Correlating Metrics to Find Root Causes
Move beyond reading single charts: learn to overlay client and server metrics to pinpoint why performance degrades under load.
From Symptoms to Causes
A spike in response time is a symptom. Performance analysis is about finding the cause. Doing that means correlating what the load tool saw with what the server experienced at the same moment.
The Two Sides of a Test
Every load test has two data sources:
- Client-side metrics from JMeter or k6 (latency, throughput, errors).
- Server-side metrics (CPU, memory, GC, DB queries).
Correlation overlays both on a shared timeline.
All lessons in this course
- Server-Side Monitoring Tools
- Analyzing JMeter Results
- Interpreting k6 Metrics
- Correlating Metrics to Find Root Causes