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

[Pablo Almeida]

This only happens if the updates description box is shown, so it
looks like the problem is that update manager loads the descriptions
first and only then removes the items from the list.

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

Title:
  Excrutiatinling 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 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: Bug
  DistroRelease: 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/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to precise on 2012-02-16 (16 days ago)

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