On Mon, Oct 26, 2020 at 05:27:37PM -0700, Andi Kleen wrote:
> Add support for the -x, option to enable CSV output with perf stat
> report. Useful to parse the information with other programs.
>
> % perf stat record --quiet -a -I 1000 sleep 5
> % perf stat report -x,
> 1.000838672,4003.55,msec,cpu-clock,4003548736,100.00,,
> 1.000838672,11243,,context-switches,4003631885,100.00,0.003,M/sec
> 1.000838672,1682,,cpu-migrations,4003672150,100.00,0.420,K/sec
> 1.000838672,13244,,page-faults,4003697471,100.00,0.003,M/sec
> 1.000838672,2953214077,,cycles,4003715495,100.00,0.738,GHz
> 1.000838672,4380820799,,instructions,4003738270,100.00,1.48,insn per
> cycle
> 1.000838672,809865653,,branches,4003760616,100.00,202.287,M/sec
> 1.000838672,12439843,,branch-misses,4003780785,100.00,1.54,of all
> branches
> ...
>
> Signed-off-by: Andi Kleen
> ---
> tools/perf/builtin-stat.c | 7 +++
> 1 file changed, 7 insertions(+)
>
> diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> index 743fe47e7a88..31e7bd877f1d 100644
> --- a/tools/perf/builtin-stat.c
> +++ b/tools/perf/builtin-stat.c
> @@ -1988,6 +1988,8 @@ static int __cmd_report(int argc, const char **argv)
>"aggregate counts per numa node", AGGR_NODE),
> OPT_SET_UINT('A', "no-aggr", _stat.aggr_mode,
>"disable CPU count aggregation", AGGR_NONE),
> + OPT_STRING('x', "field-separator", _config.csv_sep, "separator",
> +"print counts with custom separator"),
> OPT_END()
> };
> struct stat st;
> @@ -2002,6 +2004,11 @@ static int __cmd_report(int argc, const char **argv)
> input_name = "perf.data";
> }
>
> + if (stat_config.csv_sep) {
> + stat_config.csv_output = true;
> + stat_config.big_num = false;
> + }
stat_config.csv_sep is by default ' ' so this will force
the standard output to be with -x
jirka
> +
> perf_stat.data.path = input_name;
> perf_stat.data.mode = PERF_DATA_MODE_READ;
>
> --
> 2.28.0
>
