VMware, Palo Alto, Calif., has been Assigned a patent (8,250,586) developed by
Michael Nelson, Alamo, Calif., for a "high-performance virtual machine
abstract of the patent published by the U.S. Patent and Trademark Office states:
"A virtual machine (VM) runs on system hardware, which includes a physical
network interface device that enables transfer of packets between the VM and a
destination over a network. A virtual machine monitor (VMM) exports a hardware
interface to the VM and runs on a kernel, which forms a system software layer
between the VMM and the system hardware. Pending packets (both transmit and
receive) issued by the VM are stored in a memory region that is shared by, that
is, addressable by, the VM, the VMM, and the kernel. Rather than always
transferring each packet as it is issued, packets are clustered in the shared
memory region until a trigger event occurs, whereupon the cluster of packets is
passed as a group to the physical network interface device."
patent application was filed on Feb. 26, 2009 (12/393,231). The full-text of the
patent can be found at here.