Which is wrong about virtual memory: o Swapping when there is no hit in main memory o A page fault occurs when there is no hit in main memory o Virtual address mapped into actual address by mapper O All are not correct

Which is wrong about virtual memory: o Swapping when there is no hit in main memory o A page fault occurs when there is no hit in main memory o Virtual address mapped into actual address by mapper O All are not correct

Name: Which is wrong about virtual memory:o Swapping when there is no hit in
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Description: Which is wrong about virtual memory:o Swapping when there is no hit in main memoryo A page fault occurs when there is no hit in main memory o Virtual address mapped into actual address by mapper O All are not correct

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter11: Operating Systems

Section: Chapter Questions

Problem 2VE

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The write buffer will return a block to main memory while the CPU submits a cache-unmet request. What may happen next?
If a block is being sent back to main memory from the write buffer, what should happen if a processor makes a cache-unfulfilled request?
Which of the following miss is definite to occur in cache memory? Compulsory miss Capacity miss Conflict miss All of these
Code a descriptor that describes a memory segment that begins at location AB208000H and ends at location AC20AFFFH. The memory segment is a data segment that grows upward and can be written. The instruction used is a 32-bit size. it is assumed that the privilege level of the segment was set at 2nd highest and that the segment has not been accessed. NEED ASAP!!!
When a block is being sent back to main memory from the write buffer, what should happen if the processor sends a cache-unfulfilled request?
In a main memory-disk virtual storage system, the page size is 1KByte and the FIFO algorithm is used for page replacements. A given program has been allocated three page frames in the main memory and it makes the following 16 memory references when it starts executing (the addresses are given in decimal):500, 2000, 2500, 800, 4000, 1000, 5500, 1500, 2800, 400, 5000, 700, 2100, 3500, 900, 2400 Fill in the contents of the three page frames after each memory reference in a table and calculate the hit ratio. Hint: denote by 'a' the page consisting of locations 0 through 1023 in memory. Similarly, b: 1024-2047, c: 2048-3071, d: 3072-4095, e: 4096-5119 and f: 5120-6143. Round to three decimal places.
1. Windows The hypothetical machine of has two I/O instructions: 0011 Load AC from I/O 0011 Store ÁC to I/O In these cases, the 12-bit address identifies a particular I/O device. Show the program execution for the following program: Load AC from device 68. Add contents of memory location 326. Store AC to device 69. Assume that the next value retrieved from device 68 is 10 and that location 326 contains a value of 35 Windows The hypothetical machine of has two I/C 0011 Load AC from I/O 0011 Store AC to I/O In these cases, the 12-bit address identifies a parti execution for the following program:4 Load AC from device 68. Add contents of memory location 326. Store AC to device 69. Assume that the next value retrieved from devi contains a value of 35. 여기에 질문을 입력하거나 붙여 넣으세요.
If a CPU makes a cache-unfulfilled request while a block is being flushed from the write buffer back to main memory, should something happen?
A request that cannot be satisfied in the cache is issued by the processor while the write buffer returns a block to main memory. What should happen in this case?
Code a descriptor that describes a memory segment that begins at location 0005CF00h and ends at location 00060EFFh. The memory segment is a data segment that grows upward in the memory system and can be written. The segment has a user level privilege (lowest) and has not been accessed. The descriptor is for an 80386 microprocessor.
What should happen if a CPU issues a cache-unfulfilled request while a block is being flushed from the write buffer back to main memory?