Microsoft Technology Licensing, LLC

Gopikrishna Kannan

Hari R Pulapaka

Benjamin M Schultz

Harish Srinivasan

Margarit Simeonov Chenchev

Vijayan Ramakrishnan

Graham Wong

Girish Manoharlal Motwani

Sudeep Shrikrishna Patwardhan

Arup Roy

A method for measuring latency of a data packet attributable to transit of the data packet through a distributed gateway includes transmitting, from a first virtual machine of a plurality of virtual machines executing different instances of a gateway, a ping request to each of the other virtual machines. A ping reply is received at the first virtual machine in association with each of the transmitted ping requests, and the first virtual machine measures a round-trip transit (RTT) time between transmission of each one of the ping requests and receipt of the corresponding ping response. The method further provides for publishing a latency statistic for the distributed gateway that is generated based on an aggregation of the RTT times measured by the first virtual machine.

Latency monitoring and reporting for distributed gateways

A virtualization partition (VP) is executed by a virtualization layer. The VP contains guest software that executes in isolation within the VP. The guest software has a background task (BT) that needs to be performed in the future. The BT is virtualized by a BT service that executes outside of the VP. The guest software registers the BT, through the virtualization layer, with a BT virtualization service. An event occurs outside of the VP that triggers the BT. The BT virtualization service responds to the event by assuring that the VP is available (executing), and optionally triggers (possibly indirectly) the execution of code in the application.

Virtualized background activations

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Gopikrishna Kannan