# Scalability and Performance guide set Capacity models, bottleneck analysis, and performance planning across applications and platforms. ## Start with a deterministic tool, then go deeper with the guide set. ### Tools - [**Kubernetes Capacity Calculator**](/content/en/free-tools/kubernetes-capacity-calculator/index.html) - Plan worker capacity for Kubernetes workloads and turn pod requirements into node counts and utilization targets with clear assumptions. - [**EKS Node Sizing Calculator**](/content/en/free-tools/eks-node-sizing-calculator/index.html) - Estimate node group counts, pod density, and instance tradeoffs for EKS clusters with managed add-ons, multi-AZ layouts, and headroom. - [**Database Capacity Planner**](/content/en/free-tools/database-capacity-planner/index.html) - Estimate table growth, index amplification, backup retention, and IOPS needs before a production database becomes a fire drill. ## Use Cases ### 10 Use Case Pages - [**How teams apply capacity guardrails in Scalability and Performance**](/content/en/guides/scalability-performance/capacity-guardrails-use-case/index.html) - [**How teams apply multi-region scale in Scalability and Performance**](/content/en/guides/scalability-performance/multi-region-scale-use-case/index.html) - [**How teams apply edge patterns in Scalability and Performance**](/content/en/guides/scalability-performance/edge-patterns-use-case/index.html) - [**How teams apply performance budgets in Scalability and Performance**](/content/en/guides/scalability-performance/performance-budgets-use-case/index.html) - [**How teams apply load testing in Scalability and Performance**](/content/en/guides/scalability-performance/load-testing-use-case/index.html) - [**How teams apply async scaling in Scalability and Performance**](/content/en/guides/scalability-performance/async-scaling-use-case/index.html) - [**How teams apply database bottlenecks in Scalability and Performance**](/content/en/guides/scalability-performance/database-bottlenecks-use-case/index.html) - [**How teams apply cache design in Scalability and Performance**](/content/en/guides/scalability-performance/cache-design-use-case/index.html) - [**How teams apply queuing pressure in Scalability and Performance**](/content/en/guides/scalability-performance/queuing-pressure-use-case/index.html) - [**How teams apply traffic growth in Scalability and Performance**](/content/en/guides/scalability-performance/traffic-growth-use-case/index.html) ## Templates ### 10 Template Pages - [**Capacity guardrails checklist for Scalability and Performance**](/content/en/guides/scalability-performance/capacity-guardrails-template/index.html) - [**Multi-region scale checklist for Scalability and Performance**](/content/en/guides/scalability-performance/multi-region-scale-template/index.html) - [**Edge patterns checklist for Scalability and Performance**](/content/en/guides/scalability-performance/edge-patterns-template/index.html) - [**Performance budgets checklist for Scalability and Performance**](/content/en/guides/scalability-performance/performance-budgets-template/index.html) - [**Load testing checklist for Scalability and Performance**](/content/en/guides/scalability-performance/load-testing-template/index.html) - [**Async scaling checklist for Scalability and Performance**](/content/en/guides/scalability-performance/async-scaling-template/index.html) - [**Database bottlenecks checklist for Scalability and Performance**](/content/en/guides/scalability-performance/database-bottlenecks-template/index.html) - [**Cache design checklist for Scalability and Performance**](/content/en/guides/scalability-performance/cache-design-template/index.html) - [**Queuing pressure checklist for Scalability and Performance**](/content/en/guides/scalability-performance/queuing-pressure-template/index.html) - [**Traffic growth checklist for Scalability and Performance**](/content/en/guides/scalability-performance/traffic-growth-template/index.html) ## Tradeoffs ### 10 Tradeoff Pages - [**Capacity guardrails tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/capacity-guardrails-tradeoff/index.html) - [**Multi-region scale tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/multi-region-scale-tradeoff/index.html) - [**Edge patterns tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/edge-patterns-tradeoff/index.html) - [**Performance budgets tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/performance-budgets-tradeoff/index.html) - [**Load testing tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/load-testing-tradeoff/index.html) - [**Async scaling tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/async-scaling-tradeoff/index.html) - [**Database bottlenecks tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/database-bottlenecks-tradeoff/index.html) - [**Cache design tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/cache-design-tradeoff/index.html) - [**Queuing pressure tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/queuing-pressure-tradeoff/index.html) - [**Traffic growth tradeoffs in Scalability and Performance**](/content/en/guides/scalability-performance/traffic-growth-tradeoff/index.html) ## Best Practices ### 10 Best Practice Pages - [**Scalability and Performance best practices for capacity guardrails**](/content/en/guides/scalability-performance/capacity-guardrails-best-practice/index.html) - [**Scalability and Performance best practices for multi-region scale**](/content/en/guides/scalability-performance/multi-region-scale-best-practice/index.html) - [**Scalability and Performance best practices for edge patterns**](/content/en/guides/scalability-performance/edge-patterns-best-practice/index.html) - [**Scalability and Performance best practices for performance budgets**](/content/en/guides/scalability-performance/performance-budgets-best-practice/index.html) - [**Scalability and Performance best practices for load testing**](/content/en/guides/scalability-performance/load-testing-best-practice/index.html) - [**Scalability and Performance best practices for async scaling**](/content/en/guides/scalability-performance/async-scaling-best-practice/index.html) - [**Scalability and Performance best practices for database bottlenecks**](/content/en/guides/scalability-performance/database-bottlenecks-best-practice/index.html) - [**Scalability and Performance best practices for cache design**](/content/en/guides/scalability-performance/cache-design-best-practice/index.html) - [**Scalability and Performance best practices for queuing pressure**](/content/en/guides/scalability-performance/queuing-pressure-best-practice/index.html) - [**Scalability and Performance best practices for traffic growth**](/content/en/guides/scalability-performance/traffic-growth-best-practice/index.html) ## Explainers ### 10 Explainer Pages - [**What capacity guardrails means in Scalability and Performance**](/content/en/guides/scalability-performance/capacity-guardrails-explainer/index.html) - [**What multi-region scale means in Scalability and Performance**](/content/en/guides/scalability-performance/multi-region-scale-explainer/index.html) - [**What edge patterns means in Scalability and Performance**](/content/en/guides/scalability-performance/edge-patterns-explainer/index.html) - [**What performance budgets means in Scalability and Performance**](/content/en/guides/scalability-performance/performance-budgets-explainer/index.html) - [**What load testing means in Scalability and Performance**](/content/en/guides/scalability-performance/load-testing-explainer/index.html) - [**What async scaling means in Scalability and Performance**](/content/en/guides/scalability-performance/async-scaling-explainer/index.html) - [**What database bottlenecks means in Scalability and Performance**](/content/en/guides/scalability-performance/database-bottlenecks-explainer/index.html) - [**What cache design means in Scalability and Performance**](/content/en/guides/scalability-performance/cache-design-explainer/index.html) - [**What queuing pressure means in Scalability and Performance**](/content/en/guides/scalability-performance/queuing-pressure-explainer/index.html) - [**What traffic growth means in Scalability and Performance**](/content/en/guides/scalability-performance/traffic-growth-explainer/index.html)