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Why does JMeter always show me a 0 ms latency when using 3rd party COAP Plugin?

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2

I'm testing an application running on a Raspberry PI via Apache JMeter. Everything works fine but JMeter always return 0 ms latency, no matter how many clients concurrently probe the Raspberry in the time unit.

At beginning I thought this behaviour was due to the short path between the client (my laptop) and the server (the raspberry) as they were on the same subnetwork in my house; then I decided to purposely add a delay on the server application (on the raspberry) before it answer (5 seconds to be precise); the responses were in fact delayed but latency was always 0. I searched on the web and many other users had the same problems but I found nothing that could be useful.

My requests are CoAP messages. I used a Plugin found at https://github.com/starrlingo/jmeter-iot-lib.
I tried several before this but they all gave me the same problem

jmeter latency coap

share|improve this question

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ibb.co/mHyD5M1 (The server acts like a proxy but it doesn't matter what it does)
  
  – Luigi2405
  Mar 24 at 11:28
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to specify you are talking about CoAP JMeter Plugin
  
  – user7294900
  Mar 24 at 11:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sure it is a Plugin Problem? I tried several before this and they all gave me the same problem. Anyway, what do you need to know?
  
  – Luigi2405
  Mar 24 at 11:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  if answer is ok which I think is the case, you should accept answer and upvote so that others can trustfully use the answer. Thanks
  
  – UBIK LOAD PACK
  Mar 26 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UBIKLOADPACK How can you say that the plugin I'm using does not set latency by calling that function if at github.com/starrlingo/jmeter-iot-lib only the .jar file is available? Anyway I've already tried the plugin you suggested but I experienced other kinds of problems that led me to discard it. I'll make another test with your plugin (perhaps I made a mistake in loading it the first time) and then I will accept the answer. (PS. It is pleonastic underlying that the plugin in JMeter is a 3rd party one since JMeter does not support CoAP Protocol "natively")
  
  – Luigi2405
  Mar 27 at 15:45
  
  

  
  
  
  

 | 
show 2 more comments

2

I'm testing an application running on a Raspberry PI via Apache JMeter. Everything works fine but JMeter always return 0 ms latency, no matter how many clients concurrently probe the Raspberry in the time unit.

At beginning I thought this behaviour was due to the short path between the client (my laptop) and the server (the raspberry) as they were on the same subnetwork in my house; then I decided to purposely add a delay on the server application (on the raspberry) before it answer (5 seconds to be precise); the responses were in fact delayed but latency was always 0. I searched on the web and many other users had the same problems but I found nothing that could be useful.

My requests are CoAP messages. I used a Plugin found at https://github.com/starrlingo/jmeter-iot-lib.
I tried several before this but they all gave me the same problem

jmeter latency coap

share|improve this question

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ibb.co/mHyD5M1 (The server acts like a proxy but it doesn't matter what it does)
  
  – Luigi2405
  Mar 24 at 11:28
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to specify you are talking about CoAP JMeter Plugin
  
  – user7294900
  Mar 24 at 11:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sure it is a Plugin Problem? I tried several before this and they all gave me the same problem. Anyway, what do you need to know?
  
  – Luigi2405
  Mar 24 at 11:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  if answer is ok which I think is the case, you should accept answer and upvote so that others can trustfully use the answer. Thanks
  
  – UBIK LOAD PACK
  Mar 26 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UBIKLOADPACK How can you say that the plugin I'm using does not set latency by calling that function if at github.com/starrlingo/jmeter-iot-lib only the .jar file is available? Anyway I've already tried the plugin you suggested but I experienced other kinds of problems that led me to discard it. I'll make another test with your plugin (perhaps I made a mistake in loading it the first time) and then I will accept the answer. (PS. It is pleonastic underlying that the plugin in JMeter is a 3rd party one since JMeter does not support CoAP Protocol "natively")
  
  – Luigi2405
  Mar 27 at 15:45
  
  

  
  
  
  

 | 
show 2 more comments

I'm testing an application running on a Raspberry PI via Apache JMeter. Everything works fine but JMeter always return 0 ms latency, no matter how many clients concurrently probe the Raspberry in the time unit.

At beginning I thought this behaviour was due to the short path between the client (my laptop) and the server (the raspberry) as they were on the same subnetwork in my house; then I decided to purposely add a delay on the server application (on the raspberry) before it answer (5 seconds to be precise); the responses were in fact delayed but latency was always 0. I searched on the web and many other users had the same problems but I found nothing that could be useful.

My requests are CoAP messages. I used a Plugin found at https://github.com/starrlingo/jmeter-iot-lib.
I tried several before this but they all gave me the same problem

jmeter latency coap

share|improve this question

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

share|improve this question

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

share|improve this question

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

edited Mar 24 at 20:07

UBIK LOAD PACK

26.3k43876

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

asked Mar 24 at 11:19

Luigi2405Luigi2405

165

1 Answer
1

active

oldest

votes

0

The plugin you're using does not set latency by calling:

• SampleResult#latencyEnd()

See:

• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPPubSampler.java


• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPSubSampler.java

Thanks @user7294900 for finding source code of your plugin

share|improve this answer

edited Mar 25 at 14:30

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It seems that plugin sampler source is located github.com/emqx/coap-jmeter/tree/master/coap-jmeter/src/main/… and doesn't call latencyEnd()
  
  – user7294900
  Mar 25 at 8:20
  
  

  
  
  
  

add a comment | 

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0

The plugin you're using does not set latency by calling:

• SampleResult#latencyEnd()

See:

• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPPubSampler.java


• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPSubSampler.java

Thanks @user7294900 for finding source code of your plugin

share|improve this answer

edited Mar 25 at 14:30

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It seems that plugin sampler source is located github.com/emqx/coap-jmeter/tree/master/coap-jmeter/src/main/… and doesn't call latencyEnd()
  
  – user7294900
  Mar 25 at 8:20
  
  

  
  
  
  

add a comment | 

0

The plugin you're using does not set latency by calling:

• SampleResult#latencyEnd()

See:

• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPPubSampler.java


• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPSubSampler.java

Thanks @user7294900 for finding source code of your plugin

share|improve this answer

edited Mar 25 at 14:30

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It seems that plugin sampler source is located github.com/emqx/coap-jmeter/tree/master/coap-jmeter/src/main/… and doesn't call latencyEnd()
  
  – user7294900
  Mar 25 at 8:20
  
  

  
  
  
  

add a comment | 

The plugin you're using does not set latency by calling:

• SampleResult#latencyEnd()

See:

• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPPubSampler.java


• https://github.com/emqx/coap-jmeter/blob/master/coap-jmeter/src/main/java/net/xmeter/samplers/CoAPSubSampler.java

Thanks @user7294900 for finding source code of your plugin

share|improve this answer

edited Mar 25 at 14:30

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

share|improve this answer

edited Mar 25 at 14:30

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876

answered Mar 24 at 20:06

UBIK LOAD PACKUBIK LOAD PACK

26.3k43876