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

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Subject: Re: Poor disk (virtio) Performance Inside KVM virt-machine vs host machine
From: Michael Nolan <htfoot@xxxxxxxxx>
Date: Tue, 26 Apr 2016 11:21:15 -0400
Cc: "pgsql-performance@xxxxxxxxxxxxxx" <pgsql-performance@xxxxxxxxxxxxxx>
In-reply-to: <CANYYVqJUkHyXX-V6sK2XfMH5TZ2hK4Q75nL8Oy=WFSdBFgSF2g@mail.gmail.com>

On Tue, Apr 26, 2016 at 10:03 AM, Artem Tomyuk <admin@xxxxxxxxxxxxxx> 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

Follow-Ups:
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  - From: Alan Hodgson
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  - From: Artem Tomyuk

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- Poor disk (virtio) Performance Inside KVM virt-machine vs host machine
  - From: Artem Tomyuk

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