昨天下午16点到17点数据库很慢,前台页面查询很久都无反应
附件中是4点到5点的awr大神们帮忙看下 有什么异常 系统负载Snap IdSnap TimeSessionsCursors/Session
Begin Snap:1931104-5月 -14 16:00:54229339.1
End Snap:1931204-5月 -14 17:00:08160526.1
Elapsed: 59.23 (mins)
DB Time: 42,857.40 (mins)
这里看系统的负载已经相当的高,而主要的等待事件为:
EventWaitsTime(s)Avg Wait(ms)% Total Call TimeWait Class
library cache pin500,8191,459,9522,91556.8Concurrency
library cache lock2,154,3011,072,73749841.7Concurrency
latch: library cache pin1,35316,40112,122.6Concurrency
CPU time8,190.3
latch: library cache7844,4835,718.2Concurrency
这里显示的,主要是library相关等待
最好提供系统资源的监控数据,例如osw或者nmon之类
怎么没下文了?
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