* [GIT PULL] timers/nohz updates for v5.14
@ 2021-06-28 7:00 Ingo Molnar
2021-06-28 19:34 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Ingo Molnar @ 2021-06-28 7:00 UTC (permalink / raw)
To: Linus Torvalds
Cc: linux-kernel, Thomas Gleixner, Frédéric Weisbecker,
Peter Zijlstra, Andrew Morton
Linus,
Please pull the latest timers/nohz git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-2021-06-28
# HEAD: 09fe880ed7a160ebbffb84a0a9096a075e314d2f MAINTAINERS: Add myself as context tracking maintainer
Updates to the tick/nohz code in this cycle:
- Micro-optimize tick_nohz_full_cpu()
- Optimize idle exit tick restarts to be less eager
- Optimize tick_nohz_dep_set_task() to only wake up
a single CPU. This reduces IPIs and interruptions
on nohz_full CPUs.
- Optimize tick_nohz_dep_set_signal() in a similar
fashion.
- Skip IPIs in tick_nohz_kick_task() when trying
to kick a non-running task.
- Micro-optimize tick_nohz_task_switch() IRQ flags
handling to reduce context switching costs.
- Misc cleanups and fixes
Thanks,
Ingo
------------------>
Frederic Weisbecker (4):
tick/nohz: Remove superflous check for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
tick/nohz: Update nohz_full Kconfig help
tick/nohz: Only wake up a single target cpu when kicking a task
MAINTAINERS: Add myself as context tracking maintainer
Marcelo Tosatti (2):
tick/nohz: Change signal tick dependency to wake up CPUs of member tasks
tick/nohz: Kick only _queued_ task whose tick dependency is updated
Peter Zijlstra (2):
tick/nohz: Evaluate the CPU expression after the static key
tick/nohz: Call tick_nohz_task_switch() with interrupts disabled
Yunfeng Ye (2):
tick/nohz: Conditionally restart tick on idle exit
tick/nohz: Update idle_exittime on actual idle exit
MAINTAINERS | 6 ++
include/linux/sched.h | 2 +
include/linux/tick.h | 26 +++++----
kernel/sched/core.c | 7 ++-
kernel/time/Kconfig | 11 ++--
kernel/time/posix-cpu-timers.c | 4 +-
kernel/time/tick-sched.c | 129 ++++++++++++++++++++++++++++-------------
7 files changed, 125 insertions(+), 60 deletions(-)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL] timers/nohz updates for v5.14
2021-06-28 7:00 [GIT PULL] timers/nohz updates for v5.14 Ingo Molnar
@ 2021-06-28 19:34 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2021-06-28 19:34 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, linux-kernel, Thomas Gleixner,
Frédéric Weisbecker, Peter Zijlstra, Andrew Morton
The pull request you sent on Mon, 28 Jun 2021 09:00:15 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-2021-06-28
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/9269d27e519ae9a89be8d288f59d1ec573b0c686
Thank you!
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