ALEXANDRIA, Va., July 23 -- United States Patent no. 12,367,058, issued on July 22, was assigned to Red Hat Inc. (Raleigh, N.C.).

"Efficient disk cache management for virtual machines" was invented by Michael Tsirkin (Raleigh, N.C.), Andrea Arcangeli (Raleigh, N.C.) and Giuseppe Scrivano (Raleigh, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example system includes a memory, a processor in communication with the memory, and a hypervisor. The hypervisor is configured to store, as dirty memory, data from a virtual machine (VM) at least until the data is written back into a data storage. The hypervisor is also configured to assign a persistence setting for managing write back of the dirty memory of th...