/**
* collectd - src/cpu.c
- * Copyright (C) 2005-2010 Florian octo Forster
+ * Copyright (C) 2005-2014 Florian octo Forster
* Copyright (C) 2008 Oleg King
* Copyright (C) 2009 Simon Kuhnle
* Copyright (C) 2009 Manuel Sanmartin
+ * Copyright (C) 2013-2014 Pierre-Yves Ritschard
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
* Oleg King <king2 at kaluga.ru>
* Simon Kuhnle <simon at blarzwurst.de>
* Manuel Sanmartin
+ * Pierre-Yves Ritschard <pyr at spootnik.org>
**/
#include "collectd.h"
+
#include "common.h"
#include "plugin.h"
#ifdef HAVE_MACH_KERN_RETURN_H
-# include <mach/kern_return.h>
+#include <mach/kern_return.h>
#endif
#ifdef HAVE_MACH_MACH_INIT_H
-# include <mach/mach_init.h>
+#include <mach/mach_init.h>
#endif
#ifdef HAVE_MACH_HOST_PRIV_H
-# include <mach/host_priv.h>
+#include <mach/host_priv.h>
#endif
#if HAVE_MACH_MACH_ERROR_H
-# include <mach/mach_error.h>
+#include <mach/mach_error.h>
#endif
#ifdef HAVE_MACH_PROCESSOR_INFO_H
-# include <mach/processor_info.h>
+#include <mach/processor_info.h>
#endif
#ifdef HAVE_MACH_PROCESSOR_H
-# include <mach/processor.h>
+#include <mach/processor.h>
#endif
#ifdef HAVE_MACH_VM_MAP_H
-# include <mach/vm_map.h>
+#include <mach/vm_map.h>
#endif
#ifdef HAVE_LIBKSTAT
-# include <sys/sysinfo.h>
+#include <sys/sysinfo.h>
#endif /* HAVE_LIBKSTAT */
-#if (defined(HAVE_SYSCTL) && HAVE_SYSCTL) \
- || (defined(HAVE_SYSCTLBYNAME) && HAVE_SYSCTLBYNAME)
-# ifdef HAVE_SYS_SYSCTL_H
-# include <sys/sysctl.h>
-# endif
-
-# ifdef HAVE_SYS_DKSTAT_H
-# include <sys/dkstat.h>
-# endif
-
-# if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
-# define CP_USER 0
-# define CP_NICE 1
-# define CP_SYS 2
-# define CP_INTR 3
-# define CP_IDLE 4
-# define CPUSTATES 5
-# endif
+#if (defined(HAVE_SYSCTL) && HAVE_SYSCTL) || \
+ (defined(HAVE_SYSCTLBYNAME) && HAVE_SYSCTLBYNAME)
+#ifdef HAVE_SYS_SYSCTL_H
+#include <sys/sysctl.h>
+#endif
+
+#ifdef HAVE_SYS_DKSTAT_H
+#include <sys/dkstat.h>
+#endif
+
+#if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || \
+ !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
+#define CP_USER 0
+#define CP_NICE 1
+#define CP_SYS 2
+#define CP_INTR 3
+#define CP_IDLE 4
+#define CPUSTATES 5
+#endif
#endif /* HAVE_SYSCTL || HAVE_SYSCTLBYNAME */
#if HAVE_SYSCTL
-# if defined(CTL_HW) && defined(HW_NCPU) \
- && defined(CTL_KERN) && defined(KERN_CPTIME) && defined(CPUSTATES)
-# define CAN_USE_SYSCTL 1
-# else
-# define CAN_USE_SYSCTL 0
-# endif
+#if defined(CTL_HW) && defined(HW_NCPU) && defined(CTL_KERN) && \
+ defined(KERN_CPTIME) && defined(CPUSTATES)
+#define CAN_USE_SYSCTL 1
#else
-# define CAN_USE_SYSCTL 0
+#define CAN_USE_SYSCTL 0
#endif
+#else
+#define CAN_USE_SYSCTL 0
+#endif
+
+#define COLLECTD_CPU_STATE_USER 0
+#define COLLECTD_CPU_STATE_SYSTEM 1
+#define COLLECTD_CPU_STATE_WAIT 2
+#define COLLECTD_CPU_STATE_NICE 3
+#define COLLECTD_CPU_STATE_SWAP 4
+#define COLLECTD_CPU_STATE_INTERRUPT 5
+#define COLLECTD_CPU_STATE_SOFTIRQ 6
+#define COLLECTD_CPU_STATE_STEAL 7
+#define COLLECTD_CPU_STATE_GUEST 8
+#define COLLECTD_CPU_STATE_GUEST_NICE 9
+#define COLLECTD_CPU_STATE_IDLE 10
+#define COLLECTD_CPU_STATE_ACTIVE 11 /* sum of (!idle) */
+#define COLLECTD_CPU_STATE_MAX 12 /* #states */
#if HAVE_STATGRAB_H
-# include <statgrab.h>
+#include <statgrab.h>
#endif
-# ifdef HAVE_PERFSTAT
-# include <sys/protosw.h>
-# include <libperfstat.h>
-# endif /* HAVE_PERFSTAT */
+#ifdef HAVE_PERFSTAT
+#include <libperfstat.h>
+#include <sys/protosw.h>
+#endif /* HAVE_PERFSTAT */
-#if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT \
- && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
-# error "No applicable input method."
+#if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT && \
+ !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && \
+ !HAVE_PERFSTAT
+#error "No applicable input method."
#endif
+static const char *cpu_state_names[] = {
+ "user", "system", "wait", "nice", "swap", "interrupt",
+ "softirq", "steal", "guest", "guest_nice", "idle", "active"};
+
#ifdef PROCESSOR_CPU_LOAD_INFO
static mach_port_t port_host;
static processor_port_array_t cpu_list;
/* #endif KERNEL_LINUX */
#elif defined(HAVE_LIBKSTAT)
-/* colleague tells me that Sun doesn't sell systems with more than 100 or so CPUs.. */
-# define MAX_NUMCPU 256
+#if HAVE_KSTAT_H
+#include <kstat.h>
+#endif
+/* colleague tells me that Sun doesn't sell systems with more than 100 or so
+ * CPUs.. */
+#define MAX_NUMCPU 256
extern kstat_ctl_t *kc;
static kstat_t *ksp[MAX_NUMCPU];
static int numcpu;
#elif defined(HAVE_SYSCTLBYNAME)
static int numcpu;
-# ifdef HAVE_SYSCTL_KERN_CP_TIMES
+#ifdef HAVE_SYSCTL_KERN_CP_TIMES
static int maxcpu;
-# endif /* HAVE_SYSCTL_KERN_CP_TIMES */
+#endif /* HAVE_SYSCTL_KERN_CP_TIMES */
/* #endif HAVE_SYSCTLBYNAME */
#elif defined(HAVE_LIBSTATGRAB)
/* #endif HAVE_LIBSTATGRAB */
#elif defined(HAVE_PERFSTAT)
+#define TOTAL_IDLE 0
+#define TOTAL_USER 1
+#define TOTAL_SYS 2
+#define TOTAL_WAIT 3
+#define TOTAL_STAT_NUM 4
+static value_to_rate_state_t total_conv[TOTAL_STAT_NUM];
static perfstat_cpu_t *perfcpu;
static int numcpu;
static int pnumcpu;
#endif /* HAVE_PERFSTAT */
-static int init (void)
+#define RATE_ADD(sum, val) \
+ do { \
+ if (isnan(sum)) \
+ (sum) = (val); \
+ else if (!isnan(val)) \
+ (sum) += (val); \
+ } while (0)
+
+struct cpu_state_s {
+ value_to_rate_state_t conv;
+ gauge_t rate;
+ bool has_value;
+};
+typedef struct cpu_state_s cpu_state_t;
+
+static cpu_state_t *cpu_states = NULL;
+static size_t cpu_states_num = 0; /* #cpu_states allocated */
+
+/* Highest CPU number in the current iteration. Used by the dispatch logic to
+ * determine how many CPUs there were. Reset to 0 by cpu_reset(). */
+static size_t global_cpu_num = 0;
+
+static bool report_by_cpu = 1;
+static bool report_by_state = 1;
+static bool report_percent = 0;
+static bool report_num_cpu = 0;
+static bool report_guest = 0;
+static bool subtract_guest = 1;
+
+static const char *config_keys[] = {"ReportByCpu", "ReportByState",
+ "ReportNumCpu", "ValuesPercentage",
+ "ReportGuestState", "SubtractGuestState"};
+static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
+
+static int cpu_config(char const *key, char const *value) /* {{{ */
{
+ if (strcasecmp(key, "ReportByCpu") == 0)
+ report_by_cpu = IS_TRUE(value) ? 1 : 0;
+ else if (strcasecmp(key, "ValuesPercentage") == 0)
+ report_percent = IS_TRUE(value) ? 1 : 0;
+ else if (strcasecmp(key, "ReportByState") == 0)
+ report_by_state = IS_TRUE(value) ? 1 : 0;
+ else if (strcasecmp(key, "ReportNumCpu") == 0)
+ report_num_cpu = IS_TRUE(value) ? 1 : 0;
+ else if (strcasecmp(key, "ReportGuestState") == 0)
+ report_guest = IS_TRUE(value) ? 1 : 0;
+ else if (strcasecmp(key, "SubtractGuestState") == 0)
+ subtract_guest = IS_TRUE(value) ? 1 : 0;
+ else
+ return -1;
+
+ return 0;
+} /* }}} int cpu_config */
+
+static int init(void) {
#if PROCESSOR_CPU_LOAD_INFO
- kern_return_t status;
-
- port_host = mach_host_self ();
-
- status = host_processors (port_host, &cpu_list, &cpu_list_len);
- if (status == KERN_INVALID_ARGUMENT)
- {
- ERROR ("cpu plugin: Don't have a privileged host control port. "
- "The most common cause for this problem is "
- "that collectd is running without root "
- "privileges, which are required to read CPU "
- "load information. "
- "<https://collectd.org/bugs/22>");
- cpu_list_len = 0;
- return (-1);
- }
- if (status != KERN_SUCCESS)
- {
- ERROR ("cpu plugin: host_processors() failed with status %d.", (int) status);
- cpu_list_len = 0;
- return (-1);
- }
-
- INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
+ kern_return_t status;
+
+ port_host = mach_host_self();
+
+ status = host_processors(port_host, &cpu_list, &cpu_list_len);
+ if (status == KERN_INVALID_ARGUMENT) {
+ ERROR("cpu plugin: Don't have a privileged host control port. "
+ "The most common cause for this problem is "
+ "that collectd is running without root "
+ "privileges, which are required to read CPU "
+ "load information. "
+ "<https://collectd.org/bugs/22>");
+ cpu_list_len = 0;
+ return -1;
+ }
+ if (status != KERN_SUCCESS) {
+ ERROR("cpu plugin: host_processors() failed with status %d.", (int)status);
+ cpu_list_len = 0;
+ return -1;
+ }
+
+ INFO("cpu plugin: Found %i processor%s.", (int)cpu_list_len,
+ cpu_list_len == 1 ? "" : "s");
/* #endif PROCESSOR_CPU_LOAD_INFO */
#elif defined(HAVE_LIBKSTAT)
- kstat_t *ksp_chain;
+ kstat_t *ksp_chain;
- numcpu = 0;
+ numcpu = 0;
- if (kc == NULL)
- return (-1);
+ if (kc == NULL)
+ return -1;
- /* Solaris doesn't count linear.. *sigh* */
- for (numcpu = 0, ksp_chain = kc->kc_chain;
- (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
- ksp_chain = ksp_chain->ks_next)
- if (strncmp (ksp_chain->ks_module, "cpu_stat", 8) == 0)
- ksp[numcpu++] = ksp_chain;
+ /* Solaris doesn't count linear.. *sigh* */
+ for (numcpu = 0, ksp_chain = kc->kc_chain;
+ (numcpu < MAX_NUMCPU) && (ksp_chain != NULL);
+ ksp_chain = ksp_chain->ks_next)
+ if (strncmp(ksp_chain->ks_module, "cpu_stat", 8) == 0)
+ ksp[numcpu++] = ksp_chain;
/* #endif HAVE_LIBKSTAT */
#elif CAN_USE_SYSCTL
- size_t numcpu_size;
- int mib[2] = {CTL_HW, HW_NCPU};
- int status;
-
- numcpu = 0;
- numcpu_size = sizeof (numcpu);
-
- status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
- &numcpu, &numcpu_size, NULL, 0);
- if (status == -1)
- {
- char errbuf[1024];
- WARNING ("cpu plugin: sysctl: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
+ size_t numcpu_size;
+ int mib[2] = {CTL_HW, HW_NCPU};
+ int status;
+
+ numcpu = 0;
+ numcpu_size = sizeof(numcpu);
+
+ status = sysctl(mib, STATIC_ARRAY_SIZE(mib), &numcpu, &numcpu_size, NULL, 0);
+ if (status == -1) {
+ WARNING("cpu plugin: sysctl: %s", STRERRNO);
+ return -1;
+ }
/* #endif CAN_USE_SYSCTL */
-#elif defined (HAVE_SYSCTLBYNAME)
- size_t numcpu_size;
+#elif defined(HAVE_SYSCTLBYNAME)
+ size_t numcpu_size;
- numcpu_size = sizeof (numcpu);
+ numcpu_size = sizeof(numcpu);
- if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
- {
- char errbuf[1024];
- WARNING ("cpu plugin: sysctlbyname(hw.ncpu): %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
+ if (sysctlbyname("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0) {
+ WARNING("cpu plugin: sysctlbyname(hw.ncpu): %s", STRERRNO);
+ return -1;
+ }
#ifdef HAVE_SYSCTL_KERN_CP_TIMES
- numcpu_size = sizeof (maxcpu);
-
- if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0)
- {
- char errbuf[1024];
- WARNING ("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
+ numcpu_size = sizeof(maxcpu);
+
+ if (sysctlbyname("kern.smp.maxcpus", &maxcpu, &numcpu_size, NULL, 0) < 0) {
+ WARNING("cpu plugin: sysctlbyname(kern.smp.maxcpus): %s", STRERRNO);
+ return -1;
+ }
#else
- if (numcpu != 1)
- NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
+ if (numcpu != 1)
+ NOTICE("cpu: Only one processor supported when using `sysctlbyname' (found "
+ "%i)",
+ numcpu);
#endif
/* #endif HAVE_SYSCTLBYNAME */
#elif defined(HAVE_LIBSTATGRAB)
- /* nothing to initialize */
+/* nothing to initialize */
/* #endif HAVE_LIBSTATGRAB */
#elif defined(HAVE_PERFSTAT)
- /* nothing to initialize */
+/* nothing to initialize */
#endif /* HAVE_PERFSTAT */
- return (0);
+ return 0;
} /* int init */
-static void submit (int cpu_num, const char *type_instance, derive_t value)
+static void submit_value(int cpu_num, int cpu_state, const char *type,
+ value_t value) {
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = &value;
+ vl.values_len = 1;
+
+ sstrncpy(vl.plugin, "cpu", sizeof(vl.plugin));
+ sstrncpy(vl.type, type, sizeof(vl.type));
+ sstrncpy(vl.type_instance, cpu_state_names[cpu_state],
+ sizeof(vl.type_instance));
+
+ if (cpu_num >= 0) {
+ snprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%i", cpu_num);
+ }
+ plugin_dispatch_values(&vl);
+}
+
+static void submit_percent(int cpu_num, int cpu_state, gauge_t value) {
+ /* This function is called for all known CPU states, but each read
+ * method will only report a subset. The remaining states are left as
+ * NAN and we ignore them here. */
+ if (isnan(value))
+ return;
+
+ submit_value(cpu_num, cpu_state, "percent", (value_t){.gauge = value});
+}
+
+static void submit_derive(int cpu_num, int cpu_state, derive_t value) {
+ submit_value(cpu_num, cpu_state, "cpu", (value_t){.derive = value});
+}
+
+/* Takes the zero-index number of a CPU and makes sure that the module-global
+ * cpu_states buffer is large enough. Returne ENOMEM on erorr. */
+static int cpu_states_alloc(size_t cpu_num) /* {{{ */
+{
+ cpu_state_t *tmp;
+ size_t sz;
+
+ sz = (((size_t)cpu_num) + 1) * COLLECTD_CPU_STATE_MAX;
+ assert(sz > 0);
+
+ /* We already have enough space. */
+ if (cpu_states_num >= sz)
+ return 0;
+
+ tmp = realloc(cpu_states, sz * sizeof(*cpu_states));
+ if (tmp == NULL) {
+ ERROR("cpu plugin: realloc failed.");
+ return ENOMEM;
+ }
+ cpu_states = tmp;
+ tmp = cpu_states + cpu_states_num;
+
+ memset(tmp, 0, (sz - cpu_states_num) * sizeof(*cpu_states));
+ cpu_states_num = sz;
+ return 0;
+} /* }}} cpu_states_alloc */
+
+static cpu_state_t *get_cpu_state(size_t cpu_num, size_t state) /* {{{ */
{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
+ size_t index = ((cpu_num * COLLECTD_CPU_STATE_MAX) + state);
- values[0].derive = value;
+ if (index >= cpu_states_num)
+ return NULL;
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
- ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
- "%i", cpu_num);
- sstrncpy (vl.type, "cpu", sizeof (vl.type));
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ return &cpu_states[index];
+} /* }}} cpu_state_t *get_cpu_state */
- plugin_dispatch_values (&vl);
+#if defined(HAVE_PERFSTAT) /* {{{ */
+/* populate global aggregate cpu rate */
+static int total_rate(gauge_t *sum_by_state, size_t state, derive_t d,
+ value_to_rate_state_t *conv, cdtime_t now) {
+ gauge_t rate = NAN;
+ int status =
+ value_to_rate(&rate, (value_t){.derive = d}, DS_TYPE_DERIVE, now, conv);
+ if (status != 0)
+ return status;
+
+ sum_by_state[state] = rate;
+
+ if (state != COLLECTD_CPU_STATE_IDLE)
+ RATE_ADD(sum_by_state[COLLECTD_CPU_STATE_ACTIVE], sum_by_state[state]);
+ return 0;
}
+#endif /* }}} HAVE_PERFSTAT */
-static int cpu_read (void)
+/* Populates the per-CPU COLLECTD_CPU_STATE_ACTIVE rate and the global
+ * rate_by_state
+ * array. */
+static void aggregate(gauge_t *sum_by_state) /* {{{ */
{
-#if PROCESSOR_CPU_LOAD_INFO
- int cpu;
-
- kern_return_t status;
-
- processor_cpu_load_info_data_t cpu_info;
- mach_msg_type_number_t cpu_info_len;
-
- host_t cpu_host;
-
- for (cpu = 0; cpu < cpu_list_len; cpu++)
- {
- cpu_host = 0;
- cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
-
- status = processor_info (cpu_list[cpu], PROCESSOR_CPU_LOAD_INFO, &cpu_host,
- (processor_info_t) &cpu_info, &cpu_info_len);
- if (status != KERN_SUCCESS)
- {
- ERROR ("cpu plugin: processor_info (PROCESSOR_CPU_LOAD_INFO) failed: %s",
- mach_error_string (status));
- continue;
- }
-
- if (cpu_info_len < CPU_STATE_MAX)
- {
- ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
- continue;
- }
-
- submit (cpu, "user", (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER]);
- submit (cpu, "nice", (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE]);
- submit (cpu, "system", (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM]);
- submit (cpu, "idle", (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE]);
- }
-/* #endif PROCESSOR_CPU_LOAD_INFO */
+ for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
+ sum_by_state[state] = NAN;
+
+ for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
+ cpu_state_t *this_cpu_states = get_cpu_state(cpu_num, 0);
+
+ this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate = NAN;
+
+ for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
+ if (!this_cpu_states[state].has_value)
+ continue;
+
+ RATE_ADD(sum_by_state[state], this_cpu_states[state].rate);
+ if (state != COLLECTD_CPU_STATE_IDLE)
+ RATE_ADD(this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate,
+ this_cpu_states[state].rate);
+ }
+
+ if (!isnan(this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate))
+ this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].has_value = 1;
+
+ RATE_ADD(sum_by_state[COLLECTD_CPU_STATE_ACTIVE],
+ this_cpu_states[COLLECTD_CPU_STATE_ACTIVE].rate);
+ }
+
+#if defined(HAVE_PERFSTAT) /* {{{ */
+ cdtime_t now = cdtime();
+ perfstat_cpu_total_t cputotal = {0};
+
+ if (!perfstat_cpu_total(NULL, &cputotal, sizeof(cputotal), 1)) {
+ WARNING("cpu plugin: perfstat_cpu_total: %s", STRERRNO);
+ return;
+ }
+
+ /* Reset COLLECTD_CPU_STATE_ACTIVE */
+ sum_by_state[COLLECTD_CPU_STATE_ACTIVE] = NAN;
+
+ /* Physical Processor Utilization */
+ total_rate(sum_by_state, COLLECTD_CPU_STATE_IDLE, (derive_t)cputotal.pidle,
+ &total_conv[TOTAL_IDLE], now);
+ total_rate(sum_by_state, COLLECTD_CPU_STATE_USER, (derive_t)cputotal.puser,
+ &total_conv[TOTAL_USER], now);
+ total_rate(sum_by_state, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cputotal.psys,
+ &total_conv[TOTAL_SYS], now);
+ total_rate(sum_by_state, COLLECTD_CPU_STATE_WAIT, (derive_t)cputotal.pwait,
+ &total_conv[TOTAL_WAIT], now);
+#endif /* }}} HAVE_PERFSTAT */
+} /* }}} void aggregate */
+
+/* Commits (dispatches) the values for one CPU or the global aggregation.
+ * cpu_num is the index of the CPU to be committed or -1 in case of the global
+ * aggregation. rates is a pointer to COLLECTD_CPU_STATE_MAX gauge_t values
+ * holding the
+ * current rate; each rate may be NAN. Calculates the percentage of each state
+ * and dispatches the metric. */
+static void cpu_commit_one(int cpu_num, /* {{{ */
+ gauge_t rates[static COLLECTD_CPU_STATE_MAX]) {
+ gauge_t sum;
+
+ sum = rates[COLLECTD_CPU_STATE_ACTIVE];
+ RATE_ADD(sum, rates[COLLECTD_CPU_STATE_IDLE]);
+
+ if (!report_by_state) {
+ gauge_t percent = 100.0 * rates[COLLECTD_CPU_STATE_ACTIVE] / sum;
+ submit_percent(cpu_num, COLLECTD_CPU_STATE_ACTIVE, percent);
+ return;
+ }
+
+ for (size_t state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
+ gauge_t percent = 100.0 * rates[state] / sum;
+ submit_percent(cpu_num, state, percent);
+ }
+} /* }}} void cpu_commit_one */
+
+/* Commits the number of cores */
+static void cpu_commit_num_cpu(gauge_t value) /* {{{ */
+{
+ value_list_t vl = VALUE_LIST_INIT;
-#elif defined(KERNEL_LINUX)
- int cpu;
- derive_t user, nice, syst, idle;
- derive_t wait, intr, sitr; /* sitr == soft interrupt */
- FILE *fh;
- char buf[1024];
-
- char *fields[9];
- int numfields;
-
- if ((fh = fopen ("/proc/stat", "r")) == NULL)
- {
- char errbuf[1024];
- ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- while (fgets (buf, 1024, fh) != NULL)
- {
- if (strncmp (buf, "cpu", 3))
- continue;
- if ((buf[3] < '0') || (buf[3] > '9'))
- continue;
-
- numfields = strsplit (buf, fields, 9);
- if (numfields < 5)
- continue;
-
- cpu = atoi (fields[0] + 3);
- user = atoll (fields[1]);
- nice = atoll (fields[2]);
- syst = atoll (fields[3]);
- idle = atoll (fields[4]);
-
- submit (cpu, "user", user);
- submit (cpu, "nice", nice);
- submit (cpu, "system", syst);
- submit (cpu, "idle", idle);
-
- if (numfields >= 8)
- {
- wait = atoll (fields[5]);
- intr = atoll (fields[6]);
- sitr = atoll (fields[7]);
-
- submit (cpu, "wait", wait);
- submit (cpu, "interrupt", intr);
- submit (cpu, "softirq", sitr);
-
- if (numfields >= 9)
- submit (cpu, "steal", atoll (fields[8]));
- }
- }
-
- fclose (fh);
-/* #endif defined(KERNEL_LINUX) */
+ vl.values = &(value_t){.gauge = value};
+ vl.values_len = 1;
-#elif defined(HAVE_LIBKSTAT)
- int cpu;
- derive_t user, syst, idle, wait;
- static cpu_stat_t cs;
-
- if (kc == NULL)
- return (-1);
-
- for (cpu = 0; cpu < numcpu; cpu++)
- {
- if (kstat_read (kc, ksp[cpu], &cs) == -1)
- continue; /* error message? */
-
- idle = (derive_t) cs.cpu_sysinfo.cpu[CPU_IDLE];
- user = (derive_t) cs.cpu_sysinfo.cpu[CPU_USER];
- syst = (derive_t) cs.cpu_sysinfo.cpu[CPU_KERNEL];
- wait = (derive_t) cs.cpu_sysinfo.cpu[CPU_WAIT];
-
- submit (ksp[cpu]->ks_instance, "user", user);
- submit (ksp[cpu]->ks_instance, "system", syst);
- submit (ksp[cpu]->ks_instance, "idle", idle);
- submit (ksp[cpu]->ks_instance, "wait", wait);
- }
-/* #endif defined(HAVE_LIBKSTAT) */
+ sstrncpy(vl.plugin, "cpu", sizeof(vl.plugin));
+ sstrncpy(vl.type, "count", sizeof(vl.type));
-#elif CAN_USE_SYSCTL
- uint64_t cpuinfo[numcpu][CPUSTATES];
- size_t cpuinfo_size;
- int status;
- int i;
+ plugin_dispatch_values(&vl);
+} /* }}} void cpu_commit_num_cpu */
- if (numcpu < 1)
- {
- ERROR ("cpu plugin: Could not determine number of "
- "installed CPUs using sysctl(3).");
- return (-1);
- }
+/* Resets the internal aggregation. This is called by the read callback after
+ * each iteration / after each call to cpu_commit(). */
+static void cpu_reset(void) /* {{{ */
+{
+ for (size_t i = 0; i < cpu_states_num; i++)
+ cpu_states[i].has_value = 0;
- memset (cpuinfo, 0, sizeof (cpuinfo));
+ global_cpu_num = 0;
+} /* }}} void cpu_reset */
-#if defined(KERN_CPTIME2)
- if (numcpu > 1) {
- for (i = 0; i < numcpu; i++) {
- int mib[] = {CTL_KERN, KERN_CPTIME2, i};
-
- cpuinfo_size = sizeof (cpuinfo[0]);
-
- status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
- cpuinfo[i], &cpuinfo_size, NULL, 0);
- if (status == -1) {
- char errbuf[1024];
- ERROR ("cpu plugin: sysctl failed: %s.",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
- }
- }
- else
-#endif /* defined(KERN_CPTIME2) */
- {
- int mib[] = {CTL_KERN, KERN_CPTIME};
- long cpuinfo_tmp[CPUSTATES];
-
- cpuinfo_size = sizeof(cpuinfo_tmp);
-
- status = sysctl (mib, STATIC_ARRAY_SIZE (mib),
- &cpuinfo_tmp, &cpuinfo_size, NULL, 0);
- if (status == -1)
- {
- char errbuf[1024];
- ERROR ("cpu plugin: sysctl failed: %s.",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- for(i = 0; i < CPUSTATES; i++) {
- cpuinfo[0][i] = cpuinfo_tmp[i];
- }
- }
-
- for (i = 0; i < numcpu; i++) {
- submit (i, "user", cpuinfo[i][CP_USER]);
- submit (i, "nice", cpuinfo[i][CP_NICE]);
- submit (i, "system", cpuinfo[i][CP_SYS]);
- submit (i, "idle", cpuinfo[i][CP_IDLE]);
- submit (i, "interrupt", cpuinfo[i][CP_INTR]);
- }
-/* #endif CAN_USE_SYSCTL */
-#elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES)
- long cpuinfo[maxcpu][CPUSTATES];
- size_t cpuinfo_size;
- int i;
-
- memset (cpuinfo, 0, sizeof (cpuinfo));
-
- cpuinfo_size = sizeof (cpuinfo);
- if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
- {
- char errbuf[1024];
- ERROR ("cpu plugin: sysctlbyname failed: %s.",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- for (i = 0; i < numcpu; i++) {
- submit (i, "user", cpuinfo[i][CP_USER]);
- submit (i, "nice", cpuinfo[i][CP_NICE]);
- submit (i, "system", cpuinfo[i][CP_SYS]);
- submit (i, "idle", cpuinfo[i][CP_IDLE]);
- submit (i, "interrupt", cpuinfo[i][CP_INTR]);
- }
-/* #endif HAVE_SYSCTL_KERN_CP_TIMES */
-#elif defined(HAVE_SYSCTLBYNAME)
- long cpuinfo[CPUSTATES];
- size_t cpuinfo_size;
-
- cpuinfo_size = sizeof (cpuinfo);
-
- if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
- {
- char errbuf[1024];
- ERROR ("cpu plugin: sysctlbyname failed: %s.",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- submit (0, "user", cpuinfo[CP_USER]);
- submit (0, "nice", cpuinfo[CP_NICE]);
- submit (0, "system", cpuinfo[CP_SYS]);
- submit (0, "idle", cpuinfo[CP_IDLE]);
- submit (0, "interrupt", cpuinfo[CP_INTR]);
-/* #endif HAVE_SYSCTLBYNAME */
+/* Legacy behavior: Dispatches the raw derive values without any aggregation. */
+static void cpu_commit_without_aggregation(void) /* {{{ */
+{
+ for (int state = 0; state < COLLECTD_CPU_STATE_ACTIVE; state++) {
+ for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
+ cpu_state_t *s = get_cpu_state(cpu_num, state);
-#elif defined(HAVE_LIBSTATGRAB)
- sg_cpu_stats *cs;
- cs = sg_get_cpu_stats ();
-
- if (cs == NULL)
- {
- ERROR ("cpu plugin: sg_get_cpu_stats failed.");
- return (-1);
- }
-
- submit (0, "idle", (derive_t) cs->idle);
- submit (0, "nice", (derive_t) cs->nice);
- submit (0, "swap", (derive_t) cs->swap);
- submit (0, "system", (derive_t) cs->kernel);
- submit (0, "user", (derive_t) cs->user);
- submit (0, "wait", (derive_t) cs->iowait);
-/* #endif HAVE_LIBSTATGRAB */
+ if (!s->has_value)
+ continue;
-#elif defined(HAVE_PERFSTAT)
- perfstat_id_t id;
- int i, cpus;
-
- numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
- if(numcpu == -1)
- {
- char errbuf[1024];
- WARNING ("cpu plugin: perfstat_cpu: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- if (pnumcpu != numcpu || perfcpu == NULL)
- {
- if (perfcpu != NULL)
- free(perfcpu);
- perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
- }
- pnumcpu = numcpu;
-
- id.name[0] = '\0';
- if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0)
- {
- char errbuf[1024];
- WARNING ("cpu plugin: perfstat_cpu: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- for (i = 0; i < cpus; i++)
- {
- submit (i, "idle", (derive_t) perfcpu[i].idle);
- submit (i, "system", (derive_t) perfcpu[i].sys);
- submit (i, "user", (derive_t) perfcpu[i].user);
- submit (i, "wait", (derive_t) perfcpu[i].wait);
- }
-#endif /* HAVE_PERFSTAT */
+ submit_derive((int)cpu_num, (int)state, s->conv.last_value.derive);
+ }
+ }
+} /* }}} void cpu_commit_without_aggregation */
- return (0);
+/* Aggregates the internal state and dispatches the metrics. */
+static void cpu_commit(void) /* {{{ */
+{
+ gauge_t global_rates[COLLECTD_CPU_STATE_MAX] = {
+ NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN /* Batman! */
+ };
+
+ if (report_num_cpu)
+ cpu_commit_num_cpu((gauge_t)global_cpu_num);
+
+ if (report_by_state && report_by_cpu && !report_percent) {
+ cpu_commit_without_aggregation();
+ return;
+ }
+
+ aggregate(global_rates);
+
+ if (!report_by_cpu) {
+ cpu_commit_one(-1, global_rates);
+ return;
+ }
+
+ for (size_t cpu_num = 0; cpu_num < global_cpu_num; cpu_num++) {
+ cpu_state_t *this_cpu_states = get_cpu_state(cpu_num, 0);
+ gauge_t local_rates[COLLECTD_CPU_STATE_MAX] = {
+ NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN};
+
+ for (size_t state = 0; state < COLLECTD_CPU_STATE_MAX; state++)
+ if (this_cpu_states[state].has_value)
+ local_rates[state] = this_cpu_states[state].rate;
+
+ cpu_commit_one((int)cpu_num, local_rates);
+ }
+} /* }}} void cpu_commit */
+
+/* Adds a derive value to the internal state. This should be used by each read
+ * function for each state. At the end of the iteration, the read function
+ * should call cpu_commit(). */
+static int cpu_stage(size_t cpu_num, size_t state, derive_t d,
+ cdtime_t now) /* {{{ */
+{
+ int status;
+ cpu_state_t *s;
+ gauge_t rate = NAN;
+ value_t val = {.derive = d};
+
+ if (state >= COLLECTD_CPU_STATE_ACTIVE)
+ return EINVAL;
+
+ status = cpu_states_alloc(cpu_num);
+ if (status != 0)
+ return status;
+
+ if (global_cpu_num <= cpu_num)
+ global_cpu_num = cpu_num + 1;
+
+ s = get_cpu_state(cpu_num, state);
+
+ status = value_to_rate(&rate, val, DS_TYPE_DERIVE, now, &s->conv);
+ if (status != 0)
+ return status;
+
+ s->rate = rate;
+ s->has_value = 1;
+ return 0;
+} /* }}} int cpu_stage */
+
+static int cpu_read(void) {
+ cdtime_t now = cdtime();
+
+#if PROCESSOR_CPU_LOAD_INFO /* {{{ */
+ kern_return_t status;
+
+ processor_cpu_load_info_data_t cpu_info;
+ mach_msg_type_number_t cpu_info_len;
+
+ host_t cpu_host;
+
+ for (mach_msg_type_number_t cpu = 0; cpu < cpu_list_len; cpu++) {
+ cpu_host = 0;
+ cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
+
+ status = processor_info(cpu_list[cpu], PROCESSOR_CPU_LOAD_INFO, &cpu_host,
+ (processor_info_t)&cpu_info, &cpu_info_len);
+ if (status != KERN_SUCCESS) {
+ ERROR("cpu plugin: processor_info (PROCESSOR_CPU_LOAD_INFO) failed: %s",
+ mach_error_string(status));
+ continue;
+ }
+
+ if (cpu_info_len < CPU_STATE_MAX) {
+ ERROR("cpu plugin: processor_info returned only %i elements..",
+ cpu_info_len);
+ continue;
+ }
+
+ cpu_stage(cpu, COLLECTD_CPU_STATE_USER,
+ (derive_t)cpu_info.cpu_ticks[CPU_STATE_USER], now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_NICE,
+ (derive_t)cpu_info.cpu_ticks[CPU_STATE_NICE], now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_SYSTEM,
+ (derive_t)cpu_info.cpu_ticks[CPU_STATE_SYSTEM], now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_IDLE,
+ (derive_t)cpu_info.cpu_ticks[CPU_STATE_IDLE], now);
+ }
+/* }}} #endif PROCESSOR_CPU_LOAD_INFO */
+
+#elif defined(KERNEL_LINUX) /* {{{ */
+ int cpu;
+ FILE *fh;
+ char buf[1024];
+
+ char *fields[11];
+ int numfields;
+
+ if ((fh = fopen("/proc/stat", "r")) == NULL) {
+ ERROR("cpu plugin: fopen (/proc/stat) failed: %s", STRERRNO);
+ return -1;
+ }
+
+ while (fgets(buf, 1024, fh) != NULL) {
+ if (strncmp(buf, "cpu", 3))
+ continue;
+ if ((buf[3] < '0') || (buf[3] > '9'))
+ continue;
+
+ numfields = strsplit(buf, fields, STATIC_ARRAY_SIZE(fields));
+ if (numfields < 5)
+ continue;
+
+ cpu = atoi(fields[0] + 3);
+
+ /* Do not stage User and Nice immediately: we may need to alter them later:
+ */
+ long long user_value = atoll(fields[1]);
+ long long nice_value = atoll(fields[2]);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_SYSTEM, (derive_t)atoll(fields[3]), now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_IDLE, (derive_t)atoll(fields[4]), now);
+
+ if (numfields >= 8) {
+ cpu_stage(cpu, COLLECTD_CPU_STATE_WAIT, (derive_t)atoll(fields[5]), now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)atoll(fields[6]),
+ now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_SOFTIRQ, (derive_t)atoll(fields[7]),
+ now);
+ }
+
+ if (numfields >= 9) { /* Steal (since Linux 2.6.11) */
+ cpu_stage(cpu, COLLECTD_CPU_STATE_STEAL, (derive_t)atoll(fields[8]), now);
+ }
+
+ if (numfields >= 10) { /* Guest (since Linux 2.6.24) */
+ if (report_guest) {
+ long long value = atoll(fields[9]);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_GUEST, (derive_t)value, now);
+ /* Guest is included in User; optionally subtract Guest from User: */
+ if (subtract_guest) {
+ user_value -= value;
+ if (user_value < 0)
+ user_value = 0;
+ }
+ }
+ }
+
+ if (numfields >= 11) { /* Guest_nice (since Linux 2.6.33) */
+ if (report_guest) {
+ long long value = atoll(fields[10]);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_GUEST_NICE, (derive_t)value, now);
+ /* Guest_nice is included in Nice; optionally subtract Guest_nice from
+ Nice: */
+ if (subtract_guest) {
+ nice_value -= value;
+ if (nice_value < 0)
+ nice_value = 0;
+ }
+ }
+ }
+
+ /* Eventually stage User and Nice: */
+ cpu_stage(cpu, COLLECTD_CPU_STATE_USER, (derive_t)user_value, now);
+ cpu_stage(cpu, COLLECTD_CPU_STATE_NICE, (derive_t)nice_value, now);
+ }
+ fclose(fh);
+/* }}} #endif defined(KERNEL_LINUX) */
+
+#elif defined(HAVE_LIBKSTAT) /* {{{ */
+ static cpu_stat_t cs;
+
+ if (kc == NULL)
+ return -1;
+
+ for (int cpu = 0; cpu < numcpu; cpu++) {
+ if (kstat_read(kc, ksp[cpu], &cs) == -1)
+ continue; /* error message? */
+
+ cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_IDLE,
+ (derive_t)cs.cpu_sysinfo.cpu[CPU_IDLE], now);
+ cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_USER,
+ (derive_t)cs.cpu_sysinfo.cpu[CPU_USER], now);
+ cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_SYSTEM,
+ (derive_t)cs.cpu_sysinfo.cpu[CPU_KERNEL], now);
+ cpu_stage(ksp[cpu]->ks_instance, COLLECTD_CPU_STATE_WAIT,
+ (derive_t)cs.cpu_sysinfo.cpu[CPU_WAIT], now);
+ }
+/* }}} #endif defined(HAVE_LIBKSTAT) */
+
+#elif CAN_USE_SYSCTL /* {{{ */
+ uint64_t cpuinfo[numcpu][CPUSTATES];
+ size_t cpuinfo_size;
+ int status;
+
+ if (numcpu < 1) {
+ ERROR("cpu plugin: Could not determine number of "
+ "installed CPUs using sysctl(3).");
+ return -1;
+ }
+
+ memset(cpuinfo, 0, sizeof(cpuinfo));
+
+#if defined(KERN_CPTIME2)
+ if (numcpu > 1) {
+ for (int i = 0; i < numcpu; i++) {
+ int mib[] = {CTL_KERN, KERN_CPTIME2, i};
+
+ cpuinfo_size = sizeof(cpuinfo[0]);
+
+ status = sysctl(mib, STATIC_ARRAY_SIZE(mib), cpuinfo[i], &cpuinfo_size,
+ NULL, 0);
+ if (status == -1) {
+ ERROR("cpu plugin: sysctl failed: %s.", STRERRNO);
+ return -1;
+ }
+ }
+ } else
+#endif /* defined(KERN_CPTIME2) */
+ {
+ int mib[] = {CTL_KERN, KERN_CPTIME};
+ long cpuinfo_tmp[CPUSTATES];
+
+ cpuinfo_size = sizeof(cpuinfo_tmp);
+
+ status = sysctl(mib, STATIC_ARRAY_SIZE(mib), &cpuinfo_tmp, &cpuinfo_size,
+ NULL, 0);
+ if (status == -1) {
+ ERROR("cpu plugin: sysctl failed: %s.", STRERRNO);
+ return -1;
+ }
+
+ for (int i = 0; i < CPUSTATES; i++) {
+ cpuinfo[0][i] = cpuinfo_tmp[i];
+ }
+ }
+
+ for (int i = 0; i < numcpu; i++) {
+ cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[i][CP_USER], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[i][CP_NICE], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[i][CP_SYS], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[i][CP_IDLE], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[i][CP_INTR],
+ now);
+ }
+/* }}} #endif CAN_USE_SYSCTL */
+
+#elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES) /* {{{ \
+ */
+ long cpuinfo[maxcpu][CPUSTATES];
+ size_t cpuinfo_size;
+
+ memset(cpuinfo, 0, sizeof(cpuinfo));
+
+ cpuinfo_size = sizeof(cpuinfo);
+ if (sysctlbyname("kern.cp_times", &cpuinfo, &cpuinfo_size, NULL, 0) < 0) {
+ ERROR("cpu plugin: sysctlbyname failed: %s.", STRERRNO);
+ return -1;
+ }
+
+ for (int i = 0; i < numcpu; i++) {
+ cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[i][CP_USER], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[i][CP_NICE], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[i][CP_SYS], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[i][CP_IDLE], now);
+ cpu_stage(i, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[i][CP_INTR],
+ now);
+ }
+/* }}} #endif HAVE_SYSCTL_KERN_CP_TIMES */
+
+#elif defined(HAVE_SYSCTLBYNAME) /* {{{ */
+ long cpuinfo[CPUSTATES];
+ size_t cpuinfo_size;
+
+ cpuinfo_size = sizeof(cpuinfo);
+
+ if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0) {
+ ERROR("cpu plugin: sysctlbyname failed: %s.", STRERRNO);
+ return -1;
+ }
+
+ cpu_stage(0, COLLECTD_CPU_STATE_USER, (derive_t)cpuinfo[CP_USER], now);
+ cpu_stage(0, COLLECTD_CPU_STATE_NICE, (derive_t)cpuinfo[CP_NICE], now);
+ cpu_stage(0, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cpuinfo[CP_SYS], now);
+ cpu_stage(0, COLLECTD_CPU_STATE_IDLE, (derive_t)cpuinfo[CP_IDLE], now);
+ cpu_stage(0, COLLECTD_CPU_STATE_INTERRUPT, (derive_t)cpuinfo[CP_INTR], now);
+/* }}} #endif HAVE_SYSCTLBYNAME */
+
+#elif defined(HAVE_LIBSTATGRAB) /* {{{ */
+ sg_cpu_stats *cs;
+ cs = sg_get_cpu_stats();
+
+ if (cs == NULL) {
+ ERROR("cpu plugin: sg_get_cpu_stats failed.");
+ return -1;
+ }
+
+ cpu_state(0, COLLECTD_CPU_STATE_IDLE, (derive_t)cs->idle);
+ cpu_state(0, COLLECTD_CPU_STATE_NICE, (derive_t)cs->nice);
+ cpu_state(0, COLLECTD_CPU_STATE_SWAP, (derive_t)cs->swap);
+ cpu_state(0, COLLECTD_CPU_STATE_SYSTEM, (derive_t)cs->kernel);
+ cpu_state(0, COLLECTD_CPU_STATE_USER, (derive_t)cs->user);
+ cpu_state(0, COLLECTD_CPU_STATE_WAIT, (derive_t)cs->iowait);
+/* }}} #endif HAVE_LIBSTATGRAB */
+
+#elif defined(HAVE_PERFSTAT) /* {{{ */
+ perfstat_id_t id;
+ int cpus;
+
+ numcpu = perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
+ if (numcpu == -1) {
+ WARNING("cpu plugin: perfstat_cpu: %s", STRERRNO);
+ return -1;
+ }
+
+ if (pnumcpu != numcpu || perfcpu == NULL) {
+ free(perfcpu);
+ perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
+ }
+ pnumcpu = numcpu;
+
+ id.name[0] = '\0';
+ if ((cpus = perfstat_cpu(&id, perfcpu, sizeof(perfstat_cpu_t), numcpu)) < 0) {
+ WARNING("cpu plugin: perfstat_cpu: %s", STRERRNO);
+ return -1;
+ }
+
+ for (int i = 0; i < cpus; i++) {
+ cpu_stage(i, COLLECTD_CPU_STATE_IDLE, (derive_t)perfcpu[i].idle, now);
+ cpu_stage(i, COLLECTD_CPU_STATE_SYSTEM, (derive_t)perfcpu[i].sys, now);
+ cpu_stage(i, COLLECTD_CPU_STATE_USER, (derive_t)perfcpu[i].user, now);
+ cpu_stage(i, COLLECTD_CPU_STATE_WAIT, (derive_t)perfcpu[i].wait, now);
+ }
+#endif /* }}} HAVE_PERFSTAT */
+
+ cpu_commit();
+ cpu_reset();
+ return 0;
}
-void module_register (void)
-{
- plugin_register_init ("cpu", init);
- plugin_register_read ("cpu", cpu_read);
+void module_register(void) {
+ plugin_register_init("cpu", init);
+ plugin_register_config("cpu", cpu_config, config_keys, config_keys_num);
+ plugin_register_read("cpu", cpu_read);
} /* void module_register */