If you can upgrade to AS 4.0 would be the best. Other wise you can use hugemem kernel. as suggested by Tobias Speckbacher Nilesh On 12/1/05, Tobias Speckbacher <TSpeckbacher@xxxxxxxxx> wrote: > > > -----Original Message----- > > From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list- > > bounces@xxxxxxxxxx] On Behalf Of Mindy Preston > > Sent: Wednesday, November 30, 2005 10:02 AM > > To: General Red Hat Linux discussion list > > Subject: Re: physical memory > > > > Brian, > > > > Are you running a 64-bit version of Red Hat? If you're running a > 32-bit > > one you will be limited to 4GB of memory, since more can't be > addressed > > by 2^32. > > The hugemem kernel supports up to 64GB of memory for 32 bit AS3 systems. > There is some performance impact to using memory sizes over 4GB on 32bit > systems, from what I read 2-3%. > > The limiting factor is the maximum memory allocation per user process, > which can not be larger than 4GB, the same goes for kernel address > space. > > For reference please check: > > http://www.in.redhat.com/software/rhel/3features/ > > > > > -Mindy > > > > -- > > redhat-list mailing list > > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > > https://www.redhat.com/mailman/listinfo/redhat-list > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list