Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1255220

Re: [tip:perf/core] perf tools: Improve call graph documents and help messages

Show all headers | View raw

Hi Ingo,

On Fri, Oct 23, 2015 at 6:03 PM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * tip-bot for Namhyung Kim <tipbot@zytor.com> wrote:
>
>> Commit-ID:  76a26549eb367f683fbb394b7246bef5dc665f8c
>> Gitweb:     http://git.kernel.org/tip/76a26549eb367f683fbb394b7246bef5dc665f8c
>> Author:     Namhyung Kim <namhyung@kernel.org>
>> AuthorDate: Thu, 22 Oct 2015 23:28:32 +0900
>> Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
>> CommitDate: Thu, 22 Oct 2015 16:23:19 -0300
>>
>> perf tools: Improve call graph documents and help messages
>>
>> The --call-graph option is complex so we should provide better guide for
>> users.  Also change help message to be consistent with config option
>> names.  Now perf top will show help like below:
>>
>>   $ perf top --call-graph
>>     Error: option `call-graph' requires a value
>>
>>    Usage: perf top [<options>]
>>
>>       --call-graph <record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]>
>>            setup and enables call-graph (stack chain/backtrace):
>>
>>               record_mode:    call graph recording mode (fp|dwarf|lbr)
>>               record_size:    if record_mode is 'dwarf', max size of stack recording (<bytes>)
>>                               default: 8192 (bytes)
>>               print_type:     call graph printing style (graph|flat|fractal|none)
>>               threshold:      minimum call graph inclusion threshold (<percent>)
>>               print_limit:    maximum number of call graph entry (<number>)
>>               order:          call graph order (caller|callee)
>>               sort_key:       call graph sort key (function|address)
>>               branch:         include last branch info to call graph (branch)
>
> Btw., how is the last line to be interpreted? Is the 'branch' value 0/1? If yes
> then the text should probably say so? Or does the string 'branch' have to be used?

Yep, the string 'branch' should be used.

Thanks,
Namhyung
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 1/2] perf tools: Setup pager when printing usage and help Namhyung Kim <namhyung@kernel.org> - 2015-10-22 16:30 +0200
  [PATCH 2/2] perf tools: Improve call graph documents and help messages Namhyung Kim <namhyung@kernel.org> - 2015-10-22 16:30 +0200
    Re: [PATCH 2/2] perf tools: Improve call graph documents and help  messages Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-22 16:50 +0200
      Re: [PATCH 2/2] perf tools: Improve call graph documents and help messages Namhyung Kim <namhyung@kernel.org> - 2015-10-22 18:10 +0200
        Re: [PATCH 2/2] perf tools: Improve call graph documents and help  messages Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-22 18:30 +0200
    Re: [PATCH 2/2] perf tools: Improve call graph documents and help  messages Frederic Weisbecker <fweisbec@gmail.com> - 2015-10-22 18:30 +0200
    Re: [PATCH 2/2] perf tools: Improve call graph documents and help  messages Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-22 20:40 +0200
    [tip:perf/core] perf tools:   Improve call graph documents and help messages tip-bot for Namhyung Kim <tipbot@zytor.com> - 2015-10-23 10:40 +0200
      Re: [tip:perf/core] perf tools: Improve call graph documents and  help messages Ingo Molnar <mingo@kernel.org> - 2015-10-23 11:10 +0200
        Re: [tip:perf/core] perf tools: Improve call graph documents and help messages Namhyung Kim <namhyung@kernel.org> - 2015-10-24 18:00 +0200
          Re: [tip:perf/core] perf tools: Improve call graph documents and  help messages Ingo Molnar <mingo@kernel.org> - 2015-10-25 10:20 +0100
  Re: [PATCH 1/2] perf tools: Setup pager when printing usage and help Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-22 16:50 +0200
    Re: [PATCH 1/2] perf tools: Setup pager when printing usage and help Namhyung Kim <namhyung@kernel.org> - 2015-10-22 18:00 +0200

csiph-web