From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS3215 2.6.0.0/16 X-Spam-Status: No, score=-3.5 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by dcvr.yhbt.net (Postfix) with ESMTP id 855991FC97 for ; Thu, 24 Mar 2022 04:59:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346491AbiCXFAW (ORCPT ); Thu, 24 Mar 2022 01:00:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343621AbiCXFAK (ORCPT ); Thu, 24 Mar 2022 01:00:10 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9115C2A715 for ; Wed, 23 Mar 2022 21:58:38 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id v130-20020a1cac88000000b00389d0a5c511so6512651wme.5 for ; Wed, 23 Mar 2022 21:58:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=5ebJFCI4F0cWCTTRJ8U340O4g9iVrZ+6k6F3XALLE/c=; b=jZPpODWadMEqA6kN+VmIWir2miYSpIScwNR2tDRUH1ZcAhR4s4LzCR7btq6sHpLBDr Qhl7ZmyCZZweZsQOTYXCg5S1orA+WrM8Ni9hngPWZYnKxwzHDBeXsxIOLbahqYAcqB5A /cixAlTuekhXPV44QgDWieCJGAtoukx4DbnwmDRiijGCCTxREG6+UGhH+S37ryCzrdLX IGGXsnHZtdx2Z7PWwcw1qCTJFSvXtGO8ErcCc+NvSd7aTmojQEu112ks7ftUT366OyY6 6FSCoLxUKSHz/HhCk+xPIEi3N27KaFThih5AhxLzvpRLnGJ9vWpP6dhf0oMnusfFUg8z iDjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=5ebJFCI4F0cWCTTRJ8U340O4g9iVrZ+6k6F3XALLE/c=; b=wCL5LkAk9xkpsNWnUaaBzJ64UXTf2SNNINkcCHhlUOdPZkbwawhuiaA8SCd011bQ0O dbb1L7qTebkGr7o8WHGIYakUY2aTMrcZmvDyNB4GJz/zcVuBQMkZXJOl9YRRsu/RX5Wu AIUTdAaLJQDO3h949s2rDjEr4GaRTNPEu0qJu2lw7KZF4oS9s49izZnUcTx2zjCn3Y9l 4tzlAmfMNQ6wFFDvxvpcH653VGl7ltoIc/rBUIDASACNvAW74wz6Wx7vsLfQ50SwhRQn 78TfUTMcz/QDs/qEJaQYClgU3YF03w7pCV5cgg5v2CPJk9ueoO8HioBfb9NN8iXeJeZy XQeQ== X-Gm-Message-State: AOAM533BwrAgCOHonoYL27ZMwV21STwo75YtRQarb/YlmbvLxXGhhyqE g4jdfBiVs5aayEZc4u6KfgzAQUybHxA= X-Google-Smtp-Source: ABdhPJy2QmpgfmNTeyPq4fAHN7koOu9cvWk9UWQFBHWtw08BIfdAMjj1bKEqX5+RgiUbzDMrCUJ4MA== X-Received: by 2002:a05:600c:4f15:b0:38c:b729:4838 with SMTP id l21-20020a05600c4f1500b0038cb7294838mr2986582wmq.132.1648097917083; Wed, 23 Mar 2022 21:58:37 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id c5-20020a5d63c5000000b002040822b680sm2300831wrw.81.2022.03.23.21.58.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Mar 2022 21:58:36 -0700 (PDT) Message-Id: <84fd144ef1889aaf4f88040a60cb8b156522e1b4.1648097906.git.gitgitgadget@gmail.com> In-Reply-To: References: From: "Neeraj Singh via GitGitGadget" Date: Thu, 24 Mar 2022 04:58:21 +0000 Subject: [PATCH v3 06/11] unpack-objects: use the bulk-checkin infrastructure Fcc: Sent Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 To: git@vger.kernel.org Cc: Johannes.Schindelin@gmx.de, avarab@gmail.com, nksingh85@gmail.com, ps@pks.im, Bagas Sanjaya , "Neeraj K. Singh" , Neeraj Singh Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Neeraj Singh The unpack-objects functionality is used by fetch, push, and fast-import to turn the transfered data into object database entries when there are fewer objects than the 'unpacklimit' setting. By enabling an odb-transaction when unpacking objects, we can take advantage of batched fsyncs. Here are some performance numbers to justify batch mode for unpack-objects, collected on a WSL2 Ubuntu VM. Fsync Mode | Time for 90 objects (ms) ------------------------------------- Off | 170 On,fsync | 760 On,batch | 230 Note that the default unpackLimit is 100 objects, so there's a 3x benefit in the worst case. The non-batch mode fsync scales linearly with the number of objects, so there are significant benefits even with smaller numbers of objects. Signed-off-by: Neeraj Singh --- builtin/unpack-objects.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index dbeb0680a58..56d05e2725d 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -1,5 +1,6 @@ #include "builtin.h" #include "cache.h" +#include "bulk-checkin.h" #include "config.h" #include "object-store.h" #include "object.h" @@ -503,10 +504,12 @@ static void unpack_all(void) if (!quiet) progress = start_progress(_("Unpacking objects"), nr_objects); CALLOC_ARRAY(obj_list, nr_objects); + begin_odb_transaction(); for (i = 0; i < nr_objects; i++) { unpack_one(i); display_progress(progress, i + 1); } + end_odb_transaction(); stop_progress(&progress); if (delta_list) -- gitgitgadget