Re: [PATCH 0/2] arm64: cpuidle: make arm_cpuidle_suspend() more efficient

From: Will Deacon
Date: Thu Mar 24 2016 - 07:15:01 EST


On Thu, Mar 24, 2016 at 01:08:48PM +0800, Jisheng Zhang wrote:
> This series is to improve the arm_cpuidle_suspend() a bit by removing/moving
> out checks from this hot path.
>
> Jisheng Zhang (2):
> arm64: cpuidle: remove cpu_ops check from arm_cpuidle_suspend()
> arm64: cpuidle: make arm_cpuidle_suspend() a bit more efficient
>
> arch/arm64/kernel/cpuidle.c | 9 ++-------
> 1 file changed, 2 insertions(+), 7 deletions(-)

These look fine to me, but do you have any rough numbers showing what
sort of improvement we get from this change?

Will