David Cullen Goode

US Patent:

6754734, Jun 22, 2004

Filed:

Dec 18, 2001

Appl. No.:

10/033810

Inventors:

David Harold Goode - San Jose CA
William Earl Malloy - Santa Clara CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1328

US Classification:

710 24, 710 6, 710 5, 710 8, 710 42, 711112, 711113, 714 1

Abstract:

Systems, methods, and computer products that improve the performance of computer-implemented I/O operations for complex applications, such as a database, that are ported to target computer systems that are not tailored to support the high-performance services that may benefit applications. Complex applications, such as a database, often manage I/O access operations by a caching mechanism that is tailored to the needs of the application. When porting an application to a target computer system that does not support certain I/O access features, I/O performance of the application may be limited. The present invention may be implemented by introducing specialized I/O access features that are tailored to enhance I/O access performance for complex applications, such as a database.

US Patent:

6877045, Apr 5, 2005

Filed:

Dec 18, 2001

Appl. No.:

10/033926

Inventors:

David Harold Goode - San Jose CA, US
William Earl Malloy - Santa Clara CA, US

Assignee:

International Business Machines Corporation - NY

International Classification:

G06F003/00

US Classification:

710 6, 710 20, 710 36, 712225, 711114

Abstract:

Systems, methods, and computer products that improve the performance of computer-implemented I/O operations issued by complex applications that are directed to high-performance disk drives, and that may operate in conjunction with the product marketed under the trademark IBM S/390. Such high-performance disk drives may include the IBM Shark that supports the parallel access volumes feature.

US Patent:

6938054, Aug 30, 2005

Filed:

Nov 25, 2002

Appl. No.:

10/305307

Inventors:

David H. Goode - San Jose CA, US
William E. Malloy - Santa Clara CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F007/00

US Classification:

7071041, 707101, 707102

Abstract:

Systems, methods, and computer products that determine how to optimize serialization code that has been ported from other computer systems to the OS/390 UNIX system. General-purpose UNIX systems may not provide sufficient facilities; such as compiler run-time APIs like the Compare and Swap C Run-Time Library API, to accommodate the performance-related features of serialized code in complex applications. When porting a high-performance application from other UNIX platforms to IBM OS/390 UNIX, serialized code performance of the application may be limited. The present invention may be implemented by advantageously determining when substitution of the Compare and Swap C Run-Time Library API calls for pthread_mutex calls will improve the execution of serialized code on the IBM OS/390 UNIX system.

US Patent:

7113937, Sep 26, 2006

Filed:

Dec 18, 2001

Appl. No.:

10/033809

Inventors:

David Harold Goode - San Jose CA, US
William Earl Malloy - Santa Clara CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 17/30

US Classification:

707 2, 710 24

Abstract:

Systems, methods, and computer program products for improving the performance of computer-implemented I/O operations for complex applications, such as databases. Applications that are ported to the IBM OS/390 UNIX System Services may be enhanced by the present invention to improve I/O performance. That is, the present invention may be implemented by augmenting general-purpose I/O access features with specialized I/O access operations that are tailored to enhance I/O access performance for complex applications, such as databasbes, on the IBM OS/390 UNIX System Services.

US Patent:

7296193, Nov 13, 2007

Filed:

Jan 7, 2004

Appl. No.:

10/753902

Inventors:

David Harold Goode - San Jose CA, US
Thinh Hong - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 11/00

US Classification:

714 57, 714 15, 714 23, 714 48, 714 49, 710 52, 710 57, 711170

Abstract:

A method, apparatus and article of manufacture, implementing the method, processes an error when a write fails in an application that has been ported from a first platform to a second platform. The second platform has a write-to-operator-with-reply call that is not available in the first operating system. The application issues a file write. The application receives an out-of-space error in response to the file write. The application issues a write-to-operator-with-reply call to send a message indicating the out-of-space error to a console.

US Patent:

7310689, Dec 18, 2007

Filed:

Apr 14, 2004

Appl. No.:

10/824902

Inventors:

David Harold Goode - San Jose CA, US
William Earl Malloy - Santa Clara CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 3/00

US Classification:

710 5, 710 39, 710 40, 707 2, 711112

Abstract:

Systems, methods, and computer products that improve the performance of computer-implemented I/O operations for complex applications, such as a database, that are ported to target computer systems that are not tailored to support the high-performance services that may benefit applications. Complex applications, such as a database, often manage I/O access operations by a caching mechanism that is tailored to the needs of the application. When porting an application to a target computer system that does not support certain I/O access features, I/O performance of the application may be limited. The present invention may be implemented by introducing specialized I/O access features that are tailored to enhance I/O access performance for complex applications, such as a database.

US Patent:

20030167357, Sep 4, 2003

Filed:

Mar 4, 2002

Appl. No.:

10/090236

Inventors:

David Goode - San Jose CA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification:

G06F009/46
G06F009/45

US Classification:

709/328000, 717/152000, 717/137000

Abstract:

There is provided a method for enhancing source code for execution on a computer platform that has a capability to employ a memory file. The method includes the steps of recognizing an occurrence of a first instruction in the source code that does not utilize the capability, and supplementing the source code with a second instruction that utilizes the capability.