Le 29 avril 2016 00:47:40 GMT+02:00, Alexandre DERUMIER <[email protected]> a écrit : >Can you try with previous kernel 4.2 ? (and keep proxmox 4.2 ) > >I would like to known if it's a regression in qemu or kernel. >
I did that, running qemu 2.5 (proxmox 4.2) on kernel 4.2, and CPU usage is as expected (~1 GHz for 1 Gbps). Reboot on kernel 4.4 and it goes 100% of a core (on a 3.3 GHz CPU). > >also, you can try to install > >#apt-get install linux-tools-4.4 > >and do a > >#perf top > > >you should see which system call use a lot of cpu Will do. Thanks Gilles > > > > > >----- Mail original ----- >De: "Gilou" <[email protected]> >À: "proxmoxve" <[email protected]> >Envoyé: Jeudi 28 Avril 2016 19:31:19 >Objet: Re: [PVE-User] Regression on virtio-net ? (Was: Re: Proxmox VE >4.2 released!) > >Le 28/04/2016 19:18, Gilou a écrit : >> 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. > >Looked into it, it's really 100% of a core, in the following setups: >- single CPU on the VM >- local or remote traffic (local goes up to 24 Gbps, remote is 1 Gbps) >- no matter what distro (haven't tested Windows) > >Has anyone noticed something like this or is this something specific? > >Regards, > > >> >> 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. >>> >> >> _______________________________________________ >> pve-user mailing list >> [email protected] >> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> > >_______________________________________________ >pve-user mailing list >[email protected] >http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >_______________________________________________ >pve-user mailing list >[email protected] >http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
