Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [RFC 00/12] Introduce housekeeping subsystem v2 | Date | Wed, 23 Aug 2017 03:50:59 +0200 |
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So after the feedback from the v1, I decided to take it one step further and propose to re-implement isolcpus= on top of housekeeping. I expect it to be controversial because it brings a behaviour change: isolcpus= won't disable load balancing anymore. So you change the affinity of a task at your own risk. OTOH it might make the implementation of isolcpus more extendable, maybe more acceptable for a cpuset interface. I leave you judge.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git core/isolation-v2
HEAD: 79ef9a911551a4f700b057ed794c223bd3a97d7b
Thanks, Frederic ---
Frederic Weisbecker (12): housekeeping: Move housekeeping related code to its own file watchdog: Use housekeeping_cpumask() instead of ad-hoc version housekeeping: Provide a dynamic off-case to housekeeping_any_cpu() housekeeping: Make housekeeping cpumask private housekeeping: Use its own static key housekeeping: Rename is_housekeeping_cpu to housekeeping_cpu housekeeping: Move it under own config, independant from NO_HZ housekeeping: Introduce housekeeping flags workqueue: Affine unbound workqueues to housekeeping cpumask housekeeping: Affine unbound kthreads housekeeping: Handle nohz_full= parameter housekeeping: Reimplement isolcpus on housekeeping
drivers/base/cpu.c | 10 ++- drivers/net/ethernet/tile/tilegx.c | 6 +- include/linux/housekeeping.h | 52 +++++++++++++++ include/linux/sched.h | 2 - include/linux/tick.h | 38 +---------- init/Kconfig | 7 +++ init/main.c | 2 + kernel/Makefile | 1 + kernel/cgroup/cpuset.c | 13 +--- kernel/housekeeping.c | 126 +++++++++++++++++++++++++++++++++++++ kernel/kthread.c | 5 +- kernel/rcu/tree_plugin.h | 3 +- kernel/rcu/update.c | 3 +- kernel/sched/core.c | 25 ++------ kernel/sched/fair.c | 3 +- kernel/sched/topology.c | 19 +----- kernel/time/tick-sched.c | 31 +-------- kernel/watchdog.c | 13 ++-- kernel/workqueue.c | 3 +- 19 files changed, 230 insertions(+), 132 deletions(-)
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