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perf stat: Use perf_evsel__read_cb in read_counter

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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>
This commit is contained in:
Jiri Olsa 2014-11-21 10:31:08 +01:00 committed by Arnaldo Carvalho de Melo
parent 1d9e446b91
commit 060c4f9c8c
1 changed files with 21 additions and 6 deletions
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27
tools/perf/builtin-stat.c
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@ -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;