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www.lk-mug.org #devConfLK2019#LKMUG
Letterkenny,Ireland
How’s relevant JMeter to me?
Giulio Vian – DevOps Lead – Glass, Lewis & Co.
www.lk-mug.org #devConfLK2019#LKMUG
Letterkenny,Ireland
devConf LK 2019
Saturday, Feb 23rd
2019
9:00 AM – 5:00 PM LYIT, Port Road,
Letterkenny
LK
MUG
http://bit.ly/devConf
LK2019
Event Partners
JMeter who?
JMeter!!!
What happened to VS?
I once hear this load testing thing
Agenda
Load testing basics
JMeter Authoring
Distributed Load testing
Compare with Visual Studio & CLT
Load testing basics
Performance is
a Feature
«there are two
kinds of websites:
the quick and the
dead»
https://blog.codinghorror.com/performance-is-a-feature/
Response time
0.1 second is about the limit for having the user
feel that the system is reacting instantaneously,
meaning that no special feedback is necessary
except to display the result.
1.0 second is about the limit for the user's flow of
thought to stay uninterrupted, even though the
user will notice the delay. Normally, no special
feedback is necessary during delays of more than
0.1 but less than 1.0 second, but the user does lose
the feeling of operating directly on the data.
10 seconds is about the limit for keeping the user's
attention focused on the dialogue. For longer
delays, users will want to perform other tasks
while waiting for the computer to finish, so they
should be given feedback indicating when the
computer expects to be done. Feedback during
the delay is especially important if the response
time is likely to be highly variable, since users will
then not know what to expect.
Miller, R. B. (1968).
Response time in man-
computer
conversational
transactions. Proc. AFIPS
Fall Joint Computer
Conference Vol. 33, 267-
277.
Queueing and Resource depletion
Client
SUT
Dep1
Dep2Client
Test Rig
Testing implies monitoring
Client
SUT
Dep1
Dep2Client
Monitor
Healthy
behaviour
+Error rates
+Tools errors
Relative Load
Latency
Required threshold
Max N seconds
100%60%
Throughput
Usage
JMeter Authoring
What is JMeter?
Buy one get three
Script editor Visual Studio Web Test
Runner Visual Studio Load Test
Distributed runner Azure Cloud load testing
Does not manage the test rig for you
Free & widely used
Apache JMeter may be used to test performance both on
static and dynamic resources, Web dynamic applications.
It can be used to simulate a heavy load on a server, group of
servers, network or object to test its strength or to analyze
overall performance under different load types.
JMeter basics
https://jmeter.apache.org/
JDK 8 / 9
I prefer XCopy deploy
GUI, -n, server
yeah, docker too
Recording
Collecting and analysing results
No Metrics
Tokens and parametrization
Scenarios and distributions
Demo
JMeter Templates
Recording
Elements of a script
XML script (just like VS)
In summary
Record using browser
Rinse and refactor
Throw garbage away
Parametrize and extract data
External data feeds
esp. Users
Distributed Load Testing
Setting up a test rig (1/2)
Create the VMs
Set environment variables for Java and JMeter; e.g. using a script like jcmd:
Title Java Environment
set JAVA_HOME=%~dp0jdk
set PATH=%PATH%;%JAVA_HOME%bin;%~dp0bin
cmd /k cls
Client (controller) jmeter.properties
remote_hosts=TEST-RIG1,TEST-RIG2,TEST-RIG3
server_port=4000
client.rmi.localport=4001
server.rmi.port=4000
server.rmi.localport=4001
server.rmi.ssl.disable=true
The last one is necessary to work around this bug
https://bz.apache.org/bugzilla/show_bug.cgi?id=62463
Setting up a test rig (2/2)
The Server (rig) jmeter.properties should have
server_port=4000
client.rmi.localport=4001
server.rmi.port=4000
server.rmi.localport=4001
server.rmi.ssl.disable=true
Open firewall ports
Invoke-Command -ComputerName "TEST-RIG0","TEST-RIG1","TEST-RIG2","TEST-RIG3" -
ScriptBlock {
New-NetFirewallRule -DisplayName 'JMeter Server' -LocalPort "4000-4010" -
Profile Any -Direction Inbound -Protocol 'TCP' -Action 'Allow' -Enabled 'True'
New-NetFirewallRule -DisplayName 'JMeter Server' -LocalPort "4000-4010" -
Profile Any -Direction Outbound -Protocol 'TCP' -Action 'Allow' -Enabled
'True’
}
Run test using rig
Server (rig)
jmeter-server -Djava.rmi.server.hostname=%COMPUTERNAME%
Use Task Scheduler
https://github.com/zloeber/Powershell/blob/master/Supplemental/Add-
UserToLoginAsBatch.ps1
Client (controller)
jmeter -n -t …Test.jmx -l …Test.log -r
Tune Java memory
Integrate in a pipeline
Cloud-based Apache JMeter Load Test task
Convert JMeter XML to JUnit
In summary
DIY
Choose between
SSL and firewall
Allocate resources
Get from a service
Visual Studio
Why JMeter is interesting to a Visual Studio developer?
Visual Studio 2019 will be the last version with load test
features.
https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-
preview#test-tools
https://devblogs.Microsoft.com/devops/cloud-based-load-testing-eol
Comparison
Visual Studio + CLT
CA BlazeMeter for an automated cloud rig
Gatling (also Java-based)
In summary
Tools are similar
Process always the same
Create / Edit
Run
Analyse
Repeat
Conclusion
Bio in pictures
32
giulio.dev@casavian.eu
@giulio_vian
https://www.slideshare.net/giuliov
https://tfsaggregator.github.io
http://blog.casavian.eu/
Hardware spec:
1KB RAM (upg. 16KB)
4KB ROM
First computer Companies Communities
Donegal
Bibliography & References
https://jmeter.apache.org/
http://www.slideshare.net/giuliov/presentations
http://www.testautomationguru.com/jmeter/
https://docs.microsoft.com/en-us/vsts/build-release/tasks/test/cloud-
based-load-test
Performance Testing Guidance for Web Applications
https://msdn.microsoft.com/en-us/library/bb924375.aspx
AWS Well-Architected Framework - Performance Efficiency Pillar
https://www.amazon.com/dp/B01MSSLHBX
http://www.brendangregg.com/linuxperf.html
https://github.com/giuliov/Stating-the-obvious/
34
Bibliography (2)
Writing High-Performance .NET Code —
Ben Watson (Ben Watson)
https://www.amazon.it/Writing-High-
Performance-NET-Code-
Watson/dp/0990583430/
Time Is Money: The Business Value of
Web Performance — Tammy Everts
(O'Reilly Media)
https://www.amazon.com/Time-Money-
Business-Value-Performance/dp/1491928743
35
Bibliography (3)
Software Performance and Scalability: A
Quantitative Approach — Henry H. Liu
(Wiley)
https://www.amazon.com/Software-
Performance-Scalability-Quantitative-
Approach/dp/0470462531
Continuous Delivery with Windows and .NET
— Matthew Skelton and Chris O'Dell
(O'Reilly)
http://www.oreilly.com/webops-
perf/free/continuous-delivery-with-windows-and-
net.csp
36
Bibliography (4)
Continuous Delivery: Reliable Software
Releases through Build, Test, and
Deployment Automation — J.Humble,
D.Farley (Addison-Wesley)
https://www.amazon.com/Continuous-
Delivery/dp/0321601912/
The DevOps Handbook — G.Kim, P.Debois,
J.Willis, J.Humble (IT Revolution Press)
https://www.amazon.com/DevOps-Handbook-
World-Class-Reliability-
Organizations/dp/1942788002/
37
The End

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How's relevant JMeter to me - DevConf (Letterkenny)

  • 1. www.lk-mug.org #devConfLK2019#LKMUG Letterkenny,Ireland How’s relevant JMeter to me? Giulio Vian – DevOps Lead – Glass, Lewis & Co.
  • 2. www.lk-mug.org #devConfLK2019#LKMUG Letterkenny,Ireland devConf LK 2019 Saturday, Feb 23rd 2019 9:00 AM – 5:00 PM LYIT, Port Road, Letterkenny LK MUG http://bit.ly/devConf LK2019 Event Partners
  • 3. JMeter who? JMeter!!! What happened to VS? I once hear this load testing thing
  • 4. Agenda Load testing basics JMeter Authoring Distributed Load testing Compare with Visual Studio & CLT
  • 6. Performance is a Feature «there are two kinds of websites: the quick and the dead» https://blog.codinghorror.com/performance-is-a-feature/
  • 7. Response time 0.1 second is about the limit for having the user feel that the system is reacting instantaneously, meaning that no special feedback is necessary except to display the result. 1.0 second is about the limit for the user's flow of thought to stay uninterrupted, even though the user will notice the delay. Normally, no special feedback is necessary during delays of more than 0.1 but less than 1.0 second, but the user does lose the feeling of operating directly on the data. 10 seconds is about the limit for keeping the user's attention focused on the dialogue. For longer delays, users will want to perform other tasks while waiting for the computer to finish, so they should be given feedback indicating when the computer expects to be done. Feedback during the delay is especially important if the response time is likely to be highly variable, since users will then not know what to expect. Miller, R. B. (1968). Response time in man- computer conversational transactions. Proc. AFIPS Fall Joint Computer Conference Vol. 33, 267- 277.
  • 8. Queueing and Resource depletion Client SUT Dep1 Dep2Client
  • 9. Test Rig Testing implies monitoring Client SUT Dep1 Dep2Client Monitor
  • 10. Healthy behaviour +Error rates +Tools errors Relative Load Latency Required threshold Max N seconds 100%60% Throughput Usage
  • 12. What is JMeter? Buy one get three Script editor Visual Studio Web Test Runner Visual Studio Load Test Distributed runner Azure Cloud load testing Does not manage the test rig for you Free & widely used Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications. It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.
  • 13. JMeter basics https://jmeter.apache.org/ JDK 8 / 9 I prefer XCopy deploy GUI, -n, server yeah, docker too
  • 19. Demo JMeter Templates Recording Elements of a script XML script (just like VS)
  • 20. In summary Record using browser Rinse and refactor Throw garbage away Parametrize and extract data External data feeds esp. Users
  • 22. Setting up a test rig (1/2) Create the VMs Set environment variables for Java and JMeter; e.g. using a script like jcmd: Title Java Environment set JAVA_HOME=%~dp0jdk set PATH=%PATH%;%JAVA_HOME%bin;%~dp0bin cmd /k cls Client (controller) jmeter.properties remote_hosts=TEST-RIG1,TEST-RIG2,TEST-RIG3 server_port=4000 client.rmi.localport=4001 server.rmi.port=4000 server.rmi.localport=4001 server.rmi.ssl.disable=true The last one is necessary to work around this bug https://bz.apache.org/bugzilla/show_bug.cgi?id=62463
  • 23. Setting up a test rig (2/2) The Server (rig) jmeter.properties should have server_port=4000 client.rmi.localport=4001 server.rmi.port=4000 server.rmi.localport=4001 server.rmi.ssl.disable=true Open firewall ports Invoke-Command -ComputerName "TEST-RIG0","TEST-RIG1","TEST-RIG2","TEST-RIG3" - ScriptBlock { New-NetFirewallRule -DisplayName 'JMeter Server' -LocalPort "4000-4010" - Profile Any -Direction Inbound -Protocol 'TCP' -Action 'Allow' -Enabled 'True' New-NetFirewallRule -DisplayName 'JMeter Server' -LocalPort "4000-4010" - Profile Any -Direction Outbound -Protocol 'TCP' -Action 'Allow' -Enabled 'True’ }
  • 24. Run test using rig Server (rig) jmeter-server -Djava.rmi.server.hostname=%COMPUTERNAME% Use Task Scheduler https://github.com/zloeber/Powershell/blob/master/Supplemental/Add- UserToLoginAsBatch.ps1 Client (controller) jmeter -n -t …Test.jmx -l …Test.log -r Tune Java memory
  • 25. Integrate in a pipeline Cloud-based Apache JMeter Load Test task Convert JMeter XML to JUnit
  • 26. In summary DIY Choose between SSL and firewall Allocate resources Get from a service
  • 28. Why JMeter is interesting to a Visual Studio developer? Visual Studio 2019 will be the last version with load test features. https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes- preview#test-tools https://devblogs.Microsoft.com/devops/cloud-based-load-testing-eol
  • 29. Comparison Visual Studio + CLT CA BlazeMeter for an automated cloud rig Gatling (also Java-based)
  • 30. In summary Tools are similar Process always the same Create / Edit Run Analyse Repeat
  • 34. Bibliography & References https://jmeter.apache.org/ http://www.slideshare.net/giuliov/presentations http://www.testautomationguru.com/jmeter/ https://docs.microsoft.com/en-us/vsts/build-release/tasks/test/cloud- based-load-test Performance Testing Guidance for Web Applications https://msdn.microsoft.com/en-us/library/bb924375.aspx AWS Well-Architected Framework - Performance Efficiency Pillar https://www.amazon.com/dp/B01MSSLHBX http://www.brendangregg.com/linuxperf.html https://github.com/giuliov/Stating-the-obvious/ 34
  • 35. Bibliography (2) Writing High-Performance .NET Code — Ben Watson (Ben Watson) https://www.amazon.it/Writing-High- Performance-NET-Code- Watson/dp/0990583430/ Time Is Money: The Business Value of Web Performance — Tammy Everts (O'Reilly Media) https://www.amazon.com/Time-Money- Business-Value-Performance/dp/1491928743 35
  • 36. Bibliography (3) Software Performance and Scalability: A Quantitative Approach — Henry H. Liu (Wiley) https://www.amazon.com/Software- Performance-Scalability-Quantitative- Approach/dp/0470462531 Continuous Delivery with Windows and .NET — Matthew Skelton and Chris O'Dell (O'Reilly) http://www.oreilly.com/webops- perf/free/continuous-delivery-with-windows-and- net.csp 36
  • 37. Bibliography (4) Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation — J.Humble, D.Farley (Addison-Wesley) https://www.amazon.com/Continuous- Delivery/dp/0321601912/ The DevOps Handbook — G.Kim, P.Debois, J.Willis, J.Humble (IT Revolution Press) https://www.amazon.com/DevOps-Handbook- World-Class-Reliability- Organizations/dp/1942788002/ 37

Editor's Notes

  1. https://blog.codinghorror.com/performance-is-a-feature/
  2. Debug Sampler generates a sample containing the values of all JMeter variables and/or properties.
  3. https://medium.com/@ganeshsirsi/configuring-jmeter-tests-in-vsts-tfs-azure-devops-and-publishing-results-dcdd7b451cb9