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RE: The minimum commint unit?

From: Reedick, Andrew <jr9445_at_ATT.COM>
Date: Thu, 5 Feb 2009 09:09:16 -0600

> -----Original Message-----
> From: vichy [mailto:vichy.kuo_at_gmail.com]
> Sent: Thursday, February 05, 2009 9:54 AM
> To: Olivier Sannier
> Cc: Ryan Schmidt; users_at_subversion.tigris.org
> Subject: Re: The minimum commint unit?
> Thanks for your help.
> According your explanation, the size of VSS finally will bigger than
> SVN, since VSS record the whole file while SVN only record what line
> changed in the database?
> appreciate your help.
> vichy

It could be:
a) The minimum commit unit for both VSS and SVN is a file. That's the
smallest object you can actually version. (Well, technically a
versioned property is the smallest unit, but you still have to attach
the property to a file/dir.

Or it could be:
b) In the old days, many versioning systems would store binary files as
whole files. Nowadays they store deltas for both text and binary files.
From what I can google, it appears that VSS stores just the delta for
both text and binary files. Subversion uses deltas for both also.

"minimum commit unit" isn't a common metric that I'm familiar with.
Plus, I think the "minimum commit unit" metric listed on the site is not
useful and/or accurate. I would ignore the "minimum commit unit".


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Received on 2009-02-05 17:40:06 CET

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