1. In realization of control unit

2. In operating system

3. In high-level language support

4. In microdiagnostics

5. In user tailoring

6. In emulation

1. Sequential execution time

2. Parallel execution time

3. Speed-up

4. Efficiency

5. Clocks Per Instruction (CPI)

6. Million Instruction Per Second (MIPS)

7. Million Floating point Instructions per second (MFLOPS)

8. Throughput

9. Scalability

1

1.00 (baseline)

sequential

potentially O(N) parallelizable

sequential

2

4 (in sequential) 3 (in this case) = 1.33

sequential

core 1

sequential

core 2

4

4 (in sequential) 2.6 (in this case) = 1.60

sequential

core 1

core 2

core 3

core 4

sequential

8

4 (in sequential) 2 (in this case) = 2.00

sequential

sequential

Processors

Speedup

Ideal speedup

Amdahl's Law