linux-kernel - Re: [ck] RSDL v0.30 cpu scheduler for mainline kernels

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Date:	Tue, 13 Mar 2007 16:02:23 -0400
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Chris Friesen" <cfriesen@...tel.com>
Cc:	"Ash Milsted" <thatistosayiseenem@...ab.com>,
	"Con Kolivas" <kernel@...ivas.org>,
	"linux kernel mailing list" <linux-kernel@...r.kernel.org>,
	"ck list" <ck@....kolivas.org>
Subject: Re: [ck] RSDL v0.30 cpu scheduler for mainline kernels

On 3/13/07, Chris Friesen <cfriesen@...tel.com> wrote:
> Lee Revell wrote:
>
> > Sounds like Wengophone is broken.  It should be using RT threads for
> > time critical work, as JACK and Ardour2 are doing.
>
> If the app has root privileges to set RT policy, then it could also set
> deeply negative nice values as well.
>
> Doesn't reallly help the regular user with no privileges.

Well this was supposed to be solved by RLIMIT_NICE and RLIMIT_RTPRIO
which went into mainline about a year ago but distros have been very
slow to pick up the new PAM, glibc and bash packages.  We don't have a
clear picture yet of what defaults the distros will ship.

Lee
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