From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"mingo@elte.hu" <mingo@elte.hu>,
"ak@linux.intel.com" <ak@linux.intel.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung.kim@lge.com>
Subject: Re: [PATCH 0/8] perf: add ability to sample physical data addresses
Date: Tue, 30 Jul 2013 18:16:29 +0200 [thread overview]
Message-ID: <20130730161629.GC32226@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <CABPqkBQFpJjHLYuErcMdxTNKe4-JW_JZfYkEWrX5JHTZmWOqDg@mail.gmail.com>
On Tue, Jul 30, 2013 at 06:09:15PM +0200, Stephane Eranian wrote:
> On Tue, Jul 30, 2013 at 5:52 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> > On Tue, Jul 30, 2013 at 04:21:41PM +0200, Stephane Eranian wrote:
> >> Peter,
> >>
> >> One thing that bothers me with the MMAP2 approach is that
> >> it forces integration into perf.
> >
> > This is a good (TM) thing, yes? ;-)
> >
>
> Well, that's one way to look at it. But I'd like the API to
> be able to support more than one tool easily. If the barrier
> for any advanced analysis is too high from the raw kernel
> API then we will only have one tool. I don't think that sane.
Sure, but any half-way usable profiling will need the existing sideband
data. So I don't think that relying on it for this particular feature is
too much.
next prev parent reply other threads:[~2013-07-30 16:16 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-21 14:20 [PATCH 0/8] perf: add ability to sample physical data addresses Stephane Eranian
2013-06-21 14:20 ` [PATCH 1/8] perf,x86: disable PEBS-LL in intel_pmu_pebs_disable() Stephane Eranian
2013-06-24 8:44 ` Peter Zijlstra
2013-06-26 7:35 ` Stephane Eranian
2013-06-27 9:01 ` [tip:perf/core] perf/x86: Disable " tip-bot for Stephane Eranian
2013-06-21 14:20 ` [PATCH 2/8] perf,x86: drop event->flags and use hw.constraint->flags Stephane Eranian
2013-06-24 8:45 ` Peter Zijlstra
2013-06-26 7:36 ` Stephane Eranian
2013-06-26 10:36 ` Peter Zijlstra
2013-06-27 10:23 ` Stephane Eranian
2013-06-27 10:48 ` Peter Zijlstra
2013-06-27 11:01 ` Stephane Eranian
2013-06-27 11:14 ` Peter Zijlstra
2013-06-27 12:33 ` Stephane Eranian
2013-06-27 14:10 ` Peter Zijlstra
2013-06-21 14:20 ` [PATCH 3/8] perf,x86: add uvirt_to_phys_nmi helper function Stephane Eranian
2013-06-21 14:20 ` [PATCH 4/8] perf: add PERF_SAMPLE_PHYS_ADDR sample type Stephane Eranian
2013-06-21 14:20 ` [PATCH 5/8] perf,x86: add support for PERF_SAMPLE_PHYS_ADDR for PEBS-LL Stephane Eranian
2013-06-21 14:20 ` [PATCH 6/8] perf tools: add infrastructure to handle PERF_SAMPLE_PHYS_ADDR Stephane Eranian
2013-06-21 14:20 ` [PATCH 7/8] perf record: add option to sample physical load/store addresses Stephane Eranian
2013-06-21 14:20 ` [PATCH 8/8] perf mem: add physical addr sampling support Stephane Eranian
2013-06-23 21:58 ` [PATCH 0/8] perf: add ability to sample physical data addresses Jiri Olsa
2013-06-24 8:16 ` Stephane Eranian
2013-06-24 8:45 ` Jiri Olsa
2013-06-24 8:43 ` Peter Zijlstra
2013-06-25 9:59 ` Stephane Eranian
2013-06-25 10:47 ` Peter Zijlstra
2013-06-25 10:51 ` Ingo Molnar
2013-06-26 10:33 ` Peter Zijlstra
2013-06-26 19:10 ` Stephane Eranian
2013-06-28 9:58 ` Peter Zijlstra
2013-07-05 22:48 ` Stephane Eranian
2013-07-08 8:19 ` Peter Zijlstra
2013-07-09 6:02 ` Stephane Eranian
2013-07-30 8:02 ` Stephane Eranian
2013-07-30 8:37 ` Peter Zijlstra
2013-07-30 8:51 ` Stephane Eranian
2013-07-30 9:02 ` Peter Zijlstra
2013-07-30 13:09 ` Stephane Eranian
2013-07-30 14:21 ` Stephane Eranian
2013-07-30 14:50 ` David Ahern
2013-07-30 14:53 ` Stephane Eranian
2013-07-30 14:59 ` David Ahern
2013-07-30 15:52 ` Peter Zijlstra
2013-07-30 16:09 ` Stephane Eranian
2013-07-30 16:16 ` Peter Zijlstra [this message]
2013-06-26 13:29 ` Ingo Molnar
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