/**
* collectd - src/load.c
- * Copyright (C) 2005,2006 Florian octo Forster
+ * Copyright (C) 2005-2008 Florian octo Forster
+ * Copyright (C) 2009 Manuel Sanmartin
+ * Copyright (C) 2013 Vedran Bartonicek
*
* 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
* 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>
+ * Manuel Sanmartin
+ * Vedran Bartonicek <vbartoni at gmail.com>
**/
+#define _DEFAULT_SOURCE
+#define _BSD_SOURCE
+
#include "collectd.h"
#include "common.h"
#include "plugin.h"
-#define MODULE_NAME "load"
-
-#if defined(HAVE_GETLOADAVG) || defined(KERNEL_LINUX) || defined(HAVE_LIBSTATGRAB)
-# define LOAD_HAVE_READ 1
-#else
-# define LOAD_HAVE_READ 0
-#endif
+#include <unistd.h>
#ifdef HAVE_SYS_LOADAVG_H
#include <sys/loadavg.h>
#endif
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
#ifdef HAVE_GETLOADAVG
#if !defined(LOADAVG_1MIN) || !defined(LOADAVG_5MIN) || !defined(LOADAVG_15MIN)
#define LOADAVG_1MIN 0
#endif
#endif /* defined(HAVE_GETLOADAVG) */
-static char *load_file = "load.rrd";
+#ifdef HAVE_PERFSTAT
+# include <sys/proc.h> /* AIX 5 */
+# include <sys/protosw.h>
+# include <libperfstat.h>
+#endif /* HAVE_PERFSTAT */
+
+static _Bool report_relative_load = 0;
-static char *ds_def[] =
+static const char *config_keys[] =
{
- "DS:shortterm:GAUGE:"COLLECTD_HEARTBEAT":0:100",
- "DS:midterm:GAUGE:"COLLECTD_HEARTBEAT":0:100",
- "DS:longterm:GAUGE:"COLLECTD_HEARTBEAT":0:100",
- NULL
+ "ReportRelative"
};
-static int ds_num = 3;
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
-static void load_init (void)
+static int load_config (const char *key, const char *value)
{
- return;
-}
+ if (strcasecmp (key, "ReportRelative") == 0)
+#ifdef _SC_NPROCESSORS_ONLN
+ report_relative_load = IS_TRUE (value) ? 1 : 0;
+#else
+ WARNING ("load plugin: The \"ReportRelative\" configuration "
+ "is not available, because I can't determine the "
+ "number of CPUS on this system. Sorry.");
+#endif
+ return (-1);
-static void load_write (char *host, char *inst, char *val)
-{
- rrd_update_file (host, load_file, val, ds_def, ds_num);
}
-
-#if LOAD_HAVE_READ
-#define BUFSIZE 256
-static void load_submit (double snum, double mnum, double lnum)
+static void load_submit (gauge_t snum, gauge_t mnum, gauge_t lnum)
{
- char buf[BUFSIZE];
+ value_t values[3];
+ value_list_t vl = VALUE_LIST_INIT;
+ int cores = 0;
+ char errbuf[1024];
+
+#ifdef _SC_NPROCESSORS_ONLN
+ if (report_relative_load) {
+ if ((cores = sysconf(_SC_NPROCESSORS_ONLN)) < 1) {
+ WARNING ("load: sysconf failed : %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
+ }
+#endif
+ if (cores > 0) {
+ snum /= cores;
+ mnum /= cores;
+ lnum /= cores;
+ }
- if (snprintf (buf, BUFSIZE, "%u:%.2f:%.2f:%.2f", (unsigned int) curtime,
- snum, mnum, lnum) >= BUFSIZE)
- return;
+ values[0].gauge = snum;
+ values[1].gauge = mnum;
+ values[2].gauge = lnum;
+
+ vl.values = values;
+ vl.values_len = STATIC_ARRAY_SIZE (values);
+
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "load", sizeof (vl.plugin));
+ sstrncpy (vl.type, "load", sizeof (vl.type));
+
+ if (cores > 0) {
+ sstrncpy(vl.type_instance, "relative",
+ sizeof (vl.type_instance));
+ }
- plugin_submit (MODULE_NAME, "-", buf);
+ plugin_dispatch_values (&vl);
}
-#undef BUFSIZE
-static void load_read (void)
+static int load_read (void)
{
#if defined(HAVE_GETLOADAVG)
double load[3];
if (getloadavg (load, 3) == 3)
- load_submit (load[LOADAVG_1MIN], load[LOADAVG_5MIN], load[LOADAVG_15MIN]);
- else
- syslog (LOG_WARNING, "load: getloadavg failed: %s", strerror (errno));
+ load_submit (load[LOADAVG_1MIN], load[LOADAVG_5MIN], load[LOADAVG_15MIN]);
+ else
+ {
+ char errbuf[1024];
+ WARNING ("load: getloadavg failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
/* #endif HAVE_GETLOADAVG */
#elif defined(KERNEL_LINUX)
- double snum, mnum, lnum;
+ gauge_t snum, mnum, lnum;
FILE *loadavg;
char buffer[16];
char *fields[8];
int numfields;
-
+
if ((loadavg = fopen ("/proc/loadavg", "r")) == NULL)
{
- syslog (LOG_WARNING, "load: fopen: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ WARNING ("load: fopen: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
if (fgets (buffer, 16, loadavg) == NULL)
{
- syslog (LOG_WARNING, "load: fgets: %s", strerror (errno));
+ char errbuf[1024];
+ WARNING ("load: fgets: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
fclose (loadavg);
- return;
+ return (-1);
}
if (fclose (loadavg))
- syslog (LOG_WARNING, "load: fclose: %s", strerror (errno));
+ {
+ char errbuf[1024];
+ WARNING ("load: fclose: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
numfields = strsplit (buffer, fields, 8);
if (numfields < 3)
- return;
+ return (-1);
snum = atof (fields[0]);
mnum = atof (fields[1]);
lnum = atof (fields[2]);
- load_submit (snum, mnum, lnum);
+ load_submit(snum, mnum, lnum);
/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBSTATGRAB)
- double snum, mnum, lnum;
+#elif HAVE_LIBSTATGRAB
+ gauge_t snum, mnum, lnum;
sg_load_stats *ls;
if ((ls = sg_get_load_stats ()) == NULL)
snum = ls->min1;
mnum = ls->min5;
lnum = ls->min15;
+ load_submit(snum, mnum, lnum);
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif HAVE_PERFSTAT
+ gauge_t snum, mnum, lnum;
+ perfstat_cpu_total_t cputotal;
+
+ if (perfstat_cpu_total(NULL, &cputotal, sizeof(perfstat_cpu_total_t), 1) < 0)
+ {
+ char errbuf[1024];
+ WARNING ("load: perfstat_cpu : %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ snum = (float)cputotal.loadavg[0]/(float)(1<<SBITS);
+ mnum = (float)cputotal.loadavg[1]/(float)(1<<SBITS);
+ lnum = (float)cputotal.loadavg[2]/(float)(1<<SBITS);
+ load_submit(snum, mnum, lnum);
+/* #endif HAVE_PERFSTAT */
- load_submit (snum, mnum, lnum);
-#endif /* HAVE_LIBSTATGRAB */
-}
#else
-# define load_read NULL
-#endif /* LOAD_HAVE_READ */
+# error "No applicable input method."
+#endif
-void module_register (void)
-{
- plugin_register (MODULE_NAME, load_init, load_read, load_write);
+ return (0);
}
-#undef MODULE_NAME
+void module_register (void)
+{
+ plugin_register_config ("load", load_config, config_keys, config_keys_num);
+ plugin_register_read ("load", load_read);
+} /* void module_register */