This one's fine...
uname -a Linux vbox-ubuntu-1210-i386 3.2.0-030200-generic #201305021257 SMP Thu May 2 17:06:29 UTC 2013 i686 i686 i686 GNU/Linux
sudo time apt-get update 1.28 user 0.43 system 0:04.36 elapsed 39%CPU (0avgtext+0avgdata 25260maxresident)k 126776inputs+95224outputs (23major+17131minor)pagefaults 0swaps
This one's fine...
uname -a 1210-i386 3.2.0-030200- generic #201305021257 SMP Thu May 2 17:06:29 UTC 2013 i686 i686 i686 GNU/Linux
Linux vbox-ubuntu-
sudo time apt-get update 95224outputs (23major+ 17131minor) pagefaults 0swaps
1.28 user
0.43 system
0:04.36 elapsed
39%CPU (0avgtext+0avgdata 25260maxresident)k
126776inputs+