You can see details about the most recent requests in the Web Console, the Recent Requests tab ( http://localhost:4502/system/console/requests
for a local author instance ).
The output is similar to the one below, and it should give you enough information
0 (2013-09-14 21:36:20) TIMER_START{Request Processing}
0 (2013-09-14 21:36:20) COMMENT timer_end format is {<elapsed msec>,<timer name>} <optional message>
0 (2013-09-14 21:36:20) LOG Method=GET, PathInfo=/.edit.html
0 (2013-09-14 21:36:20) TIMER_START{ResourceResolution}
1 (2013-09-14 21:36:20) TIMER_END{1,ResourceResolution} URI=/.edit.html resolves to Resource=JcrNodeResource, type=sling:redirect, superType=null, path=/
1 (2013-09-14 21:36:20) LOG Resource Path Info: SlingRequestPathInfo: path='/', selectorString='edit', extension='html', suffix='null'
1 (2013-09-14 21:36:20) TIMER_START{ServletResolution}
1 (2013-09-14 21:36:20) TIMER_START{resolveServlet(JcrNodeResource, type=sling:redirect, superType=null, path=/)}
1 (2013-09-14 21:36:20) TIMER_END{0,resolveServlet(JcrNodeResource, type=sling:redirect, superType=null, path=/)} Using servlet /libs/sling/servlet/default/edit.jsp
1 (2013-09-14 21:36:20) TIMER_END{0,ServletResolution} URI=/.edit.html handled by Servlet=/libs/sling/servlet/default/edit.jsp
1 (2013-09-14 21:36:20) LOG Applying Requestfilters
1 (2013-09-14 21:36:20) LOG Calling filter: org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter
1 (2013-09-14 21:36:20) LOG Calling filter: org.apache.sling.explorer.post.POSTServletFilter
1 (2013-09-14 21:36:20) TIMER_START{/libs/sling/servlet/default/edit.jsp#0}
3 (2013-09-14 21:36:20) LOG Including resource JcrNodeResource, type=sling:redirect, superType=null, path=/ (SlingRequestPathInfo: path='/', selectorString='head', extension='html', suffix='null')
3 (2013-09-14 21:36:20) TIMER_START{resolveServlet(JcrNodeResource, type=sling:redirect, superType=null, path=/)}
3 (2013-09-14 21:36:20) TIMER_END{0,resolveServlet(JcrNodeResource, type=sling:redirect, superType=null, path=/)} Using servlet /libs/sling/servlet/default/head.jsp