1 files changed, 53 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_timeit.h b/source/blender/blenlib/BLI_timeit.h
new file mode 100644
index 00000000000..121e2036b72
--- /dev/null
+++ b/source/blender/blenlib/BLI_timeit.h
@@ -0,0 +1,53 @@
+#pragma once
+
+/* This file contains utilities to make timing of
+ * code segments easy.
+ */
+
+#include "BLI_sys_types.h"
+#include <chrono>
+#include <iostream>
+
+namespace BLI {
+
+namespace Timers {
+
+using Clock = std::chrono::high_resolution_clock;
+using TimePoint = Clock::time_point;
+using Nanoseconds = std::chrono::nanoseconds;
+
+inline void print_duration(Nanoseconds duration)
+{
+  if (duration.count() < 100000) {
+    std::cout << duration.count() << " ns";
+  }
+  else {
+    std::cout << duration.count() / 1000000.0 << " ms";
+  }
+}
+
+class ScopedTimer {
+ private:
+  const char *m_name;
+  TimePoint m_start;
+
+ public:
+  ScopedTimer(const char *name = "") : m_name(name)
+  {
+    m_start = Clock::now();
+  }
+
+  ~ScopedTimer()
+  {
+    TimePoint end = Clock::now();
+    Nanoseconds duration = end - m_start;
+    std::cout << "Timer '" << m_name << "' took ";
+    print_duration(duration);
+    std::cout << "\n";
+  }
+};
+
+}  // namespace Timers
+}  // namespace BLI
+
+#define SCOPED_TIMER(name) BLI::Timers::ScopedTimer t(name);