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From "Emmanuel Lecharny" <elecha...@gmail.com>
Subject Re: Anyone get's experience with IBM JVM ?
Date Thu, 18 Jan 2007 20:43:10 GMT
I have tested Apache DS with Sun JDK, IBM J9 and JRockit, either 1.4.x and
5.0 java VM.

It was on intel processors, and Linux (FC5 an Ubuntu). So far, no problem.
AIX is another beast...

FYI, performance I got with IBM JVM was much better than with Sun JDK
(around 30% better), and jrockit was even better (40%), but this is not all
about MINA, even if MINA is the network layer of ADS.

On 1/18/07, Frédéric Brégier <fred.bregier@free.fr> wrote:
> Hi folks,
> Does anyone get an experience with the JVM from IBM ?
> I start to develop a quite complex project 6 months ago
> using my laptop under Windows and a Sun JDK (1.5 32 bits).
> This last two months I got no break inside my code,
> even in heavy load. So I decides it was time to go to the next step.
> I begin last week to make some benchmark
> on a IBM PSeries (Power 5 cpu on AIX 5.3)
> using IBM JDK (1.5 too but 64bits). I have no chance to get
> a Sun JVM for AIX since it seems Sun is not releasing this kind of
> JVM for AIX. And there is no IBM JVM for Windows
> (in fact not really, but you need to have a IBM PC, which I don't have).
> And I found some strange behaviour. Also, right now, I can't say
> if this is my app or anything else (I use also Oracle 10g as part of
> the component).
> Some of the strange behaviour I found was for instance that I get
> some null pointer exception on closing mina sessions, which I never
> get before.
> Again, I have not completely analyzed the problem so my point is :
> Does someone have made some real work using the IBM JVM ?
> I suspect different behaviour of JVMs...
> Frederic

Emmanuel Lécharny

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