On 3/5/09 12:15 PM, "Barton Wright" <barton.wright@streambase.com> wrote:
By the way, if you're using 32-bit Vista, you only have available about 3.0 to 3.5 GB of RAM of the 4.0 GB installed, depending on your hardware configuration. This is not a Vista or Windows limitation: 32-bit versions of OS X and Linux are also limited to 3.0-3.5 GB of RAM on Intel machines with 4 GB installed. The reason why is a long story, so let's call it a hardware limitation.
In addition, JVMs running on 32-bit OSes are limited to about 1.5 to 2 Gig of heap regardless of amount of RAM installed. The exact amount varies based on OS and other processes running, but for Windows is typically about 1.2 Gig. 64-bit OSes allow essentially unlimited heap space (at least 6Gig or more). Cheers, Eliot ---- Eliot Kimber | Senior Solutions Architect | Really Strategies, Inc. email: ekimber@reallysi.com <mailto:ekimber@reallysi.com> office: 610.631.6770 | cell: 512.554.9368 2570 Boulevard of the Generals | Suite 213 | Audubon, PA 19403 www.reallysi.com <http://www.reallysi.com> | http://blog.reallysi.com <http://blog.reallysi.com> | www.rsuitecms.com <http://www.rsuitecms.com>