linux-kernel - Re: [RFC] perf/x86: PMU IRQ handler issues

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Message-ID: <20140529025655.GA8876@tassilo.jf.intel.com>
Date:	Wed, 28 May 2014 19:56:55 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Dave Hansen <dave.hansen@...el.com>
Cc:	Stephane Eranian <eranian@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"Yan, Zheng" <zheng.z.yan@...el.com>
Subject: Re: [RFC] perf/x86: PMU IRQ handler issues

> actual numbers describing the issues that you're seeing, including the
> ftrace that Andi was asking for?  There are also some handy tracepoints
> for NMI lengths that I stuck in.

Another good thing would be to plot the periods (from perf report -D)

-Andi
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