linux-kernel - Re: [PATCH 3/5] perf tools: Add document for dynamic sort keys

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Date:	Tue, 5 Jan 2016 10:26:01 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH 3/5] perf tools: Add document for dynamic sort keys

On Tue, Jan 05, 2016 at 12:03:45PM +0900, Namhyung Kim wrote:
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka

> ---
>  tools/perf/Documentation/perf-report.txt | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
> index ae7cd91727f6..8a301f6afb37 100644
> --- a/tools/perf/Documentation/perf-report.txt
> +++ b/tools/perf/Documentation/perf-report.txt
> @@ -117,6 +117,30 @@ OPTIONS
>  	And default sort keys are changed to comm, dso_from, symbol_from, dso_to
>  	and symbol_to, see '--branch-stack'.
>  
> +	If the data file has tracepoint event(s), following (dynamic) sort keys
> +	are also available:
> +	trace, trace_fields, [<event>.]<field>[/raw]
> +
> +	- trace: pretty printed trace output in a single column
> +	- trace_fields: fields in tracepoints in separate columns
> +	- <field name>: optional event and field name for a specific field
> +
> +	The last form consists of event and field names.  If event name is
> +	omitted, it searches all events for matching field name.  The matched
> +	field will be shown only for the event has the field.  The event name
> +	supports substring match so user doesn't need to specify full subsystem
> +	and event name everytime.  For example, 'sched:sched_switch' event can
> +	be shortened to 'switch' as long as it's not ambiguous.  Also event can
> +	be specified by its index (starting from 1) preceded by the '%'.
> +	So '%1' is the first event, '%2' is the second, and so on.
> +
> +	The field name can have '/raw' suffix which disables pretty printing
> +	and shows raw field value like hex numbers.  The --raw-trace option
> +	has the same effect for all dynamic sort keys.
> +
> +	The default sort keys are changed to 'trace' if all events in the data
> +	file are tracepoint.
> +
>  -F::
>  --fields=::
>  	Specify output field - multiple keys can be specified in CSV format.
> -- 
> 2.6.4
> 
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