On 04Oct2010 09:02, Adam Tauno Williams <awill...@whitemice.org> wrote: | 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?
Long standing Linux shortcoming. "man getrusage" on a handy Gentoo box says: The structure definition shown at the start of this page was taken from 4.3BSD Reno. Not all fields are meaningful under Linux. In Linux 2.4 only the fields ru_utime, ru_stime, ru_minflt, and ru_majflt are maintained. Since Linux 2.6, ru_nvcsw and ru_nivcsw are also maintained. Since Linux 2.6.22, ru_inblock and ru_oublock are also maintained. I ran across this deficiency a few years back hoping to get some memory stats for some software engineeers in a former life. I suggest you compare the kernel versions on your systems; CentOS tracks RedHat, which keeps moderately old kernel revisions (because the kernel revision stays stable over a given release - such stability is one of the things you get with such a distro). There's the ps command, antoher amazingly differing command across platforms (though usually compatible on a given tool distro - your Linux boxen will has GNU ps). Also look in /proc - the info may be available there - I expect that's where a Linux ps gets a lot of info. Cheers, -- Cameron Simpson <c...@zip.com.au> DoD#743 http://www.cskk.ezoshosting.com/cs/ I do not like this word 'bomb'. It is not a bomb. It is a device which is exploding. - Jacques Le Blanc, French Ambassador to New Zealand, on the tests of nuclear "exploding devices" in French Polynesia. -- http://mail.python.org/mailman/listinfo/python-list
