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Accelerated Frame Replacement for Swap In Requests

IP.com Disclosure Number: IPCOM000051162D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue


Related People

Pierce, BR Saya, SF Svoboda, GE [+details]


In a virtual storage operating system such as MVS/System Product Release 3, where group page operations are used to swap users into and out of real storage frames to satisfy swap-in requests. This requirement can be quite variable depending on the system's swap rate and the number of pages in the user's working set. (A user's working set consists of those pages referenced during a variable length interval prior to swap out and all pages that were fixed in real storage at the time the user was swapped out.) The supply of available frames must be enough to also satisfy a normal load of single page-in requests (demand page-ins) from response-sensitive application programs.