[PlanetCCRMA] kernel-rt(PAE) questions

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Sat Dec 5 10:58:04 PST 2009

On Fri, 2009-12-04 at 17:50 -0800, Stephen Stubbs wrote:
> Does using the PAE kernel version on a 1GB memory machine cause a
> noticeable decrease in peformance?

I don't think so, the normal kernel is now PAE by defaul (Fedora's move)
because there is no significant impact. I imagine nothing that you would
be able to notice while scrolling through a web page. 

> In particular, when scrolling down through a webpage that has a lot of
> banners and such with Firefox, I notice a lag that is getting to be
> painful.

It would seem to me that would point more towards rendering in your
graphics card (which might be affected by the kernel drivers for it, of
course). What do you have? Which driver? 

-- Fernando

> So I removed the PAE kernels and went to the standard kernel in Fedora
> 11, with the result that somewhere along the line I broke Jack and
> can't get jackd to come up properly.  (Don't worry about this problem,
> I'll probably do a reinstall of Fedora 11, install the non-PAE kernel,
> and leave the PAE kernels on the system.)
> Just curious,
> Stephen.
> ______________________________________________________________________
> From: Fernando Lopez-Lezcano <nando at ccrma.Stanford.EDU>
> To: Martin Tarenskeen <m.tarenskeen at zonnet.nl>
> Cc: PlanetCCRMA mailinglist <planetccrma at ccrma.Stanford.EDU>
> Sent: Fri, December 4, 2009 12:28:29 PM
> Subject: Re: [PlanetCCRMA] kernel-rt(PAE) questions
> On Fri, 2009-12-04 at 09:44 +0100, Martin Tarenskeen wrote:
> > Hi PlanetCCRMA,
> > 
> > I have installed planetccrma-core for Fedora 12, but the provided 
> > kernel-rtPAE does not run on my Dell D600.
> > No problem, I installed the normal kernel-rt version, which works
> fine.
> > I removed the kernel-rtPAE, which I can't use anyway, using "rpm
> --e 
> > --no-deps kernel-rtPAE" on the commandline.
> > 
> > So far so good.
> > 
> > But everytime planetccrma-core is updated, it re-installs also the 
> > kernel-rtPAE package. No surprise, but is there a way to avoid
> this ?
> Hmmm, I think I will have to rethink the dependencies for
> planetccrma-clore, sorry for the problem. You could of course rpm -e
> planetccrma-core in the meantime, that will not remove the already
> installed packages, and they should upgrade fine with a yum upgrade. 
> What is it that did not work when trying out the rtPAE version?
> >
> -------------------------------------------------------------------------
> > 
> > Another question:
> > While installing or updating the kernel-rt(PAE) package I'm getting
> these 
> > messages:
> > 
> > W: Possible missing firmware ql8100_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware ql2400_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware ql2322_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware ql2300_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware ql2200_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware ql2100_fw.bin for module qla2xxx.ko
> > W: Possible missing firmware aic94xx-seq.fw for module aic94xx.ko
> > 
> > Anything to worry about, or should I just ignore these ?
> You should just ignore them, I think (unless you have a card that uses
> one of those drivers, of course). 

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