With a 1-Ghz CPU, the average CPU time taken for status polling is: poll manager 0.6 ms, SNMP stack 0.8 ms. When the poll manager detects a change of status, it informs the FM and writes to the DBMS. The CPI times take are: FM 1 ms, DBMS 5 ms. Assume that 10% of the polls detect a change of status, and that the CPU power increases linearly with the CPU clock speed. What is the minimum CPU speed to handle 1,000 polls/second?