The document is a presentation by Jez Humble on the secrets of high performance IT. Some of the key points discussed include: - Chef is an automation and delivery platform used to build, manage, and deploy infrastructure and applications. - The highest correlations with IT performance are having code/configurations in version control, getting failure alerts from monitoring, daily code merges by developers, and having win-win relationships between dev and ops teams. - Characteristics of high performing IT include proactive monitoring, peer-reviewed change approval, version controlling everything, high trust culture between dev and ops. - Continuous integration, deployment pipelines, and building quality in from the start are important concepts. - Organizational culture

1. The Secrets of High
Performance IT
with Jez Humble

2. Today’s Drive-In Speaker - Jez Humble
2
Jez Humble
@jezhumble
• VP at Chef
• Lecturer at UC Berkeley
• Author of Continuous Delivery
• Author of Lean Enterprise

3. @jezhumble
serena devops drive-in| 21 january 2014
the secrets of high performance it

4. what is chef?
Chef is an automation and delivery platform
born in the service of velocity and scale:
Build ManageDeploy In the data center
+ in the cloud
Infrastructure
+ applications

5. scrum-
fall
water-

6. time to restore service
lead time for changes
release frequency
change fail rate
it performance
http://bit.ly/2014-devops-report

7. highest correlation with it performance
• “Our code, app configurations and system
configurations are in a version control system”
• “We get failure alerts from logging and
monitoring systems”
• “Developers merge their code into trunk daily”
• “When development and operations teams
interact, the outcome is generally win/win.”
• “Developers break up large features into small,
incremental changes.”
http://bit.ly/2014-devops-report

8. proactive monitoring
peer-reviewed change approval process
version control everything
win-win relationship between dev and ops
high trust organizational culture
top predictors of it performance
http://bit.ly/2014-devops-report

9. @jezhumble
high trust culture
Westrum, “A Typology of Organizational Cultures”,
Qual Saf Health Care 2004; 13 (Suppl II):ii22-ii27

10. firefighting
culture
risk management theatre
big balls of mud
major barriers

11. @jezhumble
changing culture
http://www.thisamericanlife.org/radio-archives/episode/403/nummi
http://sloanreview.mit.edu/article/how-to-change-a-culture-lessons-from-nummi/
Schein, The Corporate Culture Survival Guide

12. the production line
http://www.flickr.com/photos/toyotauk/4711057997/

13. TOYODA AUTOMATIC
LOOM TYPE G
12
“Since the loom stopped when a
problem arose, no defective
products were produced. This
meant that a single operator could
be put in charge of numerous
looms, resulting in a tremendous
improvement in productivity.”
http://www.toyota-global.com/company/vision_philosophy/toyota_production_system/jidoka.html

14. build quality in
“Cease dependence on
mass inspection to
achieve quality. Improve
the process and build
quality into the product
in the first place”
W. Edwards Deming

15. @jezhumble
continuous integration
Jason Leyba | http://www.infoq.com/presentations/google-test-automati

17. deployment pipeline
Delivery team Version control Build & unit
tests
Automated
acceptance tests
User acceptance
tests
Release
Check in
Feedback
Trigger
Check in
Feedback
Trigger
Trigger
Check in
Trigger
Trigger
Approval
Approval
Feedback
Feedback
Feedback
Feedback

18. risk management theatre
Rachel Schipul | http://www.freneticore.net/photos/238/in/6/

20. Margaret Hamilton
Lead Apollo Flight Software Designer;
Director, Software Engineering Division,
MIT Instrumentation Laboratory.
big batches

22. organizational change

23. organizational change

24. architectural change

25. “I think building this culture is the key to
innovation. Creativity must flow from
everywhere. Whether you are a summer intern
or the CTO, any good idea must be able to seek
an objective test, preferably a test that exposes
the idea to real customers. Everyone must be
able to experiment, learn, and iterate.”
http://glinden.blogspot.com/2006/04/early-amazon-shopping-cart.html

26. questions
@jezhumble | jez@chef.io
http://chef.io/
http://continuousdelivery.com/
© 2015 Chef, Inc.
ORDER THE LEAN ENTERPRISE!
http://bit.ly/lean-enterprise-ebook
http://bit.ly/lean-enterprise-paper

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