| Date | Fri, 5 Mar 2010 17:19:42 +1100 | From | Paul Mackerras <> | Subject | Re: [PATCH 06/14] perf, x86: PEBS infrastructure |
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On Thu, Mar 04, 2010 at 03:00:52PM +0100, Peter Zijlstra wrote:
> Implement a simple PEBS model that always takes a single PEBS event at > a time. This is done so that the interaction with the rest of the > system is as expected (freq adjust, period randomization, lbr). > > Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> > LKML-Reference: <new-submission> > ---
...
> @@ -203,8 +203,9 @@ struct perf_event_attr { > enable_on_exec : 1, /* next exec enables */ > task : 1, /* trace fork/exit */ > watermark : 1, /* wakeup_watermark */ > + precise : 1, /* OoO invariant counter */
Could you explain in a bit more detail what this means?
Also, it would be good to mention the ABI addition in the patch description, and explain it briefly there.
Paul.
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