[Bug 945536] Re: Excruciatingly slow package list onscreen update

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** Tags added: patch

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https://bugs.launchpad.net/bugs/945536

Title:
  Excruciatingly slow package list onscreen update

Status in “update-manager” package in Ubuntu:
  Confirmed
Status in “update-manager” source package in Precise:
  Confirmed

Bug description:
  Update-manager seem to take something like 0.3s to refresh each
  package in the list (when there is 343 updates, took about 3 min to
  refresh the whole list).

  To reproduce:
  - with some updates waiting
  - open update-manager
  - click "Description of update" expander
  - click on the check button
  - wait for the update progress window to close
  -> Watch the onscreen package list being slowly updated one package after the other.

  Possible cause: extraneous list refresh function being called after
  each addition/removal to the list

  ProblemType: BugDistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.6
  ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
  Uname: Linux 3.2.0-17-generic x86_64
  ApportVersion: 1.93-0ubuntu2
  Architecture: amd64
  Date: Sat Mar  3 12:40:50 2012
  DpkgHistoryLog.txt:

  DpkgTerminalLog.txt:

  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1330774583
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 913
   com.ubuntu.update-manager window-width 1173
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.2)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bashSourcePackage: update-manager
  UpgradeStatus: Upgraded to precise on 2012-02-16 (16 days ago)

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