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cpu_linux_multi: license

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license, and a few more comments
This commit is contained in:
Adrien "ze" Urban 2012-09-13 21:24:05 +02:00
parent 44e6672036
commit 5a92255cf2
1 changed files with 56 additions and 23 deletions
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79
plugins/system/cpu_linux_multi
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@ -1,5 +1,32 @@
#! /usr/bin/perl
########################################################################
# Copyright (c) 2012, Adrien Urban
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
########################################################################
# #
# WARNING WARNING WARNING WARNING WARNING WARNING #
# #
@ -7,12 +34,11 @@
# #
########################################################################
#
#
# multigraph, supersampling, extended cpu informations
#
# require: mpstat (to actually collect the data)
# require linux /proc
# (sorry, quick and dirty retrieve the number of cpu from /proc/cpuinfo)
# (sorry, quick/dirty retrieve the number of cpu from /proc/cpuinfo)
#
#
# ENV (default):
@ -24,8 +50,8 @@
# MUNIN_MPSTAT - binary to use as mpstat
#
# increase cache flush rate if you have i/o performance issues
# warning: increasing flushrate too much might cause partial write, and loss
# of data. 0 to disable flush
# warning: increasing flushrate too much might cause partial write, and
# loss of data. 0 to disable flush
#
#
# Parent graph: cpu usage per core/thread
@ -50,6 +76,7 @@
# The master currently (2.0.6) generate rrd file for aggregate values, and
# complains that no data is provided for them (but the graph still works
# fine)
#
#%# family=auto
#%# capabilities=autoconf
@ -60,17 +87,18 @@ use warnings;
my $plugin = $0;
$plugin =~ s/.*\///;
# quick failsafe
if (!defined $ENV{MUNIN_PLUGSTATE}) {
die "This plugin should be run via munin. Try munin-run $plugin\n");
}
########################################################################
# If you want to change something, it's probably doable here
#
# order to display
my $fields_order = [
'sys',
'usr',
'nice',
'idle',
'iowait',
'irq',
'soft',
'steal',
'guest',
'sys', 'usr', 'nice', 'idle', 'iowait', 'irq', 'soft', 'steal', 'guest',
];
# order is the order given by mpstat
my $fields_info = [
@ -113,6 +141,21 @@ my $fields_info = [
}
];
sub pidfile() { "$ENV{MUNIN_PLUGSTATE}/munin.$plugin.pid" }
sub cachefile() { "$ENV{MUNIN_PLUGSTATE}/munin.$plugin.cache" }
sub graph_section() { "system:cpu" };
sub graph_name() { "cpu_extended_multi_1s" };
sub graph_title() { "CPU usage" };
sub graph_title_all() { "Overall CPU usage" };
sub graph_title_n($) { "CPU#" . shift . " usage" };
sub acquire_name() { "<$plugin> collecting information" }
########################################################################
# if you need to change something after that line, It should probably be
# changed to be configurable above it.
#
# mpstat sampling interval
my $update_rate = 1;
if (defined $ENV{MUNIN_UPDATERATE}) {
@ -141,16 +184,6 @@ if (defined $ENV{MUNIN_MPSTAT}) {
}
}
sub pidfile() { "$ENV{MUNIN_PLUGSTATE}/munin.$plugin.pid" }
sub cachefile() { "$ENV{MUNIN_PLUGSTATE}/munin.$plugin.cache" }
sub graph_section() { "system:cpu" };
sub graph_name() { "cpu_extended_multi_1s" };
sub graph_title() { "CPU usage" };
sub graph_title_all() { "Overall CPU usage" };
sub graph_title_n($) { "CPU#" . shift . " usage" };
sub acquire_name() { "<$plugin> collecting information" }
my $cpu_count_cache = undef;
sub cpu_count() {
# XXX: is there any way to do that cleanly ?