linux/tools/perf/util/counts.c
Jin Yao cf4d9bd67c perf counts: Reset prev_raw_counts counts
When we want to reset the evsel->prev_raw_counts, zeroing the aggr is
not enough, we need to reset the perf_counts too.

The perf_counts__reset zeros the perf_counts, and it should zero the
aggr too. This patch changes perf_counts__reset to non-static, and calls
it in evsel__reset_prev_raw_counts to reset the prev_raw_counts.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200520042737.24160-3-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-05-28 10:03:27 -03:00

69 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "evsel.h"
#include "counts.h"
#include <linux/zalloc.h>
struct perf_counts *perf_counts__new(int ncpus, int nthreads)
{
struct perf_counts *counts = zalloc(sizeof(*counts));
if (counts) {
struct xyarray *values;
values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
if (!values) {
free(counts);
return NULL;
}
counts->values = values;
values = xyarray__new(ncpus, nthreads, sizeof(bool));
if (!values) {
xyarray__delete(counts->values);
free(counts);
return NULL;
}
counts->loaded = values;
}
return counts;
}
void perf_counts__delete(struct perf_counts *counts)
{
if (counts) {
xyarray__delete(counts->loaded);
xyarray__delete(counts->values);
free(counts);
}
}
void perf_counts__reset(struct perf_counts *counts)
{
xyarray__reset(counts->loaded);
xyarray__reset(counts->values);
memset(&counts->aggr, 0, sizeof(struct perf_counts_values));
}
void evsel__reset_counts(struct evsel *evsel)
{
perf_counts__reset(evsel->counts);
}
int evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads)
{
evsel->counts = perf_counts__new(ncpus, nthreads);
return evsel->counts != NULL ? 0 : -ENOMEM;
}
void evsel__free_counts(struct evsel *evsel)
{
perf_counts__delete(evsel->counts);
evsel->counts = NULL;
}