>From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] >Sent: Thursday, February 11, 2010 7:37 AM > >> From: Hadole, Nishant IN BOM SISL [mailto:nishant.had...@siemens.com] >> Subject: RE: Java heap size limit >> >> For 32 bit system, maximum memory pool can easily increased upto 2 GB. > >Not likely. The most you can set the heap to on 32-bit Windows is around 1.5 >GB; the actual value varies a great deal >depending on the versions of the >various components and the whims of Windows on a particular day.
I've managed to squeeze ~1.7GB out of the system by setting the /3G boot switch, but you want to be careful about that in your environment. That switch does have its own drawbacks. Also, as I've heard several times here, set the -Xms and -Xmx settings to the same to improve garbage collect efficiency. (did I interpret that correctly?) And as Chris says elsewhere, if you goal is to use a much larger portion of that 32Gb main, then you will have to go to a 64-bit OS version. Since you'll have to re-install everything, you should go ahead and get the Tomcat 5.5.28 installer so that it deploys the correct service wrapper. You'll also need to go get the 64-bit version of the JVM you are using. Jeff ******************************* NOTICE ********************************* This message is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by reply or by telephone (call us collect at 512-343-9100) and immediately delete this message and all its attachments.
