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SubjectRe: [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@kernel.org>

Acked-by: Jiri Olsa <jolsa@kernel.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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