Am 01.01.2015 um 20:02 schrieb Max Kellermann:
On 2015/01/01 18:30, Reventlov <cont...@volcanis.me> wrote:Hello. Since Systemd 205, the low-level cgroup configuration options ControlGroup= and ControlGroupAttribute= have been removed.Relevant upstream changelog: http://lists.freedesktop.org/archives/systemd-devel/2013-July/011679.html Thoses options should be disabled. Preserving the pre-systemd 205 behavior toward realtime is behind my scope, but I think it can be achieved by using (I guess) IOSchedulingClass.No, IOSchedulingClass has nothing to do with real-time (CPU) scheduling! This will disable real-time scheduling on old systemd versions, without any advantage for users of new systemd versions. It is unfortunate that a systemd feature has been removed without a replacement, and these configuration lines will stay there until there is a replacement.
it has nothing to do with systemd itself, it's just about upstream kernel and re-design of cgroups
http://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/ http://www.linuxfoundation.org/news-media/blogs/browse/2013/08/all-about-linux-kernel-cgroup%E2%80%99s-redesign
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