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A comment on Deleting a Few LOC Can Yield “Significant” Power Savings on Some Linux Systems.

Re:Deleting a Few LOC Can Yield “Significant” Power Savings ... by clarry on Friday May 22, 2020 @05:54AM (#23270320)
To save you a click: There was code that disabled ASPM[1] when you have a PCI bridge connected downstream of PCIe. That code is gone now.

https://en.wikipedia.org/wiki/Active_State_Power_Management

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Re:Deleting a Few LOC Can Yield “Significant” Power Savings ... by kees99 on Friday May 22, 2020 @06:59AM (#23270727)
Reminds me of the Raspberry pi 4 update, where enabling ASPM shaved something like 10% off the idle power consumption:

https://www.cnx-software.com/2019/06/29/new-raspberry-pi-4-v...

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