Home Database Mysql Tutorial Oracle服务器系统负载过高的处理

Oracle服务器系统负载过高的处理

Jun 07, 2016 pm 03:01 PM
oracle t deal with server examine system load High

1.检查系统 top命令显示系统 load averages: 99.90, 117.54, 125.71 观察cpu使用率不高。 iowait 高! 2.检查进程数量 ps -ef|grep oracle|wc -l 显示进程数量大概在150左右 3.检查数据库 查询v$session_wait获取各进程等待事件 SQL select sid,event,p1,p1t

1.检查系统 top命令显示系统 load averages: 99.90, 117.54, 125.71  

  观察cpu使用率不高。 iowait 高!

 

2.检查进程数量

  ps -ef|grep oracle|wc -l   显示进程数量大概在150左右

3.检查数据库

   查询v$session_wait获取各进程等待事件

 

SQL> select sid,event,p1,p1text from v$session_wait;

       SID EVENT                                  P1 P1TEXT
       ----- --------------------------------------------------   

       124 latch free                     1.6144E+10 address
         1 pmon timer                            300 duration
         2 rdbms ipc message                     300 timeout
         3 rdbms ipc message                     300 timeout
        11 rdbms ipc message                   30000 timeout
         6 rdbms ipc message                  180000 timeout
         4 rdbms ipc message                     300 timeout
       134 rdbms ipc message                    6000 timeout
       147 rdbms ipc message                    6000 timeout
       275 rdbms ipc message     

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