On Fri, Jul 21, 2006 at 11:39:23PM -0400, [EMAIL PROTECTED] wrote: > it would be incredibly useful if the HPC community could come up with > some actual numbers on how important bigpages are. I'm ashamed to say > that I haven't made any effort to measure this on any of my clusters. > oprofile appears to make it pretty easy to capture real data on how > often TLB's are a problem.
Actually it's not hard to measure the benefit -- take an OS like Solaris and use Sun's SpecOMP runs with and without huge pages... also spec_rate... insomuch as you ever see their SunStudio compilers beating ours, huge pages are involved. But I've never seen a study break out the benefits separately, they're always Linux & small pages & compiler A vs. not Linux & large pages & compiler B... -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
