Re: [PATCH 0/2] HRTICK reprogramming and optimization

2021-02-08 Thread Peter Zijlstra
On Mon, Feb 08, 2021 at 08:35:52AM +0100, Juri Lelli wrote: > Juri Lelli (2): > sched/features: Fix hrtick reprogramming > sched/features: Distinguish between NORMAL and DEADLINE hrtick Thanks!

[PATCH 0/2] HRTICK reprogramming and optimization

2021-02-07 Thread Juri Lelli
Hi All, Hung tasks and RCU stall cases were reported on systems which were not 100% busy. Investigation of such unexpected cases (no sign of potential starvation caused by tasks hogging the system) pointed out that the periodic sched tick timer wasn't serviced anymore after a certain point and