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authorJames Clark <james.clark@arm.com>2020-11-26 17:13:22 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-12-24 16:04:32 +0300
commitd526e1a033e03ec4515b1800f99d99a35c7ea790 (patch)
tree6335bde3d119fa5a64ad5c347bf879440562e391
parentcea6575fdccfc0624ca42f656e16e6b4d9bb48a5 (diff)
downloadlinux-d526e1a033e03ec4515b1800f99d99a35c7ea790.tar.xz
perf cpumap: Drop in cpu_aggr_map struct
Replace usages of perf_cpu_map with cpu_aggr map in places that are involved with 'perf stat' aggregation. This will then later be changed to be a map of cpu_aggr_id rather than an int so that more data can be stored. No functional changes. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-7-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-stat.c29
-rw-r--r--tools/perf/util/cpumap.c12
-rw-r--r--tools/perf/util/cpumap.h10
-rw-r--r--tools/perf/util/stat.h4
4 files changed, 35 insertions, 20 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 1ff76d36d1c9..cc017c7dcee9 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1320,14 +1320,29 @@ static int perf_stat_init_aggr_mode(void)
* the aggregation translate cpumap.
*/
nr = perf_cpu_map__max(evsel_list->core.cpus);
- stat_config.cpus_aggr_map = perf_cpu_map__empty_new(nr + 1);
+ stat_config.cpus_aggr_map = cpu_aggr_map__empty_new(nr + 1);
return stat_config.cpus_aggr_map ? 0 : -ENOMEM;
}
+static void cpu_aggr_map__delete(struct cpu_aggr_map *map)
+{
+ if (map) {
+ WARN_ONCE(refcount_read(&map->refcnt) != 0,
+ "cpu_aggr_map refcnt unbalanced\n");
+ free(map);
+ }
+}
+
+static void cpu_aggr_map__put(struct cpu_aggr_map *map)
+{
+ if (map && refcount_dec_and_test(&map->refcnt))
+ cpu_aggr_map__delete(map);
+}
+
static void perf_stat__exit_aggr_mode(void)
{
- perf_cpu_map__put(stat_config.aggr_map);
- perf_cpu_map__put(stat_config.cpus_aggr_map);
+ cpu_aggr_map__put(stat_config.aggr_map);
+ cpu_aggr_map__put(stat_config.cpus_aggr_map);
stat_config.aggr_map = NULL;
stat_config.cpus_aggr_map = NULL;
}
@@ -1425,25 +1440,25 @@ static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx,
}
static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus,
- struct perf_cpu_map **sockp)
+ struct cpu_aggr_map **sockp)
{
return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env);
}
static int perf_env__build_die_map(struct perf_env *env, struct perf_cpu_map *cpus,
- struct perf_cpu_map **diep)
+ struct cpu_aggr_map **diep)
{
return cpu_map__build_map(cpus, diep, perf_env__get_die, env);
}
static int perf_env__build_core_map(struct perf_env *env, struct perf_cpu_map *cpus,
- struct perf_cpu_map **corep)
+ struct cpu_aggr_map **corep)
{
return cpu_map__build_map(cpus, corep, perf_env__get_core, env);
}
static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *cpus,
- struct perf_cpu_map **nodep)
+ struct cpu_aggr_map **nodep)
{
return cpu_map__build_map(cpus, nodep, perf_env__get_node, env);
}
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index b18e53506656..ea81586305f4 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -151,12 +151,12 @@ static int cmp_aggr_cpu_id(const void *a_pointer, const void *b_pointer)
return a->id - b->id;
}
-int cpu_map__build_map(struct perf_cpu_map *cpus, struct perf_cpu_map **res,
+int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
void *data)
{
int nr = cpus->nr;
- struct perf_cpu_map *c = perf_cpu_map__empty_new(nr);
+ struct cpu_aggr_map *c = cpu_aggr_map__empty_new(nr);
int cpu, s2;
struct aggr_cpu_id s1;
@@ -279,22 +279,22 @@ struct aggr_cpu_id cpu_map__get_node(struct perf_cpu_map *map, int idx, void *da
return id;
}
-int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct perf_cpu_map **sockp)
+int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **sockp)
{
return cpu_map__build_map(cpus, sockp, cpu_map__get_socket, NULL);
}
-int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct perf_cpu_map **diep)
+int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **diep)
{
return cpu_map__build_map(cpus, diep, cpu_map__get_die, NULL);
}
-int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct perf_cpu_map **corep)
+int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **corep)
{
return cpu_map__build_map(cpus, corep, cpu_map__get_core, NULL);
}
-int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct perf_cpu_map **numap)
+int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **numap)
{
return cpu_map__build_map(cpus, numap, cpu_map__get_node, NULL);
}
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index ebd65c4f431b..b112069038be 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -34,10 +34,10 @@ int cpu_map__get_core_id(int cpu);
struct aggr_cpu_id cpu_map__get_core(struct perf_cpu_map *map, int idx, void *data);
int cpu_map__get_node_id(int cpu);
struct aggr_cpu_id cpu_map__get_node(struct perf_cpu_map *map, int idx, void *data);
-int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct perf_cpu_map **sockp);
-int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct perf_cpu_map **diep);
-int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct perf_cpu_map **corep);
-int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct perf_cpu_map **nodep);
+int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **sockp);
+int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **diep);
+int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **corep);
+int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **nodep);
const struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */
static inline int cpu_map__socket(struct perf_cpu_map *sock, int s)
@@ -69,7 +69,7 @@ int cpu__max_cpu(void);
int cpu__max_present_cpu(void);
int cpu__get_node(int cpu);
-int cpu_map__build_map(struct perf_cpu_map *cpus, struct perf_cpu_map **res,
+int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
void *data);
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 87522ffb2db2..b5369730b4a2 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -139,9 +139,9 @@ struct perf_stat_config {
const char *csv_sep;
struct stats *walltime_nsecs_stats;
struct rusage ru_data;
- struct perf_cpu_map *aggr_map;
+ struct cpu_aggr_map *aggr_map;
aggr_get_id_t aggr_get_id;
- struct perf_cpu_map *cpus_aggr_map;
+ struct cpu_aggr_map *cpus_aggr_map;
u64 *walltime_run;
struct rblist metric_events;
int ctl_fd;