Systems and methods for monitoring and managing memory blocks to improve power savings

摘要

Systems and methods are provided for placing a portion of a memory into a low power mode. A system includes a hot spot region creator configured to determine an activity level for each of a plurality of regions of a memory, where certain of the regions are determined to be active regions, and where certain of the regions are determined to be inactive regions and rearrange the data to position the active region data in a contiguous active portion of memory and to position the inactive regions data in a contiguous inactive portion of memory. A memory controller is configured to place the contiguous inactive portion of memory into a low power mode.

主权项

1. A method of placing a portion of a memory into a low power mode, comprising:
receiving an activity type that represents a type of current or upcoming activity by a processor; accessing one hot spot profile of a plurality of hot spot profiles based on the activity type; determining an activity level for each of a plurality of regions of a memory, wherein certain of the regions are determined to be active regions, and wherein certain of the regions are determined to be inactive regions, and wherein the accessed hot spot profile is used to determine the activity level for the regions, wherein which regions are determined to be active regions and which regions are determined to be inactive regions varies across the plurality of hot spot profiles; positioning data of the active regions in a contiguous active portion of the memory and positioning data of inactive regions in a contiguous inactive portion of the memory; and placing the contiguous inactive portion of memory into a low power mode.