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perf stat: Use xyarray for cpu evsel counts

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Switching single dimensional array of 'struct perf_counts_values'
with xyarray object, so we could store thread dimension counts.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1435310967-14570-6-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-06-26 11:29:10 +02:00 committed by Arnaldo Carvalho de Melo
parent 1ac77e1ce8
commit a8e02324df
4 changed files with 28 additions and 14 deletions
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2
tools/perf/builtin-stat.c
View File

@ -218,7 +218,7 @@ static void perf_stat__reset_stats(struct perf_evlist *evlist)
evlist__for_each(evlist, evsel) {
perf_evsel__reset_stat_priv(evsel);
perf_evsel__reset_counts(evsel, perf_evsel__nr_cpus(evsel));
perf_evsel__reset_counts(evsel);
}
perf_stat__reset_shadow_stats();

2
tools/perf/tests/openat-syscall.c
View File

@ -46,7 +46,7 @@ int test__openat_syscall_event(void)
if (perf_counts(evsel->counts, 0)->val != nr_openat_calls) {
pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n",
nr_openat_calls, evsel->counts->cpu[0].val);
nr_openat_calls, perf_counts(evsel->counts, 0)->val);
goto out_close_fd;
}

33
tools/perf/util/stat.c
View File

@ -97,26 +97,39 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
struct perf_counts *perf_counts__new(int ncpus)
{
int size = sizeof(struct perf_counts) +
ncpus * sizeof(struct perf_counts_values);
struct perf_counts *counts = zalloc(sizeof(*counts));
return zalloc(size);
if (counts) {
struct xyarray *cpu;
cpu = xyarray__new(ncpus, 1, sizeof(struct perf_counts_values));
if (!cpu) {
free(counts);
return NULL;
}
counts->cpu = cpu;
}
return counts;
}
void perf_counts__delete(struct perf_counts *counts)
{
if (counts) {
xyarray__delete(counts->cpu);
free(counts);
}
static void perf_counts__reset(struct perf_counts *counts, int ncpus)
{
memset(counts, 0, (sizeof(*counts) +
(ncpus * sizeof(struct perf_counts_values))));
}
void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus)
static void perf_counts__reset(struct perf_counts *counts)
{
perf_counts__reset(evsel->counts, ncpus);
xyarray__reset(counts->cpu);
}
void perf_evsel__reset_counts(struct perf_evsel *evsel)
{
perf_counts__reset(evsel->counts);
}
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)

7
tools/perf/util/stat.h
View File

@ -3,6 +3,7 @@
#include <linux/types.h>
#include <stdio.h>
#include "xyarray.h"
struct stats
{
@ -45,13 +46,13 @@ struct perf_counts_values {
struct perf_counts {
s8 scaled;
struct perf_counts_values aggr;
struct perf_counts_values cpu[];
struct xyarray *cpu;
};
static inline struct perf_counts_values*
perf_counts(struct perf_counts *counts, int cpu)
{
return &counts->cpu[cpu];
return xyarray__entry(counts->cpu, cpu, 0);
}
void update_stats(struct stats *stats, u64 val);
@ -88,7 +89,7 @@ void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
struct perf_counts *perf_counts__new(int ncpus);
void perf_counts__delete(struct perf_counts *counts);
void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__reset_counts(struct perf_evsel *evsel);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__free_counts(struct perf_evsel *evsel);
#endif