[Libvirt-cim] virNodeGetFreeMemory() returns bytes with Xen driver

[Kaitlin Rupert]

Hi Tyrel,

My guess is that the libvirt documentation is incorrect.  I would follow 
up with the libvirt devs on libvir-list at redhat.com to be sure though.

Tyrel Datwyler wrote:
>
> The libvirt API states that the return value of virNodeGetFreeMemory() 
> is in kilobytes. When making this call against a Xen hypervisor and 
> comparing the returned value with what is listed by "xm info" it 
> appears that libvirt is returning the free memory in bytes and not 
> kilobytes. Can anybody confirm this behavior?
>
> This code snippet:
>
>     conn = virConnectOpen("xen:///localhost/");
>     hostmem = virNodeGetFreeMemory(conn);
>     fprintf(stdout, "Host free memory = %llu\n", hostmem);
>
> produces the following output:
>
>     Host free memory = 3236012032
>
> The following comes from running "xm info" on the Xen host:
>
>     free_memory            : 3086
>
> The libvirt value is convertable into the "xm" returned value if bytes 
> is assumed.
>
> Regards,
>
> Tyrel Datwyler
>
> Linux Software Engineer
> eServer Systems Management
> IBM Systems and Technology Group
> Email: tyreld at us.ibm.com
> External: (503) 578-3489,  T/L: 775-3489
>
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