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#!/usr/bin/perl -w |
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|
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# |
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# i-scream central monitoring system |
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# http://www.i-scream.org.uk |
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# Copyright (C) 2000-2002 i-scream |
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# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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|
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#----------------------------------------------------------------- |
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# i-scream host plugin - top parsing (cpu, proc, mem, & swap) |
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# $Author: tdb $ |
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# $Id: i-scream_top.pl,v 1.6 2002/05/21 16:47:12 tdb Exp $ |
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# |
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# A short perl script to get the cpu loads, process details, |
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# memory usage and swap usage by parsing top. |
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# |
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# nb. this is a rather 'heavy' process to run :( |
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#----------------------------------------------------------------- |
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|
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|
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$| = 1; |
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|
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|
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# You'd be silly not to use this ;) |
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use strict; |
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|
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# Get the OS type from the args, or try towork it out |
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my($ostype) = $ARGV[0]; |
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$ostype = `uname -s` if not defined $ostype; |
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chomp($ostype); |
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|
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# Decide which paths we should use. |
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my($topbin); |
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my($sysctlbin); |
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if ($ostype eq "SunOS") { |
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# covers: Solaris 7/8 |
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$topbin = "/usr/local/sbin/top -d2 -s1 0"; |
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} |
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elsif ($ostype eq "Linux") { |
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# covers: Debian r2.2 |
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$topbin = "/usr/bin/top -d1 -n2 -b"; |
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} |
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elsif ($ostype eq "FreeBSD") { |
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# covers: FreeBSD 4.X |
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$topbin = "/usr/bin/top -d2 -s1 0"; |
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$sysctlbin = "/sbin/sysctl"; |
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} |
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else { |
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print "i-scream_top.pl Error: Unable to identify system type - \"$ostype\".\n"; |
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print "\"uname -s\" does not report one of the following known types;\n"; |
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print " SunOS, Linux, FreeBSD\n"; |
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exit(1); |
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} |
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|
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# Run the following components: - |
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&include_top(); |
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|
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# End the program normally. |
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exit(0); |
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|
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|
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|
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|
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# sub to print pairs of data, separated by a single space character. |
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# If the second argument is undefined, then the pair is still printed, |
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# however, the value shall be displayed as the the 'default' value |
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# if the passed value was undefined. |
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sub print_pair($$$) { |
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my($default, $name, $value) = @_; |
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|
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if (!defined $value) { |
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$value = $default; |
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} |
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|
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# Remove the trailing linefeed if we've not already done so. |
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chomp($value); |
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|
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# print the pair of data with a space inbetween. |
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print "$name $value\n"; |
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} |
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|
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|
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# sub to run a series of regexps on the output of 'top' to |
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# gather various machine statistics. |
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sub include_top() { |
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|
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# Find out some numbers from top. |
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my(@top) = `$topbin`; |
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my($top) = join(" ", @top); |
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$top =~ s/\n/ /g; |
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|
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if($ostype eq "SunOS") { |
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&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
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&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
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&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
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&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
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&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*on cpu/); |
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&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
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&print_pair(0, "packet.cpu.user", $top =~ /([^\s]+?)% user/); |
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&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/); |
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&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/); |
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&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
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|
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# The following need to be specified in megabytes. |
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# If they are preceeded by a G, then multiply by 1024. |
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|
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$top =~ /([0-9]+?)([KMG]) real/; |
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my($real) = $1; |
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$real*=1024 if $2 eq "G"; |
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$real/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.memory.total", $real); |
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|
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$top =~ /([0-9]+?)([KMG]) free/; |
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my($free) = $1; |
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$free*=1024 if $2 eq "G"; |
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$free/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.memory.free", $free); |
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|
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$top =~ /([0-9]+?)([KMG]) swap in use/; |
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my($swap_in_use) = $1; |
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$swap_in_use*=1024 if $2 eq "G"; |
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$swap_in_use/=1024 if $2 eq "K"; |
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# DO NOT print this one out... save it for in a moment... |
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|
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$top =~ /([0-9]+?)([KMG]) swap free/; |
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my($swap_free) = $1; |
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$swap_free*=1024 if $2 eq "G"; |
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$swap_free/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.swap.free", $swap_free); |
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|
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&print_pair(0, "packet.swap.total", $swap_free + $swap_in_use); |
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} |
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elsif ($ostype eq "FreeBSD") { |
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&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
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&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
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&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
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&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
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&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*running/); |
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&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
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&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% system/); |
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&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% interrupt/); |
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&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
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|
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# FreeBSD is a bit different, we need to get user and nice. |
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my($user) = 0; |
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if($top =~ /([^\s]+?)% user/) { $user += $1; } |
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if($top =~ /([^\s]+?)% nice/) { $user += $1; } |
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&print_pair(0, "packet.cpu.user", $user); |
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|
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# The following need to be specified in megabytes. |
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# If they are preceeded by a G, then multiply by 1024. |
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|
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# get RAM slightly differently |
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my($real) = `$sysctlbin -n hw.physmem`; |
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my($v_free_count) = `$sysctlbin -n vm.stats.vm.v_free_count`; |
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my($v_page_size) = `$sysctlbin -n vm.stats.vm.v_page_size`; |
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my($free) = $v_free_count * $v_page_size; |
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|
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# turn bytes to megabytes |
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$real = ($real / 1024) / 1024; |
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$free = ($free / 1024) / 1024; |
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|
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&print_pair(0, "packet.memory.total", $real); |
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&print_pair(0, "packet.memory.free", $free); |
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|
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$top =~ /Swap: ([0-9]+?)([KMG]) Total/; |
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my($swap_total) = $1; |
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$swap_total*=1024 if $2 eq "G"; |
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$swap_total/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.swap.total", $swap_total); |
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|
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$top =~ /Swap:.*, ([0-9]+?)([KMG]) Free/; |
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my($swap_free) = $1; |
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$swap_free*=1024 if $2 eq "G"; |
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$swap_free/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.swap.free", $swap_free); |
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} |
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elsif ($ostype eq "Linux") { |
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my ($top) = ""; |
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foreach my $line (@top) { |
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$top = $line . $top; |
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} |
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$top =~ s/\n/ /g; |
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|
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&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
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&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
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&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
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&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
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&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*running/); |
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&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
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&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% system/); |
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&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% interrupt/); |
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&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
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|
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# Linux is a bit different, we need to get user and nice. |
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my($user) = 0; |
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if($top =~ /([^\s]+?)% user/) { $user += $1; } |
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if($top =~ /([^\s]+?)% nice/) { $user += $1; } |
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&print_pair(0, "packet.cpu.user", $user); |
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|
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# The following need to be specified in megabytes. |
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# If they are preceeded by a G, then multiply by 1024. |
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|
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$top =~ /Mem:.*?([0-9]+)([KMG])\s+(av|total)/; |
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my($real) = $1; |
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$real*=1024 if $2 eq "G"; |
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$real/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.memory.total", int($real)); |
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|
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$top =~ /Mem:.*?([0-9]+)([KMG])\s+free/; |
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my($free) = $1; |
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$free*=1024 if $2 eq "G"; |
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$free/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.memory.free", int($free)); |
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|
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$top =~ /Swap:.*?([0-9]+)([KMG])\s+(av|total)/; |
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my($swap_total) = $1; |
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$swap_total*=1024 if $2 eq "G"; |
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$swap_total/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.swap.total", int($swap_total)); |
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|
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$top =~ /Swap:.*?([0-9]+)([KMG])\s+free/; |
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my($swap_free) = $1; |
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$swap_free*=1024 if $2 eq "G"; |
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$swap_free/=1024 if $2 eq "K"; |
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&print_pair(0, "packet.swap.free", int($swap_free)); |
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} |
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else { |
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# we could have some catchall here |
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# but as it stands this means we'll just skip top stuff |
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# for unknown systems |
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} |
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} |
