Luck, Tony wrote on Thursday, April 20, 2006 9:41 AM > On Thu, Apr 20, 2006 at 08:53:16AM -0500, Jack Steiner wrote: > > Enabling replication reserves 1 additional DTLB entry for kernel code. > > This reduces the number of DTLB entries that is available for user code. > > There is the potential that this could impact some applications. > > Additional measurements are still needed. > > Ken's recent patch to free up the DTLB that is currently used for per-cpu > data would mitigate this (though I'm sure he'll be unamused if I blow the > 1.6% gain he saw on his transaction processing benchmark on this :-) How much benefit is there to have readonly section replicated? Do you really have to use two DTRs - one to map the readonly and one to map rw? What about just replicate text so we don't need to burn an extra DTR? - Ken - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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