diff options
| author | Con Kolivas <kernel@kolivas.org> | 2019-07-19 17:26:51 +1000 |
|---|---|---|
| committer | Con Kolivas <kernel@kolivas.org> | 2020-10-19 20:09:17 +1100 |
| commit | 9e526a64131939b390798528d09a5b7dcf58427e (patch) | |
| tree | bcf48741bdd858e76eaac880a70384f5a998fe78 | |
| parent | b480183c4b135797ff4a654f69c1a0a3b44e9682 (diff) | |
Make nohz_full not be picked up as a default config option and add recommendation to help.
| -rw-r--r-- | kernel/time/Kconfig | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index 3c6267b7a630..e7662101fcc3 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -75,6 +75,9 @@ config NO_HZ_COMMON depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS select TICK_ONESHOT +config NO_HZ_FULL + bool + choice prompt "Timer tick handling" default NO_HZ_IDLE if NO_HZ @@ -96,8 +99,9 @@ config NO_HZ_IDLE Most of the time you want to say Y here. -config NO_HZ_FULL +config NO_HZ_FULL_NODEF bool "Full dynticks system (tickless)" + select NO_HZ_FULL # NO_HZ_COMMON dependency depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS # We need at least one periodic CPU for timekeeping @@ -123,6 +127,8 @@ config NO_HZ_FULL transitions: syscalls, exceptions and interrupts. Even when it's dynamically off. + Not recommended for desktops,laptops, or mobile devices. + Say N. endchoice |