Messages in this thread | | | Date | Fri, 29 Jul 2011 10:24:45 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [GIT PULL] SLAB changes for v3.1-rc0 |
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On Thu, 28 Jul 2011, David Rientjes wrote:
> On Thu, 28 Jul 2011, Pekka Enberg wrote: > > > Christoph, your debugging fix has been in linux-next for few days now > > and no problem have been reported. I'm considering sending the series > > to Linus. What do you think? > > > > I ran slub/lockless through some stress testing and it seems to be quite > stable on my testing cluster. There is about a 2.3% performance > improvement with the lockless slowpath on the netperf benchmark with > various thread counts on my 16-core 64GB Opterons, so I'd recommend it to > be merged into 3.1.
Great. Could you also test the next stage of patches (not yet even in Pekka's tree) where we add a per cpu cache of partial allocated slab pages? This decreases the per node lock contention further. I can repost the set if the old one does not work for you. Shows significant improvement here as well.
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