摘要:
A method, system and computer program product implement memory performance management and enhanced memory reliability of a computer system accounting for system thermal conditions. When a primary memory temperature reaches an initial temperature threshold, reads are suspended to the primary memory and reads are provided to a mirrored memory in a mirrored memory pair, and writes are provided to both the primary memory and the mirrored memory. If the primary memory temperature reaches a second temperature threshold, write operations to the primary memory are also stopped and the primary memory is turned off with DRAM power saving modes such as self timed refresh (STR), and the reads and writes are limited to the mirrored memory in the mirrored memory pair. When the primary memory temperature decreases to below the initial temperature threshold, coherency is recovered by writing a coherent copy from the mirrored memory to the primary memory.
摘要:
A method, system and computer program product implement memory performance management and enhanced memory reliability of a computer system accounting for system thermal conditions. When a primary memory temperature reaches an initial temperature threshold, reads are suspended to the primary memory and reads are provided to a mirrored memory in a mirrored memory pair, and writes are provided to both the primary memory and the mirrored memory. If the primary memory temperature reaches a second temperature threshold, write operations to the primary memory are also stopped and the primary memory is turned off with DRAM power saving modes such as self timed refresh (STR), and the reads and writes are limited to the mirrored memory in the mirrored memory pair. When the primary memory temperature decreases to below the initial temperature threshold, coherency is recovered by writing a coherent copy from the mirrored memory to the primary memory.
摘要:
Methods and data processing systems for using a buffer to replace failed memory cells in a memory component are provided. Embodiments include determining that a first copy of data stored within a plurality of memory cells of a memory component contains one or more errors; in response to determining that the first copy contains one or more errors, determining whether a backup cache within the buffer contains a second copy of the data; and in response to determining that the backup cache contains the second copy of the data, transferring the second copy from the backup cache to a location within an error data queue (EDQ) within the buffer and updating the buffer controller to use the location within the EDQ instead of the plurality of memory cells within the memory component.
摘要:
Methods and data processing systems for using a buffer to replace failed memory cells in a memory component are provided. Embodiments include determining that a first copy of data stored within a plurality of memory cells of a memory component contains one or more errors; in response to determining that the first copy contains one or more errors, determining whether a backup cache within the buffer contains a second copy of the data; and in response to determining that the backup cache contains the second copy of the data, transferring the second copy from the backup cache to a location within an error data queue (EDQ) within the buffer and updating the buffer controller to use the location within the EDQ instead of the plurality of memory cells within the memory component.
摘要:
Systems and methods are provided to process a request for a memory space from a memory controller. A particular method may include communicating, by a memory controller, a request for a memory space of a memory to a computer program. The memory controller is configured to initialize the memory, and the memory controller is configured to perform operations on the memory as instructed. The computer program is configured to make memory spaces of the memory available in response to requests for the memory spaces of the memory. The method may also include using, by the memory controller, the memory space in response to an indication from the computer program that the memory space is available. Also provided are systems and methods for copying a memory space by a memory controller to a memory space under exclusive control of the memory controller.
摘要:
Systems and methods are provided to process a request for a memory space from a memory controller. A particular method may include communicating, by a memory controller, a request for a memory space of a memory to a computer program. The memory controller is configured to initialize the memory, and the memory controller is configured to perform operations on the memory as instructed. The computer program is configured to make memory spaces of the memory available in response to requests for the memory spaces of the memory. The method may also include using, by the memory controller, the memory space in response to an indication from the computer program that the memory space is available. Also provided are systems and methods for copying a memory space by a memory controller to a memory space under exclusive control of the memory controller.