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Re: [Qemu-discuss] /usr/bin/qemu-system-x86_64 Vs. /usr/bin/kvm emulator

From: Bram Klein Gunnewiek
Subject: Re: [Qemu-discuss] /usr/bin/qemu-system-x86_64 Vs. /usr/bin/kvm emulator
Date: Mon, 11 Jul 2016 07:56:17 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0

/usr/bin/kvm is probably just a script executing /usr/bin/qemu-system-x86_64 with kvm enabled:

exec qemu-system-x86_64 -enable-kvm "$@"

The /usr/bin/kvm 'executable' is from the time qemu-kvm was a fork of qemu, see http://wiki.qemu.org/KVM . All KVM features are merged in the QEMU project.

Met vriendelijke groet / Kind regards,
Bram Klein Gunnewiek | Shock Media B.V.

Tel: +31 (0)546 - 714360
Fax: +31 (0)546 - 714361
Web: https://www.shockmedia.nl/

On 07/10/2016 05:39 PM, Yan Fridland wrote:
Hello All,

Can anyone please explain what is the difference between working with 
/usr/bin/qemu-system-x86_64 and /usr/bin/kvm emulators?

I have some doubts regarding what is the best emulator type I should supply in the virsh 
XML (under <emulator> </emulator>) to get maximum performance of my VM.

Thank you,

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