When should you measure performance?

Overview

QUIZ

Core PowerShell · Question 5 of 12

Explanation

Before optimization and again after the change so you can prove the result.

Apply the reasoning

Measure a representative baseline before changing the script, then repeat the same workload after the change. Compare output correctness as well as elapsed time. Use multiple runs when caching, network latency or service throttling could dominate a single observation.

Why the other choices fail

Measuring only afterward gives no baseline for improvement. A script can succeed and still waste time or resources. Display rendering is only one part of execution and should not be substituted for end-to-end timing. Keep input size, account and environment comparable, and decide whether warm-cache or cold-start behavior matches the production task.

Review the prerequisite

Read this first:

performance measurement

Primary documentation

Active Directory PowerShell documentation