Re: [PATCH 2/2] perf/x86: fix constraints for load latency and precise events

From: Andi Kleen
Date: Thu Jun 19 2014 - 16:56:31 EST


On Thu, Jun 19, 2014 at 05:58:29PM +0200, Stephane Eranian wrote:
> The load latency does not have to be constrained to counter 3
> on any of SNB, IVB, HSW. It operates fine on any PEBS-capable
> counter.
>
> The precise store event for SNB, IVB needs to be on counter 3.
> But on Haswell, precise store is implemented differently and
> the constraint is not needed anymore, so we remove it.

Looks good to me.

-Andi
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