active += derives[i];
433 submit_derive(cpu_num, i, derives[i]);
436 submit_derive(cpu_num, CPU_SUBMIT_ACTIVE, cpu_active);
441 gauge_t cpu_total = 0;
442 gauge_t cpu_active = 0;
443 gauge_t local_rates[CPU_SUBMIT_MAX];
446 if (cpu_states_grow())
449 memset(local_rates, 0, sizeof(local_rates));
452 for (i = 0; i < CPU_SUBMIT_ACTIVE; i++) {
453 if (report_percent) {
457 if (derives[i] == -1)
460 index = (cpu_num * CPU_SUBMIT_MAX) + i;
461 if (value_to_rate(&rate, derives[i], &values[index],
462 DS_TYPE_DERIVE, cdt) != 0) {
467 local_rates[i] = rate.gauge;
468 cpu_total += rate.gauge;
469 if (i != CPU_SUBMIT_IDLE)
470 cpu_active += rate.gauge;
473 cpu_total += derives[i];
474 if (i != CPU_SUBMIT_IDLE)
475 cpu_active += derives[i];
478 if (cpu_total == 0.0)
482 local_rates[CPU_SUBMIT_ACTIVE] = cpu_active;
484 for (i = 0; i < cpu_submit_max; i++) {
485 if (local_rates[i] == -1)
489 value = (local_rates[i] / cpu_total) * 100;
493 if (report_percent) {
494 submit_percent (cpu_num, i, value);
496 submit_derive(cpu_num, i, value);
500 if (agg_values[i] == -1)
501 agg_values[i] = value;
503 agg_values[i] += value;
509 static int cpu_read (void)
511 #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
514 kern_return_t status;
516 #if PROCESSOR_CPU_LOAD_INFO
517 processor_cpu_load_info_data_t cpu_info;
518 mach_msg_type_number_t cpu_info_len;
520 #if PROCESSOR_TEMPERATURE
521 processor_info_data_t cpu_temp;
522 mach_msg_type_number_t cpu_temp_len;
527 for (cpu = 0; cpu < cpu_list_len; cpu++)
529 #if PROCESSOR_CPU_LOAD_INFO
530 derive_t derives[CPU_SUBMIT_MAX] = {
531 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
533 memset(derives, -1, sizeof(derives));
535 cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
537 if ((status = processor_info (cpu_list[cpu],
538 PROCESSOR_CPU_LOAD_INFO, &cpu_host,
539 (processor_info_t) &cpu_info, &cpu_info_len)) != KERN_SUCCESS)
541 ERROR ("cpu plugin: processor_info failed with status %i", (int) status);
545 if (cpu_info_len < CPU_STATE_MAX)
547 ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
551 derives[CPU_SUBMIT_USER] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER];
552 derives[CPU_SUBMIT_NICE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE];
553 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM];
554 derives[CPU_SUBMIT_IDLE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE];
555 submit (cpu, derives);
557 #endif /* PROCESSOR_CPU_LOAD_INFO */
558 #if PROCESSOR_TEMPERATURE
560 * Not all Apple computers do have this ability. To minimize
561 * the messages sent to the syslog we do an exponential
562 * stepback if `processor_info' fails. We still try ~once a day
565 if (cpu_temp_retry_counter > 0)
567 cpu_temp_retry_counter--;
571 cpu_temp_len = PROCESSOR_INFO_MAX;
573 status = processor_info (cpu_list[cpu],
574 PROCESSOR_TEMPERATURE,
576 cpu_temp, &cpu_temp_len);
577 if (status != KERN_SUCCESS)
579 ERROR ("cpu plugin: processor_info failed: %s",
580 mach_error_string (status));
582 cpu_temp_retry_counter = cpu_temp_retry_step;
583 cpu_temp_retry_step *= 2;
584 if (cpu_temp_retry_step > cpu_temp_retry_max)
585 cpu_temp_retry_step = cpu_temp_retry_max;
590 if (cpu_temp_len != 1)
592 DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
597 cpu_temp_retry_counter = 0;
598 cpu_temp_retry_step = 1;
599 #endif /* PROCESSOR_TEMPERATURE */
602 /* #endif PROCESSOR_CPU_LOAD_INFO */
604 #elif defined(KERNEL_LINUX)
612 if ((fh = fopen ("/proc/stat", "r")) == NULL)
615 ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
616 sstrerror (errno, errbuf, sizeof (errbuf)));
620 while (fgets (buf, 1024, fh) != NULL)
622 derive_t derives[CPU_SUBMIT_MAX] = {
623 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
626 if (strncmp (buf, "cpu", 3))
628 if ((buf[3] < '0') || (buf[3] > '9'))
631 numfields = strsplit (buf, fields, 9);
635 cpu = atoi (fields[0] + 3);
636 derives[CPU_SUBMIT_USER] = atoll(fields[1]);
637 derives[CPU_SUBMIT_NICE] = atoll(fields[2]);
638 derives[CPU_SUBMIT_SYSTEM] = atoll(fields[3]);
639 derives[CPU_SUBMIT_IDLE] = atoll(fields[4]);
643 derives[CPU_SUBMIT_WAIT] = atoll(fields[5]);
644 derives[CPU_SUBMIT_INTERRUPT] = atoll(fields[6]);
645 derives[CPU_SUBMIT_SOFTIRQ] = atoll(fields[6]);
648 derives[CPU_SUBMIT_STEAL] = atoll(fields[8]);
650 submit(cpu, derives);
655 /* #endif defined(KERNEL_LINUX) */
657 #elif defined(HAVE_LIBKSTAT)
659 static cpu_stat_t cs;
664 for (cpu = 0; cpu < numcpu; cpu++)
666 derive_t derives[CPU_SUBMIT_MAX] = {
667 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
670 if (kstat_read (kc, ksp[cpu], &cs) == -1)
671 continue; /* error message? */
673 memset(derives, -1, sizeof(derives));
674 derives[CPU_SUBMIT_IDLE] = cs.cpu_sysinfo.cpu[CPU_IDLE];
675 derives[CPU_SUBMIT_USER] = cs.cpu_sysinfo.cpu[CPU_USER];
676 derives[CPU_SUBMIT_SYSTEM] = cs.cpu_sysinfo.cpu[CPU_KERNEL];
677 derives[CPU_SUBMIT_WAIT] = cs.cpu_sysinfo.cpu[CPU_WAIT];
678 submit (ksp[cpu]->ks_instance, derives);
681 /* #endif defined(HAVE_LIBKSTAT) */
684 uint64_t cpuinfo[numcpu][CPUSTATES];
691 ERROR ("cpu plugin: Could not determine number of "
692 "installed CPUs using sysctl(3).");
696 memset (cpuinfo, 0, sizeof (cpuinfo));
698 #if defined(KERN_CPTIME2)
700 for (i = 0; i < numcpu; i++) {
701 int mib[] = {CTL_KERN, KERN_CPTIME2, i};
703 cpuinfo_size = sizeof (cpuinfo[0]);
705 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
706 cpuinfo[i], &cpuinfo_size, NULL, 0);
709 ERROR ("cpu plugin: sysctl failed: %s.",
710 sstrerror (errno, errbuf, sizeof (errbuf)));
716 #endif /* defined(KERN_CPTIME2) */
718 int mib[] = {CTL_KERN, KERN_CPTIME};
719 long cpuinfo_tmp[CPUSTATES];
721 cpuinfo_size = sizeof(cpuinfo_tmp);
723 status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
724 &cpuinfo_tmp, &cpuinfo_size, NULL, 0);
728 ERROR ("cpu plugin: sysctl failed: %s.",
729 sstrerror (errno, errbuf, sizeof (errbuf)));
733 for(i = 0; i < CPUSTATES; i++) {
734 cpuinfo[0][i] = cpuinfo_tmp[i];
738 for (i = 0; i < numcpu; i++) {
739 derive_t derives[CPU_SUBMIT_MAX] = {
740 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
743 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
744 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
745 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
746 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
747 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
751 /* #endif CAN_USE_SYSCTL */
752 #elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES)
753 long cpuinfo[maxcpu][CPUSTATES];
757 memset (cpuinfo, 0, sizeof (cpuinfo));
759 cpuinfo_size = sizeof (cpuinfo);
760 if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
763 ERROR ("cpu plugin: sysctlbyname failed: %s.",
764 sstrerror (errno, errbuf, sizeof (errbuf)));
768 for (i = 0; i < numcpu; i++) {
769 derive_t derives[CPU_SUBMIT_MAX] = {
770 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
773 derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
774 derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
775 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
776 derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
777 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
782 /* #endif HAVE_SYSCTL_KERN_CP_TIMES */
783 #elif defined(HAVE_SYSCTLBYNAME)
784 long cpuinfo[CPUSTATES];
786 derive_t derives[CPU_SUBMIT_MAX] = {
787 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
790 cpuinfo_size = sizeof (cpuinfo);
792 if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
795 ERROR ("cpu plugin: sysctlbyname failed: %s.",
796 sstrerror (errno, errbuf, sizeof (errbuf)));
800 derives[CPU_SUBMIT_USER] = cpuinfo[CP_USER];
801 derives[CPU_SUBMIT_SYSTEM] = cpuinfo[CP_SYS];
802 derives[CPU_SUBMIT_NICE] = cpuinfo[CP_NICE];
803 derives[CPU_SUBMIT_IDLE] = cpuinfo[CP_IDLE];
804 derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[CP_INTR];
808 /* #endif HAVE_SYSCTLBYNAME */
810 #elif defined(HAVE_LIBSTATGRAB)
812 derive_t derives[CPU_SUBMIT_MAX] = {
813 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
815 cs = sg_get_cpu_stats ();
819 ERROR ("cpu plugin: sg_get_cpu_stats failed.");
823 derives[CPU_SUBMIT_IDLE] = (derive_t) cs->idle;
824 derives[CPU_SUBMIT_NICE] = (derive_t) cs->nice;
825 derives[CPU_SUBMIT_SWAP] = (derive_t) cs->swap;
826 derives[CPU_SUBMIT_SYSTEM] = (derive_t) cs->kernel;
827 derives[CPU_SUBMIT_USER] = (derive_t) cs->user;
828 derives[CPU_SUBMIT_WAIT] = (derive_t) cs->iowait;
831 /* #endif HAVE_LIBSTATGRAB */
833 #elif defined(HAVE_PERFSTAT)
837 numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
841 WARNING ("cpu plugin: perfstat_cpu: %s",
842 sstrerror (errno, errbuf, sizeof (errbuf)));
846 if (pnumcpu != numcpu || perfcpu == NULL)
850 perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
855 if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0)
858 WARNING ("cpu plugin: perfstat_cpu: %s",
859 sstrerror (errno, errbuf, sizeof (errbuf)));
863 for (i = 0; i < cpus; i++)
865 derive_t derives[CPU_SUBMIT_MAX] = {
866 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
868 derives[CPU_SUBMIT_IDLE] = perfcpu[i].idle;
869 derives[CPU_SUBMIT_SYSTEM] = perfcpu[i].sys;
870 derives[CPU_SUBMIT_USER] = perfcpu[i].user;
871 derives[CPU_SUBMIT_WAIT] = perfcpu[i].wait;
875 #endif /* HAVE_PERFSTAT */
880 void module_register (void)
882 plugin_register_init ("cpu", init);
883 plugin_register_config ("cpu", cpu_config, config_keys, config_keys_num);
884 plugin_register_read ("cpu", cpu_read);
885 } /* void module_register */