A program running on an AMD Barcelona has an instruction count of $2\mathrm{.}389$ e $12,$ an execution time of $750$ s and a reference time of $9650$s

Find the CPI if the clock cycle time is $0\mathrm{.}333ns$

Find the SPECratio

Find the increase in CPU time if the number of instructions is increased by $10\%$

Fine the increase in CPU time if the number of instructions is increased by $10\%$ and the CPI is increased by $5\%$

Find the change in the SPECratio for the change above

Suppose we have added a new instruction to the ISA such that the number of instructions is reduced by $15\%.$ The execution time is reduced to $700$ s$.$ The new SPECratio is $13\mathrm{.}7.$ Find the new CPI