Messages in this thread | | | Date | Thu, 10 Mar 2016 10:17:16 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH -tip 0/2] kernel/smp: Small csd_lock optimizations |
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On Wed, Mar 09, 2016 at 05:55:34PM -0800, Davidlohr Bueso wrote: > From: Davidlohr Bueso <dave@stgolabs.net> > > Hi, > > Justifications are in each patch, there is slight impact (patch 2) > on some tlb flushing intensive benchmarks (albeit using ipi batching > nowadays). Specifically for the pft > benchmark, on a 12-core box:
> 4.4 4.4 > vanilla smp > User 11.91 11.85 > System 197.11 194.69 > Elapsed 44.24 40.26 > > While the single thread is an abnormality, overall we don't seem > to do any harm (noise range). Could be give or take, but overall > the patches at least make some sense afaict.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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