[Ecls-list] strange things with declarations, ECL 9.6.2

[Gábor Balázs]

Yes, you are absolutely right, it is not a complete comparsion, just one
aspect. BTW I forget to mention that my computer is a 32bit arch using
linux. Maybe it is useful for someone. And thank you for the help, not
inlining is a good candidate for the slowdown, because I usually use it to
split functionalities without the performance downgrade. I prefer this way
instead of macros.

Best,
`Gabor`


2009/8/14 Juan Jose Garcia-Ripoll <juanjose.garciaripoll at googlemail.com>

> 2009/8/14 Gábor Balázs <gabalz at gmail.com>:
> > ECL:
> >   real time : 119.914 secs
> >   run time  : 111.667 secs
> >   gc count  : 8798 times
> >   consed    : 30900318944 bytes
> > SBCL
> >   23.515 seconds of real time
> >   5,114,640,016 bytes consed
> > I also tried my library's speed test and that showed me that ECL is
> 100-300
> > times slower than SBCL.
>
> I get other values on my Mac OS X. ECL does 50s with 150,000,000
> consed and SBCL 16s with more consing. But that is not the point.
>
> Right now ECL is not inlining function calls. That means your code is
> boxing and unboxing numbers all the time, which is the cause for the
> slowdown.
>
> > I know that ECL is not primarily designed for scientific computation
> > purposes, but I want to ask a few things.
> > - What kind of experience do you have about speed differences between ECL
> > and an other Lisp implementations (e.g. SBCL)?
>
> Right now this is not a fair comparison. ECL's type inferencer and
> inlining capabilities are in its infancy and work is in progress on
> that camp.
>
> > - Can you recommend me a good profiler for ECL?  Should I use Slime or
> gprof
> > somehow?
>
> ECL has its own profile package, which you can load using (REQUIRE
> 'PROFILE)
>
> Juanjo
>
> --
> Instituto de Física Fundamental, CSIC
> c/ Serrano, 113b, Madrid 28006 (Spain)
> http://juanjose.garciaripoll.googlepages.com
>
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