Philippe, Can you capture & share some flight recorder data?
You need Oracle JRE (recent 1.8 would be enough) It is free of charge for test environments. Additional startup arguments: -XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:FlightRecorderOptions=repository=jfr "Start capture": $java_home/bin/jcmd <pid_of_jmeter> JFR.start name="flight_recording.jfr" duration=1m filename="flight_recording.jfr" settings=profile stackdepth=2000 Vladimir
