[libvirt] [PATCH v2 1/2] add nodeset='all' for interleave mode

[Daniel P. Berrangé]

On Thu, Oct 11, 2018 at 12:03:44PM -0400, John Ferlan wrote:
> 
> 
> On 9/29/18 6:58 AM, Peng Hao wrote:
> > sometimes we hoped that the memory of vm can be evenly distributed in
> > all nodes according to interleave mode. But different hosts
> > has different node number. So we add nodeset='all' for interleave mode.
> > 
> > Signed-off-by: Peng Hao <peng.hao2 at zte.com.cn>
> > ---
> >  src/conf/numa_conf.c          | 77 ++++++++++++++++++++++++++++++++++++-------
> >  1 files changed, 64 insertions(+), 13 deletions(-)
> > 
> Anyway, back to the cpuset/nodeset presentation. If today it's "A,C,E"
> or "A-E,^B,^D", then why not devise a way to use "0,~0" meaning 0 and
> the one's complement of 0 (e.g. everything else). That way if I wanted
> to, I could "0,~0,^4" meaning everything except 4. Of course the
> downside is that I need to know what the guest maximum is. The only way
> to know that is in post parse processing. So doing this may involve
> moving the translation of @nodeset and @cpuset...

Adding  ~0 will break applications parsing the attribute in the same
way "all" will, as they will reject '~' as an invalid value.


Regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|