On Wed, Jan 21, 2009 at 04:24:13PM -0500, Mark Hahn wrote: > but I would have guessed search stuff to be > disk or memory-dominated. (both of which have certainly improved over > the past few years, but much more gradually, no?)
No, we're cpu bound most of the time. We do run the disks hard, but the bottleneck is cpu. > ah! so it appears that disks have improved their active and idle power > figures by a factor of ~2 over the past year or so, after having remained > fairly steady before that. is that right? I'm only talking about what > I think of as the mass market: 3.5" sata. or do you use 2.5" laptopy disks? > still only ~10W/disk - I would expect MTBF/AFR/warranty-based considerations > would more drive your replacement cycle... Laptop drives are mass market to me, but we don't use them -- we're too concerned about disk bandwidth... we've got all 3.5" SATA. -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
