Using Java on Solaris

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rlanier@harris.com - 18 Jul 2007 19:15 GMT

Hi,

I am using a Java appliction on Solaris 9 and am having trouble. The
application is Electric VLSI program, and all was working properly
until I increased the JVM space (whenver I would load an example
circuit, the tool would say it was out of heap space on the terminal
window). Now, however, java refuses to come up and sends this message
to the command line:

Setting maximum permanent space (2nd GC) to 1000MEG

I've tried setting the heap space manually using -Xms and -Xmx
options, but the above problem still persists.

Has anyone seen this, and do you know how to get around it?

Thanks.

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Patricia Shanahan - 18 Jul 2007 19:42 GMT

> Hi,
>
[quoted text clipped - 13 lines]
>
> Thanks.

Java on Solaris 9 can run in 32 bit or 64 bit mode. Which are you using?

Patricia

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Lothar Kimmeringer - 18 Jul 2007 21:51 GMT

> I've tried setting the heap space manually using -Xms and -Xmx
> options, but the above problem still persists.

How exactly are you setting this. Can you post all the messages
that are coming up? The limit on 32 Bit Virtual Machines is
ca. 1500 MB, so setting a higher value will be ignored or
refused.

Please don't multipost. It's consuming bandwith and let people
get pissed.

Regards, Lothar

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Nigel Wade - 19 Jul 2007 10:59 GMT

>> I've tried setting the heap space manually using -Xms and -Xmx
>> options, but the above problem still persists.
[quoted text clipped - 3 lines]
> ca. 1500 MB, so setting a higher value will be ignored or
> refused.

It's not a limitation of the 32bit JVM but the OS. On my 32bit Linux desktop I
can set heap up to -Xmx2500m (this system has 1G RAM and 2G swap), on another
Linux system (64bit, but running the 32bit JVM) I can run java with -Xmx3600m
(that system has 32G RAM). The VM address limit for 32bit should be 4GB.

I haven't tried it on Solaris (the only Solaris system I have has nowhere near
that amount of VM), and the message the OP posted is rather strange - I've
never seen Java refer to memory in MEG before.

> Please don't multipost. It's consuming bandwith and let people
> get pissed.

Yes. It is very annoying if you have taken the time and effort to answer a post
in one NG, only to find that someone else has already posted pretty much the
same answer in another thread in an alternate NG.

Cross-post if you must, but don't multi-post.

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Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555

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Using Java on Solaris

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