From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.2 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id E0E4120966 for ; Fri, 7 Apr 2017 15:53:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756108AbdDGPxa (ORCPT ); Fri, 7 Apr 2017 11:53:30 -0400 Received: from siwi.pair.com ([209.68.5.199]:11136 "EHLO siwi.pair.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933728AbdDGPxT (ORCPT ); Fri, 7 Apr 2017 11:53:19 -0400 Received: from jeffhost-ubuntu.reddog.microsoft.com (unknown [65.55.188.213]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by siwi.pair.com (Postfix) with ESMTPSA id 2F58484668; Fri, 7 Apr 2017 11:53:18 -0400 (EDT) From: git@jeffhostetler.com To: git@vger.kernel.org Cc: gitster@pobox.com, peff@peff.net, Jeff Hostetler Subject: [PATCH v2] unpack-trees: avoid duplicate ODB lookups during checkout Date: Fri, 7 Apr 2017 15:53:05 +0000 Message-Id: <20170407155306.42375-1-git@jeffhostetler.com> X-Mailer: git-send-email 2.9.3 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jeff Hostetler Version 2 simplifies this and just copies the tree_descriptor data and borrows the underlying buffer without mallocing. It also handles the n=3 cases, so merges shold be helped too. I've updated the p0004 perf times in the commit message. The V2 changes took ~0.15 off the V1 times. The total reduction is ~1 second. ================ Avoid duplicate ODB lookups for trees during traverse_tree_recursive(). Jeff Hostetler (1): unpack-trees: avoid duplicate ODB lookups during checkout unpack-trees.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) -- 2.9.3