Re: [Libvir] Major extensio of test backend driver functionality
On Wed, Aug 16, 2006 at 04:09:10PM +0100, Daniel P. Berrange wrote:
Ok, here comes the huge patch for today - a major extension of the
test
driver backend...
As well as the interal hardcoded 'test:///default' hypervisor config
you can now provide a path to an arbitrary XML file defining your HV
and its domains. An example file to define a moster 128x6GHz CPU box
with 128 GB of RAM and two guest domains looks like:
<node>
<domain file="testdomfv0.xml"/>
<domain file="testdomfc4.xml"/>
<cpu>
<mhz>6000</mhz>
<model>i986</model>
<active>50</active>
<nodes>4</nodes>
<sockets>4</sockets>
<cores>4</cores>
<threads>2</threads>
</cpu>
<memory>137438953472</memory>
</node>
The individual domains 'testdomfv0.xml' and 'testdomfc4.xml' are defined
using the regular libvirt XML format. The only exception is that the 'type'
attribute on the top level '<domain>' tag should be 'test' instead
of 'xen'
Sounds very cool :-)
[...]
Next up, I've written implementations of the set memory, set max
memory,
set vcpus, dump xml, create linux APIs for the test driver. THe only major
Okay. Push that too, you're basically in control of the test driver :-)
areas of functionality lacking in the test driver now are handling of
disk
and network devices when creating domains, and the VCPU pinning methods.
This test backend makes testing the virt-manager application much more
reliable - although we still do need some level of testing against a real
Xen backend (for example domain creation).
The big problem of real regression tests is the amount of data needed,
it's like 1GB per Xen system image, I don't see how that could go into CVS,
though I would really like to be able to always run 'make tests' and know
I didn't broke something in my local changes ... I welcome ideas on the
subject, the test driver will allow to cover some part of the code, but
not all of it that's sure.
Daniel
--
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard | virtualization library http://libvirt.org/
veillard(a)redhat.com | libxml GNOME XML XSLT toolkit http://xmlsoft.org/
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