oracle gets/exec 单位,Oracle AWR报告分析之–SQL ordered by

た入场券 2023-01-18 11:25 57阅读 0赞

![2354782c4f3de3320a20fa2b91496528.png][]

1、SQL ordered by Elapsed Time

Resources reported for PL/SQL code includes the resources used by all SQL statements called by the code.

% Total DB Time is the Elapsed Time of the SQL statement divided into the Total Database Time multiplied by 100

%Total - Elapsed Time as a percentage of Total DB time

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Captured SQL account for 127.4% of Total DB Time (s): 1,908

Captured PL/SQL account for 39.1% of Total DB Time (s): 1,908

Elapsed Time (s)

Executions

Elapsed Time per Exec (s)

%Total

%CPU

%IO

SQL Id

SQL Module

SQL Text

记录了执行总和时间的TOP SQL(请注意是监控范围内该SQL的执行时间总和，而不是单次SQL执行时间 Elapsed Time = CPU Time + Wait Time)。

Elapsed Time(S): SQL语句执行用总时长，此排序就是按照这个字段进行的。注意该时间不是单个SQL跑的时间，而是监控范围内SQL执行次数的总和时间。单位时间为秒。Elapsed Time = CPU Time + Wait Time

CPU Time(s): 为SQL语句执行时CPU占用时间总时长，此时间会小于等于Elapsed Time时间。单位时间为秒。

Executions: SQL语句在监控范围内的执行次数总计。

Elap per Exec(s): 执行一次SQL的平均时间。单位时间为秒。

% Total DB Time: 为SQL的Elapsed Time时间占数据库总时间的百分比。

SQL ID: SQL语句的ID编号，点击之后就能导航到下边的SQL详细列表中，点击IE的返回可以回到当前SQL ID的地方。

SQL Module: 显示该SQL是用什么方式连接到数据库执行的，如果是用SQL\*Plus或者PL/SQL链接上来的那基本上都是有人在调试程序。一般用前台应用链接过来执行的sql该位置为空。

SQL Text: 简单的sql提示，详细的需要点击SQL ID。

2、SQL ordered by CPU Time

Resources reported for PL/SQL code includes the resources used by all SQL statements called by the code.

%Total - CPU Time as a percentage of Total DB CPU

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Captured SQL account for 125.6% of Total CPU Time (s): 1,339

Captured PL/SQL account for 38.0% of Total CPU Time (s): 1,339

CPU Time (s)

Executions

CPU per Exec (s)

%Total

Elapsed Time (s)

%CPU

%IO

SQL Id

SQL Module

SQL Text

记录了执行占CPU时间总和时间最长的TOP SQL(请注意是监控范围内该SQL的执行占CPU时间总和，而不是单次SQL执行时间)。

3、SQL ordered by Gets

Resources reported for PL/SQL code includes the resources used by all SQL statements called by the code.

%Total - Buffer Gets as a percentage of Total Buffer Gets

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Total Buffer Gets: 359,945,491

Captured SQL account for 174.8% of Total

Buffer Gets

Executions

Gets per Exec

%Total

Elapsed Time (s)

%CPU

%IO

SQL Id

SQL Module

SQL Text

记录了执行占总buffer gets(逻辑IO)的TOP SQL(请注意是监控范围内该SQL的执行占Gets总和，而不是单次SQL执行所占的Gets)。

4、SQL ordered by Reads

%Total - Physical Reads as a percentage of Total Disk Reads

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Total Disk Reads: 459

Captured SQL account for 0.2% of Total

Physical Reads

Executions

Reads per Exec

%Total

Elapsed Time (s)

%CPU

%IO

SQL Id

SQL Module

SQL Text

5、SQL ordered by Physical Reads (UnOptimized)

UnOptimized Read Reqs = Physical Read Reqts - Optimized Read Reqs

%Opt - Optimized Reads as percentage of SQL Read Requests

%Total - UnOptimized Read Reqs as a percentage of Total UnOptimized Read Reqs

Total Physical Read Requests: 459

Captured SQL account for 0.2% of Total

Total UnOptimized Read Requests: 459

Captured SQL account for 0.2% of Total

Total Optimized Read Requests: 1

Captured SQL account for 0.0% of Total

UnOptimized Read Reqs

Physical Read Reqs

Executions

UnOptimized Reqs per Exec

%Opt

%Total

SQL Id

SQL Module

SQL Text

记录了执行占总磁盘物理读(物理IO)的TOP SQL(请注意是监控范围内该SQL的执行占磁盘物理读总和，而不是单次SQL执行所占的磁盘物理读)。

6、SQL ordered by Executions

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Total Executions: 2,863,782

Captured SQL account for 77.9% of Total

Executions

Rows Processed

Rows per Exec

Elapsed Time (s)

%CPU

%IO

SQL Id

SQL Module

SQL Text

记录了按照SQL的执行次数排序的TOP SQL。该排序可以看出监控范围内的SQL执行次数。

7、SQL ordered by Parse Calls

Total Parse Calls: 13,587

Captured SQL account for 14.0% of Total

Parse Calls

Executions

% Total Parses

SQL Id

SQL Module

SQL Text

记录了SQL的软解析次数的TOP SQL。说到软解析(soft prase)和硬解析(hard prase)，就不能不说一下Oracle对sql的处理过程。

8、SQL ordered by Sharable Memory

Only Statements with Sharable Memory greater than 1048576 are displayed

Sharable Mem (b)

Executions

% Total

SQL Id

SQL Module

SQL Text

记录了SQL占用library cache的大小的TOP SQL。Sharable Mem (b)：占用library cache的大小，单位是byte。

9、SQL ordered by Version Count

Only Statements with Version Count greater than 20 are displayed

Version Count

Executions

SQL Id

SQL Module

SQL Text

记录了SQL的打开子游标的TOP SQL。

10、SQL ordered by User I/O Wait Time

Resources reported for PL/SQL code includes the resources used by all SQL statements called by the code.

%Total - User I/O Time as a percentage of Total User I/O Wait time

%CPU - CPU Time as a percentage of Elapsed Time

%IO - User I/O Time as a percentage of Elapsed Time

Captured SQL account for 1.0% of Total User I/O Wait Time (s): 11

Captured PL/SQL account for 0.0% of Total User I/O Wait Time (s): 11

User I/O Time (s)

Executions

UIO per Exec (s)

%Total

Elapsed Time (s)

%CPU

%IO

SQL Id

SQL Module

SQL Text

记录了收集间的等待时间的TOP SQL

[2354782c4f3de3320a20fa2b91496528.png]: /images/20221021/9407c8b7a2264ed8b6f49e2fb98ef188.png

oracle gets/exec 单位,Oracle AWR报告分析之–SQL ordered by

发表评论取消回复

还没有评论，来说两句吧...

相关阅读

相关 Oracle AWR报告详细分析

相关 oracle gets/exec 单位,Oracle AWR报告分析之–SQL ordered by

相关 Oracle的AWR报告分析

相关 Oracle 通过AWR的SQL ordered by Gets和SQL ordered by Reads诊断问题

相关 [Oracle]Oracle的AWR报告分析

相关 oracle-AWR报告

相关 Oracle AWR报告详细分析

相关 oracle awr报告生成和分析

相关 oracle awr报告生成和分析

相关 Oracle的AWR报告分析