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

From: Andi Kleen
Date: Thu Nov 27 2008 - 07:36:20 EST


> That's true for Intel.
> On AMD64, I think you can get at most one sample out of a irq-off
> region using IBS.

Assuming that the irqs off regions are not too long (and that's
usually the case) that should be enough, shouldn't it?

Sure there are still CPUs with neither IBS or PEBS.

-Andi

--
ak@xxxxxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/