From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261243AbVDGFjs (ORCPT ); Thu, 7 Apr 2005 01:39:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261328AbVDGFjs (ORCPT ); Thu, 7 Apr 2005 01:39:48 -0400 Received: from 57.16.168.202.velocitynet.com.au ([202.168.16.57]:19329 "EHLO hope.sourcefrog.net") by vger.kernel.org with ESMTP id S261243AbVDGFjg (ORCPT ); Thu, 7 Apr 2005 01:39:36 -0400 Subject: Re: Kernel SCM saga.. From: Martin Pool To: "linux-kernel@vger.kernel.org" , David Lang In-Reply-To: References: <20050406193911.GA11659@stingr.stingr.net> <20050407014727.GA17970@havoc.gtf.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-PQJvh9r/3NQo6+OKiMMK" Date: Thu, 07 Apr 2005 15:38:21 +1000 Message-Id: <1112852302.29544.75.camel@hope> Mime-Version: 1.0 X-Mailer: Evolution 2.2.1.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-PQJvh9r/3NQo6+OKiMMK Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2005-04-06 at 19:32 -0700, David Lang wrote: > On Thu, 7 Apr 2005, Martin Pool wrote: >=20 > > I haven't tested importing all 60,000+ changesets of the current bk tre= e, > > partly because I don't *have* all those changesets. (Larry said > > previously that someone (not me) tried to pull all of them using bkclie= nt, > > and he considered this abuse and blacklisted them.) >=20 > pull the patches from the BK2CVS server. yes some patches are combined,=20 > but it will get you in the ballpark. OK, I just tried that. I know there are scripts to resynthesize changesets from the CVS info but I skipped that for now and just pulled each day's work into a separate bzr revision. It's up to the end of March and still running. Importing the first snapshot (2004-01-01) took 41.77s user, 1:23.79 total. Each subsequent day takes about 10s user, 30s elapsed to commit into bzr. The speeds are comparable to CVS or a bit faster, and may be faster than other distributed systems. (This on a laptop with a 5400rpm disk.) Pulling out a complete copy of the tree as it was on a previous date takes about 14 user, 60s elapsed. I don't want to get too distracted by benchmarks now because there are more urgent things to do and anyhow there is still lots of scope for optimization. I wouldn't be at all surprised if those times could be more than halved. I just wanted to show it is in (I hope) the right ballpark. --=20 Martin --=-PQJvh9r/3NQo6+OKiMMK Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQBCVMdNPGPKP6Cz6IsRAnclAKC0Se1IQUzGuSvUUlqTaimFrKWk2gCfT1+Y W5Tc3VDcHHDCdJ3SbYQhmvg= =Yw/C -----END PGP SIGNATURE----- --=-PQJvh9r/3NQo6+OKiMMK--