HP ProLiant ML310e HP Power Regulator for ProLiant servers - Page 8
Static High Performance mode, Static Low Power mode, Dynamic Power Savings mode Slow response
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Figure 2 shows Power Regulator mode comparisons under different CPU utilization (performance) loads using the two-processor DL380 G7 server with Quad-core Intel Xeon 5670 2.93-GHz processors. At loads under 70% of the maximum performance, Static Low Power mode uses up to 8% less power than Static High Performance mode to provide the same performance. Figure 2 also shows that Dynamic Power Savings mode (slow response) uses the entire CPU performance range like Static High mode, but provides the same power savings as Static Low mode. Figure 2. Power and performance comparison of the DL380 G7 server in Dynamic Power Savings mode (slow and fast response time) and Static modes (Low Power and High Performance) 100 90 80 Power (percent) 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Performance (percent) Dynamic Power Savings mode (Slow response) Dynamic Power Savings mode (Fast response) Static High Performance mode Static Low Power mode 8