Re: [patch 05/24] perfmon: X86 generic code (x86)

[Andi Kleen]

On Thu, Nov 27, 2008 at 02:32:33PM +0100, Thomas Gleixner wrote:
> On Thu, 27 Nov 2008, stephane eranian wrote:
> > That's true for Intel.
> > On AMD64, I think you can get at most one sample out of a irq-off
> > region using IBS.
> 
> Exactly the same amount which you get with the NMI/self_IPI out of an
> irq-off region.

True. It would really need a NMI safe queue. 

-Andi

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