ipc pickle

[Janez Jere]

> 
> 
> Define slow.  I ran some tests on various sizes, etc, and it seems OK.
> At a certain size, os.write() appears to be blocked, and never returns.
> That's slow... ;-)  Are you hitting something like that?  If not, look
> into the profiler to see where your bottleneck is at.

os.write blocks because pipe buffer is full and there is no reader 
thread to empty the buffer. I just want to learn how to write more 
efficient python code. There is no known bottleneck here, because the 
whole application is far from being complete.

Regards, Janez