Date:   Wed, 29 Dec 2021 23:20:29 -0800
In-Reply-To: <20211230072030.302559-1-irogers@google.com>
Message-Id: <20211230072030.302559-49-irogers@google.com>
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References: <20211230072030.302559-1-irogers@google.com>
Subject: [PATCH v3 47/48] perf stat: Correct first_shadow_cpu to return index
From:   Ian Rogers <irogers@google.com>
To:     Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        John Garry <john.garry@huawei.com>,
        Kajol Jain <kjain@linux.ibm.com>,
        "Paul A . Clarke" <pc@us.ibm.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Riccardo Mancini <rickyman7@gmail.com>,
        Kan Liang <kan.liang@linux.intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
        Vineet Singh <vineet.singh@intel.com>,
        James Clark <james.clark@arm.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Mike Leach <mike.leach@linaro.org>,
        Leo Yan <leo.yan@linaro.org>, coresight@lists.linaro.org,
        linux-arm-kernel@lists.infradead.org, zhengjun.xing@intel.com
Cc:     eranian@google.com, Ian Rogers <irogers@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

perf_stat__update_shadow_stats and perf_stat__print_shadow_stats use a
cpu map index rather than a CPU, but first_shadow_cpu is returning the
wrong value for this. Change first_shadow_cpu to
first_shadow_cpu_map_idx to make things agree.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/stat-display.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 0f192360b6c6..ba95379efcfb 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -327,24 +327,23 @@ static void print_metric_header(struct perf_stat_config *config,
 		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 }
 
-static int first_shadow_cpu(struct perf_stat_config *config,
-			    struct evsel *evsel, const struct aggr_cpu_id *id)
+static int first_shadow_cpu_map_idx(struct perf_stat_config *config,
+				struct evsel *evsel, const struct aggr_cpu_id *id)
 {
-	struct perf_cpu_map *cpus;
+	struct perf_cpu_map *cpus = evsel__cpus(evsel);
 	int cpu, idx;
 
 	if (config->aggr_mode == AGGR_NONE)
-		return id->cpu;
+		return perf_cpu_map__idx(cpus, id->cpu);
 
 	if (!config->aggr_get_id)
 		return 0;
 
-	cpus = evsel__cpus(evsel);
 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
 		struct aggr_cpu_id cpu_id = config->aggr_get_id(config, cpu);
 
 		if (aggr_cpu_id__equal(&cpu_id, id))
-			return cpu;
+			return idx;
 	}
 	return 0;
 }
@@ -503,7 +502,7 @@ static void printout(struct perf_stat_config *config, struct aggr_cpu_id id, int
 	}
 
 	perf_stat__print_shadow_stats(config, counter, uval,
-				first_shadow_cpu(config, counter, &id),
+				first_shadow_cpu_map_idx(config, counter, &id),
 				&out, &config->metric_events, st);
 	if (!config->csv_output && !config->metric_only) {
 		print_noise(config, counter, noise);
@@ -532,7 +531,7 @@ static void aggr_update_shadow(struct perf_stat_config *config,
 				val += perf_counts(counter->counts, idx, 0)->val;
 			}
 			perf_stat__update_shadow_stats(counter, val,
-					first_shadow_cpu(config, counter, &id),
+					first_shadow_cpu_map_idx(config, counter, &id),
 					&rt_stat);
 		}
 	}
-- 
2.34.1.448.ga2b2bfdf31-goog