On Mon, 7 Nov 2016 13:30:15 -0600 (CST) Christoph Lameter <c...@linux.com> wrote:
> SCHED_RR tasks alternately running on on cpu can cause endless deferral of > kworker threads. With the global effect of the OS processing reserved > it may be the case that the processor we are executing never gets any > time. And if that kworker threads role is releasing a mutex (like the > cgroup_lock) then deadlocks can result. I believe SCHED_RR tasks will still throttle if they use up too much of the CPU. But I still don't see how this patch helps your situation. -- Steve
