python.utils.AtlRunQueryMemUtil Namespace Reference

Functions
def	_VmB (VmKey)
def	memory (since=0.0)
def	resident (since=0.0)
def	stacksize (since=0.0)

Variables
string	_proc_status = '/proc/%d/status' % os.getpid()
dictionary	_scale

Function Documentation

_VmB()

def python.utils.AtlRunQueryMemUtil._VmB (   VmKey )

private

Private.

Definition at line 10 of file AtlRunQueryMemUtil.py.

def _VmB(VmKey):
    '''Private.
    '''
    global _proc_status, _scale
     # get pseudo file  /proc/<pid>/status
    try:
        t = open(_proc_status)
        v = t.read()
        t.close()
    except (OSError,ValueError):
        return 0.0  # non-Linux?
     # get VmKey line e.g. 'VmRSS:  9999  kB\n ...'
    i = v.index(VmKey)
    v = v[i:].split(None, 3)  # whitespace
    if len(v) < 3:
        return 0.0  # invalid format?
     # convert Vm value to bytes
    return float(v[1]) * _scale[v[2]]
 
 

memory()

def python.utils.AtlRunQueryMemUtil.memory

(

since = 0.0

)

Return memory usage in bytes.

Definition at line 30 of file AtlRunQueryMemUtil.py.

def memory(since=0.0):
    '''Return memory usage in bytes.
    '''
    return _VmB('VmSize:') - since
 
 

resident()

def python.utils.AtlRunQueryMemUtil.resident

(

since = 0.0

)

Return resident memory usage in bytes.

Definition at line 36 of file AtlRunQueryMemUtil.py.

def resident(since=0.0):
    '''Return resident memory usage in bytes.
    '''
    return _VmB('VmRSS:') - since
 
 

stacksize()

def python.utils.AtlRunQueryMemUtil.stacksize

(

since = 0.0

)

Return stack size in bytes.

Definition at line 42 of file AtlRunQueryMemUtil.py.

def stacksize(since=0.0):
    '''Return stack size in bytes.
    '''
    return _VmB('VmStk:') - since

Variable Documentation

_proc_status

string python.utils.AtlRunQueryMemUtil._proc_status = '/proc/%d/status' % os.getpid()

private

Definition at line 5 of file AtlRunQueryMemUtil.py.

_scale

dictionary python.utils.AtlRunQueryMemUtil._scale

private

Initial value:

=  {'kB': 1024.0, 'mB': 1024.0*1024.0,
          'KB': 1024.0, 'MB': 1024.0*1024.0}

Definition at line 7 of file AtlRunQueryMemUtil.py.