linux-kernel - Re: [RFC][PATCH] Multimedia scheduling class, take 2

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Message-ID: <4A09A525.4080107@sonarnerd.net>
Date:	Tue, 12 May 2009 19:34:45 +0300
From:	Jussi Laako <jussi@...arnerd.net>
To:	Chris Friesen <cfriesen@...tel.com>
CC:	Peter Zijlstra <peterz@...radead.org>,
	James Courtier-Dutton <James@...erbug.co.uk>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	d.faggioli@...up.it
Subject: Re: [RFC][PATCH] Multimedia scheduling class, take 2

Chris Friesen wrote:
> If all you're trying to do is allow different threads to run at
> different nice levels, what about extending sys_setpriority() to take a
> "which" of PRIO_THREAD?  We'd probably have to call the syscall directly
> until/unless libc picks up the new option.

How would this be mapped to a POSIX standard API? I would like to see
something which works straight out with
pthread_setschedprio()/pthread_getschedparam(). In order it to work
correctly it also needs sys_sched_get_priority_min and
sys_sched_get_priority_max.


	- Jussi
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