Re: icc status on FreeBSD

[Kip Macy]

I wouldn't necessarily get too excited about using icc
for compiling operating systems. The company I work
for
uses gcc for compiling its file server OS.  People
their have, however, experimented with using icc for
builds. When they used feedback profiling from SFS
i.e. to determine which branches are likely taken,
(all standard benchmark disclaimers apply) they saw a
17% performance increase. As of 3.0.3 gcc also
supports feedback profiling, and using it they also
saw a 17% performance increase over a stock gcc
compile. Without optimization the stock icc build
performs worse than the gcc build. 

Your mileage may of course vary. My point is just that
icc does not appear to perform any wonders for systems
code.

-Kip

--- Alp ATICI <[EMAIL PROTECTED]> wrote:
> I was just looking into the icc port on FreeBSD.
> It tells on freshports site that it does not produce
> native executables but objects and linux
> compatibility
> base is necessary. Is it possible (with cooperation
> with
> intel) to completely port icc to FreeBSD (and make
> it
> compatible with libc so that it will be possible to
> compile
> FreeBSD kernel sometime.
> 
> I was asking the same question to intel guys
> (through
> premier.intel.com which you can register for free)
> and they
> haven't heard about FreeBSD port. I don't personally
> care how
> "open source" anything is, if it really produces
> extraordinary
> machine code in the end. With version 6.0 of icc one
> would be
> able to compile linux kernel. I hope with some
> cooperation one
> could do the same with FreeBSD.
> 
> I respect the gcc effort, but if icc is as good as
> it is told to be
> then it could supersede (at least in intel
> community) gcc.
> What is the general sentiment and the will for
> cooperation about
> porting icc to FreeBSD?
> Alp
> 
> 
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> 
> 


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Re: icc status on FreeBSD

[Michael Smith]

> I respect the gcc effort, but if icc is as good as it is told to be
> then it could supersede (at least in intel community) gcc.
> What is the general sentiment and the will for cooperation about
> porting icc to FreeBSD?

I doubt that porting will be necessary; I've watched another developer 
(who will probably come forward when he's ready) compiling large portions 
of the FreeBSD codebase with the Linux icc binary.

Initial performance results were solid but not astounding; we'll see when 
it's ready, eh?

 = Mike

-- 
To announce that there must be no criticism of the president,
or that we are to stand by the president, right or wrong, is not
only unpatriotic and servile, but is morally treasonable to 
the American public.  - Theodore Roosevelt



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icc status on FreeBSD

[Alp ATICI]

I was just looking into the icc port on FreeBSD.
It tells on freshports site that it does not produce
native executables but objects and linux compatibility
base is necessary. Is it possible (with cooperation with
intel) to completely port icc to FreeBSD (and make it
compatible with libc so that it will be possible to compile
FreeBSD kernel sometime.

I was asking the same question to intel guys (through
premier.intel.com which you can register for free) and they
haven't heard about FreeBSD port. I don't personally care how
"open source" anything is, if it really produces extraordinary
machine code in the end. With version 6.0 of icc one would be
able to compile linux kernel. I hope with some cooperation one
could do the same with FreeBSD.

I respect the gcc effort, but if icc is as good as it is told to be
then it could supersede (at least in intel community) gcc.
What is the general sentiment and the will for cooperation about
porting icc to FreeBSD?
Alp


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