From: Jiri Olsa <jolsa@redhat.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Mark Rutland <mark.rutland@arm.com>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users <linux-perf-users@vger.kernel.org>
Subject: Re: [PATCH 8/9] perf top: Add --all-cgroups option
Date: Thu, 9 Jan 2020 09:18:52 +0100 [thread overview]
Message-ID: <20200109081852.GB52936@krava> (raw)
In-Reply-To: <CAM9d7ch7t9GDu=emb9MYdTSB8hPb0adAy1iOdjyXSXVXTpGBFg@mail.gmail.com>
On Thu, Jan 09, 2020 at 04:55:21PM +0900, Namhyung Kim wrote:
> On Thu, Jan 9, 2020 at 7:25 AM Jiri Olsa <jolsa@redhat.com> wrote:
> >
> > On Tue, Jan 07, 2020 at 10:35:00PM +0900, Namhyung Kim wrote:
> > > The --all-cgroups option is to enable cgroup profiling support. It
> > > tells kernel to record CGROUP events in the ring buffer so that perf
> > > report can identify task/cgroup association later.
> > >
> > > Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> > > ---
> > > tools/perf/Documentation/perf-top.txt | 4 ++++
> > > tools/perf/builtin-top.c | 9 +++++++++
> > > 2 files changed, 13 insertions(+)
> > >
> > > diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
> > > index 5596129a71cf..c75507f50071 100644
> > > --- a/tools/perf/Documentation/perf-top.txt
> > > +++ b/tools/perf/Documentation/perf-top.txt
> > > @@ -266,6 +266,10 @@ Default is to monitor all CPUS.
> > > Record events of type PERF_RECORD_NAMESPACES and display it with the
> > > 'cgroup_id' sort key.
> > >
> > > +--cgroup::
> > > + Record events of type PERF_RECORD_CGROUP and display it with the
> > > + 'cgroup' sort key.
> >
> > should be '--all-cgroups' ?
>
> Oops, you're right.
>
> >
> > anyway, we dont have '--cgroups', why not use just this?
>
> I chose it for consistency since perf record has '--cgroup' option.
I see.. and we have that substring recognition so I suppose --cgroups
would screw the existing --cgroup option, ok
jirka
next prev parent reply other threads:[~2020-01-09 8:19 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-07 13:34 [PATCHSET 0/9] perf: Improve cgroup profiling (v4) Namhyung Kim
2020-01-07 13:34 ` [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event Namhyung Kim
2020-01-07 13:34 ` [PATCH 2/9] perf/core: Add PERF_SAMPLE_CGROUP feature Namhyung Kim
2020-01-07 13:34 ` [PATCH 3/9] perf tools: Basic support for CGROUP event Namhyung Kim
2020-01-07 13:34 ` [PATCH 4/9] perf tools: Maintain cgroup hierarchy Namhyung Kim
2020-01-08 21:52 ` Jiri Olsa
2020-01-09 0:51 ` Namhyung Kim
2020-01-20 13:57 ` Namhyung Kim
2020-01-21 9:42 ` Jiri Olsa
2020-02-17 15:46 ` Arnaldo Carvalho de Melo
2020-02-17 19:22 ` Namhyung Kim
2020-01-08 22:01 ` Jiri Olsa
2020-01-09 0:55 ` Namhyung Kim
2020-01-07 13:34 ` [PATCH 5/9] perf report: Add 'cgroup' sort key Namhyung Kim
2020-01-07 13:34 ` [PATCH 6/9] perf record: Support synthesizing cgroup events Namhyung Kim
2020-01-08 22:08 ` Jiri Olsa
2020-01-09 5:19 ` Namhyung Kim
2020-01-08 22:18 ` Jiri Olsa
2020-01-09 7:50 ` Namhyung Kim
2020-01-08 22:21 ` Jiri Olsa
2020-01-09 7:51 ` Namhyung Kim
2020-01-07 13:34 ` [PATCH 7/9] perf record: Add --all-cgroups option Namhyung Kim
2020-01-07 13:35 ` [PATCH 8/9] perf top: " Namhyung Kim
2020-01-08 22:24 ` Jiri Olsa
2020-01-09 7:55 ` Namhyung Kim
2020-01-09 8:18 ` Jiri Olsa [this message]
2020-01-07 13:35 ` [PATCH 9/9] perf script: Add --show-cgroup-events option Namhyung Kim
-- strict thread matches above, loose matches on Subject: below --
2020-03-25 12:45 [PATCHSET 0/9] perf: Improve cgroup profiling (v6) Namhyung Kim
2020-03-25 12:45 ` [PATCH 8/9] perf top: Add --all-cgroups option Namhyung Kim
2020-03-27 16:35 ` Arnaldo Carvalho de Melo
2019-12-23 6:07 [PATCHSET 0/9] perf: Improve cgroup profiling (v3) Namhyung Kim
2019-12-23 6:07 ` [PATCH 8/9] perf top: Add --all-cgroups option Namhyung Kim
2019-12-20 4:32 [PATCHSET 0/9] perf: Improve cgroup profiling (v2) Namhyung Kim
2019-12-20 4:32 ` [PATCH 8/9] perf top: Add --all-cgroups option Namhyung Kim
2019-08-28 7:31 [PATCHSET 0/9] perf: Improve cgroup profiling (v1) Namhyung Kim
2019-08-28 7:31 ` [PATCH 8/9] perf top: Add --all-cgroups option Namhyung Kim
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