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perf stat: Introduce perf_counts__(new|delete|reset) functions

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Move 'struct perf_counts' allocation|free|reset code into separate
functions.

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/1434269985-521-13-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-06-14 10:19:27 +02:00 committed by Arnaldo Carvalho de Melo
parent a9a3a4d92d
commit 9df38e82e2
3 changed files with 33 additions and 17 deletions
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19
tools/perf/builtin-stat.c
View File

@ -178,24 +178,19 @@ static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel)
{
void *addr;
size_t sz;
struct perf_counts *counts;
sz = sizeof(*evsel->counts) +
(perf_evsel__nr_cpus(evsel) * sizeof(struct perf_counts_values));
counts = perf_counts__new(perf_evsel__nr_cpus(evsel));
if (counts)
evsel->prev_raw_counts = counts;
addr = zalloc(sz);
if (!addr)
return -ENOMEM;
evsel->prev_raw_counts = addr;
return 0;
return counts ? 0 : -ENOMEM;
}
static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
{
zfree(&evsel->prev_raw_counts);
perf_counts__delete(evsel->prev_raw_counts);
evsel->prev_raw_counts = NULL;
}
static void perf_evlist__free_stats(struct perf_evlist *evlist)

28
tools/perf/util/stat.c
View File

@ -95,20 +95,38 @@ 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);
return zalloc(size);
}
void perf_counts__delete(struct perf_counts *counts)
{
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)
{
memset(evsel->counts, 0, (sizeof(*evsel->counts) +
(ncpus * sizeof(struct perf_counts_values))));
perf_counts__reset(evsel->counts, ncpus);
}
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)
{
evsel->counts = zalloc((sizeof(*evsel->counts) +
(ncpus * sizeof(struct perf_counts_values))));
evsel->counts = perf_counts__new(ncpus);
return evsel->counts != NULL ? 0 : -ENOMEM;
}
void perf_evsel__free_counts(struct perf_evsel *evsel)
{
zfree(&evsel->counts);
perf_counts__delete(evsel->counts);
evsel->counts = NULL;
}

3
tools/perf/util/stat.h
View File

@ -62,6 +62,9 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
double avg, int cpu, enum aggr_mode aggr);
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);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__free_counts(struct perf_evsel *evsel);