Arquitetura de Computadores
Consider three processors with different cache configurations:
Cache 1: Direct-mapped with one-word blocks
Cache 2: Direct-mapped with four-word blocks
Cache 3: Two-way set associative with four-word blocks
The following miss rate measurements have been made:
Cache 1: Instruction miss rate is 4%; data miss rate is 6%.
Cache 2: Instruction miss rate is 2%; data miss rate is 4%.
Cache 3: Instruction miss rate is 2%; data miss rate is 3%.
For these processors, one-half of the instructions contain a data reference. Assume that the cache miss penalty is 6 + Block size in words. The CPI for this workload was measured on a processor with cache 1 and was found to be 2.0. Determine which processor spend the most cycles on cache misses.
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Banco de Dados
A database used in an order-entry system is to contain information about customers, items, and orders. The following information is to be included:
For each customer:
- Customer number (unique)
- "Ship-to" addresses (several per customer)
- Balance
- Credit limit
- Discount
For each order:
- Heading information:
-- Customer number
-- Ship-to address
-- Date of order
- Detail lines (several per order):
-- Item number
-- Quantity ordered
For each item:
- Item number (unique)
- Manufacturing plants
- Quantity on hand at each plant
- Stock danger level for each plant
- Item description
For intemal processing reasons, a "quantity outstanding" value is associated with each detail line of each order: this value is initially set equal to the quantity of the item ordered and is progressively reduced to zero as partial shipments are made. Again, design a database for this data. As in the previous exercise, state any assumptions you make regarding dependencies.
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etc...
5 comentários:
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Boa sorte com suas 146786168741 páginas de tudo o que vc tem que ler...!!!
Beijo e parabens ao aluno Alex de Magalhães!!! jajaja
Ai amigo, boa sorte...
Não tem muito o que dizer, né?!
"/
God bless u.
Don't you give up.
Abraço.
Ah, e lembre-se: tá acabando!
;)
E ai!!...hoje podemos dizer com toda certeza...VALEU A PENA HEIN!!!
Beijos!
Aguardando atualizações!
;)
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