[Mailman-Users] shunting is expensive

[sumeet]

The essential question is:    
Does anyone know how to either parallelize the shunting, so mailman process multiple messages and doesn't just stall at the shunting or make shunting at least a degree of magnitude faster.

The full story:
So, the ValueError: Empty module name is still a pretty big problem for me. Since SoBIG we've been getting a shunt for about 55% of our email. My inquiries lead me to believe that no one is really too interested in discussing this issue. So we'll ignore how to prevent the shunting from happening in the first place. However during shunting mailman comes to a halt for about 3 minutes per message on my dual proc 933mhz. As mail continues to come in and there are 10 messages that require shunting in a row, i'm about 30 min behind in mail delivery. Does anyone know how to either parallelize the shunting, so mailman process multiple messages and doesn't just stall at the shunting or make shunting at least a degree of magnitude faster.
thx.