Re: [RFC][PATCH] O(1) Entitlement Based Scheduler

From: Andi Kleen
Date: Wed Mar 03 2004 - 14:49:52 EST


On Wed, 03 Mar 2004 14:45:28 +1100
Peter Williams <peterw@xxxxxxxxxx> wrote:

> Andi Kleen wrote:
> > Peter Williams <peterw@xxxxxxxxxx> writes:
> >
> > One comment on the patches: could you remove the zillions of numerical Kconfig
> > options and just make them sysctls? I don't think it makes any sense
> > to require a reboot to change any of that. And the user is unlikely
> > to have much idea yet on what he wants on them while configuring.
>
> The default initial values should be fine and the default configuration
> allows the scheduling tuning parameters (i.e. half life and time slice
> ) to be changed on a running system via the /proc file system.

I'm running the 2.6.3-full patch on my workstation now. No tuning applied
at all. I reniced the X server to -10. When I have two kernel compiles (without any -j*)
running there is a visible (=not really slow, but long enough to notice something)
delay in responses while typing something in a xterm. In sylpheed there
is the same issue.

The standard scheduler didn't show this that extreme with only two compiles.

-Andi
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