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Tobias Schmidt
@tpschmidt.com

ElastiCache served 1.5 quadrillion requests in a single day during Prime Day. I had to look up what comes after trillion 😎 AWS publishes these numbers after every Prime Day and they read like a physics paper. The last full set they put out: • DynamoDB peaked at 151 million requests per second

Tobias Schmidt
@tpschmidt.com

• SQS peaked at 166 million messages per second • Lambda ran 1.7 trillion invocations a day • EBS did 20.3 trillion I/O operations at peak • Kinesis Data Streams peaked at 807 million records per second • CloudFront served 3 trillion HTTP requests across the week

Tobias Schmidt
@tpschmidt.com

• Aurora processed 500 billion transactions • SageMaker handled 626 billion inference requests • ECS and Fargate launched 107.1 million tasks a day on average • GuardDuty chewed through 8.9 trillion log events per hour • CloudTrail processed 2.5 trillion events

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Tobias Schmidt
@tpschmidt.com

• Graviton carried more than 40% of the EC2 compute Amazon.com used The part I keep coming back to: it's the same DynamoDB you get with a free tier account. Same API, same endpoints. The numbers are just bigger on their side.

Tobias Schmidt
@tpschmidt.com

We call this boring infrastructure. It's one of the biggest engineering achievements of our time and it runs a shopping sale aws.amazon.com/blogs/aws/a...

aws.amazon.comAWS services scale to new heights for Prime Day 2025: key metrics and milestones | Amazon Web ServicesAmazon Prime Day 2025 achieved record-breaking sales with enhanced AI shopping features, while AWS infrastructure handled unprecedented volumes of data—including 1.7 trillion Lambda invocations per day, DynamoDB peaking at 151 million requests per second, and a 77% increase in Fargate container tasks—showcasing the massive scalability required to power the four-day shopping event.