Memory pool management method for sharing memory pool among different computing units and related machine readable medium and memory pool management apparatus

Patent metadata

Field	Value
Publication number	US-2016188453-A1
Application number	US-201514902596-A
Country	US
Kind code	A1
Filing date	May 28, 2015
Priority date	May 28, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A memory pool management method includes: allocating a plurality of memory pools in a memory device according to information about a plurality of computing units, wherein the computing units are independently executed on a same processor; and assigning one of the memory pools to one of the computing units, wherein at least one of the memory pools is shared among different computing units of the computing units.

First claim

1 . A memory pool management method comprising:
allocating a plurality of memory pools in a memory device according to information about a plurality of computing units, wherein the computing units are independently executed on a same processor; and assigning one of the memory pools to one of the computing units, wherein at least one of the memory pools is shared among different computing units of the computing units.

2 . The memory pool management method of claim 1 , wherein a number of the memory pools is not smaller than a number of the computing units.

3 . The memory pool management method of claim 2 , wherein assigning one of the memory pools to one of the computing units comprises:
at a start of a computing unit of the computing units, searching the memory pools for an ever-used memory pool; and when the ever-used memory pool is found in the memory pools, assigning the ever-used memory pool to the computing unit.

4 . The memory pool management method of claim 3 , wherein the ever-used memory pool is a most frequently used memory pool among the memory pools.

5 . The memory pool management method of claim 3 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the ever-used memory pool is not found in the memory pools, assigning a not-yet-used memory pool in the memory pools to the computing unit.

6 . The memory pool management method of claim 1 , wherein a number of the memory pools is smaller than a number of the computing units.

7 . The memory pool management method of claim 6 , wherein assigning one of the memory pools to one of the computing units comprises:
at a start of a computing unit of the computing units, searching the memory pools for an ever-used memory pool; and when the ever-used memory pool is found in the memory pools, assigning the ever-used memory pool to the computing unit.

8 . The memory pool management method of claim 7 , wherein the ever-used memory pool is a most frequently used memory pool among the memory pools.

9 . The memory pool management method of claim 7 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the ever-used memory pool is not found in the memory pools, searching the memory pools for a not-yet-used memory pool; and when the not-yet-used memory pool is found in the memory pools, assigning the not-yet-used memory pool to the computing unit.

10 . The memory pool management method of claim 7 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the not-yet-used memory pool is not found in the memory pools, waiting for a released memory pool in the memory pools; and when the released memory pool is available, assigning the released memory pool to the computing unit.

11 . A non-transitory machine readable medium having a program code stored therein, wherein when executed by a processor, the program code instructs the processor to perform following steps:
allocating a plurality of memory pools in a memory device according to information about a plurality of computing units, wherein the computing units are independently executed on the processor; and assigning one of the memory pools to one of the computing units, wherein at least one of the memory pools is shared among different computing units of the computing units.

12 . The non-transitory machine readable medium of claim 11 , wherein a number of the memory pools is not smaller than a number of the computing units.

13 . The non-transitory machine readable medium of claim 12 , wherein assigning one of the memory pools to one of the computing units comprises:
at a start of a computing unit of the computing units, searching the memory pools for an ever-used memory pool; and when the ever-used memory pool is found in the memory pools, assigning the ever-used memory pool to the computing unit.

14 . The non-transitory machine readable medium of claim 13 , wherein the ever-used memory pool is a most frequently used memory pool among the memory pools.

15 . The non-transitory machine readable medium of claim 13 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the ever-used memory pool is not found in the memory pools, assigning a not-yet-used memory pool in the memory pools to the computing unit.

16 . The non-transitory machine readable medium of claim 11 , wherein a number of the memory pools is smaller than a number of the computing units.

17 . The non-transitory machine readable medium of claim 16 , wherein assigning one of the memory pools to one of the computing units comprises:
at a start of a computing unit of the computing units, searching the memory pools for an ever-used memory pool; and when the ever-used memory pool is found in the memory pools, assigning the ever-used memory pool to the computing unit.

18 . The non-transitory machine readable medium of claim 17 , wherein the ever-used memory pool is a most frequently used memory pool among the memory pools.

19 . The non-transitory machine readable medium of claim 17 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the ever-used memory pool is not found in the memory pools, searching the memory pools for a not-yet-used memory pool; and when the not-yet-used memory pool is found in the memory pools, assigning the not-yet-used memory pool to the computing unit.

20 . The non-transitory machine readable medium of claim 17 , wherein assigning one of the memory pools to one of the computing units further comprises:
when the not-yet-used memory pool is not found in the memory pools, waiting for a released memory pool in the memory pools; and when the released memory pool is available, assigning the released memory pool to the computing unit.

21 . A memory pool management apparatus comprising:
an allocating circuit, arranged to allocate a plurality of memory pools in a memory device according to information about a plurality of computing units, wherein the computing units are independently executed on a same processor; and a dispatching circuit, arranged to assign one of the memory pools to one of the computing units, wherein at least one of the memory pools is shared among different computing units of the computing units.

22 . The memory pool management apparatus of claim 21 , wherein a number of the memory pools is not smaller than a number of the computing units.

23 . The memory pool management apparatus of claim 22 , wherein at a start of a computing unit of the computing units, the dispatching circuit is arranged to search the memory pools for an ever-used memory pool; and when the ever-used memory pool is found in the memory pools, the dispatching circuit is arranged to assign the ever-used memory pool to the computing unit.

24 . The memory pool management apparatus of claim 23 , wherein the ever-used memory pool is a most frequently used memory pool among the memory pools.

25 . The memory pool management apparatus of claim 23 , wherein when the ever-used memory pool is not found in the memory pools, the dispatching circuit is arranged to assign a not-yet-used memory pool in the memory pools to the computing unit.

26 . The memory pool management apparatus of claim 21 , wherein a number of the memory pools is smaller than a number of the computing units.

Assignees

• Mediatek Inc

Inventors

• Chu Yu-Cheng
• Chang Shen-Kai
• Chen yong-ming
• Ju Chi-Cheng

Classifications

• G06F15/167 Primary

  using a common memory, e.g. mailbox · CPC title

• G06F2212/1044

  Space efficiency improvement · CPC title

• G06F12/023 Primary

  Free address space management · CPC title

• G06F3/0656

  Data buffering arrangements · CPC title

• G06F12/12

  Replacement control · CPC title