[linux-audio-dev] sched_setscheduler question ...

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Subject: [linux-audio-dev] sched_setscheduler question ...
From: John Lazzaro (lazzaro_AT_CS.Berkeley.EDU)
Date: Fri Jun 09 2000 - 23:31:07 EEST

Hi everyone,

        I'm looking into adding sched_setscheduler support
to sfront (http://www.cs.berkeley.edu/~lazzaro/sa), and
had a quick question for the list -- 

---

        If there's only one process running on SCHED_FIFO,
and the process wants to let the SCHED_OTHER processes have
a chance at running, what's the best way to do this?      
Experimentally, calling usleep() with a value > 10ms does
it in practice (I assume this is > 1/HZ), but it does enforce
a minimum time delay -- is there a way to get "let SCHED_OTHER
processes that want to run run, then get back to me ASAP" 
behavior? 

	This is basically a way for the application to let
a "control-C" in the shell that creates it to terminate it
once every few minutes, w/o having to go through the hassle
of locating the X server, window manager, xterm, and shell
and setting them all to SCHED_FIFO too. 

---

	Thanks in advance,

						--john lazzaro

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John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley
lazzaro [at] cs [dot] berkeley [dot] edu     www.cs.berkeley.edu/~lazzaro
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