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 [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
