I'm using a call to the resource module's getrusage method. On openSUSE this works, on CentOS [python26-2.6.5-3.el5] it 'works' but just returns zeros for the memory utilization values.
resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
openSUSE: returns 5512 CentOS: returns 0
Anyone know what condition causes this? Or is there a better / more-reliable way to check memory utilization of the current process [from python]?