Micron Technology, Inc.
TIME TO LIVE FOR MEMORY ACCESS BY PROCESSORS

Abstract:

Systems, apparatuses, and methods to implement time to live for memory access by processors. For example, a processor has a register configured to store a parameter specifying a time duration indicative of the desired time to live. A memory system has multiple components with different latencies for memory access. When the memory controller of the processor sends a command to the memory system to load an item from a memory address, the memory system can fail to provide, to the processor within the time duration, the item from the memory address currently being hosted in a first component. In response, the memory controller can send a signal to abort the command; and the memory system can select a second component having a memory access latency shorter than the first component, and change the hosting of the memory address from in the first component to in the second component.