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123 lines
4.4 KiB
Python
123 lines
4.4 KiB
Python
#!/usr/bin/env python
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#
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# $Id: _linux.py 1498 2012-07-24 21:41:28Z g.rodola $
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#
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# Copyright (c) 2009, Jay Loden, Giampaolo Rodola'. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Linux specific tests. These are implicitly run by test_psutil.py."""
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from __future__ import division
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import unittest
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import subprocess
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import sys
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import time
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import os
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from test_psutil import sh, get_test_subprocess
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from psutil._compat import PY3
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import psutil
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TOLERANCE = 200 * 1024 # 200 KB
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class LinuxSpecificTestCase(unittest.TestCase):
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def assert_eq_w_tol(self, first, second, tolerance):
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difference = abs(first - second)
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if difference <= tolerance:
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return
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msg = '%r != %r within %r delta (%r difference)' \
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% (first, second, tolerance, difference)
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raise AssertionError(msg)
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def test_disks(self):
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# test psutil.disk_usage() and psutil.disk_partitions()
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# against "df -a"
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def df(path):
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out = sh('df -P -B 1 "%s"' % path).strip()
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lines = out.split('\n')
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lines.pop(0)
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line = lines.pop(0)
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dev, total, used, free = line.split()[:4]
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if dev == 'none':
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dev = ''
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total, used, free = int(total), int(used), int(free)
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return dev, total, used, free
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for part in psutil.disk_partitions(all=False):
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usage = psutil.disk_usage(part.mountpoint)
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dev, total, used, free = df(part.mountpoint)
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self.assertEqual(part.device, dev)
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self.assertEqual(usage.total, total)
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# 10 MB tollerance
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if abs(usage.free - free) > 10 * 1024 * 1024:
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self.fail("psutil=%s, df=%s" % (usage.free, free))
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if abs(usage.used - used) > 10 * 1024 * 1024:
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self.fail("psutil=%s, df=%s" % (usage.used, used))
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def test_memory_maps(self):
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sproc = get_test_subprocess()
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time.sleep(1)
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p = psutil.Process(sproc.pid)
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maps = p.get_memory_maps(grouped=False)
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pmap = sh('pmap -x %s' % p.pid).split('\n')
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del pmap[0]; del pmap[0] # get rid of header
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while maps and pmap:
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this = maps.pop(0)
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other = pmap.pop(0)
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addr, _, rss, dirty, mode, path = other.split(None, 5)
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if not path.startswith('[') and not path.endswith(']'):
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self.assertEqual(path, os.path.basename(this.path))
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self.assertEqual(int(rss) * 1024, this.rss)
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# test only rwx chars, ignore 's' and 'p'
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self.assertEqual(mode[:3], this.perms[:3])
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def test_vmem_total(self):
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lines = sh('free').split('\n')[1:]
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total = int(lines[0].split()[1]) * 1024
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self.assertEqual(total, psutil.virtual_memory().total)
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def test_vmem_used(self):
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lines = sh('free').split('\n')[1:]
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used = int(lines[0].split()[2]) * 1024
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self.assert_eq_w_tol(used, psutil.virtual_memory().used, TOLERANCE)
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def test_vmem_free(self):
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lines = sh('free').split('\n')[1:]
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free = int(lines[0].split()[3]) * 1024
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self.assert_eq_w_tol(free, psutil.virtual_memory().free, TOLERANCE)
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def test_vmem_buffers(self):
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lines = sh('free').split('\n')[1:]
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buffers = int(lines[0].split()[5]) * 1024
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self.assert_eq_w_tol(buffers, psutil.virtual_memory().buffers, TOLERANCE)
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def test_vmem_cached(self):
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lines = sh('free').split('\n')[1:]
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cached = int(lines[0].split()[6]) * 1024
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self.assert_eq_w_tol(cached, psutil.virtual_memory().cached, TOLERANCE)
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def test_swapmem_total(self):
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lines = sh('free').split('\n')[1:]
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total = int(lines[2].split()[1]) * 1024
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self.assertEqual(total, psutil.swap_memory().total)
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def test_swapmem_used(self):
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lines = sh('free').split('\n')[1:]
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used = int(lines[2].split()[2]) * 1024
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self.assert_eq_w_tol(used, psutil.swap_memory().used, TOLERANCE)
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def test_swapmem_free(self):
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lines = sh('free').split('\n')[1:]
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free = int(lines[2].split()[3]) * 1024
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self.assert_eq_w_tol(free, psutil.swap_memory().free, TOLERANCE)
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if __name__ == '__main__':
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test_suite = unittest.TestSuite()
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test_suite.addTest(unittest.makeSuite(LinuxSpecificTestCase))
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unittest.TextTestRunner(verbosity=2).run(test_suite)
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