[abhashanand1501]

One of the easiest hack to reduce your AWS bills is to migrate from x86 to arm64 CPU. Performance difference is negligible, and cost can be upto 50% lower for arm machines. This is for both RDS and general compute (EC2, ECS). Would recommend to all.

[torginus]

I'd say the best price/performance hack on AWS if you don't need web scale is just put your stuff on a tiny EC2 instance, like a t3.micro - it'll be likely faster and more flexible than lambda with much more predictable performance.

You can scale up by changing out to a bigger instance - it's surprising how far you can get with this strategy.

[ghthor]

Lambda in my eyes is super useful for isolating a security context, such that you can give elevated privileges to a less protected place via permission to execute the lambda; isolating something dangerous or secret from the less secure place

[watermelon0]

How is the performance difference negligible? In my experience, for the same generation of hardware, ARM64 performance is better than the AMD64 one.

AFAIK ARM64 is around 20% cheaper, not sure where you got the 50%.

[electroly]

I'm curious if you have any posted benchmarks about it. In my own experience at work, m8a demolishes m8g core-for-core. The ARM64 core is much slower. I wonder if you're comparing vCPU-for-vCPU against Intel families that use SMT: that's one ARM64 core against one Intel HyperThread. Make sure you're using AMD.

e.g. https://www.phoronix.com/review/aws-m8a-m8g-m8i-benchmarks -- m8a won virtually all of these comparisons by a wide margin. Raw performance isn't really Graviton's selling point; price-performance is.

[abhashanand1501]

In different regions the price difference is different. In us-east there is a 20% difference, in ap-south it is 50%. You can check for fargate ecs pricing for example.