Understanding HTT Architecture and its impact on processor's performance

Abstract

This paper deals with Hyper-Threading Technology architecture and also architecture design and working of Intel's processor. Hyper- Threading Technology transforms a single physical processor into two logical processors by sharing physical execution resources and duplicating the architecture state for the two logical processors. This means that operating systems and user programs can schedule processes or threads to logical processors in the same way that they would on multiple physical processors. In terms of microarchitecture, this means that instructions from both logical processors will persist and run on shared execution resources at the same time, this technology is bound to get more popular in the future as it introduces a replacement strategy for achieving extra performance while reducing transistor and power costs.