Re: [PATCH 2/2] perf, x86: Don't mark DataLA addresses as store

From: Stephane Eranian
Date: Mon Jul 14 2014 - 18:08:42 EST


On Mon, Jul 14, 2014 at 9:24 PM, Andi Kleen <ak@xxxxxxxxxxxxxxx> wrote:
>> You could do better if you tagged the event during setup as load vs. store.
>> And then you could simply propagate the flag to the data source struct.
> This would require listing all PEBS events in the table again.
> The whole point of the other patch was to get rid of that.
> Besides it wouldn't work for a range of events (like UOPS_RETIRED.ALL)
I have a problem with this patch.

It makes: perf mem -t store rec record OP_NA for the store.
It was recording OP_STORE before.

I think we need to keep LD/ST info. This is useful for analysis
especially if we collect loads/stores simultaneously.

Was working before for the mem-loads, mem-stores events.
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