[Bug 1178943] Re: /etc/cron.daily/apt is holding memory while "sleep"

[Jérôme]

Below is the output of ps :
---
j at 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.


** Changed in: apt (Ubuntu)
       Status: Incomplete => New

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apt in Ubuntu.
https://bugs.launchpad.net/bugs/1178943

Title:
  /etc/cron.daily/apt is holding memory while "sleep"

Status in “apt” package in Ubuntu:
  New

Bug description:
  The "random_sleep" function is calling "sleep". Thus the memory used
  by anacron, the /etc/cron.daily/apt script is frozen for minutes when
  the "random_sleep" blocks until the "sleep" program completes.

  Maybe an implementation of a delayed system call back would save
  memory. For example the script could register a call-back with "at"
  utility instead of using sleep.

  I think this problem is important, especially during a few minutes
  after the system startup. The desktop has to be responsive while many
  desktop tasks are temporarily using more memory for initialization
  during the first hour.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: apt 0.8.16~exp12ubuntu10.10
  ProcVersionSignature: Ubuntu 3.2.0-41.66-generic 3.2.42
  Uname: Linux 3.2.0-41-generic i686
  ApportVersion: 2.0.1-0ubuntu17.2
  Architecture: i386
  Date: Sat May 11 11:00:38 2013
  InstallationMedia: Xubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=fr:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: apt
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1178943/+subscriptions