Date: Thu, 24 Apr 2003 22:55:21 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Andre Guibert de Bruet <andy@siliconlandmark.com> Cc: freebsd-current@freebsd.org Subject: Re: Renice idle process to -20 causes hang. Message-ID: <20030424224359.G25147@gamplex.bde.org> In-Reply-To: <20030423153316.A59991@alpha.siliconlandmark.com> References: <XFMail.20030423135511.jhb@FreeBSD.org> <20030423153316.A59991@alpha.siliconlandmark.com>
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On Wed, 23 Apr 2003, Andre Guibert de Bruet wrote: > On the topic of nice for the idle process(es), shouldn't they be running > with the highest allowable value (+20)? Though this has no technical > impact, couldn't they get that nice value for aesthetic purposes? No, since they have a different scheduling policy than all normal niced processes and don't behave like nice -20 (nice = +20) processes. They sort of behave like nice -21 through nice -52 processes. top(1) has a hack which are supposed to display them as having the fake nice values 21 through 52, but it is broken in -current by much the same kernel changes that break the display of rtprio values in ps(1) (see my other reply to this thread). Bruce
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