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SubjectRe: [PATCH] perf, x86: Enable PEBS mode automatically for mem-{loads,stores} v3
On Thu, Jul 18, 2013 at 04:03:39PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> [The patch to enable this in the user tools has been sent separately]
>
> With the earlier patches to automatically try cpu// and add
> a precise sys attribute, we can now enable PEBS for the mem-loads,
> mem-stores events everywhere.
>
> This allows to use
>
> perf record -e mem-loads ...
>
> instead of
>
> perf record -e cpu/mem-loads/p ...
>
> Always use precise=2 even though it is costly pre-Haswell

This Changelog fails to give a reason _why_ we'd want to do this.


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