Resource allocation management

• US 20060026598A1
• Filed: 07/29/2004
• Published: 02/02/2006
• Est. Priority Date: 07/29/2004
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Irish, John D., Handlogten, Glen H.
• Granted Patent: US 8,490,102 B2
• Time in Patent Office: Days
• US Class Current: 718/104
• CPC Class Codes: G06F 9/5011 the resources being hardware resources other than CPUs, Servers and Terminals

Abstract

In a first aspect, a first method is provided for managing system resource allocation. The first method includes the steps of (1) receiving a first command that requires a system resource; (2) receiving a first request for the system resource for the first command; (3) receiving a second command that requires the system resource; (4) assigning the system resource to the second command; and (5) receiving a second request for the system resource for the second command. Numerous other aspects are provided.

Claims

1. A method for managing system resource allocation, comprising:

receiving a first command that requires a system resource;

receiving a first request for the system resource for the first command;

receiving a second command that requires the system resource;

assigning the system resource to the second command; and

receiving a second request for the system resource for the second command.

2. The method of claim 1 wherein receiving the second request for the system resource for the second command includes receiving the second request for the system resource for the second command after the system resource is assigned to the second command.

3. The method of claim 1 further comprising assigning the system resource to the first command.

4. The method of claim 1 wherein:

receiving the first request for the system resource for the first command includes receiving a first request for a token corresponding to the system resource for the first command;

assigning the system resource to the second command includes assigning the token corresponding to the system resource to the second command; and

receiving the second request for the system resource for the second command includes receiving a second request for the token corresponding to the system resource for the second command.

5. The method of claim 1 wherein the system resource includes at least one of memory or bus bandwidth.

6. A method for managing system resource allocation, comprising:

receiving a first command that requires a first system resource, wherein the first command is of a first priority;

receiving a first request for the first system resource for the first command;

receiving a second command that requires the first system resource, wherein the second command is of the first priority;

assigning the first system resource to the second command based on the first priority; and

receiving a second request for the first system resource for the second command.

7. The method of claim 6 further comprising receiving a third command that requires at least one of the first system resource or a second system resource, wherein the third command is of a second priority.

8. The method of claim 7 further comprising:

receiving a request for the required system resource for the third command; and

assigning the required system resource to the third command based on the second priority.

9. The method of claim 6 wherein receiving the second request for the first system resource for the second command includes receiving the second request for the first system resource for the second command after the first system resource is assigned to the second command.

10. The method of claim 6 further comprising assigning the first system resource to the first command.

11. The method of claim 6 wherein:

receiving the first request for the first system resource for the first command includes receiving a first request for a token corresponding to the first system resource for the first command;

assigning the first system resource to the second command includes assigning the token corresponding to the first system resource to the second command; and

receiving the second request for the first system resource for the second command includes receiving the second request for the token corresponding to the first system resource for the second command.

12. The method of claim 6 wherein the first system resource includes at least one of memory or bus bandwidth.

13. A method for managing system resource allocation, comprising:

receiving a first command that requires a first one of a plurality of low-demand system resources and a second system resource, wherein the demand for the second system resource is high;

assigning the first one of the plurality of low-demand system resources to the first command;

after assigning the first one of the plurality of low-demand system resources to the first command, receiving a request for the second system resource for the first command;

receiving a second command that requires a second one of the plurality of low-demand system resources and the second system resource;

assigning the second one of the plurality of low-demand system resources to the second command;

after assigning the second one of the plurality of low-demand system resources to the second command, assigning the second system resource to the second command; and

receiving a second request for the second system resource for the second command.

14. The method of claim 13 wherein receiving the second request for the second system resource for the second command includes receiving the second request for the second system resource for the second command after the second system resource is assigned to the second command.

15. The method of claim 13 further comprising assigning the second system resource to the first command.

16. The method of claim 13 wherein:

assigning the first one of the plurality of low-demand system resources to the first command includes assigning a token corresponding to the first one of the plurality of low-demand system resources to the first command;

receiving a request for the second system resource for the first command includes receiving a request for a token corresponding to the second system resource for the first command;

assigning the second one of the plurality of low-demand system resources to the second command includes assigning a token corresponding to the second one of the plurality of low-demand system resources to the second command; and

assigning the second system resource to the second command includes assigning a token corresponding to the second system resource to the second command.

17. The method of claim 13 wherein:

the plurality of low-demand system resources includes memory; and

the second system resource includes bus bandwidth.

18. A method for managing system resource allocation, comprising:

receiving a command that requires a system resource;

receiving a request for a token corresponding to the system resource for the command; and

assigning the token to the command, thereby assigning the system resource to the command.

19. An apparatus for managing system resource allocation, comprising:

a plurality of logic circuits adapted to;

receive a first command that requires a system resource;

receive a first request for the system resource for the first command;

receive a second command that requires the system resource;

assign the system resource to the second command; and

receive a second request for the system resource for the second command.

20. The apparatus of claim 19 wherein the plurality of logic circuits are further adapted to:

receive a first request for a token corresponding to the system resource for the first command;

assign the token corresponding to the system resource to the second command; and

receive a second request for the token corresponding to the system resource for the second command.

21. The apparatus of claim 19 wherein the plurality of logic circuits includes an input/output controller (IOC) adapted to:

receive a first command that requires a system resource; and

receive a second command that requires the system resource.

22. The apparatus of claim 19 wherein the plurality of logic circuits includes a token manager adapted to:

receive a first request for the system resource for the first command; and

receive a second request for the system resource for the second command.

23. The apparatus of claim 22 wherein the token manager is further adapted to receive the second request for the system resource for the second command after the system resource is assigned to the second command.

24. The apparatus of claim 19 wherein the plurality of logic circuits includes a token requester adapted to assign the system resource to the second command.

25. The apparatus of claim 24 wherein the token requester is further adapted to assign the system resource to the first command.

26. An apparatus for managing system resource allocation, comprising:

a plurality of logic circuits adapted to;

receive a first command that requires a first system resource, wherein the first command is of a first priority;

receive a first request for the first system resource for the first command;

receive a second command that requires the first system resource, wherein the second command is of the first priority;

assign the first system resource to the second command based on the first priority; and

receive a second request for the first system resource for the second command.

27. The apparatus of claim 26 wherein the plurality of logic circuits are further adapted to:

receive a first request for a token corresponding to the first system resource for the first command;

assign the token corresponding to the first system resource to the second command; and

receive the second request for the token corresponding to the first system resource for the second command.

28. The apparatus of claim 26 wherein the plurality of logic circuits includes an input/output controller (IOC) adapted to:

receive the first command that requires the first system resource, wherein the first command is of the first priority; and

receive the second command that requires the first system resource, wherein the second command is of the first priority.

29. The apparatus of claim 28 wherein the IOC is further adapted to receive a third command that requires at least one of the first system resource or a second system resource, wherein the third command is of a second priority.

30. The apparatus of claim 29 wherein the plurality of logic circuits are further adapted to:

receive a request for the required system resource for the third command; and

assign the required system resource to the third command based on the second priority.

31. The apparatus of claim 26 wherein the plurality of logic circuits includes a token manager adapted to:

receive the first request for the first system resource for the first command; and

receive the second request for the first system resource for the second command.

32. The apparatus of claim 31 wherein the token manager is further adapted to receive the second request for the first system resource for the second command after the first system resource is assigned to the second command.

33. The apparatus of claim 26 wherein the plurality of logic circuits includes a token requester adapted to assign the first system resource to the second command based on the first priority.

34. The apparatus of claim 33 wherein the token requester is further adapted to assign the first system resource to the first command.

35. An apparatus for managing system resource allocation, comprising:

a plurality of logic circuits adapted to;

receive a first command that requires a first one of a plurality of low-demand system resources and a second system resource, wherein the demand for the second system resource is high;

assign the first one of the plurality of low-demand system resources to the first command;

after assigning the first one of the plurality of low-demand system resources to the first command, receive a request for the second system resource for the first command;

receive a second command that requires a second one of the plurality of low-demand system resources and the second system resource;

assign the second one of the plurality of low-demand system resources to the second command;

after assigning the second one of the plurality of low-demand system resources to the second command, assign the second system resource to the second command; and

receive a second request for the second system resource for the second command.

36. The apparatus of claim 35 wherein the plurality of logic circuits are further adapted to:

assign a token corresponding to the first one of the plurality of low-demand system resources to the first command;

receive a request for a token corresponding to the second system resource for the first command;

assign a token corresponding to the second one of the plurality of low-demand system resources to the second command; and

assign a token corresponding to the second system resource to the second command.

37. The apparatus of claim 35 wherein the plurality of logic circuits includes an input/output controller (IOC) adapted to:

receive the first command that requires a first one of the plurality of low-demand system resources and the second system resource, wherein the demand for the second system resource is high; and

receive the second command that requires a second one of the plurality of low-demand system resources and the second system resource.

38. The apparatus of claim 35 wherein the plurality of logic circuits includes a token manager adapted to:

receive the request for the second system resource for the first command; and

receive the second request for the second system resource for the second command.

39. The apparatus of claim 38 wherein the token manager is further adapted to receive the second request for the second system resource for the second command after the second system resource is assigned to the second command.

40. The apparatus of claim 35 wherein the plurality of logic circuits includes a token requester adapted to:

assign the first one of the plurality of low-demand system resources to the first command;

assign the second one of the plurality of low-demand system resources to the second command; and

after assigning the second one of the plurality of low-demand system resources to the second command, assign the second system resource to the second command.

41. The apparatus of claim 40 wherein the token requester is further adapted to assign the second system resource to the first command.

42. The apparatus of claim 35 wherein:

the plurality of low-demand system resources includes memory; and

the second system resource includes bus bandwidth.

43. An apparatus for managing system resource allocation, comprising:

a plurality of logic circuits adapted to;

receive a command that requires a system resource;

receive a request for a token corresponding to the system resource for the command; and

assign the token to the command, thereby assigning the system resource to the command.

44. The apparatus of claim 43 wherein the plurality of logic circuits includes an input/output controller (IOC) adapted to receive the command that requires a system resource.

45. The apparatus of claim 43 wherein the plurality of logic circuits includes a token manager adapted to receive the request for the token corresponding to the system resource for the command.

46. The apparatus of claim 43 wherein the plurality of logic circuits includes a token requester adapted to assign the token to the command, thereby assigning the system resource to the command.