Trevor Thank you for your reply. In our installation we are seeing: Running 32 bit java on 32 bit RHEL5 you will get up to about 2660MB. With a Kernel patch, our RHEL5 (Tikanga) is able to access 16 GB of RAM. If 32 bit JRE is not able to access more than 2700 MB, would like to know, if it is the limitation of JRE or the OS ? Would like to know, if there is there any patch to circumvent this problem ? Thanks
--- On Mon, 1/11/10, Trevor Hemsley <[email protected]> wrote: From: Trevor Hemsley <[email protected]> Subject: Re: [rhelv5-list] Max address space for a process in 32 bit version of Linux To: [email protected], "Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list" <[email protected]> Date: Monday, January 11, 2010, 10:55 AM Running 32 bit java on 32 bit RHEL5 you will get up to about 2700MB on a good day. Running 32 bit java on 64 bit RHEL5 you will get up to 3700MB Running 64 bit java on 64 bit RHEL5 you will get something ridiculous like 89TB. To test you can run java -Xmx2700m -version and if it does not work, reduce the number by a fairly large amount then binary search the difference. On 10/01/2010 17:49, Jay wrote: Hello OS : Redhat Enterprise Linux Ver 5 (Tikanga) Would like to know what is the maximum memory that a java process can access ? $ java -version java version "1.6.0_14" Java(TM) SE Runtime Environment (build 1.6.0_14-b08) Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing) Thanks _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list -- Trevor Hemsley Infrastructure Engineer ................................................. C A L Y P S O Brighton, UK OFFICE +44 (0) 1273 666 350 FAX +44 (0) 1273 666 351 ................................................. www.calypso.com This electronic-mail might contain confidential information intended only for the use by the entity named. If the reader of this message is not the intended recipient, the reader is hereby notified that any dissemination, distribution or copying is strictly prohibited. P Please consider the environment before printing this e-mail
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