mirror of
https://github.com/volatilityfoundation/volatility
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iMHLv2
59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
# Volatility
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#
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# Authors:
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# Mike Auty <mike.auty@gmail.com>
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#
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# This file is part of Volatility.
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#
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# Volatility is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Volatility is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
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#
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import sys
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import itertools
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import timeit
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class ScanProfInstance(object):
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def __init__(self, func, *args):
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self.func = func
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self.args = args
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self.results = []
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def __call__(self):
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self.results = self.func(*self.args)
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def permscan(self, address_space, offset = 0, maxlen = None):
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times = []
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# Run a warm-up scan to ensure the file is cached as much as possible
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self.oldscan(address_space, offset, maxlen)
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perms = list(itertools.permutations(self.checks))
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for i in range(len(perms)):
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self.checks = perms[i]
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print "Running scan {0}/{1}...".format(i + 1, len(perms))
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profobj = ScanProfInstance(self.oldscan, address_space, offset, maxlen)
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value = timeit.timeit(profobj, number = self.repeats)
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times.append((value, len(list(profobj.results)), i))
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print "Scan results"
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print "{0:20} | {1:7} | {2:6} | {3}".format("Time", "Results", "Perm #", "Ordering")
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for val, l, ordering in sorted(times):
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print "{0:20} | {1:7} | {2:6} | {3}".format(val, l, ordering, perms[ordering])
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sys.exit(1)
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def ScanProfiler(cls, repeats = 3):
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cls.repeats = repeats
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cls.oldscan = cls.scan
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cls.scan = permscan
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return cls
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