zen-kernel-muqss

• Zen Kernel — Result of a collaborative effort of kernel hackers to provide the best Linux kernel possible for everyday systems. Some more details can be found on https://liquorix.net (which provides kernel binaries based on Zen for Debian). linux-zen default use CFS CPU scheduler.
• MuQSS —See the LKML announcement posted by CK.

Check if MuQSS is enabled

This start-up message should appear in the kernel ring buffer when MuQSS in enabled, use:

# dmesg | grep -i 'muqss cpu'

You can see: MuQSS CPU scheduler v0.xxx by Con Kolivas.

MuQSS patched kernels and systemd

It is a common mistake to think that MuQSS does not support cgroups. It does but not all the cgroup features (e.g. CPU limiting will not work).