Compute Optimizer analyzes your resource usage and recommends optimal configurations — right-sizing EC2 instances, EBS volumes, Lambda memory, and Auto Scaling groups — to cut cost and improve performance.
The tell
When a scenario needs data-driven right-sizing recommendations (is this instance over-provisioned? what memory should this Lambda have?), that’s Compute Optimizer. It uses machine learning on your utilization metrics. Cost Explorer analyzes spend; Compute Optimizer recommends the right resource size.
Test yourself
A team suspects many EC2 instances are over-provisioned and wants machine-learning-based right-sizing recommendations. Which service?
- AWS Cost Explorer
- AWS Compute Optimizer
- AWS Config
- Amazon CloudWatch alarms
👉 Click to reveal the answer & explanation
Correct answer: B. Compute Optimizer analyzes utilization and recommends right-sized configurations for EC2, EBS, Lambda, and ASGs. Cost Explorer (A) analyzes spend but not resource right-sizing; Config (C) tracks configuration; CloudWatch alarms (D) react to thresholds, they don’t recommend sizing.
Related topics
AWS Cost Explorer · Amazon EC2 · AWS Trusted Advisor
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