diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4c32ed7..712a08e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -15,6 +15,8 @@ include_directories(fast_cal)
 
 include_directories(graph)
 
+include_directories(benchmark)
+
 ################################################
 
 add_subdirectory(utils)
@@ -30,6 +32,8 @@ add_subdirectory(fast_cal)
 
 add_subdirectory(graph)
 
+add_subdirectory(benchmark)
+
 ################################################
 
 add_executable(klotski main.cc)
@@ -49,6 +53,8 @@ target_link_libraries(klotski fast_cal)
 
 target_link_libraries(klotski graph)
 
+target_link_libraries(klotski benchmark)
+
 target_link_libraries(klotski pthread)
 
 ################################################
diff --git a/src/benchmark/CMakeLists.txt b/src/benchmark/CMakeLists.txt
new file mode 100644
index 0000000..3f5a7c1
--- /dev/null
+++ b/src/benchmark/CMakeLists.txt
@@ -0,0 +1 @@
+add_library(benchmark benchmark.cc)
diff --git a/src/benchmark/benchmark.cc b/src/benchmark/benchmark.cc
new file mode 100644
index 0000000..db27da4
--- /dev/null
+++ b/src/benchmark/benchmark.cc
@@ -0,0 +1,39 @@
+#include "benchmark.h"
+
+#include "basic_ranges.h"
+
+const char split_line[] = "------------------------";
+
+
+
+void Benchmark::basic_ranges(std::ostream &out) {
+    out << split_line << std::endl;
+    out << "Basic Ranges Benchmark" << std::endl;
+    if (BasicRanges::status() != BasicRanges::NO_INIT) {
+        out << "already built -> skip" << std::endl;
+        out << split_line << std::endl;
+        return;
+    }
+    auto start = clock();
+    BasicRanges::build();
+//    time_ms(start, out);
+//    out << time_ms_(start);
+    out << time_ms_str(start);
+    out << std::endl << split_line << std::endl;
+}
+
+long Benchmark::time_ms_(clock_t start) {
+    return (clock() - start) * 1000 / CLOCKS_PER_SEC;
+}
+
+void Benchmark::time_ms(clock_t start, std::ostream &out) {
+    out << (clock() - start) * 1000 / CLOCKS_PER_SEC << "ms";
+}
+
+void Benchmark::time_us(clock_t start, std::ostream &out) {
+    out << (clock() - start) * 1000000 / CLOCKS_PER_SEC << "us";
+}
+
+std::string Benchmark::time_ms_str(clock_t start) {
+    return std::string("\033[32m") + std::to_string((clock() - start) * 1000 / CLOCKS_PER_SEC) + "ms\033[0m";
+}
diff --git a/src/benchmark/benchmark.h b/src/benchmark/benchmark.h
new file mode 100644
index 0000000..749e5fd
--- /dev/null
+++ b/src/benchmark/benchmark.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <ostream>
+
+class Benchmark {
+public:
+
+
+    static void basic_ranges(std::ostream &out);
+
+    static inline void time_ms(clock_t start, std::ostream &out);
+    static inline void time_us(clock_t start, std::ostream &out);
+
+    static inline long time_ms_(clock_t start);
+
+    static inline std::string time_ms_str(clock_t start);
+
+};
diff --git a/src/main.cc b/src/main.cc
index 7b65bd4..a56faa9 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -10,6 +10,8 @@
 #include "common.h"
 #include "graph.h"
 
+#include "benchmark.h"
+
 #include <thread>
 #include <algorithm>
 #include <unistd.h>
@@ -18,6 +20,13 @@
 //int main(int argc, char *argv[]) {
 int main() {
 
+//    BasicRanges::build();
+
+    Benchmark::basic_ranges(std::cout);
+
+    return 0;
+
+
     BasicRanges::build();
 //    AllCases::build();