[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: Subversion FSFS corruption

From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2005-08-24 07:55:53 CEST

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.

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Wed Aug 24 07:57:01 2005

This is an archived mail posted to the Subversion Dev mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.