分享幾個常用的Oracle 11g內(nèi)存視圖腳本
作者:波波說運(yùn)維 
  今天主要分享幾個關(guān)于Oracle數(shù)據(jù)庫的內(nèi)存視圖的腳本,僅供參考。
 今天主要分享幾個關(guān)于Oracle數(shù)據(jù)庫的內(nèi)存視圖的腳本,僅供參考。
一、V$MEMORY_DYNAMIC_COMPONENTS
- V$MEMORY_DYNAMIC_COMPONENTS displays information about the dynamic SGA components. This view summarizes information based on all completed SGA resize operations since instance startup. All sizes are expressed in bytes.
 


腳本: Provides information about dynamic memory components.
- COLUMN component FORMAT A30
 - 
 - SELECT component,
 - ROUND(current_size/1024/1024) AS current_size_mb,
 - ROUND(min_size/1024/1024) AS min_size_mb,
 - ROUND(max_size/1024/1024) AS max_size_mb
 - FROM v$memory_dynamic_components
 - WHERE current_size != 0
 - ORDER BY component;
 

二、V$MEMORY_RESIZE_OPS
- V$MEMORY_RESIZE_OPS displays information about the last 800 completed memory resize operations (both automatic and manual). This does not include in-progress operations. All sizes are expressed in bytes.
 


腳本:Provides information about memory resize operations.
- SET LINESIZE 200
 - COLUMN parameter FORMAT A25
 - SELECT start_time,
 - end_time,
 - component,
 - oper_type,
 - oper_mode,
 - parameter,
 - ROUND(initial_size/1024/1024) AS initial_size_mb,
 - ROUND(target_size/1024/1024) AS target_size_mb,
 - ROUND(final_size/1024/1024) AS final_size_mb,
 - status
 - FROM v$memory_resize_ops
 - ORDER BY start_time;
 

三、V$MEMORY_TARGET_ADVICE
- V$MEMORY_TARGET_ADVICE provides information about how the MEMORY_TARGET parameter should be sized based on current sizing and satisfaction metrics.
 

腳本3: Provides information to help tune the MEMORY_TARGET parameter.
- SELECT * FROM v$memory_target_advice ORDER BY memory_size;
 

責(zé)任編輯:趙寧寧 
                    來源:
                    今日頭條
 














 
 
 

 
 
 
 