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Larry,

Larry Prikockis wrote:
| Mark H. Wood wrote:
|> That's certainly worth thinking about.  What exactly do you mean by
|> "performance"?
|
| good point... shoulda been more specific-- we were mainly looking at raw
| connections per second and throughput type metrics.  Under heavy load,
| we were seeing simple page requests taking 15-20 seconds to return while
| cpu load, memory usage, free connections (tomcat, apache and database
| pool) all looked good.

Yikes!

I wonder if Apache httpd was accepting and queuing more connections than
Tomcat is doing when Apache httpd is out of the picture. That might
cause more delays and fewer errors in your load test.

Are you eliminating requests that are outright refused (due to a full
server-side request processing queue) from your performance metrics? If
so, you may not be comparing the same Apache httpd configuration versus
Tomcat. Do you have the same size request queue, request processors,
etc. in both configurations?

- -chris
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