Thread:Ī thread is a series of statements which can be processed in parallel in the same program to achieve the concurrency. Are some threads stuck in deadlock? Are all the threads running? Which threads are waiting for the blocked resources etc? All these questions can be answered by analysing in the thread dump.īefore jumping on to Thread dump, firstly I would like to introduce you with some basic terms which are helpful to understand the concept of Thread Dump: 1. Thread Dump helps to find out what every thread in the JVM is doing at a particular point in time. Thread dumps are vital artefacts to diagnose CPU spikes, deadlocks, poor response times, memory problems, unresponsive applications and other system problems. Similar to Heap Dump, Thread Dump is a snapshot of the status of all the threads at a particular time. Now, let’s move further and try to understand what is the thread dump and how it can be analysed?

We have already discussed Heap Dump and its analysis in the previous post. Dumping is a well-known term in the performance testing, whether it is heap dump or thread dump both are very useful to carry out the root cause analysis.

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