table: Content Store performance fix

Change-Id: I7f6752ec279e64e81c90c0b3e8d756da34194965
Refs: #1432
diff --git a/tests-other/cs-smoketest.cpp b/tests-other/cs-smoketest.cpp
new file mode 100644
index 0000000..be8973f
--- /dev/null
+++ b/tests-other/cs-smoketest.cpp
@@ -0,0 +1,110 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014  Regents of the University of California,
+ *                     Arizona Board of Regents,
+ *                     Colorado State University,
+ *                     University Pierre & Marie Curie, Sorbonne University,
+ *                     Washington University in St. Louis,
+ *                     Beijing Institute of Technology
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * \author Ilya Moiseenko <iliamo@ucla.edu>
+ **/
+
+#include "table/cs.hpp"
+#include "table/cs-entry.hpp"
+#include <ndn-cpp-dev/security/key-chain.hpp>
+
+namespace nfd {
+
+static void
+runStressTest()
+{
+  shared_ptr<Data> dataWorkload[70000];
+  shared_ptr<Interest> interestWorkload[70000];
+
+  ndn::SignatureSha256WithRsa fakeSignature;
+  fakeSignature.setValue(ndn::dataBlock(tlv::SignatureValue,
+                                        reinterpret_cast<const uint8_t*>(0), 0));
+
+  // 182 MB in memory
+  for (int i = 0; i < 70000; i++)
+    {
+      Name name("/stress/test");
+      name.appendNumber(i % 4);
+      name.appendNumber(i);
+
+      shared_ptr<Interest> interest = make_shared<Interest>(name);
+      interestWorkload[i] = interest;
+
+      shared_ptr<Data> data = make_shared<Data>(name);
+      data->setSignature(fakeSignature);
+      dataWorkload[i] = data;
+    }
+
+  time::duration<double, boost::nano> previousResult(0);
+
+  for (size_t nInsertions = 1000; nInsertions < 10000000; nInsertions *= 2)
+    {
+      Cs cs;
+      srand(time::toUnixTimestamp(time::system_clock::now()).count());
+
+      time::steady_clock::TimePoint startTime = time::steady_clock::now();
+
+      int workloadCounter = 0;
+      for (int i = 0; i < nInsertions; i++)
+        {
+          if (workloadCounter > 69999)
+            workloadCounter = 0;
+
+          cs.find(*interestWorkload[workloadCounter]);
+          cs.insert(*dataWorkload[workloadCounter]);
+
+          workloadCounter++;
+        }
+
+      time::steady_clock::TimePoint endTime = time::steady_clock::now();
+
+      time::duration<double, boost::nano> runDuration = endTime - startTime;
+      time::duration<double, boost::nano> perOperationTime = runDuration / nInsertions;
+
+      std::cout << "nItem = " << nInsertions << std::endl;
+      std::cout << "Total running time = "
+                << time::duration_cast<time::duration<double> >(runDuration)
+                << std::endl;
+      std::cout << "Average per-operation time = "
+                << time::duration_cast<time::duration<double, boost::micro> >(perOperationTime)
+                << std::endl;
+
+      if (previousResult > time::nanoseconds(1))
+        std::cout << "Change compared to the previous: "
+                  << (100.0 * perOperationTime / previousResult) << "%" << std::endl;
+
+      std::cout << "\n=================================\n" << std::endl;
+
+      previousResult = perOperationTime;
+    }
+}
+
+} // namespace nfd
+
+int
+main(int argc, char** argv)
+{
+  nfd::runStressTest();
+
+  return 0;
+}