Mercurial > hg
view mercurial/lsprof.py @ 51099:eba138890c64
revlog: move entry writing in the inner object
This is the second big piece of API we want to live on the inner object. With
this the inner object have freedom it needs to implement things internally.
(except for the delayed write feature of the changelog, that will be migrated in coming changesets)
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 19 Oct 2023 05:19:55 +0200 |
parents | 18c8c18993f0 |
children | 99632adff795 |
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import _lsprof import sys Profiler = _lsprof.Profiler # PyPy doesn't expose profiler_entry from the module. profiler_entry = getattr(_lsprof, 'profiler_entry', None) __all__ = [b'profile', b'Stats'] def profile(f, *args, **kwds): """XXX docstring""" p = Profiler() p.enable(subcalls=True, builtins=True) try: f(*args, **kwds) finally: p.disable() return Stats(p.getstats()) class Stats: """XXX docstring""" def __init__(self, data): self.data = data def sort(self, crit="inlinetime"): """XXX docstring""" # profiler_entries isn't defined when running under PyPy. if profiler_entry: if crit not in profiler_entry.__dict__: raise ValueError(b"Can't sort by %s" % crit) elif self.data and not getattr(self.data[0], crit, None): raise ValueError(b"Can't sort by %s" % crit) self.data.sort(key=lambda x: getattr(x, crit), reverse=True) for e in self.data: if e.calls: e.calls.sort(key=lambda x: getattr(x, crit), reverse=True) def pprint(self, top=None, file=None, limit=None, climit=None): """XXX docstring""" if file is None: file = sys.stdout d = self.data if top is not None: d = d[:top] cols = b"% 12d %12d %11.4f %11.4f %s\n" hcols = b"% 12s %12s %12s %12s %s\n" file.write( hcols % ( b"CallCount", b"Recursive", b"Total(s)", b"Inline(s)", b"module:lineno(function)", ) ) count = 0 for e in d: file.write( cols % ( e.callcount, e.reccallcount, e.totaltime, e.inlinetime, label(e.code), ) ) count += 1 if limit is not None and count == limit: return ccount = 0 if climit and e.calls: for se in e.calls: file.write( cols % ( se.callcount, se.reccallcount, se.totaltime, se.inlinetime, b" %s" % label(se.code), ) ) count += 1 ccount += 1 if limit is not None and count == limit: return if climit is not None and ccount == climit: break def freeze(self): """Replace all references to code objects with string descriptions; this makes it possible to pickle the instance.""" # this code is probably rather ickier than it needs to be! for i in range(len(self.data)): e = self.data[i] if not isinstance(e.code, str): self.data[i] = type(e)((label(e.code),) + e[1:]) if e.calls: for j in range(len(e.calls)): se = e.calls[j] if not isinstance(se.code, str): e.calls[j] = type(se)((label(se.code),) + se[1:]) _fn2mod = {} def label(code): if isinstance(code, str): return code.encode('latin-1') try: mname = _fn2mod[code.co_filename] except KeyError: for k, v in list(sys.modules.items()): if v is None: continue if not isinstance(getattr(v, '__file__', None), str): continue if v.__file__.startswith(code.co_filename): mname = _fn2mod[code.co_filename] = k break else: mname = _fn2mod[code.co_filename] = '<%s>' % code.co_filename res = '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name) return res.encode('latin-1')