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This writes files by using (*os.File).Truncate, which resolves to the truncate system call on Unix. Compared to the naive loop, for _, b := range p { if b != 0 { return false } } the optimized allZero is about 10× faster: name old time/op new time/op delta AllZero-8 1.09ms ± 1% 0.09ms ± 1% -92.10% (p=0.000 n=10+10) name old speed new speed delta AllZero-8 3.84GB/s ± 1% 48.59GB/s ± 1% +1166.51% (p=0.000 n=10+10) |
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.. | ||
doc.go | ||
filerestorer.go | ||
filerestorer_test.go | ||
fileswriter.go | ||
fileswriter_test.go | ||
hardlinks_index.go | ||
hardlinks_index_test.go | ||
preallocate_darwin.go | ||
preallocate_linux.go | ||
preallocate_other.go | ||
preallocate_test.go | ||
restorer.go | ||
restorer_test.go | ||
restorer_unix_test.go | ||
sparsewrite.go |