Process for partially swapping real storage areas used by a prog

Details Process for partially swapping real storage areas used by a prog Process for partially swapping real storage areas used by a prog

1989-10-04

1994-03-08

Gossage, Glenn

Boots, shoes, and leggings

364DIG1, 36424611, 395400, 395650, G06F 1200, G06F 1300

Patent

active

052935990

ABSTRACT:
A process for partially swapping real storage areas used by a program is utilized in a computer system which executes programs by multiprogramming under control of a virtual storage type operating system. A first portion of a real storage area, allocated to a program to be swapped out, remains allocated to that program while the contents of a second portion of the real storage area are saved in an auxiliary storage so that the second portion is deallocated from that program. The saved contents of the second portion stored in the auxiliary storage are loaded in the real storage when the program is to be swapped in.

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patent: 4742447 (1988-05-01), Duvall et al.
patent: 4771375 (1988-09-01), Beglin et al.
patent: 4805097 (1989-02-01), De Sanna
patent: 4868738 (1989-09-01), Kish et al.
patent: 4916608 (1990-04-01), Shultz
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patent: 4967353 (1990-10-01), Brenner et al.
Beretuas et al, "Extended Swap Control for Paged Data", IBM TDB, vol. 25 No. 9, Feb. 1983, pp. 4529-4532.
Rosenfeld, "Information Processing", North Holland Publishing Co., Amsterdam, NL, 1974, pp. 235-241 by Opderbeck et al, "Performance of a Page Fault Frequency Replacement Algorithm in a Multiprogramming Environment".

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