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Last active September 11, 2018 03:25
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C++の実行速度のテスト
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cpp_bench.md

C++ benchmark test

Problem

Fibonacci number: 40

Result

Visual Studio

  1. x64
    1. Debug
      5.063179 sec.
      4.965487 sec.
    2. Release
      0.532715 sec.
      0.535705 sec.
  2. x86
    1. Debug
      4.796800 sec.
      4.747221 sec.
    2. Release
      0.569646 sec.
      0.562492 sec.

CLion

  1. Debug
    0.723952 sec.
    0.694875 sec.

Summary

  • x64とx84の違いはあまり見られない
  • DebugとReleaseでは実行速度に大きな差が確認できる
  • この差はコンパイルオプションの差によるものと考えられる
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