From: Jeff Dike <jdike@ad...> - 2008-08-04 16:50:04
On Fri, Aug 01, 2008 at 02:10:07PM +0100, Jay Shah wrote:
> Does anyone know how UML behaves with multi-core systems? Does the
> process glue to one core for as long as it runs for, or use all cores
> whenever it wants?
Depends on the host scheduler and the load. Linux likes cpu affinity,
within limits, so a process will tend to stick to the same core.
There is some parallelism with UML (kernel vs I/O thread), so those
will occupy different cores if they are available.
Work email - jdike at linux dot intel dot com