Vmware, Inc.

Vmare, Inc.

Jean-Pascal Billaud

Ganesha Shanmuganathan

Ajay Gulati

Kalyan Saladi

A method, a non-transitory computer-readable storage medium, and a computer system for managing bandwidth allocated to a virtual machine running on a host computer is disclosed. In an embodiment, a method involves obtaining the current bandwidth for a virtual machine running on a host computer, determining bandwidth demand for the virtual machine as a function of the current bandwidth and a growth margin, and adjusting a bandwidth cap for the virtual machine based on the determined bandwidth demand. In an embodiment, when applied, the technique allows for bandwidth to be allocated to the virtual machines without the sum of allocated bandwidth exceeding a global bandwidth cap.

Method and system for determining bandwidth demand

Network bandwidth is allocated to virtual machines (VMs) according to a node hierarchy that includes a root node, intermediate nodes, and leaf nodes, wherein each leaf node represents a queue of packet transmission requests from a VM and each intermediate node represents a grouping of leaf queues. As VMs generate requests to transmit packets over the network, the network bandwidth is allocated by queuing packets for transmission in the leaf nodes, and selecting a leaf node from which a packet is to be transmitted based on tracking data that represent how much network bandwidth has been allocated to the nodes. Upon selecting the leaf node, the tracking data of the selected leaf node and the tracking data of an intermediate node that is a parent node of the selected leaf node are updated, and a command to transmit the packet of the selected leaf node is issued.

Growing community of inventors

Walnut Creek, CA, United States of America

Jean-Pascal Billaud