linux-kernel - Re: [PATCH] perf tools: Fix JIT profiling on heap

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Message-ID: <CAM9d7ciasrmauzZCQmFKkeNhdOjvi4h_d9ziis_RqUM_eH5M_g@mail.gmail.com>
Date:	Wed, 22 Jan 2014 23:50:35 +0000
From:	Namhyung Kim <namhyung@...nel.org>
To:	Gaurav Jain <gjain@...com>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH] perf tools: Fix JIT profiling on heap

Hi Gaurav,

On Wed, Jan 22, 2014 at 11:43 PM, Gaurav Jain <gjain@...com> wrote:
>> On Jan 17, 2014, at 2:44 AM, "Namhyung Kim" <namhyung@...nel.org> wrote:
>> What I wasn't sure is whether JIT program also produces some dynamic data.
>> And I think only perf mem command cares about data mappings, no?
>
> I don't think we generate symbols for dynamic data at the moment. There may be uses in the future. I don't know about other JIT programs.
>
> If we can include this behaviour it would be great, but I don't have a way to test it. I'd guess if somebody had a valid use case, they would report the issue. Otherwise, the patch as you've written it works great for me.

Thanks for confirming it and testing the patch!

Thanks,
Namhyung
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