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Re: [Qemu-devel] Swap disks virtualization

From: Christopher Pereira
Subject: Re: [Qemu-devel] Swap disks virtualization
Date: Mon, 13 Mar 2017 11:51:02 -0300
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0

On 13-Mar-17 08:21, Kevin Wolf wrote:
I think the state of the art is to give the VMs enough memory rather
Thanks Kevin. This was the answer I expected, so here follows my second question:

By increasing virtual RAM, I'm afraid that the guest OS may detect and use more memory, causing the host to pay the price of overcommited memory being swapped on the host. If the guest OS (let's say Linux) detects less available memory, isn't there a chance it will try to use less memory? My guess is that the OS's should distinguish between physical (fast) and swap memory (slow) for better memory management.
Any thoughts?

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