[systemd-bugs] [Bug 54753] New: Cannot configure default control group hierarchies via logind.conf

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54753

             Bug #: 54753
           Summary: Cannot configure default control group hierarchies via
                    logind.conf
    Classification: Unclassified
           Product: systemd
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
        AssignedTo: systemd-bugs at lists.freedesktop.org
        ReportedBy: philipp.reinkemeier at offis.de
         QAContact: systemd-bugs at lists.freedesktop.org


I tried to configure cpu controller for each user logging in, in order to even
out CPU usage. I am aware that such things can be done using systemd's pam
module with the "controllers=" option. However, that pam module is included in
multiple other pam files. So i searched for a more centralized place where i
could configure it and stumbled upon logind.conf. Its man page talks about an
option "Controllers=", which seems to have the same effect like the
corresponding option of the pam module. However, "Controllers=cpu" has no
effect. Looking at "/sys/fs/cgroups/cpu", i do not see any hierarchy with my
username (which exists when configuring controllers via the pam module option).

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