监控提示总体缓冲区命中率只有76%,但是AWR报告里显示命中率是正常的。不知道从哪里入手,请飞总指点!
另外在数据库中查询到有两个指标很低,不知道有没有影响
1、Parse CPU to Pares Elapsed
SQL> select round((1 - cpu.value/total.value)*100,2) "Ratio" 2 from v$sysstat cpu,v$sysstat total 3 where cpu.name ='parse time cpu' 4 and total.name ='parse time elapsed';
Ratio ---------- 2.95
2、Non-Parse CPU SQL> select round((1 - parse.value/total.value)*100,2) "Non-Parse CPU Ratio" 2 from v$sysstat parse,v$sysstat total 3 where parse.name ='parse time cpu' 4 and total.name ='CPU used by this session';
Non-Parse CPU Ratio ------------------- 81.33
|