Maybe a dedicated SIMD version of SHA1? http://arctic.org/~dean/crypto/sha1.html http://arctic.org/%7Edean/crypto/sha1.html Cheers, Peter 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.