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Re: [Xen-users] Slow networking problem in dom0

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Emil Christopher Melar <typeof@xxxxxxxxx>
  • Date: Sat, 14 May 2011 18:03:03 +0200
  • Delivery-date: Sat, 14 May 2011 09:04:48 -0700
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On Sat, May 14, 2011 at 5:48 PM, Erwan RENIER <erwan.renier@xxxxxxxxxxx> wrote:
> And from domU to internet ?

Thanks for the response! :-)

domU to internet also has the same speed as LAN (600k/sec tops). It
climbs up to that speed slower and slower on a big download. Whereas
on dom0 <--> internet it gets to 2 MB/sec.

> Le 14/05/2011 16:34, Emil Christopher Melar a écrit :
>> I still have the same problem with slow LAN speed, and I may have to
>> see myself forced to drop Xen altogether, which is kind of sad.
>> Any hint would be greatly appreciated!
>> On Fri, Apr 29, 2011 at 6:33 PM, Emil Christopher Melar
>> <typeof@xxxxxxxxx>  wrote:
>>> On Fri, Apr 29, 2011 at 5:12 PM, Mike Wright<mike.wright@xxxxxxxxxxxxxx>
>>>  wrote:
>>>> This may be the problem.  Try "ethtool -K eth0 tx off"
>>> Thanks for the suggestion, but it made no difference. I tested domU
>>> <--->  dom0 and that was lightning fast actually. But I would expect
>>> that from a virtual bridge.
>>> dom0<-->  internet seems to also go faster. I get 500-600 kb/s  on
>>> LAN, but 1.5MB/s on internet from dom0, which is my max.
>>> Isn't my bridge setup pretty standard? Seems like LAN speed is the
>>> problem.
>>> --
>>> Emil Christopher Solli Melar

Emil Christopher Solli Melar

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