Re: Why does AWS instance always lost around 500MB memory

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On 1 August 2016 at 07:30, Dũng Trần-Dương <chris.duong83@xxxxxxxxx> wrote:
> 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".
>

A rough guess would be that the system has reserved some memory for
crashkernel but that is a guess. I would look at /proc/commandline to
see what the kernel is starting up with.


-- 
Stephen J Smoogen.
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