Question Question $2$

A program takes $10$ seconds to run on a machine with a $10MHz$ clock rate. The same

program takes $3$ seconds to run on a $20MHz$ machine with an identical ISA and a

floating point accelerator.

a$)$ If $55\%$ of the time is spent executing floating point instructions on the $10MHz$

machine, by how much does the accelerator speed up these instructions?

b$)$ How much does the accelerator speed up these instructions if $25\%($instead of

$55\%)$ of the time is spent executing floating point instructions on the machine

with $10MHz$ clock rate?$2$

A program takes $10$ seconds to run on a machine with a $10$ MHz clock rate. The same program takes $3$ seconds to run on a $20$ MHz machine with an identical ISA and a floating point accelerator.

a$)$ If $55\%$ of the time is spent executing floating point instructions on the $10$ MHz machine, by how much does the accelerator speed up these instructions?

b$)$ How much does the accelerator speed up these instructions if $25\%($instead of $55\%)$ of the time is spent executing floating point instructions on the machine with $10$ MHz clock rate?