Re: [RFC v3 1/2] powerpc/cpuidle: cpuidle wakeup latency based on IPI and timer events

2023-09-21 Thread Michael Ellerman
Aboorva Devarajan writes: > On Wed, 2023-09-13 at 08:54 +1000, Michael Ellerman wrote: >> Aboorva Devarajan writes: >> > From: Pratik R. Sampat >> > >> > Introduce a mechanism to fire directed IPIs from a source CPU to a >> > specified target CPU and measure the time incurred on waking up the >

Re: [RFC v3 1/2] powerpc/cpuidle: cpuidle wakeup latency based on IPI and timer events

2023-09-21 Thread Aboorva Devarajan
On Wed, 2023-09-13 at 08:54 +1000, Michael Ellerman wrote: > Aboorva Devarajan writes: > > From: Pratik R. Sampat > > > > Introduce a mechanism to fire directed IPIs from a source CPU to a > > specified target CPU and measure the time incurred on waking up the > > target CPU in response. > > >

Re: [RFC v3 1/2] powerpc/cpuidle: cpuidle wakeup latency based on IPI and timer events

2023-09-12 Thread Michael Ellerman
Aboorva Devarajan writes: > From: Pratik R. Sampat > > Introduce a mechanism to fire directed IPIs from a source CPU to a > specified target CPU and measure the time incurred on waking up the > target CPU in response. > > Also, introduce a mechanism to queue a hrtimer on a specified CPU and > sub

[RFC v3 1/2] powerpc/cpuidle: cpuidle wakeup latency based on IPI and timer events

2023-09-10 Thread Aboorva Devarajan
From: Pratik R. Sampat Introduce a mechanism to fire directed IPIs from a source CPU to a specified target CPU and measure the time incurred on waking up the target CPU in response. Also, introduce a mechanism to queue a hrtimer on a specified CPU and subsequently measure the time taken to wakeu