[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH]Add free memory size of every NUMA node in phsical info



On Tue, Feb 26, 2008 at 10:46:17AM +0800, Duan, Ronghui wrote:
> I see that, the reason I don't use that function is there need one more
> time hypercall, I only reuse the function which have been realized in
> hypervisor. Thanks for your advice.

The performance impact of doing 1 extra hypercall for 'availheap' is
completely irrelevant in this context. The time for 1 extra hypercall
is dwarfed (by several orders of magnitude) by the overhead due to
'xm' and 'xend' being in python & using XML-RPC. We should just use
the existing hypercall & not worry about time overhead we'll never
notice.

Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=| 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.