mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

features: feature.manyFiles implies fast index writes

Browse Source 
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>
This commit is contained in:
Derrick Stolee
2023-01-06 16:31:56 +00:00
committed by Junio C Hamano
parent da9acde14e
commit 17194b195d
6 changed files with 22 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/config/feature.txt
View File

@ -23,6 +23,11 @@ feature.manyFiles::
working directory. With many files, commands such as `git status` and
`git checkout` may be slow and these new defaults improve performance:
+
* `index.skipHash=true` speeds up index writes by not computing a trailing
checksum. Note that this will cause Git versions earlier than 2.13.0 to
refuse to parse the index and Git versions earlier than 2.40.0 will report
a corrupted index during `git fsck`.
+
* `index.version=4` enables path-prefix compression in the index.
+
* `core.untrackedCache=true` enables the untracked cache. This setting assumes