I don't have a 2.2 checkout handy, but I've got 2.1 and 2.3. I don't
see much difference. Note that I've made N smaller by about 10 to
make it run in reasonable time on my (virtual) machine.
localhost:~/src/python/src-release21-maint/build> ./python -O /tmp/iterzip.py
juststore 0.41
justtups 0.40
storetups 2.77
localhost:~/src/python/src/build> ./python -O /tmp/iterzip.py
juststore 0.32
justtups 0.29
storetups 2.44
Don't know what's up with your 2.2 build.
Jeremy
