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From: Weiping Zhang <zwp10758@gmail.com>
To: acme@redhat.com
Cc: Jiri Olsa <jolsa@redhat.com>,
	peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
	alexander.shishkin@linux.intel.com, namhyung@kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v2] perf cgroup: simplify arguments if track multiple events for a cgroup
Date: Thu, 22 Feb 2018 18:34:08 +0800	[thread overview]
Message-ID: <CAA70yB5TB3mxL1uN-sXvUsf578k+_GWkq1gHgF_HRa_1p770gw@mail.gmail.com> (raw)
In-Reply-To: <20180131092216.GB3313@krava>

2018-01-31 17:22 GMT+08:00 Jiri Olsa <jolsa@redhat.com>:
> On Mon, Jan 29, 2018 at 11:48:09PM +0800, weiping zhang wrote:
>> if use -G with one cgroup and -e with multiple events, only the first
>> event has correct cgroup setting, all events from the second will track
>> system-wide events.
>>
>> if user want track multiple events for a specific cgroup, user must give
>> parameters like follow:
>> $ perf stat -e e1 -e e2 -e e3 -G test,test,test
>> this patch simplify this case, just type one cgroup, like following:
>> $ perf stat -e e1 -e e2 -e e3 -G test
>>
>> $ mkdir -p /sys/fs/cgroup/perf_event/test
>> $ perf stat -e cycles -e cache-misses  -a -I 1000 -G test
>>
>> before:
>>      1.001007226      <not counted>      cycles                    test
>>      1.001007226              7,506      cache-misses
>>
>> after:
>>      1.000834097      <not counted>      cycles                    test
>>      1.000834097      <not counted>      cache-misses              test
>>
>> Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
>
> Acked-by: Jiri Olsa <jolsa@kernel.org>

Hi Arnaldo,

Ping...

  reply	other threads:[~2018-02-22 10:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-29 15:48 [PATCH v2] perf cgroup: simplify arguments if track multiple events for a cgroup weiping zhang
2018-01-29 15:48 ` weiping zhang
2018-01-31  9:22 ` Jiri Olsa
2018-02-22 10:34   ` Weiping Zhang [this message]
2018-02-22 13:02     ` Arnaldo Carvalho de Melo
2018-03-06  6:41 ` [tip:perf/core] perf cgroup: Simplify arguments when tracking multiple events tip-bot for weiping zhang

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