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Subject: Re: Off Topic: Java developers please read

Author: James Swafford

Date: 05:32:24 11/10/05

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On November 09, 2005 at 23:50:23, Michael Yee wrote:

>You can also set some jvm parameters relating to the heap size:
>
>http://www.caucho.com/resin-3.0/performance/jvm-tuning.xtp
>
>I've run into problems where I needed to increase the max heap size because I
>had some very large data structure. But if you happen to know the max amount of
>memory your program would need at any time, maybe you could limit it to that?
>
>Michael

Yes, I actually have done that.  I increased the initial heap to 64m
and max to 128m.  I've also done a memory profile
(http://www.khelekore.org/jmp/),
which is a pretty nice package.  It never showed the heap growing very
large.

I should've mentioned that we're using 1.6 (Mustang) on the clients.
It's not production yet-- it's beta.  But, unfortunately, 1.5 was a
real dog in terms of speed (just clicking around was horrible, and
it's well known that 1.5 suffered some serious regression in terms of
speed).  There is a bug in the HTMLEditorKit in 1.4 which was fixed
in Mustang, so we went with it.  I think that decision has come back
to bite me... I seriously think the memory leak is coming from the JDK.

--
James


>
>P.S. If you find a good solution, please post it since I'd be interested (and
>maybe others too).



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