title: How to use ESPER performance kit for measuring latency and throughput of queries with single row functions
body: <p>I have written some ESPER CEP queries that use single row function in the queries.</p>
  
  <p>Now, I want to measure the latency and throughput of the query using the ESPER performance kit.</p>
  
  <p>So I am adding my query in the statement.properties, but I am not sure how and where I should write my single row function. Can I write it in a statement.properties itself? Below is my query with single row function called compute_average</p>
  
  <pre><code>Tsinglerowfn = select '$' as  ticker, compute_average(e) from Market(ticker='$')#time(5 seconds) as e
  </code></pre>
  
  <p>How can I measure the performance of queries with single row function in ESPER using the performance kit?</p>