add benchmarking framework

.astylerc

@@ -1,14 +0,0 @@
---style=google 
---indent=spaces
---indent-preproc-define
---indent-preproc-cond
---pad-oper 
---pad-comma 
---pad-header
-#--unpad-paren 
---align-pointer=name 
---add-braces 
---convert-tabs
---mode=c 
-# disable backup files
---suffix=none

.gitattributes

@@ -1,6 +0,0 @@
-*           text=auto
-*.[ch]      text whitespacestrict
-*.yaml      text whitespacestrict
-Makefile    text whitespace="tabwidth=4,-tab-in-indent,indent-with-non-tab"
-
-[attr]whitespacestrict whitespace="trailing-space,tab-in-indent,space-before-tab,tabwidth=4"

.gitignore

@@ -8,6 +8,3 @@ bin/
 # Object and library files on Windows
 *.lib
 *.obj
-
-__pycache__
-testcases/

CMakeLists.txt

@@ -33,7 +33,21 @@ else()
   message(FATAL_ERROR "Unknown processor:" ${CMAKE_SYSTEM_PROCESSOR})
 endif()
 
-add_subdirectory(3rd/gtest)
+add_subdirectory(${CMAKE_SOURCE_DIR}/3rd/gtest)
+if(NOT CMAKE_BUILD_TYPE_LOWER STREQUAL "debug")
+  # settings below are required by benchmark library
+  set(CMAKE_BUILD_TYPE "Release" CACHE STRING "" FORCE)
+  # Target for benchmark - it also builds gtest library
+  set(BENCHMARK_ENABLE_GTEST_TESTS ON CACHE BOOL "Enable testing of the benchmark library." FORCE)
+  set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "Disable benchmark tests" FORCE)
+  set(GOOGLETEST_PATH "${CMAKE_SOURCE_DIR}/3rd/gtest" CACHE PATH "Path to the gtest sources" FORCE)
+  #if (NOT MACOSX)
+  # set(BENCHMARK_ENABLE_LTO ON CACHE BOOL "Enable link time optim" FORCE)
+  #endif()
+  set(BENCHMARK_ENABLE_INSTALL OFF CACHE BOOL "" FORCE)
+  add_subdirectory(${CMAKE_SOURCE_DIR}/3rd/gbench)
+endif()
+
 
 # Arch settings
 
@@ -268,6 +282,9 @@ target_include_directories(
 
   ${CMAKE_SOURCE_DIR})
 
+if(NOT CMAKE_BUILD_TYPE_LOWER STREQUAL "debug")
+add_subdirectory(test/bench)
+endif()
 
 install(TARGETS pqc pqc_s
   PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ GROUP_WRITE WORLD_READ WORLD_WRITE

test/bench/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.13)
+
+add_executable(
+	bench
+	kyber.cc
+)
+
+target_link_libraries(
+	bench
+
+	pqc
+	benchmark
+	benchmark_main
+)
+

test/bench/kyber.cc

@@ -0,0 +1,24 @@
+#include <array>
+#include <stdint.h>
+#include <utility>
+
+#include <gtest/gtest.h>
+#include <benchmark/benchmark.h>
+#include <benchmark/../../src/statistics.h>
+#include <benchmark/../../src/cycleclock.h>
+
+auto cpucycle = [](benchmark::State &st, int64_t cycles) {
+    st.counters["CPU cycles: mean"] = benchmark::Counter(
+        cycles, benchmark::Counter::kAvgIterations | benchmark::Counter::kResultNoFormat);
+};
+
+static void BenchKyberMatK2(benchmark::State &st) {
+	int64_t t, total = 0;
+    for (auto _ : st) {
+        t = benchmark::cycleclock::Now();
+        total += benchmark::cycleclock::Now() - t;
+    }
+    cpucycle(st, total);
+}
+
+BENCHMARK(BenchKyberMatK2);