knowledgebase/linux/misc/memory troubleshooting To see how much memory you have used over time, first set up the RimuHosting memory monitor as described at http://rimuhosting.com/howto/memory.jsp After it has run for some time, you can use this perl script to see how much memory your server has used over time, and it gives you a really simple look at how much you have used. {code:perl} #!/usr/bin/perl my $max_used = 0; my %memcounts; opendir(DH,".") || die "Unable to open current directory"; while(my $file = readdir(DH)) { if($file =~ m/memmon.txt/) { open(FILE, "<$file"); while($line = <FILE>) { if($line =~ m/buffers\/cache: +([0-9]+) +([0-9]+)/) { $used = $1; $memcounts{$used} = $memcounts{$used} ? $memcounts{$used} + 1 : 1; $max_used = $used > $max_used ? $used : $max_used; } } } } print "Max memory used: $max_used\\n\\n"; for($i = 0; $i <= $max_used; $i++) { print "$i => ".$memcounts{$i}."\\n"; } {code} The output shows the number of times that the memmon.sh script hit each amount of memory. Note that this is just a really quick version to view memory utilization. There are much better tools for long-term monitoring of memory usage (and many other things), like MRTG, Cacti, Cricket, etc 2007-06-05 11:55:35.0 2007-03-29 14:50:05.0