[Libvirt-cim] CimTest Report for KVM on F9 23-07-2008

[Deepti B Kalakeri]

Dan Smith wrote:
> DK> Yes, the test case is passing the RASD values which is inturn used
> DK> for generating the XML configuration of the domain.  According to
> DK> my analysis, to create a KVM guest we need atleast 1024 memory
> DK> units.  Currently the test library vsms.py which is responsible
> DK> for creating MemRASD values is passing only VirtualQuantity=512.
>
> Aiee.  The libvirt XML specifies memory in kilobytes, which means 512
> rounds to zero.  The fact that you can create a Xen guest is probably
> just because of a lack of verification.  The QEMU command line takes
> memory in megabytes, so anything less than that isn't really valid.
>
> This was changed (fixed) in my recent patch to make the providers
> honor AllocationUnits in the MemRASD on DefineSystem().
>
> DK> This value is *not sufficient* for creating a *KVM* guest, but is
> DK> *just enough* for *Xen, XenFV* guests.
>
> Perhaps just enough to create the guest, but not start it.  Not even
> MS-DOS can run in 512 bytes of memory...
>
> DK> Also, AllocationUnits is one of the important field of MemRASD
> DK> that determines the Memory and CurrentMemory fields in the XML
> DK> configuration.
>
> Indeed, which is why I wrote the (still unreviewed) test for
> AllocationUnits last week.
>
> DK> 1) As an extention to the 40_RSC_start.py tc we can actually pass
> DK> different combination of VirtualQuantity and AllocationUnits to test
> DK> the mem_rasd_to_vdev code path.
>
> My test exercises all of the AllocationUnits paths.  40_RSC_start
> isn't the proper place for that, IMHO.
>   
Cool, I have not yet got a chance to review the patches.
> I think you should change the default VirtualQuantity to 32, and the
> AllocationUnits to "MegaBytes" for this case.
>
>   
I will try using this. Thanks.

Regards,
Deepti.
> Thanks!
>
>   
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