Testing the sharing of stored computer information

• US 5,951,697 A
• Filed: 05/29/1997
• Issued: 09/14/1999
• Est. Priority Date: 05/29/1997
• Status: Expired due to Term

• Current Assignee: Advanced Micro Devices, Inc.
• Original Assignee: Advanced Micro Devices, Inc.
• Inventors: Gross, Danny B., Toomey, Gene R., O'Donnell, Michael D.
• Primary Examiner(s): Palys, Joseph E.
• Assistant Examiner(s): NGUYEN, NGUYEN X
• Application Number:
  US08/866,729
• Time in Patent Office: 838 Days
• Field of Search: 395/200, 395/600, 395/884, 714/37, 711/163, 709/220
• US Class Current: 714/37
• CPC Class Codes: G06F 11/2242 in multi-processor systems, e.g. one processor becoming the test master G06F11/2736 takes precedence
• CPC Class Codes: G06F 11/302 where the computing system component is a software system
• CPC Class Codes: G06F 11/3055 Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available error or fault processing without redundancy G06F11/0703; error detection or correction by redundancy in data representation G06F11/08; error detection or correction by redundancy in operation G06F11/14; error detection or correction by redundancy in hardware G06F11/16
• CPC Class Codes: G06F 11/3688 for test execution, e.g. scheduling of test suites

Abstract

An apparatus for testing the sharing of stored information including a computer-readable storage medium and an information sharing protocol test harness module stored on the computer-readable storage medium. The information sharing protocol test harness module executes an information sharing protocol test case on a computer system responsive to a test initiation input. The information sharing protocol test case tests the locking of storage locations to prevent data corruption responsive to being executed.

Claims

1. A method of testing the sharing of stored information by a plurality of computer system applications, the method comprising:

requesting a first lock on a block of stored information by a first test application so that the first test application can access the block of stored information without the block of stored information being changed by a second test application;

releasing the first lock on the block of stored information by the first test application if the first lock on the block of stored information is granted;

requesting a second lock on the block of stored information by the first test application after releasing the first lock;

releasing the second lock on the block of stored information by the first test application after requesting the second lock; and

generating status information, the status information including information regarding the requesting of the first lock and the releasing of the first lock and regarding the requesting of the second lock and the releasing of the second lock on the block of stored information.

2. The method of claim 1 further comprising:

requesting a third lock on the block of stored information by the second test application;

releasing the third lock on the block of stored information by the second test application after requesting the third lock;

requesting a fourth lock on the file by the second test application after requesting the third lock; and

releasing the fourth lock on the file by the second test application after requesting the fourth lock;

wherein the status information further includes information regarding the requesting of the third and fourth locks and the releasing of the third and fourth locks on the block of stored information.

3. The method of claim 2 wherein the status information indicates whether one of the first and second locks are active at the same time as one of the third and fourth locks.

4. The method of claim 2 wherein the first test application initiates operation on a first computer system and the second test application initiates operation on a second computer system.

5. The method of claim 4 wherein the block of stored information is stored on a storage device coupled to a third computer system.

6. The method of claim 4 further comprising determining the effect of the requesting and the releasing by the first and second test applications on the first and second computer systems after releasing the fourth lock on the file by the second test application, wherein the status information includes information regarding the effect of the requesting and the releasing by the first and second test applications on the first and second computer systems.

7. The method of claim 4, wherein

the block of stored information is stored on at least one of a plurality of computer systems, the plurality of computer systems including the first and second computer systems;

and

the method includes substantially increasing the I/O load of the at least one computer system, the status information indicating the effect on the requesting and releasing of the first, second third and fourth locks on the block of stored information due to the increased I/O load.

8. The method of claim 4, wherein

the first computer system is of a first hardware type;

and

the second computer system is of a second hardware type.

9. A method of testing the sharing of stored information by a plurality of computer system applications, the method comprising:

requesting a first lock on a block of stored information by a first test application so that the first test application can access the block of stored information without the block of stored information being changed by a second test application;

releasing the first lock on the block of stored information by the first test application if the first lock on the block of stored information is granted;

generating status information, the status information including information regarding the requesting of the first lock and the releasing of the first lock on the block of stored information; and

determining if the first test application obtained the first lock on the block of stored information, the status information indicating whether the first test application obtained the first lock on the block of stored information.

10. The method of claim 9 further comprising:

requesting a second lock on the block of stored information by the first test application after releasing the first lock;

releasing the second lock on the block of stored information by the first test application after requesting the second lock and before generating the status information; and

determining if the first test application obtained the second lock on the block of stored information;

wherein the status information further includes information regarding the requesting of the second lock and the releasing of the second lock, and the status information indicates whether the second test application obtained the second lock on the block of stored information.

11. The method of claim 10 further comprising:

requesting a third lock on the block of stored information by the second test application;

releasing the third lock on the block of stored information by the second test application after requesting the third lock;

requesting a fourth lock on the file by the second test application after requesting the third lock; and

releasing the fourth lock on the file by the second test application after requesting the fourth lock;

wherein the status information further includes information regarding the requesting of the third and fourth locks and the releasing of the third and fourth locks on the block of stored information.

12. The method of claim 11 wherein the status information indicates whether one of the first and second locks are active at the same time as one of the third and fourth locks.

13. The method of claim 11 wherein the first test application initiates operation on a first computer system and the second test application initiates operation on a second computer system.

14. The method of claim 13 wherein the block of stored information is stored on a storage device coupled to a third computer system.

15. The method of claim 13 further comprising determining the effect of the requesting and the releasing by the first and second test applications on the first and second computer systems after releasing the fourth lock on the file by the second test application, wherein the status information includes information regarding the effect of the requesting and the releasing by the first and second test applications on the first and second computer systems.

16. The method of claim 13, wherein

the block of stored information is stored on at least one of a plurality of computer systems, the plurality of computer systems including the first and second computer systems;

and

the method includes substantially increasing the I/O load of the at least one computer system, the status information indicating the effect on the requesting and releasing of the first, second third and fourth locks on the block of stored information due to the increased I/O load.

17. The method of claim 13, wherein

the first computer system is of a first hardware type;

and

the second computer system is of a second hardware type.

18. A method of testing the sharing of stored information by a plurality of computer system applications, the method comprising:

requesting a first lock on a block of stored information by a first test application so that the first test application can access the block of stored information without the block of stored information being changed by a second test application;

changing the block of stored information by the first test application after requesting the first lock on the block of stored information by the first test applications;

releasing the first lock on the block of stored information by the first test application if the first lock on the block of stored information is granted; and

generating status information, the status information including information regarding the requesting of the first lock and the releasing of the first lock on the block of stored information.

19. The method of claim 18 further comprising:

requesting a second lock on the block of stored information by the second test application after requesting the first lock on the block of stored information by the first test application and before releasing the first lock on the block of stored information by the first test application

changing the block of stored information by the second test application after requesting the second lock on the block of stored information.

20. The method of claim 19 wherein the changing the block of stored information by the first and second test applications comprises incrementing a value stored in the block of stored information.

21. The method of claim 19 wherein the changing the block of stored information by the first and second test applications comprises changing a semaphore stored in the block of stored information.

22. A method of testing the sharing of stored information by a plurality of computer system applications, the method comprising:

requesting a first lock on a block of stored information by a first test application so that the first test application can access the block of stored information without the block of stored information being changed by a second test application;

releasing the first lock on the block of stored information by the first test application if the first lock on the block of stored information is granted;

generating status information, the status information including information regarding the requesting of the first lock and the releasing of the first lock on the block of stored information;

wherein the requesting and the releasing are performed by a production software module, the software module including at least a portion of actual production environment software.

23. An apparatus for testing the sharing of stored information, the apparatus comprising:

a computer-readable storage medium; and

an information sharing protocol test harness module stored on the computer-readable storage medium, the information sharing protocol test harness module executing at least one information sharing protocol test case on at least one computer system responsive to a test initiation input, the information sharing protocol test case for testing the locking of storage locations to prevent data corruption;

wherein the information sharing protocol test harness module comprises a lock test module stored on the computer-readable storage medium, the lock test module for testing a remote procedure call lock daemon, the lock test module comprising;

a lock initiation module for initiating a remote procedure call lock upon a block of stored information responsive to a test initiation event;

a lock release module for releasing the lock upon the block of stored information after the lock initiation module initiates the remote procedure call lock; and

a monitor module for monitoring the status of the remote procedure call lock daemon for errors.

24. The apparatus of claim 23, wherein the information sharing protocol test harness module further comprises a schedule module for executing the modules within the lock test module in a determined order to perform a determined lock test on a computer system responsive to a test initiation event.

25. The apparatus of claim 24, wherein the lock test module further comprises an information modification module for modifying the block of stored information after the lock initiation module initiates the remote procedure call lock upon the block of stored information and before the lock release module releases the lock upon the block of stored information, the monitor module monitoring the block of stored information for data corruption responsive to the information modification module modifying the block of stored information.

26. The apparatus of claim 24, wherein the lock test module further comprises an information copy module for copying to and from a memory location of the block of stored information after the lock initiation module initiates the remote procedure call lock upon the block of stored information and before the lock release module releases the lock upon the block of stored information.

27. The apparatus of claim 24, wherein the lock test module further comprises a test setup module for preparing the computer system for lock testing by creating the block of stored information in a storage device of the computer system before the schedule module executes the modules within the lock test module.

28. The apparatus of claim 24, wherein the lock test module further comprises a test cleanup module for returning the computer system to a pretest state responsive to completion of all lock tests scheduled by the schedule module.

29. The apparatus of claim 24, wherein the schedule module comprises a synchronization module for executing the lock test module on each of a plurality of computer systems at substantially the same time.

30. An apparatus for testing the sharing of stored information, the apparatus comprising:

a computer-readable storage medium; and

an information sharing protocol test harness module stored on the computer-readable storage medium, the information sharing protocol test harness module executing at least one information sharing protocol test case on at least one computer system responsive to a test initiation input, the information sharing protocol test case for testing the locking of storage locations to prevent data corruption;

wherein the information sharing protocol test harness module comprises means for testing a remote procedure call lock daemon on a computer system operating under control of a UNIX type operating system.

31. The apparatus of claim 30, wherein the information sharing protocol test harness module further comprises a lock test module stored on the computer-readable storage medium, the lock test module for testing a remote procedure call lock daemon, the lock test module comprising:

a lock initiation module for initiating a remote procedure call lock upon a block of stored information responsive to a test initiation event;

a lock release module for releasing the lock upon the block of stored information after the lock initiation module initiates the remote procedure call lock; and

a monitor module for monitoring the status of the remote procedure call lock daemon for errors.

32. The apparatus of claim 31, wherein the information sharing protocol test harness module further comprises a schedule module for executing the modules within the lock test module in a determined order to perform a determined lock test on a computer system responsive to a test initiation event.

33. The apparatus of claim 32, wherein the lock test module further comprises an information modification module for modifying the block of stored information after the lock initiation module initiates the remote procedure call lock upon the block of stored information and before the lock release module releases the lock upon the block of stored information, the monitor module monitoring the block of stored information for data corruption responsive to the information modification module modifying the block of stored information.

34. The apparatus of claim 32, wherein the lock test module further comprises an information copy module for copying to and from a memory location of the block of stored information after the lock initiation module initiates the remote procedure call lock upon the block of stored information and before the lock release module releases the lock upon the block of stored information.

35. The apparatus of claim 32, wherein the lock test module further comprises a test setup module for preparing the computer system for lock testing by creating the block of stored information in a storage device of the computer system before the schedule module executes the modules within the lock test module.

36. The apparatus of claim 32, wherein the lock test module further comprises a test cleanup module for returning the computer system to a pre-test state responsive to completion of all lock tests scheduled by the schedule module.

37. The apparatus of claim 32, wherein the schedule module comprises a synchronization module for executing the lock test module on each of a plurality of computer systems at substantially the same time.