Hello,
Here is the situation :
4 Proxmox nodes in a cluster.
Each node is the same :
and,
So, I have big network performance issues.
Look at theses tests.
iperf between proxmox-1 and proxmox-2 => result is OK.
iperf between vm-1 (on proxmox-1) and vm-2 (on proxmox-1) => result is OK
iperf between vm-1 (on proxmox-1) and vm-3 (on proxmox-2) => result is KO !
So, do you have any idea to explain these bad figures ?
Note that the perfs could be even worst if i put more VMs on each Proxmox.
I think that it's because of poor perfs of Linux Bridges.
Thanks for your help.
Alexis
Here is the situation :
4 Proxmox nodes in a cluster.
Each node is the same :
Code:
# pveversion -v
proxmox-ve-2.6.32: 3.1-109 (running kernel: 2.6.32-23-pve)pve-manager: 3.1-3 (running version: 3.1-3/dc0e9b0e)
pve-kernel-2.6.32-20-pve: 2.6.32-100
pve-kernel-2.6.32-23-pve: 2.6.32-109
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
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: 4.0.0-2
pve-cluster: 3.0-8
qemu-server: 3.1-8
pve-firmware: 1.0-23
libpve-common-perl: 3.0-8
libpve-access-control: 3.0-7
libpve-storage-perl: 3.0-17
pve-libspice-server1: 0.12.4-2
vncterm: 1.1-4
vzctl: 4.0-1pve4
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.4-17
ksm-control-daemon: 1.1-1
glusterfs-client: 3.4.1-1
Code:
# lscpu
root@ix6-proxmox-1:/var/lib/vz/template/iso# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 32
On-line CPU(s) list: 0-31
Thread(s) per core: 2
Core(s) per socket: 8
Socket(s): 2
NUMA node(s): 2
Vendor ID: GenuineIntel
CPU family: 6
Model: 45
Stepping: 7
CPU MHz: 1995.329
BogoMIPS: 3989.84
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 20480K
NUMA node0 CPU(s): 0-7,16-23
NUMA node1 CPU(s): 8-15,24-31
Code:
# lspci |grep Ether
03:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
03:00.1 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
06:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit SFI/SFP+ Network Connection (rev 01)
06:00.1 Ethernet controller: Intel Corporation 82599EB 10-Gigabit SFI/SFP+ Network Connection (rev 01)and,
Code:
# cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto eth2
iface eth2 inet manual
auto eth3
iface eth3 inet manual
auto bond0
iface bond0 inet manual
slaves eth2 eth3
bond_miimon 100
bond_mode 802.3ad
post-up ifconfig bond0 mtu 9000
auto vmbr0
iface vmbr0 inet static
address 192.168.0.xxx
netmask 255.255.255.0
gateway 192.168.0.254
bridge_ports bond0
bridge_stp off
bridge_fd 0
mtu 1500So, I have big network performance issues.
Look at theses tests.
- proxmox-1 and proxmox-2 are two proxmox physical hosts
- vm-1, vm-2 are tow KVM guests on proxmox-1, and vm-3 is a KVM guest on proxmox-2.
- VirtIO is used on VMs
iperf between proxmox-1 and proxmox-2 => result is OK.
Code:
root@proxmox-1:~# iperf -c proxmox-2 -i1
------------------------------------------------------------
Client connecting to ix6-proxmox-3, TCP port 5001
TCP window size: 23.8 KByte (default)
------------------------------------------------------------
[ 3] local xx.xxx.xxx.xxx port 38319 connected with xxx.xxx.xxx.xxx port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 1.02 GBytes 8.75 Gbits/sec
[ 3] 1.0- 2.0 sec 988 MBytes 8.29 Gbits/sec
[ 3] 2.0- 3.0 sec 979 MBytes 8.21 Gbits/sec
[ 3] 3.0- 4.0 sec 950 MBytes 7.96 Gbits/sec
[ 3] 4.0- 5.0 sec 976 MBytes 8.19 Gbits/sec
[ 3] 5.0- 6.0 sec 1.06 GBytes 9.07 Gbits/sec
[ 3] 6.0- 7.0 sec 1.06 GBytes 9.07 Gbits/sec
[ 3] 7.0- 8.0 sec 972 MBytes 8.16 Gbits/sec
[ 3] 8.0- 9.0 sec 950 MBytes 7.97 Gbits/sec
[ 3] 9.0-10.0 sec 996 MBytes 8.35 Gbits/sec
[ 3] 0.0-10.0 sec 9.78 GBytes 8.40 Gbits/seciperf between vm-1 (on proxmox-1) and vm-2 (on proxmox-1) => result is OK
Code:
[root@vm-1 ~]# iperf -c vm-2 -i1
------------------------------------------------------------
Client connecting to xxx.xxx.xxx.xxx TCP port 5001
TCP window size: 19.3 KByte (default)
------------------------------------------------------------
[ 3] local xxx.xxx.xxx.xxx port 38669 connected with xxx.xxx.xxx.xxx port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 1.68 GBytes 14.4 Gbits/sec
[ 3] 1.0- 2.0 sec 1.74 GBytes 15.0 Gbits/sec
[ 3] 2.0- 3.0 sec 1.70 GBytes 14.6 Gbits/sec
[ 3] 3.0- 4.0 sec 1.73 GBytes 14.8 Gbits/sec
[ 3] 4.0- 5.0 sec 1.75 GBytes 15.0 Gbits/sec
[ 3] 5.0- 6.0 sec 1.75 GBytes 15.0 Gbits/sec
[ 3] 6.0- 7.0 sec 1.75 GBytes 15.1 Gbits/sec
[ 3] 7.0- 8.0 sec 1.75 GBytes 15.0 Gbits/sec
[ 3] 8.0- 9.0 sec 1.57 GBytes 13.5 Gbits/sec
[ 3] 0.0-10.0 sec 16.8 GBytes 14.4 Gbits/seciperf between vm-1 (on proxmox-1) and vm-3 (on proxmox-2) => result is KO !
Code:
[root@vm-1 ~]# iperf -c vm-3 -i1
------------------------------------------------------------
Client connecting to xxx.xxx.xxx.xxx, TCP port 5001
TCP window size: 19.3 KByte (default)
------------------------------------------------------------
[ 3] local xxx.xxx.xxx.xxx port 47869 connected with xxx.xxx.xxx.xxx port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 330 MBytes 2.77 Gbits/sec
[ 3] 1.0- 2.0 sec 341 MBytes 2.86 Gbits/sec
[ 3] 2.0- 3.0 sec 345 MBytes 2.89 Gbits/sec
[ 3] 3.0- 4.0 sec 341 MBytes 2.86 Gbits/sec
[ 3] 4.0- 5.0 sec 348 MBytes 2.92 Gbits/sec
[ 3] 5.0- 6.0 sec 340 MBytes 2.86 Gbits/sec
[ 3] 6.0- 7.0 sec 347 MBytes 2.91 Gbits/sec
[ 3] 7.0- 8.0 sec 346 MBytes 2.90 Gbits/sec
[ 3] 8.0- 9.0 sec 343 MBytes 2.88 Gbits/sec
[ 3] 9.0-10.0 sec 283 MBytes 2.37 Gbits/sec
[ 3] 0.0-10.0 sec 3.28 GBytes 2.82 Gbits/secSo, do you have any idea to explain these bad figures ?
Note that the perfs could be even worst if i put more VMs on each Proxmox.
I think that it's because of poor perfs of Linux Bridges.
Thanks for your help.
Alexis
