From: Chris Friesen <cfriesen@nortel.com>
To: linux-os@analogic.com
Cc: "Tetsuji \"Maverick\" Rai" <tetsuji.rai@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: Need kernel patch to compile with Intel compiler
Date: Thu, 12 May 2005 09:54:22 -0600 [thread overview]
Message-ID: <42837C2E.9000506@nortel.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0505121130030.31719@chaos.analogic.com>
Richard B. Johnson wrote:
> The kernel is designed to be compiled with the GNU 'C' compler
> supplied with every distribution. It uses a lot of __asm__()
> statements and other GNU-specific constructions.
Yep. And Intel added a bunch of them to their compiler so that they
could build a kernel with it.
> Why would you even attempt to convert the kernel sources to
> be compiled with some other tools?
The Intel compiler is quite good at optimizing for their processors (and
ironically for AMD ones as well). However, I think that a lot of the
gains come from the vectorizer, which of course can't be used with
kernel code.
Chris
next prev parent reply other threads:[~2005-05-12 15:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-12 14:46 Need kernel patch to compile with Intel compiler Tetsuji "Maverick" Rai
2005-05-12 15:35 ` Richard B. Johnson
2005-05-12 15:54 ` Chris Friesen [this message]
2005-05-13 13:50 ` Tetsuji "Maverick" Rai
2005-05-13 14:52 ` Matthias-Christian Ott
2005-05-12 21:28 ` J.A. Magallon
2005-05-16 0:57 ` Peter Chubb
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