Sports Authority handles 2,000 transactions per second with Google Cloud Platform
googlecloudplatform.blogspot.com/2016/02/Sports-Authority-handles-2000-transactions-per-second-with-Google-Cloud-Platform.html
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
The requirements for a new solution included finding the customer’s location, searching the 90 million record inventory system and returning product availability in just the handful of stores nearest in location to that particular customer. On top of that, the API would need to serve at least 50 customers per second, while returning results in less than 200 milliseconds.