[Lxc-users] Dreadful network performance, only to host from container

[Matt Bailey]

/usr/sbin/ethtool -K br0 sg off
/usr/sbin/ethtool -K br0 tso off

Might fix your problem, YMMV; this worked for me.

--
Matt Bailey
303.871.4923
Senior Software Specialist
University of Denver, UTS
http://du.edu
http://system42.net



On Thu, May 27, 2010 at 4:48 AM, atp <Andrew.Phillips at lmax.com> wrote:
> Toby
>
> Just FYI in case you were unaware - it seems one of your MXs is black
> holed.
>
> I tried to email you direct, but messagelabs said;
> <toby.corkindale at strategicdata.com.au>:
> 74.125.148.10 does not like recipient.
> Remote host said: 554 5.7.1 Service unavailable; Client host
> [74.125.149.113] blocked using sbl-xbl.spamhaus.org;
> http://www.spamhaus.org/query/bl?ip=74.125.149.113
>
> reply below;
> ---
> A quick look, all looks reasonably normal, txqueuelen for br0 is 0, and
> probably should be more than 1000.
>
> The number of packets on eth0 seems very small - 1416 and 495. rx/tx
>
> I take it you've checked for things like arp poisoning - two of the
> containers having the same mac address?
>
> What does the flow of packets with tcpdump look like from the container?
> Are you seeing resets, packet duplicates, retransmissions?
>
> Andy
>
>
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