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From "Dale, Matt" <>
Subject RE: OT (Slightly): Large 64 bit JVMs
Date Tue, 07 Dec 2004 10:43:23 GMT

You can ignore this, I never put the -d64 switch so it was running in 32 bit mode.


-----Original Message-----
From: Dale, Matt 
Sent: 06 December 2004 20:47
To: Tomcat Users List
Subject: RE: OT (Slightly): Large 64 bit JVMs

I already know that the application will use that much space. We are using the Agressive Heap
setting with an -Xmx switch so it will automatically use all the space that I'm allowing it.
I should perhaps post some of the error's i'm receiving which vary depending on what size
I set. I'll do this when I'm in the office tomorrow.

There may be other kernel parameters that i've not considered or maybe it just doesnt work.
Thanks for the input.


-----Original Message-----
From: Shapira, Yoav []
Sent: 06 December 2004 18:04
To: Tomcat Users List
Subject: RE: OT (Slightly): Large 64 bit JVMs


I have a little bit of experience in this area, not much.


The JVM will grow as much as it needs subject to your -Xms/-Xmx and
other settings, as I'm sure you know already.  So could it be it's not
growing past 3300MB because it doesn't need to?  Stress it out with a
bigger load, or maybe try -Xms4G just for testing, to see what happens


Yoav Shapira


-----Original Message-----
From: Dale, Matt [] 
Sent: Monday, December 06, 2004 1:02 PM
To: Tomcat Users List (E-mail)
Subject: OT (Slightly): Large 64 bit JVMs



Does anyone have any experience of running large 64 bit JVMs on Solaris.

We've got a box with 16GB of RAM and despite increasing the kernel
parameter shmmax I can't get a JVM to be any bigger than about 3300MB.

Any hints or tips or links appreciated. 


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