Profiling

  • profvis
  • Avoid optimizing the wrong thing.
    • Improve programmer productivity at improving algorithmic efficiency.

profvis output. The expression is broken down into steps, with time and percentage of total time for each step. The code steps are: 1. library('rnoaa'), 800 ms, 52%; 2. library('ggplot2'), 30 ms, 2%; 3. out