Amazon EC2 上的 Ubuntu 的效能提昇

UbuntuAWS 合作,對 AWS 上 EC2 的 kernel 最佳化:「Ubuntu on AWS gets serious performance boost with AWS-tuned kernel」。

透過各界面拉出來的 Ubuntu 16.04 都將會是對 kernel 最佳化過的版本了:

As of March 29th, Ubuntu Cloud Images for Amazon have been enabled with the AWS-tuned Ubuntu kernel by default. The AWS-tuned Ubuntu kernel will receive the same level of support and security maintenance as all supported Ubuntu kernels for the duration of the Ubuntu 16.04 LTS.

可以看到大量的改善:

  • Up to 30% faster kernel boot speeds, on a 15% smaller kernel package
  • Full support for Elastic Network Adapter (ENA), including the latest driver version 1.1.2, supporting up to 20 Gbps network speeds for ENA instance types (currently I3, P2, R4, X1, and m4.16xlarge)
  • Improved i3 instance class support with NVMe storage disks under high IO load
  • Increased I/O performance for i3 instances
  • Improved instance initialization with NVMe backed storage disks
  • Disabled CONFIG_NO_HZ_FULL to eliminate deadlocks on some instance types
  • Resolved CPU throttling with AWS t2.micro instances

所以先前打包好的 AMI 都要再重打一次了... @_@

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