Performance Efficiency (Pillar: Performance)
The Performance Efficiency pillar of WAF++ defines requirements, principles, and measurable controls to operate cloud workloads with demonstrably good and stable performance.
Performance is not accidental. It is an architectural outcome that must be measured, managed, and continuously improved – not reactively optimized after the first incident.
What does Performance Efficiency mean in WAF++?
Performance Efficiency means that an organization has demonstrable control over the following dimensions:
| Dimension | What is controlled? | WAF-PERF Control |
|---|---|---|
Compute Sizing |
Are resource types and sizes chosen based on measured utilization data? |
WAF-PERF-010 |
Auto-Scaling |
Are stateless workloads equipped with tested auto-scaling configurations? |
WAF-PERF-020 |
Caching |
Is there a documented caching strategy with measured hit rates? |
WAF-PERF-030 |
Database Performance |
Are slow query logs active? Is there an index strategy for high-frequency queries? |
WAF-PERF-040 |
SLOs & Monitoring |
Are performance SLOs defined and instrumented? Is SLO burn rate alerting in place? |
WAF-PERF-050 |
Load Testing |
Are load tests executed as a deployment gate? Are regressions automatically detected? |
WAF-PERF-060 |
Network Performance |
Is the network topology latency-optimized? Are CDN and VPC endpoints used? |
WAF-PERF-070 |
Serverless & Managed Services |
Are serverless architectures used and optimized for variable load? |
WAF-PERF-080 |
Storage I/O |
Are storage volumes configured with the correct type and optimized IOPS/throughput? |
WAF-PERF-090 |
Performance Debt |
Are known performance limitations documented in the register and reviewed? |
WAF-PERF-100 |
Why is Performance Efficiency a dedicated pillar?
Performance is cross-cutting: it affects compute, databases, network, storage, and caching. Nevertheless, Performance Efficiency is an independent discipline because:
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It has its own measurability dimension: SLOs, SLIs, latency percentiles, error budgets
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It requires specific technical controls not covered by any other pillar
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It addresses performance debt as a structural risk – analogous to technical and cost-related debt
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Performance must be embedded as a quality attribute in architecture processes and ADRs
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Brownfield and greenfield scenarios have fundamentally different starting situations
| Performance Efficiency without measurement is guesswork. SLOs without load test validation are wishful thinking. Auto-scaling without testing is an untested safety net. |
Distinction from other pillars
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Reliability addresses: fault tolerance, backup, recovery, chaos engineering.
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Operations addresses: monitoring, incident response, change management.
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Cost Optimization addresses: cost management, rightsizing from a cost perspective, FinOps.
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Architecture addresses: design principles, patterns, structural decisions.
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Performance Efficiency addresses: latency, throughput, capacity planning, SLOs, load testing requirements.
Performance Efficiency assumes that resources are monitored, metrics are collected, and workloads are understood, and extends this with optimization cycles, SLO management, and load testing obligations.
Controls Overview
The Performance pillar is operationalized through 10 measurable controls (WAF-PERF-010 to WAF-PERF-100).
| Control ID | Title | Severity | Automatable |
|---|---|---|---|
Compute Instance Type & Sizing Validated |
High |
High |
|
Auto-Scaling Configured & Tested |
High |
High |
|
Caching Strategy Defined & Implemented |
Medium |
Medium |
|
Database Performance Baseline & Index Strategy |
High |
High |
|
Performance Monitoring & SLO Definition |
High |
Medium–High |
|
Load & Stress Testing in CI/CD Pipeline |
Medium |
Medium |
|
Network Latency & Topology Optimization |
Medium |
Medium |
|
Serverless & Managed Services for Variable Load |
Low |
Medium |
|
Storage I/O Performance & Throughput Optimization |
Medium |
High |
|
Performance Debt Register & Quarterly Review |
Medium |
Low |
Quick Start
New to the Performance pillar? Recommended reading order:
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Definition – What is Performance Efficiency as a discipline?
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Scope – Brownfield vs. greenfield, what is in scope?
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Performance Principles – 7 core principles including performance debt
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Controls – The 10 measurable controls
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Maturity Model – Where does my organization stand?
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Best Practices – How to implement it in practice?