From: Wincent Colaiuta Date: Fri, 07 Sep 2007 12:33:42 GMT Subject: Re: [RFC] Convert builin-mailinfo.c to use The Better String Library. Message-ID: In-Reply-To: <46E13C0F.8040203@op5.se> El 7/9/2007, a las 13:54, Andreas Ericsson escribió: > Johannes Schindelin wrote: >> Hi, >> On Fri, 7 Sep 2007, Andreas Ericsson wrote: >>> Wincent Colaiuta wrote: >>>> El 7/9/2007, a las 2:21, Dmitry Kakurin escribi?: >>>> >>>>> I just wanted to get a sense of how many people share this "Git >>>>> should >>>>> be in pure C" doctrine. >>>> Count me as one of them. Git is all about speed, and C is the >>>> best choice >>>> for speed, especially in context of Git's workload. >>>> >>> Nono, hand-optimized assembly is the best choice for speed. C is >>> just >>> a little more portable ;-) >> I have a buck here that says that you cannot hand-optimise >> assembly (on modern processors at least) as good as even gcc. > > > http://www.gelato.unsw.edu.au/archives/git/0504/1746.html > > I win. Donate $1 to FSF next time you get the opportunity ;-) Well, you picked a very specific algorithm amenable to that kind of optimization: small, manageable, with a minimal and well-defined performance critical section that could be written in assembly. Note how a good chunk of the implementation was still in C. At most I'd give you 75 cents for that one. ;-) Wincent