On Fri, 21 May 2004, Mark Lybarger wrote:

> > -----Original Message-----
> > From: Jeffery Painter [mailto:[EMAIL PROTECTED]
> > Sent: Friday, May 21, 2004 10:54 AM
> > To: Turbine Users List
> > Subject: Re: OutOfMemory after reloads
> > 
> > 
> > 
> > what do you mean by reloaded many times? do you mean starting 
> > and stopping 
> > the container? do you mean user's logging in and out? 
> > 
> > are you still using turbine 2.1? It isn't fun, but it is 
> > worth updating to 
> > the later versions of Turbine. I saw significant performance gains in 
> > going from 2.1 to 2.2, and 2.3 seems even better.
> 
> Could you give a little more info on the performance gains by upgrading turbine? 
> What changes to turbine itself would provide performance enhancements?  What scale 
> of improvements did you notice?  
> 
> I'm highly in favor of getting our turbine current, but it would be much easier to 
> get it done if there were a a tangable benefit (performance improvement).  
> 

I have to say it is really just from what my users are telling me.
At the time we updated to Turbine 2.2 from 2.1 performance did "seem" 
to improve significantly. I don't have any hard facts to back this up.

I know there were plenty of bug fixes from 2.1 to 2.2 and moving from 2.1 
to 2.2 was a bigger pain than moving from 2.2 to 2.3

Still putting off changing my old app code over to 2.3, but I have 
building all my newer apps on 2.3 and it seems better as well.

We also switched to using the blackdown java compiler which sped up build 
time and then made the switch from Tomcat to Jetty which was the single 
biggest performance boost we achieved. 

We now support over 25 users who are in the main order entry system all 
day long and several thousand outside users who access limited parts 
with simple forms with no trouble at all.

the blackdown jdk decreased build time on our application from around 50 
seconds on a clean build with sun's jdk to 13 seconds with blackdown.

my turbine app currently has about 575 class files


Jeff Painter

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