/**
* collectd - src/cpu.c
- * Copyright (C) 2005 Florian octo Forster
+ * Copyright (C) 2005-2009 Florian octo Forster
+ * Copyright (C) 2008 Oleg King
+ * Copyright (C) 2009 Simon Kuhnle
*
* 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
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
+ * Free Software Foundation; only version 2 of the License is applicable.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
*
* Authors:
* Florian octo Forster <octo at verplant.org>
+ * Oleg King <king2 at kaluga.ru>
+ * Simon Kuhnle <simon at blarzwurst.de>
**/
#include "collectd.h"
#include "common.h"
#include "plugin.h"
-#define MODULE_NAME "cpu"
+#ifdef HAVE_MACH_KERN_RETURN_H
+# include <mach/kern_return.h>
+#endif
+#ifdef HAVE_MACH_MACH_INIT_H
+# include <mach/mach_init.h>
+#endif
+#ifdef HAVE_MACH_HOST_PRIV_H
+# include <mach/host_priv.h>
+#endif
+#if HAVE_MACH_MACH_ERROR_H
+# include <mach/mach_error.h>
+#endif
+#ifdef HAVE_MACH_PROCESSOR_INFO_H
+# include <mach/processor_info.h>
+#endif
+#ifdef HAVE_MACH_PROCESSOR_H
+# include <mach/processor.h>
+#endif
+#ifdef HAVE_MACH_VM_MAP_H
+# include <mach/vm_map.h>
+#endif
#ifdef HAVE_LIBKSTAT
# include <sys/sysinfo.h>
#endif /* HAVE_LIBKSTAT */
-#ifdef HAVE_SYSCTLBYNAME
+#if (defined(HAVE_SYSCTL) && HAVE_SYSCTL) \
+ || (defined(HAVE_SYSCTLBYNAME) && HAVE_SYSCTLBYNAME)
# ifdef HAVE_SYS_SYSCTL_H
# include <sys/sysctl.h>
# endif
# define CP_IDLE 4
# define CPUSTATES 5
# endif
-#endif /* HAVE_SYSCTLBYNAME */
-
-#if defined(KERNEL_LINUX) || defined(HAVE_LIBKSTAT) || defined(HAVE_SYSCTLBYNAME)
-# define CPU_HAVE_READ 1
+#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
#else
-# define CPU_HAVE_READ 0
+# define CAN_USE_SYSCTL 0
#endif
-#ifdef HAVE_LIBKSTAT
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
+#if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT \
+ && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB
+# error "No applicable input method."
+#endif
+
+#ifdef PROCESSOR_CPU_LOAD_INFO
+static mach_port_t port_host;
+static processor_port_array_t cpu_list;
+static mach_msg_type_number_t cpu_list_len;
+
+#if PROCESSOR_TEMPERATURE
+static int cpu_temp_retry_counter = 0;
+static int cpu_temp_retry_step = 1;
+static int cpu_temp_retry_max = 1;
+#endif /* PROCESSOR_TEMPERATURE */
+/* #endif PROCESSOR_CPU_LOAD_INFO */
+
+#elif defined(KERNEL_LINUX)
+/* no variables needed */
+/* #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
extern kstat_ctl_t *kc;
static kstat_t *ksp[MAX_NUMCPU];
static int numcpu;
-#endif /* HAVE_LIBKSTAT */
+/* #endif HAVE_LIBKSTAT */
+
+#elif CAN_USE_SYSCTL
+static int numcpu;
+/* #endif CAN_USE_SYSCTL */
-#ifdef HAVE_SYSCTLBYNAME
+#elif defined(HAVE_SYSCTLBYNAME)
static int numcpu;
-#endif /* HAVE_SYSCTLBYNAME */
+/* #endif HAVE_SYSCTLBYNAME */
-static char *cpu_filename = "cpu-%s.rrd";
+#elif defined(HAVE_LIBSTATGRAB)
+/* no variables needed */
+#endif /* HAVE_LIBSTATGRAB */
-static char *ds_def[] =
-{
- "DS:user:COUNTER:25:0:100",
- "DS:nice:COUNTER:25:0:100",
- "DS:syst:COUNTER:25:0:100",
- "DS:idle:COUNTER:25:0:100",
- "DS:wait:COUNTER:25:0:100",
- NULL
-};
-static int ds_num = 5;
-
-static void cpu_init (void)
+static int init (void)
{
-#ifdef HAVE_LIBKSTAT
+#if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
+ kern_return_t status;
+
+ port_host = mach_host_self ();
+
+ /* FIXME: Free `cpu_list' if it's not NULL */
+ if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS)
+ {
+ ERROR ("cpu plugin: host_processors returned %i", (int) status);
+ cpu_list_len = 0;
+ return (-1);
+ }
+
+ DEBUG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors");
+ INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
+
+ cpu_temp_retry_max = 86400 / interval_g;
+/* #endif PROCESSOR_CPU_LOAD_INFO */
+
+#elif defined(HAVE_LIBKSTAT)
kstat_t *ksp_chain;
numcpu = 0;
if (kc == NULL)
- return;
+ return (-1);
/* Solaris doesn't count linear.. *sigh* */
for (numcpu = 0, ksp_chain = kc->kc_chain;
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);
+ }
+/* #endif CAN_USE_SYSCTL */
+
#elif defined (HAVE_SYSCTLBYNAME)
size_t numcpu_size;
if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0)
{
- syslog (LOG_WARNING, "cpu: sysctlbyname: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ WARNING ("cpu plugin: sysctlbyname: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
if (numcpu != 1)
- syslog (LOG_NOTICE, "cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
-#endif
+ NOTICE ("cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu);
+/* #endif HAVE_SYSCTLBYNAME */
- return;
-}
+#elif defined(HAVE_LIBSTATGRAB)
+ /* nothing to initialize */
+#endif /* HAVE_LIBSTATGRAB */
-static void cpu_write (char *host, char *inst, char *val)
+ return (0);
+} /* int init */
+
+static void submit (int cpu_num, const char *type_instance, counter_t value)
{
- char file[512];
- int status;
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
- status = snprintf (file, 512, cpu_filename, inst);
- if (status < 1)
- return;
- else if (status >= 512)
- return;
+ values[0].counter = value;
- rrd_update_file (host, file, val, ds_def, ds_num);
+ 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.type_instance),
+ "%i", cpu_num);
+ sstrncpy (vl.type, "cpu", sizeof (vl.type));
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+
+ plugin_dispatch_values (&vl);
}
-#if CPU_HAVE_READ
-#define BUFSIZE 512
-static void cpu_submit (int cpu_num, unsigned long long user,
- unsigned long long nice, unsigned long long syst,
- unsigned long long idle, unsigned long long wait)
+static int cpu_read (void)
{
- char buf[BUFSIZE];
- char cpu[16];
+#if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
+ int cpu;
- if (snprintf (buf, BUFSIZE, "%u:%llu:%llu:%llu:%llu:%llu", (unsigned int) curtime,
- user, nice, syst, idle, wait) >= BUFSIZE)
- return;
- snprintf (cpu, 16, "%i", cpu_num);
+ kern_return_t status;
+
+#if PROCESSOR_CPU_LOAD_INFO
+ processor_cpu_load_info_data_t cpu_info;
+ mach_msg_type_number_t cpu_info_len;
+#endif
+#if PROCESSOR_TEMPERATURE
+ processor_info_data_t cpu_temp;
+ mach_msg_type_number_t cpu_temp_len;
+#endif
- plugin_submit (MODULE_NAME, cpu, buf);
-}
-#undef BUFSIZE
+ host_t cpu_host;
-static void cpu_read (void)
-{
-#ifdef KERNEL_LINUX
-#define BUFSIZE 1024
+ for (cpu = 0; cpu < cpu_list_len; cpu++)
+ {
+#if PROCESSOR_CPU_LOAD_INFO
+ cpu_host = 0;
+ cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
+
+ if ((status = processor_info (cpu_list[cpu],
+ PROCESSOR_CPU_LOAD_INFO, &cpu_host,
+ (processor_info_t) &cpu_info, &cpu_info_len)) != KERN_SUCCESS)
+ {
+ ERROR ("cpu plugin: processor_info failed with status %i", (int) 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", (counter_t) cpu_info.cpu_ticks[CPU_STATE_USER]);
+ submit (cpu, "nice", (counter_t) cpu_info.cpu_ticks[CPU_STATE_NICE]);
+ submit (cpu, "system", (counter_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM]);
+ submit (cpu, "idle", (counter_t) cpu_info.cpu_ticks[CPU_STATE_IDLE]);
+#endif /* PROCESSOR_CPU_LOAD_INFO */
+#if PROCESSOR_TEMPERATURE
+ /*
+ * Not all Apple computers do have this ability. To minimize
+ * the messages sent to the syslog we do an exponential
+ * stepback if `processor_info' fails. We still try ~once a day
+ * though..
+ */
+ if (cpu_temp_retry_counter > 0)
+ {
+ cpu_temp_retry_counter--;
+ continue;
+ }
+
+ cpu_temp_len = PROCESSOR_INFO_MAX;
+
+ status = processor_info (cpu_list[cpu],
+ PROCESSOR_TEMPERATURE,
+ &cpu_host,
+ cpu_temp, &cpu_temp_len);
+ if (status != KERN_SUCCESS)
+ {
+ ERROR ("cpu plugin: processor_info failed: %s",
+ mach_error_string (status));
+
+ cpu_temp_retry_counter = cpu_temp_retry_step;
+ cpu_temp_retry_step *= 2;
+ if (cpu_temp_retry_step > cpu_temp_retry_max)
+ cpu_temp_retry_step = cpu_temp_retry_max;
+
+ continue;
+ }
+
+ if (cpu_temp_len != 1)
+ {
+ DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
+ (int) cpu_temp_len);
+ continue;
+ }
+
+ cpu_temp_retry_counter = 0;
+ cpu_temp_retry_step = 1;
+
+ DEBUG ("cpu_temp = %i", (int) cpu_temp);
+#endif /* PROCESSOR_TEMPERATURE */
+ }
+/* #endif PROCESSOR_CPU_LOAD_INFO */
+
+#elif defined(KERNEL_LINUX)
int cpu;
- unsigned long long user, nice, syst, idle;
- unsigned long long wait, intr, sitr; /* sitr == soft interrupt */
+ counter_t user, nice, syst, idle;
+ counter_t wait, intr, sitr; /* sitr == soft interrupt */
FILE *fh;
- char buf[BUFSIZE];
+ char buf[1024];
char *fields[9];
int numfields;
if ((fh = fopen ("/proc/stat", "r")) == NULL)
{
- syslog (LOG_WARNING, "cpu: fopen: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ ERROR ("cpu plugin: fopen (/proc/stat) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
- while (fgets (buf, BUFSIZE, fh) != NULL)
+ while (fgets (buf, 1024, fh) != NULL)
{
if (strncmp (buf, "cpu", 3))
continue;
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]);
- /* I doubt anyone cares about the time spent in
- * interrupt handlers.. */
- syst += intr + sitr;
- }
- else
- {
- wait = 0LL;
- }
+ submit (cpu, "wait", wait);
+ submit (cpu, "interrupt", intr);
+ submit (cpu, "softirq", sitr);
- cpu_submit (cpu, user, nice, syst, idle, wait);
+ if (numfields >= 9)
+ submit (cpu, "steal", atoll (fields[8]));
+ }
}
fclose (fh);
-#undef BUFSIZE
/* #endif defined(KERNEL_LINUX) */
#elif defined(HAVE_LIBKSTAT)
int cpu;
- unsigned long long user, syst, idle, wait;
+ counter_t user, syst, idle, wait;
static cpu_stat_t cs;
if (kc == NULL)
- return;
+ return (-1);
for (cpu = 0; cpu < numcpu; cpu++)
{
if (kstat_read (kc, ksp[cpu], &cs) == -1)
continue; /* error message? */
- idle = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_IDLE];
- user = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_USER];
- syst = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_KERNEL];
- wait = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_WAIT];
+ idle = (counter_t) cs.cpu_sysinfo.cpu[CPU_IDLE];
+ user = (counter_t) cs.cpu_sysinfo.cpu[CPU_USER];
+ syst = (counter_t) cs.cpu_sysinfo.cpu[CPU_KERNEL];
+ wait = (counter_t) cs.cpu_sysinfo.cpu[CPU_WAIT];
- cpu_submit (ksp[cpu]->ks_instance,
- user, 0LL, syst, idle, 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) */
+#elif CAN_USE_SYSCTL
+ uint64_t cpuinfo[numcpu][CPUSTATES];
+ size_t cpuinfo_size;
+ int status;
+ int i;
+
+ 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 (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)
long cpuinfo[CPUSTATES];
size_t cpuinfo_size;
if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0)
{
- syslog (LOG_WARNING, "cpu: sysctlbyname: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ ERROR ("cpu plugin: sysctlbyname failed: %s.",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
- cpuinfo[CP_SYS] += cpuinfo[CP_INTR];
+ 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 */
- /* FIXME: Instance is always `0' */
- cpu_submit (0, cpuinfo[CP_USER], cpuinfo[CP_NICE], cpuinfo[CP_SYS], cpuinfo[CP_IDLE], 0LL);
-#endif
+#elif defined(HAVE_LIBSTATGRAB)
+ sg_cpu_stats *cs;
+ cs = sg_get_cpu_stats ();
- return;
+ if (cs == NULL)
+ {
+ ERROR ("cpu plugin: sg_get_cpu_stats failed.");
+ return (-1);
+ }
+
+ submit (0, "idle", (counter_t) cs->idle);
+ submit (0, "nice", (counter_t) cs->nice);
+ submit (0, "swap", (counter_t) cs->swap);
+ submit (0, "system", (counter_t) cs->kernel);
+ submit (0, "user", (counter_t) cs->user);
+ submit (0, "wait", (counter_t) cs->iowait);
+#endif /* HAVE_LIBSTATGRAB */
+
+ return (0);
}
-#else
-# define cpu_read NULL
-#endif /* CPU_HAVE_READ */
void module_register (void)
{
- plugin_register (MODULE_NAME, cpu_init, cpu_read, cpu_write);
-}
-
-#undef MODULE_NAME
+ plugin_register_init ("cpu", init);
+ plugin_register_read ("cpu", cpu_read);
+} /* void module_register */
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