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authorJiri Olsa <jolsa@kernel.org>2014-11-21 10:31:08 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-12-01 20:00:30 -0300
commit060c4f9c8cc871a96dfacdc9306101e8b9195805 (patch)
treed3b830fbe4aa3368222caf6bcabb9cc0bca1d899 /tools/perf
parent1d9e446b91e182055d874fbb30150aad479a4981 (diff)
downloadop-kernel-dev-060c4f9c8cc871a96dfacdc9306101e8b9195805.zip
op-kernel-dev-060c4f9c8cc871a96dfacdc9306101e8b9195805.tar.gz
perf stat: Use perf_evsel__read_cb in read_counter
Replacing __perf_evsel__read_on_cpu function with perf_evsel__read_cb function. The read_cb callback will be used later for global aggregation counter values as well. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1416562275-12404-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-stat.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 055ce92..9cc0db1 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -388,6 +388,26 @@ static void update_shadow_stats(struct perf_evsel *counter, u64 *count)
update_stats(&runtime_itlb_cache_stats[0], count[0]);
}
+static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
+ struct perf_counts_values *count)
+{
+ switch (aggr_mode) {
+ case AGGR_CORE:
+ case AGGR_SOCKET:
+ case AGGR_NONE:
+ perf_evsel__compute_deltas(evsel, cpu, count);
+ perf_counts_values__scale(count, scale, NULL);
+ evsel->counts->cpu[cpu] = *count;
+ update_shadow_stats(evsel, count->values);
+ break;
+ case AGGR_GLOBAL:
+ default:
+ break;
+ }
+
+ return 0;
+}
+
/*
* Read out the results of a single counter:
* aggregate counts across CPUs in system-wide mode
@@ -424,16 +444,11 @@ static int read_counter_aggr(struct perf_evsel *counter)
*/
static int read_counter(struct perf_evsel *counter)
{
- u64 *count;
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0)
+ if (perf_evsel__read_cb(counter, cpu, 0, read_cb))
return -1;
-
- count = counter->counts->cpu[cpu].values;
-
- update_shadow_stats(counter, count);
}
return 0;
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