Imported Upstream version 1.7.0upstream/1.7.0

1 files changed, 104 insertions, 0 deletions

diff --git a/runtime/onert/core/src/util/EventCollector.cc b/runtime/onert/core/src/util/EventCollector.cc
new file mode 100644
index 000000000..9ecc7e3b8
--- /dev/null
+++ b/runtime/onert/core/src/util/EventCollector.cc
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "util/EventCollector.h"
+
+// C++ standard libraries
+#include <chrono>
+
+// POSIX standard libraries
+#include <sys/time.h>
+#include <sys/resource.h>
+
+namespace
+{
+
+std::string timestamp(void)
+{
+  auto now = std::chrono::steady_clock::now();
+  return std::to_string(
+      std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch()).count());
+}
+
+class DurationEventBuilder
+{
+public:
+  DurationEventBuilder(const std::string &ts) : _ts{ts} {}
+
+  DurationEvent build(const std::string &tid, const std::string &name, const std::string &ph) const
+  {
+    DurationEvent evt;
+
+    evt.name = name;
+    evt.tid = tid;
+    evt.ph = ph;
+    evt.ts = _ts;
+
+    return evt;
+  }
+
+private:
+  std::string _ts;
+};
+
+void emit_rusage(EventRecorder *rec, const std::string &ts)
+{
+  struct rusage ru;
+
+  getrusage(RUSAGE_SELF, &ru);
+  {
+    CounterEvent evt;
+
+    evt.name = "maxrss";
+    evt.ph = "C";
+    evt.ts = ts;
+    evt.values["value"] = std::to_string(ru.ru_maxrss);
+
+    rec->emit(evt);
+  }
+
+  {
+    CounterEvent evt;
+
+    evt.name = "minflt";
+    evt.ph = "C";
+    evt.ts = ts;
+    evt.values["value"] = std::to_string(ru.ru_minflt);
+
+    rec->emit(evt);
+  }
+}
+
+} // namespace
+
+void EventCollector::onEvent(const Event &event)
+{
+  auto ts = timestamp();
+
+  switch (event.edge)
+  {
+    case Edge::BEGIN:
+      _rec->emit(DurationEventBuilder(ts).build(event.backend, event.label, "B"));
+      break;
+
+    case Edge::END:
+      _rec->emit(DurationEventBuilder(ts).build(event.backend, event.label, "E"));
+      break;
+  }
+
+  // Trace resource usage per each event notification
+  emit_rusage(_rec, ts);
+}