optional logging for speed.py
optional logging for speed.py

tomashaber/raiden,tomaaron/raiden,tomaaron/raiden,tomaaron/raiden,tomaaron/raiden,tomashaber/raiden,tomashaber/raiden,charles-cooper/raiden,tomashaber/raiden,hackaugusto/raiden,charles-cooper/raiden,tomashaber/raiden,hackaugusto/raiden