/**
* collectd - src/memory.c
- * Copyright (C) 2005 Florian octo Forster
+ * Copyright (C) 2005-2007 Florian octo Forster
*
* 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
#include "collectd.h"
#include "common.h"
#include "plugin.h"
+#include "utils_debug.h"
+
+#ifdef HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
-/* TODO #include <mach/vm-stuff*> */
#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_MACH_HOST_H
+# include <mach/mach_host.h>
+#endif
#ifdef HAVE_MACH_HOST_PRIV_H
# include <mach/host_priv.h>
#endif
+#ifdef HAVE_MACH_VM_STATISTICS_H
+# include <mach/vm_statistics.h>
+#endif
-#if defined (HOST_VM_INFO) || defined(KERNEL_LINUX) || defined(HAVE_LIBKSTAT)
+#if defined (HOST_VM_INFO) || HAVE_SYSCTLBYNAME || KERNEL_LINUX || HAVE_LIBKSTAT
# define MEMORY_HAVE_READ 1
#else
# define MEMORY_HAVE_READ 0
#endif
-#define MODULE_NAME "memory"
-
-static char *memory_file = "memory.rrd";
+/* 2^48 = 281474976710656 */
+static data_source_t dsrc[4] =
+{
+ {"used", DS_TYPE_GAUGE, 0, 281474976710656.0},
+ {"free", DS_TYPE_GAUGE, 0, 281474976710656.0},
+ {"buffers", DS_TYPE_GAUGE, 0, 281474976710656.0},
+ {"cached", DS_TYPE_GAUGE, 0, 281474976710656.0}
+};
-/* 9223372036854775807 == LLONG_MAX */
-static char *ds_def[] =
+static data_set_t ds =
{
- "DS:used:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:free:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:buffers:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:cached:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- NULL
+ "memory", 4, dsrc
};
-static int ds_num = 4;
/* vm_statistics_data_t */
#if defined(HOST_VM_INFO)
static vm_size_t pagesize;
/* #endif HOST_VM_INFO */
-#elif defined(KERNEL_LINUX)
+#elif HAVE_SYSCTLBYNAME
+/* no global variables */
+/* #endif HAVE_SYSCTLBYNAME */
+
+#elif KERNEL_LINUX
/* no global variables */
/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBKSTAT)
+#elif HAVE_LIBKSTAT
static int pagesize;
static kstat_t *ksp;
#endif /* HAVE_LIBKSTAT */
-static void memory_init (void)
+#if MEMORY_HAVE_READ
+static int memory_init (void)
{
#if defined(HOST_VM_INFO)
port_host = mach_host_self ();
- host_page_size(port_host, &pagesize);
+ host_page_size (port_host, &pagesize);
/* #endif HOST_VM_INFO */
+#elif HAVE_SYSCTLBYNAME
+/* no init stuff */
+/* #endif HAVE_SYSCTLBYNAME */
+
#elif defined(KERNEL_LINUX)
/* no init stuff */
/* #endif KERNEL_LINUX */
ksp = NULL;
#endif /* HAVE_LIBKSTAT */
- return;
-}
+ return (0);
+} /* int memory_init */
-static void memory_write (char *host, char *inst, char *val)
-{
- rrd_update_file (host, memory_file, val, ds_def, ds_num);
-}
-
-#if MEMORY_HAVE_READ
-#define BUFSIZE 512
static void memory_submit (long long mem_used, long long mem_buffered,
long long mem_cached, long long mem_free)
{
- char buf[BUFSIZE];
+ value_t values[4];
+ value_list_t vl = VALUE_LIST_INIT;
+
+ values[0].gauge = mem_used;
+ values[1].gauge = mem_free;
+ values[2].gauge = mem_buffered;
+ values[3].gauge = mem_cached;
- if (snprintf (buf, BUFSIZE, "%u:%lli:%lli:%lli:%lli",
- (unsigned int) curtime, mem_used, mem_free,
- mem_buffered, mem_cached) >= BUFSIZE)
- return;
+ vl.values = values;
+ vl.values_len = 4;
+ vl.time = time (NULL);
+ strcpy (vl.host, hostname);
+ strcpy (vl.plugin, "memory");
- plugin_submit (MODULE_NAME, "-", buf);
+ plugin_dispatch_values ("memory", &vl);
}
-#undef BUFSIZE
-static void memory_read (void)
+static int memory_read (void)
{
#if defined(HOST_VM_INFO)
kern_return_t status;
long long free;
if (!port_host || !pagesize)
- return;
+ return (-1);
vm_data_len = sizeof (vm_data) / sizeof (natural_t);
if ((status = host_statistics (port_host, HOST_VM_INFO,
&vm_data_len)) != KERN_SUCCESS)
{
syslog (LOG_ERR, "memory-plugin: host_statistics failed and returned the value %i", (int) status);
- return;
+ return (-1);
}
/*
wired = vm_data.wire_count * pagesize;
active = vm_data.active_count * pagesize;
inactive = vm_data.inactive_count * pagesize;
- free = vm_stat.free_count * pagesize;
+ free = vm_data.free_count * pagesize;
memory_submit (wired + active, -1, inactive, free);
/* #endif HOST_VM_INFO */
+#elif HAVE_SYSCTLBYNAME
+ /*
+ * vm.stats.vm.v_page_size: 4096
+ * vm.stats.vm.v_page_count: 246178
+ * vm.stats.vm.v_free_count: 28760
+ * vm.stats.vm.v_wire_count: 37526
+ * vm.stats.vm.v_active_count: 55239
+ * vm.stats.vm.v_inactive_count: 113730
+ * vm.stats.vm.v_cache_count: 10809
+ */
+ char *sysctl_keys[8] =
+ {
+ "vm.stats.vm.v_page_size",
+ "vm.stats.vm.v_page_count",
+ "vm.stats.vm.v_free_count",
+ "vm.stats.vm.v_wire_count",
+ "vm.stats.vm.v_active_count",
+ "vm.stats.vm.v_inactive_count",
+ "vm.stats.vm.v_cache_count",
+ NULL
+ };
+ int sysctl_vals[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
+
+ size_t len;
+ int i;
+ int status;
+
+ for (i = 0; sysctl_keys[i] != NULL; i++)
+ {
+ len = sizeof (int);
+ if ((status = sysctlbyname (sysctl_keys[i],
+ (void *) &sysctl_vals[i], &len,
+ NULL, 0)) < 0)
+ {
+ syslog (LOG_ERR, "memory plugin: sysctlbyname (%s): %s",
+ sysctl_keys[i], strerror (errno));
+ return (-1);
+ }
+ DBG ("%26s: %6i", sysctl_keys[i], sysctl_vals[i]);
+ } /* for i */
+
+ /* multiply all all page counts with the pagesize */
+ for (i = 1; sysctl_keys[i] != NULL; i++)
+ sysctl_vals[i] = sysctl_vals[i] * sysctl_vals[0];
+
+ memory_submit (sysctl_vals[3] + sysctl_vals[4], /* wired + active */
+ sysctl_vals[6], /* cache */
+ sysctl_vals[5], /* inactive */
+ sysctl_vals[2]); /* free */
+/* #endif HAVE_SYSCTLBYNAME */
+
#elif defined(KERNEL_LINUX)
FILE *fh;
char buffer[1024];
if ((fh = fopen ("/proc/meminfo", "r")) == NULL)
{
syslog (LOG_WARNING, "memory: fopen: %s", strerror (errno));
- return;
+ return (-1);
}
while (fgets (buffer, 1024, fh) != NULL)
long long mem_lock;
if (ksp == NULL)
- return;
+ return (-1);
mem_used = get_kstat_value (ksp, "pagestotal");
mem_free = get_kstat_value (ksp, "pagesfree");
mem_lock = get_kstat_value (ksp, "pageslocked");
if ((mem_used < 0LL) || (mem_free < 0LL) || (mem_lock < 0LL))
- return;
+ return (-1);
if (mem_used < (mem_free + mem_lock))
- return;
+ return (-1);
mem_used -= mem_free + mem_lock;
mem_used *= pagesize; /* If this overflows you have some serious */
if ((ios = sg_get_mem_stats ()) != NULL)
memory_submit (ios->used, 0LL, ios->cache, ios->free);
#endif /* HAVE_LIBSTATGRAB */
+
+ return (0);
}
-#else
-# define memory_read NULL
#endif /* MEMORY_HAVE_READ */
void module_register (void)
{
- plugin_register (MODULE_NAME, memory_init, memory_read, memory_write);
-}
+ plugin_register_data_set (&ds);
-#undef MODULE_NAME
+#if MEMORY_HAVE_READ
+ plugin_register_init ("memory", memory_init);
+ plugin_register_read ("memory", memory_read);
+#endif /* MEMORY_HAVE_READ */
+}
projects / collectd.git / blobdiff