* [RFC PATCH] arm64: make Timer Interrupt Frequency selectable
@ 2015-10-26 3:48 Kefeng Wang
2015-10-28 18:50 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Kefeng Wang @ 2015-10-26 3:48 UTC (permalink / raw)
To: linux-arm-kernel
It allows a selectable timer interrupt frequency of 100, 250, 300 and 1000 HZ.
We will get better performance when choose a suitable frequency in some scene.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
arch/arm64/Kconfig | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 07d1811..4a07d89 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -432,10 +432,7 @@ config HOTPLUG_CPU
can be controlled through /sys/devices/system/cpu.
source kernel/Kconfig.preempt
-
-config HZ
- int
- default 100
+source kernel/Kconfig.hz
config ARCH_HAS_HOLES_MEMORYMODEL
def_bool y if SPARSEMEM
--
1.7.12.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [RFC PATCH] arm64: make Timer Interrupt Frequency selectable
2015-10-26 3:48 [RFC PATCH] arm64: make Timer Interrupt Frequency selectable Kefeng Wang
@ 2015-10-28 18:50 ` Catalin Marinas
0 siblings, 0 replies; 2+ messages in thread
From: Catalin Marinas @ 2015-10-28 18:50 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Oct 26, 2015 at 11:48:16AM +0800, Kefeng Wang wrote:
> It allows a selectable timer interrupt frequency of 100, 250, 300 and 1000 HZ.
> We will get better performance when choose a suitable frequency in some scene.
>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Queued for 4.4. Thanks.
--
Catalin
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2015-10-26 3:48 [RFC PATCH] arm64: make Timer Interrupt Frequency selectable Kefeng Wang
2015-10-28 18:50 ` Catalin Marinas
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