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External Debugging Tools 4: Debug the JVM Using jhsdb

Shai AlmogShai Almog
Jul 26, 20228 min read

Need to diagnose an app, possibly in production? Weird crashes? Gc tuning? Core dump from the JVM? jhsdb is the tool you've been searching for! · Java 9...

External Debugging Tools 4: Debug the JVM Using jhsdb

Spring Boot Performance Workshop with Vlad Mihalcea

Shai AlmogShai Almog
Jun 16, 202212 min read

Learn how to improve the performance of a Spring application and diagnose problems in production. Lessons from our live workshop covering JPA! · A couple...

Spring Boot Performance Workshop with Vlad Mihalcea

Debugging Java Equals and Hashcode Performance in Production

Shai AlmogShai Almog
Mar 21, 20225 min read

Hashcode and equals are at the crux of many hard to nail down Java performance issues. Here's how to track it in production. · I wrote a lot about the...

Debugging Java Equals and Hashcode Performance in Production

Debugging RAM: Java Garbage Collection - Java Heap Deep Dive, Part 1

Shai AlmogShai Almog
Jan 5, 202211 min read

Java memory usage is a complex beast, in this first installment I discuss the available GCs in modern Java and how we can benchmark/tune them · There are...

Debugging RAM: Java Garbage Collection - Java Heap Deep Dive, Part 1

Hashcode and Equals Debugging, Performance

Shai AlmogShai Almog
Nov 23, 20216 min read

Going down the rabbit hole of core methods that are inherent in Java but common in many languages · A few weeks ago I ran into this story on reddit ...

Hashcode and Equals Debugging, Performance