From: Jeff King <peff@peff.net>
Date: Tue, 25 Aug 2015 19:03:30 GMT
Subject: Re: [PATCH 4/5] index-pack: Use the new worker pool
Message-ID: <20150825190329.GA11271@sigill.intra.peff.net>
In-Reply-To: <1440523706-23041-5-git-send-email-sbeller@google.com>

On Tue, Aug 25, 2015 at 10:28:25AM -0700, Stefan Beller wrote:

> By treating each object as its own task the workflow is easier to follow
> as the function used in the worker threads doesn't need any control logic
> any more.

Have you tried running t/perf/p5302 on this?

I seem to get a pretty consistent 2%-ish slowdown, both against git.git
and linux.git. That's not a lot, but I'm wondering if there is some
low-hanging fruit in the locking, or in the pattern of work being
dispatched. Or it may just be noise, but it seems fairly consistent.

-Peff