diff --git a/moniker/debug.py b/moniker/debug.py new file mode 100644 index 000000000..e52f118ee --- /dev/null +++ b/moniker/debug.py @@ -0,0 +1,39 @@ +# Copyright 2013 Hewlett-Packard Development Company, L.P. All Rights Reserved. +# +# Author: Kiall Mac Innes +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +import cProfile +import functools +import tempfile +import pstats + + +def profile(lines=20, sort='cumtime'): + def outer(func): + @functools.wraps(func) + def inner(*args, **kwargs): + f = tempfile.NamedTemporaryFile() + + # Profile the function + prof = cProfile.Profile() + result = prof.runcall(func, *args, **kwargs) + prof.dump_stats(f.name) + + # Read the results, and print the stats + stats = pstats.Stats(f.name) + stats.sort_stats(sort).print_stats(lines) + + return result + return inner + return outer