From: Jeff King <peff@peff.net>
Date: Sat, 08 Aug 2009 02:50:55 GMT
Subject: Re: [PATCH 0/5] Suggested for PU: revision caching system to significantly speed up packing/walking
Message-ID: <20090808025055.GA14731@coredump.intra.peff.net>
In-Reply-To: <7vzlabp7e4.fsf@alter.siamese.dyndns.org>

On Fri, Aug 07, 2009 at 03:48:51PM -0700, Junio C Hamano wrote:

> > The cache file for all of the linux repository (as of a few weeks ago)
> > is around 42MB, without names.  The names would probably add 2 or 3 MB
> > on top of that.  That's probably about as big as I'd want to get,
> 
> Hmm.  .git/objects/ as of today is about 482M here, so we are talking
> about roughly 10% overhead?

IIRC from previous discussions, kernel.org's main performance problem is
I/O, not CPU. Are there any provisions for sharing rev-caches between
similar repositories, as we already do for objects?

-Peff