From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.176.0/21 X-Spam-Status: No, score=-3.5 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MSGID_FROM_MTA_HEADER,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 From: Junio C Hamano Subject: Re: [WISH] Store also tag dereferences in packed-refs Date: Sat, 18 Nov 2006 17:45:08 -0800 Message-ID: <7vac2o9pln.fsf@assigned-by-dhcp.cox.net> References: <7vmz6oeh2k.fsf@assigned-by-dhcp.cox.net> <20061118184345.GO7201@pasky.or.cz> <7vac2oefuz.fsf@assigned-by-dhcp.cox.net> <7vfycg9pu5.fsf@assigned-by-dhcp.cox.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii NNTP-Posting-Date: Sun, 19 Nov 2006 01:45:59 +0000 (UTC) Cc: git@vger.kernel.org Return-path: Envelope-to: gcvg-git@gmane.org In-Reply-To: <7vfycg9pu5.fsf@assigned-by-dhcp.cox.net> (Junio C. Hamano's message of "Sat, 18 Nov 2006 17:40:02 -0800") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: Received: from vger.kernel.org ([209.132.176.167]) by ciao.gmane.org with esmtp (Exim 4.43) id 1GlbkE-0000o0-Px for gcvg-git@gmane.org; Sun, 19 Nov 2006 02:45:20 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755485AbWKSBpL (ORCPT ); Sat, 18 Nov 2006 20:45:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755486AbWKSBpL (ORCPT ); Sat, 18 Nov 2006 20:45:11 -0500 Received: from fed1rmmtao06.cox.net ([68.230.241.33]:59544 "EHLO fed1rmmtao06.cox.net") by vger.kernel.org with ESMTP id S1755485AbWKSBpK (ORCPT ); Sat, 18 Nov 2006 20:45:10 -0500 Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao06.cox.net (InterMail vM.6.01.06.03 201-2131-130-104-20060516) with ESMTP id <20061119014509.LCAY5465.fed1rmmtao06.cox.net@fed1rmimpo01.cox.net>; Sat, 18 Nov 2006 20:45:09 -0500 Received: from assigned-by-dhcp.cox.net ([68.5.247.80]) by fed1rmimpo01.cox.net with bizsmtp id oRkh1V0071kojtg0000000; Sat, 18 Nov 2006 20:44:41 -0500 To: Linus Torvalds Sender: git-owner@vger.kernel.org Junio C Hamano writes: > Linus Torvalds writes: > >> On Sun, 19 Nov 2006, Marco Costalba wrote: >>> >>> Tested also with show-ref only, not useful to me, but just as a comparison. >>> >>> - git tree 1420ms >>> - linux tree 1021ms >>> >>> Better, but still slower then what I would expected. >> >> MUCH slower than expected. There is something seriously wrong about Marco's number with or without my patch. I am getting something like this from linux-2.6 with fully packed and pruned refs; $ /usr/bin/time git-show-ref -d >/dev/null 0.08user 0.00system 0:00.08elapsed 97%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+3314minor)pagefaults 0swaps $ /usr/bin/time ../git.junio/git-show-ref -d >/dev/null 0.05user 0.01system 0:00.06elapsed 98%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2724minor)pagefaults 0swaps The second one is with the patch, the first one is from yesterday's master.