Date: Sun, 22 Feb 1998 19:41:57 -0800 From: Mike Smith <mike@smith.net.au> To: Scott Michel <scottm@cs.ucla.edu> Cc: freebsd-multimedia@FreeBSD.ORG, freebsd-current@FreeBSD.ORG Subject: Re: kernel scheduler issues Message-ID: <199802230341.TAA09645@dingo.cdrom.com> In-Reply-To: Your message of "Sun, 22 Feb 1998 19:29:11 PST." <199802230329.TAA00473@mordred.cs.ucla.edu>
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> Has there been/Is there any discussion about changing the kernel > scheduler to support audio (generally multimedia) needs, where > you'd like to temporarily increase a process's priority close to > the end of a audio block playout to decrease the jumps/gaps? > > I know, I haven't done any coding for the kernel and I probably > should sound like I'm bitching about this, but I'm just a little > curious. You probably *should* sound like you're bitching? 8) A carefully-crafted audio system will probably try to use the features documented in rtprio(2) in order to guarantee CPU availability for time-critical activities. In the crudest case, if your issue is a simple audio player application, you can use rtprio(1) to execute the entire application at realtime priority. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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