Patents by Inventor Zhelong Pan

Zhelong Pan 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).

  • Publication number: 20210373971
    Abstract: Various examples are disclosed for performing cross-cluster load balancing. In some aspects, a workload is selected for cross-cluster migration. A destination cluster is identified for a migration of the workload from a source cluster to the destination cluster. A cross-cluster migration recommendation is generated to migrate the workload from the source cluster to the destination cluster.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Lei Lu, Varun S Lingaraju, Zhelong Pan, Rajesh Venkatasubramanian, Sahan Bamunavita Gamage, Charan K Singh, Bing Hu, Xiaoyuan Lu
  • Patent number: 11182189
    Abstract: Disclosed are various embodiments for distributing the load of a plurality of virtual machines across a plurality of hosts. A potential new host for a virtual machine executing on a current host is identified. A gain rate associated with migration of the virtual machine from the current host to the potential new host is calculated. A gain duration associated with migration of the virtual machine from the current host to the potential new host is also calculated. A migration cost for migration of the virtual machine from the current host to the potential new host, the migration cost being based on the gain rate and the gain duration is determined. It is then determined whether the migration cost is below a predefined threshold cost. Migration of the virtual machine from the current host to the optimal host is initiated in response to a determination that the migration cost is below the predefined threshold.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: November 23, 2021
    Assignee: VMWARE, INC.
    Inventors: Haoqiang Zheng, Fei Guo, Zhelong Pan
  • Patent number: 11182196
    Abstract: Various aspects are disclosed for unified resource management of containers and virtual machines. A podVM resource configuration for a pod virtual machine (podVM) is determined using container configurations. The podVM comprising a virtual machine (VM) that provides resource isolation for a pod based on the podVM resource configuration. A host selection for the podVM is received from a VM scheduler. The host selection identifies hardware resources for the podVM. A container scheduler is limited to bind the podVM to a node corresponding to the hardware resources of the host selection from the VM scheduler. The podVM is created in a host corresponding to the host selection. Containers are started within the podVM. The containers correspond to the container configurations.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: November 23, 2021
    Assignee: VMWARE, INC.
    Inventors: Sahan Gamage, Benjamin J. Corrie, Adrian Drzewiecki, Pranshu Jain, Mark Johnson, Zhelong Pan, Rajesh Venkatasubramanian
  • Publication number: 20210357269
    Abstract: Examples described herein include systems and methods for prioritizing workloads, such as virtual machines, to enforce quality of service (“QoS”) requirements. An administrator can assign profiles to workloads, the profiles representing different QoS categories. The profiles can extend scheduling primitives that can determine how a distributed resource scheduler (“DRS”) acts on workloads during various workflows. The scheduling primitives can be used to prioritize workload placement, determine whether to migrate a workload during load balancing, and determine an action to take during host maintenance. The DRS can also use the profile to determine which resources at the host to allocate to the workload, distributing higher portions to workloads with higher QoS profiles. Further, the DRS can factor in the profiles in determining total workload demand, leading to more efficient scaling of the cluster.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 18, 2021
    Inventors: Zhelong Pan, Matthew Kim, Varun S. Lingaraju
  • Publication number: 20210294651
    Abstract: Various examples are disclosed for placing virtual machine (VM) workloads in a computing environment. Ephemeral workloads can be placed onto reserved instances or reserved hosts in a cloud-based VM environment. If a request to place a guaranteed workload is received, ephemeral workloads can be evacuated to make way for the guaranteed workload.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 23, 2021
    Inventors: Dragos Victor Misca, Sahan Bamunavita Gamage, Pranshu Jain, Zhelong Pan
  • Patent number: 11126452
    Abstract: Disclosed are various embodiments for distributing the load of a plurality of virtual machines across a plurality of hosts. A first plurality of efficiency ratings for a current host of a virtual machine are calculated. A second plurality of efficiency ratings for a potential new host of the virtual machine are also calculated. The first plurality of efficiency ratings are compared to the second plurality of efficiency ratings to determine that the potential new host for the virtual machine is an optimal host for the virtual machine. Then migration of the virtual machine from the current host to the optimal host is initiated.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 21, 2021
    Assignee: VMWARE, INC.
    Inventors: Haoqiang Zheng, Fei Guo, Zhelong Pan
  • Patent number: 11126461
    Abstract: The present disclosure relates generally to virtualization, and more particularly to techniques for deploying containers in a virtual environment. The container scheduling can be based on information determined by a virtual machine scheduler. For example, a container scheduler can receive a request to deploy a container. The container scheduler can send container information to the virtual machine scheduler. The virtual machine scheduler can use the container information along with resource utilization of one or more virtual machines to determine an optimal virtual machine for the container. The virtual machine scheduler can send an identification of the optimal virtual machine back to the container scheduler so that the container scheduler can deploy the container on the optimal virtual machine.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: September 21, 2021
    Assignee: VMware, Inc.
    Inventors: Thaleia Dimitra Doudali, Zhelong Pan, Pranshu Jain
  • Patent number: 11113109
    Abstract: Various examples are disclosed for cluster resource management using adaptive memory demands. Some aspects involve determining a destination memory estimate and a local memory estimate for various workloads executing in a datacenter. Goodness scores are determined corresponding to the candidate workload being executed on a number of different hosts. The goodness scores are determined using the local memory estimates for the currently executing workloads, the destination memory estimate is utilized for the candidate workload if it is not executing on the corresponding host. The workloads are balanced based on the goodness scores.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: September 7, 2021
    Assignee: VMWARE, INC.
    Inventors: Zhelong Pan, Rajesh Venkatasubramanian, Julien Freche, Prashanth Victor
  • Patent number: 11074111
    Abstract: Examples described herein include systems and methods for prioritizing workloads, such as virtual machines, to enforce quality of service (“QoS”) requirements. An administrator can assign profiles to workloads, the profiles representing different QoS categories. The profiles can extend scheduling primitives that can determine how a distributed resource scheduler (“DRS”) acts on workloads during various workflows. The scheduling primitives can be used to prioritize workload placement, determine whether to migrate a workload during load balancing, and determine an action to take during host maintenance. The DRS can also use the profile to determine which resources at the host to allocate to the workload, distributing higher portions to workloads with higher QoS profiles. Further, the DRS can factor in the profiles in determining total workload demand, leading to more efficient scaling of the cluster.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: July 27, 2021
    Assignee: VMware, Inc
    Inventors: Zhelong Pan, Matthew Kim, Varun S. Lingaraju
  • Publication number: 20210224168
    Abstract: A method of restarting a virtual machine (VM) running in a cluster in a first data center, in a second data center, includes: transmitting images of VMs, including a first VM, running in the cluster of hosts at a first point in time to the second data center for replication in the second data center; generating difference data representing a difference in an image of the first VM at a second point in time and the image of the first VM at the first point in time; transmitting the difference data to the second data center; setting the first VM to be inactive in the first data center; and communicating with a control plane in the second data center to set as active, and power on, a VM in the second data center using the replicated image of the first VM updated with the difference data.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 22, 2021
    Inventors: Anant AGARWAL, Rahul CHANDRASEKARAN, Aalap DESAI, Vikram NAIR, Zhelong PAN
  • Publication number: 20210224077
    Abstract: A method of restarting a virtual machine running in a cluster of hosts in a first data center, in a second data center, wherein each virtual machine is assigned a priority level, includes: transmitting virtual machines images running in the cluster at a first time to the second data center; selecting virtual machines to be restarted in the second data center according to priority levels assigned; and for each selected virtual machine, (a) generating difference data in an image of the selected virtual machine at a second time and at the first time, (b) transmitting the difference data to the second data center, (c) setting the virtual machine inactive in the first data center, and (d) communicating with the second data center to set as active; and power on, a virtual machine in the second data center using the image of the virtual machine transmitted to the second data center.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 22, 2021
    Inventors: Anant AGARWAL, Rahul CHANDRASEKARAN, Aalap DESAI, Vikram NAIR, Zhelong PAN
  • Publication number: 20210216372
    Abstract: Various examples are disclosed for cluster resource management using adaptive memory demands. Some aspects involve determining a destination memory estimate and a local memory estimate for various workloads executing in a datacenter. Goodness scores are determined corresponding to the candidate workload being executed on a number of different hosts. The goodness scores are determined using the local memory estimates for the currently executing workloads, the destination memory estimate is utilized for the candidate workload if it is not executing on the corresponding host. The workloads are balanced based on the goodness scores.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 15, 2021
    Inventors: Zhelong Pan, Rajesh Venkatasubramanian, Julien Freche, Prashanth Victor
  • Publication number: 20210211492
    Abstract: Load balancing across hosts in a computer system is triggered based on pairwise comparisons of resource utilization at different host. A method for load balancing across hosts includes the steps of determining a resource utilization difference between first and second hosts, wherein the first host has a higher resource utilization than the second host, comparing the resource utilization difference against a threshold difference, and upon determining that the resource utilization difference exceeds the threshold difference, selecting a workload executing in the first host for migration to the second host.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventors: Badhrinath Sampathkumar, Zhelong Pan, Haoqiang Zheng, Fei Guo, Sabareesh Subramaniam
  • Publication number: 20210141655
    Abstract: Various aspects are disclosed for unified resource management of containers and virtual machines. A podVM resource configuration for a pod virtual machine (podVM) is determined using container configurations. The podVM comprising a virtual machine (VM) that provides resource isolation for a pod based on the podVM resource configuration. A host selection for the podVM is received from a VM scheduler. The host selection identifies hardware resources for the podVM. A container scheduler is limited to bind the podVM to a node corresponding to the hardware resources of the host selection from the VM scheduler. The podVM is created in a host corresponding to the host selection. Containers are started within the podVM. The containers correspond to the container configurations.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 13, 2021
    Inventors: Sahan Gamage, Benjamin J. Corrie, Adrian Drzewiecki, Pranshu Jain, Mark Johnson, Zhelong Pan, Rajesh Venkatasubramanian
  • Patent number: 10958719
    Abstract: Load balancing across hosts in a computer system is triggered based on pairwise comparisons of resource utilization at different host. A method for load balancing across hosts includes the steps of determining a resource utilization difference between first and second hosts, wherein the first host has a higher resource utilization than the second host, comparing the resource utilization difference against a threshold difference, and upon determining that the resource utilization difference exceeds the threshold difference, selecting a workload executing in the first host for migration to the second host.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 23, 2021
    Assignee: VMware, Inc.
    Inventors: Badhrinath Sampathkumar, Zhelong Pan, Haoqiang Zheng, Fei Guo, Sabareesh Subramaniam
  • Publication number: 20210019160
    Abstract: Examples described herein include systems and methods for prioritizing workloads, such as virtual machines, to enforce quality of service (“QoS”) requirements. An administrator can assign profiles to workloads, the profiles representing different QoS categories. The profiles can extend scheduling primitives that can determine how a distributed resource scheduler (“DRS”) acts on workloads during various workflows. The scheduling primitives can be used to prioritize workload placement, determine whether to migrate a workload during load balancing, and determine an action to take during host maintenance. The DRS can also use the profile to determine which resources at the host to allocate to the workload, distributing higher portions to workloads with higher QoS profiles. Further, the DRS can factor in the profiles in determining total workload demand, leading to more efficient scaling of the cluster.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 21, 2021
    Inventors: Zhelong Pan, Matthew Kim, Varun S. Lingaraju
  • Publication number: 20200371845
    Abstract: Disclosed are various approaches to anticipating future resource consumption based on user sessions. A message comprising a prediction of a future number of concurrent user sessions to be hosted by a virtual machine within a predefined future interval of time is received. It is then determined whether the future number of concurrent user sessions will cause the virtual machine to cross a predefined resource threshold during the predefined future interval of time. Then, a message is sent to a first hypervisor hosting the virtual machine to migrate the virtual machine to a second hypervisor.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Yao Zhang, Olivier Alain Cremel, Zhelong Pan, Xunjia Lu
  • Patent number: 10768996
    Abstract: Disclosed are various approaches to anticipating future resource consumption based on user sessions. A message comprising a prediction of a future number of concurrent user sessions to be hosted by a virtual machine within a predefined future interval of time is received. It is then determined whether the future number of concurrent user sessions will cause the virtual machine to cross a predefined resource threshold during the predefined future interval of time. Then, a message is sent to a first hypervisor hosting the virtual machine to migrate the virtual machine to a second hypervisor.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 8, 2020
    Assignee: VMWARE, INC.
    Inventors: Yao Zhang, Olivier Alain Cremel, Zhelong Pan, Xunjia Lu
  • Publication number: 20200125419
    Abstract: Disclosed are various approaches to anticipating future resource consumption based on user sessions. A message comprising a prediction of a future number of concurrent user sessions to be hosted by a virtual machine within a predefined future interval of time is received. It is then determined whether the future number of concurrent user sessions will cause the virtual machine to cross a predefined resource threshold during the predefined future interval of time. Then, a message is sent to a first hypervisor hosting the virtual machine to migrate the virtual machine to a second hypervisor.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Yao Zhang, Olivier Alain Cremel, Zhelong Pan, Xunjia Lu
  • Publication number: 20200065126
    Abstract: Disclosed are various embodiments for distributing the load of a plurality of virtual machines across a plurality of hosts. A potential new host for a virtual machine executing on a current host is identified. A gain rate associated with migration of the virtual machine from the current host to the potential new host is calculated. A gain duration associated with migration of the virtual machine from the current host to the potential new host is also calculated. A migration cost for migration of the virtual machine from the current host to the potential new host, the migration cost being based on the gain rate and the gain duration is determined. It is then determined whether the migration cost is below a predefined threshold cost. Migration of the virtual machine from the current host to the optimal host is initiated in response to a determination that the migration cost is below the predefined threshold.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 27, 2020
    Inventors: Haoqiang Zheng, Fei Guo, Zhelong Pan