Patents by Inventor Ravisprasad Mummidi

Ravisprasad Mummidi 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).

  • System and method to prioritize large memory page allocation in virtualized systems
    Patent number: 8769184
    Abstract: The prioritization of large memory page mapping is a function of the access bits in the L1 page table. In a first phase of operation, the number of set access bits in each of the L1 page tables is counted periodically and a current count value is calculated therefrom. During the first phase, no pages are mapped large even if identified as such. After the first phase, the current count value is used to prioritize among potential large memory pages to determine which pages to map large. The system continues to calculate the current count value even after the first phase ends. When using hardware assist, the access bits in the nested page tables are used and when using software MMU, the access bits in the shadow page tables are used for large page prioritization.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 1, 2014
    Assignee: VMware, Inc.
    Inventors: Qasim Ali, Ravisprasad Mummidi, Vivek Pandey, Kiran Tati