Dynamic control of memory bandwidth allocation for a processor

    公开(公告)号:US11726910B2

    公开(公告)日:2023-08-15

    申请号:US16816779

    申请日:2020-03-12

    CPC classification number: G06F12/0646 G06F11/3037 G06F11/3495 G06F2212/1044

    Abstract: Examples include a computing system for receiving memory class of service parameters; setting performance monitoring configuration parameters, based at least in part on the memory class of service parameters, for use by a performance monitor of a memory controller to generate performance monitoring statistics by monitoring performance of one or more workloads by a plurality of processor cores based at least in part on the performance monitoring configuration parameters; receiving the performance monitoring statistics from the performance monitor; and generating, based at least in part on the performance monitoring statistics, a plurality of memory bandwidth settings to be applied by a memory bandwidth allocator to the plurality of processor cores to dynamically adjust priorities of memory bandwidth allocated for the one or more workloads to be processed by the plurality of processor cores.

    Systems and methods for in-field core failover

    公开(公告)号:US10552270B2

    公开(公告)日:2020-02-04

    申请号:US15388146

    申请日:2016-12-22

    Abstract: A multicore processor may include multiple processing cores that were previously designated as active cores and at least one processing core that was previously designated as a functional spare. The processor may include an interface to receive, during operation of the processor in an end-user environment, a request to change the designation of at least one of the processing cores. The processor may be to store, into a desired cores configuration data structure in response to the request, data representing a bitmask that reflects the requested change, and to execute a reset sequence. During the reset sequence, the processor may activate, dependent on the bitmask, a processing core previously designated as a functional spare, or may deactivate, dependent on the bitmask, a processing core previously designated as an active core. The processor may include a predetermined maximum number of active cores and a predetermined minimum number of functional spares.

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