G - Physics – 06 – F
Patent
G - Physics
06
F
354/230.6
G06F 12/08 (2006.01)
Patent
CA 1283487
ABSTRACT OF THE DISCLOSURE A method and apparatus for determining which programme will utilise a rapid access memory in a computer working with a plurality of programmes and having a conventional slow access memory and a rapid access memory are described. During a test period there is registered for each programme the number of in- structions in the programme requiring access to the memory, this number being divided by the whole memory space required by a pro- gramme, the quotients formed after each other in this way being compared with each other and for the programme with the highest quotient the memory content is transferred from the slow access memory to the rapid access memory. For each programme there is registered with the aid of a counter the number of instructions requiring access to the slow access memory. This number is divided with the aid of a measuring circuit by the entire memory space for the respective programme noted in a space memory. For the programme with the highest quotient the memory content is transferred from the relatively slow access memory to the rapid access memory. An address memory is arranged, and for the pro- gramme information transferred from the slow access memory to the rapid access memory the address memory reads out the starting address of the programme information in the rapid access memory on addressing a starting address in the slow access memory.
539256
Egeland Terje
Friman Erik Bertil
Johnson Sten Edward
Sundell Hans Enar
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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