- Consider a system with a single-level split cache (D-cache and I-cache). In total, 50% of all instructions are load-store instructions. Out of 1,000,000 ten instructions fetched, 30,000 ten are missed in the I-Cache, and 20,000 ten are missed in the D-Cache.
1) What is the I-cache miss rate? Express your answer as a percentage.
2) What is the D-cache miss rate? Express your answer as a percentage.
- Suppose Consider a disc with the following characteristics.
A sector size of 512 bytes
2000 tracks per surface
40 sectors per track
10 one-sided platters
Average seek-time=10 msec
- A) If the disk platters rotate at 6400 revolutions per minute (rpm), what is the maximum rotational latency (i.e., the maximum time, in seconds, required for a full rotation of a platter)?
- B) If one track of data can be transferred per revolution (i.e., one rotation of a platter), what is the transfer rate (how many bytes are transferred per unit of time)?
- we have a magnetic disk with the following parameters:
Average seek time = 12 ms
Rotation rate = 7200 RPM
Transfer rate = 150 MB/second
Sector size = 512 bytes
Controller overhead = 2 ms
What is the average time to read a single sector?
