Re: [CentOS-virt] poor performance with dom0 on centos7

2015-09-17 Thread Pasi Kärkkäinen
On Wed, Sep 16, 2015 at 09:46:52PM +0200, Christoph wrote: > Hi > Hi, > Im now pretty sure the problem is the DomU with NFS Server. > > If I write on a NFS share from other Host (bare metal or other vm) > then I see on my NFS server nearly the whole time 100% io at > [jbd2/dm-5-8] process... >

Re: [CentOS-virt] poor performance with dom0 on centos7

2015-09-17 Thread Alvin Starr
run mount -v on your old system and on the new system. Look for differences in the NFS mounts. On 09/17/2015 05:06 AM, Christoph wrote: Am 2015-09-17 09:29, schrieb Pasi Kärkkäinen: Are you using nfs over UDP or TCP ? TCP, but Network cant be the bottleneck, have tested it with iperf

Re: [CentOS-virt] poor performance with dom0 on centos7

2015-09-17 Thread Keith Roberts
On 2 Sep 2015, at 09:22, Pasi Kärkkäinen wrote: > On Tue, Sep 01, 2015 at 06:47:18AM +0200, Christoph wrote: >> Hi All >> > > Hello, > >> it is possible to tune dom0/domU for better IO/network performance? >> Since I have changed to Cenots7 dom0, I have a really poor IO >>

Re: [CentOS-virt] poor performance with dom0 on centos7

2015-09-17 Thread Christoph
Am 2015-09-17 09:29, schrieb Pasi Kärkkäinen: Are you using nfs over UDP or TCP ? TCP, but Network cant be the bottleneck, have tested it with iperf between bare metal/domU's and the nfs domU and it was perfectly fast... I don't think. If you used NFS over UDP, try running it over

Re: [CentOS-virt] Official openvswitch package for CentOS7

2015-09-17 Thread George Dunlap
On Thu, Sep 17, 2015 at 3:19 PM, C. L. Martinez wrote: > Hi all, > > Exists an official openvswitch package for CentoS7?? If I am not wrong, this: > > http://mirror.centos.org/centos/7/cloud/x86_64/openstack-kilo/openstack-neutron-openvswitch-2015.1.0-1.el7.noarch.rpm > >

Re: [CentOS-virt] Official openvswitch package for CentOS7

2015-09-17 Thread C. L. Martinez
On Thu, Sep 17, 2015 at 6:06 PM, George Dunlap wrote: > On Thu, Sep 17, 2015 at 3:19 PM, C. L. Martinez wrote: >> Hi all, >> >> Exists an official openvswitch package for CentoS7?? If I am not wrong, >> this: >> >>

[CentOS-virt] Official openvswitch package for CentOS7

2015-09-17 Thread C. L. Martinez
Hi all, Exists an official openvswitch package for CentoS7?? If I am not wrong, this: http://mirror.centos.org/centos/7/cloud/x86_64/openstack-kilo/openstack-neutron-openvswitch-2015.1.0-1.el7.noarch.rpm it can be used with openstack only. Do I need to recompile from source like is is