mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
120 lines
3.1 KiB
Perl
Executable File
120 lines
3.1 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# Copyright 2012 Chris Wilson
|
|
# Copyright 2006 Holger Levsen
|
|
#
|
|
# This plugin monitors ALL processes on a system. No exceptions. It can
|
|
# produce very big graphs! But if you want to know which processes are
|
|
# killing your system by page faulting, without knowing what to monitor
|
|
# in advance, this can help; or in addition to one of the more specific
|
|
# plugins to monitor just Apache or MySQL, for example.
|
|
#
|
|
# Each counter is a DERIVE (difference since the last counter reading)
|
|
# of the number of major page faults, usually 4k each, read in by a
|
|
# process. Memory mapped files probably contribute to this. The process
|
|
# cannot continue until the page fault is served, so this is a
|
|
# high-priority read that usually indicates memory starvation.
|
|
# Processes with no page faults at all are ignored. Processes
|
|
# that die may not appear on the graph, and anyway their last chunk of
|
|
# CPU usage before they died is lost. You could modify this plugin to
|
|
# read SAR/psacct records if you care about that.
|
|
#
|
|
# 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; version 2 dated June,
|
|
# 1991.
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
my $scriptname = $0;
|
|
$scriptname =~ s|.*/||;
|
|
my $fieldname = ($scriptname =~ /^total_by_process_(.*)_(.*)/) ? $1 : undef;
|
|
my $fieldtype = ($scriptname =~ /^total_by_process_(.*)_(.*)/) ? $2 : undef;
|
|
|
|
if (@ARGV and $ARGV[1] eq "suggest")
|
|
{
|
|
system("ps L | cut -d' ' -f1");
|
|
exit(0);
|
|
}
|
|
|
|
if (!$fieldname)
|
|
{
|
|
print STDERR "Must be used with a PS format specifier name; try '$0 suggest'";
|
|
exit(2);
|
|
}
|
|
|
|
unless ($fieldtype =~ /^(GAUGE|DERIVE)$/)
|
|
{
|
|
print STDERR "Unknown field type $fieldtype: should be GAUGE or DERIVE";
|
|
exit(2);
|
|
}
|
|
|
|
my $cmd = "ps -eo $fieldname,comm h";
|
|
open PS, "$cmd|" or die "Failed to run ps command: $cmd: $!";
|
|
|
|
# my $header_line = <PS>;
|
|
my %total_by_process;
|
|
|
|
while (<PS>)
|
|
{
|
|
my @fields = split;
|
|
my $value = $fields[0];
|
|
my $process = $fields[1];
|
|
|
|
# remove any / and everything after it from the process name,
|
|
# e.g. kworker/0:2 -> kworker
|
|
$process =~ s|/.*||;
|
|
|
|
# remove any . at the end of the name (why does this appear?)
|
|
# $process =~ s|\.$||;
|
|
|
|
# change any symbol that's not allowed in a munin variable name to _
|
|
$process =~ tr|a-zA-Z0-9|_|c;
|
|
|
|
$total_by_process{$process} += $value;
|
|
}
|
|
|
|
foreach my $process (keys %total_by_process)
|
|
{
|
|
# remove all processes with 0 faults
|
|
if (not $total_by_process{$process})
|
|
{
|
|
delete $total_by_process{$process};
|
|
}
|
|
}
|
|
|
|
close(PS);
|
|
|
|
if (@ARGV and $ARGV[1] == "config")
|
|
{
|
|
print <<END;
|
|
graph_title $fieldname by Process
|
|
graph_category processes
|
|
graph_info Shows total of $fieldname (reported by ps) for each process name
|
|
graph_vlabel $fieldname (from ps)
|
|
END
|
|
|
|
# graph_args --base 1000
|
|
# graph_vlabel seconds
|
|
|
|
my $stack = 0;
|
|
sub draw() { return $stack++ ? "STACK" : "AREA" }
|
|
print map
|
|
{
|
|
"$_.label $_\n" .
|
|
"$_.min 0\n" .
|
|
"$_.type $fieldtype\n" .
|
|
"$_.draw " . draw() . "\n"
|
|
} sort keys %total_by_process;
|
|
}
|
|
else
|
|
{
|
|
print map
|
|
{
|
|
"$_.value $total_by_process{$_}\n"
|
|
} sort keys %total_by_process;
|
|
}
|
|
|
|
exit(0);
|