Server Memory Change Event Class
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
Concepts
Other Resources
Monitoring Events
sp_trace_setevent (Transact-SQL)