x32 abi support?

Richard W.M. Jones rjones at redhat.com
Thu May 17 18:28:04 UTC 2012

On Wed, May 16, 2012 at 03:30:23PM +0100, Matthew Garrett wrote:
> On Wed, May 16, 2012 at 04:28:31PM +0200, Lennart Poettering wrote:
> > Mhmm, so I was under the impression that x32 was mostly about increasing
> > the scalability of virtualized systems. i.e. run a higher number of
> > x32 containers/VM on an x86_64 host. Most server software that is run in
> > containers/VMs does not require 64bit address space, and hence using x32
> > for them should be quite benificial so that you can run more
> > containers/VMs per host. After all this would reduce memory and CPU
> > consumption of each, and due to smaller memory usage also result in less
> > IO?
> I was under the impression that it was to make Android work better on 
> Intel. Scalable VMs are an interesting idea, but for a typical session 
> how much RAM are we talking about?

... and also how does it compare to other (better IMHO) approaches
such as KSM?


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.

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