On Wed, Nov 04, 2009 at 12:39:05PM +0100, Michal Suchanek wrote: > This is not something that is completely addressed in Coyotos either - > there still can be observable increase in latency when the system is > under load. Coyotos aims to get nearer to the absolute isolation > ideal, though.
AFAICT, it is possible to arrange things in Coyotos so that (say) things don't get swapped to disk and that memory is always available for the services that need it. There were various discussions about this to do with windowing systems; for example, you want to know that you'll always be able to bring up a "task manager" to kill off offending processes, hence a way of reserving the appropriate resources for this in advance is needed. This example involves quite complicated interactions between lots of different services needed to do its work and arranging all this is somewhat difficult. -- Sam http://samason.me.uk/
