def _parse_proc_cgroups(self):
"""Parse /proc/cgroups"""
"""
#subsys_name hierarchy num_cgroups enabled
cpuset 0 1 1
ns 0 1 1
cpu 1 10 1
cpuacct 0 1 1
memory 0 1 1
devices 0 1 1
freezer 0 1 1
net_cls 0 1 1
"""
for line in fileops.readlines('/proc/cgroups'):
m = self._RE_CGROUPS.match(line)
if m is None:
continue
name = m.group('name')
hierarchy = int(m.group('hier'))
n_cgroups = int(m.group('n'))
if m.group('enabled') == '1':
enabled = True
else:
enabled = False
if name not in self:
self[name] = {}
self[name]['name'] = name
self[name]['hierarchy'] = hierarchy
self[name]['num_cgroups'] = n_cgroups
self[name]['enabled'] = enabled
def _parse_proc_cgroups(self):
"""Parse /proc/cgroups"""
"""
#subsys_name hierarchy num_cgroups enabled
cpuset 0 1 1
ns 0 1 1
cpu 1 10 1
cpuacct 0 1 1
memory 0 1 1
devices 0 1 1
freezer 0 1 1
net_cls 0 1 1
"""
for line in fileops.readlines('/proc/cgroups'):
m = self._RE_CGROUPS.match(line)
if m is None:
continue
name = m.group('name')
hierarchy = int(m.group('hier'))
n_cgroups = int(m.group('n'))
if m.group('enabled') == '1':
enabled = True
else:
enabled = False
if name not in self:
self[name] = {}
self[name]['name'] = name
self[name]['hierarchy'] = hierarchy
self[name]['num_cgroups'] = n_cgroups
self[name]['enabled'] = enabled
def _parse_proc_mount(self):
"""Parse /proc/mounts"""
"""
cgroup /cgroup/cpu cgroup rw,relatime,cpuacct,cpu,release_agent=/sbin/cgroup_clean 0 0
cgroup /cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0
cgroup /cgroup/freezer cgroup rw,relatime,freezer 0 0
"""
for line in fileops.readlines('/proc/mounts'):
if 'cgroup' not in line:
continue
items = line.split(' ')
path = items[1]
opts = items[3].split(',')
name = None
for opt in opts:
if opt in self:
name = opt
self.paths[name] = path
if 'name=' in opt:
# We treat name=XXX as its name
name = opt
self.paths[name] = path
self[name] = {}
self[name]['name'] = name
self[name]['enabled'] = True
self[name]['hierarchy'] = 0
self[name]['num_cgroups'] = 0
# release_agent= may appear before name=
for opt in opts:
if 'release_agent=' in opt:
self[name]['release_agent'] = opt.replace('release_agent=', '')
def _parse_proc_mount(self):
"""Parse /proc/mounts"""
"""
cgroup /cgroup/cpu cgroup rw,relatime,cpuacct,cpu,release_agent=/sbin/cgroup_clean 0 0
cgroup /cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0
cgroup /cgroup/freezer cgroup rw,relatime,freezer 0 0
"""
for line in fileops.readlines('/proc/mounts'):
if 'cgroup' not in line:
continue
items = line.split(' ')
path = items[1]
opts = items[3].split(',')
name = None
for opt in opts:
if opt in self:
name = opt
self.paths[name] = path
if 'name=' in opt:
# We treat name=XXX as its name
name = opt
self.paths[name] = path
self[name] = {}
self[name]['name'] = name
self[name]['enabled'] = True
self[name]['hierarchy'] = 0
self[name]['num_cgroups'] = 0
# release_agent= may appear before name=
for opt in opts:
if 'release_agent=' in opt:
self[name]['release_agent'] = opt.replace('release_agent=', '')
def update(self):
"""It updates process information of the cgroup."""
pids = fileops.readlines(self.paths['cgroup.procs'])
self.pids = [int(pid) for pid in pids if pid != '']
self.n_procs = len(pids)
def _update(self):
for line in fileops.readlines('/proc/meminfo'):
m = self._p.search(line)
if m:
self[m.group('key')] = int(m.group('val')) * 1024
def get_total_usage(self):
line = fileops.readlines('/proc/stat')[0]
line = line[5:] # get rid of 'cpu '
usages = [int(x) for x in line.split(' ')]
return sum(usages) / multiprocessing.cpu_count()
def update(self):
"""It updates process information of the cgroup."""
pids = fileops.readlines(self.paths['cgroup.procs'])
self.pids = [int(pid) for pid in pids if pid != '']
self.n_procs = len(pids)
