Compaq W6000 Hyper-Threading Technology, New Feature of Intel Xeon Processor - Page 10
Hyper-Threading and Microsoft Windows 2000
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Hyper-Threading Technology, New Feature of Intel Xeon Processor White Paper 10 Figure 5: Figure 6: Figure 7 shows the Task Manager on a system that has only one processor with Hyper-Threading disabled. Figure 7: Hyper-Threading and Microsoft Windows 2000 Microsoft Windows 2000 Professional Edition only supports up to a maximum of two processors. The OS can only recognize two CPUs, even-though the system has two physical CPUs that support Hyper-Threading and have Hyper-Threading enabled. The OS does not recognize the case of one physical CPU with Hyper-threading enabled versus the case of two physical CPUs, regardless of Hyper-Threading enabled or disabled. The Task Manager in Figure 8 reflects these three cases. The first case with two logical CPUs will have less performance than the other two cases. Figure 9 shows a single processor system with Hyper-Threading disabled. 167T-0202A-WWEN