Memory management technique

• US 20060149915A1
• Filed: 01/05/2005
• Published: 07/06/2006
• Est. Priority Date: 01/05/2005
• Status: Active Grant

• Current Assignee: Chant Sincere Co., Ltd., SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Maly, Gennady
• Granted Patent: US 7,418,568 B2
• Time in Patent Office: Days
• US Class Current: 711/172
• CPC Class Codes: G06F 12/023 Free address space management

Abstract

Methods for allocating memory by a memory manager for an application are provided. The method may include the steps of allocating a first block size for a first amount of data, and allocating a second block size for memory allocated after the first amount of data. In some variations, the second block size is larger than the first block size. Subsequent block sizes may be also be allocated depending on the desired implementation and based on various threshold criteria. Related apparatuses, computer program products and computer systems are also provided.

Claims

1. A method for allocating memory for an application, the method comprising the steps of:

allocating a first block size of the memory to a determined first amount of data; and

allocating a second block size of the memory for memory allocated after the first amount of data.

2. The method of claim 1, wherein the first amount of data is based on a number of objects saved in a memory manager.

3. The method of claim 1, wherein the first amount of data is based on a frequency of memory calls from the application.

4. The method of claim 1, wherein the first amount of data is based on an amount of available main memory.

5. The method of claim 1, wherein the first amount of data is based on an amount of consumed main memory.

6. The method of claim 1, wherein the first amount of data is based on a flag set within a memory manager.

7. The method of claim 6, wherein the flag identifies the number of objects to be processed.

8. The method of claim 6, wherein the flag identifies an amount of memory to be consumed.

9. The method of claim 1, wherein the first block size is predetermined.

10. The method of claim 1, wherein the first and second block sizes are determined during run time.

11. The method of claim 1, further comprising the step of

allocating a third block size for memory allocated after a second amount of data, wherein the third block size is larger than the second block size.

12. The method of claim 1, further comprising the step of generating a memory manager having a flag, the flag defining whether the block size may be changed.

13. The method of claim 11, further comprising the step of generating a memory manager identifying the predetermined number of objects.

14. The method of claim 1, wherein the second block size is based on a factor chosen from the group comprising:

a number of objects saved, a frequency of memory calls from the application, an amount of available main memory, an amount of consumed main memory, a flag set within a memory manager.

15. The method of claim 1, wherein the second block size is at least twice the first block size.

16. An apparatus comprising:

a memory manager coupled to an application and memory having an assignment unit, wherein the assignment unit allocates a first block size for a determined first amount of data, and allocates a second block size for memory allocated after the first amount of data.

17. The apparatus of claim 16, wherein the size of the first amount of data is based on at least one factor chosen from the group comprising:

a number of objects, a frequency of memory calls from the application, an amount of available main memory, an amount of consumed main memory, a flag set within a memory manager.

18. The apparatus of claim 16, wherein the second block size is larger than the first block size.

19. The apparatus of claim 16, wherein the assignment unit allocates a third block size for memory allocated after a second amount of data, wherein the third block size is larger than the second block size.

20. A computer program product for allocating memory by a memory manager for an application, embodied on computer readable-material, that includes executable instructions for causing a computer system to:

allocate a first block size for a determined first amount of memory data; and

allocate a second block size for memory allocated after the first amount of data.