linux-kernel - Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

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Date:	Thu, 19 Apr 2007 09:32:17 +0200
From:	Mike Galbraith <efault@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair
	Scheduler [CFS]

On Thu, 2007-04-19 at 09:09 +0200, Ingo Molnar wrote:
> * Mike Galbraith <efault@....de> wrote:
> 
> > With a heavily reniced X (perfectly fine), that should indeed solve my 
> > daily usage pattern nicely (always need godmode for shells, but not 
> > for mozilla and ilk. 50/50 split automatic without renice of entire 
> > gui)
> 
> how about the first-approximation solution i suggested in the previous 
> mail: to add a per UID default nice level? (With this default defaulting 
> to '-10' for all root-owned processes, and defaulting to '0' for 
> everything else.) That would solve most of the current CFS regressions 
> at hand.

That would make my kernel builds etc interfere with my other self's
surfing and whatnot.  With it by EUID, when I'm surfing or whatnot, the
X portion of my Joe-User activity pushes the compile portion of root
down in bandwidth utilization automagically, which is exactly the right
thing, because the root me in not as important as the Joe-User me using
the GUI at that time.  If the idea of X disturbing root upsets some,
they can move X to another UID.  Generally, it seems perfect for here.

	-Mike

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