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Re: [Gnu-arch-users] Re: archive storage format comments on the size

From: Stephen J. Turnbull
Subject: Re: [Gnu-arch-users] Re: archive storage format comments on the size
Date: Tue, 30 Sep 2003 19:13:04 +0900
User-agent: Gnus/5.1001 (Gnus v5.10.1) XEmacs/21.4 (Portable Code, linux)

>>>>> "Pau" == Pau Aliagas <address@hidden> writes:

    >> Also, setup revision library and your get will be as fast as
    >> possible...

Andrea already said that was acceptable, but there's something else

    Pau> The problem is that it can become very big with kernel
    Pau> archives. Maybe it's better to cache revisions.

I don't think so.  Revision libraries are likely to scale well along
the # of files dimension, since each revision is likely to be near
minimum size (ie, a large collection of hard links with a small number
of changed files), while each cached revision will be an approximately
constant fraction of the size of the workspace, which itself is probably
proportional to the number of files.

Institute of Policy and Planning Sciences
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