/**
* collectd - src/cpu.c
- * Copyright (C) 2005-2009 Florian octo Forster
+ * Copyright (C) 2005-2010 Florian octo Forster
* Copyright (C) 2008 Oleg King
* Copyright (C) 2009 Simon Kuhnle
+ * Copyright (C) 2009 Manuel Sanmartin
*
* 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
* Florian octo Forster <octo at verplant.org>
* Oleg King <king2 at kaluga.ru>
* Simon Kuhnle <simon at blarzwurst.de>
+ * Manuel Sanmartin
**/
#include "collectd.h"
# include <statgrab.h>
#endif
+# ifdef HAVE_PERFSTAT
+# include <sys/protosw.h>
+# include <libperfstat.h>
+# endif /* HAVE_PERFSTAT */
+
#if !PROCESSOR_CPU_LOAD_INFO && !KERNEL_LINUX && !HAVE_LIBKSTAT \
- && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB
+ && !CAN_USE_SYSCTL && !HAVE_SYSCTLBYNAME && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
# error "No applicable input method."
#endif
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)
#elif defined(HAVE_LIBSTATGRAB)
/* no variables needed */
-#endif /* HAVE_LIBSTATGRAB */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif defined(HAVE_PERFSTAT)
+static perfstat_cpu_t *perfcpu;
+static int numcpu;
+static int pnumcpu;
+#endif /* HAVE_PERFSTAT */
static int init (void)
{
-#if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
+#if PROCESSOR_CPU_LOAD_INFO
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)
+ 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 returned %i", (int) status);
+ ERROR ("cpu plugin: host_processors() failed with status %d.", (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)
#elif defined(HAVE_LIBSTATGRAB)
/* nothing to initialize */
-#endif /* HAVE_LIBSTATGRAB */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif defined(HAVE_PERFSTAT)
+ /* nothing to initialize */
+#endif /* HAVE_PERFSTAT */
return (0);
} /* int init */
-static void submit (int cpu_num, const char *type_instance, counter_t value)
+static void submit (int cpu_num, const char *type_instance, derive_t value)
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- values[0].counter = value;
+ values[0].derive = value;
vl.values = values;
vl.values_len = 1;
static int cpu_read (void)
{
-#if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
+#if PROCESSOR_CPU_LOAD_INFO
int cpu;
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
host_t cpu_host;
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);
+ 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 failed: %s",
+ ERROR ("cpu plugin: processor_info (PROCESSOR_CPU_LOAD_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)
+ if (cpu_info_len < CPU_STATE_MAX)
{
- DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
- (int) cpu_temp_len);
+ ERROR ("cpu plugin: processor_info returned only %i elements..", cpu_info_len);
continue;
}
- cpu_temp_retry_counter = 0;
- cpu_temp_retry_step = 1;
-
- DEBUG ("cpu_temp = %i", (int) cpu_temp);
-#endif /* PROCESSOR_TEMPERATURE */
+ 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 */
#elif defined(KERNEL_LINUX)
int cpu;
- counter_t user, nice, syst, idle;
- counter_t wait, intr, sitr; /* sitr == soft interrupt */
+ derive_t user, nice, syst, idle;
+ derive_t wait, intr, sitr; /* sitr == soft interrupt */
FILE *fh;
char buf[1024];
#elif defined(HAVE_LIBKSTAT)
int cpu;
- counter_t user, syst, idle, wait;
+ derive_t user, syst, idle, wait;
static cpu_stat_t cs;
if (kc == NULL)
if (kstat_read (kc, ksp[cpu], &cs) == -1)
continue; /* error message? */
- 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];
+ 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);
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 */
+ 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 */
+
+#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 */
return (0);
}