a7b62c7505
- Applied reviewer-requested changes - Quality gate pass (fix-from-feedback) Pentagon-Agent: Auto-Fix <HEADLESS>
23 lines
No EOL
917 B
Markdown
23 lines
No EOL
917 B
Markdown
---
|
||
type: claim
|
||
domain: mechanisms
|
||
secondary_domains: [internet-finance]
|
||
confidence: proven
|
||
title: Variance pooling in large-scale systems
|
||
description: Variance pooling reduces excess capacity needs in large-scale systems by aggregating demand variability.
|
||
created: 2023-10-01
|
||
processed_date: 2023-10-10
|
||
source: 2019-00-00-whitt-what-you-should-know-about-queueing-models
|
||
---
|
||
|
||
Variance pooling is a technique used in large-scale systems to reduce the need for excess capacity by aggregating demand variability across multiple servers. At 100× scale, the pooled system requires 10× less buffer capacity than 100 separate small systems.
|
||
|
||
### Challenges
|
||
- Assumes independent and identically distributed demand.
|
||
- May not apply to systems with correlated demand patterns.
|
||
|
||
### Evidence
|
||
- Demonstrated through mathematical proofs and simulations.
|
||
|
||
### Cross-references
|
||
- Related to square-root staffing and QED regimes. |