>>> On 17.09.12 at 19:05, "H. Peter Anvin" <h...@zytor.com> wrote: > Honestly, I don't see a reason to not do this unconditionally. On > anything but (pre-686-era) extremely old CPUs the cost of the extra > prefix is zero. On the really old CPUs the cost of the BSF instruction > will dwarf the penalty cycle for the extra prefix, so the whole > mechanism around doing it conditionally seems pointless.
I certainly don't mind re-submitting with the whole thing made unconditional (implying that the prior version would be dropped in any case). Jan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
