Idle wait for outstanding threads?

[Aahz Maruch]

In article <f72dac0d.0201310341.2b52f42e at posting.google.com>,
Alan Kennedy <alanmk at hotmail.com> wrote:
>
>def serviceRequest(req):
>    # Task: Carry out database query 1
>    # Task: Carry out database query 2
>    # Task: Carry out database query 3
>    # Task: Carry out some complex calculations
>    # Collate the results and prepare the reply
>
>Now all of the tasks carried out above are independent, so they can be
>executed in parallel. So I hope to speed things up by creating a
>thread for each one. Obviously, I have to wait until all of the tasks
>are finished before I collate the results and prepare the reply.

Then, yeah, thread.join() is best.  Note that parallelizing calculations
will not gain you anything.
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