From: Andrew Morton <akpm@osdl.org>
To: Serge Belyshev <33554432@mtu-net.ru>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arch/i386/Makefile,scripts/gcc-version.sh,Makefile small fixes
Date: Sat, 24 Jan 2004 10:17:04 -0800 [thread overview]
Message-ID: <20040124101704.3bf3ada2.akpm@osdl.org> (raw)
In-Reply-To: <87oestsard.fsf@mtu-net.ru>
Serge Belyshev <33554432@mtu-net.ru> wrote:
>
> [This patch is against 2.6.2-rc1-mm2]
Is appreciated, thanks.
> arch/i386/Makefile:
> * omitted $(KBUILD_SRC)/ in script call.
OK
> scripts/gcc-version.sh:
> * GNU tail no longer supports 'tail -1' syntax.
OK.
> Makefile:
> * There is no point in adding -funit-at-a-time option because it is
> enabled by default at levels -Os, -O2 and -O3.
hm. Didn't Andi say that adding -fno-unit-at-a-time caused code shrinkage?
> * Consider adding -fweb option:
What does it do?
> vanilla:
> $ size vmlinux
> text data bss dec hex filename
> 3056270 526780 386056 3969106 3c9052 vmlinux
>
> with -fweb:
> $ size vmlinux
> text data bss dec hex filename
> 3049523 526780 386056 3962359 3c75f7 vmlinux
>
> Also note 0.1 ... 1.0% speedup in various benchmarks.
> This option is not enabled by default at -O2 because it
> (like -fomit-frame-pointer) makes debugging impossible.
OK, then we'd need a config option for it.
next prev parent reply other threads:[~2004-01-24 18:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-24 14:04 [PATCH] arch/i386/Makefile,scripts/gcc-version.sh,Makefile small fixes Serge Belyshev
2004-01-24 18:17 ` Andrew Morton [this message]
2004-01-24 18:32 ` Valdis.Kletnieks
2004-01-25 1:55 ` Serge Belyshev
2004-01-25 1:40 ` Serge Belyshev
-- strict thread matches above, loose matches on Subject: below --
2004-01-24 14:37 sam
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