/usr/lib/python3/dist-packages/memprof/memprof.py is in python3-memprof 0.3.4-1+b2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | #!/usr/bin/env python
# Copyright (c) 2013 Jose M. Dana
#
# This file is part of memprof.
#
# memprof is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation (version 3 of the License only).
#
# memprof is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with memprof. If not, see <http://www.gnu.org/licenses/>.
import sys
import time
import argparse
import types
from .mp_utils import *
from .getsize import getSize, isInteresting
def memprof(*args, **kwargs):
def inner(func):
return MemProf(func, *args, **kwargs)
# To allow @memprof with parameters
if len(args) and callable(args[0]):
func = args[0]
args = args[1:]
return inner(func)
else:
return inner
class MemProf(object):
def __init__(self, func, threshold=default_threshold, plot=False):
self.func = func
self.__locals = {}
self.__start = -1
self.__prev = -1
self.__cache = {}
self.__refresh = 500000
self.__ticks = 0
self.__checkTimes = []
self.__logfile = "%s.log" % self.func.__name__
self.__plot = self.func.__globals__["memprof_plot"] if "memprof_plot" in self.func.__globals__ else plot
self.threshold = self.func.__globals__["memprof_threshold"] if "memprof_threshold" in self.func.__globals__ else threshold
self.__units, self.__factor = get_units_factor(self.threshold)
self.__log = None
def __get__(self, obj, type=None):
if obj is None:
func = self.func
if not hasattr(func, "__call__"):
self.func = func.__get__(None, ownerClass)
return self
else:
# Return a wrapper that binds self as a method of obj (!)
return types.MethodType(self, obj)
def tracer(self, frame, event, arg):
if event not in ["line", "call", "return"]:
return
self.__ticks += 1
if (event in ["call", "return"] and frame.f_code.co_name == self.func.__name__) or self.__ticks >= self.__refresh:
self.__ticks = 0
self.__locals = dict(list(frame.f_locals.items()) + list(frame.f_globals.items()))
self.__locals.pop('__builtins__', None)
self.__locals.pop('__loader__', None)
self.__locals.pop('__cached__', None)
self.__locals.pop('__package__', None)
self.__locals.pop('__doc__', None)
self.__locals.pop('__name__', None)
self.__locals.pop('__file__', None)
self.checkMem()
return self.tracer
def checkMem(self):
now = time.time()
self.__prev, elapsed = now, now - self.__prev
from_start = now - self.__start
print("\n")
print("*" * 12)
print("%ds (+%ds)" % (from_start, elapsed))
print("*" * 12)
self.__checkTimes.append(from_start)
self.__log.write("%f\n" % from_start)
for item, value in filter(lambda x: (x[1] is not self.__class__) and isInteresting(x[1]), self.__locals.items()):
size = getSize(value)
self.__log.write("%s\t%d\n" % (item, size))
if size > self.threshold:
size /= self.__factor
try:
prev = self.__cache[item][-1]
except (IndexError, KeyError) as e:
prev = 0
self.__cache.setdefault(item, []).append(size)
if len(self.__cache[item]) < len(self.__checkTimes):
self.__cache[item][-1:-1] = [0] * (len(self.__checkTimes) - len(self.__cache[item]))
print("%s: %.2f %s%s" % (item, size, self.__units, "\t(%s%.2f %s)" % ("+" if size-prev > 0 else "", size-prev, self.__units) if prev > 0 else ""))
def __call__(self, *args, **kwargs):
print("memprof starting (min. size: %d)" % (self.threshold))
if self.__start == -1:
self.__prev = self.__start = time.time()
self.__log = open(self.__logfile, "w")
else:
self.__log = open(self.__logfile, "a")
self.__checkTimes.append(self.__prev - self.__start + 0.00000001)
self.__log.write("%f\n" % (self.__prev - self.__start + 0.00000001))
self.__checkTimes.append(time.time() - self.__start)
self.__log.write("%f\n" % (time.time() - self.__start))
self.__log.write("RESTART\n")
for key in self.__cache.keys():
self.__cache[key].append(0)
self.__cache[key].append(0)
curr_tracer = sys.gettrace()
sys.settrace(self.tracer)
res = self.func(*args, **kwargs)
sys.settrace(curr_tracer)
self.__log.close()
self.__ticks = 0
if self.__plot:
gen_plot(self.__logfile, self.threshold)
print("memprof done")
return res
def main():
parser = argparse.ArgumentParser()
parser.add_argument('-t', '--threshold', type=int, default=default_threshold, action='store', help='threshold (default: %d bytes)' % default_threshold)
parser.add_argument('-p', '--plot', action='store_true', default=False, help='Generate plots (default: False)')
args, unknown = parser.parse_known_args()
sys.argv = unknown
if sys.argv == []:
parser.print_help()
sys.exit(1)
__file__ = sys.argv[0]
ns_globals = {}
ns_globals["memprof_plot"] = args.plot
ns_globals["memprof_threshold"] = args.threshold
if PY3:
with open(__file__) as f:
code = compile(f.read(), __file__, 'exec')
exec(code, ns_globals)
else:
execfile(__file__, ns_globals)
if __name__ == '__main__':
main()
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