[PATCH] file_checksum() optimization

[Pierre Bernhardt]

Am 25.05.20 um 00:42 schrieb Jorrit Jongma via rsync:
> Testing showed the performance improvement to go up quickly going from
> 64 to 512 bytes, with diminishing returns above, 4096 was where it
> seemed to plateau for me. Re-used CHUNK_SIZE (32 kB) as it already
> exists and should be fine to use here anyway.
Will this not to produce more false negative results? This mean if
comparing a block will produce "same cksum" although the blocks differs?

Cheers,
Pierre