Bjørn Erik Pedersen fb8909d5b0

Use xxHash for the change detector ...

Much faster compared to MD5:

```
name          old time/op    new time/op    delta
HashingFs-10    21.3µs ± 2%     3.2µs ±17%  -84.96%  (p=0.029 n=4+4)

name          old alloc/op   new alloc/op   delta
HashingFs-10    12.9kB ± 0%    12.8kB ± 1%   -1.31%  (p=0.029 n=4+4)

name          old allocs/op  new allocs/op  delta
HashingFs-10      10.0 ± 0%       7.0 ± 0%  -30.00%  (p=0.029 n=4+4)
```

Updates #12643

2024-07-06 16:57:16 +02:00

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files

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glob

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component_fs.go

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createcounting_fs.go

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decorators.go

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dirsmerger.go

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fileinfo_test.go

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fileinfo.go

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filename_filter_fs_test.go

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filename_filter_fs.go

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fs_test.go

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fs.go

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glob_test.go

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glob.go

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hasbytes_fs.go

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hashing_fs_test.go

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hashing_fs.go

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noop_fs.go

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openfiles_fs.go

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rootmapping_fs_test.go

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rootmapping_fs.go

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stacktracer_fs.go

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walk_test.go

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walk.go

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