Performance Profiling: Measuring Performance

A key step of my understanding the performance of any application is knowing how to measure it.

We can’t say that an application's performance is valid just because it meets one performance property : there are different levels and dimensions of performance. It's hard to track and reproduce performance reliably

It is challenging to conduct unbiased performance measurements and draw accurate conclusions from them.

At times, performance measurement can be unpredictable. Changing an unrelated part of the source code can significantly impact program performance: this is known as measurement bias.

Designing performance tests and configuring the environment are essential components in evaluating performance.