def __init__(self, pid):
self.pid = pid
items = fileops.read('/proc/%d/stat' % pid).split(' ')
self.name = items[1].lstrip('(').rstrip(')')
self.state = items[2]
self.ppid = int(items[3])
self.pgid = int(items[4])
self.sid = int(items[5])
if not self.is_kthread():
self.name = self._get_fullname()
cmdline = fileops.read('/proc/%d/cmdline' % self.pid)
self.cmdline = cmdline.rstrip('\0').replace('\0', ' ')
else:
self.cmdline = self.name
if os.path.exists('/proc/%d/autogroup' % pid):
autogroup = fileops.read('/proc/%d/autogroup' % pid)
else:
autogroup = None
if autogroup:
# Ex. "/autogroup-324 nice 0"
self.autogroup = autogroup.split(' ')[0].replace('/', '')
else:
# kthreads don't belong to any autogroup
self.autogroup = None
class SubsystemCpu(Subsystem):
NAME = 'cpu'
_path_rt_period = '/proc/sys/kernel/sched_rt_period_us'
_path_rt_runtime = '/proc/sys/kernel/sched_rt_runtime_us'
STATS = {
'stat': SimpleStat,
}
CONFIGS = {
'shares': 1024,
# Are the default values correct?
'rt_period_us': long(fileops.read(_path_rt_period)),
'rt_runtime_us': long(fileops.read(_path_rt_runtime)),
'cfs_period_us': 100000,
'cfs_quota_us': -1,
}
def _get_fullname(self):
cmdline = fileops.read('/proc/%d/cmdline' % self.pid)
if '\0' in cmdline:
args = cmdline.rstrip('\0').split('\0')
if ' ' in args[0]:
name = args[0].split(' ')[0]
else:
name = args[0]
else:
#args = [cmdline,]
args = cmdline.split(' ')
name = args[0]
if len(name) == 0:
name = os.path.basename(' '.join(args[0:2]))
return name
if name[0] == '/':
name = os.path.basename(name)
name = name.rstrip(':')
if len(args) >= 2:
scripts = ['python', 'ruby', 'perl']
# Want to catch /usr/bin/python1.7 ...
if len([s for s in scripts if s in name]) > 0:
name = os.path.basename(' '.join(args[0:2]))
return name
def get_stats(self):
"""
It returns a name and a value pairs of control files
which are categorised in the stats group.
"""
stats = {}
for name, cls in self.stats.iteritems():
path = self.paths[name]
if os.path.exists(path):
try:
stats[name] = self._PARSERS[cls](fileops.read(path))
except IOError, e:
if e.errno == errno.EOPNOTSUPP:
# Since 3.5 memory.memsw.* are always created even if disabled.
# If disabled we will get EOPNOTSUPP when read or write them.
# See commit af36f906c0f4c2ffa0482ecdf856a33dc88ae8c5 of the kernel.
pass
else:
raise
def get_stats(self):
"""
It returns a name and a value pairs of control files
which are categorised in the stats group.
"""
stats = {}
for name, cls in self.stats.iteritems():
path = self.paths[name]
if os.path.exists(path):
try:
stats[name] = self._PARSERS[cls](fileops.read(path))
except IOError, e:
if e.errno == errno.EOPNOTSUPP:
# Since 3.5 memory.memsw.* are always created even if disabled.
# If disabled we will get EOPNOTSUPP when read or write them.
# See commit af36f906c0f4c2ffa0482ecdf856a33dc88ae8c5 of the kernel.
pass
else:
raise
def _get_fullname(self):
cmdline = fileops.read('/proc/%d/cmdline' % self.pid)
if '\0' in cmdline:
args = cmdline.rstrip('\0').split('\0')
if ' ' in args[0]:
name = args[0].split(' ')[0]
else:
name = args[0]
else:
#args = [cmdline,]
args = cmdline.split(' ')
name = args[0]
if name[0] == '/':
name = os.path.basename(name)
name = name.rstrip(':')
if len(args) >= 2:
scripts = ['python', 'ruby', 'perl']
# Want to catch /usr/bin/python1.7 ...
if len([s for s in scripts if s in name]) > 0:
name = os.path.basename(' '.join(args[0:2]))
return name
def get_online(self):
if not os.path.exists('/sys/devices/system/node/'):
return '0'
else:
return fileops.read('/sys/devices/system/node/online').strip()
def get_online(self):
return fileops.read("/sys/devices/system/cpu/online").strip()
def cpu_count(self):
return fileops.read('/proc/cpuinfo').count('processor')