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Date: Sun, 18 Mar 2007 00:35:00 -0700 From: Bill Huey (hui) <billh@...ppy.monkey.org> To: Mike Galbraith <efault@....de> Cc: Willy Tarreau <w@....eu>, Linus Torvalds <torvalds@...ux-foundation.org>, William Lee Irwin III <wli@...omorphy.com>, Avi Kivity <avi@...o.co.il>, Ingo Molnar <mingo@...e.hu>, Con Kolivas <kernel@...ivas.org>, ck@....kolivas.org, Serge Belyshev <belyshev@...ni.sinp.msu.ru>, Al Boldi <a1426z@...ab.com>, linux-kernel@...r.kernel.org, Nicholas Miell <nmiell@...cast.net>, Andrew Morton <akpm@...ux-foundation.org>, "Bill Huey (hui)" <billh@...ppy.monkey.org> Subject: Re: is RSDL an "unfair" scheduler too? On Sun, Mar 18, 2007 at 07:37:02AM +0100, Mike Galbraith wrote: > On Sat, 2007-03-17 at 23:09 -0700, Bill Huey wrote: > > > Like I've said in a previous email, SGI schedulers have an interactive > > term in addition to the normal "nice" values. If RSDL ends up being too > > rigid for desktop use, then this might be a good idea to explore in > > addition to priority manipulation. > > I've done that already (ain't perfect yet, maybe never be). The hard > part is making it automatic, and not ruining the good side of RSDL in > the process. I can't fully qualify what aspects of the X server that's creating this problem. More experimentation is needed (various display drivers, etc...) should be played with to see what kind of problematic situations arise. It's a bit too new with too few users to know what are the specific problems just yet. Your case is too sparse for it to be an completely exhaustive exploration of what's failing with this scheduler. There's a policy decision that needs to be made of whether adding another term to the scheduler calcuation is blessed or not. My opinion is that is should be. Meanwhile, we should experiment more with different configurations. bill - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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