参考AWR中的Instance Activity Statistics 环节

IOPS = “physical reads total I/O requests” + “physical writes total I/Orequests” MBytes/s = “physical reads total bytes” + physical writes total bytes” physical read total IO requests 3,272,436 455.48 34.52 physical write IO requests 314,647 43.79 3.32 IOPS = “physical reads total I/O requests” + “physical writes total I/Orequests” =455+43 = 498 physical read total bytes 3,218,786,182,144 448,007,955.58 33,956,306.25 physical write total bytes 72,372,139,008 10,073,143.17 763,483.62 MBytes/s= 448,955 +　10,143　＝　458081098bytes= 436 MB/s 大致计算其 IOPS 为 498 而 吞吐量为 436MB/s