diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 83fa468..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ac78173..49dfe08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,8 @@
 cmake_minimum_required(VERSION 3.2)
 
 project(g3log CXX)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
diff --git a/test_performance/Performance.cmake b/test_performance/Performance.cmake
index 83bfd62..53cd4f2 100644
--- a/test_performance/Performance.cmake
+++ b/test_performance/Performance.cmake
@@ -22,10 +22,32 @@
    # =========================
    IF (ADD_G3LOG_BENCH_PERFORMANCE)
        set(DIR_PERFORMANCE ${g3log_SOURCE_DIR}/test_performance)
+       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 
       message( STATUS "-DADD_G3LOG_BENCH_PERFORMANCE=ON" )
       include_directories (${DIR_PERFORMANCE})
 
+      find_library(TCMALLOC_LIBRARY NAMES tcmalloc)
+      if(NOT TCMALLOC_LIBRARY)
+        message(FATAL_ERROR "tcmalloc library not found")
+      else()
+         message( STATUS "tcmalloc: ${TCMALLOC_LIBRARY} was found" )
+      endif()
+      
+      find_library(PROFILER NAMES profiler)
+      if(NOT PROFILER)
+        message(FATAL_ERROR "PROFILER library not found")
+      else()
+         message( STATUS "PROFILER: ${PROFILER} was found" )
+      endif()
+
+
+      # add_executable(your_executable ${YOUR_SOURCES})
+      # target_link_libraries(your_executable PRIVATE ${TCMALLOC_LIBRARY})
+
+      
+
       # MEAN PERFORMANCE TEST
       add_executable(g3log-performance-threaded_mean
                     ${DIR_PERFORMANCE}/main_threaded_mean.cpp 
@@ -34,7 +56,7 @@
       set_target_properties(g3log-performance-threaded_mean PROPERTIES 
                             COMPILE_DEFINITIONS "G3LOG_PERFORMANCE=1")
       target_link_libraries(g3log-performance-threaded_mean 
-                             ${G3LOG_LIBRARY}  ${PLATFORM_LINK_LIBRIES})
+                             ${G3LOG_LIBRARY}  ${PLATFORM_LINK_LIBRIES} ${PROFILER} )
 
      # WORST CASE PERFORMANCE TEST
      add_executable(g3log-performance-threaded_worst 
@@ -43,7 +65,7 @@
      set_target_properties(g3log-performance-threaded_worst  PROPERTIES 
                            COMPILE_DEFINITIONS "G3LOG_PERFORMANCE=1")
      target_link_libraries(g3log-performance-threaded_worst  
-                            ${G3LOG_LIBRARY}  ${PLATFORM_LINK_LIBRIES})
+                            ${G3LOG_LIBRARY}  ${PLATFORM_LINK_LIBRIES} ${PROFILER})
 
    ELSE()
       message( STATUS "-DADD_G3LOG_BENCH_PERFORMANCE=OFF" )
diff --git a/test_unit/Test.cmake b/test_unit/Test.cmake
index d272af0..1c9eb16 100644
--- a/test_unit/Test.cmake
+++ b/test_unit/Test.cmake
@@ -18,6 +18,7 @@
 
    # Unit test for g3log  (cmake -DUSE_G3LOG_UNIT_TEST=ON ..)
    option (ADD_G3LOG_UNIT_TEST "g3log unit tests" ON)
+   message( STATUS "-DADD_G3LOG_UNIT_TEST=OFF" )  
 
 
    # 4. create the unit tests for g3log --- ONLY TESTED THE UNIT TEST ON LINUX
@@ -52,7 +53,7 @@
       enable_testing()
 
       set(DIR_UNIT_TEST ${g3log_SOURCE_DIR}/test_unit)
-      message( STATUS "-DADD_G3LOG_UNIT_TEST=ON" )  
+
 
      # obs see this: http://stackoverflow.com/questions/9589192/how-do-i-change-the-number-of-template-arguments-supported-by-msvcs-stdtupl
      # and this: http://stackoverflow.com/questions/2257464/google-test-and-visual-studio-2010-rc