[cvsnt] Out of memory

Tony Hoyle tony.hoyle at march-hare.com
Thu Oct 6 00:55:18 BST 2005

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Bo Berglund wrote:
> If you have files in the list of changed files that are binary, and
> these files also are rather big and you have committed a lot of revisions
> already, then the "RCS" file on the server that corresponds to this
> project file will have grown to very large size.
> CVS must read the entire contents of the RCS file init memory when
> it processes the commit so the server must have this amount of RAM 
> available - in fact I think I remember reading somewhere thet CVSNT
> needs 2 times the size of the RCS file as free RAM.
It's not quite that inefficient, but it needs around 2* the size of the 
largest version of the file, unless you're checking out HEAD.

Binary diff needs 3* at the moment, due to the way it works (it needs 
both full copies in memory to work out the diff, which may grow 
potentially to the original size).


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