From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff King <peff@peff.net>
Subject: Re: [PATCH] fast-export: ensure we traverse commits in topological
	order
Date: Wed, 11 Feb 2009 12:37:17 -0500
Message-ID: <20090211173717.GA19749@coredump.intra.peff.net>
References: <1234332233-10017-1-git-send-email-newren@gmail.com> <1234332233-10017-2-git-send-email-newren@gmail.com> <alpine.DEB.1.00.0902111125410.10279@pacific.mpi-cbg.de> <e2b179460902110248m8055b3amdebcfc550438cff2@mail.gmail.com> <20090211135640.GA19600@coredump.intra.peff.net> <alpine.DEB.1.00.0902111618120.13279@intel-tinevez-2-302>
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Cc: Mike Ralphson <mike.ralphson@gmail.com>,
	Elijah Newren <newren@gmail.com>, git@vger.kernel.org
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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On Wed, Feb 11, 2009 at 04:18:28PM +0100, Johannes Schindelin wrote:

> >   $ time git fast-export --all --signed-tags=strip >/dev/null
> >   real    1m6.013s
> >   user    1m3.840s
> >   sys     0m2.140s
> 
> Or a warm against a cold cache?

Nope. See how the CPU is more or less pegged in the numbers above? Cold
cache looks like this:

  $ echo 3 >/proc/sys/vm/drop_caches
  $ time git fast-export --all --signed-tags=strip >/dev/null
  real    1m11.148s
  user    1m3.952s
  sys     0m0.760s

So only 7 extra seconds paging in. Hooray for packing. :)

-Peff