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perf stat: Use read_counter in read_counter_aggr 

Use the read_counter function as the values retrieval function for aggr
counter values thus eliminating the use of __perf_evsel__read function.

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/1416562275-12404-7-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2014-11-21 10:31:10 +01:00 committed by Arnaldo Carvalho de Melo
parent 9bf1a52914
commit 1971f59f1a
1 changed files with 16 additions and 2 deletions
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18
tools/perf/builtin-stat.c
View File

@ -391,6 +391,8 @@ static void update_shadow_stats(struct perf_evsel *counter, u64 *count)
static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
struct perf_counts_values *count)
{
struct perf_counts_values *aggr = &evsel->counts->aggr;
switch (aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
@ -401,6 +403,11 @@ static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
update_shadow_stats(evsel, count->values);
break;
case AGGR_GLOBAL:
aggr->val += count->val;
if (scale) {
aggr->ena += count->ena;
aggr->run += count->run;
}
default:
break;
}
@ -408,20 +415,27 @@ static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
return 0;
}
static int read_counter(struct perf_evsel *counter);
/*
* Read out the results of a single counter:
* aggregate counts across CPUs in system-wide mode
*/
static int read_counter_aggr(struct perf_evsel *counter)
{
struct perf_counts_values *aggr = &counter->counts->aggr;
struct perf_stat *ps = counter->priv;
u64 *count = counter->counts->aggr.values;
int i;
if (__perf_evsel__read(counter, perf_evsel__nr_cpus(counter),
thread_map__nr(evsel_list->threads), scale) < 0)
aggr->val = aggr->ena = aggr->run = 0;
if (read_counter(counter))
return -1;
perf_evsel__compute_deltas(counter, -1, aggr);
perf_counts_values__scale(aggr, scale, &counter->counts->scaled);
for (i = 0; i < 3; i++)
update_stats(&ps->res_stats[i], count[i]);