“The course structure saved me weeks. I recommend it to any dev who wants to level up.”
Sarah M.
Backend developer, Paris
New
Advanced
Java Performance Tuning
4.9(52 reviews)
4-6 weeks
Advanced
179,00 €229,00 €one-time payment
When your Java application is slow, knowing where to look makes all the difference. This course covers profiling (JFR, async-profiler), garbage collection tuning, benchmarks with JMH, and memory optimizations. You will learn to diagnose bottlenecks and apply measurable fixes. Every optimization is validated with before/after benchmarks.
Technologies
JFRJMHMicrometerGrafana
What you will learn
JVM profiling with JFR and async-profiler (flame graphs)
Garbage Collection: G1, ZGC, pause tuning
Reproducible benchmarks with JMH
Memory leaks and heap analysis (MAT, JProfiler)
I/O, buffer and network optimizations
Metrics dashboard with Micrometer and Grafana
Reviews
What learners say
“The labs are at the right level — no copy-paste, you actually think. Exactly what I was looking for.”
James K.
Fullstack dev, London
“I had a technical interview the week after. The concepts really stuck.”
Yuki T.
Tech lead, Lyon
“Pro-level training, no fluff. The checklists and project code are my go-to reference.”
Léo D.
Java developer, Brussels
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