Determine the effective memory access time in terms

Assignment Help Computer Engineering

Reference no: EM132154648

Question :

1. A uniprocessor system uses a separate instruction and data caches with the hit ratios hi and hd, respectively.

The access time from the processor to either cache is c clock cycles, and the block is transfer time between the caches and main memory is b block cycles. Among all memory references made by the CPU, /7 is the percentage of the references to instructions.

Among blocks replaced in the data cache, fdir is the percentage of dirty blocks. Assuming a write-back policy, determine the effective memory access time in terms of hi, hd, c, b, fi, fdir for this memory system.

2. The processor memory system described in part (a) is used to construct a bus-based shared memory multiprocessor. Assume that the hit ratio and access time remain the same as in part (a).

However, the effective memory-access time will be different because every processor must now handle cache invalidations in addition to reads and writes.

Let find be the fraction of data references that cause invalidation signals to be sent to other caches.

The processor sending the invalidation signal requires i clock cycles to complete the invalidation process. Other processors are not involved in the invalidation.

Reference no: EM132154648

Questions Cloud

Write an sql statement to display data for all of the column : Write an SQL statement to display data for all of the columns. Provide a screenshot of the result as well.

Find the future value at the end of eight years : Solve each of the following problems and say which one is present value or future value problems.

How many simultaneous connections can be established : University obtains cable Internet access from some company. If we assume that each connection requires 200kbps when transmitting.

Always on profit maximisation motive : One of the ways in which they should increase profits would be cut cost where possible and increase interest charges. Do you agree? Discuss.

Determine the effective memory access time in terms : The access time from the processor to either cache is c clock cycles, and the block is transfer time between the caches and main memory is b block cycles.

Compare intelligence and simulated intelligence : Analyse the meanings of intelligence and simulated intelligence. Compare intelligence and simulated intelligence.

What methods of training will be used to train stakeholders : BSBINM501 Manage an information or knowledge management system Assessment, Elite Education Vocation Institute, Australia. Who will develop training materials

Construct an e-r diagram for the registrars office in crows : The enrollment of students in courses and grades awarded to students in each course they are enrolled for must be appropriately modeled.

What is the price of the stock today : If the required return is 13 percent, what is the price of the stock today? (Do not round intermediate calculations and round your answer to 2 decimal places)

User Account

All Pages