From patchwork Wed Feb 3 15:34:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Blain via GitGitGadget X-Patchwork-Id: 12064653 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EAEA9C433E0 for ; Wed, 3 Feb 2021 15:54:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0CAF64F93 for ; Wed, 3 Feb 2021 15:54:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234485AbhBCPyw (ORCPT ); Wed, 3 Feb 2021 10:54:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233585AbhBCPfg (ORCPT ); Wed, 3 Feb 2021 10:35:36 -0500 Received: from mail-wm1-x332.google.com (mail-wm1-x332.google.com [IPv6:2a00:1450:4864:20::332]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55BAFC061788 for ; Wed, 3 Feb 2021 07:34:53 -0800 (PST) Received: by mail-wm1-x332.google.com with SMTP id f16so37802wmq.5 for ; Wed, 03 Feb 2021 07:34:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=y0uDEyR14HxwPOKcctVpZM3ozMX0T1PFIs+TId3VyUE=; b=fRv03Wn90dnBibEOi4butTaeapSX5pUEkMnttAunVLZcdJnhlHA0BY74XIipL9Gy1K wdLQEtVHDhp09965CbehVQXibbZGHxESN96pTHSOKek4rWsOn/s1ESbO+oKwqKiw2zPR wOCRLSiOJl9aKylCAk7ezJL3wAgIJ0r4QoZE74fXlDp0rMmFK/wPuyHe/rzPrIpnaz2i TDTR+xNnTJgZjv28Wm50Zbps6FnoQ6giDnQJGp7z3IIvUZcTcbXCskV+PMpfaG3S2/s/ NkCrjeq7mepzIzll5YrsB91BF4zcQR9LUdXjT9tGBU0og6yK5Gye5wvLXeKpfVxsd0CF VCtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=y0uDEyR14HxwPOKcctVpZM3ozMX0T1PFIs+TId3VyUE=; b=HUf/mW/5koWh8K/EWgm4nKcYMwFauyIZ5EVahJKFpIzFa/68z+UUNpE/vdtgiolkzf Bu4OmZzhzr7uhIhbXdu7oyzQkMcTC9CgS8khoWC2aQhvNCWK6zC6oLcz2G0F3kH+9Nh+ bC48EXsPsg9npkRHMsJLxHSh56Lw4oNBNkxmhXdUN4KmXDhZUO97wsG/JlKg4YLArhhX wJO7wbjfPsj66pdicBeUcLP18W5Lo+HbhRN9FmTMhy3oThpUsvPCpKc0J1qEAeDeqXHS jNooOplIpiSOyzoRD0cn6IEnAEzZwdBco6RiPHxByv91D6xOJTUIhJfZVWM8W6z3JQEH nLaw== X-Gm-Message-State: AOAM532jHE9Kj2Djit4oj//UXWkLV24pzHlnOTN9ecfPKqNa7sAPBBmf pkLM5SlRPikKLiQP3f30jFl/m6AhCHo= X-Google-Smtp-Source: ABdhPJwrtvjlKmNxt6MbMHVjOcnduSmq5+6foR84yifAvBdagiifssVzlojKgaZYFc6qjMd13qGyNA== X-Received: by 2002:a7b:c842:: with SMTP id c2mr3358006wml.100.1612366491829; Wed, 03 Feb 2021 07:34:51 -0800 (PST) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id l2sm3129938wmf.15.2021.02.03.07.34.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Feb 2021 07:34:51 -0800 (PST) Message-Id: In-Reply-To: References: From: "Jeff Hostetler via GitGitGadget" Date: Wed, 03 Feb 2021 15:34:39 +0000 Subject: [PATCH v2 00/11] FSMonitor Preliminary Commits Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Jeff Hostetler Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Here is version 2 of this series. In version 1, I replaced the non-portable "xargs -d" with "xargs -0", but it turns out that that too is not universally available. In this version I replace the need for either one by filtering out the problematic paths (such as ones with LFs) and quoting paths to handle whitespace. The resulting paths can be passed to xargs without any arguments. Also, I updated the test to use test-tool chmtime rather than touch to ensure that the files actually look dirty on low-resolution file systems. Jeff Hostetler (10): p7519: do not rely on "xargs -d" in test p7519: fix watchman watch-list test on Windows p7519: move watchman cleanup earlier in the test p7519: add trace logging during perf test preload-index: log the number of lstat calls to trace2 read-cache: log the number of lstat calls to trace2 read-cache: log the number of scanned files to trace2 fsmonitor: log invocation of FSMonitor hook to trace2 fsmonitor: log FSMN token when reading and writing the index fsmonitor: refactor initialization of fsmonitor_last_update token Kevin Willford (1): fsmonitor: allow all entries for a folder to be invalidated fsmonitor.c | 107 ++++++++++++++++++++++++++++++++++---- fsmonitor.h | 5 ++ preload-index.c | 10 ++++ read-cache.c | 24 +++++++-- t/perf/.gitignore | 1 + t/perf/Makefile | 4 +- t/perf/p7519-fsmonitor.sh | 71 +++++++++++++++++++++---- 7 files changed, 196 insertions(+), 26 deletions(-) base-commit: 71ca53e8125e36efbda17293c50027d31681a41f Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-860%2Fjeffhostetler%2Ffsmonitor-prework-v2 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-860/jeffhostetler/fsmonitor-prework-v2 Pull-Request: https://github.com/gitgitgadget/git/pull/860 Range-diff vs v1: 1: cf252e24b8c ! 1: e570f7316cc p7519: use xargs -0 rather than -d in test @@ Metadata Author: Jeff Hostetler ## Commit message ## - p7519: use xargs -0 rather than -d in test + p7519: do not rely on "xargs -d" in test - The Mac version of xargs does not support the "-d" option. Convert the test - setup to pipe the data set thru `lf_to_nul | xargs -0` instead. + Convert the test to use a more portable method to update the mtime on a + large number of files under version control. + + The Mac version of xargs does not support the "-d" option. + Likewise, the "-0" and "--null" options are not portable. + + Furthermore, use `test-tool chmtime` rather than `touch` to update the + mtime to ensure that it is actually updated (especially on file systems + with only whole second resolution). Signed-off-by: Jeff Hostetler ## t/perf/p7519-fsmonitor.sh ## @@ t/perf/p7519-fsmonitor.sh: test_fsmonitor_suite() { + git status -uall ' ++ # Update the mtimes on upto 100k files to make status think ++ # that they are dirty. For simplicity, omit any files with ++ # LFs (i.e. anything that ls-files thinks it needs to dquote). ++ # Then fully backslash-quote the paths to capture any ++ # whitespace so that they pass thru xargs properly. ++ # test_perf_w_drop_caches "status (dirty) ($DESC)" ' - git ls-files | head -100000 | xargs -d "\n" touch -h && -+ git ls-files | head -100000 | lf_to_nul | xargs -0 touch -h && ++ git ls-files | \ ++ head -100000 | \ ++ grep -v \" | \ ++ sed '\''s/\(.\)/\\\1/g'\'' | \ ++ xargs test-tool chmtime -300 && git status ' 2: a641f9e357c = 2: 3042fc92fe6 p7519: fix watchman watch-list test on Windows 3: 2af6858716f = 3: 9ceba5e6942 p7519: move watchman cleanup earlier in the test 4: 8de9985a706 = 4: f6ea0a51f50 p7519: add trace logging during perf test 5: cdd49f1fdb1 = 5: 3c5035e4649 preload-index: log the number of lstat calls to trace2 6: 65488f7a1bf = 6: d150a2d4576 read-cache: log the number of lstat calls to trace2 7: c84531f6244 = 7: 33cc0b838fa read-cache: log the number of scanned files to trace2 8: ef64b60c7a0 = 8: c043bccc8af fsmonitor: log invocation of FSMonitor hook to trace2 9: edb88ffe39e = 9: 6ec4a4468f6 fsmonitor: log FSMN token when reading and writing the index 10: 384d2eff863 = 10: 2ac66f07a59 fsmonitor: allow all entries for a folder to be invalidated 11: 4686196bbc6 = 11: 5410d3ab61d fsmonitor: refactor initialization of fsmonitor_last_update token