On 2009年8月25日, Pasi Kärkkäinen wrote:

On Tue, Aug 25, 2009 at 01:30:34PM -0500, Nathan Stratton wrote:

I am having no issues with para guests, but HVM guests all show dropped
packets.

Try changing the Qemu emulated NIC to Intel e1000. Maybe that helps with the
performance.

Same

Or then use PV drivers in the guest.

Can't, its a HVM guest that I don't have control over.

-- Pasi

I am runing Xen 3.4.1 on linux 2.6.31-rc6, but also have tried older xen
and kernels.
Also, not sure why I have a vif and a tap for my HVM guests, only have vif
for para.
[root@xen1 config]# ifconfig tap19.0
tap19.0 Link encap:Ethernet HWaddr B6:B7:E1:71:09:3C
 inet6 addr: fe80::b4b7:e1ff:fe71:93c/64 Scope:Link
 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
 RX packets:34507 errors:0 dropped:0 overruns:0 frame:0
 TX packets:43841 errors:0 dropped:0 overruns:645 carrier:0
 collisions:0 txqueuelen:500
 RX bytes:16847714 (16.0 MiB) TX bytes:22711872 (21.6 MiB)
[root@xen1 config]# ifconfig tap19.1
tap19.1 Link encap:Ethernet HWaddr 76:C7:74:AF:CA:EC
 inet6 addr: fe80::74c7:74ff:feaf:caec/64 Scope:Link
 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
 RX packets:36601 errors:0 dropped:0 overruns:0 frame:0
 TX packets:36018 errors:0 dropped:0 overruns:457 carrier:0
 collisions:0 txqueuelen:500
 RX bytes:18152679 (17.3 MiB) TX bytes:17744980 (16.9 MiB)
[root@xen1 config]# ifconfig vif19.0
vif19.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
 inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
 RX packets:0 errors:0 dropped:0 overruns:0 frame:0
 TX packets:0 errors:0 dropped:2908 overruns:0 carrier:0
 collisions:0 txqueuelen:32
 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
[root@xen1 config]# ifconfig vif19.1
vif19.1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
 inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
 RX packets:0 errors:0 dropped:0 overruns:0 frame:0
 TX packets:0 errors:0 dropped:181 overruns:0 carrier:0
 collisions:0 txqueuelen:32
 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
[root@xen1 config]# more proxy0.hou-para
import os, re
arch = os.uname()[4]
if re.search('64', arch):
 arch_libdir = 'lib64'
else:
 arch_libdir = 'lib'
kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'
name = "proxy0.hou"
memory = 2048
vcpus=4
disk = [ 'file:/share/xen/images/proxy0.hou.img,xvda,w', ]
vif = [ 'mac=00:11:25:00:1E:01, type=ioemu, bridge=private',
 'mac=00:11:25:00:1E:02, type=ioemu, bridge=public' ]
uuid = '00000014-1111-2222-3333-200809231904'
device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'
sdl=0
opengl=1
vnc=1
vncpasswd=''
stdvga=0
serial='pty'

<>

Nathan Stratton CTO, BlinkMind, Inc.
nathan at robotics.net nathan at blinkmind.com
http://www.robotics.net http://www.blinkmind.com
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