By default HP Proliant servers are designed to deliver the maximum balance between performance and power consumption. But these default settings might not provide the lowest latency in all the cases. When you are tuning it you have to observe some settings that help in obtaining optimal low-latency performance.
The main power option for the any deployment in low-latency OS kernel environment to set the power regulator mode to HP Static High Performance Mode. When this settings are applied processors will run in their maximum power/performance state all the times regardless of the OS power management policy settings. In the factory setting the Power regulator is set to HP Dynamic Power Saving Mode which needs to change to HP Static High Performance Mode.
This settings can be made in HP BIOS. For that turn on the server and press F9 when prompting.
That will enter you to the server BIOS settings. See the bellow screen.
Under system settings choose Power regulator for ProLiant. You can see the default setting is HP Dynamic Power Saving Mode.
Press enter to change the settings and choose option HP Static High Performance Mode and press Enter again.
Now press F10 to save settings and quit the BIOS. The server will reboot and start the new settings.
Hope the above information is useful for you. Leave a comment if you want to discuss more.
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