Re: [User-mode-linux-devel] latest cvs checkins

[lars b. <la...@no...>]

Jeff Dike <jd...@ka...> writes:
> This is a first pass of the SMP support.

How about NUMA support?  Multiple UML's could be communicating across
a network to give the appearance of one big NUMA machine.

Of course, access to memory on another network node will be slow,
especially access to shared writable pages.  But then, that's normal
on NUMA machines.

Memory type:                    Access method:
local read-only                 direct access
local read-write, COW           direct access
local read-write, shared        direct access (unless being written remotely)
remote read-only                copied from remote node, then direct access
remote read-write, COW          copied from remote node, then direct access
remote read-write, shared       something painful