Re: [PATCH] [request for inclusion] Realtime LSM

Jack O'Quin
2005-01-16T23:56:30Z

> * Jack O'Quin <joq@io.com> wrote:
>> According to the manpage, nice(2) is per-process not per-thread. That
>> does not give the granularity we need.

Ingo Molnar <mingo@elte.hu> writes:
> the manpage is incorrect - sys_nice() is per-thread. (Btw., you could
> use setpriority() too.)

OK. Where is this stuff documented?

BTW, I think this violates POSIX, which states...

The nice value set with nice() shall be applied to the process. If
the process is multi-threaded, the nice value shall affect all
system scope threads in the process.

(It does not affect SCHED_FIFO or SCHED_RR threads, however.)

Is it possible to call sched_setscheduler() with a thread ID instead
of a pid? That's what I really need. JACK sets and resets the thread
priorities from a different thread.
--
joq