Just to be clear, are you saying it is better to have more simultaneous
requests in that scenario, or less instances, or both?

- Calvin

-----Original Message-----
From: Sean Corfield [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, March 30, 2005 3:31 PM
To: CF-Talk
Subject: Re: CF7 instances and server memory

On Wed, 30 Mar 2005 07:56:36 -0500, Calvin Ward <[EMAIL PROTECTED]> wrote:
> Just to be nuts about it, what if someone wanted to have 6 instances on a
2
> CPU box, would it be reasonable to have 1 simultaneous request per CPU?

The overhead of switching between JVM processes would probably catch
you there. Switching threads (within a JVM) is lightweight, switching
instances is not.

> On another note, I've seen where performance was significantly improved by
> dropping the heap size down significantly (I'm talking from 1 gig to 256
> megs in a busy environment).

Yes, because garbage collection can speed up when it has less to do.
Tuning garbage collection is a serious black art - there's lot of info
out there about it and there are a *lot* of GC parameters you can
tweak!
-- 
Sean A Corfield -- http://corfield.org/
Team Fusebox -- http://fusebox.org/
Got Gmail? -- I have 50, yes 50, invites to give away!

"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood



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