Reactive throttling of heterogeneous migration sessions in a virtualized cloud environment

A computer system for throttling a plurality of heterogeneous migration sessions running concurrently in a virtualized cloud computing environment and sharing a same set of resources, wherein each heterogeneous migration session is characterized by a type of function performed and a value that is attained by performing the migration session, the computer system comprising:

• at least one processing unit;
• memory operably associated with the at least one processing unit;
• and
• a heterogeneous migration sessions throttling tool storable in memory and executable by the at least one processing unit, the tool comprising:
• a monitoring component that monitors the virtualized cloud computing environment for latency at any resource in the virtualized cloud computing environment while performing the plurality of heterogeneous migration sessions, said plurality of heterogeneous migration sessions being initiated by at least one cloud administrator;
• an identification component that identifies an input/output (I/O) path to any resource in the virtualized cloud environment computing that is experiencing excessive I/O latency, the identification component further configured to determine a resource along the I/O path that is a bottleneck to the excessive I/O latency;
• a virtual-to-physical resource mapping component containing virtual-to-physical resource mapping information of resources in the virtualized cloud computing environment that uses the mapping information to obtain a list of the heterogeneous migration sessions contributing to the bottleneck at the identified I/O path, wherein a migration type, a completion benefit, and a bottleneck contribution portion for each heterogeneous migration session is used to determine a priority of contribution to the bottleneck;
• and
• a throttling component that throttles a migration rate of each heterogeneous migration session in the list of heterogeneous migration sessions in an amount that corresponds to the migration type, the completion benefit that is attained by performing the migration session and the bottleneck contribution portion designating a quantity that the migration session contributes to the bottleneck at the identified I/O path.

A computer usable memory storing computer instructions, which when executed, enables a computer system to throttle a plurality of heterogeneous migration sessions running concurrently in a virtualized cloud computing environment and sharing a same set of resources, the executed computer instructions causing the computer system to perform a method comprising:

• initiating the plurality of heterogeneous migration sessions in a virtualized cloud computing environment, wherein each heterogeneous migration session is initiated by at least one cloud administrator and characterized by a type of function performed by the migration session and a value that is attained by performing the migration session;
• monitoring the virtualized cloud computing environment for latency at any resource in the virtualized cloud computing environment while performing the plurality of heterogeneous migration sessions;
• identifying an input/output (I/O) path to any resource in the virtualized cloud environment computing that is experiencing excessive resource congestion I/O latency;
• determining a resource along the I/O path that is a bottleneck to the excessive resource congestion I/O latency;
• using virtual-to-physical resource mapping information of resources in the virtualized cloud computing environment to obtain a list of the heterogeneous migration sessions contributing to the bottleneck at the identified I/O path, wherein a migration type, a completion benefit, and a bottleneck contribution portion for each heterogeneous migration session is used to determine a priority of contribution to the bottleneck;
• and
• throttling a migration rate of each heterogeneous migration session in the list of heterogeneous migration sessions in an amount that corresponds to the migration type, the completion benefit that is attained by performing the migration session and the bottleneck contribution portion designating a quantity that the migration session contributes to the bottleneck at the identified I/O path.