Re: Guix to participate in the Google Summer of Code

[Ricardo Wurmus <rekado@elephly.net>]

Chris Marusich <cmmarusich@gmail.com> writes:

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> Garbage collection in the context of Guix is not very difficult to
>> understand.  The garbage collector may remove any item that has zero
>> users; the link count on a store item is indicative of the number of
>> users that item has.  For garbage collection you essentially go through
>> all items and check if the link count is zero.

[…]

> It looks like, in nix/libstore/gc.cc, we basically walk the references
> graph starting from the GC roots and delete anything that can't be
> reached from a root.

Yes, this is more accurate.  Thanks for the correction.

(Link counts only matter for deduplication.)

--
Ricardo

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