Load Testing using Continuous Integration tools
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The document discusses how CommerceHub integrated NeoLoad load testing into their continuous integration process. Some key benefits included making load testing easier to execute regularly, monitoring results through Jenkins, and collaborating by sharing load test reports between team members. Common pitfalls to avoid when using this approach are only testing the "happy path" without variations, comparing results over long periods of time, and creating bottlenecks by requiring involvement from specific roles.
![About CommerceHub
Hosted services for e-commerce & retail.
[B2B] Connection between 200+ retailers and 8,900 brands/distributors.
Translate & route drop shipment orders amongst business partners.
Goal: Facilitate e-commerce sales growth for our customers
Processed $10bil GrossMerchValue for our customers in 2014 [33.7mil orders]
Why performance matters to us:
“retail busy season”: Black Friday Christmas
38k+ users 8.25 mil logins/yr
2 mil hits per month on most visited web page](https://image.slidesharecdn.com/commercehub-loadtestingusingci-151013193359-lva1-app6891/85/Load-Testing-using-Continuous-Integration-tools-3-320.jpg)
![A better Load Test environment
Properly designed for load testing @ high volume [150+ users]
Used CI to automate deployment & configuration of this env
On-premise Load Generators
Web cluster behind Load Balancer](https://image.slidesharecdn.com/commercehub-loadtestingusingci-151013193359-lva1-app6891/85/Load-Testing-using-Continuous-Integration-tools-11-320.jpg)
![Load Testing + Agile Teams
How could we include LT more often, under Agile process?
Manual performance testing? [+leverage firebug, Yslow, Fiddler, etc.]
Collect performance metrics while we run our automated regression?
WebPagetest.org?
Schedule NeoLoad to run using Cron jobs?
Schedule NeoLoad to run using NeoLoad internal scheduler?
Schedule Neoload to run using CI? Hmmmm… we do have Jenkins.](https://image.slidesharecdn.com/commercehub-loadtestingusingci-151013193359-lva1-app6891/85/Load-Testing-using-Continuous-Integration-tools-21-320.jpg)
![Jenkins NeoLoad plugin v4.2 [Nov 2013]
Retrieve Neoload
results back into
to Jenkins
Display Trends:
Avg Response
Time & Error Rate
Maintain build
history & preserve
Neoload reports
for each build.](https://image.slidesharecdn.com/commercehub-loadtestingusingci-151013193359-lva1-app6891/85/Load-Testing-using-Continuous-Integration-tools-22-320.jpg)
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Load Testing using Continuous Integration tools
- 1. LOAD TESTING using continuous integration tools Richard Pitts Sr. Load Test Engineer | CommerceHub
- 2. Agenda Our experience adding NeoLoad to our Continuous Integration process. 1. Benefits of using CI to run NeoLoad 2. Why we run NeoLoad using CI 3. How NeoLoad + CI has helped us 4. Common pitfalls to avoid 5. Getting started + best practices
- 3. About CommerceHub Hosted services for e-commerce & retail. [B2B] Connection between 200+ retailers and 8,900 brands/distributors. Translate & route drop shipment orders amongst business partners. Goal: Facilitate e-commerce sales growth for our customers Processed $10bil GrossMerchValue for our customers in 2014 [33.7mil orders] Why performance matters to us: “retail busy season”: Black Friday Christmas 38k+ users 8.25 mil logins/yr 2 mil hits per month on most visited web page
- 4. Benefits of using CI to run NeoLoad Same benefit as any CI Job Easy to execute Easy to schedule Easy to monitor Build history Results in Workspace
- 5. Benefits of using NeoLoad Plugin Retrieve Neoload results back into to Jenkins Display Trends: Avg Response Time & Error Rate Maintain build history & preserve Neoload reports for each build.
- 6. Benefits of using NeoLoad Plugin Collaborate. Easy to share. Link to the build.
- 7. Why you should run NeoLoad using CI If load testing occurs less frequently than desired New development methodologies more frequent releases Scheduled automation avoids waiting on humans, keeps a faster pace. Our Story… before NeoLoad with NeoLoad with NeoLoad plus CI
- 8. Load Testing before NeoLoad • Close to the release date • Late testing Late Discoveries Delayed Releases. feature complete build Monthly releases Performance test @ end of dev cycle
- 9. Load Testing before NeoLoad An automated tool could help us load test. Hopefully one that would inspire us to load test earlier + more often. Started to Trial + Assess several load testing tools
- 10. NeoLoad pilot Began recording & designing our Neoload scripts
- 11. A better Load Test environment Properly designed for load testing @ high volume [150+ users] Used CI to automate deployment & configuration of this env On-premise Load Generators Web cluster behind Load Balancer
- 12. NeoLoad pilot: real progress Started generating performance test results
- 13. Success implement an automated load testing tool library of scripts now easier to include load testing for releases load testing more things, more often stockpile load test results for future benchmark comparisons
- 14. NeoLoad + Waterfall: How to? So, how did we regularly include NeoLoad tests as part of our waterfall releases?
- 15. NeoLoad + Waterfall: Option 1 Three options to include Neoload testing for a release: 1) author new NeoLoad scripts designed to target specific concerns. Record/Playback Configure for multi-user concurrency & unique data Run scripts Share results
- 16. NeoLoad + Waterfall: Option 2 Three options to include Neoload testing for a release: 2) run existing NeoLoad scripts + compare w/ previous release results Try/validate the scripts Update/fix outdated scripts Run scripts Share results
- 17. NeoLoad + Waterfall: Option 3 Three options to include Neoload testing for a release: 3) run NeoLoad scripts on project vs mainline branches, comparing results Run scripts on mainline branch to obtain baseline results Run scripts on project branch Compare project results to baseline results Is performance of the project branch better/no worse/worse than mainline
- 18. Results: Still a Waterfall Performance testing still occurred @ end of dev cycles Limited time to re-work performance issues before release dates. Often, the tests were short samples due to time constraints. The most recent set of results for comparison was often many weeks old. Centralized around performance engineer (bottleneck risk) Sometimes it was “testing for the sake of testing”
- 19. Meanwhile: Along comes Agile Continuous Integration of code Automated CI builds Continuous Delivery to test environments Automated regressions using CI builds Cross functional team members “Everyone is responsible for quality” approach Result: Sped up development + shortened our dev lifecycle! Release more frequently
- 20. Load Testing + Agile Teams Team mindset: “Performance is everybody's job” But, most team members had little load testing experience. Result: Still had all of the same problems getting Load Tests done. Completed “in the margins” by perf engineer + agile team member. Relied upon Ops and/or performance engineer (bottleneck risk) Load testing wasn’t keeping pace with our Agile teams. Needed a way to bake Load Testing into our Agile process.
- 21. Load Testing + Agile Teams How could we include LT more often, under Agile process? Manual performance testing? [+leverage firebug, Yslow, Fiddler, etc.] Collect performance metrics while we run our automated regression? WebPagetest.org? Schedule NeoLoad to run using Cron jobs? Schedule NeoLoad to run using NeoLoad internal scheduler? Schedule Neoload to run using CI? Hmmmm… we do have Jenkins.
- 22. Jenkins NeoLoad plugin v4.2 [Nov 2013] Retrieve Neoload results back into to Jenkins Display Trends: Avg Response Time & Error Rate Maintain build history & preserve Neoload reports for each build.
- 23. Gains from NeoLoad + CI Daily performance “pulse”
- 24. Gains from NeoLoad + CI JUnit test results based on SLA profiles
- 25. Gains from NeoLoad + CI Collaborate. Easy to share. Link to the build. Increased Collaboration.
- 26. NeoLoad Tests: Controlled by CI Scheduled nightly.
- 27. Lessons learned Pitfalls to Avoid: Using only “happy path” scripts Comparing results over long gaps time risky Comparing multiple short samples inaccurate Swap sharing the Load Testing environment bottlenecks Requiring involvement from Ops or perf. engineer bottlenecks
- 28. Your turn! Run NeoLoad using Continuous Integration
- 29. Step1: get a CI Server, setup for NeoLoad We used an existing remote Jenkins server. Use your existing remote CI server or install Jenkins along side NeoLoad.
- 30. Step2: add CI step to run NeoLoadCmd Neotys’ Jenkins Integration Guide explains how to configure –options
- 31. Step3: Install NeoLoad plugin for Jenkins
- 32. Step4: retrieve Neoload results Jenkins Integration Guide explains how to incorporate NeoLoad results
- 33. Where to go from here? Best practices & Pro Tips: Incorporate performance testing into every DevOps team Intelligent testing: only run load scripts that test the code that was changed Reduce the amount of time & resources needed for load testing For “hardening sprints”- setup a Stress test scenario. Run on-demand using CI Make use of email alerts and chat notifications in CI
- 34. Best Practices: Setup SLA profiles Setup SLA profiles so pass/fail criteria are bubbled up to CI results
- 35. Best Practices: Increase collaboration
- 36. Best Practices: Smoke test Smoke test first (low volume), then run full Load Test
- 37. Richard Pitts We are hiring: [email protected] http://www.commercehub.com/about-us/careers/ Share with me: How are you using CI to drive your NeoLoad process? Let me know. Learn more: http://www.neotys.com/introduction/neoload-continuous-integration.html http://www.neotys.com/webcast/Continuous-Performance-Testing-with-NeoLoad.html https://wiki.jenkins-ci.org/display/JENKINS/NeoLoad+Plugin https://github.com/jenkinsci/neoload-plugin
Editor's Notes
- #4: 38,000+ active users (out of 86k) 2 million hits per month on most popular page. Dashboard. (On AVG) For busy season, we expect hits on that page to be higher by a factor of 2 or 2.5
- #5: CI tools themselves bring lots of value to the table.
- #6: Available starting with Version 4.2 (Nov 2013)
- #7: Archived report for every build. Easy to share Neoload test results. Provide a link to the build and everyone on the team, plus other stakeholders, can view Neoload reports and trends.
- #9: Occasionally with Jmeter, but mostly manual tests
- #10: Adopted Neoload and began our journey into Automated Performance Testing Technology Radar by ThoughtWorks (Hold, Assess, Trial, Adopt)
- #11: Record/Playback, configure for concurrency and unique data, add error handling
- #24: Build History + Test result trend graphs help us keep a daily “pulse” of the performance of our mainline branch We finally have constant monitoring of application performance.. Trends over several builds SLA pass/fall criteria bubble up to CI results
- #25: SLA pass/fall criteria bubble up to CI results
- #26: Archived report for every build. Easy to share Neoload test results. Provide a link to the build and everyone on the team, plus other stakeholders, can view Neoload reports and trends.
- #28: Drawbacks, Tradeoffs, and Fallacies to avoid
- #33: Add Post-build actions to incorporate Neoload Results, and archive results. If using SLAs, also Publish Junit test result XMLs
- #36: First thing every morning, check the status of nightly Jenkins job in a HipChat room