Performance logging framework

• US 8,718,978 B2
• Filed: 02/28/2011
• Issued: 05/06/2014
• Est. Priority Date: 02/28/2011
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Parker, Steven D., Jalbert, Christopher P.
• Primary Examiner(s): Kundu, Sujoy
• Assistant Examiner(s): FORTICH, ALVARO E
• Application Number:
  US13/036,423
• Publication Number:
  US 20120221293A1
• Time in Patent Office: 1,163 Days
• Field of Search: 702/182, 702/186
• US Class Current: 702/182
• CPC Class Codes: G06F 11/3419 by assessing time
• CPC Class Codes: G06F 11/3476 Data logging G06F11/14, G06F11/2205 take precedence
• CPC Class Codes: G06F 2201/86 Event-based monitoring

Abstract

Techniques for logging performance data are described herein. According to one embodiment, in response to a request for logging performance data, where the request includes a data type indicating a type of performance data and an actual performance data value, a non-linear mathematical operation is performed on the performance data value to generate an index value. The performance data represents a performance measurement of a predetermined operation performed by a data processing system. Thereafter, a value of a data field in a performance data store that stores the performance data is updated based on the type of the performance data and the index value. The value of the data field is updated without having to lock the data field for purpose of simultaneously accesses.

Claims

1. A computer-implemented method for logging performance data, the method comprising:

in response to a request for logging performance data, the request including a data type indicating a type of performance data and an actual performance data value, performing a logarithm operation on the performance data value to generate an index value, the type of performance data representing a category of performance in which the actual performance data value belongs, wherein the performance data represents a performance measurement of a predetermined operation performed by a data processing system; and

updating a value of a data field in a performance data store that stores the performance data, wherein a storage location of the data field is determined based on the type of the performance data and the index value, wherein the value of the data field is updated without having to lock the data field for purpose of simultaneous accesses.

2. The method of claim 1, further comprising prior to updating the value of the data field, locating within the performance data store the data field based on the data type and the index value.

3. The method of claim 2, wherein the logarithm operation is a log 2 based operation.

4. The method of claim 1, wherein updating a value of the data field comprises incrementing the value of the data field.

5. The method of claim 1, wherein the request is received via an application programming interface (API) of a performance logging framework from a client that monitors the performance of the predetermined operation.

6. The method of claim 5, wherein the performance measurement comprises a value representing time spent to perform the predetermined operation by the data processing system.

7. A non-transitory computer-readable storage medium having computer instructions stored therein, which when executed by a computer, cause the computer to perform a method for logging performance data, the method comprising:

in response to a request for logging performance data, the request including a data type indicating a type of performance data and an actual performance data value, performing a logarithm operation on the performance data value to generate an index value, the type of performance data representing a category of performance in which the actual performance data value belongs, wherein the performance data represents a performance measurement of a predetermined operation performed by a data processing system; and

updating a value of a data field in a performance data store that stores the performance data, wherein a storage location of the data field is determined based on the type of the performance data and the index value, wherein the value of the data field is updated without having to lock the data field for purpose of simultaneous accesses.

8. The computer-readable storage medium of claim 7, wherein the method further comprises prior to updating the value of the data field, locating within the performance data store the data field based on the data type and the index value.

9. The computer-readable storage medium of claim 8, wherein the logarithm operation is a log 2 based operation.

10. The computer-readable storage medium of claim 7, wherein updating a value of the data field comprises incrementing the value of the data field.

11. The computer-readable storage medium of claim 7, wherein the request is received via an application programming interface (API) of a performance logging framework from a client that monitors the performance of the predetermined operation.

12. The computer-readable storage medium of claim 11, wherein the performance measurement comprises a value representing time spent to perform the predetermined operation by the data processing system.

13. A data processing system, comprising:

a processor; and

a memory coupled to the processor for storing instructions, which when executed from the memory, cause the processor to

in response to a request for logging performance data, the request including a data type indicating a type of performance data and an actual performance data value, perform a logarithm operation on the performance data value to generate an index value, the type of performance data representing a category of performance in which the actual performance data value belongs, wherein the performance data represents a performance measurement of a predetermined operation performed by a data processing system, and

update a value of a data field in a performance data store that stores the performance data, wherein a storage location of the data field is determined based on the type of the performance data and the index value, wherein the value of the data field is updated without having to lock the data field for purpose of simultaneous accesses.

14. The system of claim 13, wherein prior to updating the value of the data field, the data field in the performance data store is located based on the data type and the index value.

15. The system of claim 14, wherein the logarithm operation is a log 2 based operation.

16. The system of claim 13, wherein updating a value of the data field comprises incrementing the value of the data field.

17. The system of claim 13, wherein the request is received via an application programming interface (API) of a performance logging framework from a client that monitors the performance of the predetermined operation.

18. The system of claim 17, wherein the performance measurement comprises a value representing time spent to perform the predetermined operation by the data processing system.