When perf stat is called with very detailed events, the output doesn't
align well like below:
$ sudo perf stat -a -ddd sleep 1
Performance counter stats for 'system wide':
8,020.23 msec cpu-clock # 7.997 CPUs utilized
3,970 context-switches # 494.998 /sec
169 cpu-migrations # 21.072 /sec
586 page-faults # 73.065 /sec
649,568,060 cycles # 0.081 GHz (30.42%)
304,044,345 instructions # 0.47 insn per cycle (38.40%)
60,313,022 branches # 7.520 M/sec (38.89%)
2,766,919 branch-misses # 4.59% of all branches (39.26%)
74,422,951 L1-dcache-loads # 9.279 M/sec (39.39%)
8,025,568 L1-dcache-load-misses # 10.78% of all L1-dcache accesses (39.22%)
3,314,995 LLC-loads # 413.329 K/sec (30.83%)
1,225,619 LLC-load-misses # 36.97% of all LL-cache accesses (30.45%)
<not supported> L1-icache-loads
20,420,493 L1-icache-load-misses # 0.00% of all L1-icache accesses (30.29%)
58,017,947 dTLB-loads # 7.234 M/sec (30.37%)
704,677 dTLB-load-misses # 1.21% of all dTLB cache accesses (30.27%)
234,225 iTLB-loads # 29.204 K/sec (30.29%)
417,166 iTLB-load-misses # 178.10% of all iTLB cache accesses (30.32%)
<not supported> L1-dcache-prefetches
<not supported> L1-dcache-prefetch-misses
1.002947355 seconds time elapsed
Increase the METRIC_LEN by 3 so that it can align properly.
$ sudo ./perf stat -a -ddd true
Performance counter stats for 'system wide':
233.70 msec cpu-clock # 11.714 CPUs utilized
320 context-switches # 1.369 K/sec
31 cpu-migrations # 132.648 /sec
482 page-faults # 2.062 K/sec
38,414,140 cycles # 0.164 GHz (6.65%)
13,656,335 instructions # 0.36 insn per cycle (20.31%)
3,594,871 branches # 15.382 M/sec (34.06%)
124,071 branch-misses # 3.45% of all branches (47.74%)
14,016,847 L1-dcache-loads # 59.977 M/sec (61.42%)
789,534 L1-dcache-load-misses # 5.63% of all L1-dcache accesses (65.98%)
315,353 LLC-loads # 1.349 M/sec (47.13%)
171,244 LLC-load-misses # 54.30% of all LL-cache accesses (41.98%)
<not supported> L1-icache-loads
2,591,299 L1-icache-load-misses # 0.00% of all L1-icache accesses (36.10%)
60,421,987 dTLB-loads # 258.543 M/sec (27.47%)
123,843 dTLB-load-misses # 0.20% of all dTLB cache accesses (18.88%)
38,289 iTLB-loads # 163.837 K/sec (10.34%)
21,631 iTLB-load-misses # 56.49% of all iTLB cache accesses (2.53%)
<not supported> L1-dcache-prefetches
<not supported> L1-dcache-prefetch-misses
Acked-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
---
tools/perf/util/stat-display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 96ad0c71adc2..3ddc159df4b2 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -218,7 +218,7 @@ struct outstate {
struct evsel *evsel;
};
-#define METRIC_LEN 35
+#define METRIC_LEN 38
static void new_line_std(struct perf_stat_config *config __maybe_unused,
void *ctx)
--
2.38.1.493.g58b659f92b-goog