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Re: Space wasting

From: Christophe Labouisse <gabuzo_at_tigris.org>
Date: 2004-03-09 09:32:52 CET

[Alvin, sorry for the sender only reply]

Alvin Thompson said:
> Mike Mason wrote:
>>> * it saves space, even without compression or even over a 'perfect'
file system
>>
>> One of Subversion's design axioms is "disk space is cheap". Saving it
now is pointless.
>
> this is a benefit of using this approach, not the main reason for it. if
this benefit bugs you, you may add extra files to use up the space
again.

I'll guess some figures about the *actual* NTFS overhead should help to
understand how bad the space problem is under Windows.

Anyway as many people pointed out, going to a single compressed file for
metadata is not cheap (dev may be cheap but finding/testing or
implementing the compression library won't be cheap) and may (will?) cause
serious performance problems. Now since "disk space is cheap", should the
subversion devellopment go into this difficult path to save some KBytes on
multi GBytes drives as most PC are currently equiped with.

In my opinion this only case where the .svn paradigm cause a significant
waste of disk space is for large binary files. Unfortunatly, this issue
will probably not be solved with the single compressed file metadata
paradigm.

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Received on Tue Mar 9 10:01:51 2004

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