CPU usage and vzdump

[mattym]

hi,

I have several KVM VPS's running. One of them consistently eats 100% CPU and I believe this is slowing down vzdump which I use for the backups. When the backup runs it barely manages 5Mb/s on a gig LAN, it has its own dedicated NIC in the server for the backup traffic. The physical server has 6 cores and the KVM's are only allocated 1 CPU and 1 Core. I guess it will just tie up the single first core of the physical CPU which also slows down vzdump?

The NFS server is a FreeNAS box running the latest version.

From what I read you can't set the affinity for the KVM VMs?

Its driving me crazy and I'm struggling to get a reliable backup. :/

pve-manager: 1.9-26 (pve-manager/1.9/6567)
running kernel: 2.6.32-6-pve
proxmox-ve-2.6.32: 1.9-43
pve-kernel-2.6.32-4-pve: 2.6.32-33
pve-kernel-2.6.32-6-pve: 2.6.32-55+ovzfix-1
qemu-server: 1.1-32
pve-firmware: 1.0-15
libpve-storage-perl: 1.0-19
vncterm: 0.9-2
vzctl: 3.0.29-3pve1
vzdump: 1.2-16
vzprocps: 2.0.11-2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.15.0-2
ksm-control-daemon: 1.0-6

thanks

matt

 

[dietmar]

I would update to latest version (2.X) for further tests.