Re: [PATCH][2.6] Completely out of line spinlocks / i386

From: Pavel Machek
Date: Wed Aug 11 2004 - 17:05:27 EST


Hi!

> Pulled from the -tiny tree, the focus of this patch is for reduced kernel
> image size but in the process we benefit from improved cache performance
> since it's possible for the common text to be present in cache. This is
> probably more of a win on shared cache multiprocessor systems like
> P4/Xeon HT. It's been benchmarked with bonnie++ on 2x and 4x PIII (my
> ideal target would be a 4x+ logical cpu Xeon).
>
> The bonnie++ results are here, the hostnames are of the form stpN-000 with
> N denoting how many processors in the system. In a nutshell there doesn't
> appear to be any performance regressions.

Fine, so perhaps we do not want config option?
Pavel

--
People were complaining that M$ turns users into beta-testers...
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