| 1 |
#!/usr/bin/perl -w |
| 2 |
|
| 3 |
# |
| 4 |
# i-scream central monitoring system |
| 5 |
# http://www.i-scream.org.uk |
| 6 |
# Copyright (C) 2000-2002 i-scream |
| 7 |
# |
| 8 |
# This program is free software; you can redistribute it and/or |
| 9 |
# modify it under the terms of the GNU General Public License |
| 10 |
# as published by the Free Software Foundation; either version 2 |
| 11 |
# of the License, or (at your option) any later version. |
| 12 |
# |
| 13 |
# This program is distributed in the hope that it will be useful, |
| 14 |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
# GNU General Public License for more details. |
| 17 |
# |
| 18 |
# You should have received a copy of the GNU General Public License |
| 19 |
# along with this program; if not, write to the Free Software |
| 20 |
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 21 |
# |
| 22 |
|
| 23 |
#----------------------------------------------------------------- |
| 24 |
# i-scream host plugin - top parsing (cpu, proc, mem, & swap) |
| 25 |
# $Author: tdb $ |
| 26 |
# $Id: i-scream_top.pl,v 1.5 2002/05/18 18:15:57 tdb Exp $ |
| 27 |
# |
| 28 |
# A short perl script to get the cpu loads, process details, |
| 29 |
# memory usage and swap usage by parsing top. |
| 30 |
# |
| 31 |
# nb. this is a rather 'heavy' process to run :( |
| 32 |
#----------------------------------------------------------------- |
| 33 |
|
| 34 |
|
| 35 |
$| = 1; |
| 36 |
|
| 37 |
|
| 38 |
# You'd be silly not to use this ;) |
| 39 |
use strict; |
| 40 |
|
| 41 |
# Get the OS type from the args, or try towork it out |
| 42 |
my($ostype) = $ARGV[0]; |
| 43 |
$ostype = `uname -s` if not defined $ostype; |
| 44 |
chomp($ostype); |
| 45 |
|
| 46 |
# Decide which paths we should use. |
| 47 |
my($topbin); |
| 48 |
my($sysctlbin); |
| 49 |
if ($ostype eq "SunOS") { |
| 50 |
# covers: Solaris 7/8 |
| 51 |
$topbin = "/usr/local/sbin/top -d2 -s1 0"; |
| 52 |
} |
| 53 |
elsif ($ostype eq "Linux") { |
| 54 |
# covers: Debian r2.2 |
| 55 |
$topbin = "/usr/bin/top -d1 -n2 -b"; |
| 56 |
} |
| 57 |
elsif ($ostype eq "FreeBSD") { |
| 58 |
# covers: FreeBSD 4.X |
| 59 |
$topbin = "/usr/bin/top -d2 -s1 0"; |
| 60 |
$sysctlbin = "/sbin/sysctl"; |
| 61 |
} |
| 62 |
else { |
| 63 |
print "i-scream_top.pl Error: Unable to identify system type - \"$ostype\".\n"; |
| 64 |
print "\"uname -s\" does not report one of the following known types;\n"; |
| 65 |
print " SunOS, Linux, FreeBSD\n"; |
| 66 |
exit(1); |
| 67 |
} |
| 68 |
|
| 69 |
# Run the following components: - |
| 70 |
&include_top(); |
| 71 |
|
| 72 |
# End the program normally. |
| 73 |
exit(0); |
| 74 |
|
| 75 |
|
| 76 |
|
| 77 |
|
| 78 |
# sub to print pairs of data, separated by a single space character. |
| 79 |
# If the second argument is undefined, then the pair is still printed, |
| 80 |
# however, the value shall be displayed as the the 'default' value |
| 81 |
# if the passed value was undefined. |
| 82 |
sub print_pair($$$) { |
| 83 |
my($default, $name, $value) = @_; |
| 84 |
|
| 85 |
if (!defined $value) { |
| 86 |
$value = $default; |
| 87 |
} |
| 88 |
|
| 89 |
# Remove the trailing linefeed if we've not already done so. |
| 90 |
chomp($value); |
| 91 |
|
| 92 |
# print the pair of data with a space inbetween. |
| 93 |
print "$name $value\n"; |
| 94 |
} |
| 95 |
|
| 96 |
|
| 97 |
# sub to run a series of regexps on the output of 'top' to |
| 98 |
# gather various machine statistics. |
| 99 |
sub include_top() { |
| 100 |
|
| 101 |
# Find out some numbers from top. |
| 102 |
my(@top) = `$topbin`; |
| 103 |
my($top) = join(" ", @top); |
| 104 |
$top =~ s/\n/ /g; |
| 105 |
|
| 106 |
if($ostype eq "SunOS") { |
| 107 |
&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
| 108 |
&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
| 109 |
&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
| 110 |
&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
| 111 |
&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*on cpu/); |
| 112 |
&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
| 113 |
&print_pair(0, "packet.cpu.user", $top =~ /([^\s]+?)% user/); |
| 114 |
&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/); |
| 115 |
&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/); |
| 116 |
&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
| 117 |
|
| 118 |
# The following need to be specified in megabytes. |
| 119 |
# If they are preceeded by a G, then multiply by 1024. |
| 120 |
|
| 121 |
$top =~ /([0-9]+?)([KMG]) real/; |
| 122 |
my($real) = $1; |
| 123 |
$real*=1024 if $2 eq "G"; |
| 124 |
$real/=1024 if $2 eq "K"; |
| 125 |
&print_pair(0, "packet.memory.total", $real); |
| 126 |
|
| 127 |
$top =~ /([0-9]+?)([KMG]) free/; |
| 128 |
my($free) = $1; |
| 129 |
$free*=1024 if $2 eq "G"; |
| 130 |
$free/=1024 if $2 eq "K"; |
| 131 |
&print_pair(0, "packet.memory.free", $free); |
| 132 |
|
| 133 |
$top =~ /([0-9]+?)([KMG]) swap in use/; |
| 134 |
my($swap_in_use) = $1; |
| 135 |
$swap_in_use*=1024 if $2 eq "G"; |
| 136 |
$swap_in_use/=1024 if $2 eq "K"; |
| 137 |
# DO NOT print this one out... save it for in a moment... |
| 138 |
|
| 139 |
$top =~ /([0-9]+?)([KMG]) swap free/; |
| 140 |
my($swap_free) = $1; |
| 141 |
$swap_free*=1024 if $2 eq "G"; |
| 142 |
$swap_free/=1024 if $2 eq "K"; |
| 143 |
&print_pair(0, "packet.swap.free", $swap_free); |
| 144 |
|
| 145 |
&print_pair(0, "packet.swap.total", $swap_free + $swap_in_use); |
| 146 |
} |
| 147 |
elsif ($ostype eq "FreeBSD") { |
| 148 |
&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
| 149 |
&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
| 150 |
&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
| 151 |
&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
| 152 |
&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*running/); |
| 153 |
&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
| 154 |
&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% system/); |
| 155 |
&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% interrupt/); |
| 156 |
&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
| 157 |
|
| 158 |
# FreeBSD is a bit different, we need to get user and nice. |
| 159 |
my($user) = 0; |
| 160 |
if($top =~ /([^\s]+?)% user/) { $user += $1; } |
| 161 |
if($top =~ /([^\s]+?)% nice/) { $user += $1; } |
| 162 |
&print_pair(0, "packet.cpu.user", $user); |
| 163 |
|
| 164 |
# The following need to be specified in megabytes. |
| 165 |
# If they are preceeded by a G, then multiply by 1024. |
| 166 |
|
| 167 |
# get RAM slightly differently |
| 168 |
my($real) = `$sysctlbin -n hw.physmem`; |
| 169 |
my($v_free_count) = `$sysctlbin -n vm.stats.vm.v_free_count`; |
| 170 |
my($v_page_size) = `$sysctlbin -n vm.stats.vm.v_page_size`; |
| 171 |
my($free) = $v_free_count * $v_page_size; |
| 172 |
|
| 173 |
# turn bytes to megabytes |
| 174 |
$real = ($real / 1024) / 1024; |
| 175 |
$free = ($free / 1024) / 1024; |
| 176 |
|
| 177 |
&print_pair(0, "packet.memory.total", $real); |
| 178 |
&print_pair(0, "packet.memory.free", $free); |
| 179 |
|
| 180 |
$top =~ /Swap: ([0-9]+?)([KMG]) Total/; |
| 181 |
my($swap_total) = $1; |
| 182 |
$swap_total*=1024 if $2 eq "G"; |
| 183 |
$swap_total/=1024 if $2 eq "K"; |
| 184 |
&print_pair(0, "packet.swap.total", $swap_total); |
| 185 |
|
| 186 |
$top =~ /Swap:.*, ([0-9]+?)([KMG]) Free/; |
| 187 |
my($swap_free) = $1; |
| 188 |
$swap_free*=1024 if $2 eq "G"; |
| 189 |
$swap_free/=1024 if $2 eq "K"; |
| 190 |
&print_pair(0, "packet.swap.free", $swap_free); |
| 191 |
} |
| 192 |
elsif ($ostype eq "Linux") { |
| 193 |
my ($top) = ""; |
| 194 |
foreach my $line (@top) { |
| 195 |
$top = $line . $top; |
| 196 |
} |
| 197 |
$top =~ s/\n/ /g; |
| 198 |
|
| 199 |
&print_pair(0, "packet.processes.total", $top =~ /([0-9]+?) processes:/); |
| 200 |
&print_pair(0, "packet.processes.sleeping", $top =~ /([0-9]+?) sleeping/); |
| 201 |
&print_pair(0, "packet.processes.zombie", $top =~ /([0-9]+?) zombie/); |
| 202 |
&print_pair(0, "packet.processes.stopped", $top =~ /([0-9]+?) stopped/); |
| 203 |
&print_pair(0, "packet.processes.cpu", $top =~ /([0-9]+?)\s*running/); |
| 204 |
&print_pair(0, "packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
| 205 |
&print_pair(0, "packet.cpu.kernel", $top =~ /([^\s]+?)% system/); |
| 206 |
&print_pair(0, "packet.cpu.iowait", $top =~ /([^\s]+?)% interrupt/); |
| 207 |
&print_pair(0, "packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
| 208 |
|
| 209 |
# Linux is a bit different, we need to get user and nice. |
| 210 |
my($user) = 0; |
| 211 |
if($top =~ /([^\s]+?)% user/) { $user += $1; } |
| 212 |
if($top =~ /([^\s]+?)% nice/) { $user += $1; } |
| 213 |
&print_pair(0, "packet.cpu.user", $user); |
| 214 |
|
| 215 |
# The following need to be specified in megabytes. |
| 216 |
# If they are preceeded by a G, then multiply by 1024. |
| 217 |
|
| 218 |
$top =~ /Mem:.*?([0-9]+)([KMG])\s+(av|total)/; |
| 219 |
my($real) = $1; |
| 220 |
$real*=1024 if $2 eq "G"; |
| 221 |
$real/=1024 if $2 eq "K"; |
| 222 |
&print_pair(0, "packet.memory.total", int($real)); |
| 223 |
|
| 224 |
$top =~ /Mem:.*?([0-9]+)([KMG])\s+free/; |
| 225 |
my($free) = $1; |
| 226 |
$free*=1024 if $2 eq "G"; |
| 227 |
$free/=1024 if $2 eq "K"; |
| 228 |
&print_pair(0, "packet.memory.free", int($free)); |
| 229 |
|
| 230 |
$top =~ /Swap:.*?([0-9]+)([KMG])\s+(av|total)/; |
| 231 |
my($swap_total) = $1; |
| 232 |
$swap_total*=1024 if $2 eq "G"; |
| 233 |
$swap_total/=1024 if $2 eq "K"; |
| 234 |
&print_pair(0, "packet.swap.total", int($swap_total)); |
| 235 |
|
| 236 |
$top =~ /Swap:.*?([0-9]+)([KMG])\s+free/; |
| 237 |
my($swap_free) = $1; |
| 238 |
$swap_free*=1024 if $2 eq "G"; |
| 239 |
$swap_free/=1024 if $2 eq "K"; |
| 240 |
&print_pair(0, "packet.swap.free", int($swap_free)); |
| 241 |
} |
| 242 |
else { |
| 243 |
# we could have some catchall here |
| 244 |
# but as it stands this means we'll just skip top stuff |
| 245 |
# for unknown systems |
| 246 |
} |
| 247 |
} |
