Michael T Donovan

US Patent:

7251815, Jul 31, 2007

Filed:

Apr 29, 2003

Appl. No.:

10/425469

Inventors:

Michael J. Donovan - Endicott NY, US
Melissa K. Howland - Endicott NY, US
Steven Shultz - Endicott NY, US
Xenia Tkatschow - Jamesville NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9/46
G06F 9/455
G06F 3/00
G06F 9/44
G06F 13/00

US Classification:

718105, 718 1, 718102, 719312

Abstract:

A system, computer program product and method for dispatching work items in a virtual machine operating system. The virtual machine operating system defines first and second virtual machines. First and second work queues are created in a memory. The first virtual machine assigns a first work item to the first work queue and a second work item to the second work queue. The first virtual machine schedules work items from the first work queue for execution by the first virtual machine. The first and second work items originate from the first virtual machine. The first and second work queues are directly accessible by the first virtual machine. The second virtual machine assigns a third work item to the first work queue and a fourth work item to the second work queue. The second virtual machine schedules work items from the second work queue for execution by the second virtual machine. The third and fourth work items originate from the second virtual machine.

US Patent:

7328437, Feb 5, 2008

Filed:

Apr 29, 2003

Appl. No.:

10/425468

Inventors:

Michael J. Donovan - Endicott NY, US
Melissa K. Howland - Endicott NY, US
Steven Shultz - Endicott NY, US
Xenia Tkatschow - Jamesville NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9/455
G06F 12/00

US Classification:

718 1, 711153

Abstract:

A technique to collectively manage locks by multiple virtual machines and then access shared data protected by the locks. A computer system defines first and second virtual machines and a memory shared by the first and second virtual machines. A lock structure is defined in the shared memory. The lock structure is capable of listing a holder of a lock for shared data in the shared memory. The first virtual machine acquires a lock for the shared data when available by manipulation of the lock structure. After acquiring the lock, the first virtual machine accesses the shared data. The lock structure and the shared data are directly accessible by the first virtual machine. The second virtual machine acquires a lock for the shared data when available by manipulation of the lock structure. After acquiring the lock, the second virtual machine accesses the shared data. The lock structure and shared data are directly accessible by the second virtual machine.

US Patent:

53662482, Nov 22, 1994

Filed:

Aug 20, 1993

Appl. No.:

8/109360

Inventors:

Robert G. Donvan - Pittston PA
Michael D. Donovan - Pittston PA

International Classification:

B42D 106

US Classification:

281 46

Abstract:

A case supports a multi-leafed notebook and a file. The notebook is supported by a pair of spaced brackets having prongs extending toward one another with a prong of each bracket inserted between leaves of the notebook. A prong on one bracket has a depending portion to prevent the notebook from escaping the prong. A stop member is movably mounted on one bracket and engages the notebook to prevent inadvertent release of the notebook. The stop member has a scalloped edge for engaging the prongs. Support pockets are disposed on the front and back parts of the case by a single sheet of material having an intermediate part sealed to the hinge of the case. A file support pocket is formed by a sheet of material having free side edges. The file has a cover member and a plurality of interior members pivotally connected to one another along fold lines. The cover member includes an integral storage pocket, and each interior member has an integral storage pocket on each of its opposite faces.