bug#66997: closed (nar-herder uses 10 GiB of resident memory, 100% CPU on hydra-guix-129)

[GNU bug Tracking System]

Your message dated Sun, 02 Jun 2024 20:22:01 -0400
with message-id <87ttiakh92.fsf@gmail.com>
and subject line Re: bug#66997: nar-herder uses 10 GiB of resident memory, 100% 
CPU on hydra-guix-129
has caused the debbugs.gnu.org bug report #66997,
regarding nar-herder uses 10 GiB of resident memory, 100% CPU on hydra-guix-129
to be marked as done.

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66997: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=66997
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> --- Begin Message ---
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>
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> Subject: 
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> nar-herder uses 10 GiB of resident memory, 100% CPU on hydra-guix-129
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>
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> Date: 
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> Tue, 07 Nov 2023 22:51:37 -0500
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>
>
>
> Hi,
>
> I was looking at top on the hydra-guix-129 node, which runs nar-herder,
> and saw this:
>
> --8<---------------cut here---------------start------------->8---
> 4772 nar-her+  20   0   28.9g  11.5g 100.0   6.1     55,55 S .nar-herder-rea
> --8<---------------cut here---------------end--------------->8---
>
> 11.5 GiB of memory seems a bit excessive, no?  Its cumulated processing
> time is also at the top of the table, and it seems stuck at 100% of CPU
> usage.
>
> Is this expected of the nar-herder, or has it gone awry?
>
> -- 
> Thanks,
> Maxim
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#66997: nar-herder uses 10 GiB of resident memory, 100% CPU on hydra-guix-129
>
>
>
>
> Date: 
>
> Sun, 02 Jun 2024 20:22:01 -0400
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13)
>
>
>
>
> Hi,
>
> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
>
> > Hi,
> >
> > Christopher Baines <mail@cbaines.net> writes:
> >
> >> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
> >>
> >>> I was looking at top on the hydra-guix-129 node, which runs nar-herder,
> >>> and saw this:
> >>>
> >>> 4772 nar-her+  20   0   28.9g  11.5g 100.0   6.1     55,55 S .nar-herder-rea
> >>>
> >>> 11.5 GiB of memory seems a bit excessive, no?  Its cumulated processing
> >>> time is also at the top of the table, and it seems stuck at 100% of CPU
> >>> usage.
> >>>
> >>> Is this expected of the nar-herder, or has it gone awry?
> >>
> >> I think hydra-guix-129 was running an older version of the nar-herder,
> >> so I've updated it and I think that's improved the situation.
> >>
> >> I've just reconfigured the machine to use a specific commit at the
> >> moment, but it would be good to bump the commit that the Guix package is
> >> using.
> >
> > The situation appears unresolved; c.f. `top' output on hydra-guix-129:
> >
> > 62775 nar-her+  20   0  903.7g  93.9g   0.0  49.8     22,44 S  `- fibers 0 
>
> This has since been resolved; it currently uses 675.6 MiB on
> hydra-guix-129.
>
> Thanks, Christopher!
>
> -- 
> Thanks,
> Maxim
>
>
> --- End Message ---