Method for the computer-aided determination of an optimization potential of a soft-ware system

• US 8,527,951 B2
• Filed: 03/05/2008
• Issued: 09/03/2013
• Est. Priority Date: 03/20/2007
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Kempter, Bernhard, Mangold, Florian, Pnitsch, Michael
• Primary Examiner(s): WANG, RONGFA PHILIP
• Application Number:
  US12/450,284
• Publication Number:
  US 20100095275A1
• Time in Patent Office: 2,008 Days
• Field of Search: None
• US Class Current: 717/124
• CPC Class Codes: G06F 11/3457 Performance evaluation by simulation
• CPC Class Codes: G06F 2201/865 Monitoring of software

Abstract

A method is disclosed for the computer-aided determination of the optimization potential of a software system including a plurality of modules that can interact with each other at least to some point during execution of the software system. At least one module to be examined is selected from the plurality of modules, in at least one embodiment, and is examined with respect to the effects of an optimization of the at least one module to be examined on the overall consumption of resources of the software system. A respective consumption of resources of one or more modules not to be examined of the plurality of modules is varied according to at least one predetermined criterion, thereby obtaining a modified software system. The overall consumption of resources of the modified software system is determined taking into consideration the variation of the modules not to be examined. The determined overall consumption of resources of the modified software system is then compared to the overall consumption of resources of the unmodified software system.

Claims

1. A computer-aided method for e the determination of software system performance, the software system being stored on a non-transitory computer readable medium and being implemented by a processor, the software system including a plurality of modules, at least some of which are interactable with one another when the software system is executed, the method comprising:

examining at least one module, from the plurality of modules, with respect to effects of an optimization of the at least one module under examination on a total resource consumption of the software system;

varying a respective resource consumption of one or more of the plurality of modules not under examination according to at least one criterion, thereby modifying the software system to obtain a modified software system;

determining a total resource consumption of the modified software system, taking into account the varying of the one or more of the plurality of modules not under examination; and

comparing the determined total resource consumption of the modified software system with the total resource consumption of the software system before the modifying.

2. The method as claimed in claim 1, wherein the variation of the resource consumption is an increase in the resource consumption.

3. The method as claimed in claim 2, wherein, in a case of a non-deterministic software system, the at least one criterion is a respective factor for each of the modules not under examination which is produced by multiplying one or a respective optimization factor by a resource consumption for the relevant module, respectively.

4. The method as claimed in claim 3, wherein the varied resource consumption determined for a module in question is transferred to calling modules of the software system and is taken into account for determining the varied resource consumption of a calling module.

5. The method as claimed in claim 2, wherein the steps according to claim 1 are repeatedly carried out with different variations of the modules not under examination.

6. The method as claimed in claim 1, wherein, in a case of a deterministic software system, the at least one criterion is a factor by which the resource consumption of the modules not under examination is varied.

7. The method as claimed in claim 6, wherein an identical factor is selected for all of the modules not under examination.

8. The method as claimed in claim 6, wherein different factors are selected for the modules not under examination.

9. The method as claimed in claim 1, wherein, in a case of a non-deterministic software system, the at least one criterion is a respective factor for each of the modules not under examination which is produced by multiplying one or a respective optimization factor by a resource consumption for the relevant module, respectively.

10. The method as claimed in claim 9, wherein the varied resource consumption determined for a module in question is transferred to calling modules of the software system and is taken into account for determining the varied resource consumption of a calling module.

11. The method as claimed in claim 10, wherein the resource consumption is runtime.

12. The method as claimed in claim 9, wherein the resource consumption is runtime.

13. The method as claimed in claim 1, wherein measurement results of the modules not to be taken into account are normalized for determining the total resource consumption of the modified software system.

14. The method as claimed in claim 1, wherein the steps according to claim 1 are repeatedly carried out with different variations of the modules not under examination.

15. The method as claimed in claim 2, wherein, in a case of a deterministic software system, the at least one criterion is a factor by which the resource consumption of the modules not under examination is varied.

16. The method as claimed in claim 15, wherein an identical factor is selected for all of the modules not under examination.

17. The method as claimed in claim 15, wherein different factors are selected for the modules not under examination.

18. A computer program product including instructions that are stored on a non-transitory computer readable medium that is loadable into the internal memory of a digital computer, comprising:

software code sections with which the steps according to claim 1 are executable when the computer program product is run on a computer.

19. A non-transitory computer readable medium including program segments for, when executed on a computer device, causing the computer device to implement the method of claim 1.

20. A non-transitory computer readable medium including program segments for, when executed on a computer device, causing the computer device to implement the method of claim 2.