APPLICATION SPECIFIC MEMORY CONSUMPTION AND ANALYSIS

• US 20110154236A1
• Filed: 12/18/2009
• Published: 06/23/2011
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP SE
• Inventors: Buster-Zoeller, Ariane, Jolfaei, Masoud Aghadavoodi, Stoeck, Christoph, Stork, Christian, Vielsack, Doris, Kobler, Sven
• Granted Patent: US 8,843,526 B2
• Time in Patent Office: Days
• US Class Current: 715/771
• CPC Class Codes: G06F 11/323 Visualisation of programs or trace data
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 11/3604 Software analysis for verifying properties of programs byte-code verification G06F9/44589
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: G06F 3/048 Interaction techniques based on graphical user interfaces [GUI]

Abstract

Methods and systems are described that involve determining the memory consumption of a specific application. The memory analysis identifies the dynamic memory objects controlled by a particular application and the memory objects controlled by the framework running that application. A structured view of the memory objects of the framework with respect to the individual framework architecture is presented in combination with the application specific memory object graph. A resulting display, in the form of a dominator tree, allows detecting dependencies of the application to the framework and shows which part of the framework is responsible for keeping alive which part of the application. Moreover, the resulting structure shows memory consumption of a single element of the application including bound memory and object memory. Further, a user can identify the references and the dependencies among the memory objects.

Claims

1. A computer-readable storage medium tangibly storing computer-readable instructions thereon, which when executed by the computer, cause the computer to perform operations comprising:

creating a set of new nodes representing a semantic tree structure as part of a memory object graph, wherein the semantic tree structure represents a hierarchical organization of elements of an application framework;

identifying a subset of memory objects from a plurality of memory objects contained in the memory object graph;

suspending an edge between a first memory object in the identified subset of memory objects and a second memory object in the memory object graph;

assigning the identified subset of memory objects to the set of new nodes in the semantic tree structure; and

generating a semantic graph that includes the semantic tree structure with the assigned subset of memory objects from the memory object graph.

2. The computer-readable storage medium of claim 1, wherein the operations further comprise transforming the semantic graph into a dominator tree.

3. The computer-readable storage medium of claim 2, wherein the operations further comprise displaying the dominator tree in a user interface element.

4. The computer-readable storage medium of claim 3, wherein displaying the dominator tree comprises:

displaying memory consumption for a single element of the application framework;

displaying which memory objects from the plurality of memory objects are used by an application; and

displaying which memory objects from the plurality of memory objects are used by the application framework running the application.

5. The computer-readable storage medium of claim 1, wherein transforming the semantic graph further comprises designating a node of the semantic graph as a root node in the dominator tree.

6. The computer-readable storage medium of claim 4, wherein the operations further comprise identifying if a memory object is linked to another memory object.

7. The computer-readable storage medium of claim 4, wherein the operations further comprise:

identifying bound memory of a memory object; and

identifying object memory of the memory object.

8. A computer implemented method comprising:

creating a set of new nodes representing a semantic tree structure to a memory object graph, wherein the semantic tree structure represents a hierarchical organization of elements of an application framework;

identifying a subset of memory objects from a plurality of memory objects contained in the memory object graph;

suspending an edge between a first memory object in the identified subset of memory objects and a second memory object in the memory object graph;

assigning the identified subset of memory objects to the set of new nodes in the semantic tree structure; and

generating a semantic graph that includes the semantic tree structure with the assigned subset of memory objects from the memory object graph.

9. The method of claim 8, further comprising transforming the semantic graph into a dominator tree.

10. The method of claim 9, further comprising displaying the dominator tree in a user interface element.

11. The method of claim 10, wherein displaying the dominator tree comprises:

displaying memory consumption for a single element of the application framework;

displaying which memory objects from the plurality of memory objects are used by an application; and

displaying which memory objects from the plurality of memory objects are used by the application framework running the application.

12. The method of claim 8, wherein transforming the semantic graph further comprises designating a node of the semantic graph as a root node in the dominator tree.

13. The method of claim 11, further comprising identifying if a memory object is linked to another memory object.

14. The method of claim 11, further comprising:

identifying bound memory of a memory object; and

identifying object memory of the memory object.

15. A computing system comprising:

an application module, the application module including a set of elements, wherein the elements are organized in a semantic tree representing a hierarchical structure;

a memory object graph stored in a memory unit, wherein the memory object graph is expanded by adding a set of new nodes corresponding to the semantic tree;

a framework executing the application, wherein the framework identifies a group of memory objects in the memory object graph and assigns the identified group of memory objects to the set of new nodes, wherein as a result a semantic graph is created from the semantic tree and the assigned group of memory objects; and

a display unit that displays the semantic graph as a dominator tree structure and provides memory consumption information.

16. The system of claim 15, further comprising a memory analysis tool that transforms the semantic graph into the dominator tree structure.

17. The system of claim 15, wherein the framework suspends an edge between a first memory object in the identified group of memory objects and a second memory object in the memory object graph.

18. The system of claim 15, wherein the memory consumption information includes memory consumption of a single element of the application.

19. The system of claim 15, wherein the display unit shows which memory objects from the memory object graph are used by the application and which memory objects are used by the framework.

20. The system of claim 15, wherein a node of the semantic graph is displayed as a root node in the dominator tree.