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647 lines
23 KiB
647 lines
23 KiB
14 years ago
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"""Class for printing reports on profiled python code."""
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# Class for printing reports on profiled python code. rev 1.0 4/1/94
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#
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# Based on prior profile module by Sjoerd Mullender...
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# which was hacked somewhat by: Guido van Rossum
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#
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# see profile.doc and profile.py for more info.
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# Copyright 1994, by InfoSeek Corporation, all rights reserved.
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# Written by James Roskind
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#
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# Permission to use, copy, modify, and distribute this Python software
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# and its associated documentation for any purpose (subject to the
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# restriction in the following sentence) without fee is hereby granted,
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# provided that the above copyright notice appears in all copies, and
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# that both that copyright notice and this permission notice appear in
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# supporting documentation, and that the name of InfoSeek not be used in
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# advertising or publicity pertaining to distribution of the software
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# without specific, written prior permission. This permission is
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# explicitly restricted to the copying and modification of the software
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# to remain in Python, compiled Python, or other languages (such as C)
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# wherein the modified or derived code is exclusively imported into a
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# Python module.
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#
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# INFOSEEK CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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# SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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# FITNESS. IN NO EVENT SHALL INFOSEEK CORPORATION BE LIABLE FOR ANY
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# SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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import os
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import time
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import marshal
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import re
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__all__ = ["Stats"]
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class Stats:
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"""This class is used for creating reports from data generated by the
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Profile class. It is a "friend" of that class, and imports data either
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by direct access to members of Profile class, or by reading in a dictionary
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that was emitted (via marshal) from the Profile class.
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The big change from the previous Profiler (in terms of raw functionality)
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is that an "add()" method has been provided to combine Stats from
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several distinct profile runs. Both the constructor and the add()
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method now take arbitrarily many file names as arguments.
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All the print methods now take an argument that indicates how many lines
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to print. If the arg is a floating point number between 0 and 1.0, then
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it is taken as a decimal percentage of the available lines to be printed
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(e.g., .1 means print 10% of all available lines). If it is an integer,
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it is taken to mean the number of lines of data that you wish to have
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printed.
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The sort_stats() method now processes some additional options (i.e., in
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addition to the old -1, 0, 1, or 2). It takes an arbitrary number of quoted
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strings to select the sort order. For example sort_stats('time', 'name')
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sorts on the major key of "internal function time", and on the minor
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key of 'the name of the function'. Look at the two tables in sort_stats()
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and get_sort_arg_defs(self) for more examples.
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All methods now return "self", so you can string together commands like:
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Stats('foo', 'goo').strip_dirs().sort_stats('calls').\
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print_stats(5).print_callers(5)
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"""
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def __init__(self, *args):
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if not len(args):
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arg = None
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else:
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arg = args[0]
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args = args[1:]
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self.init(arg)
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self.add(*args)
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def init(self, arg):
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self.all_callees = None # calc only if needed
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self.files = []
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self.fcn_list = None
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self.total_tt = 0
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self.total_calls = 0
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self.prim_calls = 0
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self.max_name_len = 0
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self.top_level = {}
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self.stats = {}
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self.sort_arg_dict = {}
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self.load_stats(arg)
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trouble = 1
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try:
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self.get_top_level_stats()
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trouble = 0
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finally:
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if trouble:
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print "Invalid timing data",
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if self.files: print self.files[-1],
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print
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def load_stats(self, arg):
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if not arg: self.stats = {}
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elif type(arg) == type(""):
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f = open(arg, 'rb')
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self.stats = marshal.load(f)
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f.close()
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try:
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file_stats = os.stat(arg)
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arg = time.ctime(file_stats.st_mtime) + " " + arg
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except: # in case this is not unix
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pass
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self.files = [ arg ]
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elif hasattr(arg, 'create_stats'):
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arg.create_stats()
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self.stats = arg.stats
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arg.stats = {}
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if not self.stats:
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raise TypeError, "Cannot create or construct a " \
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+ `self.__class__` \
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+ " object from '" + `arg` + "'"
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return
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def get_top_level_stats(self):
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for func, (cc, nc, tt, ct, callers) in self.stats.items():
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self.total_calls += nc
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self.prim_calls += cc
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self.total_tt += tt
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if callers.has_key(("jprofile", 0, "profiler")):
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self.top_level[func] = None
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if len(func_std_string(func)) > self.max_name_len:
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self.max_name_len = len(func_std_string(func))
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def add(self, *arg_list):
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if not arg_list: return self
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if len(arg_list) > 1: self.add(*arg_list[1:])
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other = arg_list[0]
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if type(self) != type(other) or self.__class__ != other.__class__:
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other = Stats(other)
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self.files += other.files
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self.total_calls += other.total_calls
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self.prim_calls += other.prim_calls
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self.total_tt += other.total_tt
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for func in other.top_level:
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self.top_level[func] = None
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if self.max_name_len < other.max_name_len:
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self.max_name_len = other.max_name_len
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self.fcn_list = None
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for func, stat in other.stats.iteritems():
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if func in self.stats:
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old_func_stat = self.stats[func]
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else:
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old_func_stat = (0, 0, 0, 0, {},)
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self.stats[func] = add_func_stats(old_func_stat, stat)
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return self
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def dump_stats(self, filename):
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"""Write the profile data to a file we know how to load back."""
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f = file(filename, 'wb')
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try:
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marshal.dump(self.stats, f)
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finally:
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f.close()
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# list the tuple indices and directions for sorting,
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# along with some printable description
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sort_arg_dict_default = {
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"calls" : (((1,-1), ), "call count"),
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"cumulative": (((3,-1), ), "cumulative time"),
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"file" : (((4, 1), ), "file name"),
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"line" : (((5, 1), ), "line number"),
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"module" : (((4, 1), ), "file name"),
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"name" : (((6, 1), ), "function name"),
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"nfl" : (((6, 1),(4, 1),(5, 1),), "name/file/line"),
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"pcalls" : (((0,-1), ), "call count"),
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"stdname" : (((7, 1), ), "standard name"),
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"time" : (((2,-1), ), "internal time"),
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}
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def get_sort_arg_defs(self):
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"""Expand all abbreviations that are unique."""
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if not self.sort_arg_dict:
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self.sort_arg_dict = dict = {}
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bad_list = {}
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for word, tup in self.sort_arg_dict_default.iteritems():
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fragment = word
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while fragment:
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if not fragment:
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break
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if fragment in dict:
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bad_list[fragment] = 0
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break
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dict[fragment] = tup
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fragment = fragment[:-1]
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for word in bad_list:
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del dict[word]
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return self.sort_arg_dict
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def sort_stats(self, *field):
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if not field:
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self.fcn_list = 0
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return self
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if len(field) == 1 and type(field[0]) == type(1):
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# Be compatible with old profiler
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field = [ {-1: "stdname",
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0:"calls",
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1:"time",
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2: "cumulative" } [ field[0] ] ]
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sort_arg_defs = self.get_sort_arg_defs()
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sort_tuple = ()
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self.sort_type = ""
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connector = ""
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for word in field:
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sort_tuple = sort_tuple + sort_arg_defs[word][0]
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self.sort_type += connector + sort_arg_defs[word][1]
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connector = ", "
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stats_list = []
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for func, (cc, nc, tt, ct, callers) in self.stats.iteritems():
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stats_list.append((cc, nc, tt, ct) + func +
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(func_std_string(func), func))
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stats_list.sort(TupleComp(sort_tuple).compare)
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self.fcn_list = fcn_list = []
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for tuple in stats_list:
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fcn_list.append(tuple[-1])
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return self
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def reverse_order(self):
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if self.fcn_list:
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self.fcn_list.reverse()
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return self
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def strip_dirs(self):
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oldstats = self.stats
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self.stats = newstats = {}
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max_name_len = 0
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for func, (cc, nc, tt, ct, callers) in oldstats.iteritems():
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newfunc = func_strip_path(func)
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if len(func_std_string(newfunc)) > max_name_len:
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max_name_len = len(func_std_string(newfunc))
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newcallers = {}
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for func2, caller in callers.iteritems():
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newcallers[func_strip_path(func2)] = caller
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if newfunc in newstats:
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newstats[newfunc] = add_func_stats(
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newstats[newfunc],
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(cc, nc, tt, ct, newcallers))
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else:
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newstats[newfunc] = (cc, nc, tt, ct, newcallers)
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old_top = self.top_level
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self.top_level = new_top = {}
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for func in old_top:
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new_top[func_strip_path(func)] = None
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self.max_name_len = max_name_len
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self.fcn_list = None
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self.all_callees = None
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return self
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def calc_callees(self):
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if self.all_callees: return
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self.all_callees = all_callees = {}
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for func, (cc, nc, tt, ct, callers) in self.stats.iteritems():
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if not func in all_callees:
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all_callees[func] = {}
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for func2, caller in callers.iteritems():
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if not func2 in all_callees:
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all_callees[func2] = {}
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all_callees[func2][func] = caller
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return
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#******************************************************************
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# The following functions support actual printing of reports
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#******************************************************************
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# Optional "amount" is either a line count, or a percentage of lines.
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def eval_print_amount(self, sel, list, msg):
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new_list = list
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if type(sel) == type(""):
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new_list = []
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for func in list:
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if re.search(sel, func_std_string(func)):
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new_list.append(func)
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else:
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count = len(list)
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if type(sel) == type(1.0) and 0.0 <= sel < 1.0:
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count = int(count * sel + .5)
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new_list = list[:count]
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elif type(sel) == type(1) and 0 <= sel < count:
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count = sel
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new_list = list[:count]
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if len(list) != len(new_list):
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msg = msg + " List reduced from " + `len(list)` \
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+ " to " + `len(new_list)` + \
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" due to restriction <" + `sel` + ">\n"
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return new_list, msg
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def get_print_list(self, sel_list):
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width = self.max_name_len
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if self.fcn_list:
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list = self.fcn_list[:]
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msg = " Ordered by: " + self.sort_type + '\n'
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else:
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list = self.stats.keys()
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msg = " Random listing order was used\n"
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for selection in sel_list:
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list, msg = self.eval_print_amount(selection, list, msg)
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count = len(list)
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if not list:
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return 0, list
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print msg
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if count < len(self.stats):
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width = 0
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for func in list:
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if len(func_std_string(func)) > width:
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width = len(func_std_string(func))
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return width+2, list
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def print_stats(self, *amount):
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for filename in self.files:
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print filename
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if self.files: print
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indent = ' ' * 8
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for func in self.top_level:
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print indent, func_get_function_name(func)
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print indent, self.total_calls, "function calls",
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if self.total_calls != self.prim_calls:
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print "(%d primitive calls)" % self.prim_calls,
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print "in %.3f CPU seconds" % self.total_tt
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print
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width, list = self.get_print_list(amount)
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if list:
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self.print_title()
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for func in list:
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self.print_line(func)
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print
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print
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return self
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def print_callees(self, *amount):
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width, list = self.get_print_list(amount)
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if list:
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self.calc_callees()
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self.print_call_heading(width, "called...")
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for func in list:
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if func in self.all_callees:
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|
self.print_call_line(width, func, self.all_callees[func])
|
||
|
|
else:
|
||
|
|
self.print_call_line(width, func, {})
|
||
|
|
print
|
||
|
|
print
|
||
|
|
return self
|
||
|
|
|
||
|
|
def print_callers(self, *amount):
|
||
|
|
width, list = self.get_print_list(amount)
|
||
|
|
if list:
|
||
|
|
self.print_call_heading(width, "was called by...")
|
||
|
|
for func in list:
|
||
|
|
cc, nc, tt, ct, callers = self.stats[func]
|
||
|
|
self.print_call_line(width, func, callers)
|
||
|
|
print
|
||
|
|
print
|
||
|
|
return self
|
||
|
|
|
||
|
|
def print_call_heading(self, name_size, column_title):
|
||
|
|
print "Function ".ljust(name_size) + column_title
|
||
|
|
|
||
|
|
def print_call_line(self, name_size, source, call_dict):
|
||
|
|
print func_std_string(source).ljust(name_size),
|
||
|
|
if not call_dict:
|
||
|
|
print "--"
|
||
|
|
return
|
||
|
|
clist = call_dict.keys()
|
||
|
|
clist.sort()
|
||
|
|
name_size = name_size + 1
|
||
|
|
indent = ""
|
||
|
|
for func in clist:
|
||
|
|
name = func_std_string(func)
|
||
|
|
print indent*name_size + name + '(' \
|
||
|
|
+ `call_dict[func]`+')', \
|
||
|
|
f8(self.stats[func][3])
|
||
|
|
indent = " "
|
||
|
|
|
||
|
|
def print_title(self):
|
||
|
|
print ' ncalls tottime percall cumtime percall', \
|
||
|
|
'filename:lineno(function)'
|
||
|
|
|
||
|
|
def print_line(self, func): # hack : should print percentages
|
||
|
|
cc, nc, tt, ct, callers = self.stats[func]
|
||
|
|
c = str(nc)
|
||
|
|
if nc != cc:
|
||
|
|
c = c + '/' + str(cc)
|
||
|
|
print c.rjust(9),
|
||
|
|
print f8(tt),
|
||
|
|
if nc == 0:
|
||
|
|
print ' '*8,
|
||
|
|
else:
|
||
|
|
print f8(tt/nc),
|
||
|
|
print f8(ct),
|
||
|
|
if cc == 0:
|
||
|
|
print ' '*8,
|
||
|
|
else:
|
||
|
|
print f8(ct/cc),
|
||
|
|
print func_std_string(func)
|
||
|
|
|
||
|
|
def ignore(self):
|
||
|
|
# Deprecated since 1.5.1 -- see the docs.
|
||
|
|
pass # has no return value, so use at end of line :-)
|
||
|
|
|
||
|
|
class TupleComp:
|
||
|
|
"""This class provides a generic function for comparing any two tuples.
|
||
|
|
Each instance records a list of tuple-indices (from most significant
|
||
|
|
to least significant), and sort direction (ascending or decending) for
|
||
|
|
each tuple-index. The compare functions can then be used as the function
|
||
|
|
argument to the system sort() function when a list of tuples need to be
|
||
|
|
sorted in the instances order."""
|
||
|
|
|
||
|
|
def __init__(self, comp_select_list):
|
||
|
|
self.comp_select_list = comp_select_list
|
||
|
|
|
||
|
|
def compare (self, left, right):
|
||
|
|
for index, direction in self.comp_select_list:
|
||
|
|
l = left[index]
|
||
|
|
r = right[index]
|
||
|
|
if l < r:
|
||
|
|
return -direction
|
||
|
|
if l > r:
|
||
|
|
return direction
|
||
|
|
return 0
|
||
|
|
|
||
|
|
#**************************************************************************
|
||
|
|
# func_name is a triple (file:string, line:int, name:string)
|
||
|
|
|
||
|
|
def func_strip_path(func_name):
|
||
|
|
filename, line, name = func_name
|
||
|
|
return os.path.basename(filename), line, name
|
||
|
|
|
||
|
|
def func_get_function_name(func):
|
||
|
|
return func[2]
|
||
|
|
|
||
|
|
def func_std_string(func_name): # match what old profile produced
|
||
|
|
return "%s:%d(%s)" % func_name
|
||
|
|
|
||
|
|
#**************************************************************************
|
||
|
|
# The following functions combine statists for pairs functions.
|
||
|
|
# The bulk of the processing involves correctly handling "call" lists,
|
||
|
|
# such as callers and callees.
|
||
|
|
#**************************************************************************
|
||
|
|
|
||
|
|
def add_func_stats(target, source):
|
||
|
|
"""Add together all the stats for two profile entries."""
|
||
|
|
cc, nc, tt, ct, callers = source
|
||
|
|
t_cc, t_nc, t_tt, t_ct, t_callers = target
|
||
|
|
return (cc+t_cc, nc+t_nc, tt+t_tt, ct+t_ct,
|
||
|
|
add_callers(t_callers, callers))
|
||
|
|
|
||
|
|
def add_callers(target, source):
|
||
|
|
"""Combine two caller lists in a single list."""
|
||
|
|
new_callers = {}
|
||
|
|
for func, caller in target.iteritems():
|
||
|
|
new_callers[func] = caller
|
||
|
|
for func, caller in source.iteritems():
|
||
|
|
if func in new_callers:
|
||
|
|
new_callers[func] = caller + new_callers[func]
|
||
|
|
else:
|
||
|
|
new_callers[func] = caller
|
||
|
|
return new_callers
|
||
|
|
|
||
|
|
def count_calls(callers):
|
||
|
|
"""Sum the caller statistics to get total number of calls received."""
|
||
|
|
nc = 0
|
||
|
|
for calls in callers.itervalues():
|
||
|
|
nc += calls
|
||
|
|
return nc
|
||
|
|
|
||
|
|
#**************************************************************************
|
||
|
|
# The following functions support printing of reports
|
||
|
|
#**************************************************************************
|
||
|
|
|
||
|
|
def f8(x):
|
||
|
|
return "%8.3f" % x
|
||
|
|
|
||
|
|
#**************************************************************************
|
||
|
|
# Statistics browser added by ESR, April 2001
|
||
|
|
#**************************************************************************
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
import cmd
|
||
|
|
try:
|
||
|
|
import readline
|
||
|
|
except ImportError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
class ProfileBrowser(cmd.Cmd):
|
||
|
|
def __init__(self, profile=None):
|
||
|
|
cmd.Cmd.__init__(self)
|
||
|
|
self.prompt = "% "
|
||
|
|
if profile is not None:
|
||
|
|
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:
|
||
|
|
getattr(self.stats, fn)(*processed)
|
||
|
|
else:
|
||
|
|
print "No statistics object is loaded."
|
||
|
|
return 0
|
||
|
|
def generic_help(self):
|
||
|
|
print "Arguments may be:"
|
||
|
|
print "* An integer maximum number of entries to print."
|
||
|
|
print "* A decimal fractional number between 0 and 1, controlling"
|
||
|
|
print " what fraction of selected entries to print."
|
||
|
|
print "* A regular expression; only entries with function names"
|
||
|
|
print " that match it are printed."
|
||
|
|
|
||
|
|
def do_add(self, line):
|
||
|
|
self.stats.add(line)
|
||
|
|
return 0
|
||
|
|
def help_add(self):
|
||
|
|
print "Add profile info from given file to current statistics object."
|
||
|
|
|
||
|
|
def do_callees(self, line):
|
||
|
|
return self.generic('print_callees', line)
|
||
|
|
def help_callees(self):
|
||
|
|
print "Print callees statistics from the current stat object."
|
||
|
|
self.generic_help()
|
||
|
|
|
||
|
|
def do_callers(self, line):
|
||
|
|
return self.generic('print_callers', line)
|
||
|
|
def help_callers(self):
|
||
|
|
print "Print callers statistics from the current stat object."
|
||
|
|
self.generic_help()
|
||
|
|
|
||
|
|
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):
|
||
|
|
abbrevs = self.stats.get_sort_arg_defs()
|
||
|
|
if line and not filter(lambda x,a=abbrevs: x not in a,line.split()):
|
||
|
|
self.stats.sort_stats(*line.split())
|
||
|
|
else:
|
||
|
|
print "Valid sort keys (unique prefixes are accepted):"
|
||
|
|
for (key, value) in Stats.sort_arg_dict_default.iteritems():
|
||
|
|
print "%s -- %s" % (key, value[1])
|
||
|
|
return 0
|
||
|
|
def help_sort(self):
|
||
|
|
print "Sort profile data according to specified keys."
|
||
|
|
print "(Typing `sort' without arguments lists valid keys.)"
|
||
|
|
def complete_sort(self, text, *args):
|
||
|
|
return [a for a in Stats.sort_arg_dict_default if a.startswith(text)]
|
||
|
|
|
||
|
|
def do_stats(self, line):
|
||
|
|
return self.generic('print_stats', line)
|
||
|
|
def help_stats(self):
|
||
|
|
print "Print statistics from the current stat object."
|
||
|
|
self.generic_help()
|
||
|
|
|
||
|
|
def do_strip(self, line):
|
||
|
|
self.stats.strip_dirs()
|
||
|
|
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.
|