Krakow, Poland, 31 May - 2 June 2023
This time it will not be about JIT, compilers, assemblers, GC or calling C from Java and Java performance (well, maybe a bit).
I would like to introduce you to the world of JVM's observability and diagnostics using tools that are part of the Java distribution and some open source tools.
We'll start by exploring the "bin" directory in JVM and discover the treasures that hide there, such as jmap, jstack, and jcmd.
Next, we'll look at unified logging, which is how to get the JVM to log the events that interest us. To finally move on to tools such as MAT or JITWatch.
If you're new to JVM, or maybe you've never had to analyze the behavior of an application, this presentation will be the perfect introduction to the topic.
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