python.ResourceLimits Namespace Reference

Functions
	_maxout (what, descr)
	private helper --------------------------------------------------------—
	_max_32bit_address_space (soft, descr)
	SetMaxLimits ()
	max out soft resource limits to hard ones -----------------------------—

Variables
str	__version__ = '1.2.1'
	data ------------------------------------------------------------------—
str	__author__ = 'Grigori Rybkine (Grigori.Rybkine@cern.ch)'
list	__all__ = [ 'SetMaxLimits' ]
	log = logging.getLogger( 'ResourceLimits' )

Detailed Description

Helper to max soft resource limits to the hard ones.

Function Documentation

_max_32bit_address_space()

python.ResourceLimits._max_32bit_address_space ( soft, descr )

protected

Definition at line 38 of file ResourceLimits.py.

def _max_32bit_address_space( soft, descr ):
   MAX_AS = 2**32
   _64MB = 64*1024*1024
   hard = MAX_AS
   while hard > soft:
      try:
         log.debug( 'setting soft %s limit to %s (was: %s)', descr,
                    str(hard),
                    str(soft), )
         resource.setrlimit( resource.RLIMIT_AS, (hard,hard) )
      except ValueError:
         hard -= _64MB
      else:
         log.debug( 'set soft %s limit to %s (was: %s)', descr,
                    str(hard),
                    str(soft), )
         return
 

_maxout()

python.ResourceLimits._maxout ( what, descr )

protected

private helper --------------------------------------------------------—

Definition at line 23 of file ResourceLimits.py.

def _maxout( what, descr ):
   soft, hard = resource.getrlimit( what )
   if soft < hard or ( hard == -1 and soft != hard ):
      log.debug( 'setting soft %s limit to %s (was: %s)', descr,
                 hard == -1 and 'unlimited' or str(hard),
                 soft == -1 and 'unlimited' or str(soft), )
      try:
         resource.setrlimit( what, (hard,hard) )
      except ValueError:
         if what != resource.RLIMIT_AS or hard != -1: raise
         import platform
         if platform.architecture()[0] != '32bit': raise
         if platform.machine() in ['i386', 'i486', 'i586', 'i686']: raise
         _max_32bit_address_space( soft, descr )
 

SetMaxLimits()

python.ResourceLimits.SetMaxLimits

(

)

max out soft resource limits to hard ones -----------------------------—

Definition at line 57 of file ResourceLimits.py.

def SetMaxLimits():
    try:
       _maxout( resource.RLIMIT_AS,  'address space' )
       _maxout( resource.RLIMIT_RSS, 'resident state' )
    except (ValueError,resource.error) as e:
       log.warning( 'failed to set max resource limits (%s)', str(e) )
 

Variable Documentation

__all__

list python.ResourceLimits.__all__ = [ 'SetMaxLimits' ]

private

Definition at line 17 of file ResourceLimits.py.

__author__

str python.ResourceLimits.__author__ = 'Grigori Rybkine (Grigori.Rybkine@cern.ch)'

private

Definition at line 15 of file ResourceLimits.py.

__version__

str python.ResourceLimits.__version__ = '1.2.1'

private

data ------------------------------------------------------------------—

Definition at line 14 of file ResourceLimits.py.

log

python.ResourceLimits.log = logging.getLogger( 'ResourceLimits' )

Definition at line 19 of file ResourceLimits.py.