[Bug 1137996] [NEW] Software Updater freezes for a while if there are many updates available

[Michael Terry]

Public bug reported:

If there are a lot of updates available, Software Updater in raring will
"freeze" for a while before showing the update list.

By freeze, I mean the window goes dark.  The GTK event loop isn't given
control while update-manager is thinking about the update list.

The original source of the problem is that update-manager has a naive
recursive calculation of updates.  It probably needs to implement a
better algorithm.  But regardless of the algorithm, it could stand to be
responsive while it's thinking.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1137996

Title:
  Software Updater freezes for a while if there are many updates
  available

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  If there are a lot of updates available, Software Updater in raring
  will "freeze" for a while before showing the update list.

  By freeze, I mean the window goes dark.  The GTK event loop isn't
  given control while update-manager is thinking about the update list.

  The original source of the problem is that update-manager has a naive
  recursive calculation of updates.  It probably needs to implement a
  better algorithm.  But regardless of the algorithm, it could stand to
  be responsive while it's thinking.

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