From mboxrd@z Thu Jan 1 00:00:00 1970 From: "brian m. carlson" Subject: Re: Git Scaling: What factors most affect Git performance for a large repo? Date: Fri, 20 Feb 2015 22:58:27 +0000 Message-ID: <20150220225827.GA23852@vauxhall.crustytoothpaste.net> References: <20150220000320.GD5021@vauxhall.crustytoothpaste.net> <54E7B077.3050501@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Q68bSM7Ycu6FN28Q" Cc: Stephen Morton , git@vger.kernel.org To: Sebastian Schuberth X-From: git-owner@vger.kernel.org Fri Feb 20 23:58:40 2015 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YOwWt-0001eT-HT for gcvg-git-2@plane.gmane.org; Fri, 20 Feb 2015 23:58:39 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754600AbbBTW6f (ORCPT ); Fri, 20 Feb 2015 17:58:35 -0500 Received: from castro.crustytoothpaste.net ([173.11.243.49]:49154 "EHLO castro.crustytoothpaste.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752484AbbBTW6e (ORCPT ); Fri, 20 Feb 2015 17:58:34 -0500 Received: from vauxhall.crustytoothpaste.net (unknown [IPv6:2001:470:1f05:79:c808:e39c:abee:cc11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by castro.crustytoothpaste.net (Postfix) with ESMTPSA id AEAC02808F; Fri, 20 Feb 2015 22:58:31 +0000 (UTC) Mail-Followup-To: "brian m. carlson" , Sebastian Schuberth , Stephen Morton , git@vger.kernel.org Content-Disposition: inline In-Reply-To: <54E7B077.3050501@gmail.com> X-Machine: Running on vauxhall using GNU/Linux on x86_64 (Linux kernel 3.19.0-trunk-amd64) User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -0.272 BAYES_00,RDNS_NONE Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: --Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 20, 2015 at 11:08:55PM +0100, Sebastian Schuberth wrote: >On 20.02.2015 01:03, brian m. carlson wrote: > >>If you want good performance, I'd recommend the latest version of Git >>both client- and server-side. Newer versions of Git provide pack >>bitmaps, which can dramatically speed up clones and fetches, and Git > >Do you happen now which version, if at all, of JGit and Gerrit support=20 >pack bitmaps? They were originally implemented in JGit, but I don't know what version,=20 sorry. Some googling tells me that it's probably version 3.0. >>2.3.0 fixes a performance regression with large numbers of refs in >>non-shallow repositories. > >Do you also know in what Git version the regression was introduced? v1.8.4-rc3-8-gfbd4a70. It was fixed in v2.2.1-65-g2dacf26. --=20 brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187 --Q68bSM7Ycu6FN28Q Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJU57wTAAoJEL9TXYEfUvaLCnAQAKCJjzWOcYODe+jFmdCwXzMG 1njVU83uRy/73kbff+YTt80bFHxDRp7q55fsGK9vj5AWTdPgIzkaXzr+sjfdCWa1 xq4a2Uu34AWCDfho1SXSibC25PcajavDwdUC63A1q6+YtnmbMkLztlBcFVr4D8lu /gu3WHHjM3uddj2/M3dkNMyomdmCqgq79UUA8JL1MWf5YwXUfcQraSJm5pkVT+BI MUBAd6BE+Kapg2EfuJt+r+y8++p0vit/lc0ms028oKrsiAl8ASHGwgkjfmP22t0q +Z31dVe9BahcXo3KLxmRe76JufJ0Uhm6iyu0IIpxZ6gqmWQPzs/N/WbtpnK3p0b9 WqDXccyMHWmyciVV4G/cbTubI/u+3jlpdjrDIEwVfnwK7N6XxNB9poSsCZ9DhU56 cFij2hQH55AZhqC1bMn0h1mx9IFePmmOndLC9goNro6PDOONABpBb02eWIHzld2/ HsuETQ5cOwHDhy/yD3PtCKRo/cy3Ce6VmiA9SfN7X0bfWGVjD+GhzEY8TnGXf0Ss b96f2Ufwfub4eE0oPpdldHFgefawrSaS+v6DtO3bFNt99hgNIHZ3ZH2ZKytDUjdH bh6PLNQp1Rjsp0V7iT75aIG/pRvUnPyqn6RjJuGjx2plRT0+/7Y0K1KH8aop7EBL sCyLYBjyIx0ONa9mRBle =yMRW -----END PGP SIGNATURE----- --Q68bSM7Ycu6FN28Q--