Mercurial > kallithea
view kallithea/lib/profiler.py @ 4208:ad38f9f93b3b kallithea-2.2.5-rebrand
Correct licensing information in individual files.
The top-level license file is now LICENSE.md.
Also, in various places where there should have been joint copyright holders
listed, a single copyright holder was listed. It does not appear easy to add
a link to a large list of copyright holders in these places, so it simply
refers to the fact that various authors hold copyright.
In future, if an easy method is discovered to link to a list from those
places, we should do so.
Finally, text is added to LICENSE.md to point to where the full list of
copyright holders is, and that Kallithea as a whole is GPLv3'd.
author | Bradley M. Kuhn <bkuhn@sfconservancy.org> |
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date | Wed, 21 May 2014 16:59:37 -0400 |
parents | d1addaf7a91e |
children | d51a6f5e57d1 |
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from __future__ import with_statement import gc import objgraph import cProfile import pstats import cgi import pprint import threading from StringIO import StringIO class ProfilingMiddleware(object): def __init__(self, app): self.lock = threading.Lock() self.app = app def __call__(self, environ, start_response): with self.lock: profiler = cProfile.Profile() def run_app(*a, **kw): self.response = self.app(environ, start_response) profiler.runcall(run_app, environ, start_response) profiler.snapshot_stats() stats = pstats.Stats(profiler) stats.sort_stats('calls') #cummulative # Redirect output out = StringIO() stats.stream = out stats.print_stats() resp = ''.join(self.response) # Lets at least only put this on html-like responses. if resp.strip().startswith('<'): ## The profiling info is just appended to the response. ## Browsers don't mind this. resp += ('<pre style="text-align:left; ' 'border-top: 4px dashed red; padding: 1em;">') resp += cgi.escape(out.getvalue(), True) ct = objgraph.show_most_common_types() print ct resp += ct if ct else '---' output = StringIO() pprint.pprint(environ, output, depth=3) resp += cgi.escape(output.getvalue(), True) resp += '</pre>' return resp