Performance Efficiency Best Practices - AWS Well-Architected Framework Study Guide
Published: 2022-03-02 16:45:51

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[**Selection**](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-sel.html)
- Use a data-driven approach to select architecture
- Data obtained through benchmarking or load testing will be required to optimize architecture
- Ask:
     - How do you select the best performing architecture?
- Four main resource types to consider:
     - [Compute](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-compute.html)
          - Be aware of your requirements for workload performance and cost requirements
          - Compute is available in three forms: instances, containers, and functions
          - Ask: How do you select your compute solution?
     - [Storage](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-storage.html)
          - Storage is available in three forms: object, block, and file
          - Ask: How do you select your storage solution?
     - [Database](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-db.html)
          - Choose from multiple purpose-built database engines including relational, key-value, document, in-memory, graph, time series, and ledger databases
          - Don’t need to worry about database management tasks
          - Consider the access patterns of your workload
          - Consider if other non-database solutions could solve the problem more efficiently
          - Ask: How do you select your database solution?
     - [Network](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-network.html)
          - Determine the workload requirements for bandwidth, latency, jitter, and throughput
          - Consider location when deploying your network
          - Use networking metrics to make changes to networking configuration as the workload evolves
          - Take advantage of Regions, placement groups, and edge services
          - Ask: How do you configure your networking solution?

[**Review**](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-review.html)
- Ensure that workload components are using the latest technologies and approaches to continually improve performance
- Continually evaluate and consider changes to your workload components
- Take advantage of the continual innovation at AWS (new Regions, edge locations, services, and features)
- Ask:
     - How do you evolve your workload to take advantage of new releases?

[**Monitoring**](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-monitoring.html)
- Monitor workload performance to remediate any issues before they impact customers
- Use monitoring metrics to raise alarms when thresholds are breached
- Plan for game days to test your alarm solution and ensure that it correctly recognizes issues
- Ask:
     - How do you monitor your resources to ensure they are performing?

[**Tradeoffs**](https://docs.aws.amazon.com/wellarchitected/latest/framework/perf-tradeoffs.html)
- Think about tradeoffs to ensure an optimal approach
- Collect and evaluate metrics to determine the impact of changes
- Measure the impacts to the system and to the end-user
- Ask:
     - How do you use tradeoffs to improve performance?

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