perf diff: Add -p option to display period values for hist entries

Adding -p option to show period values for both compared hist entries.
Showing hist column PERF_HPP__PERIOD and newly added hist column
PERF_HPP__PERIOD_BASELINE.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349448287-18919-6-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index ce76f36aeb0a..5604791e5ede 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -140,6 +140,7 @@ enum {
         PERF_HPP__OVERHEAD_GUEST_US,
         PERF_HPP__SAMPLES,
         PERF_HPP__PERIOD,
+        PERF_HPP__PERIOD_BASELINE,
         PERF_HPP__DELTA,
         PERF_HPP__RATIO,
         PERF_HPP__WEIGHTED_DIFF,