linux-kernel - Re: [BUG] perf: perf sched warning possibly due to clock granularity on AMD

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Message-ID: <1328538403.2482.4.camel@laptop>
Date:	Mon, 06 Feb 2012 15:26:43 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, mingo@...e.hu,
	robert.richter@....com, eric.dumazet@...il.com,
	Borislav Petkov <bp@...64.org>
Subject: Re: [BUG] perf: perf sched warning possibly due to clock
 granularity on AMD

On Mon, 2012-02-06 at 14:25 +0100, Stephane Eranian wrote:
> In summary, two issues:
>   - 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. 

>   - perf should not rely on fine granularity timestamps in the re-ordering code

Uhm, what else is there?

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