Reducing power consumption of volatile memory via use of non-volatile memory

An apparatus comprising:

• a volatile memory device having a first size;
• a non-volatile memory device having a second size that is greater than or equal to the first size;
• a processor configured to initiate a transition from an operating mode to a sleep mode and to disable a portion of the volatile memory device during the sleep mode;
• and
• a data transfer module configured to copy data from the volatile memory device to the non-volatile memory device in response to the initiating and prior to the disabling of the volatile memory device during the sleep mode.

A computer-readable storage device comprising instructions that, when executed by a processor, cause the processor to:

• initiate a transition from an operating mode to a sleep mode at an electronic device, wherein the electronic device comprises a volatile memory device having a first size and a non-volatile memory device having a second size that is greater than or equal to the first size;
• in response to the initiating, cause copying of data from the volatile memory device to the non-volatile memory device;
• and
• disable a portion of the volatile memory device during the sleep mode.

An apparatus comprising:

• a volatile memory device having a first size;
• a non-volatile memory device having a second size;
• a processor configured to initiate a transition from an operating mode to a sleep mode and to disable a portion of the volatile memory device during the sleep mode;
• and
• means for copying data from the volatile memory device to the non-volatile memory device in response to the initiating and prior to the disabling of the volatile memory device during the sleep mode.

A method comprising:

• determining that a low performance mode (LPM) condition is satisfied at an electronic device, wherein the electronic device includes a volatile memory device that stores a first copy of read-only data and a non-volatile memory device that stores a second copy of the read-only data;
• and
• in response to the LPM condition being satisfied:
• updating a memory mapping of the read-only data from the volatile memory device to the non-volatile memory device;
• disabling a portion of the volatile memory device that stores the first copy of the read-only data;
• and
• directing an access request for the read-only data to the non-volatile memory device instead of to the volatile memory device.

An apparatus comprising:

• a volatile memory device storing a first copy of read-only data;
• a non-volatile memory device storing a second copy of the read-only data;
• and
• a processor configured to, in a low performance mode (LPM):
• update a memory mapping of the read-only data from the volatile memory device to the non-volatile memory device;
• disable a portion of the volatile memory device that stores the first copy of the read-only data;
• and
• direct an access request for the read-only data to the non-volatile memory device instead of to the volatile memory device.

A computer-readable storage device comprising instructions that, when executed by a processor, cause the processor to:

• in response to a low performance mode (LPM) condition being satisfied at an electronic device, the electronic device including a volatile memory device that stores a first copy of read-only data and a non-volatile memory device that stores a second copy of the read-only data:
• update a memory mapping of the read-only data from the volatile memory device to the non-volatile memory device;
• disable a portion of the volatile memory device that stores the first copy of the read-only data;
• and
• direct an access request for the read-only data to the non-volatile memory device instead of to the volatile memory device.

An apparatus comprising:

• a volatile memory device storing a first copy of read-only data;
• a non-volatile memory device storing a second copy of the read-only data;
• means for updating, in response to a low performance mode (LPM) condition being satisfied, a memory mapping of the read-only data from the volatile memory device to the non-volatile memory device;
• means for disabling a portion of the volatile memory device that stores the first copy of the read-only data;
• and
• means for directing an access request for the read-only data to the non-volatile memory device instead of to the volatile memory device.