Sergey Kolosov a9017caff3 nptl: extend test coverage for sched_yield ...

We add sched_yield() API testing to the existing thread affinity
test case because it allows us to test sched_yield() operation
in the following scenarios:

  * On a main thread.
  * On multiple threads simultaneously.
  * On every CPU the system reports simultaneously.

The ensures we exercise sched_yield() in as many scenarios as
we would exercise calls to the affinity functions.

Additionally, the test is improved by adding a semaphore to coordinate
all the threads running, so that an early starter thread won't consume
cpu resources that could be used to start the other threads.

Co-authored-by: DJ Delorie <dj@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>

2025-03-07 17:50:44 -05:00

..

linux

nptl: extend test coverage for sched_yield

2025-03-07 17:50:44 -05:00