This graph shows the behavior of the DBPrism CMS when another page is invalidated.
The red line shows a normal behavior, the average time for /Home.html page is around
of 40 milliseconds across 300 request (10 concurrent).
The yellow line is a second case when an ESI invalidation message invalidates the
/docs/Readme.html page, at this point DBPrism CMS needs to update the content of
this page and the average response time is not meaningful affected.
