Java – what is “VM recurring task thread”?

• Java

I can see this thread in my thread dump:

"VM Periodic Task Thread" prio=10 tid=0x00007fc23000e800 nid=0x49e6 waiting on condition

What is it?

Solution

Take a look at the latest openjdk source code. This is a C-level thread, which performs multiple tasks on a system without a native timer interrupt

It seems to be mainly used for sampling / analyzing what the JVM is doing

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