Hi, I launched an AWS instance `t2.medium` (use CentOS 7 image "ami-7abd0209", product code: https://aws.amazon.com/marketplace/pp/B00O7WM7QW), which is supposed to have 4GB Memory in total, but turn out it is only "3.5GB". ``` $ free -h total used free shared buff/cache available Mem: 3.5G 441M 1.4G 16M 1.6G 2.7G Swap: 0B 0B 0B ``` It does not happen to AWS Ubuntu 16.04. ``` $ free -h total used free shared buff/cache available Mem: 3.9G 49M 3.3G 5.5M 518M 3.7G Swap: 0B 0B 0B ``` This seems to happen to all AWS CentOS image, regardless which instance type it is. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20160801/417a1e05/attachment-0005.html>