Re: binary performance (was Re: Subversion & Word)

Brian Denny <brian@briandenny.net> writes:

> speaking of binary performance, what about time performance?
>
> we have some largeish (~5MB each) binaries in our CVS repository. commits
> and updates go pretty quick on new entries, but after a while they slow
> down (we were seeing times of two minutes per file at the tip of a long
> branch).
>
> i don't know enough about what goes on under CVS's hood to know exactly
> what causes this phenomenon... (?)

Probably because CVS uses RCS, and RCS files don't do any compression
on binary files. Every time you save the the big binary file to CVS,
the *entire* file gets prepended to the RCS file. That's why it takes
longer and longer to access over time. I think.

>
> will subversion handle these cases better?

That's the theory. An svn repository does binary compression on
absolutely everything.

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Received on Wed Mar 5 18:05:25 2003