[Xen-users] stubdom

[席康杰 <xikangjie@xxxxxx>]

Hi,

    I read slide Performance Tuning Xen, find stubdom can boost HVM performance,

so I try it, the wiki Device_Model_Stub_Domains says use the ‘device_model_stubdomain_override’

option in guest configuration file:

    device_model_stubdomain_override = 1

 

This is my cfg file:

 

name = "test_stubdom"

builder = "hvm"

vcpus = 2

memory = 1024

disk = ["tap:qcow2:test_stubdom.img,hda,w"]

vif = ["type=ioemu, bridge=xenbr0, mac=00:16:3e:eb:ca:80"]

boot = "c"

pae = 1

acpi = 1

apic = 1

localtime = 1

vga="stdvga"

vgaram=64

vnc = 1

vnclisten = "0.0.0.0"

vncdisplay = 128

vncunused = 0

vncpasswd = "test"

device_model_linux_stubdomain_override = 1

 

The vm can start, but it has no difference with “device_model_linux_stubdomain_override = 0”.

The dom0 also has backend qemu-system-i386 process for domain test_stubdom.

 

Did I use stubdom wrong? or how to use stubdom? anyone has an idea?

 

 

Thanks!

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