declare @object_name as varchar(500)
 select @object_name= object_name  FROM sys.dm_os_performance_counters
    WHERE counter_name = 'Transactions/sec'
               AND instance_name = 'master'
DECLARE @cntr_value bigint
SELECT @cntr_value = cntr_value
    FROM sys.dm_os_performance_counters
    WHERE counter_name = 'Transactions/sec'
        AND object_name = @object_name
        AND instance_name = 'master'
WAITFOR DELAY '00:00:01'
SELECT cntr_value - @cntr_value
    FROM sys.dm_os_performance_counters
    WHERE counter_name = 'Transactions/sec'
        AND object_name = @object_name
        AND instance_name = 'master'