HP BladeSystem Family - Critical Facilities Round Table
HP BladeSystem Family - Critical Facilities Round Table
HP BladeSystem Family - Critical Facilities Round Table
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Power Regulator for ProLiant<br />
<strong>HP</strong> Performance Bench Tests<br />
• In constant Power Saver<br />
Mode, a DL380 G4<br />
experienced<br />
Impact of Power Savings Mode on<br />
System Power and Performance<br />
DL380 G4<br />
− no performance loss up to<br />
80% CPU utilization and<br />
− 18% system power savings<br />
• Most customer systems<br />
operate well below 80%<br />
CPU utilization<br />
Power Reduction (%)<br />
0%<br />
-5%<br />
-10%<br />
-15%<br />
-20%<br />
-25%<br />
-30%<br />
Percent CPU Utilization<br />
0 20 40 60 80 100<br />
Min Power Zone<br />
0%<br />
-1%<br />
-2%<br />
-3%<br />
-4%<br />
-5%<br />
-6%<br />
Performance Loss (%)<br />
% Pwr Reduction<br />
% Perf Loss<br />
Performance and Power impact is dependent on configuration, application and load.
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