From 239bd47f8355eb5defc865cf408824b6cfeca5dc Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 24 May 2016 12:52:37 -0700 Subject: perf stat: Add computation of TopDown formulas Implement the TopDown formulas in 'perf stat'. The topdown basic metrics reported by the kernel are collected, and the formulas are computed and output as normal metrics. See the kernel commit exporting the events for details on the used metrics. Committer note: Output example: # perf stat --topdown -a usleep 1 Performance counter stats for 'system wide': retiring bad speculation frontend bound backend bound S0-C0 2 23.8% 11.6% 28.3% 36.3% S0-C1 2 16.2% 15.7% 36.5% 31.6% 0.000579956 seconds time elapsed # v2: Always print all metrics, only use thresholds for coloring. v3: Mark retiring over threshold green, not red. v4: Only print one decimal digit Fix color printing of one metric v5: Avoid printing -0.0 v6: Remove extra frontend event lookup Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Link: http://lkml.kernel.org/r/1464119559-17203-2-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/stat.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/perf/util/stat.c') diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index ffa1d0653861..c1ba255f2abe 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -79,6 +79,11 @@ static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = { ID(TRANSACTION_START, cpu/tx-start/), ID(ELISION_START, cpu/el-start/), ID(CYCLES_IN_TX_CP, cpu/cycles-ct/), + ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots), + ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued), + ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired), + ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles), + ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles), }; #undef ID -- cgit v1.2.3