KVM Bridge+WorkLoad...Is setup ok?

[BiagioParuolo]

Hi,

I've setup 2 KVM VM in bridge mode ( without routing ). The config is:

x.y.z.39 Proxmox Host with eth0 and vmbr0 on eth0.

x.y.z.45 e 46 kvm Host with the same mask e gateway of proxmox host with eth bridged on vmbr0.

vmx-node01:/etc/pve# brctl show
bridge name bridge id STP enabled interfaces
vmbr0 8000.00215e479672 yes eth0
vmtab104i0
vmtab105i0

pveversion -v
pve-manager: 1.3-1 (pve-manager/1.3/4023)
qemu-server: 1.0-14
pve-kernel: 2.6.24-11
pve-kvm: 86-3
pve-firmware: 1
vncterm: 0.9-2
vzctl: 3.0.23-1pve3
vzdump: 1.1-2
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1

vmx-node01:/etc/pve# pveperf
CPU BOGOMIPS: 20003.48
REGEX/SECOND: 634889
HD SIZE: 56.84 GB (/dev/pve/root)
BUFFERED READS: 93.31 MB/sec
AVERAGE SEEK TIME: 17.82 ms
FSYNCS/SECOND: 99.32
DNS EXT: 148.67 ms
DNS INT: 14.87 ms

Hostname IP AddressRole State Uptime LoadCPU IODelay Memory Disk
vmx-node01 x.y.z.39 - active 00:562.45 28% 35% 63% 29%
Why 28% of CPU when all VM are not under workload ( in proxmox home page , I've 0%,1%,0%,4% CPU for 1,2,3,4 vm)?

Is good this config?

I've impression that network and vms are slower and Why VNC Console or RDP Desktop freeze (but vm is not blocked)?

hardware: Miditower IBM x3200M2 Intel Xeon
(4x core 2.50 GHz) o superiore
8GB 2 x 250GB SATA RAID 1
RAID 1 hardware
Thank you

 

[dietmar]

Yur setup looks good.

Why 28% of CPU when all VM are not under workload ( in proxmox home page , I've 0%,1%,0%,4% CPU for 1,2,3,4 vm)?

Please try to find out which process consumes CPU (with tools like 'ps' or 'top').

 

[dietmar]

AVERAGE SEEK TIME: 17.82 ms
FSYNCS/SECOND: 99.32

Those are really bad values - very slow. Please verify your cache settings on the RAID controller (I assume you have a batery on the RAID card (BBU)?).

 

[BiagioParuolo]

I'll ask my ISP...

Is this a causa for RDP/VNC freeze ?

 

[dietmar]

Is this a causa for RDP/VNC freeze ?

No, I guess not.

 

[BiagioParuolo]

Uhm....

I've setup Win2k8 and Linux machine with 1 CPU...

Info: Windows VM is a vzdump from old server and restore on new server and Linux KVM is a new machine ...
In front of this ProxMox server there is a firewall in bride mode, but if I download ISO from linux console of KVM machine , my speed is 8.9MB/sec...
For Win2k8 I've removed Realtek NetCard and installed E1000, now.

 

[BiagioParuolo]

I've stopped also the cluster services ( I've only one node, now ) for speed-up...Is a good thing?

ClusterSyncstoppedPVE Cluster Synchronization Daemon

ClusterTunnelstoppedPVE Cluster Tunnel Daemon

 

[dietmar]

I've stopped also the cluster services ( I've only one node, now ) for speed-up...Is a good thing?

Those services does not start if you do not have a cluster defined.

 

[BiagioParuolo]

I don't have it...Node was a master node ...
After destroyed all slave node ( changed ISP ) , I delete master node with pvca command and after ....