Re: [RFC] VMI for Xen?

[Anthony Liguori <aliguori@us.ibm.com>]

Chris Wright wrote:
> * Ian Pratt (m+Ian.Pratt@cl.cam.ac.uk) wrote:
>   
>>> Just some food for thought,  I did a simple analysis of the 
>>> size of Xen Linux patches verses the VMI patches.  To make 
>>> things more fair, I removed everything from the XenoLinux 
>>> port accept for the i386 xen subarch (so no drivers and no 
>>> support for other architectures).
>>>       
>> Your analysis is still taking all the patches to make dom0 functionality
>> work, which accounts for a lot of changes and is totally outside of the
>> scope of VMI.
>>
>> We've been working with a bunch of RH/Novell folks to create a stripped
>> down domU-only Xen patch that would be a fairer comparison.
>>     
>
> Here's a really imprecise view into that.  Keeping with Anthony's
> metrics:
>
>  88 files changed, 7637 insertions(+), 436 deletions(-)
>   
Interesting.
> That's near meaningless, as it's not something that would compile and
> run, but gives you a scope of the size of the changes for domU only
> (shadow mode), no Xen drivers, etc..
>   
Okay, but that is on par with the amount of changes present in VMI.  
That's a really interesting data point.

Thanks,

Anthony Liguori
> thanks,
> -chris
>