Re: hackbench regression due to commit 9dfc6e68bfe6e

[Eric Dumazet]

Le jeudi 08 avril 2010 Ã 15:54 +0800, Zhang, Yanmin a Ãcrit :

> If there are 2 nodes in the machine, processes on node 0 will contact MCH of
> node 1 to access memory of node 1. I suspect the MCH of node 1 might enter
> a power-saving mode when all the cpus of node 1 are free. So the transactions
> from MCH 1 to MCH 0 has a larger latency.
> 

Hmm, thanks for the hint, I will investigate this.


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