[antonvs]

< NVMe read latency is in the 10-100µs range for 128kB blocks. S3 is about 100ms. That's 3-4 OOMs.

Aren't you comparing local in-process latency to network latency? That's multiple OOM right there.

[the8472]

No, within the same DC network latency does not add that much. After all EFS also manages 600µs average latency. It's really just S3 that's slow. I assume some large fraction of S3 is spread over HDDs, not SSDs.