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Re: random access delta streams

From: Greg Stein <gstein_at_lyra.org>
Date: 2000-11-14 20:37:53 CET

I'm not truly concerned with old revisions so much as random access on the
HEAD. The Reader is going to have a rather difficult time, in any case,
finding the right URL for older revisions.

Sorry, I realize that I confused my "today" recommendation with the
seekable-delta stuff. So to restate: "seekable revisions (old or new) are
great/necessary; efficient seeking of HEAD is probably a MUST; efficient
seeking of prior revisions is a MAY or SHOULD."

Cheers,
-g

On Tue, Nov 14, 2000 at 11:14:33AM -0600, Karl Fogel wrote:
> I think I agree with Branko on this one.
>
> Certainly, it is true that if we implement random access on old files
> in a groovy way, then you can point your Acrobat Reader (or whatever)
> at an old version of a huge doc and it will be retrieved efficiently.
>
> But if we don't spend the time on the grooviness right now, you will
> still be able to point your Acrobat Reader and read the old doc, it
> just won't be retrieved as quickly.
>
> There's nothing preventing us making the change later, if it turns out
> to be needed. It would be premature optimization to spend a lot of
> time on it now (unless Jim thinks it's not any significant extra work;
> but it sounds like it is, so I'm going on that assumption). Let's
> just get things working first.
>
> -K
>
> Greg Stein <gstein@lyra.org> writes:
> > On Tue, Nov 14, 2000 at 01:52:16PM -0500, Greg Hudson wrote:
> > > > Acrobat Reader. Today. I'd suggest the time is right :-)
> > >
> > > Let's have a little perspective here. Being able to efficiently run
> > > Adobe Acrobat Reader directly against versions of files in the
> > > repository is a good thing, but it's not a goal for Subversion 1.0.
> >
> > Perspective? I gave a concrete example, not an exhaustive list.
> >
> > And I hope that people *have* realized that a person can just point their
> > web browser at a Subversion repository and see the HEAD branch. Hell, you
> > can apply version control to your web site, and users can continue to just
> > browse through it like they always do. And that browsing could certainly
> > include the storage the PDF documents.
> >
> > Cheers,
> > -g
> >
> > --
> > Greg Stein, http://www.lyra.org/

-- 
Greg Stein, http://www.lyra.org/
Received on Sat Oct 21 14:36:14 2006

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