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From "Ralph Einfeldt" <ralph.einfe...@uptime-isc.de>
Subject AW: Tomcat Profiling using Catalina API
Date Tue, 13 Aug 2002 14:17:11 GMT
Although it's not a profiler, you may have a look at 
http://hansel.sourceforge.net/

It's an open source coverage tool that uses JPDA.


> -----Urspr√ľngliche Nachricht-----
> Von: Simha, Kailas [mailto:kailas_simha@merck.com]
> Gesendet: Dienstag, 13. August 2002 16:00
> An: 'Tomcat Users List'
> Betreff: RE: Tomcat Profiling using Catalina API
> 
> 
> Thanks :)
> 1. I need to profile several instances of tomcat running on several
> different jvms.
> 2. I need to go per application, if necessary.
> 3. This needs to be purely in java(preferably) and portable 
> across Unix,
> Linux and Windows.
> 4. Ofcourse, there is this problem of overhead and 
> sluggishness when using
> OptimizeIt and thus it is not preferable on production systems.
> 
> > That'f be great to have ;)  It's not a trivial thing to write.
> I understand that, but even if I can have a tech. demonstrator, we can
> decide whether to take that route or not.
> 
> Let me know if I can find anything on these lines as I have reached a
> dead-end right now..
> Kailas
> 
> 
> -----Original Message-----
> From: Shapira, Yoav [mailto:Yoav.Shapira@mpi.com]
> Sent: Tuesday, August 13, 2002 9:49 AM
> To: Tomcat Users List
> Subject: RE: Tomcat Profiling using Catalina API
> 
> 
> Hi,
> 
> >I've tried out a few tools, but instead of customizing them, if it is
> >easier
> >to build one, I thought of taking that route. I have tried out
> OptimizeIt,
> >JProfiler, JBoss to name a few.
> 
> OK.  Now I move onto the realm of curiosity.  I'm a fan of OptimizeIt,
> I've found it adequate for my profiling needs.  What do you find it
> lacking?  
> 
> >Your assumption is correct - JPDA implementation specific to tomcat.
> 
> That'f be great to have ;)  It's not a trivial thing to write.  
> 
> My biggest knock on OptimizeIt is that things run 5-10 times 
> slower when
> run with OptimizeIt, but that's to be expected.  If yours is 
> faster and
> as full-featured, you have a user right here! ;)
> 
> Yoav Shapira
> Millennium ChemInformatics
> 
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