Load Testing with k6
Measure how a system behaves under pressure instead of assuming today’s speed scales tomorrow.
What you'll learn
- Understand what load testing is trying to learn.
- Read the basic ideas behind k6-style performance scripts.
- Separate useful performance signals from vanity numbers.
Advanced QAlessonsJump to another lesson
Load Testing with k6
Measure how a system behaves under pressure instead of assuming today’s speed scales tomorrow.
Big Picture
One small picture can make this idea easier to hold.
Single-user checks
- Helpful for correctness, but they do not show how the system behaves under pressure.
Load-focused checks
- You learn how response time, error rate, and saturation change as demand rises.
VerdictMeasure how a system behaves under pressure instead of assuming today’s speed scales tomorrow.
How It Moves
Short steps make the flow easier to see.
Learn the idea
Read the key rule.
Try one example
Use a small real case.
Check the result
See what should happen.
Repeat with care
Try one more case.
Step By Step
This is the same idea, stretched across time.
- 1
Start small
Read one simple example.
- 2
Apply the idea
Use it on one real case.
- 3
Check the result
See what changed.
- 4
Keep the lesson
Use it again next time.
One Small Model
Think of this like a tiny card you can keep in your pocket.
Lesson card
4 fieldsQuick Check
What is the main point of a load test?
Map It
One more picture helps you see where this lesson matters most.
Where this helps
Simple use
One easy case
Best fit
Common day-to-day QA work
Edge case
A tricky path
High risk
A bug that hurts users