Messages in this thread | | | From | Nick Piggin <> | Subject | Re: [PATCH] SLUB: revert direct page allocator pass through | Date | Sat, 24 Jan 2009 02:54:00 +1100 |
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On Saturday 24 January 2009 02:44:28 Pekka Enberg wrote: > On Sat, 2009-01-24 at 02:37 +1100, Nick Piggin wrote: > > However, I don't know if netperf udp 4K over loopback is totally > > realistic. Maybe real network drivers have different allocation patterns. > > If I were you I wouldn't be too hasty to make big changes based on that > > alone, if it could introduce regression in somewhere more important. > > Yup, I'm putting it in linux-next to see if anything pops up. It's of > course possible that it will introduce regression somewhere but seeing > the hit SLUB is taking from the page allocator, I'm bound to think that > performance increase claims of commit > aadb4bc4a1f9108c1d0fbd121827c936c2ed4217 ("SLUB: direct pass through of > page size or higher kmalloc requests") don't hold anymore.
Well what workload were they relating to? That could easily be retested.
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