Patents by Inventor Keerthi Kumar

Keerthi Kumar 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: 11914469
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of clustered memory. A computing device can generate at least one parity page from at least a first local page and a second local page. The computing device can then submit a first write request for the first local page to a first one of a plurality of memory hosts. The computing device can also submit a second write request for the second local page to a second one of the plurality of memory hosts. Additionally, the computing device can submit a third write request for the parity page to a third one of the plurality of memory hosts.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: February 27, 2024
    Assignee: VMware, Inc.
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20240063994
    Abstract: A method, system and apparatus are disclosed. According to some embodiments, a network node is provided which is configured to communicate with a wireless device using at least one of a plurality of transmission and reception points, TRPs. The network node includes processing circuitry configured to indicate to the wireless device a first downlink reference signal, DL RS, of a plurality of downlink reference signals, DL RSs, to use for deriving an uplink, UL, transmission parameter for an UL transmission, each of the plurality of DL RSs being associated with a respective one of the plurality of TRPs. The processing circuitry is further configured to receive the UL transmission, the UL transmission being based on the derived UL transmission parameter.
    Type: Application
    Filed: January 14, 2022
    Publication date: February 22, 2024
    Inventors: Shiwei GAO, Jianwei ZHANG, Keerthi Kumar NAGALAPUR
  • Patent number: 11907065
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of clustered memory. A computing device can generate at least one parity page from at least a first local page and a second local page. The computing device can then submit a first write request for the first local page to a first one of a plurality of memory hosts. The computing device can also submit a second write request for the second local page to a second one of the plurality of memory hosts. Additionally, the computing device can submit a third write request for the parity page to a third one of the plurality of memory hosts.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: February 20, 2024
    Assignee: VMware, Inc.
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20230376877
    Abstract: Organizations are struggling to ensure business continuity without compromising on delivery excellence in the face of pandemic related uncertainties which exists along multiple dimensions effected by authorities. This uncertainty plays out in a non-uniform manner thus leading to highly heterogeneous evolution of pandemic. Present disclosure provides digital twin based systems and methods for business continuity plan and safe return to workplace wherein a simulation-based data-driven evidence-backed approach is implemented that captures details pertaining to virus, individualistic characteristics of employees and their dependents, offices, locations of the employees and offices, and various pandemic control measures that are in effect and need to be explored using a hybrid modelling and simulation approach that combines fine-grained actor/agent model and coarse-grained stock-and-flow model.
    Type: Application
    Filed: March 24, 2023
    Publication date: November 23, 2023
    Applicant: Tata Consultancy Services Limited
    Inventors: Souvik BARAT, Vinay KULKARNI, Avinash Mahadeo BHIDE, Prabha THOMAS, Dushyanthi MULPURU, Savitha SAMUDRALA, Abhishek YADAV, Anwesha BASU, Keerthi Kumar KRISHNA
  • Publication number: 20230315593
    Abstract: Techniques for implementing RDMA-based recovery of dirty data in remote memory are provided. In one set of embodiments, upon occurrence of a failure at a first (i.e., source) host system, a second (i.e., failover) host system can allocate a new memory region corresponding to a memory region of the source host system and retrieve a baseline copy of the memory region from a storage backend shared by the source and failover host systems. The failover host system can further populate the new memory region with the baseline copy and retrieve one or more dirty page lists for the memory region from the source host system via RDMA, where the one or more dirty page lists identify memory pages in the memory region that include data updates not present in the baseline copy. For each memory page identified in the one or more dirty page lists, the failover host system can then copy the content of that memory page from the memory region of the source host system to the new memory region via RDMA.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Keerthi Kumar, Halesh Sadashiv, Sairam Veeraswamy, Rajesh Venkatasubramanian, Kiran Dikshit, Kiran Tati
  • Publication number: 20230297257
    Abstract: Disclosed are various embodiments for improving resiliency and performance of clustered memory. A computing device can acquire a chunk of byte-addressable memory from a cluster memory host. The computing device can then identify an active set of allocated memory pages and an inactive set of allocated memory pages for a process executing on the computing device. Next, the computing device can store the active set of allocated memory pages for the process in the memory of the computing device. Finally, the computing device can store the inactive set of allocated memory pages for the process in the chunk of byte-addressable memory of the cluster memory host.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Inventors: Marcos K. AGUILERA, Keerthi KUMAR, Pramod KUMAR, Pratap SUBRAHMANYAM, Sairam VEERASWAMY, Rajesh VENKATASUBRAMANIAN
  • Publication number: 20230273751
    Abstract: Disclosed are various embodiments for improving the resiliency and performance for clustered memory. A computing device can mark a page of the memory as being reclaimed. The computing device can then set the page of the memory as read-only. Next, the computing device can submit a write request for the contents of the page to individual ones of a plurality of memory hosts. Subsequently, the computing device can receive individual confirmations of a successful write of the page from the individual ones of the plurality of memory hosts. Then, the computing device can mark the page as free in response to receipt of the individual confirmations of the successful write from the individual ones of the plurality of memory hosts.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Inventors: MARCOS K. AGUILERA, KEERTHI KUMAR, PRAMOD KUMAR, PRATAP SUBRAHMANYAM, SAIRAM VEERASWAMY, RAJESH VENKATASUBRAMANIAN
  • Publication number: 20230262544
    Abstract: There is provided mechanisms for migrating UEs from node to an R-IAB node. A method is performed by a D-IAB node of the S-IAB node and the R-IAB node. The method comprises obtaining a request for replacement of the S-IAB node. The method comprises providing, to the S-IAB node, an indication of replacement of the S-IAB node. The method comprises obtaining, from the S-IAB node, scheduling information for the UEs served by the S-IAB node. The method comprises forwarding, to the R-IAB node, the scheduling information. The method comprises initiating migration of at least a subset of the UEs from the S-IAB node to the R-IAB node by providing instructions, via the S-IAB node, to at least the subset of the UEs to switch from is served by the S-IAB node to is served by the R-IAB node.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 17, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Keerthi Kumar NAGALAPUR, Per-Erik ERIKSSON, Jingya LI
  • Patent number: 11720457
    Abstract: Techniques for implementing RDMA-based recovery of dirty data in remote memory are provided. In one set of embodiments, upon occurrence of a failure at a first (i.e., source) host system, a second (i.e., failover) host system can allocate a new memory region corresponding to a memory region of the source host system and retrieve a baseline copy of the memory region from a storage backend shared by the source and failover host systems. The failover host system can further populate the new memory region with the baseline copy and retrieve one or more dirty page lists for the memory region from the source host system via RDMA, where the one or more dirty page lists identify memory pages in the memory region that include data updates not present in the baseline copy. For each memory page identified in the one or more dirty page lists, the failover host system can then copy the content of that memory page from the memory region of the source host system to the new memory region via RDMA.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: August 8, 2023
    Assignee: VMware, Inc.
    Inventors: Keerthi Kumar, Halesh Sadashiv, Sairam Veeraswamy, Rajesh Venkatasubramanian, Kiran Dikshit, Kiran Tati
  • Patent number: 11704030
    Abstract: Disclosed are various embodiments for improving resiliency and performance of clustered memory. A computing device can acquire a chunk of byte-addressable memory from a cluster memory host. The computing device can then identify an active set of allocated memory pages and an inactive set of allocated memory pages for a process executing on the computing device. Next, the computing device can store the active set of allocated memory pages for the process in the memory of the computing device. Finally, the computing device can store the inactive set of allocated memory pages for the process in the chunk of byte-addressable memory of the cluster memory host.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: July 18, 2023
    Assignee: VMWARE, INC.
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Patent number: 11698760
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of cluster memory. First, a computing device can submit a write request to a byte-addressable chunk of memory stored by a memory host, wherein the byte-addressable chunk of memory is read-only. Then, the computing device can determine that a page-fault occurred in response to the write request. Next, the computing device can copy a page associated with the write request from the byte-addressable chunk of memory to the memory of the computing device. Subsequently, the computing device can free the page from the memory host. Then, the computing device can update a page table entry for the page to refer to a location of the page in the memory of the computing device.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: July 11, 2023
    Assignee: VMWARE, INC.
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Patent number: 11687286
    Abstract: Disclosed are various embodiments for improving the resiliency and performance for clustered memory. A computing device can mark a page of the memory as being reclaimed. The computing device can then set the page of the memory as read-only. Next, the computing device can submit a write request for the contents of the page to individual ones of a plurality of memory hosts. Subsequently, the computing device can receive individual confirmations of a successful write of the page from the individual ones of the plurality of memory hosts. Then, the computing device can mark the page as free in response to receipt of the individual confirmations of the successful write from the individual ones of the plurality of memory hosts.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: June 27, 2023
    Assignee: VMWARE, INC.
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20230168965
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of clustered memory. A computing device can generate at least one parity page from at least a first local page and a second local page. The computing device can then submit a first write request for the first local page to a first one of a plurality of memory hosts. The computing device can also submit a second write request for the second local page to a second one of the plurality of memory hosts. Additionally, the computing device can submit a third write request for the parity page to a third one of the plurality of memory hosts.
    Type: Application
    Filed: January 25, 2023
    Publication date: June 1, 2023
    Inventors: Marcos K. Aguilera, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20230012999
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of clustered memory. A computing device can generate at least one parity page from at least a first local page and a second local page. The computing device can then submit a first write request for the first local page to a first one of a plurality of memory hosts. The computing device can also submit a second write request for the second local page to a second one of the plurality of memory hosts. Additionally, the computing device can submit a third write request for the parity page to a third one of the plurality of memory hosts.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 19, 2023
    Inventors: MARCOS K. AGUILERA, KEERTHI KUMAR, PRAMOD KUMAR, PRATAP SUBRAHMANYAM, SAIRAM VEERASWAMY, RAJESH VENKATASUBRAMAN IAN
  • Publication number: 20230017224
    Abstract: Disclosed are various embodiments for improving the resiliency and performance for clustered memory. A computing device can mark a page of the memory as being reclaimed. The computing device can then set the page of the memory as read-only. Next, the computing device can submit a write request for the contents of the page to individual ones of a plurality of memory hosts. Subsequently, the computing device can receive individual confirmations of a successful write of the page from the individual ones of the plurality of memory hosts. Then, the computing device can mark the page as free in response to receipt of the individual confirmations of the successful write from the individual ones of the plurality of memory hosts.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 19, 2023
    Inventors: MARCOS K. AGUILERA, KEERTHI KUMAR, PRAMOD KUMAR, PRATAP SUBRAHMANYAM, SAIRAM VEERASWAMY, RAJESH VENKATASUBRAMANIAN
  • Publication number: 20230021067
    Abstract: Disclosed are various embodiments for improving resiliency and performance of clustered memory. A computing device can acquire a chunk of byte-addressable memory from a cluster memory host. The computing device can then identify an active set of allocated memory pages and an inactive set of allocated memory pages for a process executing on the computing device. Next, the computing device can store the active set of allocated memory pages for the process in the memory of the computing device. Finally, the computing device can store the inactive set of allocated memory pages for the process in the chunk of byte-addressable memory of the cluster memory host.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 19, 2023
    Inventors: MARCOS K. AGUILERA, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20230017804
    Abstract: Disclosed are various embodiments for improving the resiliency and performance of cluster memory. First, a computing device can submit a write request to a byte-addressable chunk of memory stored by a memory host, wherein the byte-addressable chunk of memory is read-only. Then, the computing device can determine that a page-fault occurred in response to the write request. Next, the computing device can copy a page associated with the write request from the byte-addressable chunk of memory to the memory of the computing device. Subsequently, the computing device can free the page from the memory host. Then, the computing device can update a page table entry for the page to refer to a location of the page in the memory of the computing device.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 19, 2023
    Inventors: MARCOS K. AGUILERA, Keerthi Kumar, Pramod Kumar, Pratap Subrahmanyam, Sairam Veeraswamy, Rajesh Venkatasubramanian
  • Publication number: 20230012693
    Abstract: Disclosed are various embodiments for optimizing hypervisor paging. A hypervisor can save a machine page to a swap device, the machine page comprising data for a physical page of a virtual machine allocated to a virtual page for a process executing within the virtual machine. The hypervisor can then catch a page fault for a subsequent access of the machine page by the virtual machine. Next, the hypervisor can determine that the physical page is currently unallocated by the virtual machine in response to the page fault. Subsequently, the hypervisor can send a command to the swap device to discard the machine page saved to the swap device in response to a determination that the physical page is currently unallocated by the virtual machine.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 19, 2023
    Inventors: MARCOS K. AGUILERA, DHANTU BURAGOHAIN, KEERTHI KUMAR, PRAMOD KUMAR, PRATAP SUBRAHMANYAM, SAIRAM VEERASWAMY, RAJESH VENKATASUBRAMANIAN
  • Publication number: 20220387690
    Abstract: Various implementations include an arteriovenous graft device. The device includes an outer conduit and an inner conduit. The outer conduit has a first outer conduit end and a second outer conduit end opposite the first outer conduit end. The first outer conduit end defines an outer conduit opening extending from the first outer conduit end to the second outer conduit end. The first outer conduit end is configured to be in fluid communication with an artery and the second outer conduit end is configured to be in fluid communication with a vein. The inner conduit defines an inner conduit opening. The inner conduit is sized to be disposed within the outer conduit opening. The inner conduit is movable between a collapsed position and an expandable position.
    Type: Application
    Filed: April 25, 2022
    Publication date: December 8, 2022
    Inventors: Mark Ruegsegger, Khaled Boubes, Sheila Colbert, Gurleen Vilkhu, Jacob Miller, Kellen Biesbrock, Ana Minyayev, Kenzington Kottenbrock, Jordan Rosales, Tasneem Mohammad, Keerthi Kumar
  • Publication number: 20220365855
    Abstract: Techniques for implementing RDMA-based recovery of dirty data in remote memory are provided. In one set of embodiments, upon occurrence of a failure at a first (i.e., source) host system, a second (i.e., failover) host system can allocate a new memory region corresponding to a memory region of the source host system and retrieve a baseline copy of the memory region from a storage backend shared by the source and failover host systems. The failover host system can further populate the new memory region with the baseline copy and retrieve one or more dirty page lists for the memory region from the source host system via RDMA, where the one or more dirty page lists identify memory pages in the memory region that include data updates not present in the baseline copy. For each memory page identified in the one or more dirty page lists, the failover host system can then copy the content of that memory page from the memory region of the source host system to the new memory region via RDMA.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Inventors: Keerthi Kumar, Halesh Sadashiv, Sairam Veeraswamy, Rajesh Venkatasubramanian, Kiran Dikshit, Kiran Tati