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stats.py 0000644 00000005026 15204114712 0006254 0 ustar 00 """Statistics analyzer for HotShot.""" import profile import pstats import hotshot.log from hotshot.log import ENTER, EXIT def load(filename): return StatsLoader(filename).load() class StatsLoader: def __init__(self, logfn): self._logfn = logfn self._code = {} self._stack = [] self.pop_frame = self._stack.pop def load(self): # The timer selected by the profiler should never be used, so make # sure it doesn't work: p = Profile() p.get_time = _brokentimer log = hotshot.log.LogReader(self._logfn) taccum = 0 for event in log: what, (filename, lineno, funcname), tdelta = event if tdelta > 0: taccum += tdelta # We multiply taccum to convert from the microseconds we # have to the seconds that the profile/pstats module work # with; this allows the numbers to have some basis in # reality (ignoring calibration issues for now). if what == ENTER: frame = self.new_frame(filename, lineno, funcname) p.trace_dispatch_call(frame, taccum * .000001) taccum = 0 elif what == EXIT: frame = self.pop_frame() p.trace_dispatch_return(frame, taccum * .000001) taccum = 0 # no further work for line events assert not self._stack return pstats.Stats(p) def new_frame(self, *args): # args must be filename, firstlineno, funcname # our code objects are cached since we don't need to create # new ones every time try: code = self._code[args] except KeyError: code = FakeCode(*args) self._code[args] = code # frame objects are create fresh, since the back pointer will # vary considerably if self._stack: back = self._stack[-1] else: back = None frame = FakeFrame(code, back) self._stack.append(frame) return frame class Profile(profile.Profile): def simulate_cmd_complete(self): pass class FakeCode: def __init__(self, filename, firstlineno, funcname): self.co_filename = filename self.co_firstlineno = firstlineno self.co_name = self.__name__ = funcname class FakeFrame: def __init__(self, code, back): self.f_back = back self.f_code = code def _brokentimer(): raise RuntimeError, "this timer should not be called" __init__.py 0000644 00000005156 15204114712 0006661 0 ustar 00 """High-perfomance logging profiler, mostly written in C.""" import _hotshot from _hotshot import ProfilerError from warnings import warnpy3k as _warnpy3k _warnpy3k("The 'hotshot' module is not supported in 3.x, " "use the 'profile' module instead.", stacklevel=2) class Profile: def __init__(self, logfn, lineevents=0, linetimings=1): self.lineevents = lineevents and 1 or 0 self.linetimings = (linetimings and lineevents) and 1 or 0 self._prof = p = _hotshot.profiler( logfn, self.lineevents, self.linetimings) # Attempt to avoid confusing results caused by the presence of # Python wrappers around these functions, but only if we can # be sure the methods have not been overridden or extended. if self.__class__ is Profile: self.close = p.close self.start = p.start self.stop = p.stop self.addinfo = p.addinfo def close(self): """Close the logfile and terminate the profiler.""" self._prof.close() def fileno(self): """Return the file descriptor of the profiler's log file.""" return self._prof.fileno() def start(self): """Start the profiler.""" self._prof.start() def stop(self): """Stop the profiler.""" self._prof.stop() def addinfo(self, key, value): """Add an arbitrary labelled value to the profile log.""" self._prof.addinfo(key, value) # These methods offer the same interface as the profile.Profile class, # but delegate most of the work to the C implementation underneath. def run(self, cmd): """Profile an exec-compatible string in the script environment. The globals from the __main__ module are used as both the globals and locals for the script. """ import __main__ dict = __main__.__dict__ return self.runctx(cmd, dict, dict) def runctx(self, cmd, globals, locals): """Evaluate an exec-compatible string in a specific environment. The string is compiled before profiling begins. """ code = compile(cmd, "<string>", "exec") self._prof.runcode(code, globals, locals) return self def runcall(self, func, *args, **kw): """Profile a single call of a callable. Additional positional and keyword arguments may be passed along; the result of the call is returned, and exceptions are allowed to propagate cleanly, while ensuring that profiling is disabled on the way out. """ return self._prof.runcall(func, args, kw) __init__.pyo 0000644 00000006634 15204114712 0007042 0 ustar 00 � {fc @ sY d Z d d l Z d d l m Z d d l m Z e d d d �d d d � � YZ d S( s6 High-perfomance logging profiler, mostly written in C.i����N( t ProfilerError( t warnpy3ksO The 'hotshot' module is not supported in 3.x, use the 'profile' module instead.t stackleveli t Profilec B s_ e Z d d d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( i i c C s� | r d p d | _ | r'