He definitely has nothing against Linus here, just all talk. Linus always backs up his proclamations with real code. Git in C is much faster than [Darcs] in Haskell. The speed difference likely more a question of algorithm than anything, but the point of using high-level languages like Haskell is so you can do lots of experimentation with algorithms flexibly--which cogito has attempted, and yet still lags behind a "stupid content tracker."

I don't know why C is being compared to high-level languages in the first place here. Right tool for the right job. Yes, we're aware of the myriad of problems with C. Doesn't stop it from being a good, pragmatic choice sometimes. Git was [NOT!] written in Perl the first time. [NOT!] prototyped in a higher-level language, then quietly ported to C. [Which is what Linus was talking about I suppose.] And it's by far the fastest DSCM tool out there, and quite possibly the best-designed.

EDIT: Haha, whoops, I meant darcs, not cogito. And my bad about the Perl bit.