SQL Server 최적화 관련 도구 스 크 립 트

/****************************************

1.     DB      

Phoenix.Feng 2012-12-01

****************************************/

SELECT request_session_id, resource_type, request_status, request_mode, resource_description, OBJECT_NAME(p.object_id) as OBJECT_NAME, p.index_id

FROM sys.dm_tran_locks t left join sys.partitions p ON t.resource_associated_entity_id = p.hobt_id

ORDER BY request_session_id, resource_type





/****************************************

2.               

Phoenix.Feng 2012-12-01

****************************************/

DECLARE @data xml =

        CONVERT

        (

            xml,

            (

            SELECT TOP (1)

                dxst.target_data

            FROM sys.dm_xe_sessions AS dxs 

            JOIN sys.dm_xe_session_targets AS dxst ON

                dxst.event_session_address = dxs.[address]

            WHERE 

                dxs.name = N'system_health'

                AND dxst.target_name = N'ring_buffer'

            )

        )

SELECT XEventData.XEvent.value('(data/value)[1]', 'varchar(max)') AS Record

FROM @data.nodes ('./RingBufferTarget/event[@name eq "xml_deadlock_report"]') AS XEventData (XEvent)

WHERE XEventData.XEvent.value('@name', 'varchar(max)') = 'xml_deadlock_report';





/****************************************

3.     DB     1

Phoenix.Feng 2012-12-01

****************************************/

SELECT

    blocked_query.session_id AS blocked_session_id,

    blocking_query.session_id AS blocking_session_id,

    blocking_sql_text.text AS blocking_sql_text,

    blocked_sql_text.text AS blocked_sql_text,

    waits.wait_type AS blocking_resource,

    blocked_query.command AS blocked_command,

    blocking_query.command AS blocking_command, 

    blocked_query.wait_type AS blocked_wait_type,

    blocked_query.wait_time AS blocked_wait_time, 

    blocking_query.total_elapsed_time AS blocking_elapsed_time, GETDATE()

FROM sys.dm_exec_requests blocked_query JOIN sys.dm_exec_requests blocking_query ON blocked_query.blocking_session_id = blocking_query.session_id

CROSS APPLY

(SELECT * FROM sys.dm_exec_sql_text(blocking_query.sql_handle)) blocking_sql_text

CROSS APPLY (SELECT * FROM sys.dm_exec_sql_text(blocked_query.sql_handle)) blocked_sql_text JOIN sys.dm_os_waiting_tasks waits ON

waits.session_id = blocking_query.session_id





/****************************************

3.     DB     2

Phoenix.Feng 2013-04-08

****************************************/

SELECT request_session_id, resource_type, request_status,

request_mode, resource_description, 

(CASE resource_type WHEN 'OBJECT' THEN OBJECT_NAME(t.resource_associated_entity_id)

ELSE OBJECT_NAME(p.object_id) END) OBJECT_NAME, 

p.index_id

FROM sys.dm_tran_locks t left join sys.partitions p 

ON t.resource_associated_entity_id = p.hobt_id

ORDER BY request_session_id, resource_type





/****************************************

4.         

Phoenix.Feng 2012-12-01

****************************************/

SELECT *, %%lockres%% AS [key] FROM friend.FriendInteractions WITH (index = PK_FriendInteractions) WHERE %%lockres%% IN('(1d4222ef989f)')





/****************************************

5.             

Phoenix.Feng 2012-12-01

****************************************/

SELECT SCHEMA_NAME(schema_id) [schema_name], OBJECT_NAME(object_id) [object_name] from sys.objects where object_id = 924582382

--1.      

SELECT OBJECT_NAME(object_id) object_name, mid.equality_columns, mid.included_columns, mid.inequality_columns, avg_user_impact

FROM sys.dm_db_missing_index_group_stats AS migs

INNER JOIN sys.dm_db_missing_index_groups AS mig

    ON (migs.group_handle = mig.index_group_handle)

INNER JOIN sys.dm_db_missing_index_details AS mid

    ON (mig.index_handle = mid.index_handle)

WHERE database_id = 9 and migs.group_handle in(SELECT top 10000 group_handle

FROM sys.dm_db_missing_index_group_stats 

ORDER BY avg_total_user_cost * avg_user_impact * (user_seeks + user_scans)DESC);





--2.      (    )

PRINT 'Missing Indexes: '

PRINT 'The "improvement_measure" column is an indicator of the (estimated) improvement that might '

PRINT 'be seen if the index was created.  This is a unitless number, and has meaning only relative '

PRINT 'the same number for other indexes.  The measure is a combination of the avg_total_user_cost, '

PRINT 'avg_user_impact, user_seeks, and user_scans columns in sys.dm_db_missing_index_group_stats.'

PRINT ''

PRINT '-- Missing Indexes --'

SELECT CONVERT (VARCHAR, getdate(), 126) AS runtime, 

  mig.index_group_handle, mid.index_handle, 

  CONVERT (decimal(28,1), migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans)) AS improvement_measure, 

  'CREATE INDEX missing_index_' + CONVERT (varchar, mig.index_group_handle) + '_' + CONVERT (varchar, mid.index_handle) 

  + ' ON ' + mid.statement 

  + ' (' + ISNULL (mid.equality_columns,'') 

    + CASE WHEN mid.equality_columns IS NOT NULL AND mid.inequality_columns IS NOT NULL THEN ',' ELSE '' END + ISNULL (mid.inequality_columns, '')

  + ')' 

  + ISNULL (' INCLUDE (' + mid.included_columns + ')', '') AS create_index_statement, 

  migs.*, mid.database_id, mid.[object_id]

FROM sys.dm_db_missing_index_groups mig

INNER JOIN sys.dm_db_missing_index_group_stats migs ON migs.group_handle = mig.index_group_handle

INNER JOIN sys.dm_db_missing_index_details mid ON mig.index_handle = mid.index_handle

WHERE CONVERT (decimal (28,1), migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans)) > 10 and database_id = 9

ORDER BY migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans) DESC

PRINT ''

GO





--3.     

SELECT database_id, object_id, index_id, index_type_desc, alloc_unit_type_desc, avg_fragmentation_in_percent, fragment_count, avg_fragment_size_in_pages, page_count FROM sys.dm_db_index_physical_stats (9, NULL, NULL, NULL, NULL) WHERE avg_fragmentation_in_percent > 10 ORDER BY avg_fragmentation_in_percent

DESC





--4.        

SELECT SCHEMA_NAME(t.schema_id) 'schema', i.type_desc, object_name(i.object_id) tableName, i.Name indexName

FROM sys.indexes i join ProjectA_GameDB_Internal.sys.tables t ON(i.object_id = t.object_id)

WHERE i.index_id NOT IN (SELECT s.index_id FROM sys.dm_db_index_usage_stats s WHERE s.object_id = i.object_id and 

i.index_id = s.index_id and database_id = DB_ID('ProjectA_GameDB_Internal'))

ORDER BY object_name(i.object_id) ASC





--5.       

SELECT OBJECT_NAME(A.object_id) object_name, B.name, ((select name from sys.columns where object_id = A.object_id and column_id = (select TOP 1 index_column_id from sys.index_columns where object_id = A.object_id and index_id = B.index_id))) AS column_name, b.index_id, B.type_desc, user_seeks, user_scans, user_lookups, user_updates FROM sys.dm_db_index_usage_stats A JOIN sys.indexes B ON(A.object_id = b.object_id AND A.index_id = B.index_id) 

 --JOIN SYS.index_columns C ON(B.object_id = C.object_id AND B.index_id = C.index_id)

WHERE A.object_id  in(SELECT object_id FROM sys.objects WHERE TYPE = 'U')

and user_seeks = 0

ORDER BY A.user_seeks

/****************************************

1.   CPU        ，   SQL   。

Phoenix.Feng 2013-03-20

****************************************/

WITH Result AS(

SELECT

(SELECT dbid FROM sys.dm_exec_sql_text(sql_handle)) AS [DB_ID],

total_worker_time/execution_count AS [Avg CPU Time],   

(SELECT SUBSTRING(text,statement_start_offset/2,(CASE WHEN statement_end_offset = -1 then LEN(CONVERT(nvarchar(max), text)) * 2 ELSE statement_end_offset end -statement_start_offset)/2) FROM sys.dm_exec_sql_text(sql_handle)) AS query_text, *   

FROM sys.dm_exec_query_stats

) SELECT [Avg CPU Time] / 1000, * FROM Result WHERE [DB_ID] = 312 ORDER BY [Avg CPU Time] DESC  



/****************************************

2.            CPU        （   ‘%Hash Match%’、‘%Sort%’）       。

Phoenix.Feng 2013-03-20

****************************************/

SELECT * FROM sys.dm_exec_cached_plans cross apply sys.dm_exec_query_plan(plan_handle)   

WHERE CAST (query_plan AS NVARCHAR(MAX)) like '%Sort%'  

OR CAST (query_plan as NVARCHAR (max)) like '%Hash Match%'  





/****************************************

3.        CPU、            。

Phoenix.Feng 2013-03-20

****************************************/

SELECT cpu_count, hyperthread_ratio, scheduler_count,   

physical_memory_in_bytes / 1024 / 1024 AS physical_memory_mb,   

virtual_memory_in_bytes / 1024 / 1024 AS virtual_memory_mb,   

bpool_committed * 8 / 1024 AS bpool_committed_mb,   

bpool_commit_target * 8 / 1024 AS bpool_target_mb,   

bpool_visible * 8 / 1024 AS bpool_visible_mb   

FROM sys.dm_os_sys_info  





/****************************************

5.               I/O       。

Phoenix.Feng 2013-03-20

****************************************/

SELECT TOP 5     

    (total_logical_reads / execution_count) AS avg_logical_reads,   

    (total_logical_writes / execution_count) AS avg_logical_writes,   

    (total_physical_reads / execution_count) AS avg_phys_reads,   

    Execution_count, statement_start_offset  AS  stmt_start_offset,    

    sql_handle,    

    plan_handle   

FROM sys.dm_exec_query_stats     

ORDER BY (total_logical_reads + total_logical_writes) Desc





/****************************************

6.        CPU、            。

Phoenix.Feng 2013-03-20

****************************************/

--Memory columns of sys.dm_os_sys_info

 SELECT

 --Amount of physical memory on server

 physical_memory_in_bytes

 --Amount of physical memory available to the process in user mode

 --Should be 2GB unless /3GB used

 ,virtual_memory_in_bytes

 --Committed physical memory in buffer pool

 --Does not include MemToLeave memory area

 ,bpool_committed AS 'Number of 8KB buffers in buffer pool'

 , bpool_commit_target AS 'Number of 8KB buffers needed by the buffer pool'

 ,CASE

 WHEN bpool_commit_target > bpool_committed THEN 'Extra memory needed

 from OS for Buffer Pool'

 WHEN bpool_commit_target < bpool_committed THEN 'Memory may be

 released from Buffer Pool to OS'

 END AS 'Status of Dynamic Memory'



 , bpool_visible AS 'Number of 8KB Buffers in Buffer Pool that are directly

 accessible in the processes VAS.'



 /* When AWE is not used. When memory target reached, the value will be the

 same as bpool_committed

 When AWE is used on 32-bit. This value represents the size of the AWE

 mapping window used to

 access physical memory allocated by the buffer pool. Since the size of the

 AWE mapping window

 is bound by the process VAS the value of this column will be smaller than

 the value of bpool_committed.

 If the value of this column becomes too low, you may receive out of memory

 errors.

 */

 FROM sys.dm_os_sys_info