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由 Tay Ray Chuan 提交于
For histogram diff, we can afford a smaller sample size and thus a poorer estimate of the number of lines, as the hash table (rhash) won't be filled up/grown. This is safe as the final count of lines (xdf.nrecs) will be updated correctly anyway by xdl_prepare_ctx(). This gives us a small boost in performance. Signed-off-by: NTay Ray Chuan <rctay89@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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