On Wed, Apr 24, 2013 at 10:30:14AM -0400, Lawrence Stewart wrote: > Does linux recombine physical memory into contiguous regions?
See: https://lwn.net/Articles/368869/ We find that it's awfully expensive when it's on with our search engine/nosql workload. In an HPC setting, you could explicitly trigger it between jobs. Worth experimenting to see if a drop caches helps or hurts when you do this -- less stuff to copy around. -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
