Re: Anyone ever look at libvdelta?

On Fri, 2002-02-08 at 13:51, Daniel Berlin wrote:
> I'm just wondering if anyone looked at it/determined if it was any faster
> than what we have now.

I just took a look at the code. I think what we have right now easier
to read and understand.

The license is also some awful 324-line AT&T abomination with a nasty
termination clause (which probably disqualifies it from being "open
source" according to the OSI, by the way).

> Certainly, it should be more space efficient.

In its results, or in its processing? I didn't see much evidence of the
latter (it seems to allocate about the same amount of stuff); for the
former, it would be interesting to run tests and see if there's a
noticeable difference.

If we do significantly worse than this code, then we probably have a bug
or misunderstanding in our vdelta algorithm (or we underestimated the
savings from vcdiff instruction encoding), and we should revisit our
algorithm.

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Received on Sat Oct 21 14:37:05 2006