Copyright by William Lloyd Bircher 2010 - The Laboratory for ...

List of Tables
Table 1.1 Windows Vista Reactive DVFS ...................................................................... 5
Table 2.1 Desktop System Description ......................................................................... 14
Table 2.2 Server System Description ............................................................................ 15
Table 2.3 Subsystem Components ................................................................................ 15
Table 2.4 Laptop System Description ........................................................................... 19
Table 2.5 Workload Description ................................................................................... 22
Table 3.1. Intel Pentium 4, High and Low Correlation Performance Metrics .............. 25
Table 3.2 Percent of Fetched µops Completed/Retired – SPEC CPU 2000 ................. 26
Table 3.3 µop Linear Regression Model Comparison .................................................. 28
Table 3.5 Instruction Power Consumption .................................................................... 30
Table 3.6 µop Linear Regression Model Comparison .................................................. 31
Table 3.7 Example P-states Definition .......................................................................... 33
Table 3.8 Example C-states Definition ......................................................................... 34
Table 3.9 AMD Quad-Core Power Model .................................................................... 39
Table 4.1 Subsystem Power Standard Deviation (Watts) ............................................. 53
Table 4.2 Coefficient of Variation ............................................................................... 54
Table 4.3 Percent of Classifiable Samples .................................................................... 58
Table 4.4 Workload Phase Classification ..................................................................... 59
Table 5.1 Integer Average Model Error ........................................................................ 82
Table 5.2 Floating Point Average Model Error............................................................. 83
Table 5.3 System Comparison ...................................................................................... 85
Table 5.4 Desktop Workloads ....................................................................................... 87
Table 5.5 Average Error .............................................................................................. 101
Table 6.1 Performance Loss Due to Low Idle Core Frequency – SPEC CPU 2006 .. 111
Table 6.2 Power/Performance Study: SYSmark 2007 ................................................ 116
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