Re: Problem with growing up dom0 memory

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Sat, Oct 27, 2012 at 06:59:50PM +0700, Vadim A. Misbakh-Soloviov wrote:
> Uhm. It seems, it is 4.1.3 (as you can see from xl info) on 3.5.3-kernel
> node, but I have all following issues even on 3.6.3-kernel node with 4.2.0.

I believe that might be related to the autoballon functionality. Have
you tried disabling it.
> 
> P.S.:
> By the way, I also has some network speed issues with domUs:
> 
> one_node ~mva % scp bkp.txz domU_on_another_node:/home/mva
> bkp.txz
> 
>                                       3%  592KB 259.7KB/s   0.0KB/s
> 01:12 ETA^CKilled by signal 2.
> one_node ~mva % scp bkp.txz another_node_itself:/home/mva
> bkp.txz
> 
>                                     100%   19MB   3.8MB/s   6.2MB/s
> 00:05
> 
> almost the same for reversed process (downloading from that places)
> it is rt8169 ethernet driver on "one_node", e1000e on "another_node" and
> I dunno which driver Xen uses for domUs, but:
> domU ~mva % dmesg|grep -i 'Xen.*eth'
> Initialising Xen virtual ethernet driver

There is a Wiki that explains this( Google for Network Xen Wiki). I think you need to set an
TSO (or maybe it is another flag) off on the guest's adapter.