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Controlling power management in micro-server cores and peripherals

  • US 9,454,210 B2
  • Filed: 03/31/2012
  • Issued: 09/27/2016
  • Est. Priority Date: 03/31/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method comprising:

  • using side band communication, causing one or more peripherals of a server having multiple cores to delay operations based on determining that the cores are being placed into a first power consumption state;

    placing the cores into a second power consumption state for a time period, the second power consumption state consuming less power than the first power consumption state;

    using the sideband communication, causing the one or more peripherals to resume operations based on an expiration of the time period wherein the sideband communications are conducted with a Gigabit Ethernet controller and wherein the Gigabit Ethernet controller is to delay operations by aligning interrupts;

    placing the cores into a third power consumption state based on the expiration of the time period, the third power consumption state consuming more power than the first power consumption state and the second power consumption state; and

    placing the cores into the third power consumption state based on receiving an indication that the one or more peripherals are unable to continue to delay their operations before the expiration of the time period.

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