Fast diff command for large files?

Kirk Strauser kirk at
Fri Nov 4 19:56:57 GMT 2005

On Friday 04 November 2005 13:39, Charles Swiger wrote:

> OK, but even if only one line out of 1000 changes, you still can't
> make either diff or Colin Percival's bsdiff run on gigabyte sized
> files and have it fit into MAXDSIZE on 32-bit address space.

For the record, textproc/2bsd-diff works fine - it's just slow.

<thinking out loud>
I wonder if rsync could be modified to output its patches rather than 
silently applying them to a target file.  It seems to be pretty good at 
comparing large files quickly...
Kirk Strauser
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