Tag: cold-start

I thought minimizing Lambda function code was a best practice for Lambda optimization - it's even recommended by AWS in a not-so-old blog post. Turns out, I was wrong.

There are two reasons to optimize AWS Lambda functions performance. First is money – you pay for the Lambda execution duration. The quicker you do the job, the less you pay. The second is latency – the quicker you do the job, the shorter your client waits for the result. It's a known fact that the decrease of latency improves sales, user engagement, and client satisfaction – so we could argue it's also the money, in the end.