[linux-audio-dev] thread priority question

Martijn Sipkema msipkema at sipkema-digital.com
Wed Apr 30 18:54:01 UTC 2003

> On Wed, Apr 30, 2003 at 11:20:40 -0500, Ben Loftis wrote:
> > Is there an equivalent to sched_setscheduler() that adjusts thread
priority instead of process priority?  I want my audio thread to be higher
priority than my drawing thread.  Both threads are part of the same app
(process).  Is this possible in Linux v2.5?
> sched_setscheduler() works on threads too.

No, it does not. You need pthread_attr_setschedparam() to change
a thread's priority. Perhaps sched_setscheduler worked with
linuxthreads because it is not POSIX compliant since every thread
has a different pid, but with NPTL this is no longer the case.


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