[BangPypers] Multiprocessing takes higher execution time

[Amit k. Saha]

On Wed, Jan 7, 2009 at 3:10 PM, Sibtey Mehdi <sibteym at infotechsw.com> wrote:
> Hi,
>
>
>
> I use multiprocessing to compare more then one set of files.
>
> For comparison each set of files (i.e. Old file1 Vs New file1) I create a
> process,
>
> Process(target=compare, args=(oldFile, newFile)).start()
>
> It takes 61 seconds execution time.
>
>
>
> When I do the same comparison without implementing multiprocessing, it takes
> 52 seconds execution time.
>
>
>
> The parallel processing time should be lesser.
>
>
>
> I am not able to get advantage of multiprocessing here.

Depends on the overheads of spawning multiple threads/processes v$
your actual processing. The same way, things are compared in old
school when they used to compare macros v$ functions in C/C++.

-Amit


>
>
>
> Any suggestions can be very helpful.
>
>
>
> Thanks,
>
> Gopal
>
>
>
>
>
>
>
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-- 
Amit Kumar Saha
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