Re: Bug#656142: ITP: duff -- Duplicate file finder

[Samuel Thibault <sthibault@debian.org>]

Lars Wirzenius, le Tue 17 Jan 2012 09:12:58 +0000, a écrit :
> real  user  system  max RSS  elapsed  cmd                                   
>  (s)   (s)     (s)    (KiB)      (s)                                        
>  3.2   2.4     5.8    62784      5.8  hardlink --dry-run files > /dev/null  
>  1.1   0.4     1.6    15424      1.6  rdfind files > /dev/null              
>  1.9   0.2     2.2     9904      2.2  duff-0.5/src/duff -r files > /dev/null

And fdupes on the same set of files?

> Personally, I would be wary of using checksums for file comparisons,
> since comparing files byte-by-byte isn't slow (you only need to
> do it to files that are identical in size, and you need to read
> all the files anyway).

In some cases you may have a lot of files with identical size, so at
least a simple SSE-prone thing like crc is useful.

Samuel