CFS supports a feature called "HRTICK" which allows scheduling decisions to be made independent of the HZ tick. That means that we can achieve much more fine grained time slices and thus be more fair in distributing time to different workloads.
Unfortunately, HRTICK currently does not work with the Core Scheduling patch set. This patch set adds support for it. Feel free to squash bits in where it makes sense. Alex Alexander Graf (3): sched: Allow hrticks to work with core scheduling sched: Trigger new hrtick if timer expires too fast sched: Use hrticks even with >sched_nr_latency tasks kernel/sched/core.c | 13 +++++++++++++ kernel/sched/fair.c | 18 ++++++++++++++++-- kernel/sched/sched.h | 4 ++++ 3 files changed, 33 insertions(+), 2 deletions(-) -- 2.26.2 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879
