Home Database Mysql Tutorial Oracle 性能分析工具Statpack安装使用

Oracle 性能分析工具Statpack安装使用

Jun 07, 2016 pm 05:03 PM

Statspack是一款功能强大的,免费的,oracle自带的性能分析工具。需要用具有sysdba权限的用户登陆进行安装。通过Statspack我们可

Statspack是一款功能强大的,免费的,Oracle自带的性能分析工具。需要用具有sysdba权限的用户登陆进行安装。

通过Statspack我们可以很容易的确定Oracle数据库的瓶颈所在,记录数据库性能状态,也可以使远程技术支持人员迅速了解你的数据库运行状况。
如果想要开启自动收集数据库的参数信息需要修改两个参数:

实验环境:

OS:RedHat 5.5

DB:oracle11g

参数设置:

job_queue_processes和timed_statistics

查询job_queue_processes是否大于0:

show parameter job_queue_processes;

如果=0,我们需要修改

alter system set job_queue_processes=10;

查看timed_statistics是否为true

修改:

alter system set timed_statistics=true;

安装statpack:

需要拥有sysdba权限的用户操作,首先创建用户表空间,这需要看我们收集的信息量的大小来设置,一般设置成500M既可

create tablespace perfstat '/home/oracle/perfstat.dbf' size 500m extent management local;

@$ORACLE_HOME/rdbms/admin/spcreate.sql

为用户perfstat设置密码

输入表空间和临时表空间

SPCPKG complete. Please check spcpkg.lis for any errors.
--需要出现上述语句才算成功,否则请查看.lis文件并执行,,进行重建
如果在创建的时候出错,我们可以删除重新建立:

@$ORACLE_HOME/rdbms/admin/spdrop.sql

在重新建立即可。

生成调查报告,切换到perfstat用户:

收集系统信息:execute statspack.snap;

查看收集统计信息的情况:

SQL> select snap_id,snap_time,startup_time from stats$snapshot;
   SNAP_ID SNAP_TIME STARTUP_T
---------- --------- ---------
         1 14-AUG-11 14-AUG-11
         2 14-AUG-11 14-AUG-11
         5 14-AUG-11 14-AUG-11
         3 14-AUG-11 14-AUG-11
         4 14-AUG-11 14-AUG-11

我们也可以使他自动统计系统的情况:

@$ORACLE_HOME/rdbms/admin/spauto.sql

linux

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