From: Derrick Stolee <stolee@gmail.com>
Date: Mon, 12 Nov 2018 16:02:44 GMT
Subject: Re: [PATCH 0/9] caching loose objects
Message-ID: <7f0dd0f6-ea74-9e8a-5bf9-936529d665cf@gmail.com>
In-Reply-To: <20181112144627.GA2478@sigill.intra.peff.net>

On 11/12/2018 9:46 AM, Jeff King wrote:
> Here's the series I mentioned earlier in the thread to cache loose
> objects when answering has_object_file(..., OBJECT_INFO_QUICK). For
> those just joining us, this makes operations that look up a lot of
> missing objects (like "index-pack" looking for collisions) faster. This
> is mostly targeted at systems where stat() is slow, like over NFS, but
> it seems to give a 2% speedup indexing a full git.git packfile into an
> empty repository (i.e., what you'd see on a clone).
>
> I'm adding René Scharfe and Takuto Ikuta to the cc for their previous
> work in loose-object caching.
>
> The interesting bit is patch 8. The rest of it is cleanup to let us
> treat alternates and the main object directory similarly.

This cleanup is actually really valuable, and affects much more than 
this application.

I really think it is a good idea, and hope it doesn't cause too much 
trouble as the topic is cooking.

Thanks,
-Stolee