Patents by Inventor Dmitri Pivkine

Dmitri Pivkine 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).

  • Copying and forwarding for concurrent copying garbage collection
    Patent number: 10877884
    Abstract: An approach for optimizing a copying of a data object in a concurrent copying garbage collection operation is provided. In an embodiment, a source copy of the data object to be copied as part of the garbage collection operation is identified. A copying of the source copy to a target location is initiated by a primary accessing thread. This initiating of the copying includes the creation of a temporary target object header for the target object in the target location that contains an indicator set to indicate that the copying is ongoing. As the copying is occurring, the execution of any other accessing threads that are attempting to use the data object are held for as long as the indicator indicates that the copying is ongoing. Once the copying has completed, the target object header is replaced with a copy of the source object header, resetting the indicator.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: December 29, 2020
    Assignee: International Business Machines Corporation
    Inventors: Aleksandar Micic, Joran S. C. Siu, Irwin D'Souza, Filip Jeremic, Charles R. Gracie, Dmitri Pivkine
  • COPYING AND FORWARDING FOR CONCURRENT COPYING GARBAGE COLLECTION
    Publication number: 20190213125
    Abstract: An approach for optimizing a copying of a data object in a concurrent copying garbage collection operation is provided. In an embodiment, a source copy of the data object to be copied as part of the garbage collection operation is identified. A copying of the source copy to a target location is initiated by a primary accessing thread. This initiating of the copying includes the creation of a temporary target object header for the target object in the target location that contains an indicator set to indicate that the copying is ongoing. As the copying is occurring, the execution of any other accessing threads that are attempting to use the data object are held for as long as the indicator indicates that the copying is ongoing. Once the copying has completed, the target object header is replaced with a copy of the source object header, resetting the indicator.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 11, 2019
    Inventors: Aleksandar Micic, Joran S.C. Siu, Irwin D'Souza, Filip Jeremic, Charles R. Gracie, Dmitri Pivkine