Showing papers on "Cache published in 1968"

Structural aspects of the system/360 model 85: II the cache

Abstract: The cache, a high-speed buffer establishing a storage hierarchy in the Model 85, is discussed in depth in this part, since it represents the basic organizational departure from other SYSTEM/360 computers. Discussed are organization and operation of the cache, including the mechanisms used to locate and retrieve data needed by the processor. The internal performance studies that led to use of the cache are described, and simulated performance of the chosen configuration is compared with that of a theoretical system having an entire 80-nanosecond main storage. Finally, the effects of varying cache parameters are discussed and tabulated.

Structural aspects of the system/360 model 85: I general organization

Abstract: A basic design objective for the Model 85 was to add a computer to the SYSTEM/360 line that offers high performance over a wide range of job types Simulation studies indicate that the Model 85 will provide an average three- to five-fold increase in internal performance with main storage capacities of up to four million bytes This part of the paper discusses the major elements of the Model 85 within the architectural context of SYSTEM/360, including the addition of a high-speed buffer, called a cache Also summarized are the simulation studies that led to use of the cache, selection of its parameters, and verification of internal performance of the system