Timers and "BZM Parallel Controller" in JMeter

[Richard Hill]

I'm trying to use timers to with the "BZM Parallel Controller" in JMeter but not having much luck:

1. If I put the timer as a child of a http sampler, the Timers are ignored.

2. If I put the timer at the same level of a http sampler, the Timers are ignored.

3. If I put the timer at the same level and before the BZM Parallel Controller, the timer value (e.g. 10 seconds) is added to the response duration of the BZM Parallel Controller.

4. If I use JSR223 PostProcessor as a child of the http sampler with a Thread.sleep(10000) , this appears to work but when I use the "validate thread group" option to test and debug a single threaded test, it won't ignore threadsleeps so takes an age to run.

5. If I use a "Flow Control Action" at the same level and before the BZM Parallel Controller, but as above, this appears to work when I use the "validate thread group" option to test and debug a single threaded test, it won't ignore "Flow Control Actions" so takes an age to run.

Any help or guidance would be appreciated. Thanks

I'm use JMeter 5.6.2 + "BZM Parallel Controller" 0.12 with "Generate Parent Sample" checked.

[Dmitri T]

I cannot reproduce points 1 and 2, the timers are working as expected:

For Flow Control Action sampler you can set the think time in User Defined Variables so if you need to dry-run the test without think time you will have to change it only in one place.

[Richard Hill]

Thanks Dmitri T for the reply.... but different timers do different things:

As a CHILD of Sampler

1. Constant Timer @ 10000ms - Timers are Ignored. 
2. JSR223 Timer @10000ms - This adds the thinktime to the  "bzm - Parallel Controller" load time time. Not desirable.
3. JSR223 PostProcessor with threadsleep @10000ms - Works Fine.

Same can be seen  when directly underneath sampler but the scope is wider (i.e. applied to all in "bzm - Parallel Controller")

[Richard Hill]

Just wondering if you have any more thoughts on this?

I am trying to capture the "BZM Parallel Controller" duration.

1. Constant Timer @ 10000ms - Timers are Ignored. 
2. JSR223 Timer @10000ms - This adds the thinktime to the  "bzm - Parallel Controller" load time time. Not desirable.

1. JSR223 PostProcessor with threadsleep @10000ms - Works Fine, correct duration in "bzm - Parallel Controller" load time time
2. Flow Control Action  with thread pause @10000ms - Works Fine in "bzm - Parallel Controller" load time time

Both 3 and 4 work but is a pain for when trying to "validate a threadgroup" (i.e run as a single thread) as it won't skip the delays. Having to manage it via UDV's.

It would appear that there are two issues with timers when using within "bzm - Parallel Controller". Timers are ignored OR if using a "JSR233 timer", it's duration is added to the "bzm - Parallel Controller" duration.

I appreciate any input. 

Thanks

Rich.

[Richard Hill]

Enable/Disable "bzm - Parallel Controller (TestA)" - "bzm - Parallel Controller (TestB)" to see the difference in behaviour.

Neither work as expected and as mentioned. Flow control action or JSR223 PostProcessor do work.

 

StackOverflow & Plugins Google Group2.jmx

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[Dmitri T]

As I've mentioned I cannot reproduce your issue, maybe you should re-install JMeter from scratch, install Plugins Manager, install Parallel Controller using the Plugins Manager and retry? 

[Richard Hill]

Thanks.... I've just tried on 5.6.3 and it appears to correctly apply the timer so it's either a problem with 5.6.2 or my configuration of 5.6.2

However, the bigger issue is that it's adding the timer value to the "BZM bzm - Parallel Controller" load time.

[Richard Hill]

Confirmed 100% that timers (constant timer) being ignored is a 5.6.2 issue only. Checked fresh downloads & install on a VM and compared to 5.6.2 to 5.6.3

However, as mentioned and illustrated in the previous screenshot, its adding the timer duration to "bzm - Parallel Controller" load time. This is a problem for both the "Constant Timer" and "JSR233 Timer" in both  5.6.2 & 5.6.3 .

Thanks