From: Ricardo Wurmus <rekado@elephly.net>
To: Pjotr Prins <pjotr.public12@thebird.nl>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: /gnu/store/.links/
Date: Fri, 09 Feb 2018 13:11:23 +0100 [thread overview]
Message-ID: <87d11e747o.fsf@elephly.net> (raw)
In-Reply-To: <20180209112214.GA5316@thebird.nl>
Hi Pjotr,
> What is
>
> ls -1 /gnu/store/.links/|wc -l
> 495938
>
> Never saw it before. Does this scale?
It’s used for optional file deduplication. It is enabled by default,
but you can disable it with a daemon option on file systems that
deduplicate data at the block level.
I don’t know about scalability. This number is still well below the
limits of ext4 file systems, but accessing a big directory listing like
that can be slow. I would feel a little better about this if we split
it up into different prefix directories (like it’s done for browser
caches). I don’t think it’s necessary, though.
--
Ricardo
GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC
https://elephly.net
next prev parent reply other threads:[~2018-02-09 12:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 11:22 /gnu/store/.links/ Pjotr Prins
2018-02-09 12:11 ` Ricardo Wurmus [this message]
2018-02-09 14:24 ` /gnu/store/.links/ Pjotr Prins
2018-02-09 17:00 ` /gnu/store/.links/ Ludovic Courtès
2018-02-09 17:56 ` /gnu/store/.links/ Pjotr Prins
2018-02-09 18:08 ` /gnu/store/.links/ Mark H Weaver
2018-02-09 18:23 ` /gnu/store/.links/ Leo Famulari
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