公开(公告)号：US20230289207A1

公开(公告)日：2023-09-14

申请号：US18317827

申请日：2023-05-15

Applicant: VMware, Inc.

Inventor： Xunjia Lu ,  Bi Wu ,  Petr Vandrovec ,  Haoqiang Zheng

IPC: G06F9/455 ,  G06F9/445 ,  G06F9/50 ,  G06F12/02

CPC classification number: G06F9/45558 ,  G06F9/44505 ,  G06F9/5077 ,  G06F12/0238 ,  G06F2212/2542 ,  G06F2009/45591 ,  G06F2009/45583 ,  G06F2209/5022

Abstract: Techniques for concurrently supporting virtual non-uniform memory access (virtual NUMA) and CPU/memory hot-add in a virtual machine (VM) are provided. In one set of embodiments, a hypervisor of a host system can compute a node size for a virtual NUMA topology of the VM, where the node size indicates a maximum number of virtual central processing units (vCPUs) and a maximum amount of memory to be included in each virtual NUMA node. The hypervisor can further build and expose the virtual NUMA topology to the VM. Then, at a time of receiving a request to hot-add a new vCPU or memory region to the VM, the hypervisor can check whether all existing nodes in the virtual NUMA topology have reached the maximum number of vCPUs or maximum amount of memory, per the computed node size. If so, the hypervisor can create a new node with the new vCPU or memory region and add the new node to the virtual NUMA topology.

公开(公告)号：US11431788B2

公开(公告)日：2022-08-30

申请号：US17208284

申请日：2021-03-22

Applicant: VMware, Inc.

Inventor： Badhrinath Sampathkumar ,  Zhelong Pan ,  Haoqiang Zheng ,  Fei Guo ,  Sabareesh Subramaniam

IPC: H04L43/16 ,  H04L67/1008 ,  H04L67/1023 ,  H04L41/0896 ,  H04L43/0817

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.

公开(公告)号：US10860356B2

公开(公告)日：2020-12-08

申请号：US15645469

申请日：2017-07-10

Applicant: VMware, Inc.

Inventor： Haoqiang Zheng ,  Lenin Singaravelu ,  Shilpi Agarwal ,  Daniel Michael Hecht ,  Garrett Smith

IPC: G06F9/455 ,  G06F9/50 ,  G06F13/24 ,  G06F9/48 ,  H04L12/875 ,  H04L12/26 ,  H04L12/927

Abstract: A host computer has a plurality of containers including a first container executing therein, where the host also includes a physical network interface controller (NIC). A packet handling interrupt is detected upon receipt of a first data packet associated with the first container. If the first virtual machine is latency sensitive, then the packet handling interrupt is processed. If the first virtual machine is not latency sensitive, then the first data packet is queued and and processing of the packet handling interrupt is delayed.

公开(公告)号：US10691495B2

公开(公告)日：2020-06-23

申请号：US16045075

申请日：2018-07-25

Applicant: VMware, Inc.

Inventor： Xunjia Lu ,  Haoqiang Zheng ,  Bi Wu

IPC: G06F9/50 ,  G06F9/455 ,  G06F9/48

Abstract: The disclosure provides techniques for scheduling a jitterless workload on a virtual machine (VM) executing on a host comprising one or more pCPUs comprising a first subset of the one or more pCPUs and a second subset of the one or more pCPUs. The techniques further include creating a jitterless zone, wherein the jitterless zone includes the first subset of the one or more pCPUs. The techniques further include determining whether a vCPU of the VM is used to execute a jitterless workload or a non-jitterless workload. The techniques further include allocating by a CPU scheduler to the vCPU at least one of the pCPUs in the jitterless zone when the vCPU of the VM is used to execute a jitterless workload. The techniques further include scheduling the jitterless workload for execution by the vCPU on the allocated at least one of the pCPUs in the jitterless zone.

公开(公告)号：US20200059513A1

公开(公告)日：2020-02-20

申请号：US16527111

申请日：2019-07-31

Applicant: VMware, Inc.

Inventor： Badhrinath Sampathkumar ,  Zhelong Pan ,  Haoqiang Zheng ,  Fei Guo ,  Sabareesh Subramaniam

IPC: H04L29/08 ,  H04L12/26 ,  H04L12/24

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.

公开(公告)号：US10382535B2

公开(公告)日：2019-08-13

申请号：US15286106

申请日：2016-10-05

Applicant: VMware, Inc.

Inventor： Badhrinath Sampathkumar ,  Zhelong Pan ,  Haoqiang Zheng ,  Fei Guo ,  Sabareesh Subramaniam

IPC: H04L12/26 ,  H04L29/08

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.

公开(公告)号：US09552216B2

公开(公告)日：2017-01-24

申请号：US14468138

申请日：2014-08-25

Applicant: VMware, Inc.

Inventor： Haoqiang Zheng ,  Lenin Singaravelu ,  Shilpi Agarwal ,  Daniel Michael Hecht ,  Garrett Smith

IPC: G06F9/455 ,  H04L12/875 ,  H04L12/26 ,  H04L12/927 ,  G06F13/24 ,  G06F9/50

CPC classification number: G06F9/4812 ,  G06F9/45533 ,  G06F9/45558 ,  G06F9/4887 ,  G06F9/50 ,  G06F9/5027 ,  G06F9/5033 ,  G06F9/5088 ,  G06F13/24 ,  G06F2009/4557 ,  G06F2009/45575 ,  G06F2009/45591 ,  G06F2209/5017 ,  H04L43/0894 ,  H04L43/16 ,  H04L47/56 ,  H04L47/801

Abstract: A host computer has a plurality of virtual machines executing therein under the control of a hypervisor, where the host also includes a physical network interface controller (NIC). An interrupt controller detects an interrupt generated by the physical NIC, where the interrupt corresponds to a virtual machine. If the virtual machine has exclusive affinity to one or more physical central processing units (CPUs), then the interrupt is forwarded to the virtual machine. If the virtual machine does not have exclusive affinity, then a process in the hypervisor is invoked to forward the interrupt to the virtual machine.

Abstract translation: 主机在管理程序的控制下具有执行其中的多个虚拟机，其中主机还包括物理网络接口控制器（NIC）。 中断控制器检测由物理NIC产生的中断，其中中断对应于虚拟机。 如果虚拟机对一个或多个物理中央处理单元（CPU）具有独占性，则将中断转发到虚拟机。 如果虚拟机没有独占关系，则调用管理程序中的进程以将中断转发到虚拟机。

公开(公告)号：US11036555B2

公开(公告)日：2021-06-15

申请号：US16045062

申请日：2018-07-25

Applicant: VMware, Inc.

Inventor： Xunjia Lu ,  Haoqiang Zheng ,  Bi Wu

IPC: G06F9/48 ,  G06F9/50 ,  G06F9/455 ,  H04L12/24

Abstract: The disclosure provides a method of performing a workload on a virtual machine (VM) executing on a host comprising one or more physical central processing units (pCPUs) is provided. The method further includes setting a quality of service (QoS) metric associated with the VM, the QoS metric indicating a time period. The method further includes setting a bandwidth metric associated with the VM, the bandwidth metric indicating a percentage. The method further includes allocating by a central processing unit (CPU) scheduler to a virtual CPU (vCPU) of the VM one of the one or more pCPUs periodically every time period, wherein for every time period the one of the one or more pCPUs is allocated to the vCPU for a duration that is the percentage of the time period based on the QoS metric and the bandwidth metric. The method further includes executing the workload on the virtual machine with the vCPU according to the allocation of the one or more pCPUs.

公开(公告)号：US10073711B2

公开(公告)日：2018-09-11

申请号：US15097035

申请日：2016-04-12

Applicant: VMware, Inc.

Inventor： Haoqiang Zheng ,  Lenin Singaravelu ,  Shilpi Agarwal ,  Daniel Michael Hecht ,  Garrett Smith

IPC: G06F9/455 ,  H04L12/875 ,  H04L12/26 ,  H04L12/927 ,  G06F9/50 ,  G06F13/24 ,  G06F9/48

CPC classification number: G06F9/45558 ,  G06F9/45533 ,  G06F9/4812 ,  G06F9/4887 ,  G06F9/50 ,  G06F9/5027 ,  G06F9/5033 ,  G06F9/5088 ,  G06F13/24 ,  G06F2009/4557 ,  G06F2009/45575 ,  G06F2009/45591 ,  G06F2209/5017 ,  H04L43/0894 ,  H04L43/16 ,  H04L47/56 ,  H04L47/801

Abstract: A host computer has a virtualization software that supports execution of a plurality of virtual machines, where the virtualization software includes a virtual machine monitor for each of the virtual machines, and where each virtual machine monitor emulates a virtual central processing unit (CPU) for a corresponding virtual machine. A virtual machine monitor halts execution of a virtual CPU of a virtual machine by receiving a first halt instruction from a corresponding virtual machine and determining whether the virtual machine is latency sensitive. If the virtual machine is latency sensitive, then a second halt instruction is issued from the virtual machine monitor to halt a physical CPU on which the virtual CPU executes. If the virtual machine is not latency sensitive, then a system call to a kernel executing on the host computer is executed to indicate to the kernel that the virtual CPU is in an idle state.

公开(公告)号：US09703589B2

公开(公告)日：2017-07-11

申请号：US14468181

申请日：2014-08-25

Applicant: VMware, Inc.

Inventor： Haoqiang Zheng ,  Lenin Singaravelu ,  Shilpi Agarwal ,  Daniel Michael Hecht ,  Garrett Smith

IPC: G06F9/455 ,  H04L12/875 ,  H04L12/26 ,  H04L12/927 ,  G06F13/24 ,  G06F9/50

CPC classification number: G06F9/4812 ,  G06F9/45533 ,  G06F9/45558 ,  G06F9/4887 ,  G06F9/50 ,  G06F9/5027 ,  G06F9/5033 ,  G06F9/5088 ,  G06F13/24 ,  G06F2009/4557 ,  G06F2009/45575 ,  G06F2009/45591 ,  G06F2209/5017 ,  H04L43/0894 ,  H04L43/16 ,  H04L47/56 ,  H04L47/801

Abstract: A host computer has a plurality of containers including a first container executing therein, where the host also includes a physical network interface controller (NIC). A packet handling interrupt is detected upon receipt of a first data packet associated with the first container If the first virtual machine is latency sensitive, then the packet handling interrupt is processed. If the first virtual machine is not latency sensitive, then the first data packet is queued and processing of the packet handling interrupt is delayed.