Messages in this thread |  | | From | Vincent Guittot <> | Subject | [PATCH 0/6] Add latency_nice priority | Date | Fri, 11 Mar 2022 17:14:00 +0100 |
| |
This patchset restarts the work about adding a latency nice priority to describe the latency tolerance of cfs tasks.
The patches [1-4] have been done by Parth: https://lore.kernel.org/lkml/20200228090755.22829-1-parth@linux.ibm.com/
I have just rebased and moved the set of latency priority outside the priority update. I have removed the reviewed tag because the patches are 2 years old.
The patches [5-6] use latency nice priority to decide if a cfs task can preempt the current running task. Patch 5 gives some tests results with cyclictests and hackbench to highlight the benefit of latency nice priority for short interactive task or long intensive tasks.
Parth Shah (4): sched: Introduce latency-nice as a per-task attribute sched/core: Propagate parent task's latency requirements to the child task sched: Allow sched_{get,set}attr to change latency_nice of the task sched/core: Add permission checks for setting the latency_nice value
Vincent Guittot (2): sched/fair: Take into account latency nice at wakeup sched/fair: Add sched group latency support
include/linux/sched.h | 3 + include/uapi/linux/sched.h | 4 +- include/uapi/linux/sched/types.h | 19 +++++++ init/init_task.c | 1 + kernel/sched/core.c | 97 ++++++++++++++++++++++++++++++++ kernel/sched/debug.c | 1 + kernel/sched/fair.c | 92 +++++++++++++++++++++++++++++- kernel/sched/sched.h | 34 +++++++++++ tools/include/uapi/linux/sched.h | 4 +- 9 files changed, 251 insertions(+), 4 deletions(-)
-- 2.17.1
|  |