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xen-users
[Xen-users] Poor performance on bandwidth, Xen 4.0.1 kernel pvops 2.6.32
Hello list,
I have two differents installation Xen
Hypervisor on two identical physical server, on the same switch :
The problem is on my new server (Xen
4.0.1 with pvops kernel 2.6.32.24), I have bad performance on bandwidth
I have test with a files copy and "iperf".
Result iperf average:
Transfert
Bandwidth
XEN-A -> Windows Physical:
1005 MBytes 843 Mbits/sec
XEN-B -> Windows Physical:
522 MBytes 438 Mbits/sec
Windows Physical -> XEN-A:
477 MBytes 399 Mbits/sec
Windows Physical -> XEN-B:
175 MBytes 146 Mbits/sec
It's the same network card but on the
new installation, the module bnx2 have a new version...
Maybe i haven't activate or forget something...
If you have an idea, I listen you !!
Thanks in advance !
This is the details of two installations:
XEN-A:
- XEN 3.2.1 kernel 2.6.26-2-xen-amd64
#xm info
release
: 2.6.26-2-xen-amd64
version
: #1 SMP Sun Jun 21 08:09:04 UTC 2009
machine
: x86_64
nr_cpus
: 4
nr_nodes
: 1
cores_per_socket
: 2
threads_per_core
: 1
cpu_mhz
: 1995
hw_caps
: bfebfbff:20100800:00000000:00000140:0004e33d:00000000:00000001
total_memory
: 24570
free_memory
: 918
node_to_cpu
: node0:0-3
xen_major
: 3
xen_minor
: 2
xen_extra
: -1
xen_caps
: xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
hvm-3.0-x86_64
xen_scheduler
: credit
xen_pagesize
: 4096
platform_params
: virt_start=0xffff800000000000
xen_changeset
: unavailable
cc_compiler
: gcc version 4.3.1 (Debian 4.3.1-2)
cc_compile_by
: waldi
cc_compile_domain :
debian.org
cc_compile_date
: Sat Jun 28 09:32:18 UTC 2008
xend_config_format : 4
#lspci -v
09:00.0 Ethernet controller: Broadcom
Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
Subsystem:
Dell Device 01b2
Flags: bus
master, 66MHz, medium devsel, latency 64, IRQ 16
Memory at
f4000000 (64-bit, non-prefetchable) [size=32M]
Capabilities:
[40] PCI-X non-bridge device
Capabilities:
[48] Power Management version 2
Capabilities:
[50] Vital Product Data <?>
Capabilities:
[58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Kernel driver
in use: bnx2
Kernel modules:
bnx2
#ethtool -i peth0
driver: bnx2
version: 1.7.5
firmware-version: 2.9.1
bus-info: 0000:05:00.0
XEN-B:
- XEN 4.0.1 kernel pvops 2.6.32.24
#xm info
release
: 2.6.32.24
version
: #1 SMP Thu Oct 14 10:56:13 CEST 2010
machine
: x86_64
nr_cpus
: 4
nr_nodes
: 1
cores_per_socket
: 2
threads_per_core
: 1
cpu_mhz
: 1995
hw_caps
: bfebfbff:20100800:00000000:00000940:0004e33d:00000000:00000001:00000000
virt_caps
: hvm
total_memory
: 24570
free_memory
: 10
node_to_cpu
: node0:0-3
node_to_memory
: node0:10
node_to_dma32_mem :
node0:9
max_node_id
: 0
xen_major
: 4
xen_minor
: 0
xen_extra
: .1
xen_caps
: xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
hvm-3.0-x86_64
xen_scheduler
: credit
xen_pagesize
: 4096
platform_params
: virt_start=0xffff800000000000
xen_changeset
: unavailable
xen_commandline
: loglvl=all guest_loglvl=all sync_console console_to_ring com1=19200,8n1
console=com1
cc_compiler
: gcc version 4.3.2 (Debian 4.3.2-1.1)
cc_compile_by
: root
cc_compile_domain :
test.com
cc_compile_date
: Thu Oct 14 03:37:34 EDT 2010
xend_config_format : 4
#ethtool -i peth0
driver: bnx2
version: 2.0.2
firmware-version: 2.9.1
bus-info: 0000:05:00.0
#lspci -v
09:00.0 Ethernet controller: Broadcom
Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
Subsystem:
Dell Device 01b2
Flags: bus
master, 66MHz, medium devsel, latency 64, IRQ 1245
Memory at
f4000000 (64-bit, non-prefetchable) [size=32M]
Capabilities:
[40] PCI-X non-bridge device
Capabilities:
[48] Power Management version 2
Capabilities:
[50] Vital Product Data <?>
Capabilities:
[58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
Kernel driver
in use: bnx2
Kernel modules:
bnx2_______________________________________________
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