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Concurrent Class
10/2/2013 11:30:00 AM

"Rapid Performance Testing: No
Load Generation Required"
Presented by:
Scott Barber
PerfTestPlus, Inc.

Brought to you by:

340 Corporate Way, Suite 300, Orange Park, FL 32073
888-268-8770 ∙ 904-278-0524 ∙ sqeinfo@sqe.com ∙ www.sqe.com
Scott Barber
PerfTestPlus, Inc.
CTO of PerfTestPlus and recognized worldwide as a thought-leader in software system
performance and testing, Scott Barber describes himself as a “tester, author, speaker, disrupter,
and dad.” Scott is the author of Web Load Testing for Dummies and co-/contributing author of
Performance Testing Guidance for Web Applications, Beautiful Testing, and How to Reduce the
Cost of Testing.
9/19/2013

Rapid Performance Testing:
No Load Generation Required
1

© PerfTestPlus, Inc.

By:

Scott Barber
Chief Performance Evangelist
SmartBear Software, Inc.

1
9/19/2013

Chief Performance Evangelist
SmartBear Software, Inc.
scott.barber@smartbear.com
@sbarber

Co-Founder: Workshop On Performance and Reliability
www.performance-workshop.org
Author:

Co-Author:

Contributing Author:

Books: www.perftestplus.com/pubs
About me: about.me/scott.barber

Performance Testing

2
9/19/2013

What is Performance?
System or application characteristics related to:
Speed:
- responsiveness
- user experience
Scalability:
- capacity
- load
- volume
Stability:
- consistency
- reliability
- stress

What is Performance Testing?
Testing designed to:
Inform software system optimization by
balancing:
• Cost
• Time to market
• Capacity
while remaining focused on the quality of service
to system users.

3
9/19/2013

Performance vs. Load Testing?

The Performance Lifecycle is:
Conception to Headstone
Not
Cradle to Grave

4
9/19/2013

Who is Responsible?

Where does it fit in the SDLC?

5
9/19/2013

Personally, I’m fond of…
Performant Application Delivery

© PerfTestPlus, Inc.

Preventing Poor Performance with
a little work…
every day…
from every one.
© PerfTestPlus, Inc.

6
9/19/2013

© PerfTestPlus, Inc.

© PerfTestPlus, Inc.

7
9/19/2013

Key Points
•
•
•
•

Entire Lifecycle
Entire Team Focused
Individual, Role, & Team Accountability & Responsibility
Continuous & Collaborative

“DevOps”

•
•
•
•
•
•
•

Code Profiling
Requirements Revision
Design Validation
Budgets
Units & Components
Monitoring
Tuning

Perf Team

•
•
•
•
•

Load/Stress Testing
Environment Config
Capacity Planning
Concurrency Checks
Situation Analysis

Individual

•
•
•
•

Snapshots
Comparisons
Niche Concerns
Mini-Field Studies
(UAT)
• “What-if…”

© PerfTestPlus, Inc.

© PerfTestPlus, Inc.

8
9/19/2013

RPT is:
Inspired by Rapid Software Testing
Consistent with Rapid Software Testing themes
Sanctioned by James Bach, Michael Bolton & the RST
instructors to as a specific implementation of the
Rapid Testing Methodology

For more information about RST, visit:
http://www.satisfice.com/info_rst.shtml

Evolved from:
“What have we got?
What do we want?
How do we get there…?”
--Bob Barber (Scott’s dad)

… as quickly, simply, and
cheaply as possible?

9
9/19/2013

…a common man’s way of
expressing the problem solving
approach that classical engineers
employ.
• Given: “What have we got?”
• Find: “What do we want?”
• Solve: “How do we get there?”

What is it?
An approach to respond to a specific
performance-related question after 4 or fewer
hours of team effort with 1 or more of:
A) The answer
B) A partial answer
•
•

To determine the value of additional effort
The level of effort to provide the answer

C) Better questions to address the underlying
concern

10
9/19/2013

Conceptual Approach
1. Receive Question
•
•

2.
3.
4.
5.
6.

Clarify the question
Understand the driver(s) behind the question
Generate Test Coverage Outline (TCO) (~20 min)
•
Simplest path to (partial) answer(s)
•
Comprehensive path to (partial) answer(s)
Transform TCO into Rapid Strategy (~20 min)
•
Only tasks that fit in time box
•
Stick to tasks requiring available resources
Execute Strategy (~2.5 hrs)
•
Snapshots are your friends
•
Anecdotal is sufficient
Consolidate/Analyze Data (~30 min)
•
Identify patterns
•
Confirm patterns (time permitting)
Report Results (~20 min)
•
Answer(s) / Time or Effort to get answer(s)
•
Follow-on questions of interest

~4 hr

© PerfTestPlus, Inc.

Addendum

11
9/19/2013

The Bottom Line

© PerfTestPlus, Inc.

Questions?

12
9/19/2013

Demo & Resources
Scott’s “Secret RPT CheatSheet”:
http://qikpad.co.uk/p/RPT
Rapid Strategy Examples:
http://www.mindmeister.com/267329863?t=UkxsZQfDKF
http://www.mindmeister.com/267331147?t=D8tCoW05En
http://www.mindmeister.com/267331063?t=AiWwSdPusv

Demo:
GTMetrix.com
WhichLoadsFaster.com

Contact Info
about.me/scott.barber

Chief Performance Evangelist
SmartBear Softwear, Inc.
E-mail:
Scott.barber@smartbear.com

Web Site:
SmartBear.com

Blog:
scott-barber.blogspot.com

Twitter:
@sbarber

13

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Rapid Performance Testing: No Load Generation Required

  • 1. W5 Concurrent Class 10/2/2013 11:30:00 AM "Rapid Performance Testing: No Load Generation Required" Presented by: Scott Barber PerfTestPlus, Inc. Brought to you by: 340 Corporate Way, Suite 300, Orange Park, FL 32073 888-268-8770 ∙ 904-278-0524 ∙ sqeinfo@sqe.com ∙ www.sqe.com
  • 2. Scott Barber PerfTestPlus, Inc. CTO of PerfTestPlus and recognized worldwide as a thought-leader in software system performance and testing, Scott Barber describes himself as a “tester, author, speaker, disrupter, and dad.” Scott is the author of Web Load Testing for Dummies and co-/contributing author of Performance Testing Guidance for Web Applications, Beautiful Testing, and How to Reduce the Cost of Testing.
  • 3. 9/19/2013 Rapid Performance Testing: No Load Generation Required 1 © PerfTestPlus, Inc. By: Scott Barber Chief Performance Evangelist SmartBear Software, Inc. 1
  • 4. 9/19/2013 Chief Performance Evangelist SmartBear Software, Inc. scott.barber@smartbear.com @sbarber Co-Founder: Workshop On Performance and Reliability www.performance-workshop.org Author: Co-Author: Contributing Author: Books: www.perftestplus.com/pubs About me: about.me/scott.barber Performance Testing 2
  • 5. 9/19/2013 What is Performance? System or application characteristics related to: Speed: - responsiveness - user experience Scalability: - capacity - load - volume Stability: - consistency - reliability - stress What is Performance Testing? Testing designed to: Inform software system optimization by balancing: • Cost • Time to market • Capacity while remaining focused on the quality of service to system users. 3
  • 6. 9/19/2013 Performance vs. Load Testing? The Performance Lifecycle is: Conception to Headstone Not Cradle to Grave 4
  • 7. 9/19/2013 Who is Responsible? Where does it fit in the SDLC? 5
  • 8. 9/19/2013 Personally, I’m fond of… Performant Application Delivery © PerfTestPlus, Inc. Preventing Poor Performance with a little work… every day… from every one. © PerfTestPlus, Inc. 6
  • 9. 9/19/2013 © PerfTestPlus, Inc. © PerfTestPlus, Inc. 7
  • 10. 9/19/2013 Key Points • • • • Entire Lifecycle Entire Team Focused Individual, Role, & Team Accountability & Responsibility Continuous & Collaborative “DevOps” • • • • • • • Code Profiling Requirements Revision Design Validation Budgets Units & Components Monitoring Tuning Perf Team • • • • • Load/Stress Testing Environment Config Capacity Planning Concurrency Checks Situation Analysis Individual • • • • Snapshots Comparisons Niche Concerns Mini-Field Studies (UAT) • “What-if…” © PerfTestPlus, Inc. © PerfTestPlus, Inc. 8
  • 11. 9/19/2013 RPT is: Inspired by Rapid Software Testing Consistent with Rapid Software Testing themes Sanctioned by James Bach, Michael Bolton & the RST instructors to as a specific implementation of the Rapid Testing Methodology For more information about RST, visit: http://www.satisfice.com/info_rst.shtml Evolved from: “What have we got? What do we want? How do we get there…?” --Bob Barber (Scott’s dad) … as quickly, simply, and cheaply as possible? 9
  • 12. 9/19/2013 …a common man’s way of expressing the problem solving approach that classical engineers employ. • Given: “What have we got?” • Find: “What do we want?” • Solve: “How do we get there?” What is it? An approach to respond to a specific performance-related question after 4 or fewer hours of team effort with 1 or more of: A) The answer B) A partial answer • • To determine the value of additional effort The level of effort to provide the answer C) Better questions to address the underlying concern 10
  • 13. 9/19/2013 Conceptual Approach 1. Receive Question • • 2. 3. 4. 5. 6. Clarify the question Understand the driver(s) behind the question Generate Test Coverage Outline (TCO) (~20 min) • Simplest path to (partial) answer(s) • Comprehensive path to (partial) answer(s) Transform TCO into Rapid Strategy (~20 min) • Only tasks that fit in time box • Stick to tasks requiring available resources Execute Strategy (~2.5 hrs) • Snapshots are your friends • Anecdotal is sufficient Consolidate/Analyze Data (~30 min) • Identify patterns • Confirm patterns (time permitting) Report Results (~20 min) • Answer(s) / Time or Effort to get answer(s) • Follow-on questions of interest ~4 hr © PerfTestPlus, Inc. Addendum 11
  • 14. 9/19/2013 The Bottom Line © PerfTestPlus, Inc. Questions? 12
  • 15. 9/19/2013 Demo & Resources Scott’s “Secret RPT CheatSheet”: http://qikpad.co.uk/p/RPT Rapid Strategy Examples: http://www.mindmeister.com/267329863?t=UkxsZQfDKF http://www.mindmeister.com/267331147?t=D8tCoW05En http://www.mindmeister.com/267331063?t=AiWwSdPusv Demo: GTMetrix.com WhichLoadsFaster.com Contact Info about.me/scott.barber Chief Performance Evangelist SmartBear Softwear, Inc. E-mail: Scott.barber@smartbear.com Web Site: SmartBear.com Blog: scott-barber.blogspot.com Twitter: @sbarber 13