[Haskell-cafe] Re: [darcs-devel] announcing darcs 2.0.0pre3

Peter Verswyvelen bf3 at telenet.be
Wed Jan 23 16:09:05 EST 2008

Maybe a dedicated SIMD version of SHA1?


David Roundy wrote:
> On Wed, Jan 23, 2008 at 03:26:51PM +0000, Simon Marlow wrote:
>> There are still times when I see nothing happening, for example in the 
>> unpull test on the GHC repo (see previous messages), the last progress 
>> message I get is
>> Reading patches in /64playpen/simonmar/ghc-darcs2 17040
>> and it sits there for 7-8 seconds before completing.  Does this maybe shed 
>> any light on why this unpull is 2 times slower than darcs1?
> I'm not entirely certain what's triggering this, but I have identified that
> removing a couple of sha1 checks cuts 1s out of 15s for me.  This makes me
> wonder whether it's worth looking into a faster sha1 implementation.

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