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From Apache Wiki <wikidi...@apache.org>
Subject [Tomcat Wiki] Update of "FAQ/Performance and Monitoring" by GianlucaVarisco
Date Wed, 28 Nov 2007 19:14:07 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Tomcat Wiki" for change notification.

The following page has been changed by GianlucaVarisco:
http://wiki.apache.org/tomcat/FAQ/Performance_and_Monitoring

New page:
== Preface ==
This is about Tomcat performance.

 * [thread] [http://marc.theaimsgroup.com/?t=104455383100002&r=1&w=2 Tomcat Performance
Concerns]
 * [thread] [http://marc.theaimsgroup.com/?t=103598885300001&r=1&w=2 How do I increase
performance on Tomcat?]

Other (non-exhaustive) notes:

 * Stress test your webapp. You can do this via [http://jakarta.apache.org/jmeter/ JMeter],
[http://www.joedog.org/siege/ siege], [http://httpd.apache.org/test/flood/ flood], and other
tools. Google is your friend.
 * Tweak your UNIX box! Look at ulimit and kernel parameters.
 * Bad design will hurt performance.
 * Look at [http://java.quest.com/jprobe/jprobe.shtml JProbe], or [http://www.borland.com/optimizeit/
OptimizeIt], or other profiling tools. Lots of people recommend these tools. This is not an
endorsement for them, I just notice other people like them.

== Questions ==

'''Is Tomcat faster than serving static HTML pages than apache?'''

Yes depending on how you tune it. And NO depending on how you tune it. Anything less starts
a religious war. We recommend performing your own benchmarks and [http://marc.theaimsgroup.com/?l=tomcat-user&m=106036177509367&w=2
see for yourself].

'''Is there an application-specific comparison between Tomcat and Resin or other containers?'''

[http://raibledesigns.com/page/rd?anchor=resin_slower_than_tomcat_fails Here's] one comparing
recent versions of Resin and Tomcat running [http://raibledesigns.com/wiki/Wiki.jsp?page=AppFuse
AppFuse].

'''Is there a comprehensive, up-to-date, detailed benchmark comparing various servlet containers,
including Tomcat?'''

Yes. Here's the most comprehensive and objective one we've found to date: [http://www.webperformanceinc.com/library/ServletReport/
Web Performance, Inc.'s comparison].

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