Re: [patch] "HT scheduler", sched-2.5.63-B3

Alan Cox (
06 Mar 2003 18:49:57 +0000

On Thu, 2003-03-06 at 17:11, Ingo Molnar wrote:
> X is special. Especially in Andrew's wild-window-dragging experiment X is
> a pure CPU-bound task that just eats CPU cycles no end. There _only_ thing
> that makes it special is that there's a human looking at the output of the
> X client. This is information that is simply not available to the kernel.

Just like a streaming video server
Just like a 3D game using DRI

X isnt special at all. Research OS people have done stuff like time transfers
but I've not seen that in a production OS. In that situation an interactive
task blocking on a server hands on some of its interactiveness to whoever
services the request.

Thats not a trivial Linux addition however

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