Naturally this depends on the OS/Arch hence the reason I mention that. Adobe must be doing something very particular with their JVM setup Sean. For example running a 32-bit JVM on a 64-bit Solaris. I would certainly like to know if that's what they are doing and to know how stable that is.
A straight quote from Sun on this... On most modern 32-bit Windows systems the maximum heap size will range from 1.4G to 1.6G. On 32-bit Solaris kernels the address space is limited to 2G. On 64-bit operating systems running the 32-bit VM, the max heap size can be higher, approaching 4G on many Solaris systems. John Mason [EMAIL PROTECTED] 770.337.8363 www.FusionLink.com - ColdFusion and Flex hosting Now offering ColdFusion 8 Enterprise hosting FREE Subversion hosting -----Original Message----- From: Sean Corfield [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 07, 2007 4:02 PM To: CF-Talk Subject: Re: coldfusion 8 and memory On 8/7/07, John Mason <[EMAIL PROTECTED]> wrote: > limitation, but to run CF on 64-bit it would have to be CF8 on Solaris > since that's all that is supported currently. macromedia.com / adobe.com has been running ColdFusion with heap sizes > 2Gb on Solaris for years - this is not about 32-bit vs 64-bit but rather how the O/S & chipset address memory. 32-bit non-Windows systems are perfectly capable of addressing 4Gb and therefore can run CF with a heap in the 3Gb range. Now there's a question as to whether you really want to use such a large heap: it means longer GC cycles and "lumpier" performance. In many ways, you're better off with the smallest heap that can handle your peak load since that will give you much better GC performance... -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ "If you're not annoying somebody, you're not really alive." -- Margaret Atwood ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Get the answers you are looking for on the ColdFusion Labs Forum direct from active programmers and developers. http://www.adobe.com/cfusion/webforums/forum/categories.cfm?forumid-72&catid=648 Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:285630 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
