A system with a 16M x 8 main memory has an 8G x 4K virtual memory and will require ___ bits for each virtual address, ___ bits for each physical address, and ___ bits for the offset in both addresses.
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A system with a 16M x 8 main memory has an 8G x 4K virtual memory and will require ___ bits for each virtual address, ___ bits for each physical address, and ___ bits for the offset in both addresses.
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- If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the fetch cycle is 40% of the processor cycle time, what memory access speed is required to implement load operations with zero wait states and load operations with two wait states?Processor R is a 64-bit RISC processor with a 2 GHz clock rate. The average instruction requires one cycle to complete, assuming zero wait state memory accesses. Processor C is a CISC processor with a 1.8 GHz clock rate. The average simple instruction requires one cycle to complete, assuming zero wait state memory accesses. The average complex instruction requires two cycles to complete, assuming zero wait state memory accesses. Processor R can’t directly implement the complex processing instructions of Processor C. Executing an equivalent set of simple instructions requires an average of three cycles to complete, assuming zero wait state memory accesses. Program S contains nothing but simple instructions. Program C executes 70% simple instructions and 30% complex instructions. Which processor will execute program S more quickly? Which processor will execute program C more quickly? At what percentage of complex instructions will the performance of the two processors be equal?A memory system has 4 KB byte-addressable main memory and a direct-mapped cache that consists of 8 blocks with 16 bytes per block. The following shows the main memory address format that allows us to map addresses from main memory to cache. Note: 12 bit address, 4 bit offset, 3 bit $block, and 5 bit tag Assume the cache directory shown below:
- An operating system designed for an embedded system application needs to manage a process of size 512KB with a page size of 8KB. If the memory size is 256KB then answer the following questions - a) Determine the minimum number of bits required to manage the logical address space. b) Determine the minimum number of bits required to manage the physical address space.What distinguishes a 7CH bit address from a 7CH byte address? Where in memory does bit address 7CH reside?Suppose a computer using fully associative cache has 216 bytes of byte-addressable main memory and a cache of 64 blocks, where each cache block contains 32 bytes.Q.) To which cache block will the memory address 0xF8C9 map?
- Virtual memory requires a physical addresses A to map virtual addresses to actualWhat is the difference between a 7CH bit address and a 7CH byte address? Where in memory does bit address 7CH reside?Assume having a memory building block of 4K byte (A byte at each location). It is desire to use this memory building block in a computer system with 16-bit wide address bus and 16-bit wide Data Bus. Assume this computer uses byte addressing. D Question 19 What is the minimum size memory in byte that this computer system can have
- Suppose that a 64M x 16 main memory is built using 512K × 8 RAM chips and memory is word-addressable. a) How many RAM chips are necessary?b) If we were accessing one full word, how many chips would be involved?c) How many address bits are needed for each RAM chip?d) How many banks will this memory have?e) How many address bits are needed for all of memory?f) If high-order interleaving is used, where would address 32(base 10) be located? (Your answer should be "Bank#, Offset#")g) Repeat (f) for low-order interleaving.Os759A 32-bit computer has a memory of 256 KB and a cache line size of 64 bytes. The memory cache access time is 5ns. This cache is 4-way associative and use LRU as a replacement algorithm. a) What is the number of lines and sets of this memory cache? b) What is the block size transferred between the cache memory and the main memory? c) If the time to transfer a line to cache memory is 200 ns, what is the hit ratio needed to obtain an average access time of 20 ns?