Re: Subversion FSFS corruption

On Tue, 2005-08-23 at 20:24 -0400, Daniel Berlin wrote:
> > That suggests an oddity in our delta algorithm and a
> > possible space performance issue on compressed files.
>
> What do you mean, "oddity"?

This is a self-compressed delta, so I think it should be the vdelta
algorithm. Since we're compressing already-compressed data, one
wouldn't expect to be able to do any better than "insert the new data",
which is one instructions. But there seem to be scores of instructions,
which is not what one would expect from vdelta since it shouldn't be
finding four-byte matches within the target.

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Received on Wed Aug 24 07:57:01 2005