diff options
| -rw-r--r-- | Doc/lib/libprofile.tex | 5 | ||||
| -rw-r--r-- | Lib/pstats.py | 126 |
2 files changed, 131 insertions, 0 deletions
diff --git a/Doc/lib/libprofile.tex b/Doc/lib/libprofile.tex index 335c02f..f206a16 100644 --- a/Doc/lib/libprofile.tex +++ b/Doc/lib/libprofile.tex @@ -220,6 +220,11 @@ p.print_callees() p.add('fooprof') \end{verbatim} +Invoked as a script, the \module{pstats} module is a statistics +browser for reading and examining profile dumps. It has a simple +line-oriented interface (implemented using \module{cmd}) and +interactive help. + \section{What Is Deterministic Profiling?} \nodename{Deterministic Profiling} diff --git a/Lib/pstats.py b/Lib/pstats.py index ea459d7..d456d08 100644 --- a/Lib/pstats.py +++ b/Lib/pstats.py @@ -524,3 +524,129 @@ def count_calls(callers): def f8(x): return fpformat.fix(x, 3).rjust(8) + +#************************************************************************** +# Statistics browser added by ESR, April 2001 +#************************************************************************** + +if __name__ == '__main__': + import cmd + + class ProfileBrowser(cmd.Cmd): + def __init__(self, profile=None): + self.prompt = "% " + if profile: + self.stats = Stats(profile) + else: + self.stats = None + + def generic(self, fn, line): + args = line.split() + processed = [] + for term in args: + try: + processed.append(int(term)) + continue + except ValueError: + pass + try: + frac = float(term) + if frac > 1 or frac < 0: + print "Fraction argument mus be in [0, 1]" + continue + processed.append(frac) + continue + except ValueError: + pass + processed.append(term) + if self.stats: + apply(getattr(self.stats, fn), processed) + else: + print "No statistics object is loaded." + return 0 + + def do_add(self, line): + self.stats.add(line) + return 0 + def help_add(self): + print "Add profile info from given file to current stastics object." + + def do_callees(self, line): + return self.generic('callees', line) + def help_callees(self): + print "Print callees statistics from the current stat object." + + def do_callers(self, line): + return self.generic('callers', line) + def help_callers(self): + print "Print callers statistics from the current stat object." + + def do_EOF(self, line): + print "" + return 1 + def help_EOF(self): + print "Leave the profile brower." + + def do_quit(self, line): + return 1 + def help_quit(self): + print "Leave the profile brower." + + def do_read(self, line): + if line: + try: + self.stats = Stats(line) + except IOError, args: + print args[1] + return + self.prompt = line + "% " + elif len(self.prompt > 2): + line = self.prompt[-2:] + else: + print "No statistics object is current -- cannot reload." + return 0 + def help_read(self): + print "Read in profile data from a specified file." + + def do_reverse(self, line): + self.stats.reverse_order() + return 0 + def help_reverse(self): + print "Reverse the sort order of the profiling report." + + def do_sort(self, line): + apply(self.stats.sort_stats, line.split()) + return 0 + def help_sort(self): + print "Sort profile data according to specified keys." + + def do_stats(self, line): + return self.generic('print_stats', line) + def help_stats(self): + print "Print statistics from the current stat object." + + def do_strip(self, line): + self.stats.strip_order() + return 0 + def help_strip(self): + print "Strip leading path information from filenames in the report." + + def postcmd(self, stop, line): + if stop: + return stop + return None + + import sys + print "Welcome to the profile statistics browser." + if len(sys.argv) > 1: + initprofile = sys.argv[1] + else: + initprofile = None + try: + ProfileBrowser(initprofile).cmdloop() + print "Goodbye." + except KeyboardInterrupt: + pass + +# That's all, folks. + |