Re: Extra context switches with signalfd on CONFIG_PREEMPT_RT

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On 2019-08-29 13:55:27 [-0700], Austin Schuh wrote:
> 
> This is still RT, but is pretty inefficient.  Any suggestions on what
> might be going wrong before I start digging in?

there is a pi-boost sched_switch with state R->D  and then de-boost
switch back. This looks like there is a wakeup while a lock is held
which is required by the task that is woken up.

> Thanks,
>   Austin

Sebastian



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