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Re: [Gnu-arch-users] Libraries and changesets

From: Tom Lord
Subject: Re: [Gnu-arch-users] Libraries and changesets
Date: Tue, 30 Dec 2003 23:31:50 -0800 (PST)

    > From: Aaron Bentley <address@hidden>

    > I've just started using a greedy, sparse library, and quicky saw it was 
    > eating space like there was no tomorrow. 

    > [....] Star-merging my branch caused the library to double in
    > size

"just started" ... "star-merged" ....  "doubled size"

So, how does the total size compare to a few copies of your whole
tree?   Probably about the same.   That'd be expected for the scenario
you vaguely describe -- it's not the expected rate of sustained growth
over a longer period of time.

What's far more interesting, imo, is what happens when your libraries
start having hundreds or thousands of revisions -- the result of
sustained work over a long period of time.  I think you'll find that
they grow quite slowly if you measure their growth in dollars per

When I first added revlibs, around two years ago, my worst-case
projection was that my fairly dinky disk would be full by now.   In
fact, I've used about 10% of it for revlibs.

Now to be sure, eventually you might want to write a little shell
script to prune old revisions from your revlib (and you can cleverly
use revlib paths to make that easier in some scenarios) -- but if
you're just looking at the numbers after the first few additions in a
couple of different branches: those aren't likely to be typical;
you're just priming the pump.


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