def test_cpu_times(self):
fields = psutil.cpu_times()._fields
kernel_ver = re.findall('\d+\.\d+\.\d+', os.uname()[2])[0]
kernel_ver_info = tuple(map(int, kernel_ver.split('.')))
if kernel_ver_info >= (2, 6, 11):
self.assertIn('steal', fields)
else:
self.assertNotIn('steal', fields)
if kernel_ver_info >= (2, 6, 24):
self.assertIn('guest', fields)
else:
self.assertNotIn('guest', fields)
if kernel_ver_info >= (3, 2, 0):
self.assertIn('guest_nice', fields)
else:
self.assertNotIn('guest_nice', fields)
python类cpu_times()的实例源码
def test_serialization(self):
def check(ret):
if json is not None:
json.loads(json.dumps(ret))
a = pickle.dumps(ret)
b = pickle.loads(a)
self.assertEqual(ret, b)
check(psutil.Process().as_dict())
check(psutil.virtual_memory())
check(psutil.swap_memory())
check(psutil.cpu_times())
check(psutil.cpu_times_percent(interval=0))
check(psutil.net_io_counters())
if LINUX and not os.path.exists('/proc/diskstats'):
pass
else:
if not APPVEYOR:
check(psutil.disk_io_counters())
check(psutil.disk_partitions())
check(psutil.disk_usage(os.getcwd()))
check(psutil.users())
def test_oneshot_twice(self):
# Test the case where the ctx manager is __enter__ed twice.
# The second __enter__ is supposed to resut in a NOOP.
with mock.patch("psutil._psplatform.Process.cpu_times") as m1:
with mock.patch("psutil._psplatform.Process.oneshot_enter") as m2:
p = psutil.Process()
with p.oneshot():
p.cpu_times()
p.cpu_times()
with p.oneshot():
p.cpu_times()
p.cpu_times()
self.assertEqual(m1.call_count, 1)
self.assertEqual(m2.call_count, 1)
with mock.patch("psutil._psplatform.Process.cpu_times") as m:
p.cpu_times()
p.cpu_times()
self.assertEqual(m.call_count, 2)
def test_Popen(self):
# XXX this test causes a ResourceWarning on Python 3 because
# psutil.__subproc instance doesn't get propertly freed.
# Not sure what to do though.
cmd = [PYTHON, "-c", "import time; time.sleep(60);"]
proc = psutil.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
try:
proc.name()
proc.cpu_times()
proc.stdin
self.assertTrue(dir(proc))
self.assertRaises(AttributeError, getattr, proc, 'foo')
finally:
proc.kill()
proc.wait()
def test_cpu_times(self):
fields = psutil.cpu_times()._fields
kernel_ver = re.findall('\d+\.\d+\.\d+', os.uname()[2])[0]
kernel_ver_info = tuple(map(int, kernel_ver.split('.')))
if kernel_ver_info >= (2, 6, 11):
self.assertIn('steal', fields)
else:
self.assertNotIn('steal', fields)
if kernel_ver_info >= (2, 6, 24):
self.assertIn('guest', fields)
else:
self.assertNotIn('guest', fields)
if kernel_ver_info >= (3, 2, 0):
self.assertIn('guest_nice', fields)
else:
self.assertNotIn('guest_nice', fields)
def test_serialization(self):
def check(ret):
if json is not None:
json.loads(json.dumps(ret))
a = pickle.dumps(ret)
b = pickle.loads(a)
self.assertEqual(ret, b)
check(psutil.Process().as_dict())
check(psutil.virtual_memory())
check(psutil.swap_memory())
check(psutil.cpu_times())
check(psutil.cpu_times_percent(interval=0))
check(psutil.net_io_counters())
if LINUX and not os.path.exists('/proc/diskstats'):
pass
else:
if not APPVEYOR:
check(psutil.disk_io_counters())
check(psutil.disk_partitions())
check(psutil.disk_usage(os.getcwd()))
check(psutil.users())
def test_oneshot_twice(self):
# Test the case where the ctx manager is __enter__ed twice.
# The second __enter__ is supposed to resut in a NOOP.
with mock.patch("psutil._psplatform.Process.cpu_times") as m1:
with mock.patch("psutil._psplatform.Process.oneshot_enter") as m2:
p = psutil.Process()
with p.oneshot():
p.cpu_times()
p.cpu_times()
with p.oneshot():
p.cpu_times()
p.cpu_times()
self.assertEqual(m1.call_count, 1)
self.assertEqual(m2.call_count, 1)
with mock.patch("psutil._psplatform.Process.cpu_times") as m:
p.cpu_times()
p.cpu_times()
self.assertEqual(m.call_count, 2)
def test_Popen(self):
# XXX this test causes a ResourceWarning on Python 3 because
# psutil.__subproc instance doesn't get propertly freed.
# Not sure what to do though.
cmd = [PYTHON, "-c", "import time; time.sleep(60);"]
proc = psutil.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
try:
proc.name()
proc.cpu_times()
proc.stdin
self.assertTrue(dir(proc))
self.assertRaises(AttributeError, getattr, proc, 'foo')
finally:
proc.kill()
proc.wait()
def test_cpu_times(self):
fields = psutil.cpu_times()._fields
kernel_ver = re.findall('\d+\.\d+\.\d+', os.uname()[2])[0]
kernel_ver_info = tuple(map(int, kernel_ver.split('.')))
if kernel_ver_info >= (2, 6, 11):
self.assertIn('steal', fields)
else:
self.assertNotIn('steal', fields)
if kernel_ver_info >= (2, 6, 24):
self.assertIn('guest', fields)
else:
self.assertNotIn('guest', fields)
if kernel_ver_info >= (3, 2, 0):
self.assertIn('guest_nice', fields)
else:
self.assertNotIn('guest_nice', fields)
def test_serialization(self):
def check(ret):
if json is not None:
json.loads(json.dumps(ret))
a = pickle.dumps(ret)
b = pickle.loads(a)
self.assertEqual(ret, b)
check(psutil.Process().as_dict())
check(psutil.virtual_memory())
check(psutil.swap_memory())
check(psutil.cpu_times())
check(psutil.cpu_times_percent(interval=0))
check(psutil.net_io_counters())
if LINUX and not os.path.exists('/proc/diskstats'):
pass
else:
if not APPVEYOR:
check(psutil.disk_io_counters())
check(psutil.disk_partitions())
check(psutil.disk_usage(os.getcwd()))
check(psutil.users())
def test_oneshot_twice(self):
# Test the case where the ctx manager is __enter__ed twice.
# The second __enter__ is supposed to resut in a NOOP.
with mock.patch("psutil._psplatform.Process.cpu_times") as m1:
with mock.patch("psutil._psplatform.Process.oneshot_enter") as m2:
p = psutil.Process()
with p.oneshot():
p.cpu_times()
p.cpu_times()
with p.oneshot():
p.cpu_times()
p.cpu_times()
self.assertEqual(m1.call_count, 1)
self.assertEqual(m2.call_count, 1)
with mock.patch("psutil._psplatform.Process.cpu_times") as m:
p.cpu_times()
p.cpu_times()
self.assertEqual(m.call_count, 2)
def test_Popen(self):
# XXX this test causes a ResourceWarning on Python 3 because
# psutil.__subproc instance doesn't get propertly freed.
# Not sure what to do though.
cmd = [PYTHON, "-c", "import time; time.sleep(60);"]
proc = psutil.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
try:
proc.name()
proc.cpu_times()
proc.stdin
self.assertTrue(dir(proc))
self.assertRaises(AttributeError, getattr, proc, 'foo')
finally:
proc.kill()
proc.wait()
getSystemStatus.py 文件源码
项目：LinuxBashShellScriptForOps
作者: DingGuodong
项目源码
文件源码
阅读 27
收藏 0
点赞 0
评论 0
def getLoadAverage():
if linux:
import multiprocessing
k = 1.0
k /= multiprocessing.cpu_count()
if os.path.exists('/proc/loadavg'):
return [float(open('/proc/loadavg').read().split()[x]) * k for x in range(3)]
else:
tokens = subprocess.check_output(['uptime']).split()
return [float(x.strip(',')) * k for x in tokens[-3:]]
if mswindows:
# TODO(Guodong Ding) get this field data like on Linux for Windows
# print psutil.cpu_percent()
# print psutil.cpu_times_percent()
# print psutil.cpu_times()
# print psutil.cpu_stats()
return "%.2f%%" % psutil.cpu_percent()
def test_cpu_times(self):
self.execute(self.proc.cpu_times)
def test_cpu_times(self):
self.execute(psutil.cpu_times)
def test_per_cpu_times(self):
self.execute(psutil.cpu_times, percpu=True)
def test_cpu_times(self):
times = psutil.Process().cpu_times()
assert (times.user > 0.0) or (times.system > 0.0), times
assert (times.children_user >= 0.0), times
assert (times.children_system >= 0.0), times
# make sure returned values can be pretty printed with strftime
for name in times._fields:
time.strftime("%H:%M:%S", time.localtime(getattr(times, name)))
# Test Process.cpu_times() against os.times()
# os.times() is broken on Python 2.6
# http://bugs.python.org/issue1040026
# XXX fails on OSX: not sure if it's for os.times(). We should
# try this with Python 2.7 and re-enable the test.
def test_cpu_times_2(self):
user_time, kernel_time = psutil.Process().cpu_times()[:2]
utime, ktime = os.times()[:2]
# Use os.times()[:2] as base values to compare our results
# using a tolerance of +/- 0.1 seconds.
# It will fail if the difference between the values is > 0.1s.
if (max([user_time, utime]) - min([user_time, utime])) > 0.1:
self.fail("expected: %s, found: %s" % (utime, user_time))
if (max([kernel_time, ktime]) - min([kernel_time, ktime])) > 0.1:
self.fail("expected: %s, found: %s" % (ktime, kernel_time))
def test_threads_2(self):
sproc = get_test_subprocess()
p = psutil.Process(sproc.pid)
if OPENBSD:
try:
p.threads()
except psutil.AccessDenied:
raise unittest.SkipTest(
"on OpenBSD this requires root access")
self.assertAlmostEqual(
p.cpu_times().user,
sum([x.user_time for x in p.threads()]), delta=0.1)
self.assertAlmostEqual(
p.cpu_times().system,
sum([x.system_time for x in p.threads()]), delta=0.1)
def test_cpu_affinity(self):
p = psutil.Process()
initial = p.cpu_affinity()
if hasattr(os, "sched_getaffinity"):
self.assertEqual(initial, list(os.sched_getaffinity(p.pid)))
self.assertEqual(len(initial), len(set(initial)))
all_cpus = list(range(len(psutil.cpu_percent(percpu=True))))
# setting on travis doesn't seem to work (always return all
# CPUs on get):
# AssertionError: Lists differ: [0, 1, 2, 3, 4, 5, 6, ... != [0]
for n in all_cpus:
p.cpu_affinity([n])
self.assertEqual(p.cpu_affinity(), [n])
if hasattr(os, "sched_getaffinity"):
self.assertEqual(p.cpu_affinity(),
list(os.sched_getaffinity(p.pid)))
#
p.cpu_affinity(all_cpus)
self.assertEqual(p.cpu_affinity(), all_cpus)
if hasattr(os, "sched_getaffinity"):
self.assertEqual(p.cpu_affinity(),
list(os.sched_getaffinity(p.pid)))
#
self.assertRaises(TypeError, p.cpu_affinity, 1)
p.cpu_affinity(initial)
# it should work with all iterables, not only lists
p.cpu_affinity(set(all_cpus))
p.cpu_affinity(tuple(all_cpus))
invalid_cpu = [len(psutil.cpu_times(percpu=True)) + 10]
self.assertRaises(ValueError, p.cpu_affinity, invalid_cpu)
self.assertRaises(ValueError, p.cpu_affinity, range(10000, 11000))
self.assertRaises(TypeError, p.cpu_affinity, [0, "1"])
self.assertRaises(ValueError, p.cpu_affinity, [0, -1])
# TODO: #595
def cpu_times(self, ret, proc):
self.assertTrue(ret.user >= 0)
self.assertTrue(ret.system >= 0)
def test_cpu_count(self):
logical = psutil.cpu_count()
self.assertEqual(logical, len(psutil.cpu_times(percpu=True)))
self.assertGreaterEqual(logical, 1)
#
if os.path.exists("/proc/cpuinfo"):
with open("/proc/cpuinfo") as fd:
cpuinfo_data = fd.read()
if "physical id" not in cpuinfo_data:
raise unittest.SkipTest("cpuinfo doesn't include physical id")
physical = psutil.cpu_count(logical=False)
self.assertGreaterEqual(physical, 1)
self.assertGreaterEqual(logical, physical)
def test_cpu_times(self):
# Check type, value >= 0, str().
total = 0
times = psutil.cpu_times()
sum(times)
for cp_time in times:
self.assertIsInstance(cp_time, float)
self.assertGreaterEqual(cp_time, 0.0)
total += cp_time
self.assertEqual(total, sum(times))
str(times)
# CPU times are always supposed to increase over time
# or at least remain the same and that's because time
# cannot go backwards.
# Surprisingly sometimes this might not be the case (at
# least on Windows and Linux), see:
# https://github.com/giampaolo/psutil/issues/392
# https://github.com/giampaolo/psutil/issues/645
# if not WINDOWS:
# last = psutil.cpu_times()
# for x in range(100):
# new = psutil.cpu_times()
# for field in new._fields:
# new_t = getattr(new, field)
# last_t = getattr(last, field)
# self.assertGreaterEqual(new_t, last_t,
# msg="%s %s" % (new_t, last_t))
# last = new
def test_per_cpu_times(self):
# Check type, value >= 0, str().
for times in psutil.cpu_times(percpu=True):
total = 0
sum(times)
for cp_time in times:
self.assertIsInstance(cp_time, float)
self.assertGreaterEqual(cp_time, 0.0)
total += cp_time
self.assertEqual(total, sum(times))
str(times)
self.assertEqual(len(psutil.cpu_times(percpu=True)[0]),
len(psutil.cpu_times(percpu=False)))
# Note: in theory CPU times are always supposed to increase over
# time or remain the same but never go backwards. In practice
# sometimes this is not the case.
# This issue seemd to be afflict Windows:
# https://github.com/giampaolo/psutil/issues/392
# ...but it turns out also Linux (rarely) behaves the same.
# last = psutil.cpu_times(percpu=True)
# for x in range(100):
# new = psutil.cpu_times(percpu=True)
# for index in range(len(new)):
# newcpu = new[index]
# lastcpu = last[index]
# for field in newcpu._fields:
# new_t = getattr(newcpu, field)
# last_t = getattr(lastcpu, field)
# self.assertGreaterEqual(
# new_t, last_t, msg="%s %s" % (lastcpu, newcpu))
# last = new
def test_per_cpu_times_2(self):
# Simulate some work load then make sure time have increased
# between calls.
tot1 = psutil.cpu_times(percpu=True)
stop_at = time.time() + 0.1
while True:
if time.time() >= stop_at:
break
tot2 = psutil.cpu_times(percpu=True)
for t1, t2 in zip(tot1, tot2):
t1, t2 = sum(t1), sum(t2)
difference = t2 - t1
if difference >= 0.05:
return
self.fail()
def test_cpu_times_comparison(self):
# Make sure the sum of all per cpu times is almost equal to
# base "one cpu" times.
base = psutil.cpu_times()
per_cpu = psutil.cpu_times(percpu=True)
summed_values = base._make([sum(num) for num in zip(*per_cpu)])
for field in base._fields:
self.assertAlmostEqual(
getattr(base, field), getattr(summed_values, field), delta=1)
def test_per_cpu_times_percent_negative(self):
# see: https://github.com/giampaolo/psutil/issues/645
psutil.cpu_times_percent(percpu=True)
zero_times = [x._make([0 for x in range(len(x._fields))])
for x in psutil.cpu_times(percpu=True)]
with mock.patch('psutil.cpu_times', return_value=zero_times):
for cpu in psutil.cpu_times_percent(percpu=True):
for percent in cpu:
self._test_cpu_percent(percent, None, None)
def cpu_times(pid):
return psutil.Process(pid).cpu_times()
def times():
return psutil.cpu_times()
def get_cpu_usage(self):
"""Return dict with overall CPU usage"""
usage = {}
try:
fields = ('user', 'system', 'idle', 'nice', 'iowait', 'irq', 'softirq', 'steal')
usage = {key: value for key, value in psutil.cpu_times()._asdict().items() if key in fields}
usage['total'] = round(sum(usage.values()), 2)
except:
exception('Error getting CPU usage info')
return usage
