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Date: Mon, 17 Oct 2022 19:02:15 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
Jiri Olsa <jolsa@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
LKML <linux-kernel@...r.kernel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
linux-perf-users@...r.kernel.org,
Kan Liang <kan.liang@...ux.intel.com>,
Leo Yan <leo.yan@...aro.org>, Andi Kleen <ak@...ux.intel.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
James Clark <james.clark@....com>,
Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
Michael Petlan <mpetlan@...hat.com>
Subject: [PATCH 08/20] perf stat: Allocate evsel->stats->aggr properly
The perf_stat_config.aggr_map should have a correct size of the
aggregation map. Use it to allocate aggr_counts.
Also AGGR_NONE with per-core events can be tricky because it doesn't
aggreate basically but it needs to do so for per-core events only.
So only per-core evsels will have stats->aggr data.
Note that other caller of evlist__alloc_stat() might not have
stat_config or aggr_map.
Acked-by: Ian Rogers <irogers@...gle.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
tools/perf/builtin-script.c | 4 ++--
tools/perf/builtin-stat.c | 6 +++---
tools/perf/tests/parse-metric.c | 2 +-
tools/perf/tests/pmu-events.c | 2 +-
tools/perf/util/stat.c | 9 +++++++--
tools/perf/util/stat.h | 3 ++-
6 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 7ca238277d83..d7ec8c1af293 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2049,7 +2049,7 @@ static void perf_sample__fprint_metric(struct perf_script *script,
u64 val;
if (!evsel->stats)
- evlist__alloc_stats(script->session->evlist, false);
+ evlist__alloc_stats(&stat_config, script->session->evlist, /*alloc_raw=*/false);
if (evsel_script(leader)->gnum++ == 0)
perf_stat__reset_shadow_stats();
val = sample->period * evsel->scale;
@@ -3632,7 +3632,7 @@ static int set_maps(struct perf_script *script)
perf_evlist__set_maps(&evlist->core, script->cpus, script->threads);
- if (evlist__alloc_stats(evlist, true))
+ if (evlist__alloc_stats(&stat_config, evlist, /*alloc_raw=*/true))
return -ENOMEM;
script->allocated = true;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 9053fd4d15a7..92a8e4512f98 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -2121,7 +2121,7 @@ static int set_maps(struct perf_stat *st)
perf_evlist__set_maps(&evsel_list->core, st->cpus, st->threads);
- if (evlist__alloc_stats(evsel_list, true))
+ if (evlist__alloc_stats(&stat_config, evsel_list, /*alloc_raw=*/true))
return -ENOMEM;
st->maps_allocated = true;
@@ -2568,10 +2568,10 @@ int cmd_stat(int argc, const char **argv)
goto out;
}
- if (evlist__alloc_stats(evsel_list, interval))
+ if (perf_stat_init_aggr_mode())
goto out;
- if (perf_stat_init_aggr_mode())
+ if (evlist__alloc_stats(&stat_config, evsel_list, interval))
goto out;
/*
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 68f5a2a03242..21b7ac00d798 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -103,7 +103,7 @@ static int __compute_metric(const char *name, struct value *vals,
if (err)
goto out;
- err = evlist__alloc_stats(evlist, false);
+ err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/false);
if (err)
goto out;
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 097e05c796ab..5d0d3b239a68 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -889,7 +889,7 @@ static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_e
goto out_err;
}
- err = evlist__alloc_stats(evlist, false);
+ err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/false);
if (err)
goto out_err;
/*
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index c9d5aa295b54..374149628507 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -211,12 +211,17 @@ static int evsel__alloc_stats(struct evsel *evsel, int nr_aggr, bool alloc_raw)
return 0;
}
-int evlist__alloc_stats(struct evlist *evlist, bool alloc_raw)
+int evlist__alloc_stats(struct perf_stat_config *config,
+ struct evlist *evlist, bool alloc_raw)
{
struct evsel *evsel;
+ int nr_aggr = 0;
+
+ if (config && config->aggr_map)
+ nr_aggr = config->aggr_map->nr;
evlist__for_each_entry(evlist, evsel) {
- if (evsel__alloc_stats(evsel, 0, alloc_raw))
+ if (evsel__alloc_stats(evsel, nr_aggr, alloc_raw))
goto out_free;
}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 42453513ffea..0980875b9be1 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -267,7 +267,8 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
struct runtime_stat *st);
void perf_stat__collect_metric_expr(struct evlist *);
-int evlist__alloc_stats(struct evlist *evlist, bool alloc_raw);
+int evlist__alloc_stats(struct perf_stat_config *config,
+ struct evlist *evlist, bool alloc_raw);
void evlist__free_stats(struct evlist *evlist);
void evlist__reset_stats(struct evlist *evlist);
void evlist__reset_prev_raw_counts(struct evlist *evlist);
--
2.38.0.413.g74048e4d9e-goog
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