From owner-freebsd-hackers  Sat Mar 30 20:45:32 2002
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Date: Sat, 30 Mar 2002 20:45:27 -0800 (PST)
From: Kip Macy <kip_macy@yahoo.com>
Reply-To: kip@eventdriven.org
Subject: Re: icc status on FreeBSD
To: Alp ATICI <atici@math.columbia.edu>, hackers@freebsd.org
In-Reply-To: <Pine.LNX.4.44.0203302259160.14251-100000@intel5.math.columbia.edu>
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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 <atici@math.columbia.edu> 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
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of
> the message
> 
> 


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