slxiao opened a new issue, #6232: URL: https://github.com/apache/jmeter/issues/6232
### Expected behavior We use 1 master and 10 slaves to do distributed testing. We want to do an experiment to send 10 requests in one seconds with 10 slaves, one requests for one slave. ### Actual behavior However we found it took more than 1 seconds actually. By dig into jmeter master logs, we found it starts slave one by one. And for each slave, it took more than 100ms to start up the slave, which is too slow.  Here are combined logs of jmeter master and one of the slaves: 10.244.7.40. 2024-01-25 **08:28:55,818** INFO o.a.j.e.ClientJMeterEngine: running clientengine run method 2024-01-25 **08:28:55,885** INFO o.a.j.e.RemoteJMeterEngineImpl : Creating JMeter engine on host 10.244.7.40 base '.' 2024-01-25 08:28:55,888 INFO o.a.j.s.FileServer: Default base='/opt/jmeter/apache-jmeter-5.4.1/bin' 2024-01-25 08:28:55,888 INFO o.a.j.s.FileServer: Set new base='.' 2024-01-25 08:28:55,889 INFO o.a.j.e.StandardJMeterEngine: Applying properties {} 2024-01-25 08:28:55,890 INFO o.a.j.e.RemoteJMeterEngineImpl: Running test Starting the test on host 10.244.7.40 @ Thu Jan 25 08:28:55 UTC 2024 (1706171335890) 2024-01-25 08:28:55,890 INFO o.a.j.e.StandardJMeterEngine: Running the test! 2024-01-25 08:28:55,918 INFO o.a.j.e.ClientJMeterEngine: sent test to 10.244.7.40 basedir='.' 2024-01-25 08:28:55,918 INFO o.a.j.e.ClientJMeterEngine: Sending properties {} 2024-01-25 **08:28:55,920** INFO o.a.j.e.ClientJMeterEngine: sent run command to 10.244.7.40 We can see it takes about 70 ms between "ClientJMeterEngine: running clientengine run method" and "RemoteJMeterEngineImpl : Creating JMeter engine on host 10.244.7.40". These seems the most time consuming step, but after checking the source code I don't get any useful findings.  Could anyone help? ### Steps to reproduce the problem 2024-01-25 08:28:54,196 INFO o.a.j.JMeter: Copyright (c) 1998-2021 The Apache Software Foundation 2024-01-25 08:28:54,196 INFO o.a.j.JMeter: Version 5.4.1 2024-01-25 08:28:54,196 INFO o.a.j.JMeter: java.version=16.0.2 2024-01-25 08:28:54,196 INFO o.a.j.JMeter: java.vm.name=OpenJDK 64-Bit Server VM 2024-01-25 08:28:54,196 INFO o.a.j.JMeter: os.name=Linux Jmeter configruation: - thread_nums: 1 - slaves: 10 - ramp_up: 1 - loops: 1 - scheduler: false ### JMeter Version 5.4.1 ### Java Version 16.0.2 ### OS Version Linux -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@jmeter.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org