You can display the response
time contributions for individual page elements in reports, to determine
how much time each page element contributes to the overall page response
time and to determine which page elements are performance bottlenecks.
About this task
Because page elements can be returned in parallel from the
server under test, the page response time is not necessarily the sum
of the page element response times. Client delay and connection time
also contribute to page response time. The page response time can
be greater that the sum of the page element response times if, for
example, a lengthy connection time adds a delay. Connection time includes
the time required for Domain Name Services (DNS) lookups. Conversely,
the page response time can be less than the sum of the page element
response times if multiple page elements are returned in parallel.
To view page element response times, which do not include client delay
or connection time, see
Viewing page element responses.
Procedure
- Right-click a page response time bar on a Page Performance
report.
- Select Display Page Response Time Contributions. The page response time contributions are displayed
for the selected page.
- To return to the original report, use the navigation information
in the upper-left corner.