Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 0/6] isolation: 1Hz residual tick offloading v5 | Date | Thu, 8 Feb 2018 18:59:33 +0100 |
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This series should address most reviews from Peterz in v4:
* Check that the remote tick doesn't come way too late. For that we track the last time we called update_curr() with checking tsk->se.exec_start which doesn't only account for ticks but also queue and dequeue events.
* Add comment to explain why we use HZ as a delay
* Feed changelog with explanation about correctness assumptions on calling rq::task_tick() remotely.
The last element is to enforce unbound workqueues to queue a work on a CPU of the same node when the enqueuer is outside the unbound mask. This will be sorted out seperately.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git sched/0hz-v5
HEAD: 62711eb7856882d443615f0ef0ba9518977b7abd
Thanks, Frederic ---
Frederic Weisbecker (6): sched: Rename init_rq_hrtick to hrtick_rq_init nohz: Allow to check if remote CPU tick is stopped sched/isolation: Isolate workqueues when "nohz_full=" is set sched/isolation: Residual 1Hz scheduler tick offload sched/nohz: Remove the 1 Hz tick code sched/isolation: Tick offload documentation
Documentation/admin-guide/kernel-parameters.txt | 6 +- include/linux/sched/isolation.h | 1 + include/linux/sched/nohz.h | 4 - include/linux/tick.h | 2 + kernel/sched/core.c | 116 ++++++++++++++++++------ kernel/sched/idle_task.c | 1 - kernel/sched/isolation.c | 8 +- kernel/sched/sched.h | 13 +-- kernel/time/tick-sched.c | 13 +-- kernel/workqueue.c | 3 +- 10 files changed, 115 insertions(+), 52 deletions(-)
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