[Bug 2112442] Re: noble regression: update-manager takes > 30s to start

[Tormod Volden]

The top offenders by total time:
       63   44.523    0.707   44.598    0.708 {built-in method time.sleep}
       91   10.686    0.117   57.193    0.628 apt.py:269(__enter__)
       90    1.845    0.020   37.540    0.417 apt.py:287(get_apt_pkg_cache)
        2    1.401    0.700    1.401    0.700 {method 'upgrade' of 'apt_pkg.DepCache' objects}
   337108    0.926    0.000    2.830    0.000 cache.py:308(__iter__)
   355700    0.899    0.000    1.700    0.000 weakref.py:276(setdefault)
        1    0.641    0.641    7.679    7.679 UpdateList.py:521(update)
        1    0.417    0.417    0.417    0.417 {method 'init' of 'apt_pkg.DepCache' objects}
   353950    0.393    0.000    0.393    0.000 weakref.py:352(__init__)
        7    0.369    0.053    2.854    0.408 UpdateList.py:427(_make_groups)

There is a lot of sleep it seems, but actually the CPU is pretty much
pegged to 100% all the time.

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https://bugs.launchpad.net/bugs/2112442

Title:
  noble regression: update-manager takes > 30s to start

Status in update-manager package in Ubuntu:
  New

Bug description:
  After upgrading update-manager from 1:24.04.9 to 1:24.04.12 today,
  update-manager now takes more than 30 seconds to start up, with CPU
  time of e.g. 47 seconds, before the main GUI is displayed. It is the
  same when using the -no-update option, and whether there are packages
  to be updated or not.

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