SLEEP WAKE EVENT LOGGING

• US 20100312946A1
• Filed: 06/05/2009
• Published: 12/09/2010
• Est. Priority Date: 06/05/2009
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Liu, Joe, Barbero, Jonathan, Reece, Dean, Bold, Ethan
• Granted Patent: US 8,635,468 B2
• Time in Patent Office: Days
• US Class Current: 711/102
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3275 Power saving in memory, e.g. RAM, cache
• CPC Class Codes: G06F 11/0766 Error or fault reporting or storing

Abstract

A machine implemented method includes creating a universally unique identifier, detecting a trigger of a sleep event, and associating the universally unique identifier with the sleep event. The method monitors sub-system events that occur after a sleep event has been triggered and stores data in non-volatile non-disk storage (e.g., non-boot storage) identifying an event stage corresponding to the sub-system event that is occurring. The method determines whether a wake event has completed and logs each of the sub-system events using the universally unique identifier until a wake event has completed.

Claims

1. A computer-implemented method comprising:

detecting a trigger of a sleep event;

associating an identifier with the sleep event;

monitoring a plurality of system events occurring after detection of the trigger;

determining whether a wake event completed; and

logging each of the plurality of system events until a completion of a wake event is detected, wherein each system event is logged using the identifier.

2. The method of claim 1, further comprising:

creating a new identifier upon determining a wake event completed.

3. The method of claim 1, further comprising:

monitoring a plurality of system event stages occurring after trigger is detected; and

storing data in non-volatile non-disk storage identifying which of the plurality of system event stages is occurring.

4. The method of claim 1, wherein logging each of the plurality of system events comprises:

storing the identifier to non-volatile storage;

each of the plurality of system events;

generating a message;

obtaining the identifier from the non-volatile storage;

attaching the identifier to the message; and

logging the message with the identifier.

5. The method of claim 4, wherein logging the message comprises storing the message to non-volatile storage.

6. The method of claim 1, wherein the plurality of system events comprises events associated with a graphic, a network, a display, a password, a window, device drivers, and power management.

7. A computer-implemented method comprising:

detecting a trigger of a sleep event;

monitoring a plurality of system event stages occurring after the trigger is detected;

determining whether a wake event completed; and

writing data indentifying a system event stage that is occurring to non-volatile non-disk storage until a completion of a wake event is detected.

8. The method of claim 7, wherein the non-volatile non-disk storage is a CMOS device.

9. The method of claim 7, wherein writing data identifying a system event stage that is occurring comprises:

writing a numeric code identifying a current system event stage to non-volatile non-disk storage;

determining a next system event stage is occurring; and

replacing the numeric code stored in the non-volatile non-disk storage with a numeric code identifying the next system event stage that is occurring.

10. A system comprising:

a non-volatile storage to store an identifier and a plurality of messages, wherein each message is associated with one of a plurality of system events; and

a processor coupled to the non-volatile storage to detect a trigger of a sleep event, associate the identifier with the sleep event, monitor a plurality of system events occurring after the detection of the trigger, determine whether a wake event completed, and log each of the plurality of system events occurring using the identifier associated with the sleep event until a completion of a wake event is detected.

11. The system of claim 10, further comprising:

a non-volatile non-disk storage to store data identifying one of a plurality of system event stages; and

the processor coupled to the non-volatile non-disk storage to monitor the plurality of system event stages and to identify each of the plurality of system event stages.

12. A machine-readable storage medium storing instructions which when executed by a data processing system cause the data processing system to perform a method of processing data, the method comprising:

detecting a trigger of a sleep event;

associating an identifier with the sleep event;

monitoring a plurality of system events occurring after detection of the trigger;

determining whether a wake event completed; and

logging each of the plurality of system events until a completion of a wake event is detected, wherein each system event is logged using the identifier.

13. The machine-readable storage medium of claim 12, further comprising:

creating a new identifier upon determining a wake event completed.

14. The machine-readable storage medium of claim 12, further comprising:

monitoring a plurality of system event stages occurring after trigger is detected; and

storing data in non-volatile non-disk storage identifying which of the plurality of system event stages is occurring.

15. The machine-readable storage medium of claim 12, wherein logging each of the plurality of system events comprises:

storing the identifier to non-volatile storage;

each of the plurality of system events;

generating a message;

obtaining the identifier from the non-volatile storage;

attaching the identifier to the message; and

logging the message with the identifier.

16. The machine-readable storage medium of claim 15, wherein logging the message comprises storing the message to non-volatile storage.

17. The machine-readable storage medium of claim 12, wherein the plurality of system events comprises events associated with a graphic, a network, a display, a password, a window, device drivers, and power management.

18. A machine-readable storage medium storing instructions which when executed by a data processing system cause the data processing system to perform a method of processing data, the method comprising:

detecting a trigger of a sleep event;

monitoring a plurality of system event stages occurring after the trigger is detected;

determining whether a wake event completed; and

writing data identifying a system event stage that is occurring to non-volatile non-disk storage until a completion of a wake event is detected.

19. The machine-readable storage medium of claim 18, wherein the non-volatile non-disk storage is a CMOS device, which is not a boot volume.

20. The machine-readable storage medium of claim 18, wherein writing data identifying a system event stage that is occurring comprises:

writing a numeric code identifying a current system event stage to non-volatile non-disk storage;

determining a next system event stage is occurring; and

replacing the numeric code stored in the non-volatile non-disk storage with a numeric code identifying the next system event stage that is occurring.