This one seems fine too...
Linux vbox-ubuntu-1210-i386 3.2.0-030200-generic #201304291319 SMP Mon Apr 29 17:46:37 UTC 2013 i686 i686 i686 GNU/Linux
sudo time apt-get update 1.78user 0.53system 0:08.61elapsed
26%CPU (0avgtext+0avgdata 25240maxresident)k 117504inputs+115800outputs (23major+22768minor)pagefaults 0swaps
This one seems fine too...
Linux vbox-ubuntu- 1210-i386 3.2.0-030200- generic #201304291319 SMP Mon Apr 29 17:46:37 UTC 2013 i686 i686 i686 GNU/Linux
sudo time apt-get update
1.78user
0.53system
0:08.61elapsed
26%CPU (0avgtext+0avgdata 25240maxresident)k 115800outputs (23major+ 22768minor) pagefaults 0swaps
117504inputs+