Hey Andy, thanks for taking a look.
On Fri, Jul 17, 2020 at 8:14 PM Andy Lutomirski wrote:
>
> PeterZ and I fixed a whole series of bugs a few years ago, and remote
> wakeups *should* already do this. Did we miss something? Did it
> regress? Even the call_function_single path ought to go throug
> On Jul 17, 2020, at 7:13 PM, Josh Don wrote:
>
> From: Venkatesh Pallipadi
>
> smp_call_function_single and smp_send_reschedule send unconditional IPI
> to target CPU. However, if the target CPU is in some form of poll based
> idle, we can do IPI-less wakeups.
>
> Doing this has certain advant
From: Venkatesh Pallipadi
smp_call_function_single and smp_send_reschedule send unconditional IPI
to target CPU. However, if the target CPU is in some form of poll based
idle, we can do IPI-less wakeups.
Doing this has certain advantages:
* Lower overhead on Async "no wait" IPI send path.
* Avoi
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