[PATCH 09/12] perf stat: Allow to specify specific metric column len

From: Arnaldo Carvalho de Melo
Date: Mon Jun 11 2018 - 13:50:00 EST


From: Jiri Olsa <jolsa@xxxxxxxxxx>

The following change will introduce new metrics, that doesn't need such
wide hard coded spacing. Switch METRIC_ONLY_LEN macro usage with
metric_only_len variable.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Milian Wolff <milian.wolff@xxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180606221513.11302-7-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-stat.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 8f3fdc052728..3fc1f5286d50 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -145,6 +145,8 @@ static struct target target = {

typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu);

+#define METRIC_ONLY_LEN 20
+
static int run_count = 1;
static bool no_inherit = false;
static volatile pid_t child_pid = -1;
@@ -182,6 +184,7 @@ static int print_mixed_hw_group_error;
static u64 *walltime_run;
static bool ru_display = false;
static struct rusage ru_data;
+static unsigned int metric_only_len = METRIC_ONLY_LEN;

struct perf_stat {
bool record;
@@ -969,8 +972,6 @@ static void print_metric_csv(void *ctx,
fprintf(out, "%s%s%s%s", csv_sep, vals, csv_sep, unit);
}

-#define METRIC_ONLY_LEN 20
-
/* Filter out some columns that don't work well in metrics only mode */

static bool valid_only_metric(const char *unit)
@@ -1002,7 +1003,7 @@ static void print_metric_only(void *ctx, const char *color, const char *fmt,
struct outstate *os = ctx;
FILE *out = os->fh;
char buf[1024], str[1024];
- unsigned mlen = METRIC_ONLY_LEN;
+ unsigned mlen = metric_only_len;

if (!valid_only_metric(unit))
return;
@@ -1054,7 +1055,7 @@ static void print_metric_header(void *ctx, const char *color __maybe_unused,
if (csv_output)
fprintf(os->fh, "%s%s", unit, csv_sep);
else
- fprintf(os->fh, "%*s ", METRIC_ONLY_LEN, unit);
+ fprintf(os->fh, "%*s ", metric_only_len, unit);
}

static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
--
2.14.3