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Server Memory Change Event Class

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance

The Server Memory Change event class occurs when Microsoft SQL Server memory usage has increased or decreased by either 1 megabyte (MB) or 5 percent of the maximum server memory, whichever is greater.

Server Memory Change Event Class Data Columns

Data column name Data type Description Column ID Yes
EventClass int Type of event = 81. 27 No
EventSequence int Sequence of a given event within the request. 51 No
EventSubClass int Type of event subclass.

1=Memory Increase

2=Memory Decrease
21 Yes
IntegerData int New memory size, in megabytes (MB). 25 Yes
IsSystem int Indicates whether the event occurred on a system process or a user process. 1 = system, 0 = user. 60 Yes
RequestID int ID of the request containing the statement. 49 Yes
ServerName nvarchar Name of the instance of SQL Server being traced. 26 No
SessionLoginName nvarchar The login name of the user who originated the session. For example, if you connect to SQL Server using Login1 and execute a statement as Login2, SessionLoginName shows Login1 and LoginName shows Login2. This column displays both SQL Server and Windows logins. 64 Yes
SPID int ID of the session on which the event occurred. 12 Yes
StartTime datetime Time at which the event started, if available. 14 Yes
TransactionID bigint System-assigned ID of the transaction. 4 Yes
XactSequence bigint Token that describes the current transaction. 50 Yes

See Also

Extended Events
sp_trace_setevent (Transact-SQL)
Server Memory Server Configuration Options