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-rw-r--r--kernel/time/Kconfig20
1 files changed, 15 insertions, 5 deletions
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index 83e158d016ba..04bfd62f5e5c 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -64,6 +64,15 @@ config LEGACY_TIMER_TICK
lack support for the generic clockevent framework.
New platforms should use generic clockevents instead.
+config TIME_KUNIT_TEST
+ tristate "KUnit test for kernel/time functions" if !KUNIT_ALL_TESTS
+ depends on KUNIT
+ default KUNIT_ALL_TESTS
+ help
+ Enable this option to test RTC library functions.
+
+ If unsure, say N.
+
if GENERIC_CLOCKEVENTS
menu "Timers subsystem"
@@ -117,13 +126,14 @@ config NO_HZ_FULL
the task mostly runs in userspace and has few kernel activity.
You need to fill up the nohz_full boot parameter with the
- desired range of dynticks CPUs.
+ desired range of dynticks CPUs to use it. This is implemented at
+ the expense of some overhead in user <-> kernel transitions:
+ syscalls, exceptions and interrupts.
- This is implemented at the expense of some overhead in user <-> kernel
- transitions: syscalls, exceptions and interrupts. Even when it's
- dynamically off.
+ By default, without passing the nohz_full parameter, this behaves just
+ like NO_HZ_IDLE.
- Say N.
+ If you're a distro say Y.
endchoice