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How to use SLOs to understand user experience and
fi
nd out how to make them happy?
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Background
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What happened ?
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Normal Crash
Biz
Dev Pm
Service ?
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Normal
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How To Measure Quality of Service ?
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Normal
ｘｃ
Biz
Dev Pm
Background
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Observability Platform
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Observability platform collects Metrics, Log, Tracing data.
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Service Level Objectives
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Since Google
fi
rst introduced Service Level Indicators
(SLIs) and Service Level Objectives (SLOs) as part of
its Site Reliability Engineering (SRE) practice
Observational tools such as Datadog, Honeycomb
have long since incorporated SLO monitoring into their
toolchains.
OpenSLO is A declarative, neutral speci
fi
cation
language emerging based on the YAML format used by
Kubernetes and allowing SLIs and SLOs to be de
fi
ned
as code standard.
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SLA
SLO
SLI
Promise
Objectives
Measurement
The agreement between
client & user
The objective a service
Provider must achieve to
Meet the agreement
The real number of per
Performance. How did the
Service provider do this job
Service Level Agreements
Service Level Objectives
Service Level Indicators
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SLA / SLO / SLI
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User Experience
？
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SLA / SLO / SLI
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4 ⽉
5 ⽉
6 ⽉
7 ⽉
0 25 50 75 100
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Now we have SLOs, but biz still not happy?
SLO 1
SLO 2
SLO 3
….
SLO 100
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CUJ
10
Biz
Live
…
…
…
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4 steps to identify and implement effective SLOs
Understand internal
business goals, and
external
stakeholders
Identify and
prioritize critical
services that affect
SLAs
Identify key metrics
to use as service-
level indicators
(SLIs)
Identify key SLOs
SLA SLI SLO
CUJ
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Hold a SLOs workshop
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Define SLOs document
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SLOs Spec Yaml
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CRDs
SLOs generator
Prometheus
Rule
Alert Rule
SLI Rule
CRDs
CUJ & SLOs
Spec
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K8s
Grafana
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SLOs Dashboard
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SLOs Timeline
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Q1 Q2 Q3 Q4
Project A (1/1) (1/1) (1/1) (1/1)
Project B (1/1) (1/1) (1/1) (1/1)
Project C (1/1) (1/1) (1/1) (1/1)
Project D (5/5) (7/10) (9/10) (10/10)
SLOs Report
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Continuously improve your SLOs
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SLO Dashboard Weekly meeting Jira ticket system
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Takeaway
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SLA
SLO
SLI
Promise
Objectives
Meeasurement
Service Level Agreements
Service Level Objectives
Service Level Indicators
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Build your observation system
Discuss goals with your team
Keep your promise
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Thank you
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