Comment #9 on issue 497 by pekka.klarck: Document that timeouts might cause performance problems if tests are executed with Python
http://code.google.com/p/robotframework/issues/detail?id=497
Apparently another reason timeouts are so slow in Robot is that our thread stopping hack is based on sys.settrace:
"""Other non-solutions include using sys.settrace in the thread. In addition to making the thread code horribly slow, this will also fail to work when the thread calls into C functions."""
http://eli.thegreenplace.net/2011/08/22/how-not-to-set-a-timeout-on-a-computation-in-python
