From: Adrian Bunk <bunk@stusta.de>
To: Andi Kleen <ak@suse.de>
Cc: discuss@x86-64.org, linux-kernel@vger.kernel.org,
Arjan van de Ven <arjan@linux.intel.com>
Subject: Re: Dropping CONFIG_REORDER on x86-64 for 2.6.22
Date: Thu, 19 Apr 2007 19:06:50 +0200 [thread overview]
Message-ID: <20070419170650.GI10338@stusta.de> (raw)
In-Reply-To: <200704191354.52985.ak@suse.de>
On Thu, Apr 19, 2007 at 01:54:52PM +0200, Andi Kleen wrote:
>
> Hallo,
>
> I'm thinking about dropping the x86-64 CONFIG_REORDER for 2.6.22.
> The function enabled -ffunction-sections and then tries to reorder
> the executable
>
> While that's in theory a worthy goal to save TLB/icache, in practice it
> didn't really work out.
>
> Rationale:
>...
> So I'm planning to drop the option and arch/x86_64/kernel/functionlist
>
> Comments?
Have there been any benchmarks showing performance improvements
with -ffunction-sections?
> -Andi
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
next prev parent reply other threads:[~2007-04-19 17:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-19 11:54 Dropping CONFIG_REORDER on x86-64 for 2.6.22 Andi Kleen
2007-04-19 14:27 ` Arjan van de Ven
2007-04-19 16:59 ` Chuck Ebbert
2007-04-20 8:35 ` Måns Rullgård
2007-04-20 9:37 ` [discuss] " Andi Kleen
2007-04-20 17:24 ` Måns Rullgård
2007-04-19 17:06 ` Adrian Bunk [this message]
2007-04-19 20:10 ` David Miller
2007-04-20 1:21 ` Herbert Xu
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