$($b$)$ Consider a processor with following data:

$\backslash$table$[[\backslash$table$[[$Base$],[$CPI$,$ No$],[$Memory$],[$Stalls$]],\backslash$table$[[$Processor$],[$Speed$]],\backslash$table$[[$Main$],[$Memory$],[$Access$],[$Time$]],\backslash$table$[[$First Level$],[$Cache$],[$MissRate$],[$per$],[$Instruction$]],\backslash$table$[[$Second$],[$Level$],[$Cache$,],[$Direct$-],[$Mapped$],[$Speed$]],\backslash$table$[[$Local$],[$Miss$],[$Rate$],[$with$],[$Second$],[$Level$],[$Cache$,],[$Direct$-],[$Mapped$]],\backslash$table$[[$Second$],[$Level$],[$Cache$,],[$Eight$-$Way$],[$Set$],[$Associative$],[$Speed$]],\backslash$table$[[$Local$],[$Miss Rate$],[$with$],[$Second$],[$Level$],[$Cache$,],[$Eight$-$Way$],[$Set$],[$Associative$]]],[1\mathrm{.}5,3GHz,150ns,8\%,\backslash$table$[[15],[$cycles$]],30\%,25$ cycles,$20\%$