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From: Ingo Molnar <mingo@kernel.org>
To: Pawel Moll <pawel.moll@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>,
	Richard Cochran <richardcochran@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Paul Mackerras <paulus@samba.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	John Stultz <john.stultz@linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-api@vger.kernel.org" <linux-api@vger.kernel.org>
Subject: Re: [PATCH v2 2/2] perf: Userspace event
Date: Fri, 26 Sep 2014 13:24:24 +0200	[thread overview]
Message-ID: <20140926112424.GC9870@gmail.com> (raw)
In-Reply-To: <1411729190.3852.21.camel@hornet>


* Pawel Moll <pawel.moll@arm.com> wrote:

> On Fri, 2014-09-26 at 07:21 +0100, Namhyung Kim wrote:
>
> > It looks like what trace-marker in ftrace does..  We might 
> > connect output of the trace marker into a perf event somehow.
> 
> I can probably trace_marker's write handler do the same as the 
> new prctl() would do. [...]

Please keep this new facility separate, so that !ftrace kernels 
that have perf events enabled still have this facility, etc.

Thanks,

	Ingo

  reply	other threads:[~2014-09-26 11:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-23 17:03 [PATCH v2 0/2] perf: User/kernel time correlation and event generation Pawel Moll
2014-09-23 17:03 ` [PATCH v2 1/2] perf: Add sampling of the raw monotonic clock Pawel Moll
2014-09-24  5:41   ` Namhyung Kim
2014-09-25 10:49     ` Pawel Moll
2014-09-26  6:16       ` Namhyung Kim
2014-09-26 10:58         ` Pawel Moll
2014-09-26 14:38           ` Namhyung Kim
2014-09-26 15:05             ` Pawel Moll
2014-09-26 19:25               ` David Ahern
2014-09-29 14:47                 ` Pawel Moll
2014-09-23 17:03 ` [PATCH v2 2/2] perf: Userspace event Pawel Moll
2014-09-24  6:07   ` Namhyung Kim
2014-09-24  7:20     ` Ingo Molnar
2014-09-26  6:21       ` Namhyung Kim
2014-09-26 10:59         ` Pawel Moll
2014-09-26 11:24           ` Ingo Molnar [this message]
2014-09-25 12:45     ` Pawel Moll
2014-09-26  6:23       ` Namhyung Kim

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