On 9/1/2011 12:09 PM, Tony Anecito wrote:
Two things to think about in addition to the recommendation Chuck mentioned.
1. For small requests having a large new generation in the heap helps. This
helps with the short term objects in the heap to get collected.
I'm not sure what this means, but I'll do some digging.
2. Lots of small disk IO may slow you down also. Remember http is synchronous
and has to wait for disk IO unless it is spawned off to an independent thread.
I have write caching turned on in the OS, and went through the
synchronizing work in a previous round of performance tuning a couple of
years ago.
Hope this helps.
-Tony
--- On Thu, 9/1/11, Caldarale, Charles R<chuck.caldar...@unisys.com> wrote:
From: Caldarale, Charles R<chuck.caldar...@unisys.com>
Subject: RE: Performance for many small requests
To: "Tomcat Users List"<users@tomcat.apache.org>
Date: Thursday, September 1, 2011, 9:58 AM
From: David kerber [mailto:dcker...@verizon.net]
Subject: Re: Performance for many small requests
Is there any indication from what I've said that
I need a larger heap?
Don't think so, but GC logging will tell you for
sure. The compressed OOPs capability with a small heap
should not incur any encode/decode overhead and should
improve cache hit rates.
- Chuck
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