leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

perf stat: Switch aggregation to use for_each loop

Browse Source 
Tidy up the use of cpu and index to hopefully make the code less error
prone. Avoid unused warnings with (void) which will be removed in a
later patch.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2022-01-04 22:13:07 -08:00
committed by Arnaldo Carvalho de Melo
parent 01843ca019
commit a023283fad
1 changed files with 27 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
tools/perf/util/stat-display.c
View File

@@ -330,8 +330,8 @@ static void print_metric_header(struct perf_stat_config *config,
static int first_shadow_cpu(struct perf_stat_config *config,
struct evsel *evsel, struct aggr_cpu_id id)
{
struct evlist *evlist = evsel->evlist;
int i;
struct perf_cpu_map *cpus;
int cpu, idx;
if (config->aggr_mode == AGGR_NONE)
return id.core;
@@ -339,14 +339,11 @@ static int first_shadow_cpu(struct perf_stat_config *config,
if (!config->aggr_get_id)
return 0;
for (i = 0; i < evsel__nr_cpus(evsel); i++) {
int cpu2 = evsel__cpus(evsel)->map[i];
if (cpu_map__compare_aggr_cpu_id(
config->aggr_get_id(config, evlist->core.cpus, cpu2),
id)) {
return cpu2;
}
cpus = evsel__cpus(evsel);
perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpus, idx),
id))
return cpu;
}
return 0;
}
@@ -516,20 +513,23 @@ static void printout(struct perf_stat_config *config, struct aggr_cpu_id id, int
static void aggr_update_shadow(struct perf_stat_config *config,
struct evlist *evlist)
{
int cpu, s;
int cpu, idx, s;
struct aggr_cpu_id s2, id;
u64 val;
struct evsel *counter;
struct perf_cpu_map *cpus;
for (s = 0; s < config->aggr_map->nr; s++) {
id = config->aggr_map->map[s];
evlist__for_each_entry(evlist, counter) {
cpus = evsel__cpus(counter);
val = 0;
for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
s2 = config->aggr_get_id(config, evsel__cpus(counter), cpu);
perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
(void)cpu;
s2 = config->aggr_get_id(config, cpus, idx);
if (!cpu_map__compare_aggr_cpu_id(s2, id))
continue;
val += perf_counts(counter->counts, cpu, 0)->val;
val += perf_counts(counter->counts, idx, 0)->val;
}
perf_stat__update_shadow_stats(counter, val,
first_shadow_cpu(config, counter, id),
@@ -634,18 +634,21 @@ static void aggr_cb(struct perf_stat_config *config,
struct evsel *counter, void *data, bool first)
{
struct aggr_data *ad = data;
int cpu;
int idx, cpu;
struct perf_cpu_map *cpus;
struct aggr_cpu_id s2;
for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
cpus = evsel__cpus(counter);
perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
struct perf_counts_values *counts;
s2 = config->aggr_get_id(config, evsel__cpus(counter), cpu);
(void)cpu;
s2 = config->aggr_get_id(config, cpus, idx);
if (!cpu_map__compare_aggr_cpu_id(s2, ad->id))
continue;
if (first)
ad->nr++;
counts = perf_counts(counter->counts, cpu, 0);
counts = perf_counts(counter->counts, idx, 0);
/*
* When any result is bad, make them all to give
* consistent output in interval mode.
@@ -1208,10 +1211,13 @@ static void print_percore_thread(struct perf_stat_config *config,
{
int s;
struct aggr_cpu_id s2, id;
struct perf_cpu_map *cpus;
bool first = true;
int idx, cpu;
for (int i = 0; i < evsel__nr_cpus(counter); i++) {
s2 = config->aggr_get_id(config, evsel__cpus(counter), i);
cpus = evsel__cpus(counter);
perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
s2 = config->aggr_get_id(config, cpus, idx);
for (s = 0; s < config->aggr_map->nr; s++) {
id = config->aggr_map->map[s];
if (cpu_map__compare_aggr_cpu_id(s2, id))
@@ -1220,7 +1226,7 @@ static void print_percore_thread(struct perf_stat_config *config,
print_counter_aggrdata(config, counter, s,
prefix, false,
&first, i);
&first, cpu);
}
}