Serious simulation performance drop

[Ferenc Wagner <wferi@niif.hu>]

Btw, I noticed that on Lenny:

$ time /usr/bin/apt-get -o 'Debug::NoLocking=true' -s -qq upgrade

real	0m4.351s
user	0m4.328s
sys	0m0.020s

takes much more time than it does on Etch:

$ time /usr/bin/apt-get -o 'Debug::NoLocking=true' -s -qq upgrade

real	0m0.800s
user	0m0.776s
sys	0m0.020s

even though the Etch machine has half the bogomips and more than twice
the /var/lib/apt/lists than the Lenny one (which is a paravirtual Xen
domain on a practically idle host, but this shouldn't matter).

Did anything change between versions 0.6.46.4-0.1 and 0.7.14 that
could explain such a big difference in CPU consumption?
-- 
Thanks,
Feri.