[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] any known virtio-net regressions in Qemu 2.7?
|
From: |
Stefan Hajnoczi |
|
Subject: |
Re: [Qemu-devel] any known virtio-net regressions in Qemu 2.7? |
|
Date: |
Mon, 19 Dec 2016 11:03:46 +0000 |
|
User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Fri, Dec 16, 2016 at 10:00:36PM +0100, Stefan Priebe - Profihost AG wrote:
>
> Am 15.12.2016 um 07:46 schrieb Alexandre DERUMIER:
> > does rollbacking the kernel to previous version fix the problem ?
>
> The culprit is the used tuned agent from Redhat
> (https://github.com/redhat-performance/tuned). The used profile
> virtual-host results in these problems. Stopping tuned or using another
> profile like throughput-performance everything is fine again.
Interesting discovery. Have you filed a bug report about it?
> after upgrading a cluster OS, Qemu, ... i'm experiencing slow and
> volatile network speeds inside my VMs.
>
> Currently I've no idea what causes this but it's related to the host
> upgrades. Before i was running Qemu 2.6.2.
>
> I'm using virtio for the network cards.
Stefan
signature.asc
Description: PGP signature