hey remy,
Yeah, boy does logging generate lots of GC. My
goodness, once I ran the JProbe benchmarks, I became
obvious.
I hadn't considered the logging to be a major cause,
but from the looks of it, it does :)
In a few more weeks, I will be running another series
of tests. The next time I plan on running a set with
logging turned off for comparison.
Hopefully once I get through all my testing, I will
have time to write up a "how-to" on scaling Tomcat.
I'll have to do it on my own time, but I think it will
be a good resource. Since the same "how do you scale
tomcat?" comes up repeatedly, having a detailed page
might reduce the occurance of such questions :)
peter lin
--- Remy Maucherat <[EMAIL PROTECTED]> wrote:
> > I got side tracked for a few days, but I finally
> got
> > time to run some benchmarks with JProbe, as well
> as
> > repeat a few of my original tests to verify the
> > performance.
> >
> > The tests were ran on the following systems.
> >
> > System I - 450mhz PIII, Win2K, 512mb RAM
> > programs running - mcafee, aim
> > Server - tomcat 4.0.3
> > additional connector - coyote beta 3
> >
> > System II - 600mhz PIII, win2k, 256mb RAM
> > programs running - none
> > Server - tomcat 4.0.3
> > additional connector - coyote beta 3
> >
> > load testing application
>
> Trying with some other load testing tool could be
> useful, as they may give
> out more detailed information.
> Also, in case you didn't, you should disable access
> logging when testing (it
> is slow, and generates lots of GC).
>
> Remy
>
>
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