Google Inc.

David Alan Dillow

Prashant R Chandra

Joseph Raymond Michael Zbiciak

Horacio Andres Lagar Cavilla

Shrijeet Subhabrata Mukherjee

Shrijeet Mukherjee

Systems and methods of tracking page state changes are provided. An input/output is communicatively coupled to a host having a memory. The I/O device receives a command from the host to monitor page state changes in a region of the memory allocated to a process. The I/O device, bypassing a CPU of the host, modifies data stored in the region based on a request, for example, received from a client device via a computer network. The I/O device records the modification to a bitmap by setting a bit in the bitmap that corresponds to a location of the data in the memory. The I/O device transfers contents of the bitmap to the CPU, wherein the CPU completes the live migration by copying sections of the first region indicated by the bitmap to a second region of memory. In some implementations, the process can be a virtual machine, a user space application, or a container.

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San Jose, CA, United States of America

David Alan Dillow