Patents by Inventor Carol D. Hartman

Carol D. Hartman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dynamically switching between different types of concurrency control techniques to provide an adaptive access strategy for a parallel file system
    Patent number: 6826570
    Abstract: Concurrent access to data is managed through concurrency control techniques. Various types of techniques are employed to manage the access, including locking-based techniques and non-locking-based techniques. A dynamic switch from one type of concurrency control technique (e.g., a locking-based technique) to a different type of concurrency control technique (e.g., a non-locking-based technique) is enabled. This switching is based on access patterns and/or application requirements for each file. The switching allows enhanced performance for both coarse-grain sharing and fine-grain sharing of data.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: November 30, 2004
    Assignee: International Business Machines Corporation
    Inventors: Marc M. Eshel, Carol D. Hartman, Frank B. Schmuck, James C. Wyllie