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xen-users
Re: [Xen-users] dom0 lost packets.
Bogdan B. Rudas wrote:
On Wed, 23 Apr 2008 13:12:11 -0400
"Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx> wrote:
I heard on the list that disabling checksum offloading on the NIC
with ethtool helps clear it up. I believe it is on TX only and this
is of course on the physical interface in dom0.
Thanx for your advice.
[snip]
There are still packet loss:
I'm also seeing large amounts of packet loss as displayed in xm top for
the vif of any domU which is doing disk and network IO concurrently.
Network performance is fine by itself, but when there is disk IO at the
same time network gets very bad.
Tried disabling checksum offloading and this has made no difference.
dom0:
44745 packets transmitted, 43039 received, 3% packet loss, time 44745397ms
rtt min/avg/max/mdev = 0.135/0.199/4.386/0.061 ms
domU:
44643 packets transmitted, 43879 received, 1% packet loss, time 44643431ms
rtt min/avg/max/mdev = 0.153/0.208/2.991/0.043 ms
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