Re: Poor disk (virtio) Performance Inside KVM virt-machine vs host machine

От: Alan Hodgson
Тема: Re: Poor disk (virtio) Performance Inside KVM virt-machine vs host machine
Дата: ,
Msg-id: 1946315.2Ik0VxksvJ@skynet.simkin.ca
(см: обсуждение, исходный текст)
Ответ на: Re: Poor disk (virtio) Performance Inside KVM virt-machine vs host machine  (Michael Nolan)
Список: pgsql-performance


On Tuesday, April 26, 2016 11:21:15 AM Michael Nolan wrote:
> On Tue, Apr 26, 2016 at 10:03 AM, Artem Tomyuk <> wrote:
> > Hi All.
> >
> > I've noticed that there is a huge (more than ~3x slower) performance
> > difference between KVM guest and host machine.
>
> Is this unique to KVM, or do similar things happen with other virtualizers?
> --
> Mike Nolan

CentOS 6.5 is pretty old. KVM/qemu is definitely faster in newer versions.

It will always be slower than native though. Any virtualization will be slower
than native.




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Сообщение: testing - please ignore