4 ms·

Looking forward to the days I can compile code with a "-Oe" to optimize for energy efficiency. ;-)

• corysama 10y ago
  You laugh. Between servers and mobile that option is long overdue.
  • cbsmith 10y ago
    Oh, it'd be nice, but it probably makes more sense to have handle that kind of thing with a JIT runtime.
    • cbsmith 10y ago
      I'm surprised I got downgraded. What is most power efficient varies a lot not just based on machine, but based on the machine context.
• adrianN 10y ago
  -O3 is probably an excellent approximation. Faster programs tend to use less energy.
  • jkot 10y ago
    Spin locks are not very power efficient.
  • cbsmith 10y ago
    -O3 unlocks a number of optimizations that are kind of the opposite of power efficient... at least, depending on the CPU that executes them.
  • ghlp 10y ago
    Not necessarily true. Please check: http://arcade.cs.columbia.edu/energy-oopsla14.pdf http://arcade.cs.columbia.edu/energy-oopsla14.pdf