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#!/usr/bin/perl -w |
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|
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#----------------------------------------------------------------- |
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# Machine statistics grabber |
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# $Author: $ |
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# $Id: $ |
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# |
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# A Perl script to return various information about a host machine |
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# by examining the output of some common Unix/Linux commands. |
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# This is a stopgap to act as a generic way of collecting the |
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# data. It is perhaps more reliable than the current Java host |
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# at doing this and it can obviously be used by a C++ program as |
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# well until the C++ host is ready to find the information out |
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# itself. |
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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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&include_users(); |
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&include_top(); |
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|
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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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sub print_pair($$) { |
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my($name, $value) = @_; |
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|
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if (!defined $value) { |
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$value = "unknown"; |
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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 $value\n"; |
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} |
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|
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|
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sub include_users() { |
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|
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# Find out all users on this machine. |
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my($users) = `users`; |
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my(@users) = split(/\s+/, $users); |
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|
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my($users_count) = $#users + 1; |
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my($users_list) = $users; |
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|
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&print_pair("packet.users.count", $users_count); |
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&print_pair("packet.users.list", $users_list); |
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} |
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|
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|
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sub include_top() { |
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|
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# Find out some numbers from top. |
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my(@top) = `top -d2 -s1 0`; |
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my($top) = join(" ", @top); |
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$top =~ s/\n//g; |
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|
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&print_pair("packet.load.load1", $top =~ /load averages:\s*([^\s]+?),/); |
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&print_pair("packet.load.load5", $top =~ /load averages:\s*.+?,\s*([^\s]+?),/); |
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&print_pair("packet.load.load15", $top =~ /load averages:\s*.+?,\s*.+?,\s*([^\s]+?)\s*/); |
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&print_pair("packet.processes.total", $top =~ /([^\s]+?) processes:/); |
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&print_pair("packet.processes.sleeping", $top =~ / ([^\s]+?) sleeping/); |
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&print_pair("packet.processes.zombie", $top =~ / ([^\s]+?) zombie/); |
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&print_pair("packet.processes.stopped", $top =~ / ([^\s]+?) stopped/); |
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&print_pair("packet.processes.cpu", $top =~ /([^\s]+?)\s*on cpu/); |
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&print_pair("packet.cpu.idle", $top =~ /([^\s]+?)% idle/); |
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&print_pair("packet.cpu.user", $top =~ /([^\s]+?)% user/); |
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&print_pair("packet.cpu.kernel", $top =~ /([^\s]+?)% kernel/); |
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&print_pair("packet.cpu.iowait", $top =~ /([^\s]+?)% iowait/); |
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&print_pair("packet.cpu.swap", $top =~ /([^\s]+?)% swap/); |
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&print_pair("packet.memory.real", $top =~ /([^\s]+?)[MG] real/); |
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&print_pair("packet.memory.free", $top =~ /([^\s]+?)[MG] free/); |
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&print_pair("packet.memory.swap_in_use", $top =~ /([^\s]+?)[MG] swap in use/); |
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&print_pair("packet.memory.swap_free", $top =~ /([^\s]+?)[MG] swap free/); |
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|
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} |
