.. _Optimization: Optimization ============ If you're feeling your Buildbot is running a bit slow, here are some tricks that may help you, but use them at your own risk. Properties load speedup ----------------------- For example, if most of your build properties are strings, you can gain an approx. 30% speedup if you put this snippet of code inside your master.cfg file: .. code-block:: python def speedup_json_loads(): import json, re original_decode = json._default_decoder.decode my_regexp = re.compile(r'^\[\"([^"]*)\",\s+\"([^"]*)\"\]$') def decode_with_re(str, *args, **kw): m = my_regexp.match(str) try: return list(m.groups()) except Exception: return original_decode(str, *args, **kw) json._default_decoder.decode = decode_with_re speedup_json_loads() It patches json decoder so that it would first try to extract a value from JSON that is a list of two strings (which is the case for a property being a string), and would fallback to general JSON decoder on any error.