a simple query in a while loop to check SQL Server response

could you recommend/suggest  a simple SQL statement that can be run every minute or 3 or so, to bring a response and how many [ms] it took to bring it back.. just to get an idea of the response time.. that will give some idea that the system is  not over-whelmed..
 
 thanks
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ZberteocCommented:
Basically from a simple app you connect to a SQL server and then execute:

SELECT 1

if you capture the time before you send the request and the time after the request came back and make a difference you will have your answer.
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Vitor MontalvãoMSSQL Senior EngineerCommented:
SELECT GETDATE() returns the current date and time on the server but it's not like that that you verify for bottlenecks in SQL Server,
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Microsoft SQL Server 2008

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