CHECKPOINT -- just to be sure and to allow for multiple tests

DECLARE @I int

SET @I = 10

WHILE @I > 0

BEGIN

BEGIN TRANSACTION

UPDATE test SET name = name

SELECT [Current LSN] ,

Operation ,

Context ,

[Transaction ID] ,

AllocUnitId ,

AllocUnitName ,

[Checkpoint Begin] ,

[Num Transactions] ,

[Checkpoint End] ,

[Dirty Pages] ,

[Log Record] FROM fn_dblog(NULL, null)

COMMIT

SET @I = @I - 1

END

Now - run it and watch the number of records in fn_dblog growing by 2 after each cycle.