From: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: Re: [PATCH 8/9] perf top: Add --all-cgroups option
Date: Fri, 27 Mar 2020 13:35:43 -0300 [thread overview]
Message-ID: <20200327163543.GB19927@kernel.org> (raw)
In-Reply-To: <20200325124536.2800725-9-namhyung@kernel.org>
Em Wed, Mar 25, 2020 at 09:45:35PM +0900, Namhyung Kim escreveu:
> 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.
s/report/top/g in this case, and I added:
Committer testing:
Use:
# perf top --all-cgroups -s cgroup_id,cgroup,pid
- Arnaldo
> 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 324b6b53c86b..ddab103af8c7 100644
> --- a/tools/perf/Documentation/perf-top.txt
> +++ b/tools/perf/Documentation/perf-top.txt
> @@ -272,6 +272,10 @@ Default is to monitor all CPUS.
> Record events of type PERF_RECORD_NAMESPACES and display it with the
> 'cgroup_id' sort key.
>
> +--all-cgroups::
> + Record events of type PERF_RECORD_CGROUP and display it with the
> + 'cgroup' sort key.
> +
> --switch-on EVENT_NAME::
> Only consider events after this event is found.
>
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index d2539b793f9d..56b2dd0db88e 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -1246,6 +1246,8 @@ static int __cmd_top(struct perf_top *top)
>
> if (opts->record_namespaces)
> top->tool.namespace_events = true;
> + if (opts->record_cgroup)
> + top->tool.cgroup_events = true;
>
> ret = perf_event__synthesize_bpf_events(top->session, perf_event__process,
> &top->session->machines.host,
> @@ -1253,6 +1255,11 @@ static int __cmd_top(struct perf_top *top)
> if (ret < 0)
> pr_debug("Couldn't synthesize BPF events: Pre-existing BPF programs won't have symbols resolved.\n");
>
> + ret = perf_event__synthesize_cgroups(&top->tool, perf_event__process,
> + &top->session->machines.host);
> + if (ret < 0)
> + pr_debug("Couldn't synthesize cgroup events.\n");
> +
> machine__synthesize_threads(&top->session->machines.host, &opts->target,
> top->evlist->core.threads, false,
> top->nr_threads_synthesize);
> @@ -1545,6 +1552,8 @@ int cmd_top(int argc, const char **argv)
> "number of thread to run event synthesize"),
> OPT_BOOLEAN(0, "namespaces", &opts->record_namespaces,
> "Record namespaces events"),
> + OPT_BOOLEAN(0, "all-cgroups", &opts->record_cgroup,
> + "Record cgroup events"),
> OPTS_EVSWITCH(&top.evswitch),
> OPT_END()
> };
> --
> 2.25.1.696.g5e7596f4ac-goog
>
--
- Arnaldo
next prev parent reply other threads:[~2020-03-27 16:35 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-25 12:45 [PATCHSET 0/9] perf: Improve cgroup profiling (v6) Namhyung Kim
2020-03-25 12:45 ` [PATCH 1/9] perf/core: Add PERF_RECORD_CGROUP event Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 2/9] perf/core: Add PERF_SAMPLE_CGROUP feature Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 3/9] perf tools: Basic support for CGROUP event Namhyung Kim
2020-03-27 14:06 ` Arnaldo Carvalho de Melo
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 4/9] perf tools: Maintain cgroup hierarchy Namhyung Kim
2020-04-03 12:36 ` Arnaldo Carvalho de Melo
2020-04-04 1:29 ` Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] perf python: Include rwsem.c in the pythong biding tip-bot2 for Arnaldo Carvalho de Melo
2020-04-04 8:41 ` [tip: perf/urgent] perf cgroup: Maintain cgroup hierarchy tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 5/9] perf report: Add 'cgroup' sort key Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 6/9] perf record: Support synthesizing cgroup events Namhyung Kim
2020-03-30 16:30 ` Arnaldo Carvalho de Melo
2020-03-30 16:43 ` Arnaldo Carvalho de Melo
2020-03-31 16:04 ` Arnaldo Carvalho de Melo
2020-04-01 23:22 ` Namhyung Kim
2020-04-02 1:52 ` [PATCH] perf tools: Add file-handle feature test Namhyung Kim
2020-04-02 15:37 ` Arnaldo Carvalho de Melo
2020-04-02 15:46 ` Arnaldo Carvalho de Melo
2020-04-02 18:37 ` Arnaldo Carvalho de Melo
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] perf record: Support synthesizing cgroup events tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 7/9] perf record: Add --all-cgroups option Namhyung Kim
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 8/9] perf top: " Namhyung Kim
2020-03-27 16:35 ` Arnaldo Carvalho de Melo [this message]
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 12:45 ` [PATCH 9/9] perf script: Add --show-cgroup-events option Namhyung Kim
2020-03-27 16:39 ` Arnaldo Carvalho de Melo
2020-04-04 8:41 ` [tip: perf/urgent] " tip-bot2 for Namhyung Kim
2020-03-25 13:05 ` [PATCHSET 0/9] perf: Improve cgroup profiling (v6) Arnaldo Carvalho de Melo
2020-03-25 13:19 ` Namhyung Kim
-- strict thread matches above, loose matches on Subject: below --
2020-01-07 13:34 [PATCHSET 0/9] perf: Improve cgroup profiling (v4) Namhyung Kim
2020-01-07 13:35 ` [PATCH 8/9] perf top: Add --all-cgroups option Namhyung Kim
2020-01-08 22:24 ` Jiri Olsa
2020-01-09 7:55 ` Namhyung Kim
2020-01-09 8:18 ` Jiri Olsa
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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