On Mon, Mar 11, 2019 at 01:24:40PM -0700, Andi Kleen wrote:
> From: Andi Kleen <a...@linux.intel.com>
>
> The help description for --switch-output looks like there
> are multiple comma separated fields. But it's actually a choice
> of different options. Make it clear and less confusing.
>
> Before:
>
> % perf report -h
s/report/record/
> ...
> --switch-output[=<signal,size,time>]
> Switch output when receive SIGUSR2 or cross
> size,time threshold
>
> After:
>
> % perf report -h
ditto
jirka
> ...
>
> --switch-output[=<signal or size[BKMG] or time[smhd]>]
> Switch output when receiving SIGUSR2 (signal) or
> cross a size or time threshold
>
> Signed-off-by: Andi Kleen <a...@linux.intel.com>
> ---
> tools/perf/builtin-record.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
> index 02d7c40b2d10..e7144a1c1c82 100644
> --- a/tools/perf/builtin-record.c
> +++ b/tools/perf/builtin-record.c
> @@ -1989,8 +1989,8 @@ static struct option __record_options[] = {
> OPT_BOOLEAN(0, "timestamp-boundary", &record.timestamp_boundary,
> "Record timestamp boundary (time of first/last samples)"),
> OPT_STRING_OPTARG_SET(0, "switch-output", &record.switch_output.str,
> - &record.switch_output.set, "signal,size,time",
> - "Switch output when receive SIGUSR2 or cross
> size,time threshold",
> + &record.switch_output.set, "signal or size[BKMG] or
> time[smhd]",
> + "Switch output when receiving SIGUSR2 (signal) or
> cross a size or time threshold",
> "signal"),
> OPT_INTEGER(0, "switch-max-files", &record.switch_output.num_files,
> "Limit number of switch output generated files"),
> --
> 2.20.1
>
