Re: [PATCH] x86 idle: repair large-server 50-watt idle-powerregression

[Peter Zijlstra]

On Thu, Dec 19, 2013 at 06:25:35PM +0100, Peter Zijlstra wrote:
> That said, I would find it very strange indeed if a CLFLUSH doesn't also
> flush the store buffer.

OK, it explicitly states it does not do that and you indeed need an
mfence before the clflush.


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