commit 2d8f0f18a5c37cf0322cb385b99adb1167b7cf78
author Jiri Olsa <jolsa@kernel.org> Sun Oct 25 15:51:33 2015 +0100
committer Arnaldo Carvalho de Melo <acme@redhat.com> Thu Dec 17 14:55:43 2015 -0300
tree f8977fd692bef66d250ad1417be91cd5fe0fc4cb
parent 0ea0e3558607626196eb09ace796aac585e61f5c

perf tools: Add stat round user level event

Adding the stat round event to be stored after each stat interval round,
so that report tools (report/script) gets notified and process interval
data.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-18-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/session.c

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 663a2fd..5b3a81a 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -333,6 +333,15 @@
 	return 0;
 }
 
+static int process_stat_round_stub(struct perf_tool *tool __maybe_unused,
+				   union perf_event *event __maybe_unused,
+				   struct perf_session *perf_session
+				   __maybe_unused)
+{
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 void perf_tool__fill_defaults(struct perf_tool *tool)
 {
 	if (tool->sample == NULL)
@@ -391,6 +400,8 @@
 		tool->stat_config = process_event_stat_config_stub;
 	if (tool->stat == NULL)
 		tool->stat = process_stat_stub;
+	if (tool->stat_round == NULL)
+		tool->stat_round = process_stat_round_stub;
 }
 
 static void swap_sample_id_all(union perf_event *event, void *data)
@@ -729,6 +740,13 @@
 	event->stat.run    = bswap_64(event->stat.run);
 }
 
+static void perf_event__stat_round_swap(union perf_event *event,
+					bool sample_id_all __maybe_unused)
+{
+	event->stat_round.type = bswap_64(event->stat_round.type);
+	event->stat_round.time = bswap_64(event->stat_round.time);
+}
+
 typedef void (*perf_event__swap_op)(union perf_event *event,
 				    bool sample_id_all);
 
@@ -760,6 +778,7 @@
 	[PERF_RECORD_CPU_MAP]		  = perf_event__cpu_map_swap,
 	[PERF_RECORD_STAT_CONFIG]	  = perf_event__stat_config_swap,
 	[PERF_RECORD_STAT]		  = perf_event__stat_swap,
+	[PERF_RECORD_STAT_ROUND]	  = perf_event__stat_round_swap,
 	[PERF_RECORD_HEADER_MAX]	  = NULL,
 };
 
@@ -1304,6 +1323,8 @@
 		return tool->stat_config(tool, event, session);
 	case PERF_RECORD_STAT:
 		return tool->stat(tool, event, session);
+	case PERF_RECORD_STAT_ROUND:
+		return tool->stat_round(tool, event, session);
 	default:
 		return -EINVAL;
 	}