Re: Java performance...

[Charles Wilt <charles.wilt@xxxxxxxxx>]

v5r4 includes both the original 64-bit java engine and the newer 32-bit one...

Which one are you using?

If you don't need 64-bit, the 32-bit one performs much better.

Charles

On Wed, Jun 29, 2011 at 4:16 PM, Wyatt, Chris (FGWA-IL)
<Chris.Wyatt@xxxxxxxx> wrote:
> Hello all,
>
> We are running a java client/server app on the AS400/iSeries/System i/IBMi/Powerwhatevertheyrecallingitnow.  (MAPICS/Infor ERP XA/whatevertheyrecallingitnow)
>
> We're running the MAPICS client mostly from a MS Terminal Server next to the AS400.  The TS is being accessed from a WAN basically all over the world.
>
> With this setup, we have an absurd number of potential bottlenecks/slowdowns and etc.  And we are having performance problems.
>
> We're trying our best to drill into the performance problems in a systematic way but it's been difficult.  But one of the things we've been looking at hard is the Java performance on the AS400.
>
> Currently, we are at V5R4 of the OS.  We've been told that upgrading to V6R1 will bring a large Java performance benefit.
>
> My question:  Have you found this to be the case?
>
> Obviously, we'll be going to V6R1 eventually anyway.  But it would be nice if we could look forward to Java performance improvement.
>
> Part of the reason I'm asking is that IBM always says the *next* version of the OS has incredible Java performance.  And then we're always underwhelmed.
>
> Thank you.
>
> PS:  I'd love to hear any tips you may have on our situation.
>
> Chris Wyatt
> ERP Developer/Analyst
> FleetwoodGoldcoWyard
> A Barry-Wehmiller Company
>
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