Up until March of this year, the Ubuntu kernel was not tuned for AWS. This included not having support for Elastic Network Adapter, which limited network speeds

Up until March of this year, the Ubuntu kernel was not tuned for AWS. This included not having support for Elastic Network Adapter, which limited network speeds when compared to Amazon Linux. See here: https://insights.ubuntu.com/2017/04/05/ubuntu-on-aws-gets-serious-performance-boost-with-aws-tuned-kernel/ https://insights.ubuntu.com/2017/04/05/ubuntu-on-aws-gets-se...