On 12 May 2013 02:37, Jérôme <1178...@bugs.launchpad.net> wrote: > Below is the output of ps : > --- > j@lt:~$ ps axlf > F UID PID PPID PRI NI VSZ RSS WCHAN STAT TTY TIME COMMAND > (...) > 1 0 812 1 20 0 2392 840 rt_sig Ss ? 0:00 anacron > -s > 0 0 1615 812 20 0 2232 520 wait S ? 0:00 \_ > /bin/sh -c nice run-parts --report /etc/cron.daily > 0 0 1616 1615 30 10 2140 520 poll_s SN ? 0:00 \_ > run-parts --report /etc/cron.daily > 0 0 1622 1616 30 10 2232 560 wait SN ? 0:00 > \_ /bin/sh /etc/cron.daily/apt > 0 0 1672 1622 30 10 2148 280 hrtime SN ? 0:00 > \_ sleep 1307 > (...) > --- > > This makes 11 MB of virtual memory and 3 MB of physical memory. > >
Virtual size (VSZ) and Resident Set Size (RSS) are not accurate measures of the _unique_ memory consumed by a process. Processes share memory e.g. for the executable image. Use a tool such as the mem_usage script at <http://www.elinux.org/Runtime_Memory_Measurement>. See also <http://lwn.net/Articles/230975/>. The unique memory size of that process tree is more on the order of 1–2 MB, and a system has any number of /bin/sh processes and all sharing the same executable image. Further, a sleeping and nice process is never a significant contributor to swapping, whose data is swapped out and rarely in. If this is causing measurable harm on your system you have many more problems than one tiny, sleeping process. Submit a patch or dont, I would not waste my time. status invalid ** Changed in: apt (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1178943 Title: /etc/cron.daily/apt is holding memory while "sleep" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1178943/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
