Cache performance in an information handling system employing pa

Details Cache performance in an information handling system employing pa Cache performance in an information handling system employing pa

1989-08-09

1991-12-31

Shaw, Gareth D.

Boots, shoes, and leggings

364DIG1, 36424341, 364253, 3642543, 3642563, G06F 1206, G06F 1208

Patent

active

050778269

ABSTRACT:
A reduction in the number of cycles required to obtain data from main storage when a "miss" occurs in a cache for a desired line of data but a match to another line from the same page of data in main storage as the desired line is present in the cache. In accordance with the present invention if a match to another line from the same page is present, the real address for the other line from the same page is used to fetch the desired line of data directly from the main storage without an address translation. This technique works for a virtually addressed cache whose directory contains both a virtual and a real address for every line of data stored in the cache.

REFERENCES:
patent: 4441155 (1984-04-01), Fletcher
patent: 4495575 (1985-01-01), Eguchi
patent: 4612612 (1986-09-01), Woffinden
patent: 4737909 (1988-08-01), Harada
patent: 4785398 (1988-11-01), Joyce et al.
patent: 4797814 (1989-01-01), Brenza
patent: 4953073 (1990-08-01), Moussouris et al.
patent: 4985829 (1991-01-01), Thatte et al.
patent: 4991081 (1991-02-01), Bosshart

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