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Re: Questions on GSoC 2019 Ideas




On Tue, Mar 5, 2019 at 11:51 AM Jeff King <peff@xxxxxxxx> wrote:
> > processing power from multiple cores, but about _not_ blocking. I
> > think one example use case here is parallel checkout. While one thread
> > is blocked by pack access code for whatever reason, the others can
> > still continue doing other stuff (e.g. write the checked out file to
> > disk) or even access the pack again to check more things out.
>
> I'm not sure if it would help much for packs, because they're organized
> to have pretty good cold-cache read-ahead behavior. But who knows until
> we measure it.
>
> I do suspect that inflating (and delta reconstruction) done in parallel
> could be a win for git-grep, especially if you have a really simple
> regex that is quick to search.

Maybe git-blame too. But this is based purely on me watching CPU
utilization of one command with hot cache. For git-blame though, diff
code as to be thread safe too but that's another story.
-- 
Duy