echoping is a program to test and monitor the response time of network servers, for instance DBMS servers. It is typically used from the command-line or called repetitively by a monitoring framework such as SmokePing (http://www.smokeping.org/). http://echoping.sourceforge.net/ The new version, v6, just released, adds plugin support. Which means that, if you are not satisfied with the hard-wired protocols, you can easily develop a plugin for your favorite protocol. For instance, here is a demo of the PostgreSQL plugin (included with echoping): % echoping -n 10 -m postgresql db.example.org -c dbname=lsr2 \ 'SELECT * FROM Languages' Elapsed time: 0.027410 seconds Elapsed time: 0.024084 seconds Elapsed time: 0.021900 seconds Elapsed time: 0.021903 seconds Elapsed time: 0.021892 seconds Elapsed time: 0.021865 seconds Elapsed time: 0.021886 seconds Elapsed time: 0.021922 seconds Elapsed time: 0.021871 seconds Elapsed time: 0.021873 seconds --- Minimum time: 0.021865 seconds (11708 bytes per sec.) Maximum time: 0.027410 seconds (9340 bytes per sec.) Average time: 0.022660 seconds (11297 bytes per sec.) Standard deviation: 0.001713 Median time: 0.021896 seconds (11692 bytes per sec.) You can use echoping to debug performance problems, avoiding the fuzzy "it seems a bit faster if I remove the constraint" or to monitor automatically performance issues, to see the slowdowns when checkpointing runs.
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