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authorMichael Kuhn <michael.kuhn@ovgu.de>2021-09-16 17:41:10 +0200
committerGitHub <noreply@github.com>2021-09-16 09:41:10 -0600
commitd73fe19d931f22307e5118b3f788304665de2db1 (patch)
tree07109dc0fb9de64083a6df480c546c7d3ce8263f /.gitignore
parent5b211c90f5b30dc3866b5d72185fe7ab6108ad46 (diff)
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Recommend Git's manyFiles feature (#25977)
Git 2.24 introduced a feature flag for repositories with many files, see: https://github.blog/2019-11-03-highlights-from-git-2-24/#feature-macros Since Spack's Git repository contains roughly 8,500 files, it can be worthwhile to enable this, especially on slow file systems such as NFS: ``` $ hyperfine --warmup 3 'cd spack-default; git status' 'cd spack-manyfiles; git status' Benchmark #1: cd spack-default; git status Time (mean ± σ): 3.388 s ± 0.095 s [User: 256.2 ms, System: 625.8 ms] Range (min … max): 3.168 s … 3.535 s 10 runs Benchmark #2: cd spack-manyfiles; git status Time (mean ± σ): 168.7 ms ± 10.9 ms [User: 98.6 ms, System: 126.1 ms] Range (min … max): 144.8 ms … 188.0 ms 19 runs Summary 'cd spack-manyfiles; git status' ran 20.09 ± 1.42 times faster than 'cd spack-default; git status' ```
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