Hi James,

"J. R. Haigh (re. Guix)" <JRHaigh+ML.GNU.Guix@Runbox.com> writes:

> Hi all,
> 	I've been using Guix on Debian 9 Stretch

[...]

> 	Is there a way to declaratively set the default autogroup
> 	niceness of Guix's build daemon?

Since Debian 9 users systemd, should be possible by configuring a limit
in the systemd service unit file [1]; I've never tried but try adding
"LimitNICE=19" in the [Service] stanza

Documentation on that parameter here:
https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Process%20Properties

Remember to "systemctl daemon-reload" after editing one the systemd
service unit file

HTH! Gio'

[1] /etc/systemd/system/guix-daemon.service

[...]

-- 
Giovanni Biscuolo

Xelera IT Infrastructures