[PVE-User] Regression on virtio-net ? (Was: Re: Proxmox VE 4.2 released!)

[Gilou]

Le 27/04/2016 15:35, Martin Maurer a écrit :
> Hi all!
> 
> We are proud to announce the final release of our Proxmox VE 4.2 with
> the new GUI.
> 
> The Sencha Ext JS 6 framework brings a modern 'flat design' look and
> feel to the Proxmox VE GUI with a reworked icon set providing
> consistency and an improved user experience.
> 
> Watch our short introduction video - What's new in Proxmox VE 4.2
> http://www.proxmox.com/en/training/video-tutorials/item/what-s-new-in-proxmox-ve-4-2
> 
> 
> This point release is based on latest and greatest Debian Jessie and a
> 4.4.6 Linux kernel, based on Ubuntu 16.04 LTS kernel.

Hi,

I seem to have a regression, and a weird one I see neither on Proxmox
4.1 4.2.6's kernel, nor on Ubuntu 4.4.0, or

Context: Ubuntu Guest VM using Ubuntu 16.04 on a virtio_net device
(tested also on Debian 8, and CentOS7), connected on a bridge.

on 4.1 : 1 Gbps bandwidth, ~1 GHz of CPU
on 4.2 : 1 Gbps bandwidth, ~3 GHz of CPU

Tested using transfer to /dev/null & iperf, so no disk involved.

I do not have the issue on ubuntu 4.4.0 using virtualbox/virtio-net.

Haven't tested further, but this is an isssue.

Regards,
Gilles Pietri


> 
> We included as always countless small improvements and bugfixes, like
> the ability to use Let´s Encrypt certificates.
> 
> Release notes
> http://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_4.2
> 
> ISO Download
> 
> http://www.proxmox.com/en/downloads
> 
> Alternate ISO download:
> http://download.proxmox.com/iso/
> 
> Upgrading
> http://pve.proxmox.com/wiki/Downloads
> 
> Bugtracker
> https://bugzilla.proxmox.com
> 
> A big THANK-YOU to our active community for all feedback, testing, bug
> reporting and patch submissions.
>