Am 08.06.2016 um 20:35 schrieb Janine DeBeradinis:
Thanks for the response.
No, the logs do not reflect the delay, however, the java process goes down to 0
on all machines involved. Additionally, when our ops department is monitoring
the load, they see the load stop when I see the pause.
I am using the Summary Report to monitor the load.
No, nothing else should be using the network card. The ops department said the
machines are designed to only be built with what they need.
There really isn't a pattern to the pausing. We originally started the load
test on one machine, strictly using GUI mode and the pausing was actually less
frequent than it is now. We are now using three new machines. Two are running
jmeter server and the one is running jmeter GUI to execute on the servers, and
the pausing seems to be more frequent now.
I am really at a complete loss.
Look at sebbs advice and don't run the gui while load testing. Try to
take threaddumps and look at gc activity when you detect such a pause
like Deepak said.
Another interesting fact would be the versions of JMeter and java and
how much memory you gave each instance.
Apart from sending signals to the jvm, you could try the tools jvisualvm
or jmc to look inside the jvm.
Regards,
Felix
Thanks.
Janine
-----Original Message-----
From: Bob Nance [mailto:bob.na...@novationsys.com]
Sent: Wednesday, June 08, 2016 12:40 PM
To: JMeter Users List
Subject: Re: Jmeter pausing when running
I’ve been having an issue with JMeter periodically pausing when running a load
test and am not sure how to resolve this. We have tried several things, but
nothing seems to be working. The behavior is I start a JMeter load test. The
test will run fine for a few minutes, then pause, then pick back up, then
pause, etc. I’ve tried upping the heap size when starting JMeter, running in
distributed mode and non distributed mode, even turning off our Anti-Virus
software, but the issue still persists. The amount of load being generated
isn’t that much either. My test has about 75 different thread groups, but we
are only using 1 thread per group. The last thing I tired was adding
-XX:+DisableExplicitGC to jmeter.bat file, but that didn’t work either.
Does anyone have any other suggestions or thoughts?
Do the logs reflect the delay? (or could it just be a delayed display issue) Do
you have any data visualizations/listeners running during the tests? (they can
eat up a lot of CPU cycles) Do you have anything else running on the computer
that might be stealing the network card?
Is there a pattern that might point you somewhere (like it happens nearly at
the same test, or every 12.5 seconds or something)?
No direct help, but those are all things that I have seen affect my tests.
-Bob
---
Bob Nance
Novation Systems
bob.na...@novationsys.com<mailto:bob.na...@novationsys.com>
256-534-4620
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