diff --git a/map/benchmark_tool/api.cpp b/map/benchmark_tool/api.cpp
new file mode 100644
index 0000000000..68ad0a3139
--- /dev/null
+++ b/map/benchmark_tool/api.cpp
@@ -0,0 +1,23 @@
+#include "api.hpp"
+
+#include "../../std/iostream.hpp"
+
+#include "../../base/start_mem_debug.hpp"
+
+
+namespace bench
+{
+
+void AllResult::Print(bool perFrame) const
+{
+  size_t count = m_all.m_count;
+  if (perFrame)
+    count *= m_reading.m_count;
+
+  // 'all time', 'index time', 'feature loading time'
+  cout << m_all.m_time / count << ' ' <<
+          (m_all.m_time - m_reading.m_time) / count << ' ' <<
+          m_reading.m_time / count << endl;
+}
+
+}