From d526e1a033e03ec4515b1800f99d99a35c7ea790 Mon Sep 17 00:00:00 2001 From: James Clark Date: Thu, 26 Nov 2020 16:13:22 +0200 Subject: [PATCH] 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 Acked-by: Namhyung Kim Acked-by: Jiri Olsa Tested-by: John Garry Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Mark Rutland Cc: Alexander Shishkin Cc: Thomas Richter Link: https://lore.kernel.org/r/20201126141328.6509-7-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 29 ++++++++++++++++++++++------- tools/perf/util/cpumap.c | 12 ++++++------ tools/perf/util/cpumap.h | 10 +++++----- tools/perf/util/stat.h | 4 ++-- 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;