概述
Oracle Database 10g 提供了一个新的工具:(AWR:Automatic Workload Repository) .
AWR 实质上是一个 Oracle 的内置工具,它采集与性能相关的统计数据,并从那些统计数据中导出性能量度,以跟踪潜在的问题。
首先进入$ORACLE_HOME/rdbms/admin目录,在sqlplus下运行@awrrpt脚本,按照提示一步一步就可以达成,导出的格式有两种,txt格式和html格式。
栗子
awrrpt.sql
如果不知道 awrrpt.sql的脚本在哪里,利用locate命令可以快速的查找到
切到oracle用户下执行以下操作。
SQL> @?/rdbms/admin/awrrpt.sql
等待即可…
退出sql窗口,切到刚才的目录,查看 cc_awr_rpt_20160906.html
找不到了就locate一下 ,使用root用户
generate_multiple_awr_reports
-- ----------------------------------------------------------------------------------- -- File Name : http://www.oracle-base.com/dba/10g/generate_multiple_awr_reports.sql -- Author : DR Timothy S Hall -- Description : Generates AWR reports for all snapsots between the specified start and end point. -- Requirements : Access to the v$ views, UTL_FILE and DBMS_WORKLOAD_REPOSITORY packages. -- Call Syntax : Create the directory with the appropriate path. -- Adjust the start and end snapshots as required. -- @generate_multiple_awr_reports.sql -- Last Modified: 02/08/2007 -- ----------------------------------------------------------------------------------- CREATE OR REPLACE DIRECTORY awr_reports_dir AS '/tmp/'; DECLARE -- Adjust before use. l_snap_start NUMBER := 1; l_snap_end NUMBER := 10; l_dir VARCHAR2(50) := 'AWR_REPORTS_DIR'; l_last_snap NUMBER := NULL; l_dbid v$database.dbid%TYPE; l_instance_number v$instance.instance_number%TYPE; l_file UTL_FILE.file_type; l_file_name VARCHAR(50); BEGIN SELECT dbid INTO l_dbid FROM v$database; SELECT instance_number INTO l_instance_number FROM v$instance; FOR cur_snap IN (SELECT snap_id FROM dba_hist_snapshot WHERE instance_number = l_instance_number AND snap_id BETWEEN l_snap_start AND l_snap_end ORDER BY snap_id) LOOP IF l_last_snap IS NOT NULL THEN l_file := UTL_FILE.fopen(l_dir, 'awr_' || l_last_snap || '_' || cur_snap.snap_id || '.htm', 'w', 32767); FOR cur_rep IN (SELECT output FROM TABLE(DBMS_WORKLOAD_REPOSITORY.awr_report_html(l_dbid, l_instance_number, l_last_snap, cur_snap.snap_id))) LOOP UTL_FILE.put_line(l_file, cur_rep.output); END LOOP; UTL_FILE.fclose(l_file); END IF; l_last_snap := cur_snap.snap_id; END LOOP; EXCEPTION WHEN OTHERS THEN IF UTL_FILE.is_open(l_file) THEN UTL_FILE.fclose(l_file); END IF; RAISE; END; /