time to execute an xquery

tejaswi chennubhotlla <[email protected]> Sun, 23 Oct 2011 21:29:25 -0400
Newsgroups gmane.text.xml.xmlbeans.user
Message-ID <CACNW4bE9EkgJTdaBZF=NMi_AnA5XXKGRsNekQr59ZAQo-Hc-Yw@mail.gmail.com>
Hi All

How do I know the time taken to execute an xquery on an xml file.

Thank you

Tej