We care a lot about performance at Ninefold and spend a lot of time thinking about ways to measure and improve Rails app performance. Here's one of the ways we go about doing that using flood.io, jmeter, the ruby-jmeter gem, and Apdex.

1. HOW TO TEST FOR
USER HAPPINESS
:)
Brought to you by Ninefold.com

2. PROBLEM
YOU,
THE DEVELOPER,
WORK HARD BUILDING
GREAT USER EXPERIENCE.
IS YOUR INFRASTRUCTURE
WORKING FOR YOU
OR AGAINST YOU?

3. PROBLEM:
(stolen from http://blog.kissmetrics.com/loading-time)

6. WHY DOES PERFORMANCE MATTER?

8. WHAT DEFINES HAPPINESS?
FAST
AND
CONSISTENT

9. HOW DO YOU MEASURE HAPPINESS?
APDEX

10. OUR GOALS
EASY TO WRITE TESTS
FOR DIFFERENT APPS
SCALABLE TESTS
SHARE OUR TEST
TOOLS
BE TRANPARENT

11. JMETER
JAVA
HARD TO USE
RELIES ON GUI OR .XML
FILES
DOESN'T SCALE EASILY

14. RUBY-JMETER GEM
HTTPS://GITHUB.COM/FLOOD-IO/RUBY-JMETER
GOAL #1
(EASY TO WRITE TESTS)

16. FLOOD.IO
LOAD TESTING AS A SERVICE
GOAL #2
(SCALABLE TESTING)

17. OUR REPOS
https://github.com/ninefold/nf_performance_spree
https://github.com/ninefold/nf_performance_tests
GOAL #3
(SHARING OUR RESULTS)

18. WHAT WE BUILT:
A TOOLBOX FOR TESTING WITH:

19. THE RUBY-JMETER GEM
A CLI FOR INTERACTING WITH FLOOD.IO
PRE-WRITTEN TESTS FOR SPREE AND
DISCOURSE
EXAMPLES FOR YOUR APP
ANY INFRASTRUCTURE
GOAL #4
(TRANSPARENCY)

20. MORE INFO ON SETUP FOR PRESENTATION

21. TEST FOR HAPPINESS
MAKE SURE YOUR
INFRASTRUCTURE IS
WORKING WITH YOU
NOT AGAINST YOU!
:)

22. THANK YOU
ryan@ninefold.com
@I_am_Ryo
github: IAMRYO