linux-kernel - Re: [PATCH 5/9] perf tools: Introduce 'P' modifier

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Message-ID: <5612BDDC.2080806@gmail.com>
Date:	Mon, 5 Oct 2015 12:13:48 -0600
From:	David Ahern <dsahern@...il.com>
To:	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Liang, Kan" <kan.liang@...el.com>, Don Zickus <dzickus@...hat.com>
Subject: Re: [PATCH 5/9] perf tools: Introduce 'P' modifier

On 10/5/15 12:06 PM, Jiri Olsa wrote:
> The 'P' will cause the event to get maximum possible
> detected precise level.
>
> Following record:
>    $ perf record -e cycles:P ...
>
> will detect maximum precise level for 'cycles' event
> and use it.
>

Does the end result (which precise level is used) get saved to the 
header and displayed to the user properly?

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