July 24, 2014

Webcast with Target: API Performance Testing for Black Friday

Today’s speakers

Aaron StreyTarget@Strey203

Greg BrailApigee@gbrail

CC BY-SA 3

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Target processes tens of millions of API requests per

day

For a brief period around Black Friday we see a ~10-

fold increase in traffic

4

Generating load

5

Treat your test scripts like you treat your code

6

Predicting traffic

7

“Make everything as simple as possible, but not simpler.” -Albert Einstein

Predicting net new API consumer usage is really hard

8

Log and monitor all the things

9

Example metrics

10

Example metrics

Test APIs for anti-fragility

12

Test APIs continuously

13

Keep ownership of performance testing as close to the development team as

possible

14

Types of tests

15

Stress: determines the load you can handle and still meet your SLA

Load: 80% of stress

Soak: 80% of load for an extended period

Spike: 80% of load to 120% of load back and forth

The hard stuff

16

Key takeaway

17

Performance testing is a first-

class citizen

Questions?

Aaron StreyTarget@strey203

Greg BrailApigee@gbrail

Thank you

11 February 2014