/**
* collectd - src/cpu.c
* Copyright (C) 2005-2010 Florian octo Forster
- * Copyright (C) 2008 Oleg King
- * Copyright (C) 2009 Simon Kuhnle
- * Copyright (C) 2009 Manuel Sanmartin
+ * 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
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* 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
# define CAN_USE_SYSCTL 0
#endif
-#define CPU_SUBMIT_USER 1
-#define CPU_SUBMIT_SYSTEM 2
-#define CPU_SUBMIT_WAIT 3
-#define CPU_SUBMIT_NICE 4
-#define CPU_SUBMIT_SWAP 5
-#define CPU_SUBMIT_INTERRUPT 6
-#define CPU_SUBMIT_SOFTIRQ 7
-#define CPU_SUBMIT_STEAL 8
-#define CPU_SUBMIT_IDLE 9
-#define CPU_SUBMIT_ACTIVE 10
-#define CPU_SUBMIT_MAX 11
-#define CPU_SUBMIT_FLUSH -1
+#define CPU_SUBMIT_USER 0
+#define CPU_SUBMIT_SYSTEM 1
+#define CPU_SUBMIT_WAIT 2
+#define CPU_SUBMIT_NICE 3
+#define CPU_SUBMIT_SWAP 4
+#define CPU_SUBMIT_INTERRUPT 5
+#define CPU_SUBMIT_SOFTIRQ 6
+#define CPU_SUBMIT_STEAL 7
+#define CPU_SUBMIT_IDLE 8
+#define CPU_SUBMIT_ACTIVE 9
+#define CPU_SUBMIT_MAX 10
#if HAVE_STATGRAB_H
# include <statgrab.h>
#endif
static const char *cpu_state_names[] = {
- "none",
"user",
"system",
"wait",
#if PROCESSOR_TEMPERATURE
static int cpu_temp_retry_counter = 0;
-static int cpu_temp_retry_step = 1;
-static int cpu_temp_retry_max = 1;
+static int cpu_temp_retry_step = 1;
+static int cpu_temp_retry_max = 1;
#endif /* PROCESSOR_TEMPERATURE */
/* #endif PROCESSOR_CPU_LOAD_INFO */
static int pnumcpu;
#endif /* HAVE_PERFSTAT */
-static gauge_t percents[CPU_SUBMIT_MAX] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+static value_to_rate_state_t *percents = NULL;
+static gauge_t agg_percents[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+
};
-int cpu_count = 0;
+static int percents_cells = 0;
+static int cpu_count = 0;
+
static _Bool report_by_cpu = 1;
static _Bool report_percent = 0;
static const char *config_keys[] =
{
"ReportByCpu",
- "ReportActive",
+ "ReportActive",
"ValuesPercentage"
};
static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+
static int cpu_config (const char *key, const char *value)
{
if (strcasecmp (key, "ReportByCpu") == 0) {
if (!report_by_cpu)
report_percent = 1;
}
- if (strcasecmp (key, "ValuesPercentage") == 0)
+ if (strcasecmp (key, "ValuesPercentage") == 0) {
report_percent = IS_TRUE (value) ? 1 : 0;
- if (strcasecmp (key, "ReportActive") == 0)
- report_active = IS_TRUE (value) ? 1 : 0;
+ if (!report_percent)
+ report_by_cpu = 1;
+ }
+ if (strcasecmp (key, "ReportActive") == 0)
+ report_active = IS_TRUE (value) ? 1 : 0;
return (-1);
}
+static int cpu_states_grow (void)
+{
+ void *tmp;
+ int size;
+ int i;
+
+ size = cpu_count * CPU_SUBMIT_MAX; /* always alloc for all states */
+
+ if (size <= 0)
+ return 0;
+
+ if (percents_cells >= size)
+ return 0;
+
+ if (percents == NULL) {
+ percents = malloc(size * sizeof(*percents));
+ if (percents == NULL)
+ return -1;
+ for (i = 0; i < size; i++)
+ memset(&percents[i], 0, sizeof(*percents));
+ percents_cells = size;
+ return 0;
+ }
+
+ tmp = realloc(percents, size * sizeof(*percents));
+
+ if (tmp == NULL) {
+ ERROR ("cpu plugin: could not reserve enough space to hold states");
+ percents = NULL;
+ return -1;
+ }
+
+ percents = tmp;
+
+ for (i = percents_cells ; i < size; i++)
+ memset(&percents[i], 0, sizeof(*percents));
+
+ percents_cells = size;
+ return 0;
+} /* cpu_states_grow */
+
+
static int init (void)
{
#if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- memcpy(&values[0], &value, sizeof(value));
+ memcpy(&values[0], &value, sizeof(value));
- vl.values = values;
- vl.values_len = 1;
+ vl.values = values;
+ vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "cpu", sizeof (vl.plugin));
static void submit_percent(int cpu_num, int cpu_state, gauge_t percent)
{
- value_t value;
+ value_t value;
- value.gauge = percent;
- submit_value (cpu_num, cpu_state, "percent", value);
+ value.gauge = percent;
+ submit_value (cpu_num, cpu_state, "percent", value);
}
static void submit_derive(int cpu_num, int cpu_state, derive_t derive)
{
- value_t value;
+ value_t value;
- value.derive = derive;
- submit_value (cpu_num, cpu_state, "cpu", value);
+ value.derive = derive;
+ submit_value (cpu_num, cpu_state, "cpu", value);
}
static void submit_flush (void)
{
- int i = 0;
-
- if (report_by_cpu)
- return;
-
- for (i = 1; i < CPU_SUBMIT_MAX; i++) {
- if (percents[i] == -1)
- continue;
- submit_percent (-1, i, percents[i] / cpu_count);
- }
- cpu_count = 0;
- memset(percents, 0, sizeof(percents));
+ int i = 0;
+
+ if (report_by_cpu) {
+ cpu_count = 0;
+ return;
+ }
+
+ for (i = 0; i < CPU_SUBMIT_MAX; i++) {
+ if (agg_percents[i] == -1)
+ continue;
+
+ submit_percent(-1, i, agg_percents[i] / cpu_count);
+ agg_percents[i] = -1;
+ }
+ cpu_count = 0;
}
static void submit (int cpu_num, derive_t *derives)
{
int i = 0;
- derive_t cpu_active = 0;
- derive_t cpu_total = 0;
- gauge_t percent;
-
+
if (!report_percent && report_by_cpu) {
- for (i = 1; i < CPU_SUBMIT_ACTIVE; i++)
+ derive_t cpu_active = 0;
+ for (i = 0; i < CPU_SUBMIT_ACTIVE; i++)
{
if (derives[i] == -1)
continue;
submit_derive(cpu_num, i, derives[i]);
}
- if (report_active)
- submit_derive(cpu_num, CPU_SUBMIT_ACTIVE, cpu_active);
+ if (report_active)
+ submit_derive(cpu_num, CPU_SUBMIT_ACTIVE, cpu_active);
}
else /* we are reporting percents */
{
- for (i = 1; i < CPU_SUBMIT_ACTIVE; i++) {
+ cdtime_t cdt;
+ gauge_t percent;
+ gauge_t cpu_total = 0;
+ gauge_t cpu_active = 0;
+ gauge_t local_rates[CPU_SUBMIT_MAX];
+
+ cpu_count++;
+ if (cpu_states_grow())
+ return;
+
+ memset(local_rates, 0, sizeof(local_rates));
+
+ cdt = cdtime();
+ for (i = 0; i < CPU_SUBMIT_ACTIVE; i++) {
+ value_t rate;
+ int index;
+
if (derives[i] == -1)
continue;
- cpu_total += derives[i];
+
+ index = (cpu_num * CPU_SUBMIT_MAX) + i;
+ if (value_to_rate(&rate, derives[i], &percents[index],
+ DS_TYPE_DERIVE, cdt) != 0) {
+ local_rates[i] = -1;
+ continue;
+ }
+
+ local_rates[i] = rate.gauge;
+ cpu_total += rate.gauge;
if (i != CPU_SUBMIT_IDLE)
- cpu_active += derives[i];
+ cpu_active += rate.gauge;
}
- if (report_active)
- derives[CPU_SUBMIT_ACTIVE] = cpu_active;
- else
- derives[CPU_SUBMIT_ACTIVE] = -1;
+ if (cpu_total == 0.0)
+ return;
- cpu_count++;
- for (i = 1; i < CPU_SUBMIT_MAX; i++) {
- if (derives[i] == -1) {
- percents[i] = -1;
+ if (report_active)
+ local_rates[CPU_SUBMIT_ACTIVE] = cpu_active;
+
+ for (i = 0; i < CPU_SUBMIT_MAX; i++) {
+ if (local_rates[i] == -1)
continue;
- }
- percent = ((gauge_t)derives[i] / (gauge_t)cpu_total) * 100.0;
+ percent = (local_rates[i] / cpu_total) * 100;
if (report_by_cpu)
- {
submit_percent (cpu_num, i, percent);
- } else if (percents[i] != -1) {
- percents[i] += percent;
+ else {
+ if (agg_percents[i] == -1)
+ agg_percents[i] = percent;
+ else
+ agg_percents[i] += percent;
}
+
}
}
}
kern_return_t status;
#if PROCESSOR_CPU_LOAD_INFO
- derive_t cpu_active;
processor_cpu_load_info_data_t cpu_info;
- mach_msg_type_number_t cpu_info_len;
+ 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;
+ 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
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
memset(derives, -1, sizeof(derives));
cpu_host = 0;
cpu_info_len = PROCESSOR_BASIC_INFO_COUNT;
continue;
}
- derives[CPU_USER] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER];
- derives[CPU_NICE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE];
- derives[CPU_SYSTEM] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM];
- derives[CPU_IDLE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE];
+ derives[CPU_SUBMIT_USER] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_USER];
+ derives[CPU_SUBMIT_NICE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_NICE];
+ derives[CPU_SUBMIT_SYSTEM] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_SYSTEM];
+ derives[CPU_SUBMIT_IDLE] = (derive_t) cpu_info.cpu_ticks[CPU_STATE_IDLE];
submit (cpu, derives);
#endif /* PROCESSOR_CPU_LOAD_INFO */
if (cpu_temp_len != 1)
{
DEBUG ("processor_info (PROCESSOR_TEMPERATURE) returned %i elements..?",
- (int) cpu_temp_len);
+ (int) cpu_temp_len);
continue;
}
cpu_temp_retry_step = 1;
#endif /* PROCESSOR_TEMPERATURE */
}
- submit_flush ();
+ submit_flush ();
/* #endif PROCESSOR_CPU_LOAD_INFO */
#elif defined(KERNEL_LINUX)
while (fgets (buf, 1024, fh) != NULL)
{
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
-
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
+
if (strncmp (buf, "cpu", 3))
continue;
if ((buf[3] < '0') || (buf[3] > '9'))
}
submit(cpu, derives);
}
- submit_flush();
+ submit_flush();
fclose (fh);
/* #endif defined(KERNEL_LINUX) */
for (cpu = 0; cpu < numcpu; cpu++)
{
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
-
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
+
if (kstat_read (kc, ksp[cpu], &cs) == -1)
continue; /* error message? */
derives[CPU_SUBMIT_WAIT] = cs.cpu_sysinfo.cpu[CPU_WAIT];
submit (ksp[cpu]->ks_instance, derives);
}
- submit_flush ();
+ submit_flush ();
/* #endif defined(HAVE_LIBKSTAT) */
#elif CAN_USE_SYSCTL
}
for (i = 0; i < numcpu; i++) {
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
-
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
+
derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
submit(i, derives);
}
- submit_flush();
+ submit_flush();
/* #endif CAN_USE_SYSCTL */
#elif defined(HAVE_SYSCTLBYNAME) && defined(HAVE_SYSCTL_KERN_CP_TIMES)
long cpuinfo[maxcpu][CPUSTATES];
}
for (i = 0; i < numcpu; i++) {
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
derives[CPU_SUBMIT_USER] = cpuinfo[i][CP_USER];
derives[CPU_SUBMIT_NICE] = cpuinfo[i][CP_NICE];
derives[CPU_SUBMIT_SYSTEM] = cpuinfo[i][CP_SYS];
derives[CPU_SUBMIT_IDLE] = cpuinfo[i][CP_IDLE];
derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[i][CP_INTR];
- submit(i, derives);
+ submit(i, derives);
}
- submit_flush();
+ submit_flush();
/* #endif HAVE_SYSCTL_KERN_CP_TIMES */
#elif defined(HAVE_SYSCTLBYNAME)
long cpuinfo[CPUSTATES];
size_t cpuinfo_size;
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
cpuinfo_size = sizeof (cpuinfo);
return (-1);
}
- derives[CPU_SUBMIT_USER] = cpuinfo[CP_USER];
- derives[CPU_SUBMIT_SYSTEM] = cpuinfo[CP_SYS];
- derives[CPU_SUBMIT_NICE] = cpuinfo[CP_NICE];
- derives[CPU_SUBMIT_IDLE] = cpuinfo[CP_IDLE];
- derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[CP_INTR];
+ derives[CPU_SUBMIT_USER] = cpuinfo[CP_USER];
+ derives[CPU_SUBMIT_SYSTEM] = cpuinfo[CP_SYS];
+ derives[CPU_SUBMIT_NICE] = cpuinfo[CP_NICE];
+ derives[CPU_SUBMIT_IDLE] = cpuinfo[CP_IDLE];
+ derives[CPU_SUBMIT_INTERRUPT] = cpuinfo[CP_INTR];
submit(0, derives);
- submit_flush();
+ submit_flush();
/* #endif HAVE_SYSCTLBYNAME */
#elif defined(HAVE_LIBSTATGRAB)
sg_cpu_stats *cs;
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
cs = sg_get_cpu_stats ();
if (cs == NULL)
derives[CPU_SUBMIT_SYSTEM] = (derive_t) cs->kernel;
derives[CPU_SUBMIT_USER] = (derive_t) cs->user;
derives[CPU_SUBMIT_WAIT] = (derive_t) cs->iowait;
- submit(0, derives);
- submit_flush();
+ submit(0, derives);
+ submit_flush();
/* #endif HAVE_LIBSTATGRAB */
#elif defined(HAVE_PERFSTAT)
for (i = 0; i < cpus; i++)
{
- derive_t derives[CPU_SUBMIT_MAX] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
- };
+ derive_t derives[CPU_SUBMIT_MAX] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ };
derives[CPU_SUBMIT_IDLE] = perfcpu[i].idle;
derives[CPU_SUBMIT_SYSTEM] = perfcpu[i].sys;
derives[CPU_SUBMIT_USER] = perfcpu[i].user;
derives[CPU_SUBMIT_WAIT] = perfcpu[i].wait;
- submit(i, derives);
+ submit(i, derives);
}
- submit_flush();
+ submit_flush();
#endif /* HAVE_PERFSTAT */
return (0);
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