메모리 액세스에 최적화된 시스템 버전 임시 테이블 모니터링

  • 아티클

적용 대상: SQL Server 2016(13.x) 이상 Azure SQL 데이터베이스Azure SQL Managed Instance

기존 뷰를 사용하여 모든 시스템 버전 메모리 최적화 테이블에 대한 자세하고 요약된 메모리 사용을 추적할 수 있습니다.

자세한 메모리 소비(기본 시스템 버전 및 내부 기록 준비 테이블 분할):

--Details of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
SELECT
   TemporalTableSchema
   , T.TemporalTableName
   , T.InternalHistoryStagingName,
      CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
   , C.*
FROM sys.dm_db_xtp_memory_consumers C
JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
   WHERE T.TemporalTableSchema = 'dbo' AND T.TemporalTableName = 'FXCurrencyPairs'
;

메모리 사용량 요약(시스템 버전 메모리 최적화 테이블의 합계):

--Summary of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
, DetailedConsumption
AS
(
   SELECT TemporalTableSchema
      , T.TemporalTableName
      , T.InternalHistoryStagingName
      , CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
      , C.*
   FROM sys.dm_db_xtp_memory_consumers C
   JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
)
SELECT TemporalTableSchema
   TemporalTableName
   , sum ( allocated_bytes ) AS allocated_bytes
   , sum ( used_bytes ) AS used_bytes
FROM DetailedConsumption
WHERE TemporalTableSchema = 'dbo' ANDTemporalTableName = 'FXCurrencyPairs'
GROUP BY TemporalTableSchema, TemporalTableName
;

참고 항목