Messages in this thread | | | Subject | Re: [RFC][PATCH] Faster generic_fls | From | Falk Hueffner <> | Date | 30 Apr 2003 18:03:14 +0200 |
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Linus Torvalds <torvalds@transmeta.com> writes:
> There is _never_ any excuse to use a lookup table for something that > can be calculated with a few simple instructions. That's just > stupid.
Well, the "few simple instructions" are 28 instructions on Alpha for example, including 6 data-dependent branches. So I don't think it's *that* stupid.
But I agree that benchmarking this stand-alone isn't particularly useful.
-- Falk - 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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