Re: NMI watchdog triggering during load_balance

From: David Ahern
Date: Fri Mar 06 2015 - 10:04:33 EST


On 3/6/15 1:51 AM, Peter Zijlstra wrote:
On Thu, Mar 05, 2015 at 09:05:28PM -0700, David Ahern wrote:
Hi Peter/Mike/Ingo:

Does that make sense or am I off in the weeds?

How much of your story pertains to 3.18? I'm not particularly interested
in anything much older than that.


No. All of the data in the opening email are from 2.6.39. Each kernel (2.6.39, 3.8 and 3.18) has a different performance problem. I will look at 3.18 in depth soon, but from what I can see the fundamental concepts of the load balancing have not changed (e.g., my tracepoints from 2.6.39 still apply to 3.18).

David
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