| 1 | """Class for printing reports on profiled python code."""
|
|---|
| 2 |
|
|---|
| 3 | # Written by James Roskind
|
|---|
| 4 | # Based on prior profile module by Sjoerd Mullender...
|
|---|
| 5 | # which was hacked somewhat by: Guido van Rossum
|
|---|
| 6 |
|
|---|
| 7 | # Copyright Disney Enterprises, Inc. All Rights Reserved.
|
|---|
| 8 | # Licensed to PSF under a Contributor Agreement
|
|---|
| 9 | #
|
|---|
| 10 | # Licensed under the Apache License, Version 2.0 (the "License");
|
|---|
| 11 | # you may not use this file except in compliance with the License.
|
|---|
| 12 | # You may obtain a copy of the License at
|
|---|
| 13 | #
|
|---|
| 14 | # http://www.apache.org/licenses/LICENSE-2.0
|
|---|
| 15 | #
|
|---|
| 16 | # Unless required by applicable law or agreed to in writing, software
|
|---|
| 17 | # distributed under the License is distributed on an "AS IS" BASIS,
|
|---|
| 18 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
|---|
| 19 | # either express or implied. See the License for the specific language
|
|---|
| 20 | # governing permissions and limitations under the License.
|
|---|
| 21 |
|
|---|
| 22 |
|
|---|
| 23 | import sys
|
|---|
| 24 | import os
|
|---|
| 25 | import time
|
|---|
| 26 | import marshal
|
|---|
| 27 | import re
|
|---|
| 28 | from functools import cmp_to_key
|
|---|
| 29 |
|
|---|
| 30 | __all__ = ["Stats"]
|
|---|
| 31 |
|
|---|
| 32 | class Stats:
|
|---|
| 33 | """This class is used for creating reports from data generated by the
|
|---|
| 34 | Profile class. It is a "friend" of that class, and imports data either
|
|---|
| 35 | by direct access to members of Profile class, or by reading in a dictionary
|
|---|
| 36 | that was emitted (via marshal) from the Profile class.
|
|---|
| 37 |
|
|---|
| 38 | The big change from the previous Profiler (in terms of raw functionality)
|
|---|
| 39 | is that an "add()" method has been provided to combine Stats from
|
|---|
| 40 | several distinct profile runs. Both the constructor and the add()
|
|---|
| 41 | method now take arbitrarily many file names as arguments.
|
|---|
| 42 |
|
|---|
| 43 | All the print methods now take an argument that indicates how many lines
|
|---|
| 44 | to print. If the arg is a floating point number between 0 and 1.0, then
|
|---|
| 45 | it is taken as a decimal percentage of the available lines to be printed
|
|---|
| 46 | (e.g., .1 means print 10% of all available lines). If it is an integer,
|
|---|
| 47 | it is taken to mean the number of lines of data that you wish to have
|
|---|
| 48 | printed.
|
|---|
| 49 |
|
|---|
| 50 | The sort_stats() method now processes some additional options (i.e., in
|
|---|
| 51 | addition to the old -1, 0, 1, or 2). It takes an arbitrary number of
|
|---|
| 52 | quoted strings to select the sort order. For example sort_stats('time',
|
|---|
| 53 | 'name') sorts on the major key of 'internal function time', and on the
|
|---|
| 54 | minor key of 'the name of the function'. Look at the two tables in
|
|---|
| 55 | sort_stats() and get_sort_arg_defs(self) for more examples.
|
|---|
| 56 |
|
|---|
| 57 | All methods return self, so you can string together commands like:
|
|---|
| 58 | Stats('foo', 'goo').strip_dirs().sort_stats('calls').\
|
|---|
| 59 | print_stats(5).print_callers(5)
|
|---|
| 60 | """
|
|---|
| 61 |
|
|---|
| 62 | def __init__(self, *args, **kwds):
|
|---|
| 63 | # I can't figure out how to explictly specify a stream keyword arg
|
|---|
| 64 | # with *args:
|
|---|
| 65 | # def __init__(self, *args, stream=sys.stdout): ...
|
|---|
| 66 | # so I use **kwds and sqauwk if something unexpected is passed in.
|
|---|
| 67 | self.stream = sys.stdout
|
|---|
| 68 | if "stream" in kwds:
|
|---|
| 69 | self.stream = kwds["stream"]
|
|---|
| 70 | del kwds["stream"]
|
|---|
| 71 | if kwds:
|
|---|
| 72 | keys = kwds.keys()
|
|---|
| 73 | keys.sort()
|
|---|
| 74 | extras = ", ".join(["%s=%s" % (k, kwds[k]) for k in keys])
|
|---|
| 75 | raise ValueError, "unrecognized keyword args: %s" % extras
|
|---|
| 76 | if not len(args):
|
|---|
| 77 | arg = None
|
|---|
| 78 | else:
|
|---|
| 79 | arg = args[0]
|
|---|
| 80 | args = args[1:]
|
|---|
| 81 | self.init(arg)
|
|---|
| 82 | self.add(*args)
|
|---|
| 83 |
|
|---|
| 84 | def init(self, arg):
|
|---|
| 85 | self.all_callees = None # calc only if needed
|
|---|
| 86 | self.files = []
|
|---|
| 87 | self.fcn_list = None
|
|---|
| 88 | self.total_tt = 0
|
|---|
| 89 | self.total_calls = 0
|
|---|
| 90 | self.prim_calls = 0
|
|---|
| 91 | self.max_name_len = 0
|
|---|
| 92 | self.top_level = {}
|
|---|
| 93 | self.stats = {}
|
|---|
| 94 | self.sort_arg_dict = {}
|
|---|
| 95 | self.load_stats(arg)
|
|---|
| 96 | trouble = 1
|
|---|
| 97 | try:
|
|---|
| 98 | self.get_top_level_stats()
|
|---|
| 99 | trouble = 0
|
|---|
| 100 | finally:
|
|---|
| 101 | if trouble:
|
|---|
| 102 | print >> self.stream, "Invalid timing data",
|
|---|
| 103 | if self.files: print >> self.stream, self.files[-1],
|
|---|
| 104 | print >> self.stream
|
|---|
| 105 |
|
|---|
| 106 | def load_stats(self, arg):
|
|---|
| 107 | if not arg: self.stats = {}
|
|---|
| 108 | elif isinstance(arg, basestring):
|
|---|
| 109 | f = open(arg, 'rb')
|
|---|
| 110 | self.stats = marshal.load(f)
|
|---|
| 111 | f.close()
|
|---|
| 112 | try:
|
|---|
| 113 | file_stats = os.stat(arg)
|
|---|
| 114 | arg = time.ctime(file_stats.st_mtime) + " " + arg
|
|---|
| 115 | except: # in case this is not unix
|
|---|
| 116 | pass
|
|---|
| 117 | self.files = [ arg ]
|
|---|
| 118 | elif hasattr(arg, 'create_stats'):
|
|---|
| 119 | arg.create_stats()
|
|---|
| 120 | self.stats = arg.stats
|
|---|
| 121 | arg.stats = {}
|
|---|
| 122 | if not self.stats:
|
|---|
| 123 | raise TypeError("Cannot create or construct a %r object from %r"
|
|---|
| 124 | % (self.__class__, arg))
|
|---|
| 125 | return
|
|---|
| 126 |
|
|---|
| 127 | def get_top_level_stats(self):
|
|---|
| 128 | for func, (cc, nc, tt, ct, callers) in self.stats.items():
|
|---|
| 129 | self.total_calls += nc
|
|---|
| 130 | self.prim_calls += cc
|
|---|
| 131 | self.total_tt += tt
|
|---|
| 132 | if ("jprofile", 0, "profiler") in callers:
|
|---|
| 133 | self.top_level[func] = None
|
|---|
| 134 | if len(func_std_string(func)) > self.max_name_len:
|
|---|
| 135 | self.max_name_len = len(func_std_string(func))
|
|---|
| 136 |
|
|---|
| 137 | def add(self, *arg_list):
|
|---|
| 138 | if not arg_list: return self
|
|---|
| 139 | if len(arg_list) > 1: self.add(*arg_list[1:])
|
|---|
| 140 | other = arg_list[0]
|
|---|
| 141 | if type(self) != type(other) or self.__class__ != other.__class__:
|
|---|
| 142 | other = Stats(other)
|
|---|
| 143 | self.files += other.files
|
|---|
| 144 | self.total_calls += other.total_calls
|
|---|
| 145 | self.prim_calls += other.prim_calls
|
|---|
| 146 | self.total_tt += other.total_tt
|
|---|
| 147 | for func in other.top_level:
|
|---|
| 148 | self.top_level[func] = None
|
|---|
| 149 |
|
|---|
| 150 | if self.max_name_len < other.max_name_len:
|
|---|
| 151 | self.max_name_len = other.max_name_len
|
|---|
| 152 |
|
|---|
| 153 | self.fcn_list = None
|
|---|
| 154 |
|
|---|
| 155 | for func, stat in other.stats.iteritems():
|
|---|
| 156 | if func in self.stats:
|
|---|
| 157 | old_func_stat = self.stats[func]
|
|---|
| 158 | else:
|
|---|
| 159 | old_func_stat = (0, 0, 0, 0, {},)
|
|---|
| 160 | self.stats[func] = add_func_stats(old_func_stat, stat)
|
|---|
| 161 | return self
|
|---|
| 162 |
|
|---|
| 163 | def dump_stats(self, filename):
|
|---|
| 164 | """Write the profile data to a file we know how to load back."""
|
|---|
| 165 | f = file(filename, 'wb')
|
|---|
| 166 | try:
|
|---|
| 167 | marshal.dump(self.stats, f)
|
|---|
| 168 | finally:
|
|---|
| 169 | f.close()
|
|---|
| 170 |
|
|---|
| 171 | # list the tuple indices and directions for sorting,
|
|---|
| 172 | # along with some printable description
|
|---|
| 173 | sort_arg_dict_default = {
|
|---|
| 174 | "calls" : (((1,-1), ), "call count"),
|
|---|
| 175 | "ncalls" : (((1,-1), ), "call count"),
|
|---|
| 176 | "cumtime" : (((3,-1), ), "cumulative time"),
|
|---|
| 177 | "cumulative": (((3,-1), ), "cumulative time"),
|
|---|
| 178 | "file" : (((4, 1), ), "file name"),
|
|---|
| 179 | "filename" : (((4, 1), ), "file name"),
|
|---|
| 180 | "line" : (((5, 1), ), "line number"),
|
|---|
| 181 | "module" : (((4, 1), ), "file name"),
|
|---|
| 182 | "name" : (((6, 1), ), "function name"),
|
|---|
| 183 | "nfl" : (((6, 1),(4, 1),(5, 1),), "name/file/line"),
|
|---|
| 184 | "pcalls" : (((0,-1), ), "primitive call count"),
|
|---|
| 185 | "stdname" : (((7, 1), ), "standard name"),
|
|---|
| 186 | "time" : (((2,-1), ), "internal time"),
|
|---|
| 187 | "tottime" : (((2,-1), ), "internal time"),
|
|---|
| 188 | }
|
|---|
| 189 |
|
|---|
| 190 | def get_sort_arg_defs(self):
|
|---|
| 191 | """Expand all abbreviations that are unique."""
|
|---|
| 192 | if not self.sort_arg_dict:
|
|---|
| 193 | self.sort_arg_dict = dict = {}
|
|---|
| 194 | bad_list = {}
|
|---|
| 195 | for word, tup in self.sort_arg_dict_default.iteritems():
|
|---|
| 196 | fragment = word
|
|---|
| 197 | while fragment:
|
|---|
| 198 | if not fragment:
|
|---|
| 199 | break
|
|---|
| 200 | if fragment in dict:
|
|---|
| 201 | bad_list[fragment] = 0
|
|---|
| 202 | break
|
|---|
| 203 | dict[fragment] = tup
|
|---|
| 204 | fragment = fragment[:-1]
|
|---|
| 205 | for word in bad_list:
|
|---|
| 206 | del dict[word]
|
|---|
| 207 | return self.sort_arg_dict
|
|---|
| 208 |
|
|---|
| 209 | def sort_stats(self, *field):
|
|---|
| 210 | if not field:
|
|---|
| 211 | self.fcn_list = 0
|
|---|
| 212 | return self
|
|---|
| 213 | if len(field) == 1 and isinstance(field[0], (int, long)):
|
|---|
| 214 | # Be compatible with old profiler
|
|---|
| 215 | field = [ {-1: "stdname",
|
|---|
| 216 | 0: "calls",
|
|---|
| 217 | 1: "time",
|
|---|
| 218 | 2: "cumulative"}[field[0]] ]
|
|---|
| 219 |
|
|---|
| 220 | sort_arg_defs = self.get_sort_arg_defs()
|
|---|
| 221 | sort_tuple = ()
|
|---|
| 222 | self.sort_type = ""
|
|---|
| 223 | connector = ""
|
|---|
| 224 | for word in field:
|
|---|
| 225 | sort_tuple = sort_tuple + sort_arg_defs[word][0]
|
|---|
| 226 | self.sort_type += connector + sort_arg_defs[word][1]
|
|---|
| 227 | connector = ", "
|
|---|
| 228 |
|
|---|
| 229 | stats_list = []
|
|---|
| 230 | for func, (cc, nc, tt, ct, callers) in self.stats.iteritems():
|
|---|
| 231 | stats_list.append((cc, nc, tt, ct) + func +
|
|---|
| 232 | (func_std_string(func), func))
|
|---|
| 233 |
|
|---|
| 234 | stats_list.sort(key=cmp_to_key(TupleComp(sort_tuple).compare))
|
|---|
| 235 |
|
|---|
| 236 | self.fcn_list = fcn_list = []
|
|---|
| 237 | for tuple in stats_list:
|
|---|
| 238 | fcn_list.append(tuple[-1])
|
|---|
| 239 | return self
|
|---|
| 240 |
|
|---|
| 241 | def reverse_order(self):
|
|---|
| 242 | if self.fcn_list:
|
|---|
| 243 | self.fcn_list.reverse()
|
|---|
| 244 | return self
|
|---|
| 245 |
|
|---|
| 246 | def strip_dirs(self):
|
|---|
| 247 | oldstats = self.stats
|
|---|
| 248 | self.stats = newstats = {}
|
|---|
| 249 | max_name_len = 0
|
|---|
| 250 | for func, (cc, nc, tt, ct, callers) in oldstats.iteritems():
|
|---|
| 251 | newfunc = func_strip_path(func)
|
|---|
| 252 | if len(func_std_string(newfunc)) > max_name_len:
|
|---|
| 253 | max_name_len = len(func_std_string(newfunc))
|
|---|
| 254 | newcallers = {}
|
|---|
| 255 | for func2, caller in callers.iteritems():
|
|---|
| 256 | newcallers[func_strip_path(func2)] = caller
|
|---|
| 257 |
|
|---|
| 258 | if newfunc in newstats:
|
|---|
| 259 | newstats[newfunc] = add_func_stats(
|
|---|
| 260 | newstats[newfunc],
|
|---|
| 261 | (cc, nc, tt, ct, newcallers))
|
|---|
| 262 | else:
|
|---|
| 263 | newstats[newfunc] = (cc, nc, tt, ct, newcallers)
|
|---|
| 264 | old_top = self.top_level
|
|---|
| 265 | self.top_level = new_top = {}
|
|---|
| 266 | for func in old_top:
|
|---|
| 267 | new_top[func_strip_path(func)] = None
|
|---|
| 268 |
|
|---|
| 269 | self.max_name_len = max_name_len
|
|---|
| 270 |
|
|---|
| 271 | self.fcn_list = None
|
|---|
| 272 | self.all_callees = None
|
|---|
| 273 | return self
|
|---|
| 274 |
|
|---|
| 275 | def calc_callees(self):
|
|---|
| 276 | if self.all_callees: return
|
|---|
| 277 | self.all_callees = all_callees = {}
|
|---|
| 278 | for func, (cc, nc, tt, ct, callers) in self.stats.iteritems():
|
|---|
| 279 | if not func in all_callees:
|
|---|
| 280 | all_callees[func] = {}
|
|---|
| 281 | for func2, caller in callers.iteritems():
|
|---|
| 282 | if not func2 in all_callees:
|
|---|
| 283 | all_callees[func2] = {}
|
|---|
| 284 | all_callees[func2][func] = caller
|
|---|
| 285 | return
|
|---|
| 286 |
|
|---|
| 287 | #******************************************************************
|
|---|
| 288 | # The following functions support actual printing of reports
|
|---|
| 289 | #******************************************************************
|
|---|
| 290 |
|
|---|
| 291 | # Optional "amount" is either a line count, or a percentage of lines.
|
|---|
| 292 |
|
|---|
| 293 | def eval_print_amount(self, sel, list, msg):
|
|---|
| 294 | new_list = list
|
|---|
| 295 | if isinstance(sel, basestring):
|
|---|
| 296 | try:
|
|---|
| 297 | rex = re.compile(sel)
|
|---|
| 298 | except re.error:
|
|---|
| 299 | msg += " <Invalid regular expression %r>\n" % sel
|
|---|
| 300 | return new_list, msg
|
|---|
| 301 | new_list = []
|
|---|
| 302 | for func in list:
|
|---|
| 303 | if rex.search(func_std_string(func)):
|
|---|
| 304 | new_list.append(func)
|
|---|
| 305 | else:
|
|---|
| 306 | count = len(list)
|
|---|
| 307 | if isinstance(sel, float) and 0.0 <= sel < 1.0:
|
|---|
| 308 | count = int(count * sel + .5)
|
|---|
| 309 | new_list = list[:count]
|
|---|
| 310 | elif isinstance(sel, (int, long)) and 0 <= sel < count:
|
|---|
| 311 | count = sel
|
|---|
| 312 | new_list = list[:count]
|
|---|
| 313 | if len(list) != len(new_list):
|
|---|
| 314 | msg += " List reduced from %r to %r due to restriction <%r>\n" % (
|
|---|
| 315 | len(list), len(new_list), sel)
|
|---|
| 316 |
|
|---|
| 317 | return new_list, msg
|
|---|
| 318 |
|
|---|
| 319 | def get_print_list(self, sel_list):
|
|---|
| 320 | width = self.max_name_len
|
|---|
| 321 | if self.fcn_list:
|
|---|
| 322 | stat_list = self.fcn_list[:]
|
|---|
| 323 | msg = " Ordered by: " + self.sort_type + '\n'
|
|---|
| 324 | else:
|
|---|
| 325 | stat_list = self.stats.keys()
|
|---|
| 326 | msg = " Random listing order was used\n"
|
|---|
| 327 |
|
|---|
| 328 | for selection in sel_list:
|
|---|
| 329 | stat_list, msg = self.eval_print_amount(selection, stat_list, msg)
|
|---|
| 330 |
|
|---|
| 331 | count = len(stat_list)
|
|---|
| 332 |
|
|---|
| 333 | if not stat_list:
|
|---|
| 334 | return 0, stat_list
|
|---|
| 335 | print >> self.stream, msg
|
|---|
| 336 | if count < len(self.stats):
|
|---|
| 337 | width = 0
|
|---|
| 338 | for func in stat_list:
|
|---|
| 339 | if len(func_std_string(func)) > width:
|
|---|
| 340 | width = len(func_std_string(func))
|
|---|
| 341 | return width+2, stat_list
|
|---|
| 342 |
|
|---|
| 343 | def print_stats(self, *amount):
|
|---|
| 344 | for filename in self.files:
|
|---|
| 345 | print >> self.stream, filename
|
|---|
| 346 | if self.files: print >> self.stream
|
|---|
| 347 | indent = ' ' * 8
|
|---|
| 348 | for func in self.top_level:
|
|---|
| 349 | print >> self.stream, indent, func_get_function_name(func)
|
|---|
| 350 |
|
|---|
| 351 | print >> self.stream, indent, self.total_calls, "function calls",
|
|---|
| 352 | if self.total_calls != self.prim_calls:
|
|---|
| 353 | print >> self.stream, "(%d primitive calls)" % self.prim_calls,
|
|---|
| 354 | print >> self.stream, "in %.3f seconds" % self.total_tt
|
|---|
| 355 | print >> self.stream
|
|---|
| 356 | width, list = self.get_print_list(amount)
|
|---|
| 357 | if list:
|
|---|
| 358 | self.print_title()
|
|---|
| 359 | for func in list:
|
|---|
| 360 | self.print_line(func)
|
|---|
| 361 | print >> self.stream
|
|---|
| 362 | print >> self.stream
|
|---|
| 363 | return self
|
|---|
| 364 |
|
|---|
| 365 | def print_callees(self, *amount):
|
|---|
| 366 | width, list = self.get_print_list(amount)
|
|---|
| 367 | if list:
|
|---|
| 368 | self.calc_callees()
|
|---|
| 369 |
|
|---|
| 370 | self.print_call_heading(width, "called...")
|
|---|
| 371 | for func in list:
|
|---|
| 372 | if func in self.all_callees:
|
|---|
| 373 | self.print_call_line(width, func, self.all_callees[func])
|
|---|
| 374 | else:
|
|---|
| 375 | self.print_call_line(width, func, {})
|
|---|
| 376 | print >> self.stream
|
|---|
| 377 | print >> self.stream
|
|---|
| 378 | return self
|
|---|
| 379 |
|
|---|
| 380 | def print_callers(self, *amount):
|
|---|
| 381 | width, list = self.get_print_list(amount)
|
|---|
| 382 | if list:
|
|---|
| 383 | self.print_call_heading(width, "was called by...")
|
|---|
| 384 | for func in list:
|
|---|
| 385 | cc, nc, tt, ct, callers = self.stats[func]
|
|---|
| 386 | self.print_call_line(width, func, callers, "<-")
|
|---|
| 387 | print >> self.stream
|
|---|
| 388 | print >> self.stream
|
|---|
| 389 | return self
|
|---|
| 390 |
|
|---|
| 391 | def print_call_heading(self, name_size, column_title):
|
|---|
| 392 | print >> self.stream, "Function ".ljust(name_size) + column_title
|
|---|
| 393 | # print sub-header only if we have new-style callers
|
|---|
| 394 | subheader = False
|
|---|
| 395 | for cc, nc, tt, ct, callers in self.stats.itervalues():
|
|---|
| 396 | if callers:
|
|---|
| 397 | value = callers.itervalues().next()
|
|---|
| 398 | subheader = isinstance(value, tuple)
|
|---|
| 399 | break
|
|---|
| 400 | if subheader:
|
|---|
| 401 | print >> self.stream, " "*name_size + " ncalls tottime cumtime"
|
|---|
| 402 |
|
|---|
| 403 | def print_call_line(self, name_size, source, call_dict, arrow="->"):
|
|---|
| 404 | print >> self.stream, func_std_string(source).ljust(name_size) + arrow,
|
|---|
| 405 | if not call_dict:
|
|---|
| 406 | print >> self.stream
|
|---|
| 407 | return
|
|---|
| 408 | clist = call_dict.keys()
|
|---|
| 409 | clist.sort()
|
|---|
| 410 | indent = ""
|
|---|
| 411 | for func in clist:
|
|---|
| 412 | name = func_std_string(func)
|
|---|
| 413 | value = call_dict[func]
|
|---|
| 414 | if isinstance(value, tuple):
|
|---|
| 415 | nc, cc, tt, ct = value
|
|---|
| 416 | if nc != cc:
|
|---|
| 417 | substats = '%d/%d' % (nc, cc)
|
|---|
| 418 | else:
|
|---|
| 419 | substats = '%d' % (nc,)
|
|---|
| 420 | substats = '%s %s %s %s' % (substats.rjust(7+2*len(indent)),
|
|---|
| 421 | f8(tt), f8(ct), name)
|
|---|
| 422 | left_width = name_size + 1
|
|---|
| 423 | else:
|
|---|
| 424 | substats = '%s(%r) %s' % (name, value, f8(self.stats[func][3]))
|
|---|
| 425 | left_width = name_size + 3
|
|---|
| 426 | print >> self.stream, indent*left_width + substats
|
|---|
| 427 | indent = " "
|
|---|
| 428 |
|
|---|
| 429 | def print_title(self):
|
|---|
| 430 | print >> self.stream, ' ncalls tottime percall cumtime percall',
|
|---|
| 431 | print >> self.stream, 'filename:lineno(function)'
|
|---|
| 432 |
|
|---|
| 433 | def print_line(self, func): # hack : should print percentages
|
|---|
| 434 | cc, nc, tt, ct, callers = self.stats[func]
|
|---|
| 435 | c = str(nc)
|
|---|
| 436 | if nc != cc:
|
|---|
| 437 | c = c + '/' + str(cc)
|
|---|
| 438 | print >> self.stream, c.rjust(9),
|
|---|
| 439 | print >> self.stream, f8(tt),
|
|---|
| 440 | if nc == 0:
|
|---|
| 441 | print >> self.stream, ' '*8,
|
|---|
| 442 | else:
|
|---|
| 443 | print >> self.stream, f8(float(tt)/nc),
|
|---|
| 444 | print >> self.stream, f8(ct),
|
|---|
| 445 | if cc == 0:
|
|---|
| 446 | print >> self.stream, ' '*8,
|
|---|
| 447 | else:
|
|---|
| 448 | print >> self.stream, f8(float(ct)/cc),
|
|---|
| 449 | print >> self.stream, func_std_string(func)
|
|---|
| 450 |
|
|---|
| 451 | class TupleComp:
|
|---|
| 452 | """This class provides a generic function for comparing any two tuples.
|
|---|
| 453 | Each instance records a list of tuple-indices (from most significant
|
|---|
| 454 | to least significant), and sort direction (ascending or decending) for
|
|---|
| 455 | each tuple-index. The compare functions can then be used as the function
|
|---|
| 456 | argument to the system sort() function when a list of tuples need to be
|
|---|
| 457 | sorted in the instances order."""
|
|---|
| 458 |
|
|---|
| 459 | def __init__(self, comp_select_list):
|
|---|
| 460 | self.comp_select_list = comp_select_list
|
|---|
| 461 |
|
|---|
| 462 | def compare (self, left, right):
|
|---|
| 463 | for index, direction in self.comp_select_list:
|
|---|
| 464 | l = left[index]
|
|---|
| 465 | r = right[index]
|
|---|
| 466 | if l < r:
|
|---|
| 467 | return -direction
|
|---|
| 468 | if l > r:
|
|---|
| 469 | return direction
|
|---|
| 470 | return 0
|
|---|
| 471 |
|
|---|
| 472 | #**************************************************************************
|
|---|
| 473 | # func_name is a triple (file:string, line:int, name:string)
|
|---|
| 474 |
|
|---|
| 475 | def func_strip_path(func_name):
|
|---|
| 476 | filename, line, name = func_name
|
|---|
| 477 | return os.path.basename(filename), line, name
|
|---|
| 478 |
|
|---|
| 479 | def func_get_function_name(func):
|
|---|
| 480 | return func[2]
|
|---|
| 481 |
|
|---|
| 482 | def func_std_string(func_name): # match what old profile produced
|
|---|
| 483 | if func_name[:2] == ('~', 0):
|
|---|
| 484 | # special case for built-in functions
|
|---|
| 485 | name = func_name[2]
|
|---|
| 486 | if name.startswith('<') and name.endswith('>'):
|
|---|
| 487 | return '{%s}' % name[1:-1]
|
|---|
| 488 | else:
|
|---|
| 489 | return name
|
|---|
| 490 | else:
|
|---|
| 491 | return "%s:%d(%s)" % func_name
|
|---|
| 492 |
|
|---|
| 493 | #**************************************************************************
|
|---|
| 494 | # The following functions combine statists for pairs functions.
|
|---|
| 495 | # The bulk of the processing involves correctly handling "call" lists,
|
|---|
| 496 | # such as callers and callees.
|
|---|
| 497 | #**************************************************************************
|
|---|
| 498 |
|
|---|
| 499 | def add_func_stats(target, source):
|
|---|
| 500 | """Add together all the stats for two profile entries."""
|
|---|
| 501 | cc, nc, tt, ct, callers = source
|
|---|
| 502 | t_cc, t_nc, t_tt, t_ct, t_callers = target
|
|---|
| 503 | return (cc+t_cc, nc+t_nc, tt+t_tt, ct+t_ct,
|
|---|
| 504 | add_callers(t_callers, callers))
|
|---|
| 505 |
|
|---|
| 506 | def add_callers(target, source):
|
|---|
| 507 | """Combine two caller lists in a single list."""
|
|---|
| 508 | new_callers = {}
|
|---|
| 509 | for func, caller in target.iteritems():
|
|---|
| 510 | new_callers[func] = caller
|
|---|
| 511 | for func, caller in source.iteritems():
|
|---|
| 512 | if func in new_callers:
|
|---|
| 513 | if isinstance(caller, tuple):
|
|---|
| 514 | # format used by cProfile
|
|---|
| 515 | new_callers[func] = tuple([i[0] + i[1] for i in
|
|---|
| 516 | zip(caller, new_callers[func])])
|
|---|
| 517 | else:
|
|---|
| 518 | # format used by profile
|
|---|
| 519 | new_callers[func] += caller
|
|---|
| 520 | else:
|
|---|
| 521 | new_callers[func] = caller
|
|---|
| 522 | return new_callers
|
|---|
| 523 |
|
|---|
| 524 | def count_calls(callers):
|
|---|
| 525 | """Sum the caller statistics to get total number of calls received."""
|
|---|
| 526 | nc = 0
|
|---|
| 527 | for calls in callers.itervalues():
|
|---|
| 528 | nc += calls
|
|---|
| 529 | return nc
|
|---|
| 530 |
|
|---|
| 531 | #**************************************************************************
|
|---|
| 532 | # The following functions support printing of reports
|
|---|
| 533 | #**************************************************************************
|
|---|
| 534 |
|
|---|
| 535 | def f8(x):
|
|---|
| 536 | return "%8.3f" % x
|
|---|
| 537 |
|
|---|
| 538 | #**************************************************************************
|
|---|
| 539 | # Statistics browser added by ESR, April 2001
|
|---|
| 540 | #**************************************************************************
|
|---|
| 541 |
|
|---|
| 542 | if __name__ == '__main__':
|
|---|
| 543 | import cmd
|
|---|
| 544 | try:
|
|---|
| 545 | import readline
|
|---|
| 546 | except ImportError:
|
|---|
| 547 | pass
|
|---|
| 548 |
|
|---|
| 549 | class ProfileBrowser(cmd.Cmd):
|
|---|
| 550 | def __init__(self, profile=None):
|
|---|
| 551 | cmd.Cmd.__init__(self)
|
|---|
| 552 | self.prompt = "% "
|
|---|
| 553 | self.stats = None
|
|---|
| 554 | self.stream = sys.stdout
|
|---|
| 555 | if profile is not None:
|
|---|
| 556 | self.do_read(profile)
|
|---|
| 557 |
|
|---|
| 558 | def generic(self, fn, line):
|
|---|
| 559 | args = line.split()
|
|---|
| 560 | processed = []
|
|---|
| 561 | for term in args:
|
|---|
| 562 | try:
|
|---|
| 563 | processed.append(int(term))
|
|---|
| 564 | continue
|
|---|
| 565 | except ValueError:
|
|---|
| 566 | pass
|
|---|
| 567 | try:
|
|---|
| 568 | frac = float(term)
|
|---|
| 569 | if frac > 1 or frac < 0:
|
|---|
| 570 | print >> self.stream, "Fraction argument must be in [0, 1]"
|
|---|
| 571 | continue
|
|---|
| 572 | processed.append(frac)
|
|---|
| 573 | continue
|
|---|
| 574 | except ValueError:
|
|---|
| 575 | pass
|
|---|
| 576 | processed.append(term)
|
|---|
| 577 | if self.stats:
|
|---|
| 578 | getattr(self.stats, fn)(*processed)
|
|---|
| 579 | else:
|
|---|
| 580 | print >> self.stream, "No statistics object is loaded."
|
|---|
| 581 | return 0
|
|---|
| 582 | def generic_help(self):
|
|---|
| 583 | print >> self.stream, "Arguments may be:"
|
|---|
| 584 | print >> self.stream, "* An integer maximum number of entries to print."
|
|---|
| 585 | print >> self.stream, "* A decimal fractional number between 0 and 1, controlling"
|
|---|
| 586 | print >> self.stream, " what fraction of selected entries to print."
|
|---|
| 587 | print >> self.stream, "* A regular expression; only entries with function names"
|
|---|
| 588 | print >> self.stream, " that match it are printed."
|
|---|
| 589 |
|
|---|
| 590 | def do_add(self, line):
|
|---|
| 591 | if self.stats:
|
|---|
| 592 | self.stats.add(line)
|
|---|
| 593 | else:
|
|---|
| 594 | print >> self.stream, "No statistics object is loaded."
|
|---|
| 595 | return 0
|
|---|
| 596 | def help_add(self):
|
|---|
| 597 | print >> self.stream, "Add profile info from given file to current statistics object."
|
|---|
| 598 |
|
|---|
| 599 | def do_callees(self, line):
|
|---|
| 600 | return self.generic('print_callees', line)
|
|---|
| 601 | def help_callees(self):
|
|---|
| 602 | print >> self.stream, "Print callees statistics from the current stat object."
|
|---|
| 603 | self.generic_help()
|
|---|
| 604 |
|
|---|
| 605 | def do_callers(self, line):
|
|---|
| 606 | return self.generic('print_callers', line)
|
|---|
| 607 | def help_callers(self):
|
|---|
| 608 | print >> self.stream, "Print callers statistics from the current stat object."
|
|---|
| 609 | self.generic_help()
|
|---|
| 610 |
|
|---|
| 611 | def do_EOF(self, line):
|
|---|
| 612 | print >> self.stream, ""
|
|---|
| 613 | return 1
|
|---|
| 614 | def help_EOF(self):
|
|---|
| 615 | print >> self.stream, "Leave the profile brower."
|
|---|
| 616 |
|
|---|
| 617 | def do_quit(self, line):
|
|---|
| 618 | return 1
|
|---|
| 619 | def help_quit(self):
|
|---|
| 620 | print >> self.stream, "Leave the profile brower."
|
|---|
| 621 |
|
|---|
| 622 | def do_read(self, line):
|
|---|
| 623 | if line:
|
|---|
| 624 | try:
|
|---|
| 625 | self.stats = Stats(line)
|
|---|
| 626 | except IOError, args:
|
|---|
| 627 | print >> self.stream, args[1]
|
|---|
| 628 | return
|
|---|
| 629 | except Exception as err:
|
|---|
| 630 | print >> self.stream, err.__class__.__name__ + ':', err
|
|---|
| 631 | return
|
|---|
| 632 | self.prompt = line + "% "
|
|---|
| 633 | elif len(self.prompt) > 2:
|
|---|
| 634 | line = self.prompt[:-2]
|
|---|
| 635 | self.do_read(line)
|
|---|
| 636 | else:
|
|---|
| 637 | print >> self.stream, "No statistics object is current -- cannot reload."
|
|---|
| 638 | return 0
|
|---|
| 639 | def help_read(self):
|
|---|
| 640 | print >> self.stream, "Read in profile data from a specified file."
|
|---|
| 641 | print >> self.stream, "Without argument, reload the current file."
|
|---|
| 642 |
|
|---|
| 643 | def do_reverse(self, line):
|
|---|
| 644 | if self.stats:
|
|---|
| 645 | self.stats.reverse_order()
|
|---|
| 646 | else:
|
|---|
| 647 | print >> self.stream, "No statistics object is loaded."
|
|---|
| 648 | return 0
|
|---|
| 649 | def help_reverse(self):
|
|---|
| 650 | print >> self.stream, "Reverse the sort order of the profiling report."
|
|---|
| 651 |
|
|---|
| 652 | def do_sort(self, line):
|
|---|
| 653 | if not self.stats:
|
|---|
| 654 | print >> self.stream, "No statistics object is loaded."
|
|---|
| 655 | return
|
|---|
| 656 | abbrevs = self.stats.get_sort_arg_defs()
|
|---|
| 657 | if line and all((x in abbrevs) for x in line.split()):
|
|---|
| 658 | self.stats.sort_stats(*line.split())
|
|---|
| 659 | else:
|
|---|
| 660 | print >> self.stream, "Valid sort keys (unique prefixes are accepted):"
|
|---|
| 661 | for (key, value) in Stats.sort_arg_dict_default.iteritems():
|
|---|
| 662 | print >> self.stream, "%s -- %s" % (key, value[1])
|
|---|
| 663 | return 0
|
|---|
| 664 | def help_sort(self):
|
|---|
| 665 | print >> self.stream, "Sort profile data according to specified keys."
|
|---|
| 666 | print >> self.stream, "(Typing `sort' without arguments lists valid keys.)"
|
|---|
| 667 | def complete_sort(self, text, *args):
|
|---|
| 668 | return [a for a in Stats.sort_arg_dict_default if a.startswith(text)]
|
|---|
| 669 |
|
|---|
| 670 | def do_stats(self, line):
|
|---|
| 671 | return self.generic('print_stats', line)
|
|---|
| 672 | def help_stats(self):
|
|---|
| 673 | print >> self.stream, "Print statistics from the current stat object."
|
|---|
| 674 | self.generic_help()
|
|---|
| 675 |
|
|---|
| 676 | def do_strip(self, line):
|
|---|
| 677 | if self.stats:
|
|---|
| 678 | self.stats.strip_dirs()
|
|---|
| 679 | else:
|
|---|
| 680 | print >> self.stream, "No statistics object is loaded."
|
|---|
| 681 | def help_strip(self):
|
|---|
| 682 | print >> self.stream, "Strip leading path information from filenames in the report."
|
|---|
| 683 |
|
|---|
| 684 | def help_help(self):
|
|---|
| 685 | print >> self.stream, "Show help for a given command."
|
|---|
| 686 |
|
|---|
| 687 | def postcmd(self, stop, line):
|
|---|
| 688 | if stop:
|
|---|
| 689 | return stop
|
|---|
| 690 | return None
|
|---|
| 691 |
|
|---|
| 692 | import sys
|
|---|
| 693 | if len(sys.argv) > 1:
|
|---|
| 694 | initprofile = sys.argv[1]
|
|---|
| 695 | else:
|
|---|
| 696 | initprofile = None
|
|---|
| 697 | try:
|
|---|
| 698 | browser = ProfileBrowser(initprofile)
|
|---|
| 699 | print >> browser.stream, "Welcome to the profile statistics browser."
|
|---|
| 700 | browser.cmdloop()
|
|---|
| 701 | print >> browser.stream, "Goodbye."
|
|---|
| 702 | except KeyboardInterrupt:
|
|---|
| 703 | pass
|
|---|
| 704 |
|
|---|
| 705 | # That's all, folks.
|
|---|
