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| author | Thomas Gleixner <tglx@linutronix.de> | 2007-02-16 01:28:03 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-16 08:13:59 -0800 |
| commit | 79bf2bb335b85db25d27421c798595a2fa2a0e82 (patch) | |
| tree | 550ec2654ae1dd65b871de7fe9c890108c6e86d8 /kernel/time/Kconfig | |
| parent | f8381cba04ba8173fd5a2b8e5cd8b3290ee13a98 (diff) | |
| download | linux-79bf2bb335b85db25d27421c798595a2fa2a0e82.tar.gz linux-79bf2bb335b85db25d27421c798595a2fa2a0e82.tar.bz2 linux-79bf2bb335b85db25d27421c798595a2fa2a0e82.zip | |
[PATCH] tick-management: dyntick / highres functionality
With Ingo Molnar <mingo@elte.hu>
Add functions to provide dynamic ticks and high resolution timers. The code
which keeps track of jiffies and handles the long idle periods is shared
between tick based and high resolution timer based dynticks. The dyntick
functionality can be disabled on the kernel commandline. Provide also the
infrastructure to support high resolution timers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/time/Kconfig')
| -rw-r--r-- | kernel/time/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig new file mode 100644 index 000000000000..9ec54eb3667f --- /dev/null +++ b/kernel/time/Kconfig @@ -0,0 +1,15 @@ +# +# Timer subsystem related configuration options +# +config TICK_ONESHOT + bool + default n + +config NO_HZ + bool "Tickless System (Dynamic Ticks)" + depends on GENERIC_TIME && GENERIC_CLOCKEVENTS + select TICK_ONESHOT + help + This option enables a tickless system: timer interrupts will + only trigger on an as-needed basis both when the system is + busy and when the system is idle. |