A Beginner's Guide to Application Load Testing

Load Testing w/ JMeter
Birgit Pauli-Haack Pauli Systems on Twitter @bph

Enough about me.
Coldfusion programming as volunteer for
Naples Free-Net since 1999
Project Manager HUD-HMIS Collier County 2004 - 2007
Pauli Systems was founded in 2002 Mostly CF development, CMS, LMS, Online Publishing, Server Admin services,Migration & Integration APIs,Open-source implementation, Mobile Web / Augmented Reality, WordPress. Naples, Florida since 1998 Before Munich,Germany

Over the next 40 min
A Story
What exactly do we need to test?
How to create traffic - JMeter
Demos
Analyze Behavior
Resources
Q & A

The Story of a GoLive
Redesign of a relative high volume Business News site.
Upgrade CF 7.01 to CF 9.01
Upgrade from Windows 2003 to Windows 2008
Migrate front end code base 2003 to 2011
Integrate stand alone code 2005 & 2007
All into one Framework: Fusebox 5.5

First attempt of GoLive May 7 8:45am
Rollback to old server May 7 noon.

What Happened?
What could have been the cause?
Database server?
Coldfusion Code?
SQL Queries?
File operations?
Systems configuration?
Configuration CF Admin?
3rd Party CFX Tags
Java Engine?
We need better tools.

What do I mean when I talk about load testing?
Create Site traffic on your site, and analyze behavior to find
Bottle necks
So how are your users using site?
1) Many page requests at the same time
2) Which Pages are hit the most?

What is a normal amount of requests per second?
Google analytics: Page Requests per hour Peak: 51,856 per hour = 14 request/second

Which pages?
This is a news site. - Homepage - Article pages - Media pages - Archives What is the ratio? Example: Variations of Homepage: 42 %

Using JMeter
After installation
Create a Test Plan
Add components
Run it
Look Reports

Using JMeter
Summary Report
Throughput: 47.5 Request per second Per hour: 171,000

Original Question
How many users can we serve before we need more power and muscle on our server environment? Good question!

Tool: FusionReactor
There are other tools: Seefusion

Request per second

Average Execution Times

Average JDBC Execution time

CPU Usage
80 requests per second trigger 80 to 100% CPU usage ~ Max load ~ 3,456,000 Pages per 10 hrs Period

How many visitors?
- For this particular site - for this particular JMeter Test Plan - 80 requests per second - 80 to 100% CPU usage - approx: 3,456,000 Pages per 12 hrs Period Average of 2.7 page view per visitor Serve up to 1,280 Mio Vistors per day. (12 hrs Period)

DemoJmeter
Set-up JMeter Add a plan Add a thingy Add a report Add a graph Simple. More complex: user/name password Record sessions. Through Firefox. Increase traffic.

Apache JMeter
http://jakarta.apache.org/jmeter/
Fusion Reactor
http://www.fusion-reactor.com/fr/
More Tools
CF411 Charlie Arehardt -
Keyword:Page Performance Test
http://carehart.org/cf411/#pageperftest
Resources: Tools

Resources: How-Tos
YouTube: Website Stress Testing using JMeter:
http://www.youtube.com/watch?v=8NLeq-QxkSw
Stuart Marsh, beardygeek.com
CFMeetup session Kurt Wiersma:
Search for Load Testing with JMeter
May 2010
http://www.meetup.com/coldfusionmeetup/pages/Recordings_of_the_ColdFusion_Meetup/

Testing load balanced environment through distribute/remote testing.
http://jakarta.apache.org/jmeter/usermanual/jmeter_distributed_testing_step_by_step.pdf
Improve the quality of your JMeter scripts
http://www.javaworld.com/javaworld/jw-07-2005/jw-0711-jmeter.html?page=1
Resources: Articles

[email_address]
Twitter: @paulisystems
Voice/text: 239-331-5878
www.paulisystems.net
www.idxtools.com (@bph blog)

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A Beginner's Guide to Application Load Testing

by Birgit Pauli-Haack

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