[PATCH 0 of 3] Fast implemenation of parseindex in C

[Martin Geisler]

"Bernhard Leiner" <mailinglists.bleiner at gmail.com> writes:

> [*] Just for the record: measuring performance of a function that
> returns a big data structure like this seems like a bad idea:
>
> for x in xrange(100):
>     start = time.time()
>     res = functions_that_returns_a_lot_of_data()
>     stop = time.time()
>     timing_results.append(stop - start)
>
> As soon as 'res' is overwritten a _lot_ of objects are freed and the
> garbage collector kicks in and delays the following time measurement.
> This is at least my current theory after staring at strange timing
> results for too long.

There is a nice module for this kind of timing experiments:

  http://docs.python.org/library/timeit.html

You can even use it directly from the command line:

  python -m timeit 'functions_that_returns_a_lot_of_data()'

It takes care of disabling GC while testing, so it might help you.

-- 
Martin Geisler

VIFF (Virtual Ideal Functionality Framework) brings easy and efficient
SMPC (Secure Multi-Party Computation) to Python. See: http://viff.dk/.
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