Just as a point of reference I timed the opening of software-properties-gtk on Lubuntu 11.10.
I initially ran software-properties-gtk a couple of times before timing it. Timing consisted of running the command below, clicking the Cancel button as soon as it appeared. With Core 2 Duo T8100 2.1GHz CPU I got
# time software-properties-gtk
gpg: /tmp/tmpwGGX4v/trustdb.gpg: trustdb created
Just as a point of reference I timed the opening of software- properties- gtk on Lubuntu 11.10.
I initially ran software- properties- gtk a couple of times before timing it. Timing consisted of running the command below, clicking the Cancel button as soon as it appeared. With Core 2 Duo T8100 2.1GHz CPU I got
# time software- properties- gtk trustdb. gpg: trustdb created
gpg: /tmp/tmpwGGX4v/
real 0m0.999s
user 0m0.704s
sys 0m0.084s