4 ms·

What compiler flags did you use? Perhaps -Os would even things out a little more.

• usr1106 5y ago
  Why would anyone want to optimize for space? On a halfway modern PC at least, some really embedded platform might be a different story.
  • ameixaseca 5y ago
    Cache-friendliness; applies to any platform. And it's "optimize for size", by the way.
    • usr1106 5y ago
      Right, in certain cases. But here it's a networking application. So memory accesses won't be your bottleneck.
• rwmj 5y ago
  gcc-11.2.1-1.fc35.x86_64 with whatever defaults the upstream project chooses.
  • junon 5y ago
    Did you run CMake with -DCMAKE_BUILD_TYPE=Release ?
    • rwmj 5y ago
      No, with -DCMAKE_BUILD_TYPE=RelWithDebInfo
      • junon 5y ago
        Right, and C++ is definitely going to have more debug info because of longer symbol names. Test the two with Release instead. That will give you real results.