Re: [Xen-users] Slow network speed with Xen 3.2-1

[virtualroot <virtualroot@xxxxxxxxx>]

On Fri, Sep 11, 2009 at 3:46 PM, Brent Verner <brent@xxxxxxxxxxxx> wrote:
> I had a similar problem and the solution was to disable checksum
> offloading in the domU.
>
> sh# ethtool -K eth0 tx off

i tried this before but it didn't work. :(
Any other idea?

Regards,
Alejandro.


> You can add this to your /etc/network/interfaces, too..
>
>  post-up  ethtool -K eth0 tx off
>
>
> I also had to disable this in my dom0 for dhcp to work...
>
> cheers!
>  b
>
> On Thu, Sep 10, 2009 at 2:19 PM, virtualroot <virtualroot@xxxxxxxxx> wrote:
>> I'm getting a slow network speed (download/upload) domU and dom0
>> limits in 10kbps/20kbps.
>> Booting a kernel without Xen, this doesnt happens
>>
>> /etc/xen/xend-config.sxp
>> (network-script network-bridge)
>> (vif-script vif-bridge)
>> (dom0-min-mem 196)
>> (dom0-cpus 0)
>>
>> cat /etc/xen/XXX.cfg
>> kernel      = '/boot/vmlinuz-2.6.26-1-xen-amd64'
>> ramdisk     = '/boot/initrd.img-2.6.26-1-xen-amd64'
>>
>> memory      = '2048'
>> vcpus = '4'
>>
>> root        = '/dev/sda2 ro'
>> disk        = [
>>                  'phy:/dev/storage/XXX-disk,sda2,w',
>>                  'phy:/dev/storage/XXX-swap,sda1,w',
>>              ]
>>
>> name        = 'XXX'
>> vif         = [ 'ip=190.228.X.X,mac=00:16:3E:37:17:9A' ]
>>
>> root = "/dev/sda2 ro noapic acpi=off nopcmcia noagp nobluetooth"
>> extra = "3 xencons=tty"
>>
>> on_poweroff = 'destroy'
>> on_reboot   = 'restart'
>> on_crash    = 'restart'
>>
>> I use Debian 5.0.2 kernel 2.6.26-1-xen-amd64
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>

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