Patents by Inventor Mohit Karve

Mohit Karve 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).

  • Patent number: 10191847
    Abstract: Techniques are disclosed for identifying data streams in a processor that are likely to and not likely to benefit from data prefetching. A prefetcher receives at least a first request in a plurality of requests to pre-fetch data from a stream in a plurality of streams. The prefetcher assigns a confidence level to the first request based on an amount of confirmations observed in the stream. The request is in a confident state if the confidence level exceeds a specified value. The first request is in a non-confident state if the confidence level does not exceed the specified value. Requests to prefetch data in the plurality of requests that are associated with respective streams with a low prefetch utilization are deprioritized. Doing so allows a memory controller to determine whether to drop the at least the first request based on the confidence level, prefetch utilization, and memory resource utilization.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 29, 2019
    Assignee: International Business Machines Corporation
    Inventors: Bernard C. Drerup, Richard J. Eickemeyer, Guy L. Guthrie, Mohit Karve, George W. Rohrbaugh, III, Brian W. Thompto
  • Patent number: 10191845
    Abstract: Techniques are disclosed for identifying data streams in a processor that are likely to and not likely to benefit from data prefetching. A prefetcher receives at least a first request in a plurality of requests to pre-fetch data from a stream in a plurality of streams. The prefetcher assigns a confidence level to the first request based on an amount of confirmations observed in the stream. The request is in a confident state if the confidence level exceeds a specified value. The first request is in a non-confident state if the confidence level does not exceed the specified value. Requests to prefetch data in the plurality of requests that are associated with respective streams with a low prefetch utilization are deprioritized. Doing so allows a memory controller to determine whether to drop the at least the first request based on the confidence level, prefetch utilization, and memory resource utilization.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: January 29, 2019
    Assignee: International Business Machines Corporation
    Inventors: Bernard C. Drerup, Richard J. Eickemeyer, Guy L. Guthrie, Mohit Karve, George W. Rohrbaugh, III, Brian W. Thompto
  • Publication number: 20180341592
    Abstract: Techniques are disclosed for identifying data streams in a processor that are likely to and not likely to benefit from data prefetching. A prefetcher receives at least a first request in a plurality of requests to pre-fetch data from a stream in a plurality of streams. The prefetcher assigns a confidence level to the first request based on an amount of confirmations observed in the stream. The request is in a confident state if the confidence level exceeds a specified value. The first request is in a non-confident state if the confidence level does not exceed the specified value. Requests to prefetch data in the plurality of requests that are associated with respective streams with a low prefetch utilization are deprioritized. Doing so allows a memory controller to determine whether to drop the at least the first request based on the confidence level, prefetch utilization, and memory resource utilization.
    Type: Application
    Filed: November 13, 2017
    Publication date: November 29, 2018
    Inventors: Bernard C. Drerup, Richard J. Eickemeyer, Guy L. Guthrie, Mohit Karve, George W. Rohrbaugh, III, Brian W. Thompto
  • Publication number: 20180341591
    Abstract: Techniques are disclosed for identifying data streams in a processor that are likely to and not likely to benefit from data prefetching. A prefetcher receives at least a first request in a plurality of requests to pre-fetch data from a stream in a plurality of streams. The prefetcher assigns a confidence level to the first request based on an amount of confirmations observed in the stream. The request is in a confident state if the confidence level exceeds a specified value. The first request is in a non-confident state if the confidence level does not exceed the specified value. Requests to prefetch data in the plurality of requests that are associated with respective streams with a low prefetch utilization are deprioritized. Doing so allows a memory controller to determine whether to drop the at least the first request based on the confidence level, prefetch utilization, and memory resource utilization.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Inventors: Bernard C. Drerup, Richard J. Eickemeyer, Guy L. Guthrie, Mohit Karve, George W. Rohrbaugh, III, Brian W. Thompto