On Mon, 9 Dec 2013 11:02:49 +0100, Jiri Olsa wrote:
> Currently the perf.data header is always displayed for stdio
> output, which is no always useful.
>
> Disabling header information by default and adding following
> options to control header output:
> --header - display header information (old default)
> --header-only - display header information only w/o further
> processing, forces stdio output
>
[SNIP]
> +--header
> + Show perf.data header.
This explanation looks too terse. How about this?
Show header information in the perf.data file. This includes
various information like hostname, os and perf version, cpu/mem
info, perf command line, event list and so on. Currently only
--stdio output supports this feature.
Thanks,
Namhyung
> +
> +--header-only
> + Show only perf.data header (forces --stdio).
> +
> SEE ALSO
> --------
> linkperf:perf-stat[1], linkperf:perf-annotate[1]
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