US 2025/0053308 A1 · DIRTY BLOCK MAP TRACKER FOR PRIMARY-SECONDARY MEMORY DEVICES IN DISAGGREGATED MEMORY SYSTEMS

Abstract

Techniques for computer memory synchronization are disclosed. These techniques include triggering synchronization between a first memory controller and a second memory controller, wherein the first memory controller is associated with a first memory device and a first computer processor, and wherein the second memory controller is associated with a second memory device and a second computer processor. The techniques further include transmitting a dirty block map, based on the triggering, from the first memory controller to the second memory controller, wherein the dirty block map identifies one or more dirty memory blocks, from among a plurality of memory blocks, associated with the first memory controller. The techniques further include copying the one or more dirty memory blocks from the first memory device to the second memory device based on the dirty block map.

Claims20

Dependent claims

A method comprising:

triggering synchronization between a first memory controller and a second memory controller,
wherein the first memory controller is associated with a first memory device and a first computer processor, and
wherein the second memory controller is associated with a second memory device and a second computer processor;
based on the triggering, transmitting a dirty block map from the first memory controller to the second memory controller, wherein the dirty block map identifies one or more dirty memory blocks, from among a plurality of memory blocks, associated with the first memory controller;
and
copying the one or more dirty memory blocks from the first memory device to the second memory device based on the dirty block map.

3 more elements

A system, comprising:

a first memory controller associated with a first memory device and a first computer processor;
a second memory controller associated with a second memory device and a second computer processor;
and
a memory having instructions stored thereon which, when executed by one or more of the first memory controller, the first computer processor, the second memory controller, or the second computer processor, performs operations comprising:
triggering synchronization between the first memory controller and the second memory controller;
based on the triggering, transmitting a dirty block map from the first memory controller to the second memory controller, wherein the dirty block map identifies one or more dirty memory blocks, from among a plurality of memory blocks, associated with the first memory controller;
and
copying the one or more dirty memory blocks from the first memory device to the second memory device based on the dirty block map.

5 more elements

A computer program product comprising:

a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code executable by one or more computer processors to perform operations, comprising:
triggering synchronization between a first memory controller and a second memory controller,
wherein the first memory controller is associated with a first memory device and a first computer processor, and
wherein the second memory controller is associated with a second memory device and a second computer processor;
based on the triggering, transmitting a dirty block map from the first memory controller to the second memory controller, wherein the dirty block map identifies one or more dirty memory blocks, from among a plurality of memory blocks, associated with the first memory controller;
and
copying the one or more dirty memory blocks from the first memory device to the second memory device based on the dirty block map.

4 more elements

Dependencies are inferred from the claim text.

Dirty block map tracker for primary-secondary memory devices in disaggregated memory systems

Life of this patent

Dirty block map tracker for primary-secondary memory devices in disaggregated memory systems

Life of this patent

Abstract

Claims20