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"""
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lsprofcalltree.py - lsprof output which is readable by kcachegrind
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Authors:
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* David Allouche <david <at> allouche.net>
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* Jp Calderone & Itamar Shtull-Trauring
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* Johan Dahlin
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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"""
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from __future__ import absolute_import, print_function
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def label(code):
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if isinstance(code, str):
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return '~' + code # built-in functions ('~' sorts at the end)
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else:
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return '%s %s:%d' % (code.co_name,
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code.co_filename,
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code.co_firstlineno)
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class KCacheGrind(object):
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def __init__(self, profiler):
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self.data = profiler.getstats()
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self.out_file = None
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def output(self, out_file):
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self.out_file = out_file
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print('events: Ticks', file=out_file)
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self._print_summary()
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for entry in self.data:
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self._entry(entry)
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def _print_summary(self):
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max_cost = 0
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for entry in self.data:
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totaltime = int(entry.totaltime * 1000)
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max_cost = max(max_cost, totaltime)
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print('summary: %d' % max_cost, file=self.out_file)
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def _entry(self, entry):
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out_file = self.out_file
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code = entry.code
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if isinstance(code, str):
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print('fi=~', file=out_file)
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else:
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print('fi=%s' % code.co_filename, file=out_file)
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print('fn=%s' % label(code), file=out_file)
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inlinetime = int(entry.inlinetime * 1000)
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if isinstance(code, str):
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print('0 ', inlinetime, file=out_file)
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else:
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print('%d %d' % (code.co_firstlineno, inlinetime), file=out_file)
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# recursive calls are counted in entry.calls
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if entry.calls:
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calls = entry.calls
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else:
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calls = []
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if isinstance(code, str):
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lineno = 0
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else:
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lineno = code.co_firstlineno
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for subentry in calls:
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self._subentry(lineno, subentry)
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print(file=out_file)
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def _subentry(self, lineno, subentry):
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out_file = self.out_file
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code = subentry.code
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print('cfn=%s' % label(code), file=out_file)
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if isinstance(code, str):
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print('cfi=~', file=out_file)
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print('calls=%d 0' % subentry.callcount, file=out_file)
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else:
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print('cfi=%s' % code.co_filename, file=out_file)
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print('calls=%d %d' % (
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subentry.callcount, code.co_firstlineno), file=out_file)
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totaltime = int(subentry.totaltime * 1000)
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print('%d %d' % (lineno, totaltime), file=out_file)
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