Queuing Theory

Kind: model

Layer: Performance Core

Record: architecture:queuing-theory

Severity: contextual

Scope: performance, capacity, system

Canonical: Ontology

A conceptual representation of a system as queues with arrival and service rates, used to predict waiting time and size capacity.

Listed in Architecture principles, after Read Replica and before Streaming Architecture.

Requires

• Arrival and Service Rates

Reinforces

• Capacity Planning
• Latency

Enables

• Wait-Time Prediction
• Utilization-Based Sizing

Conflicts with

• Guess-Based Capacity

In tension with

• Model Assumptions

Tensions

• Queuing Theory / Model Assumptions

Contracts

• Queuing Theory

Violated by

• Guess-Based Capacity

Severity

• contextual

Category

• Scalability / Performance / Optimization

Linked from

• Scalability / Performance / Optimization
• Core Vocabulary
• Scalability / Performance / Optimization
• Architecture
• Severity levels
• The resolutions