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

[stephane eranian]

On Thu, Nov 27, 2008 at 2:32 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> 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.
>
Why would you get only one sample per irq-off region if you use NMI?
I would think you could get multiple, depending on your sampling period
and the size of the region.
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