This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] streaming server on a virtual machine.

On Sun, Sep 27, 2009 at 12:56 AM, Mauro <mrsanna1@xxxxxxxxx> wrote:
> 2009/9/26 Grant McWilliams <grantmasterflash@xxxxxxxxx>:
>> I will also add that if Xen has a bottleneck it's traffic between DomUs.
>> Don't configure it in any way to have
>> one DomU servicing another DomU unless both have real  network cards
>> attached to them.

> Thank you for your answer it was very exhaustive.
> I've learned a new thing, that is the poor performance in traffic
> between domU in the same machine rather than domU in different
> machines.
> I've a domU with tomcat and many jruby applications and, in the same
> machine, another domU as database server with postgres.
> Based on what you say I've to reconfigure my systems to have domU in
> different machines.

Were you having network performance problems?
There was a thread on this list some time ago about domU <-> domU
network performance, and the ones that experience it were using newer
pv_ops kernels while people who use 2.6.18 kernel (like RHEL/Centos5)
or Suse -xen kernel got good performance.


Instead of having a second physical server just to get decent
performance, I'd say it's easier to simply change your dom0 kernel.


Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>