Comment by dynotable

89M rps was the peak across all Amazon systems during 2021 Prime Day. Alexa, Amazon.com and the fulfilment centres together, not one site. But its still very impressieve. But the more importarnt number is the per partition limit, 3000 RCU and 1000 WCU. Horizontal scale is the easy part, a table only gets near it if the partition key actually spreads.