Messages in this thread | | | Date | Fri, 3 Dec 2010 19:00:57 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: [RFC PATCH 2/3] sched: add yield_to function |
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On Fri, Dec 03, 2010 at 02:23:39PM +0100, Peter Zijlstra wrote: > Right, so another approach might be to simply swap the vruntime between > curr and p.
Can't that cause others to stave? For ex: consider a cpu p0 having these tasks:
p0 -> A0 B0 A1
A0/A1 have entered some sort of AB<->BA spin-deadlock, as a result A0 wants to direct yield to A1 which wants to direct yield to A0. If we keep swapping their runtimes, can't it starve B0?
- vatsa
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