tests: Scheduler benchmark
refs #3722
Change-Id: I52a9ef3bca3a458e4f397b50e104044e0fba2cf7
diff --git a/tests/integrated/scheduler-benchmark.cpp b/tests/integrated/scheduler-benchmark.cpp
new file mode 100644
index 0000000..6166899
--- /dev/null
+++ b/tests/integrated/scheduler-benchmark.cpp
@@ -0,0 +1,88 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#define BOOST_TEST_MAIN 1
+#define BOOST_TEST_DYN_LINK 1
+#define BOOST_TEST_MODULE Scheduler Benchmark
+
+#include "util/scheduler.hpp"
+
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace util {
+namespace scheduler {
+namespace tests {
+
+BOOST_AUTO_TEST_CASE(ScheduleCancel)
+{
+ boost::asio::io_service io;
+ Scheduler sched(io);
+
+ const int nEvents = 1000000;
+ std::vector<EventId> eventIds(nEvents);
+
+ time::steady_clock::TimePoint t1 = time::steady_clock::now();
+ for (int i = 0; i < nEvents; ++i) {
+ eventIds[i] = sched.scheduleEvent(time::seconds(1), []{});
+ }
+ time::steady_clock::TimePoint t2 = time::steady_clock::now();
+ for (int i = 0; i < nEvents; ++i) {
+ sched.cancelEvent(eventIds[i]);
+ }
+ time::steady_clock::TimePoint t3 = time::steady_clock::now();
+
+ BOOST_TEST_MESSAGE("schedule " << nEvents << " events: " << (t2 - t1));
+ BOOST_TEST_MESSAGE("cancel " << nEvents << " events: " << (t3 - t2));
+}
+
+BOOST_AUTO_TEST_CASE(Execute)
+{
+ boost::asio::io_service io;
+ Scheduler sched(io);
+
+ const int nEvents = 1000000;
+ int nExpired = 0;
+
+ // Events should expire at t1, but execution finishes at t2. The difference is the overhead.
+ time::steady_clock::TimePoint t1 = time::steady_clock::now() + time::seconds(5);
+ time::steady_clock::TimePoint t2;
+ // +1ms ensures this extra event is executed last. In case the overhead is less than 1ms,
+ // it will be reported as 1ms.
+ sched.scheduleEvent(t1 - time::steady_clock::now() + time::milliseconds(1), [&] {
+ t2 = time::steady_clock::now();
+ BOOST_REQUIRE_EQUAL(nExpired, nEvents);
+ });
+
+ for (int i = 0; i < nEvents; ++i) {
+ sched.scheduleEvent(t1 - time::steady_clock::now(), [&] { ++nExpired; });
+ }
+
+ io.run();
+
+ BOOST_REQUIRE_EQUAL(nExpired, nEvents);
+ BOOST_TEST_MESSAGE("execute " << nEvents << " events: " << (t2 - t1));
+}
+
+} // namespace tests
+} // namespace scheduler
+} // namespace util
+} // namespace ndn