Messages in this thread | | | Date | Thu, 13 Aug 2009 19:08:18 +0200 | From | Heiko Carstens <> | Subject | Re: inlined spinlocks on sparc64 |
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On Thu, Aug 13, 2009 at 10:20:58AM +0200, Jens Axboe wrote: > Hi, > > I deleted the original thread, so I can't reply there. Just a heads up > on the spinlock inlining on sparc64. I decided to give your patches a > shot, since one of my IO benchmarks here basically degenerates into a > spinlock microbenchmark with > 50% time spent there (unlock part, > according to perf). Some of that is surely caching effects, but still. > > For this particular workload, I get a net improvement of about 3.5% with > the inlined functions. Not bad.
That sounds good! Btw. Andrew added the patches to his -mm tree, so it looks like the patches will be merged during the next merge window.
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