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From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: C++ threads vs. Ada tasks - surprised
Date: Mon, 17 Aug 2009 02:44:02 -0700 (PDT)
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Date: 2009-08-17T02:44:02-07:00
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Frederik Sausmikat wrote on comp.lang.ada:
> Tomek Wa=C5=82kuski wrote:
> > On 17 Sie, 10:04, Frederik Sausmikat <frederik.sausmi...@gmx.de>
> > wrote:
> >> Just FYI, on my machine the C++ version is the one being ~2x faster
> >> (both gnat and g++ are version 4.3.3 here).
>
> > How many tests have you performed?
>
> > I have done ~20 tests for both versions and Ada version is average
> > ~1,5x faster.
>
> I just did 100 runs of each version with a constant number of iterations
> and averaged the execution times. The result is the same as before with
> the C++ version being about 2 times faster than the Ada version.

I guess this must depend on the underlying platform as well as the
options used when building GCC and the test program, then.

--
Ludovic Brenta.