Adapting in-memory database in hybrid memory systems and operating system interface

A non-transitory computer-readable storage medium coupled to one or more processors and having instructions stored thereon which, when executed by the one or more processors, cause the one or more processors to perform operations comprising:

• determining a first cost and a second cost associated with a virtual memory page accessed during execution of an application, the first cost being associated with a first memory type, and the second cost being associated with a second memory type in a hybrid memory system;
• comparing the first cost and the second cost to provide a comparison result;
• determining a current location of the virtual memory page, the current location comprising one of the first memory type and the second memory type;
• and
• selectively migrating the virtual memory page from the current location based on the comparison result and the current location.

A system, comprising:

• a computing device;
• and
• a computer-readable storage device coupled to the computing device and having instructions stored thereon which, when executed by the computing device, cause the computing device to perform operations comprising:
• determining a first cost and a second cost associated with a virtual memory page accessed during execution of an application, the first cost being associated with a first memory type, and the second cost being associated with a second memory type in a hybrid memory system;
• comparing the first cost and the second cost to provide a comparison result;
• determining a current location of the virtual memory page, the current location comprising one of the first memory type and the second memory type;
• and
• selectively migrating the virtual memory page from the current location based on the comparison result and the current location.