how to start thread by group?

Gabriel Genellina gagsl-py2 at yahoo.com.ar
Tue Oct 7 23:50:50 CEST 2008


En Tue, 07 Oct 2008 13:25:01 -0300, Terry Reedy <tjreedy at udel.edu>  
escribió:
> Lawrence D'Oliveiro wrote:
>> In message <mailman.2088.1223354239.3487.python-list at python.org>,  
>> Gabriel Genellina wrote:
>>
>>> Usually it's more efficient to create all the MAX_THREADS at once, and
>>> continuously feed them with tasks to be done.
>>  Given that the bottleneck is most likely to be the internet  
>> connection, I'd
>> say the "premature optimization is the root of all evil" adage applies
>> here.
>
> There is also the bottleneck of programmer time to understand, write,  
> and maintain.  In this case, 'more efficient' is simpler, and to me,  
> more efficient of programmer time.  Feeding a fixed pool of worker  
> threads with a Queue() is a standard design that is easy to understand  
> and one the OP should learn.  Re-using tested code is certainly  
> efficient of programmer time.  Managing a variable pool of workers that  
> die and need to be replaced is more complex (two loops nested within a  
> loop) and error prone (though learning that alternative is probably not  
> a bad idea also).

I'd like to add that debugging a program that continuously creates and  
destroys threads is a real PITA.

-- 
Gabriel Genellina




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