latency logging and graphing system

 SmokePing consists of a daemon process which organizes the
 latency measurements and a CGI which presents the graphs.
 .
 With SmokePing you can measure latency and packet loss in your network.
 SmokePing uses RRDtool to maintain a longterm datastore and to draw pretty
 graphs giving up to the minute information on the state of each
 network connection.