Commit 9bf1a529 authored Nov 21, 2014 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Dec 01, 2014

perf stat: Make read_counter work over the thread dimension



The read function will be used later for both aggr and cpu counters, so
we need to make it work over threads 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/1416562275-12404-6-git-send-email-jolsa@kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 060c4f9c

tools/perf/builtin-stat.c

+11 −4

Original line number	Diff line number	Diff line
		@@ -444,12 +444,19 @@ static int read_counter_aggr(struct perf_evsel *counter)
		*/
		static int read_counter(struct perf_evsel *counter)
		{
		int cpu;
		int nthreads = thread_map__nr(evsel_list->threads);
		int ncpus = perf_evsel__nr_cpus(counter);
		int cpu, thread;

		for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
		if (perf_evsel__read_cb(counter, cpu, 0, read_cb))
		if (counter->system_wide)
		nthreads = 1;

		for (thread = 0; thread < nthreads; thread++) {
		for (cpu = 0; cpu < ncpus; cpu++) {
		if (perf_evsel__read_cb(counter, cpu, thread, read_cb))
		return -1;
		}
		}

		return 0;
		}