What are 'executor-thread-n' threads?

[gfmedeiros]

Hello,

What are 'executor-thread-n' (executor-thread-0, executor-thread-1, executor-thread-n) threads used for?

I am using JFR/JMC to learn about Quarkus's architecture. I've recorded a wrk benchmark applied on the sample application created by the Maven plugin:

mvn io.quarkus.platform:quarkus-maven-plugin:2.13.3.Final:create \
    -DprojectGroupId=my-groupId \
    -DprojectArtifactId=my-artifactId

wrk -c 200 -d 30s -t 8 http://localhost:8080/hello

This is the result:

My interpretation is that during the spike caused by wrk, several executor-threads were created, only to be parked for most of the time. What is going on?