From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 28 Aug 2015 18:41:03 GMT
Subject: Re: [PATCH 7/9] fetch: fetch submodules in parallel
Message-ID: <xmqqlhcv1cjk.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <20150828183501.GA17222@sigill.intra.peff.net>

Jeff King <peff@peff.net> writes:

> I think Jonathan's point is that you could pick _one_ active child to
> show without buffering, while simultaneously buffering everybody else's
> output. When that finishes, pick a new active child, show its buffer,
> and then start showing its output in realtime. And so on.
>
> So to an observer, it would look like a serial operation, but subsequent
> operations after the first would magically go much faster (because
> they'd been working and buffering in the background).

OK, I can buy that explanation.

> And that doesn't require any additional IPC magic (though I am not sure
> how we get progress in the first place if the child stderr is a
> pipe...).

That is a good point ;-)