Re: [PATCH 08/19] perf c2c: Shared data analyser

[Andi Kleen]

> Hmm, so based on Andi's reply, I am assuming you are running on a Westmere
> (or Nehalem) due to the lack of mem-stores.
> 
> If you don't have mem-stores, this tool isn't going to work.  The tool can
> only detect contention when sampling reads _and_ writes to the same
> addresses.

On these CPUs you could simply sample on HITM. You won't get addresses,
but at least IPs and call stacks.

-Andi
--
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/