From: mru@kth.se (Måns Rullgård)
To: linux-kernel@vger.kernel.org
Subject: Re: FEATURE REQUEST: Specific Processor Optimizations on x86 Architecture
Date: Thu, 23 Oct 2003 02:12:25 +0200 [thread overview]
Message-ID: <yw1xn0bsq0ba.fsf@kth.se> (raw)
In-Reply-To: 200310221855.15925.theman@josephdwagner.info
"Joseph D. Wagner" <theman@josephdwagner.info> writes:
> Yes, I know you can select Pentium III, Pentium 4, Athlon, etc, under
> processor type when doing a 'make xconfig', but those selections do not
> translate into the appropriate -mcpu and -march flags.
In Linux 2.6.0-test8, the flags are correct. Which version are you
referring to?
> I don't want to have to hand edit the makefiles just to optimize my kernel.
> I think this change is simple enough to do, and would allow kernel
> developers the option of processor-specific optimizations in the future.
Considered the time normally spent in the kernel, a few percent faster
code there wouldn't be noticeable.
--
Måns Rullgård
mru@kth.se
next prev parent reply other threads:[~2003-10-23 0:12 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-22 12:55 FEATURE REQUEST: Specific Processor Optimizations on x86 Architecture Joseph D. Wagner
2003-10-23 0:12 ` Måns Rullgård [this message]
2003-10-22 13:26 ` Joseph D. Wagner
2003-10-23 0:37 ` Michael Rozhavsky
2003-10-23 0:15 ` Dave Jones
2003-10-22 13:47 ` Joseph D. Wagner
2003-10-23 1:02 ` Rik van Riel
2003-10-23 1:14 ` Joseph D. Wagner
2003-10-23 1:18 ` Rik van Riel
2003-10-23 9:26 ` Jan-Benedict Glaw
2003-10-23 9:35 ` Måns Rullgård
2003-10-23 1:06 ` Tim Hockin
2003-10-22 15:40 ` Joseph D. Wagner
2003-10-23 14:57 ` Rik van Riel
2003-10-23 1:23 ` Dave Jones
2003-10-22 15:35 ` Joseph D. Wagner
2003-10-23 2:52 ` William Lee Irwin III
2003-10-23 9:35 ` Jan-Benedict Glaw
2003-10-23 13:40 ` Jesse Pollard
2003-10-23 14:57 ` Charles Cazabon
2003-10-23 15:34 ` David Zaffiro
2003-10-23 17:26 ` Rob
2003-10-23 23:05 ` J.A. Magallon
2003-10-23 23:24 ` Nick Piggin
[not found] ` <200310241301.41230.ioe-lkml@rameria.de>
2003-10-27 15:20 ` J.A. Magallon
2003-10-27 20:52 ` Zwane Mwaikambo
[not found] <JB3R.23s.23@gated-at.bofh.it>
[not found] ` <JBn4.2xt.19@gated-at.bofh.it>
[not found] ` <JBPW.36x.3@gated-at.bofh.it>
2003-10-23 8:32 ` Ihar 'Philips' Filipau
2003-10-23 8:37 ` Ihar 'Philips' Filipau
[not found] ` <JWKQ.7nS.15@gated-at.bofh.it>
[not found] ` <LhtX.bs.15@gated-at.bofh.it>
[not found] ` <LhtX.bs.13@gated-at.bofh.it>
2003-10-27 18:33 ` Andi Kleen
2003-10-27 21:05 ` Zwane Mwaikambo
[not found] <JB3R.23s.23@gated-at.bofh.it.suse.lists.linux.kernel>
[not found] ` <JWKQ.7nS.15@gated-at.bofh.it.suse.lists.linux.kernel>
[not found] ` <LhtX.bs.15@gated-at.bofh.it.suse.lists.linux.kernel>
[not found] ` <LhtX.bs.13@gated-at.bofh.it.suse.lists.linux.kernel>
[not found] ` <m3k76qsf8i.fsf@averell.firstfloor.org.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.53.0310271603580.21953@montezuma.fsmlabs.com.suse.lists.linux.kernel>
2003-10-27 21:15 ` Andi Kleen
2003-11-18 14:28 ` Zwane Mwaikambo
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