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23 lines
786 B
Transact-SQL
23 lines
786 B
Transact-SQL
--SQL script to grab metadata contention from histogram
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Use tempdb
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DECLARE @target_data XML;
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SELECT @target_data = CAST(t.target_data AS XML)
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FROM sys.dm_xe_sessions AS s
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JOIN sys.dm_xe_session_targets AS t
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ON t.event_session_address = s.address
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WHERE s.name = N'ObjectContention' and t.target_name = N'histogram';
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with wait_stats as
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(
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SELECT
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n.value('(value)[1]','bigint') AS alloc_unit_id,
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n.value('(@count)[1]', 'bigint') AS [Count]
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FROM @target_data.nodes('//HistogramTarget/Slot') AS q(n)
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)
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SELECT objects.id, SUM(objects.count) as [Count] FROM
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(SELECT [dbo].[isSystemTable](wait_stats.alloc_unit_id) AS id, wait_stats.Count AS [count]
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FROM wait_stats
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WHERE [dbo].[isSystemTable](wait_stats.alloc_unit_id) not in (0, 99)) AS objects
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GROUP BY objects.id
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