Is It Really Slow? Measure Your Own Code

Time real code with your language's stopwatch at growing sizes, run it several times and keep the fastest, then read the growth rate from how the times change when the data doubles.

Updated

Cheat sheet: Is It Really Slow? Measure Your Own Code
Category
Data Structures
Level
Apprentice
Tags
Benchmark (software-development), Growth Rate, software-development, Time Complexity