I see a lot of notes about EFS's performance in the comments. I figured it's at least worth noting, for anyone considering using ECS with EFS, that just last week EFS had its read throughput on its general purpose tier increased by 400%.<p>That probably won't solve all EFS performance issues, but it's a pretty big boost and a nice announcement to come alongside ECS support.<p><a href="https://aws.amazon.com/about-aws/whats-new/2020/04/amazon-elastic-file-system-announces-increase-in-read-operations-for-general-purpose-file-systems/" rel="nofollow">https://aws.amazon.com/about-aws/whats-new/2020/04/amazon-el...</a>