Performance of Distributed testing

[Masashi Takeichi <ta...@nttdata.co.jp>]

Hello 

May I ask some questions about Distributed testing?

I'm using 3 machines for JMeter's load test.
At one controller machine, JMeter is running in GUI mode 
At two agent machines, JMeter are running in server mode.
The number of threads is 100 per agent.

I executed a load test, 
but the requests generated by JMeter were less than they were expected.
So I captured RMI communication between a controller and agents and
found that a lot of RMI messages were exchanged without a break.
The traffic seems to cause performance down of agents.

When I used 'hold_samples=true' property to limit data transfer,
the performance was improved.
#The agent's CPU load became less than half. 
The feature is very useful.
But I want to monitor performance in real time using some listeners.


Is the solution of "the compatibility between agent's performance and real-time monitoring"
discussed in JMeter's developers ?
e.g.)
 * Dynamic turning of Data Transfer Timing between agents and controller
 * Dynamic turning of Amount of Transferred Data.

And could you tell me about JMeter's road map 
related to Distributed testing ?


Best regards,


---------------------------------
 Masashi Takeichi




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