[viff-devel] Mystery of the quadratic running time solved?

[Marcel Keller]

> Indeed we did not know 
> (well I didn't) back then that the data was not sent immediately by 
> Twisted, and I was starting to think yesterday whether the hack would 
> make a difference. Lucky for us, it apparently does :)

That is not the only problem. To free the memory of the shares and to 
send out further shares, also the incoming shares must be processed as 
soon as possible. This is even trickier because incoming shares might 
trigger code that calls functions sending out data, which activates the 
Twisted reactor again and therefore leads to a possibly too deep 
recursion. I think I have a solution for that, it just wasn't necessary 
to implement it for now because the hack worked anyway.