[PATCH 19/23] perf stat: Fix per-socket output bug for uncore events

From: Arnaldo Carvalho de Melo
Date: Wed Jul 10 2013 - 15:21:13 EST


From: Stephane Eranian <eranian@xxxxxxxxxx>

This patch fixes a problem reported by Andi Kleen on perf
stat when measuring uncore events:

# perf stat --per-socket -e uncore_pcu/event=0x0/ -I1000 -a sleep 2

It would not report counts for the second socket. That was due to a
cpu mapping bug in print_aggr().

This patch also fixes the socket numbering bug for <not counted>
events.

Reported-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Signed-off-by: Stephane Eranian <eranian@xxxxxxxxxx>
Tested-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung.kim@xxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: zheng.z.yan@xxxxxxxxx
Link: http://lkml.kernel.org/r/20130705170645.GA32519@quad
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-stat.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 95768af..352fbd7 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -924,7 +924,7 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
static void print_aggr(char *prefix)
{
struct perf_evsel *counter;
- int cpu, s, s2, id, nr;
+ int cpu, cpu2, s, s2, id, nr;
u64 ena, run, val;

if (!(aggr_map || aggr_get_id))
@@ -936,7 +936,8 @@ static void print_aggr(char *prefix)
val = ena = run = 0;
nr = 0;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- s2 = aggr_get_id(evsel_list->cpus, cpu);
+ cpu2 = perf_evsel__cpus(counter)->map[cpu];
+ s2 = aggr_get_id(evsel_list->cpus, cpu2);
if (s2 != id)
continue;
val += counter->counts->cpu[cpu].val;
@@ -948,7 +949,7 @@ static void print_aggr(char *prefix)
fprintf(output, "%s", prefix);

if (run == 0 || ena == 0) {
- aggr_printout(counter, cpu, nr);
+ aggr_printout(counter, id, nr);

fprintf(output, "%*s%s%*s",
csv_output ? 0 : 18,
--
1.8.1.4

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