Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Patent
1993-04-13
1998-12-01
Von Buhr, Maria N.
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
395678, G06F 1516, G06F 1208
Patent
active
058453253
ABSTRACT:
Hardware and software improvements in workstations which utilize virtual addressing in multi-user operating systems with write back caches, including operating systems which allow each user to have multiple active processes. In virtual addressing, multi-user workstations, system performance may be improved significantly by including a virtual address write back cache as one of the system elements. Data protection and the reassignment of virtual addresses are supported within such a system as well. Multiple active processes, each with its own virtual address space, and an operating system shared by those processes in a manner which is invisible to user programs. Cache "Flush" logic is used to remove selected blocks from the virtual cache when virtual addresses are to be reassigned.
REFERENCES:
patent: B452138 (1976-03-01), Nagashima
patent: 4426682 (1984-01-01), Riffe et al.
patent: 4654819 (1987-03-01), Stiffler et al.
patent: 4677546 (1987-06-01), Freeman et al.
patent: 4700330 (1987-10-01), Altman et al.
patent: 4713755 (1987-12-01), Worley, Jr. et al.
patent: 4783736 (1988-11-01), Ziegler et al.
patent: 4794521 (1988-12-01), Ziegler et al.
patent: 4819154 (1989-04-01), Stiffler et al.
patent: 5010475 (1991-04-01), Hazawa
Computer Design, vol. 26, No. 14, Aug. 1987, Littleton, Massachusetts, U.S., pp. 89-94, Author: W. Van Loo, Title: `Maximize Performance by Choosing Best Memory`, *the entire document*.
Electronique Industrielle, No. 6, Oct. 1986, Paris, France pp. 27-28, Author: C. Gay, Title: `Les Concepts de Memoire Virtuelle` *p. 35, col. 3, line 12--p. 37, col. 2, line 21; FIGS. 10,11*.
Cheng Ray
Garner Robert
Joy William
Loo William Van
Moran Joseph
Sun Microsystems Inc.
Von Buhr Maria N.
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