On Thu, 22 Mar 2007, Andrew Morton wrote: > On Thu, 22 Mar 2007 23:28:41 -0700 (PDT) Christoph Lameter <[EMAIL > PROTECTED]> wrote: > > > 1. Proven code from the IA64 arch. > > > > The method used here has been fine tuned for years and > > is NUMA aware. It is based on the knowledge that accesses > > to page table pages are sparse in nature. Taking a page > > off the freelists instead of allocating a zeroed pages > > allows a reduction of number of cachelines touched > > in addition to getting rid of the slab overhead. So > > performance improves. > > By how much?
About 40% on fork+exit. See http://marc.info/?l=linux-ia64&m=110942798406005&w=2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
