Vmware, Inc.

Antecea, Inc.

Anurekh Saxena

Yury Baskakov

Arunachalam Ramanathan

Hariharan Subramanian

Ying Yu

Rajesh Venkatasubramanian

Edward Joseph Goggin

Sanjana Aswani

Adam M Belay

Michael Robert Stunes

David A Dunn

Gabriel Tarasuk-Levin

Jeffrey W Sheldon

Frederick Joseph Jacobs

Tejasvi Aswathanarayana

Yanlei Zhao

Sreekanth Setty

Joseph Rafail

Giritharan Rashiyamany

A virtual machine (VM) is migrated from a source host to a destination host in a virtualized computing system, the VM having a plurality of virtual central processing units (CPUs). The method includes copying, by VM migration software executing in the source host and the destination host, memory of the VM from the source host to the destination host by installing, at the source host, write traces spanning all of the memory and then copying the memory from the source host to the destination host over a plurality of iterations; and performing switch-over, by the VM migration software, to quiesce the VM in the source host and resume the VM in the destination host. The VM migration software installs write traces using less than all of the virtual CPUs, and using trace granularity larger than a smallest page granularity.

Memory copy during virtual machine migration in a virtualized computing system

A method of preserving the contiguity of large pages of a workload during migration of the workload from a source host to a destination host includes the steps of: detecting at the destination host, receipt of a small page of zeros from the source host, wherein, at the source host, the small page is part of one of the large pages of the workload; and upon detecting the receipt of the small page of zeros, storing, at the destination host, all zeros in a small page that is part of one of the large pages of the workload.

Preserving large pages of memory across live migrations of workloads

A method of populating page tables of an executing workload during migration of the executing workload from a source host to a destination host includes the steps of: before resuming the workload at the destination host, populating the page tables of the workload at the destination host, wherein the populating comprises inserting mappings from virtual addresses of the workload to physical addresses of system memory of the destination host; and upon completion of populating the page tables, resuming the workload at the destination host.

Prepopulating page tables for memory of workloads during live migrations

A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine. After transferring the state information to source computing machine memory associated with a virtualization intermediary, resuming transmission of requests from locations of the request queue indicated by the state information to the PF; and transmitting the requests from the PF to the physical storage.

Live migration of virtual machine during direct access to storage over SR IOV adapter

A software-implemented method which allows the streaming of applications from a server or cluster of server to one or more clients, typically mobile devices. The invention also enables the sharing, through a social network cloud service, of applications located on connected computers or on the cloud. When applications are streamed to mobile devices, the user interface of the application may be modified to fit the native user interface of the device.

Server aggregated application streaming

Growing community of inventors

Cambridge, MA, United States of America

Anurekh Saxena