linux-kernel - Re: [PATCH 0/4] perf: add support for profiling jitted code

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Message-ID: <20150211161516.GI2896@worktop.programming.kicks-ass.net>
Date:	Wed, 11 Feb 2015 17:15:16 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Rose Belcher <cel@...ibm.com>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	John Mccutchan <johnmccutchan@...gle.com>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 0/4] perf: add support for profiling jitted code

On Wed, Feb 11, 2015 at 08:18:37AM -0500, Stephane Eranian wrote:

> But, we need a portable solution, there are jitted environment on other
> architectures.

Yeah, I'm aware of that. But the time people are not liking any of those
patches.

The thing that seems to have most traction is something like

  lkml.kernel.org/r/20150211161256.GH2896@...ktop.programming.kicks-ass.net

Which would basically make the trace clock be CLOCK_MONOTONIC.
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