On Fri, 2007-11-30 at 09:44 -0500, Jim Pingle wrote: > This may be a silly question, but have you tried reducing the RAM on the > quad core machine to 4GB so the machines match in that respect as well? > > I seem to recall a thread a while back about someone who had slowdowns in a > certain situation with large amounts of RAM (>4GB).
This was with the Intel 965 chipset, and was fixed with a BIOS upgrade, something to do with the way the BIOS set cache info up about memory above 4Gb. A BIOS upgrade may be worth trying. Removing memory from the slow one toleave it with 4Gb may be a useful datapoint. Note that I don't think you can just set hw.maxmem as that makes no guarantee as to *whicch* physical 4Gb will get used. Finally, I assume you are using FreeBSD amd64 and not i386 in PAE mode? Posting dmesg outputs from both systems somewhere might be useful, I can't see it in the previous posts. Gavin _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
