freebsd stable - Aug 2016 - Benchmarks results for Compilers on FreeBSD 11

Hi,

On Wed, 24 Aug 2016 13:12:24 +0200
Fernando Herrero Carr?n <elferdo at gmail.com> wrote:
> Many ports offer an option to compile with optimized cflags. See for
> instance http://www.freshports.org/multimedia/ffmpeg:
> 
>      OPTIMIZED_CFLAGS=off: Use extra compiler optimizations
> 
> though:
> 
>      SSE=on: Use SSE optimized routines
> 
> It turns out that optimization options are usually off by default, so
if we assume Micheal has built the test suite from ports, it is all to
the defaults. I also do not see a compiler option. With the compiler
option, the same compiler could be used on all platforms.

I am not even sure if the same compiler was used on the Linux platforms.

Erich

On Fri, 26 Aug 2016 13:20:59 +0800
Erich Dollansky <erichsfreebsdlist at alogt.com> wrote:
> Hi,
> 
> On Wed, 24 Aug 2016 13:12:24 +0200
> Fernando Herrero Carr?n <elferdo at gmail.com> wrote:
> 
> > Many ports offer an option to compile with optimized cflags. See for
> > instance http://www.freshports.org/multimedia/ffmpeg:
> > 
> >      OPTIMIZED_CFLAGS=off: Use extra compiler optimizations
> > 
> > though:
> > 
> >      SSE=on: Use SSE optimized routines
> > 
> > It turns out that optimization options are usually off by default, so
> 
> if we assume Micheal has built the test suite from ports, it is all to
> the defaults. I also do not see a compiler option. With the compiler
> option, the same compiler could be used on all platforms.
I think at some point, he mentionned that PC-BSD could/would be the basis for
the FreeBSD benchmarks at phoronix (due to deployment considerations).

In that case, the options used in PC-BSD packages should be taken into
account...
> 
> I am not even sure if the same compiler was used on the Linux platforms.
No, when he does OSes benchmarks, he make them compete with the compiler the OS
provides. But he sometimes do compiler benchmarks.
> 
> Erich
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-- 
Matthieu Volat <mazhe at alkumuna.eu>
tel: 06 84 54 39 43
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Hi,

Micheal did a plain compiler benchmark on FreeBSD 11:

http://www.phoronix.com/scan.php?page=article&item=freebsd11-clang-gcc&num=1

It shows clearly how slow CLang is compared to GCC. 

This is the price FreeBSD has to pay to be free of GPL in the base
system. 

Erich