System implementing multi-threaded applications

A method for executing instructions embedded in two threads stored in a system including two operating units and a virtual managing entity for holding queues for virtual objects (VO) waiting to use a respective operating unit and diverting them between queues. Each VO is associated with two virtual timers, one measuring a time period during which the VO is held in the queue (TIQ) and the other providing time period during which the VO will remain in an alive state (TTL). The method includes receiving information relating to VOs associated with the two threads; operating on VOs for which their TTLs have expired; upon emerging from its respective queue, determining whether each VO should be diverted to another queue; upon diverting the VO, resetting its TIQ timer; and allocating an access time to each VO based on a number of threads requiring that VO and the TIQ associated therewith.