Merge pull request #1706

7403e56f performance_tests: report small time per call in microseconds (moneromooo-monero)
cadada2d performance_tests: add tests for sc_reduce32 and cn_fast_hash (moneromooo-monero)
962c72b6 performance_tests: initialize logging at startup (moneromooo-monero)

tests/performance_tests/cn_fast_hash.h

@@ -0,0 +1,57 @@
+// Copyright (c) 2014-2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
+
+#pragma once
+
+#include "crypto/crypto.h"
+#include "cryptonote_core/cryptonote_basic.h"
+
+template<size_t bytes>
+class test_cn_fast_hash
+{
+public:
+  static const size_t loop_count = bytes < 256 ? 100000 : bytes < 4096 ? 10000 : 1000;
+
+  bool init()
+  {
+    crypto::rand(bytes, m_data.data());
+    return true;
+  }
+
+  bool test()
+  {
+    crypto::hash hash;
+    crypto::cn_fast_hash(&m_data, bytes, hash);
+    return true;
+  }
+
+private:
+  std::array<uint8_t, bytes> m_data;
+};

tests/performance_tests/main.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2016, The Monero Project
+// Copyright (c) 2014-2017, The Monero Project
 // 
 // All rights reserved.
 // 
@@ -43,12 +43,17 @@
 #include "generate_key_image_helper.h"
 #include "generate_keypair.h"
 #include "is_out_to_acc.h"
+#include "sc_reduce32.h"
+#include "cn_fast_hash.h"
 
 int main(int argc, char** argv)
 {
   set_process_affinity(1);
   set_thread_high_priority();
 
+  mlog_configure(mlog_get_default_log_path("performance_tests.log"), true);
+  mlog_set_log_level(0);
+
   performance_timer timer;
   timer.start();
 
@@ -102,8 +107,11 @@ int main(int argc, char** argv)
   TEST_PERFORMANCE0(test_derive_secret_key);
   TEST_PERFORMANCE0(test_ge_frombytes_vartime);
   TEST_PERFORMANCE0(test_generate_keypair);
+  TEST_PERFORMANCE0(test_sc_reduce32);
 
   TEST_PERFORMANCE0(test_cn_slow_hash);
+  TEST_PERFORMANCE1(test_cn_fast_hash, 32);
+  TEST_PERFORMANCE1(test_cn_fast_hash, 16384);
 
   std::cout << "Tests finished. Elapsed time: " << timer.elapsed_ms() / 1000 << " sec" << std::endl;
 

tests/performance_tests/performance_tests.h

@@ -95,10 +95,10 @@ public:
 
   int elapsed_time() const { return m_elapsed; }
 
-  int time_per_call() const
+  int time_per_call(int scale = 1) const
   {
     static_assert(0 < T::loop_count, "T::loop_count must be greater than 0");
-    return m_elapsed / T::loop_count;
+    return m_elapsed * scale / T::loop_count;
   }
 
 private:
@@ -130,7 +130,17 @@ void run_test(const char* test_name)
     std::cout << test_name << " - OK:\n";
     std::cout << "  loop count:    " << T::loop_count << '\n';
     std::cout << "  elapsed:       " << runner.elapsed_time() << " ms\n";
-    std::cout << "  time per call: " << runner.time_per_call() << " ms/call\n" << std::endl;
+    const char *unit = "ms";
+    int time_per_call = runner.time_per_call();
+    if (time_per_call < 30000) {
+     time_per_call = runner.time_per_call(1000);
+#ifdef _WIN32
+     unit = "\xb5s";
+#else
+     unit = "µs";
+#endif
+    }
+    std::cout << "  time per call: " << time_per_call << " " << unit << "/call\n" << std::endl;
   }
   else
   {

tests/performance_tests/sc_reduce32.h

@@ -0,0 +1,53 @@
+// Copyright (c) 2017, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#include "crypto/crypto.h"
+
+class test_sc_reduce32
+{
+public:
+  static const size_t loop_count = 10000000;
+
+  bool init()
+  {
+    m_hash = crypto::rand<crypto::hash>();
+    return true;
+  }
+
+  bool test()
+  {
+    crypto::hash reduced = m_hash;
+    sc_reduce32((unsigned char*)reduced.data);
+    return true;
+  }
+
+private:
+  crypto::hash m_hash;
+};