Hello,I
I've noticed a very bad behavior on a VM. My host is running ~10 VMs. The "problem VM" works without problems after bootup. Then ~4-5 days later, the network speed on the host and all VMs is going down from 1000 Mbps to 50-100 kbps (!). The whole system is very slow. [But not the "problem VM", this one still has full speed somehow.] Then I have to stop and start the "problem VM" and speed is very good again for all VMs and the host. This works for another 4-5 days...
The VM is running Debian 6 stable with 2 shoutcast servers. Nothing more.
I've checked the logs, but couldn't find any useful information. The only thing I noticed is that the "top" command on the host machine shows 100% for "si" (softirq) on CPU0. I compared it to another equal host which only uses ~1.7% for "si", so I think the problem is somewhere at this point.
How do I solve this problem? It's very urgent, because I don't want to reboot the VM every time and all other machines don't have enough network speed. I already tried to change the network device from e1000 to virtio, but this did not help.
I've noticed a very bad behavior on a VM. My host is running ~10 VMs. The "problem VM" works without problems after bootup. Then ~4-5 days later, the network speed on the host and all VMs is going down from 1000 Mbps to 50-100 kbps (!). The whole system is very slow. [But not the "problem VM", this one still has full speed somehow.] Then I have to stop and start the "problem VM" and speed is very good again for all VMs and the host. This works for another 4-5 days...
The VM is running Debian 6 stable with 2 shoutcast servers. Nothing more.
I've checked the logs, but couldn't find any useful information. The only thing I noticed is that the "top" command on the host machine shows 100% for "si" (softirq) on CPU0. I compared it to another equal host which only uses ~1.7% for "si", so I think the problem is somewhere at this point.
How do I solve this problem? It's very urgent, because I don't want to reboot the VM every time and all other machines don't have enough network speed. I already tried to change the network device from e1000 to virtio, but this did not help.
Code:
root@proxmox4:~# pveversion -v
pve-manager: 3.0-23 (pve-manager/3.0/957f0862)
running kernel: 2.6.32-20-pve
proxmox-ve-2.6.32: 3.0-100
pve-kernel-2.6.32-13-pve: 2.6.32-72
pve-kernel-2.6.32-14-pve: 2.6.32-74
pve-kernel-2.6.32-11-pve: 2.6.32-66
pve-kernel-2.6.32-20-pve: 2.6.32-100
pve-kernel-2.6.32-12-pve: 2.6.32-68
pve-kernel-2.6.32-19-pve: 2.6.32-96
pve-kernel-2.6.32-18-pve: 2.6.32-88
pve-kernel-2.6.32-7-pve: 2.6.32-60
lvm2: 2.02.95-pve3
clvm: 2.02.95-pve3
corosync-pve: 1.4.5-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.0-1
pve-cluster: 3.0-4
qemu-server: 3.0-20
pve-firmware: 1.0-22
libpve-common-perl: 3.0-4
libpve-access-control: 3.0-4
libpve-storage-perl: 3.0-8
vncterm: 1.1-4
vzctl: 4.0-1pve3
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.4-13
ksm-control-daemon: 1.1-1
Last edited:
