def swap_memory():
sin, sout = cext.swap_mem()
# XXX
# we are supposed to get total/free by doing so:
# http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/
# usr/src/cmd/swap/swap.c
# ...nevertheless I can't manage to obtain the same numbers as 'swap'
# cmdline utility, so let's parse its output (sigh!)
p = subprocess.Popen(['swap', '-l', '-k'], stdout=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout = stdout.decode(sys.stdout.encoding)
if p.returncode != 0:
raise RuntimeError("'swap -l -k' failed (retcode=%s)" % p.returncode)
lines = stdout.strip().split('\n')[1:]
if not lines:
raise RuntimeError('no swap device(s) configured')
total = free = 0
for line in lines:
line = line.split()
t, f = line[-2:]
t = t.replace('K', '')
f = f.replace('K', '')
total += int(int(t) * 1024)
free += int(int(f) * 1024)
used = total - free
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent,
sin * PAGE_SIZE, sout * PAGE_SIZE)
def swap_memory():
_, _, _, _, total, free = cext.linux_sysinfo()
used = total - free
percent = usage_percent(used, total, _round=1)
# get pgin/pgouts
f = open("/proc/vmstat", "rb")
SIN, SOUT = b('pswpin'), b('pswpout')
sin = sout = None
try:
for line in f:
# values are expressed in 4 kilo bytes, we want bytes instead
if line.startswith(SIN):
sin = int(line.split(b(' '))[1]) * 4 * 1024
elif line.startswith(SOUT):
sout = int(line.split(b(' '))[1]) * 4 * 1024
if sin is not None and sout is not None:
break
else:
# we might get here when dealing with exotic Linux flavors, see:
# http://code.google.com/p/psutil/issues/detail?id=313
msg = "'sin' and 'sout' swap memory stats couldn't " \
"be determined and were set to 0"
warnings.warn(msg, RuntimeWarning)
sin = sout = 0
finally:
f.close()
return _common.sswap(total, used, free, percent, sin, sout)
def swap_memory():
sin, sout = cext.swap_mem()
# XXX
# we are supposed to get total/free by doing so:
# http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/
# usr/src/cmd/swap/swap.c
# ...nevertheless I can't manage to obtain the same numbers as 'swap'
# cmdline utility, so let's parse its output (sigh!)
p = subprocess.Popen(['swap', '-l', '-k'], stdout=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout = stdout.decode(sys.stdout.encoding)
if p.returncode != 0:
raise RuntimeError("'swap -l -k' failed (retcode=%s)" % p.returncode)
lines = stdout.strip().split('\n')[1:]
if not lines:
raise RuntimeError('no swap device(s) configured')
total = free = 0
for line in lines:
line = line.split()
t, f = line[-2:]
t = t.replace('K', '')
f = f.replace('K', '')
total += int(int(t) * 1024)
free += int(int(f) * 1024)
used = total - free
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent,
sin * PAGE_SIZE, sout * PAGE_SIZE)
def swap_memory():
_, _, _, _, total, free = cext.linux_sysinfo()
used = total - free
percent = usage_percent(used, total, _round=1)
# get pgin/pgouts
f = open("/proc/vmstat", "rb")
SIN, SOUT = b('pswpin'), b('pswpout')
sin = sout = None
try:
for line in f:
# values are expressed in 4 kilo bytes, we want bytes instead
if line.startswith(SIN):
sin = int(line.split(b(' '))[1]) * 4 * 1024
elif line.startswith(SOUT):
sout = int(line.split(b(' '))[1]) * 4 * 1024
if sin is not None and sout is not None:
break
else:
# we might get here when dealing with exotic Linux flavors, see:
# https://github.com/giampaolo/psutil/issues/313
msg = "'sin' and 'sout' swap memory stats couldn't " \
"be determined and were set to 0"
warnings.warn(msg, RuntimeWarning)
sin = sout = 0
finally:
f.close()
return _common.sswap(total, used, free, percent, sin, sout)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
mem = cext.virtual_mem()
total = mem[2]
free = mem[3]
used = total - free
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, 0, 0)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
mem = cext.virtual_mem()
total = mem[2]
free = mem[3]
used = total - free
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, 0, 0)
def swap_memory():
_, _, _, _, total, free = cext.linux_sysinfo()
used = total - free
percent = usage_percent(used, total, _round=1)
# get pgin/pgouts
with open("/proc/vmstat", "rb") as f:
sin = sout = None
for line in f:
# values are expressed in 4 kilo bytes, we want bytes instead
if line.startswith(b'pswpin'):
sin = int(line.split(b' ')[1]) * 4 * 1024
elif line.startswith(b'pswpout'):
sout = int(line.split(b' ')[1]) * 4 * 1024
if sin is not None and sout is not None:
break
else:
# we might get here when dealing with exotic Linux flavors, see:
# https://github.com/giampaolo/psutil/issues/313
msg = "'sin' and 'sout' swap memory stats couldn't " \
"be determined and were set to 0"
warnings.warn(msg, RuntimeWarning)
sin = sout = 0
return _common.sswap(total, used, free, percent, sin, sout)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
total, used, free, sin, sout = cext.swap_mem()
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, sin, sout)
def swap_memory():
"""System swap memory as (total, used, free, sin, sout) namedtuple."""
total, used, free, sin, sout = [x * PAGESIZE for x in cext.swap_mem()]
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, sin, sout)
class TestSwapDrivers(BaseTestCase):
fake_swap = sswap(total=17099124736,
used=10,
free=17099124726,
percent=0.0,
sin=0,
sout=0)
scenarios = (
("TotalSwapPuller", {
"puller_factory":
swap.TotalSwapPuller,
"swap_patch":
patch.object(psutil, "swap_memory", Mock(return_value=fake_swap)),
"expected_data":
Measurement(name="compute.node.swap.total",
timestamp="2015-08-04T15:15:45.703542+00:00",
unit="bytes",
type_="gauge",
value=17099124736,
resource_id="test_node",
host="test_node",
resource_metadata={
"host": "test_node",
"title": "swap_total"
})
}),
("FreeSwapPuller", {
"puller_factory":
swap.FreeSwapPuller,
"swap_patch":
patch.object(psutil, "swap_memory", Mock(return_value=fake_swap)),
"expected_data":
Measurement(name="compute.node.swap.free",
timestamp="2015-08-04T15:15:45.703542+00:00",
unit="bytes",
type_="gauge",
value=17099124726,
resource_id="test_node",
host="test_node",
resource_metadata={
"host": "test_node",
"title": "swap_free"
})
}),
("UsedSwapPuller", {
"puller_factory":
swap.UsedSwapPuller,
"swap_patch":
patch.object(psutil, "swap_memory", Mock(return_value=fake_swap)),
"expected_data":
Measurement(name="compute.node.swap.used",
timestamp="2015-08-04T15:15:45.703542+00:00",
unit="bytes",
type_="gauge",
value=10,
resource_id="test_node",
host="test_node",
resource_metadata={
"host": "test_node",
"title": "swap_used"
})
}),
)
@freeze_time("2015-08-04T15:15:45.703542+00:00")
@patch.object(platform, "node", Mock(return_value="test_node"))
def test_swap(self):
data_puller = self.puller_factory(
self.puller_factory.get_name(),
self.puller_factory.get_default_probe_id(),
self.puller_factory.get_default_interval(),
)
with self.swap_patch:
pulled_data = data_puller.do_pull()
self.assertEqual(
[measurement.as_dict() for measurement in pulled_data],
[self.expected_data.as_dict()])
def swap_memory():
"""System swap memory as (total, used, free, sin, sout) namedtuple."""
total, used, free, sin, sout = [x * PAGESIZE for x in cext.swap_mem()]
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, sin, sout)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
total, used, free, sin, sout = cext.swap_mem()
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, sin, sout)
