Messages in this thread | | | Date | Mon, 9 Jul 2007 14:21:33 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [patch 00/10] [RFC] SLUB patches for more functionality, performance and maintenance |
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On Mon, 9 Jul 2007, David Miller wrote:
> As Andi seemed to imply I don't even think cmpxchg is faster than > interrupt enable/disable on current generation AMD x86_64 chips, so > are you targetting this optimization solely at Intel x86 Core Duo > 32-bit chips? That's the only one I can see which will benefit from > this. Are you going to probe the cpu sub-type and patch SLUB?
Not sure. The numbers I have seen in the papers indicate a potential speedup by a factor of 10 on x86 hardware. I have not done any benchmarking myself yet.
> Please reconsider this change, thanks.
This is an RFC after all so nothing is fixed yet. Certainly I will keep this in mind. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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