Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH v1 04/10] perf, tools, record: Clarify help for --switch-output | Date | Mon, 11 Mar 2019 13:24:40 -0700 |
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From: Andi Kleen <ak@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 ... --switch-output[=<signal,size,time>] Switch output when receive SIGUSR2 or cross size,time threshold
After:
% perf report -h ...
--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 <ak@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
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