Messages in this thread | | | Date | Fri, 28 Jun 2013 17:10:48 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 5/8] sched: Favour moving tasks towards the preferred node |
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On Fri, Jun 28, 2013 at 02:45:35PM +0100, Mel Gorman wrote:
> > Also, until I just actually _read_ that function; I assumed it would > > compare p->numa_faults[src_nid] and p->numa_faults[dst_nid]. Because > > even when the dst_nid isn't the preferred nid; it might still have more > > pages than where we currently are. > > > > I tested something like this and also tested it when only taking shared > accesses into account but it performed badly in some cases. I've included > the last patch I tested below for reference but dropped it until I figured > out why it performed badly. I guessed it was due to increased bouncing > due to shared faults but didn't prove it.
Oh, interesting. Yeah it would be good to figure out why that gave funnies.
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