GNU bug report logs - #38167
guix pull takes over 8 GiB of memory to finish if there are no substitutes

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Message #20 received at 38167 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Danny Milosavljevic <dannym <at> scratchpost.org>
Cc: 38167 <at> debbugs.gnu.org, Christopher Baines <mail <at> cbaines.net>
Subject: Re: bug#38167: guix pull takes over 8 GiB of memory to finish if
 there are no substitutes
Date: Fri, 27 Dec 2019 19:08:48 +0100

Hi!

Danny Milosavljevic <dannym <at> scratchpost.org> skribis:

> On Mon, 11 Nov 2019 21:42:24 +0100
> Ludovic Courtès <ludo <at> gnu.org> wrote:
>
>> Also, it would be great if you could identify which derivation build
>> requires that much memory, if this was happening sequentially.  (I
>> suspect “guix-packages.drv” is the one that eats up the most memory.)
>
> How do I do that?

You could look at the output of “guix processes” and find out which
session child process is consuming memory.

> I've attached the process tree, filtered by "grep guix", of the latest such
> occurence (if this E-Mail still makes it before I have no memory left :P).

AFAICS this excludes the actual build process (which runs “guile”, not
“guix”).

HTH!

Ludo’.

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