> -----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
