17194b195d
The recent addition of the index.skipHash config option allows index
writes to speed up by skipping the hash computation for the trailing
checksum. This is particularly critical for repositories with many files
at HEAD, so add this config option to two cases where users in that
scenario may opt-in to such behavior:
1. The feature.manyFiles config option enables some options that are
helpful for repositories with many files at HEAD.
2. 'scalar register' and 'scalar reconfigure' set config options that
optimize for large repositories.
In both of these cases, set index.skipHash=true to gain this
speedup. Add tests that demonstrate the proper way that
index.skipHash=true can override feature.manyFiles=true.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
35 lines
1.7 KiB
Plaintext
35 lines
1.7 KiB
Plaintext
feature.*::
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The config settings that start with `feature.` modify the defaults of
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a group of other config settings. These groups are created by the Git
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developer community as recommended defaults and are subject to change.
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In particular, new config options may be added with different defaults.
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feature.experimental::
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Enable config options that are new to Git, and are being considered for
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future defaults. Config settings included here may be added or removed
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with each release, including minor version updates. These settings may
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have unintended interactions since they are so new. Please enable this
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setting if you are interested in providing feedback on experimental
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features. The new default values are:
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+
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* `fetch.negotiationAlgorithm=skipping` may improve fetch negotiation times by
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skipping more commits at a time, reducing the number of round trips.
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+
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* `gc.cruftPacks=true` reduces disk space used by unreachable objects during
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garbage collection, preventing loose object explosions.
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feature.manyFiles::
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Enable config options that optimize for repos with many files in the
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working directory. With many files, commands such as `git status` and
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`git checkout` may be slow and these new defaults improve performance:
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+
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* `index.skipHash=true` speeds up index writes by not computing a trailing
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checksum. Note that this will cause Git versions earlier than 2.13.0 to
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refuse to parse the index and Git versions earlier than 2.40.0 will report
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a corrupted index during `git fsck`.
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+
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* `index.version=4` enables path-prefix compression in the index.
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+
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* `core.untrackedCache=true` enables the untracked cache. This setting assumes
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that mtime is working on your machine.
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