No, there are other things which affect timing besides switching to other processes. For example, virt:physical mapping of the process memory affects cache performance unpredictably, see http://d3s.mff.cuni.cz/publications/download/hocko-sipew10.p...

No, there are other things which affect timing besides switching to other processes. For example, virt:physical mapping of the process memory affects cache performance unpredictably.