lorien@big:/web/load$ ./do.py 
Sync. tests
Tasks: 100, workers: 10, document: 5b.html, module=grab
Time: 0.14 sec.
Tasks: 200, workers: 20, document: 5b.html, module=grab
Time: 0.26 sec.
Tasks: 100, workers: 10, document: 28k.html, module=grab
Time: 0.25 sec.
Tasks: 200, workers: 20, document: 28k.html, module=grab
Time: 0.50 sec.
Tasks: 100, workers: 10, document: 5b.html, module=urllib
Time: 0.18 sec.
Tasks: 200, workers: 20, document: 5b.html, module=urllib
Time: 0.37 sec.
Tasks: 100, workers: 10, document: 28k.html, module=urllib
Time: 0.40 sec.
Tasks: 200, workers: 20, document: 28k.html, module=urllib
Time: 0.42 sec.
Async. tests
Tasks: 100, workers: 10, document: 5b.html
Time: 0.13 sec.
Tasks: 200, workers: 20, document: 5b.html
Time: 0.25 sec.
Tasks: 100, workers: 10, document: 28k.html
Time: 0.21 sec.
Tasks: 200, workers: 20, document: 28k.html
Time: 0.41 sec.