Re: [BUG] perf: perf sched warning possibly due to clock granularityon AMD

From: Stephane Eranian
Date: Mon Feb 06 2012 - 09:31:02 EST

On Mon, Feb 6, 2012 at 3:26 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> On Mon, 2012-02-06 at 14:25 +0100, Stephane Eranian wrote:
>> In summary, two issues:
>> Â - Why is sched_clock_stable not set or even tested on recent AMD systems?
> I'll leave that for Robert to answer, also added Boris to the CC, him
> know AMD bits too.
Ok, good.

>> Â - perf should not rely on fine granularity timestamps in the re-ordering code
> Uhm, what else is there?
I understand your point. I don't quite understand what the code is
supposed to do for odered
samples. I'd like Arnaldo to explain this warning first.
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