Patents by Inventor Gautham R. Shenoy

Gautham R. Shenoy 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).

  • Read/write lock with reduced reader lock sampling overhead in absence of writer lock acquisition
    Patent number: 7934062
    Abstract: An improved reader-writer locking for synchronizing access to shared data. When writing the shared data, a writer flag is set and a lock is acquired on the shared data. The shared data may be accessed following the expiration of a grace period and a determination that there are no data readers accessing the shared data. When reading the shared data, the writer flag is tested that indicates whether a data writer is attempting to access the shared data. If the writer flag is not set, the shared data is accessed using a relatively fast read mechanism. If the writer flag is set, the shared data is accessed using a relatively slow read mechanism.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: April 26, 2011
    Assignee: International Business Machines Corporation
    Inventors: Paul E. McKenney, Vaddagiri Srivatsa, Gautham R. Shenoy
  • READ/WRITE LOCK WITH REDUCED READER LOCK SAMPLING OVERHEAD IN ABSENCE OF WRITER LOCK ACQUISITION
    Publication number: 20080320262
    Abstract: An improved reader-writer locking for synchronizing access to shared data. When writing the shared data, a writer flag is set and a lock is acquired on the shared data. The shared data may be accessed following the expiration of a grace period and a determination that there are no data readers accessing the shared data. When reading the shared data, the writer flag is tested that indicates whether a data writer is attempting to access the shared data. If the writer flag is not set, the shared data is accessed using a relatively fast read mechanism. If the writer flag is set, the shared data is accessed using a relatively slow read mechanism.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul E. McKenney, Vaddagiri Srivatsa, Gautham R. Shenoy