Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2

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From: Ingo Molnar
Date: Tuesday, March 13, 2007 - 1:18 am

* Mike Galbraith <efault@gmx.de> wrote:


i have to agree with Mike that this is a material regression that cannot 
be talked around.

Con, we want RSDL to /improve/ interactivity. Having new scheduler 
interactivity logic that behaves /worse/ in the presence of CPU hogs, 
which CPU hogs are even reniced to +5, than the current interactivity 
code, is i think a non-starter. Could you try to fix this, please? Good 
interactivity in the presence of CPU hogs (be them default nice level or 
nice +5) is _the_ most important scheduler interactivity metric. 
Anything else is really secondary.

	Ingo

ps. please be nice to each other - both of you are long-time
    scheduler contributors who did lots of cool stuff :-)
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Messages in current thread:
Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2, Radoslaw Szkodzinski, (Sun Mar 11, 11:58 pm)
Re: [ck] Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2 ..., Rodney Gordon II, (Mon Mar 12, 11:08 pm)
Re: [ck] Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for ..., Mike Galbraith, (Mon Mar 12, 11:30 pm)
Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2, Ingo Molnar, (Tue Mar 13, 1:18 am)
Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2, Valdis.Kletnieks, (Tue Mar 13, 10:21 am)
Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2, Jeremy Fitzhardinge, (Tue Mar 13, 10:59 am)
Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2, Jeremy Fitzhardinge, (Tue Mar 13, 1:10 pm)