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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-31 12:27:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-31 12:27:19 -0800 |
| commit | 4c470317f91e5e684201f21e237fe444ed47c18c (patch) | |
| tree | 12c0e65d7927b825e26f4b960fb8fe56e6c916f9 /init | |
| parent | e7c632fc479a8ac28da19252d44b0bd90a2638f6 (diff) | |
| parent | d94d105329e4a8a874853b5bd854b6587c41adda (diff) | |
| download | linux-4c470317f91e5e684201f21e237fe444ed47c18c.tar.bz2 | |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Three patches addressing the fallout of the CPU_ISOLATION changes
especially with NO_HZ_FULL plus documentation of boot parameter
dependency"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/isolation: Document boot parameters dependency on CONFIG_CPU_ISOLATION=y
sched/isolation: Enable CONFIG_CPU_ISOLATION=y by default
sched/isolation: Make CONFIG_NO_HZ_FULL select CONFIG_CPU_ISOLATION
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 2934249fba46..690a381adee0 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -461,10 +461,14 @@ endmenu # "CPU/Task time and stats accounting" config CPU_ISOLATION bool "CPU isolation" + default y help Make sure that CPUs running critical tasks are not disturbed by any source of "noise" such as unbound workqueues, timers, kthreads... - Unbound jobs get offloaded to housekeeping CPUs. + Unbound jobs get offloaded to housekeeping CPUs. This is driven by + the "isolcpus=" boot parameter. + + Say Y if unsure. source "kernel/rcu/Kconfig" |