Systems and methods for providing improved latency in a non-uniform memory architecture

A system for allocating memory in a portable computing device having a non-uniform memory architecture, the method comprising:

• means for receiving from a process executing on a first system on chip (SoC) a request for a virtual memory page, the first SoC electrically coupled to a second SoC via an interchip interface, the first SoC electrically coupled to a first local volatile memory device via a first high-performance bus and the second SoC electrically coupled to a second local volatile memory device via a second high-performance bus;
• means for determining whether a number of available physical pages on the first local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• means for determining whether a number of available physical pages on the second local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• and
• means for allocating a first physical address on the first local volatile memory device and a second physical address on the second local volatile memory device to a single virtual page address if the minimum threshold is exceeded by both the number of available physical pages on the first local volatile memory device and the number of available physical pages on the second local volatile memory device.

A computer program embodied in a memory and executable by a processor for allocating memory in a non-uniform memory architecture, the computer program comprising logic configured to:

• receive from a process executing on a first system on chip (SoC) a request for a virtual memory page, the first SoC electrically coupled to a second SoC via an interchip interface, the first SoC electrically coupled to a first local volatile memory device via a first high-performance bus and the second SoC electrically coupled to a second local volatile memory device via a second high-performance bus;
• determining whether a number of available physical pages on the first local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• determining whether a number of available physical pages on the second local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• and
• if the minimum threshold is exceeded by both the number of available physical pages on the first local volatile memory device and the number of available physical pages on the second local volatile memory device, allocating a first physical address on the first local volatile memory device and a second physical address on the second local volatile memory device to a single virtual page address.

A system for allocating memory having a non-uniform memory architecture, the system comprising:

• a first system on chip (SoC) and a second SoC electrically coupled via an interchip interface, the first SoC electrically coupled to a first local volatile memory device via a first high-performance bus and the second SoC electrically coupled to a second local volatile memory device via a second high-performance bus;
• and
• a system memory manager for managing the first and second local volatile memory devices in a non-uniform memory architecture, the system memory manager comprising logic configured to:
• receive from a process executing on the first SoC a request for a virtual memory page;
• determining whether a number of available physical pages on the first local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• determining whether a number of available physical pages on the second local volatile memory device exceeds a minimum threshold for initiating replication of memory data between the first and second local volatile memory devices;
• and
• if the minimum threshold is exceeded by both the number of available physical pages on the first local volatile memory device and the number of available physical pages on the second local volatile memory device, allocating a first physical address on the first local volatile memory device and a second physical address on the second local volatile memory device to a single virtual page address.