[Python-Dev] Pythonic concurrency

[Donovan Baarda]

On Fri, 2005-10-07 at 23:54, Nick Coghlan wrote:
[...]
> The few times I have encountered anyone saying anything resembling "threading 
> is easy", it was because the full sentence went something like "threading is 
> easy if you use message passing and copy-on-send or release-reference-on-send 
> to communicate between threads, and limit the shared data structures to those 
> required to support the messaging infrastructure". And most of the time there 
> was an implied "compared to using semaphores and locks directly, " at the start.

LOL! So threading is easy if you restrict inter-thread communication to
message passing... and what makes multi-processing hard is your only
inter-process communication mechanism is message passing :-)

Sounds like yet another reason to avoid threading and use processes
instead... effort spent on threading based message passing
implementations could instead be spent on inter-process messaging.

-- 
Donovan Baarda <abo at minkirri.apana.org.au>