103 lines
3.3 KiB
Python
Executable File
103 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2014-2019 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Profile qutebrowser."""
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import sys
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import cProfile
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import os.path
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import os
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import tempfile
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import subprocess
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import shutil
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import argparse
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import shlex
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), os.pardir,
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os.pardir))
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import qutebrowser.qutebrowser
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def parse_args():
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"""Parse commandline arguments.
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Return:
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A (namespace, remaining_args) tuple from argparse.
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"""
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parser = argparse.ArgumentParser()
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parser.add_argument('--profile-tool', metavar='TOOL',
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action='store', choices=['kcachegrind', 'snakeviz',
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'gprof2dot', 'tuna', 'none'],
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default='snakeviz',
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help="The tool to use to view the profiling data")
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parser.add_argument('--profile-file', metavar='FILE', action='store',
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help="The filename to use with --profile-tool=none")
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parser.add_argument('--profile-test', action='store_true',
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help="Run pytest instead of qutebrowser")
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return parser.parse_known_args()
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def main():
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args, remaining = parse_args()
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tempdir = tempfile.mkdtemp()
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if args.profile_tool == 'none':
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profilefile = os.path.join(os.getcwd(), args.profile_file)
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else:
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profilefile = os.path.join(tempdir, 'profile')
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sys.argv = [sys.argv[0]] + remaining
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profiler = cProfile.Profile()
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if args.profile_test:
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import pytest
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profiler.runcall(pytest.main)
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else:
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profiler.runcall(qutebrowser.qutebrowser.main)
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# If we have an exception after here, we don't want the qutebrowser
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# exception hook to take over.
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sys.excepthook = sys.__excepthook__
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profiler.dump_stats(profilefile)
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if args.profile_tool == 'none':
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pass
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elif args.profile_tool == 'gprof2dot':
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# yep, shell=True. I know what I'm doing.
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subprocess.run(
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'gprof2dot -f pstats {} | dot -Tpng | feh -F -'.format(
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shlex.quote(profilefile)), shell=True)
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elif args.profile_tool == 'kcachegrind':
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callgraphfile = os.path.join(tempdir, 'callgraph')
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subprocess.run(['pyprof2calltree', '-k', '-i', profilefile,
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'-o', callgraphfile])
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elif args.profile_tool == 'snakeviz':
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subprocess.run(['snakeviz', profilefile])
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elif args.profile_tool == 'tuna':
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subprocess.run(['tuna', profilefile])
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shutil.rmtree(tempdir)
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if __name__ == '__main__':
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main()
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