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From Chris Cherrett <>
Subject Re: Tomcat Requirements?
Date Tue, 30 Nov 2004 10:30:52 GMT
Thank you for the suggestions.

I had the client do just that this afternoon. 

Tomcat averaged 15% CPU
Mysql spiked the CPU usage to 100% when hit with long queries.

Would this be an indication of the need for RAM, or the need for a faster CPU?

They are running 360MB of RAM. P3 450


On November 30, 2004 03:20 am, Peter Crowther wrote:
> > From: Chris Cherrett []
> > I have a client who is claiming that my software is slowing
> > down. I cannot determine why this would be.
> Profile it - what's slow?  Start Admin Tools>Performance, add:
> Processor>%CPU time
> Memory>Pages/sec
> Physical Disk>Avg Disk Queue Length
> Are you seeing high CPU use?  If so, a faster CPU is appropriate.
> Are you seeing high pages/sec and high disk I/O (queue length regularly
> above 3 for that config would be unpleasant)?  If so, add RAM.
> Are you seeing high disk I/O without high pages/sec?  If so, something's
> hammering your disk but your memory's OK... are you using a database?
> Are you seeing none of these?  If so, check things like Windows
> authentication - you don't want to be waiting for auth responses.
> I know, I know, this is all just general Windows troubleshooting.  But
> we can't give advice on improving performance until we have more
> information on where the bottleneck is.
> 		- Peter
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