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

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Message-ID: <alpine.LFD.2.00.0811271430470.3325@localhost.localdomain>
Date:	Thu, 27 Nov 2008 14:32:33 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	eranian@...il.com
cc:	Andi Kleen <andi@...stfloor.org>,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...e.hu, x86@...nel.org, sfr@...b.auug.org.au
Subject: Re: [patch 05/24] perfmon: X86 generic code (x86)

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.
 
Thanks,

	tglx
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