perf hists: Add support for accumulated stat of hist entry
Maintain accumulated stat information in hist_entry->stat_acc if
symbol_conf.cumulate_callchain is set. Fields in ->stat_acc have same
vaules initially, and will be updated as callchain is processed later.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arun Sharma <asharma@fb.com>
Tested-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1401335910-16832-4-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 33ede53..615c752 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -109,6 +109,7 @@
show_nr_samples,
show_total_period,
use_callchain,
+ cumulate_callchain,
exclude_other,
show_cpu_utilization,
initialized,