rrd based system stats
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/***************************************************************************
* Copyright (C) 06/2006 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* 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. *
* *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "plugins.h"
#include "probe.h"
struct sammler_plugin plugin;
static const char *ds_def = {
"DS:pgalloc_high:DERIVE:15:0:U "
"DS:pgalloc_normal:DERIVE:15:0:U "
"DS:pgalloc_dma:DERIVE:15:0:U "
"DS:pgfree:DERIVE:15:0:U "
"DS:pgfault:DERIVE:15:0:U "
};
static const char * get_ds(int ds_id)
{
return ds_def;
}
struct vmstat_ {
unsigned long long pgalloc_high;
unsigned long long pgalloc_normal;
unsigned long long pgalloc_dma;
unsigned long long pgfree;
unsigned long long pgfault;
};
static int probe(void)
{
FILE *fp;
struct vmstat_ vmstat;
memset(&vmstat, 0, sizeof(vmstat));
fp = fopen("/proc/vmstat", "r");
if (fp == NULL) {
log_print(LOG_WARN, "plugin vmstat");
return -1;
}
while (fgets(plugin.buffer, plugin.bufsize, fp) != NULL) {
if (!strncmp(plugin.buffer, "pgalloc_high", 12))
vmstat.pgalloc_high = atoll(plugin.buffer + 13);
else if (!strncmp(plugin.buffer, "pgalloc_normal", 14))
vmstat.pgalloc_normal = atoll(plugin.buffer + 15);
else if (!strncmp(plugin.buffer, "pgalloc_dma", 11))
vmstat.pgalloc_dma = atoll(plugin.buffer + 12);
else if (!strncmp(plugin.buffer, "pgfree", 6))
vmstat.pgfree = atoll(plugin.buffer + 7);
else if (!strncmp(plugin.buffer, "pgfault", 7))
vmstat.pgfault = atoll(plugin.buffer + 8);
}
probe_submit(&plugin, "vmstat.rrd", 0, "%llu:%llu:%llu:%llu:%llu",
vmstat.pgalloc_high, vmstat.pgalloc_normal,
vmstat.pgalloc_dma, vmstat.pgfree, vmstat.pgfault);
fclose(fp);
return 0;
}
struct sammler_plugin plugin = {
.name = "vmstat",
.interval = 10,
.bufsize = 1024,
.probe = &probe,
.get_ds = &get_ds,
};