Thread (129 messages) 129 messages, 18 authors, 2012-07-14

Re: [RFC][PATCH 14/26] sched, numa: Numa balancer

From: Peter Zijlstra <peterz@infradead.org>
Date: 2012-07-09 12:40:59
Also in: lkml

On Mon, 2012-07-09 at 14:23 +0200, Peter Zijlstra wrote:
quoted
It is not yet clear to me how and why your code converges.
I don't think it does.. but since the scheduler interaction is fairly
weak it doesn't matter too much from that pov.
That is,.. it slowly moves along with the cpu usage, only if there's a
lot of remote memory allocations (memory pressure) things get funny. 

It'll try and rotate all tasks around a bit trying, but there's no good
solution for a memory hole on one node and a cpu hole on another, you're
going to have to take the remote hits.

Again.. what do we want it to do?

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