[K12OSN] How to DRASTICALLY speed up app response on K12LTSP

[Robert Arkiletian]

On 10/5/07, Jim Kronebusch <jim at winonacotter.org> wrote:
> > I have not tested my assumption but I don't think the AS scheduler is
> > what you want on an lstp server. AS is best for a single desktop.
> > Wikipedia explains it better than I can
>
> It looks like Edubuntu defaults to Deadline, here is my output:
>
> jim at ltsp:~$ dmesg | grep scheduler
> [    1.940498] io scheduler noop registered
> [    1.940500] io scheduler anticipatory registered
> [    1.940502] io scheduler deadline registered (default)
> [    1.940545] io scheduler cfq registered
>
> How do I switch?

It's a boot time kernel parameter. edit grub.conf
add elevator=cfq

More info here
http://www.redhat.com/magazine/008jun05/features/schedulers/

-- 
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/
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