Some note from Oracle’s documentation “Applications that spend the majority of CPU time waiting for I/O activity to complete are said to be I/O-bound.Prerequisites for I/O Calibration”. Values to parameters timed_statistics=TRUE “When using file systems, asynchronous I/O can be enabled by setting the FILESYSTEMIO_OPTIONS initialization parameter to SETALL.” DBMS_RESOURCE_MANAGER.CALIBRATE_IO procedure SET SERVEROUTPUT ON DECLARE lat INTEGER; iops INTEGER; mbps INTEGER; BEGIN — DBMS_RESOURCE_MANAGER.CALIBRATE_IO (<DISKS>, <MAX_LATENCY>, iops, mbps, lat); DBMS_RESOURCE_MANAGER.CALIBRATE_IO (2, 10, iops, mbps, lat); DBMS_OUTPUT.PUT_LINE (‘max_iops = ‘ || iops); DBMS_OUTPUT.PUT_LINE (‘latency = ‘ || lat); dbms_output.put_line(‘max_mbps = ‘ ||…