Re: Issues with Ubuntu 14 as a guest VM, and network throughput..

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On 09/30/2014 01:50 AM, Howard Leadmon wrote:
> Has anyone run into this, or have any idea, or know of any tunable
> changes I can make that would make the VM play nice with the newer
> recommended kernel?   I was actually stunned changing kernels made
> the diff between getting hundreds of megs of throughput on the
> host, to getting a meg or two if lucky, with constant pauses.    At
> the same time, my other CentOS and FBSD VM's seem to run fine, but
> then again CentOS sticks with an older kernel it seems.
> 

There is an open bug regarding the hypervisor low performance in 14.04.
This is probably a kernel issue and they had a patch for it as far as
I can remember hat tested the issue.

You can try to contact the mailing list of ubuntu servers and lookup
the bug at the bugzilla.

Eliezer
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