@Matt: These are not final results... I'd do more tests and then send the results to you.
Btw, in attempt to speed up the enwik9 tests I installed the extra 4G of
RAM which were randomly lying around, and configured the ramdrive to
use 4.7G of memory unused by XP and put the swapfile there.
And after that, I tried to run both compression and decompression at once.
Well, I guess it is still much faster than swap to hdd, but it seems that
windows' swapping strategy is completely wrong in this case - like if
there're two processes which both use nearly 3G of RAM, and one of
them tries to allocate more memory, then _most_ of other process'
memory is swapped out at once - only like 100M is left.
http://shelwien.googlepages.com/ash1.png