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From "Bertrand Delacretaz" <bdelacre...@apache.org>
Subject Re: Next Generation Persistence
Date Fri, 15 Jun 2007 09:22:26 GMT
On 6/15/07, Thomas Mueller <thomas.tom.mueller@gmail.com> wrote:

> ...Lets 90% of the storage space used in a repository are large objects
> (binary data). With GlobalDataStore, cloning (and versioning) should
> get 9 times faster (and use much less storage space)....

You're right, in the case that you mention. Looks like some of us will
need to buy some <favorite-beverage-of-your-choice> for whoever
implements this ;-)

> ...On the other hand, it is better to copy short strings, instead of
> saving them only once and keeping a reference, because of the
> overhead, and because the potential saving is small. An exception is
> cloning whole (node) subtrees. Here, copy-on-write would help....

Agreed, some clever decisions might need to be made depending on
what's being cloned.


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