[zbjornson]

Reluctant to say much because the benchmarks weren't formal. However...

The throughput correlated directly with how much RAM we allocated to the Lambda function (which presumably means we were sharing the VM with fewer other jobs).

512 MB RAM, 19.5 MB/s

768 MB RAM, 29.8 MB/s

1024 MB RAM, 38.4 MB/s

1536 MB RAM, 43.7 MB/s

Note that this also used the node.js AWS SDK, which is slower to download files than some other APIs.

[hrez]

Thanks. I'd guess bigger RAM uses bigger instance types as a host hence more bandwidth. If this was my goal I'd try gof3r to stream data from s3.