Big perfs problems with IBM/JVM 1.4

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Jean-Louis Berliet - 24 Feb 2004 10:51 GMT

I wrote a simple application that generates a pdf file using jasperreport.
When i run this application with IBM jdk 1.3.1 it takes 10 seconds to
generate the pdf file.
When i run this application with IBM jdk 1.4.0 it takes 46 seconds to
generate the pdf file.
I tried differents OS : linux (redhat), aix 5.1 and windows 2000 but
generating the pdf with the IBM JVM 1.4 is always slower than the IBM JVM
1.3.1.

Any ideas

Thanks

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Michael Amling - 25 Feb 2004 15:08 GMT

> I wrote a simple application that generates a pdf file using jasperreport.
> When i run this application with IBM jdk 1.3.1 it takes 10 seconds to
[quoted text clipped - 6 lines]
>
> Any ideas

I run Java 1.3.1 and recommend that our customers install 1.3.1,
because of the sad stories I hear from people running 1.4.

--Mike Amling

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Skippy - 25 Feb 2004 22:19 GMT

> I run Java 1.3.1 and recommend that our customers install 1.3.1,
> because of the sad stories I hear from people running 1.4.

1.4.2 has a major performance increase for calculations (SSE & SSE2), so
from my point of view: use the latest, until you encounter the problems
yourself.

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Jean-Louis Berliet - 26 Feb 2004 16:44 GMT

Where could i find the 1.4.2 IBM/JVM for LINUX or WINDOWS 2000 ?
I couldn't find it on the IBM site !

Thanks a lot.

> > I run Java 1.3.1 and recommend that our customers install 1.3.1,
> > because of the sad stories I hear from people running 1.4.
>
> 1.4.2 has a major performance increase for calculations (SSE & SSE2), so
> from my point of view: use the latest, until you encounter the problems
> yourself.

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Moazam Raja - 27 Feb 2004 05:05 GMT

I think he meant the Sun 1.4.2 JVM.

-Moazam

> Where could i find the 1.4.2 IBM/JVM for LINUX or WINDOWS 2000 ?
> I couldn't find it on the IBM site !
[quoted text clipped - 7 lines]
>>from my point of view: use the latest, until you encounter the problems
>>yourself.

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Ben_ - 27 Feb 2004 12:19 GMT

Hello,

Where did you found the IBM JVM 1.4.0 ?

I seem to recall from posts in the ibm.software.websphere.* newsgroups, that
there is no IBM JVM v1.4.x available as a stand-alone product, but it's
rather bundled with products.

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Big perfs problems with IBM/JVM 1.4

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