1
Keith E Duvall, Anthony D Hooten: Method to control I/O accesses in a multi-tasking virtual memory virtual machine type data processing system. International Business Machines Corporation, Richard E Cummins, May 3, 1988: US04742447 (113 worldwide citation)

A method for accessing information in a page segmented virtual memory data processing system in which virtual machines running UNIX type operating systems are concurrently established, and in which a memory manager controls the transfer of information between primary and secondary storage devices in ...


2
Keith E Duvall, Anthony D Hooten, John C O Quin III, Todd A Smith: Method to automatically increase the segment size of unix files in a page segmented virtual memory data processing system. International Business Machines Corporation, Richard E Cummins, August 2, 1988: US04761737 (73 worldwide citation)

A memory management system method increases the size of a segment in blocks of 64K virtual pages in response to the system detecting that the requested page has been protected. The conventional UNIX type System Calls create and open files in virtual memory. All pages are protected "read only" until ...


3
Keith E Duvall, Anthony D Hooten, Larry K Loucks: Method to share copy on write segment for mapped files. International Business Machines Corporation, Richard E Cummins, May 3, 1988: US04742450 (50 worldwide citation)

A method for facilitating the interchange of data in a UNIX* file between two UNIX processes being run concurrently on two virtual machines in a page segmented virtual memory virtual machine type data processing system. A Shared Copy-On-Write (SCOW) command is created for the UNIX type operating sys ...