Fwd: [unbound] memory usage

[Olivier Benghozi]

Actually on debian we use the standardly available sysfsutils, which I
recommend for this (and which is available in Redhat, too) ; it is the
equivalent for /sys than sysctl is for /proc:

1) install sysfsutils either with apt install or dnf install

2) config the stuff:
echo "kernel/mm/transparent_hugepage/enabled = madvise" >
/etc/sysfs.d/transparent_hugepage.conf
echo "kernel/mm/transparent_hugepage/defrag = madvise" >>
/etc/sysfs.d/transparent_hugepage.conf
systemctl enable sysfsutils.service

3) either reboot or just restart the services including unbound:
systemctl restart sysfsutils.service
systemctl restart unbound.service

That's it, the conf will survive reboot and updates.


Le sam. 16 mars 2024 à 14:08, Yuri via Unbound-users <
unbound-users at lists.nlnetlabs.nl> a écrit :

> It is necessary to disable THP so often that I had to write a script for
> this purpose. Doing this using the service is much more convenient than
> doing it any other way, in my opinion.
>
> https://github.com/yvoinov/memory-tools/blob/main/disable_thp.sh
> 16.03.2024 14:23, Tarko Tikan via Unbound-users пишет:
>
> hey,
>
> The question is that stats metrics (mem*) are stable . They rapidly grow
> after startup and stay at a logical
> maximum and don't keep growing.
>
> But the process size does.
>
>
> We saw the same on Debian due to THP like Oliver already mentioned. See
> https://github.com/NLnetLabs/unbound/issues/724
>
> We "solved" this by disabling THP on our unbound machines.
>
>

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