Dear Benedikt,
this is a typical case where the FSF compile farm may come
in handy.
You can find more information on the machines available for this
kind of tests here: http://gcc.gnu.org/wiki/CompileFarm
To get an account on the machines, just follow the instructions on
"How to get involved" on the page, you should be up and running
in very little time
--Roberto
On Wed, Aug 24, 2011 at 09:35:56PM +0200, Benedikt Meurer wrote:
>
> On Aug 1, 2011, at 17:04 , Gabriel Scherer wrote:
>
> > Do you have more precise measurements on
>
> Also posting Marcell's timing results here for reference (taken from bug
> 5324).
>
> > - the performance cost of this new allocator in the generated code? I
> > suppose the results may vary between different architectures (eg. x86
> > is probably more sensitive to good allocation decisions than x86_64).
>
> - http://ps.informatik.uni-siegen.de/~meurer/tmp/compiletime_timings.pdf
> contains a comparison of the ocamlopt invocations.
> - http://ps.informatik.uni-siegen.de/~meurer/tmp/runtime_timings.pdf contains
> comparison of the generated code.
>
> As can be seen from the results, amd64 is more sensitive to register
> allocator changes than i386. Not really surprising to me. Would be
> interesting to see how this affects PPC/Sparc/Mips, but we don't have
> appropriate hardware available right now. Anyone with appropriate hardware
> and some spare time? :-)
>
> Benedikt
>
>
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--
--Roberto Di Cosmo
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