From: Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
Cc: Namhyung Kim <namhyung-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Richard Cochran
<richardcochran-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>,
Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
Arnaldo Carvalho de Melo
<acme-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
John Stultz <john.stultz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.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-5wv7dgnIgG8@public.gmane.org> 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
WARNING: multiple messages have this Message-ID (diff)
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
next prev parent reply other threads:[~2014-09-26 11:24 UTC|newest]
Thread overview: 28+ 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
[not found] ` <1411491787-25938-2-git-send-email-pawel.moll-5wv7dgnIgG8@public.gmane.org>
2014-09-24 5:41 ` Namhyung Kim
2014-09-24 5:41 ` Namhyung Kim
[not found] ` <87sijhk21x.fsf-vfBCOVm4yAnB69T4xOojN9BPR1lH4CV8@public.gmane.org>
2014-09-25 10:49 ` Pawel Moll
2014-09-25 10:49 ` Pawel Moll
2014-09-26 6:16 ` Namhyung Kim
[not found] ` <8738bekith.fsf-vfBCOVm4yAnB69T4xOojN9BPR1lH4CV8@public.gmane.org>
2014-09-26 10:58 ` Pawel Moll
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
2014-09-26 19:25 ` David Ahern
2014-09-29 14:47 ` Pawel Moll
2014-09-26 6:16 ` Namhyung Kim
2014-09-23 17:03 ` [PATCH v2 2/2] perf: Userspace event Pawel Moll
[not found] ` <1411491787-25938-3-git-send-email-pawel.moll-5wv7dgnIgG8@public.gmane.org>
2014-09-24 6:07 ` Namhyung Kim
2014-09-24 6:07 ` Namhyung Kim
[not found] ` <87oau5k0u9.fsf-vfBCOVm4yAnB69T4xOojN9BPR1lH4CV8@public.gmane.org>
2014-09-24 7:20 ` Ingo Molnar
2014-09-24 7:20 ` Ingo Molnar
[not found] ` <20140924072017.GC990-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-09-26 6:21 ` Namhyung Kim
2014-09-26 6:21 ` Namhyung Kim
2014-09-26 10:59 ` Pawel Moll
2014-09-26 11:24 ` Ingo Molnar [this message]
2014-09-26 11:24 ` Ingo Molnar
2014-09-25 12:45 ` Pawel Moll
2014-09-26 6:23 ` Namhyung Kim
2014-09-26 6:23 ` Namhyung Kim
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