On Tue, 2014-06-17 at 12:02 +0300, Mihai Caraman wrote: > On vcpu schedule, the condition checked for tlb pollution is too loose. > The tlb entries of a vcpu become polluted (vs stale) only when a different > vcpu within the same logical partition runs in-between. Optimize the tlb > invalidation condition taking into account the logical partition id. > > With the new invalidation condition, a guest shows 4% performance improvement > on P5020DS while running a memory stress application with the cpu > oversubscribed, > the other guest running a cpu intensive workload.
See https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-June/118547.html -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
