On 11/16/06, Tom <[EMAIL PROTECTED]> wrote:
At work we're trying to migrate from running our J2EE application on
Windows to running on Linux (RHE4). Our application runs on Tomcat with
Apache (SSL) in front of it serving up images and stylesheets. We first
tested performance with just Tomcat running on both platforms and
unsurprisingly the Linux app ran faster in almost every situation.
However when we added Apache to the mix suddenly the Windows app
outperformed the Linux app handily. I was very surprised to see this but
I'm not sure what else to check. Does anyone have any ideas of where we
could look to see if we have a misconfiguration? Or maybe Apache just
runs faster on Windows?
Apache was originally built for Unix machines, so I find this hard to
believe. Stock RHEL4 Apache rpms come with a ton of stuff built in
that don't need to be running - I'd first check what modules are being
loaded at startup. It could be the stock Windows version has fewer
things in memory and therefore can run faster - I'd compare Apache
conf files of the two. If you really want a performance increase,
compile Apache from source and statically link all those modules into
the Apache binary.
Also, as has been mentioned, mpm vs. threaded could make a difference
as well. Apache 2.0 vs. 1.0 makes a big difference too in the type of
files being delivered.
Jesse
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