Messages in this thread | | | Subject | Re: [PATCH RFC 0/7] x86: convert ticketlocks to C and remove duplicate code | From | "H. Peter Anvin" <> | Date | Fri, 24 Jun 2011 20:15:42 -0700 |
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Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>On 06/24/2011 02:50 PM, H. Peter Anvin wrote: >> On 06/23/2011 06:19 PM, Jeremy Fitzhardinge wrote: >>> I've been running with this code in place for several months on 4 >core >>> systems without any problems. >>> >>> I couldn't measure a consistent performance difference between the >two >>> implemenations; there seemed to be +/- ~1% +/-, which is the level >of >>> variation I see from simply recompiling the kernel with slightly >>> different code alignment. >>> >>> Overall, I think the large reduction in code size is a big win. >>> >> Could you give us the delta in *compiled* code size? > >Sure. Do you mean for the individual lock sequences, or for the >overall >kernel? > > J
Overall is fine. -- Sent from my mobile phone. Please excuse my brevity and lack of formatting.
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