No support for intermediate timing information

[Jonathan Lange]

txstatsd does not provide an API for specifying intermediate times in a timeline of events. Such a thing is useful for gathering data on multi-stage events.

http://pypi.python.org/pypi/python-statsd is another statsd client that has support for intermediate timing information.

e.g.::
         timer = self.statsd_client.get_client(class_=statsd.Timer)
         timer.start()
         timer.interval('intermediate_value')
         timer.stop('total')