[dpdk-dev] [RFC v2] eal: simplify the implementation of rte_ctrl_thread_create

[Mattias Rönnblom]

On 2021-08-24 23:30, Stephen Hemminger wrote:
> On Tue, 24 Aug 2021 20:03:03 +0000
> Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com> wrote:
> 
>>> One difference between this implementation and the previous one is this busy
>>> loop. rte_pause() relaxes the cpu, but will not make the calling thread to sleep
>>> and wait for the sync event. So here we can spin a quite long time until the
>>> other thread is scheduled by the OS.
>> Yes, this is a difference. We could add a microsleep to allow for the OS to un-schedule the current thread.
> 
> Why not use sched_yield() here?
> 

The man page is not exactly encouraging the use sched_yield on CFS.