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From: Namhyung Kim <namhyung@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Jiri Olsa <jolsa@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	Andi Kleen <andi@firstfloor.org>, David Ahern <dsahern@gmail.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Wang Nan <wangnan0@huawei.com>
Subject: Re: [PATCHSET 00/10] perf tools: Apply percent-limit to callchains (v2)
Date: Thu, 28 Jan 2016 17:42:34 +0900	[thread overview]
Message-ID: <68DE369C-C716-4CF1-85B6-5841C7E1CF7B@gmail.com> (raw)
In-Reply-To: <20160128081439.GB2322@krava.brq.redhat.com>

On January 28, 2016 5:14:39 PM GMT+09:00, Jiri Olsa <jolsa@redhat.com> wrote:
>On Thu, Jan 28, 2016 at 12:40:47AM +0900, Namhyung Kim wrote:
>> Hello,
>> 
>> This patchset tries to implement percent limit to callchains which
>was
>> requested by Andi Kleen.  For some reason, limiting callchains by
>> (overhead) percentage didn't work well.  This patch fixes it and make
>> --percent-limit also works for callchains as well as hist entries.
>> 
>>  * Changes from v1)
>>   - fix insertion path instead of changing all UI code
>>   - show percent value even on single path (if needed)
>>   - change default callchain percent limit
>>   
>> This is available on 'perf/callchain-limit-v2' branch in my tree:
>> 
>>  
>git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
>> 
>> Any comments are welcome,
>> 
>> Thanks,
>> Namhyung
>> *** BLURB HERE ***
>> 
>> Namhyung Kim (10):
>>   perf hists: Fix min callchain hits calculation
>>   perf hists: Update hists' total period when adding entries
>>   perf report: Apply --percent-limit to callchains also
>>   perf report: Get rid of hist_entry__callchain_fprintf()
>>   perf tools: Pass parent_samples to __callchain__fprintf_graph()
>>   perf report: Fix percent display in callchains on --stdio
>>   perf hists browser: Fix dump to show correct callchain style
>>   perf hists browser: Pass parent_total to callchain print functions
>>   perf hists browser: Fix percent display in callchains
>>   perf tools: Change default calchain percent limit to 0.005%
>
>heya,
>do I get it right that:
>
>'perf report' display all entries, but only callchains above default
>limit
>
>'perf report --percent-limit X' display only entries above limit X plus
>only callchains above limit X
>
>
>thanks,
>jirka

Yes, actually there're two limits and they have different defaults. The --percent-limit sets both limits while -g only sets callchain limit.

Thanks
Namhyung
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

  reply	other threads:[~2016-01-28  8:42 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-27 15:40 [PATCHSET 00/10] perf tools: Apply percent-limit to callchains (v2) Namhyung Kim
2016-01-27 15:40 ` [PATCH 01/10] perf hists: Fix min callchain hits calculation Namhyung Kim
2016-02-03 10:21   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 02/10] perf hists: Update hists' total period when adding entries Namhyung Kim
2016-02-03 10:21   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 03/10] perf report: Apply --percent-limit to callchains also Namhyung Kim
2016-02-01 20:19   ` Arnaldo Carvalho de Melo
2016-02-02 13:05     ` Namhyung Kim
2016-02-02 13:55       ` Arnaldo Carvalho de Melo
2016-02-02 14:15         ` Namhyung Kim
2016-02-02 14:27           ` Arnaldo Carvalho de Melo
2016-02-02 14:35             ` Namhyung Kim
2016-02-02 14:57               ` Arnaldo Carvalho de Melo
2016-02-02 15:03                 ` Namhyung Kim
2016-02-03 10:22   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 04/10] perf report: Get rid of hist_entry__callchain_fprintf() Namhyung Kim
2016-02-03 10:22   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 05/10] perf tools: Pass parent_samples to __callchain__fprintf_graph() Namhyung Kim
2016-02-03 10:22   ` [tip:perf/core] perf callchain: " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 06/10] perf report: Fix percent display in callchains on --stdio Namhyung Kim
2016-02-03 10:22   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 07/10] perf hists browser: Fix dump to show correct callchain style Namhyung Kim
2016-02-03 10:23   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 08/10] perf hists browser: Pass parent_total to callchain print functions Namhyung Kim
2016-02-03 10:23   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [PATCH 09/10] perf hists browser: Fix percent display in callchains Namhyung Kim
2016-02-03 10:24   ` [tip:perf/core] " tip-bot for Namhyung Kim
2016-01-27 15:40 ` [RFC/PATCH 10/10] perf tools: Change default calchain percent limit to 0.005% Namhyung Kim
2016-01-27 16:06   ` Andi Kleen
2016-01-27 23:34     ` Namhyung Kim
2016-01-28  8:14 ` [PATCHSET 00/10] perf tools: Apply percent-limit to callchains (v2) Jiri Olsa
2016-01-28  8:42   ` Namhyung Kim [this message]
2016-01-28  8:16 ` Jiri Olsa
2016-01-28 10:14   ` Namhyung Kim
2016-01-28 10:16     ` Namhyung Kim
2016-01-28 12:12       ` Jiri Olsa
2016-01-28 12:24         ` Namhyung Kim
2016-01-28 19:52           ` Jiri Olsa
2016-01-29 21:00             ` Arnaldo Carvalho de Melo
2016-01-30 13:52               ` Namhyung Kim
2016-02-03 10:24           ` [tip:perf/core] perf report: Don' t show blank lines if entry has no callchain tip-bot for Namhyung Kim

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