Apache and Tomcat both make it easy to log response times out to the server access log (with the %D pattern), but I\'ve been unable to find any equivalent support in Jetty,
A good detailed explanation on how to enable response time logging through configuration is here: Monitoring latency in Jetty request log
Summary:
Open [JETTY HOME]/etc/jetty.xml.
Locate section.
Add Set name=”logLatency”>true to setter list.
Save it and restart Jetty.