Initial commit

packages/leann-backend-diskann/third_party/DiskANN/include/timer.h

@@ -0,0 +1,40 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+#pragma once
+
+#include <chrono>
+
+namespace diskann
+{
+class Timer
+{
+    typedef std::chrono::high_resolution_clock _clock;
+    std::chrono::time_point<_clock> check_point;
+
+  public:
+    Timer() : check_point(_clock::now())
+    {
+    }
+
+    void reset()
+    {
+        check_point = _clock::now();
+    }
+
+    long long elapsed() const
+    {
+        return std::chrono::duration_cast<std::chrono::microseconds>(_clock::now() - check_point).count();
+    }
+
+    float elapsed_seconds() const
+    {
+        return (float)elapsed() / 1000000.0f;
+    }
+
+    std::string elapsed_seconds_for_step(const std::string &step) const
+    {
+        return std::string("Time for ") + step + std::string(": ") + std::to_string(elapsed_seconds()) +
+               std::string(" seconds");
+    }
+};
+} // namespace diskann