Hi, We are running Oracle Applications 11i on a Sun 15K with 12 cpus. When one process consumes 8% of cpu utilization ( by running tops) , the idle time becomes 0%. As soon as I terminate this process I am back to 50-60% free idle time. Any ideas as to why when one process consumes 8% of the cpu the total idle time goes to 0. Thanks Anil Kumar OCP DBA Senior DBA Enterprise Operations , Mentor 1-440-392-7665 -- //www.freelists.org/webpage/oracle-l