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Re: Git and GCC
- From: Johannes Schindelin <Johannes dot Schindelin at gmx dot de>
- To: "J.C. Pizarro" <jcpiza at gmail dot com>
- Cc: Linus Torvalds <torvalds at linux-foundation dot org>, David Miller <davem at davemloft dot net>, gcc at gcc dot gnu dot org, git at vger dot kernel dot org
- Date: Sat, 8 Dec 2007 12:24:00 +0000 (GMT)
- Subject: Re: Git and GCC
- References: <998d0e4a0712071821o520a75c4lbcaae92256071f48@mail.gmail.com>
Hi,
On Sat, 8 Dec 2007, J.C. Pizarro wrote:
> On 2007/12/07, "Linus Torvalds" <torvalds@linux-foundation.org> wrote:
>
> > SHA1 is almost totally insignificant on x86. It hardly shows up. But
> > we have a good optimized version there.
>
> If SHA1 is slow then why dont he contribute adding Haval160 (3 rounds)
> that it's faster than SHA1? And to optimize still more it with SIMD
> instructions in kernelspace and userland.
He said SHA-1 is insignificant.
> > zlib tends to be a lot more noticeable (especially the uncompression:
> > it may be faster than compression, but it's done _so_ much more that
> > it totally dominates).
>
> It's better
>
> 1. "Don't compress this repo but compact this uncompressed repo
> using minimal spanning forest and deltas"
> 2. "After, compress this whole repo with LZMA (e.g. 48MiB) from 7zip before
> burning it to DVD for backup reasons or before replicating it to
> internet".
Patches? ;-)
Ciao,
Dscho