| pthread_attr_getschedparam | Returns the value of the schedparam attribute of a thread attributes object. |
| pthread_attr_setschedparam | Sets the value of the schedparam attribute of a thread attributes object. |
| pthread_getschedparam | Returns the value of the schedpolicy and schedparam attributes of a thread. |
| pthread_yield | Forces the calling thread to relinquish use of its processor. |