Why Is My App SLOw? Defining Reliability in Platform Engineering • Jez Humble • YOW! 2023
This presentation was recorded at YOW! Australia 2023. #GOTOcon #YOW
Jez Humble - SRE at Google Cloud & Lecturer at UC Berkeley @JezHumble
RESOURCES
ABSTRACT
Platform engineering is all fun and games until platform customers start complaining about their apps running slowly. Is it the app code or the platform?
This talk looks at how Google’s Serverless SRE team detects platform-level latency regressions before users, measures the impact of regressions, and tracks performance over time. We’ll discuss the limitations of SLOs in this context and how to take a statistical approach that gives a customer-centric picture of the performance of our platform instead. [...]
TIMECODES
00:00 Intro
03:27 Serverless platform is amazing
07:52 “My app is slow“
09:56 The platform is slow
12:46 Total (end-to-end) latency distribution
14:26 Request delivery latency
16:12 Goal
18:47 Reliability in practice
24:26 Applying to the model
26:09 Stationarity
27:20 2-Sigma Technique
33:32 Mechanics
34:50 Overload score
37:25 Impact analysis
38:36 FAQ
40:45 Backtesting
42:07 Limitations
44:04 Other applications
44:51 Conclusions
46:47 Outro
Download slides and read the full abstract here:
RECOMMENDED BOOKS
Nicole Forsgren, Jez Humble & Gene Kim • Accelerate •
Kim, Humble, Debois, Willis & Forsgren • The DevOps Handbook •
Jez Humble & David Farley • Continuous Delivery •
Jez Humble, Joanne Molesky & Barry O’Reilly • Lean Enterprise •
Beyer, Murphy, Rensin, Kawahara & Thorne • The Site Reliability Workbook •
Petoff, Murphy, Beyer & Jones • Site Reliability Engineering •
Adkins, Beyer, Blankinship, Lewandowski, Oprea & Stubblefield • Building Secure and Reliable Systems •
#SLO #SRE #ChaosEngineering #Serverless #PlatformEngineering #2Sigma #GoogleCloud #Observability #JezHumble #DevOps #Accelerate #YOWcon
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