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RE: Deltas?

From: Daniel Berlin <dan_at_dberlin.org>
Date: 2002-03-10 20:20:59 CET

On Sun, 10 Mar 2002, Stefan Boberg wrote:

> > Now, all of this writing is happening in the *.db files in the
> > repository. If you look at their sizes, they should barely grow at
> > all -- just by the size of the one-line delta.
>
> Yes, I understand that this is how it is supposed to work. But as far
> as I can see, this is not what is happening in my very basic tests. I
> understand that the log files are used by BDB for transaction
> journaling, and I can live with those. The real problem I have is that
> when I look at the database directory, the "strings" file - which I
> assume is the BDB table which stores the file deltas/data - grows much,
> much more than the delta data size.
>
> My test data is a large Maya 3D scene, "test.ma", saved out in ASCII
> format (file size = 49MB).

Right now, anything over the SVN stream chunk size is not deltified.

The default chunk size is 100 * 1024 right now.
This will change when we have either a delta-combiner or skip deltas.

--Dan

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Received on Sun Mar 10 20:21:51 2002

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