Now suppose we measure the code for the same program from two different

complers and obtain the following data:

Assume that the coumputer's clock rate is $4CH?$

$($a$)$ Which c$$milur will execufe faster according fo CPV execution time?

$($b$)$ Which compiler will execute faster according to MIPS? $($a$)$ answer is:

A$.$

CPU Time$1=2\mathrm{.}5$ s

CPU Time$2=3\mathrm{.}75$ s

Compiler $1$ is faster than Compiler $2$ according to CPU Time

B$.$

CPU Time$1=4$ s

CPU Time$2=3$ s

Compiler $2$ is faster than Compiler $1$ according to CPU Time

C$.$

CPU Time$1=10$ s

CPU Time$2=15$ s

Compiler $1$ is faster than Compiler $2$ according to CPU Time

D$.$

CPU Time$1=3\mathrm{.}5$ s

CPU Time$2=2\mathrm{.}75$ s

Compiler $2$ is faster than Compiler $1$ according to CPU Time

$($b$)$ answer is:

A$.$

MIPS$1=1\mathrm{.}428$

MIPS$2=1\mathrm{.}25$

Compiler $1$ is faster than Compiler $2$ according to MIPS

B$.$

MIPS$1=2800\mathrm{.}14$

MIPS$2=3200$

Compiler $2$ is faster than Compiler $1$ according to MIPS

C$.$

MIPS$1=2\mathrm{.}8$

MIPS$2=3\mathrm{.}2$

Compiler $2$ is faster than Compiler $1$ according to MIPS

D$.$

MIPS$1=4000$

MIPS$2=3800$

Compiler $1$ is faster than Compiler $2$ according to MIPS