From: Derrick Stolee <firstname.lastname@example.org> To: Derrick Stolee via GitGitGadget <email@example.com>, firstname.lastname@example.org Cc: Johannes.Schindelin@gmx.de, email@example.com, "Junio C Hamano" <firstname.lastname@example.org>, "Jakub Narębski" <email@example.com>, "Nguyễn Thái Ngọc Duy" <firstname.lastname@example.org>, "Carlo Marcelo Arenas Belón" <email@example.com>, "Ævar Arnfjörð Bjarmason" <firstname.lastname@example.org> Subject: Re: [PATCH v3 0/3] [RFC] Create 'core.featureAdoptionRate' setting to update config defaults Date: Mon, 8 Jul 2019 15:22:49 -0400 [thread overview] Message-ID: <email@example.com> (raw) In-Reply-To: <firstname.lastname@example.org> On 7/1/2019 10:29 AM, Derrick Stolee via GitGitGadget wrote: > Here is a second run at this RFC, which aims to create a "meta" config > setting that automatically turns on other settings according to a user's > willingness to trade new Git behavior or new feature risk for performance > benefits. The new name for the setting is "core.featureAdoptionRate" and is > an integer scale from 0 to 10. There will be multiple "categories" of > settings, and the intention is to allow more granular levels as necessary. (Adding people who contributed feedback to CC line.) It seems that this "Feature Adoption Rate" idea was too simplistic, and had several issues. Time to take a different stab at this direction, but with these clear goals in mind: 1. We want intermediate users to be able to take advantage of new config options without watching every release for new config options. 2. The config name should match the general effect of the implied settings. 3. There are orthogonal settings that may not apply beneficially to all repos. With this in mind, I propose instead a set of "feature.*" config settings that form groups of "community recommended" settings (with some caveats). In the space below, I'll list a set of possible feature names and the implied config options. First, the main two categories we've discussed so far: many commits and many files. These two feature sets are for when your repo is large in one of these dimensions. Perhaps there are other settings to include in these? feature.manyFiles: index.version = 4 index.threads = true core.untrackedCache = true feature.manyCommits: core.commitGraph = true gc.writeCommitGraph = true (future: fetch.writeSplitCommitGraph = true) Note: the `fetch.writeSplitCommitGraph` does not exist yet, but could be introduced in a later release to write a new commit-graph (with --split) on fetch. The other category that has been discussed already is that of "experimental features that we generally think are helpful but change behavior slightly in some cases". feature.experimental: pack.useSparse = true status.aheadBehind = false fetch.showForcedUpdates = false merge.directoryRenames = true protocol.version = 2 fetch.negotiationAlgorithm = skipping We have not discussed anything like the next category, but Dscho thought a set of configs to make pretty diffs could be a fun "meta-config" setting: feature.prettyDiff: diff.color = auto ui.color = auto diff.context = 5 diff.colorMoved = true diff.colorMovedWs = allow-indentation-change diff.algorithm = minimal These are just a first round of suggestions. I'm sure we would enjoy a debate around an optimal set of diff settings. Finally, here is a kind of feature that I could imagine being helpful in the future, but maybe is not a good idea to pursue right now. In some cases users use "gc.auto = 0" to prevent all user-time blocking maintenance. This can degrade performance over time as loose objects and pack-files accumulate. The performance could mostly be recovered by using a multi-pack-index, but there is not current way to automatically write the file. This would not solve the space issues that happen here. feature.noGC: gc.auto = 0 core.multiPackIndex = true (future: fetch.writeMultiPackIndex = true) What do people think about this general idea? Are there any other feature.* settings that could be useful? Any additional settings to add to these groups? Thanks, -Stolee
next prev parent reply other threads:[~2019-07-08 19:22 UTC|newest] Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-03 20:18 [PATCH 00/11] [RFC] Create 'core.size=large' " Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 01/11] repo-settings: create repo.size=large setting Derrick Stolee via GitGitGadget 2019-06-03 20:42 ` Jeff Hostetler 2019-06-03 20:18 ` [PATCH 03/11] repo-settings: pack.useSparse=true Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 02/11] repo-settings: use index.version=4 by default Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 04/11] status: add status.aheadbehind setting Jeff Hostetler via GitGitGadget 2019-06-03 20:18 ` [PATCH 05/11] status: add warning when a/b calculation takes too long for long/normal format Jeff Hostetler via GitGitGadget 2019-06-03 20:18 ` [PATCH 06/11] status: ignore status.aheadbehind in porcelain formats Jeff Hostetler via GitGitGadget 2019-06-03 20:18 ` [PATCH 07/11] repo-settings: status.aheadBehind=false Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 08/11] fetch: add --[no-]show-forced-updates argument Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 10/11] pull: add --[no-]show-forced-updates passthrough to fetch Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 09/11] fetch: warn about forced updates after branch list Derrick Stolee via GitGitGadget 2019-06-03 20:18 ` [PATCH 11/11] repo-settings: fetch.showForcedUpdates=false Derrick Stolee via GitGitGadget 2019-06-03 20:55 ` [PATCH 00/11] [RFC] Create 'core.size=large' setting to update config defaults Derrick Stolee 2019-06-04 14:43 ` Johannes Schindelin 2019-06-04 14:56 ` Derrick Stolee 2019-06-05 20:39 ` Junio C Hamano 2019-06-06 12:23 ` Derrick Stolee 2019-06-06 16:07 ` Junio C Hamano 2019-06-19 15:11 ` [PATCH v2 0/3] [RFC] Create 'core.featureAdoptionRate' " Derrick Stolee via GitGitGadget 2019-06-19 15:12 ` [PATCH v2 1/3] repo-settings: create core.featureAdoptionRate setting Derrick Stolee via GitGitGadget 2019-06-28 20:50 ` Junio C Hamano 2019-06-28 21:08 ` Derrick Stolee 2019-06-28 21:42 ` Junio C Hamano 2019-06-29 1:43 ` Derrick Stolee 2019-06-30 18:35 ` Carlo Arenas 2019-07-01 12:45 ` Derrick Stolee 2019-07-02 10:47 ` Ævar Arnfjörð Bjarmason 2019-07-02 11:09 ` Duy Nguyen 2019-07-02 14:54 ` Derrick Stolee 2019-07-02 16:59 ` Junio C Hamano 2019-06-19 15:12 ` [PATCH v2 2/3] repo-settings: use index.version=4 by default Derrick Stolee via GitGitGadget 2019-06-19 15:12 ` [PATCH v2 3/3] repo-settings: pack.useSparse=true Derrick Stolee via GitGitGadget 2019-07-01 14:29 ` [PATCH v3 0/3] [RFC] Create 'core.featureAdoptionRate' setting to update config defaults Derrick Stolee via GitGitGadget 2019-07-01 14:29 ` [PATCH v3 1/3] repo-settings: create core.featureAdoptionRate setting Derrick Stolee via GitGitGadget 2019-07-01 23:27 ` Carlo Arenas 2019-07-02 9:20 ` Duy Nguyen 2019-07-02 10:53 ` Ævar Arnfjörð Bjarmason 2019-07-04 22:47 ` Jakub Narebski 2019-07-01 14:29 ` [PATCH v3 2/3] repo-settings: use index.version=4 by default Derrick Stolee via GitGitGadget 2019-07-01 14:29 ` [PATCH v3 3/3] repo-settings: pack.useSparse=true Derrick Stolee via GitGitGadget 2019-07-08 19:22 ` Derrick Stolee [this message] 2019-07-09 18:55 ` [PATCH v3 0/3] [RFC] Create 'core.featureAdoptionRate' setting to update config defaults Taylor Blau 2019-07-09 19:21 ` Junio C Hamano 2019-07-09 19:45 ` Derrick Stolee 2019-07-09 22:05 ` Junio C Hamano 2019-07-22 12:10 ` Derrick Stolee 2019-07-11 21:54 ` Jakub Narebski
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