From: Arnd Bergmann <arnd@arndb.de>
To: yalin wang <yalin.wang2010@gmail.com>
Cc: linux@arm.linux.org.uk, ard.biesheuvel@linaro.org,
will.deacon@arm.com, nico@linaro.org, keescook@chromium.org,
catalin.marinas@arm.com, victor.kamensky@linaro.org,
msalter@redhat.com, vladimir.murzin@arm.com, ggdavisiv@gmail.com,
paul.gortmaker@windriver.com, mingo@kernel.org,
rusty@rustcorp.com.au, mcgrof@suse.com,
akpm@linux-foundation.org, kirill.shutemov@linux.intel.com,
n-horiguchi@ah.jp.nec.com, aarcange@redhat.com, mhocko@suse.com,
jack@suse.cz, iamjoonsoo.kim@lge.com, xiexiuqi@huawei.com,
vbabka@suse.cz, Vineet.Gupta1@synopsys.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [RFC] arm: add __initbss section attribute
Date: Mon, 12 Oct 2015 12:21:16 +0200 [thread overview]
Message-ID: <8530796.1MzFUDEUSY@wuerfel> (raw)
In-Reply-To: <1444622356-8263-1-git-send-email-yalin.wang2010@gmail.com>
On Monday 12 October 2015 11:59:16 yalin wang wrote:
> This attribute can make init data to be into .initbss section,
> this will make the data to be NO_BITS in vmlinux, can shrink the
> Image file size, and speed up the boot up time.
>
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
Do you have an estimate of how much it gains?
In multi_v7_defconfig, I see a total of 3367 symbols with
406016 bytes init.data, but only 348 bytes of those are
in zero-initialized symbols.
Arnd
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WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: yalin wang <yalin.wang2010@gmail.com>
Cc: linux@arm.linux.org.uk, ard.biesheuvel@linaro.org,
will.deacon@arm.com, nico@linaro.org, keescook@chromium.org,
catalin.marinas@arm.com, victor.kamensky@linaro.org,
msalter@redhat.com, vladimir.murzin@arm.com, ggdavisiv@gmail.com,
paul.gortmaker@windriver.com, mingo@kernel.org,
rusty@rustcorp.com.au, mcgrof@suse.com,
akpm@linux-foundation.org, kirill.shutemov@linux.intel.com,
n-horiguchi@ah.jp.nec.com, aarcange@redhat.com, mhocko@suse.com,
jack@suse.cz, iamjoonsoo.kim@lge.com, xiexiuqi@huawei.com,
vbabka@suse.cz, Vineet.Gupta1@synopsys.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [RFC] arm: add __initbss section attribute
Date: Mon, 12 Oct 2015 12:21:16 +0200 [thread overview]
Message-ID: <8530796.1MzFUDEUSY@wuerfel> (raw)
Message-ID: <20151012102116.xViq-Y6BsPtrgrJyvjvPF_q-7Mxk14xWzaVfwXzFwPk@z> (raw)
In-Reply-To: <1444622356-8263-1-git-send-email-yalin.wang2010@gmail.com>
On Monday 12 October 2015 11:59:16 yalin wang wrote:
> This attribute can make init data to be into .initbss section,
> this will make the data to be NO_BITS in vmlinux, can shrink the
> Image file size, and speed up the boot up time.
>
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
Do you have an estimate of how much it gains?
In multi_v7_defconfig, I see a total of 3367 symbols with
406016 bytes init.data, but only 348 bytes of those are
in zero-initialized symbols.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] arm: add __initbss section attribute
Date: Mon, 12 Oct 2015 12:21:16 +0200 [thread overview]
Message-ID: <8530796.1MzFUDEUSY@wuerfel> (raw)
In-Reply-To: <1444622356-8263-1-git-send-email-yalin.wang2010@gmail.com>
On Monday 12 October 2015 11:59:16 yalin wang wrote:
> This attribute can make init data to be into .initbss section,
> this will make the data to be NO_BITS in vmlinux, can shrink the
> Image file size, and speed up the boot up time.
>
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
Do you have an estimate of how much it gains?
In multi_v7_defconfig, I see a total of 3367 symbols with
406016 bytes init.data, but only 348 bytes of those are
in zero-initialized symbols.
Arnd
next prev parent reply other threads:[~2015-10-12 10:21 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-12 3:59 [RFC] arm: add __initbss section attribute yalin wang
2015-10-12 3:59 ` yalin wang
2015-10-12 3:59 ` yalin wang
2015-10-12 8:22 ` Ard Biesheuvel
2015-10-12 8:22 ` Ard Biesheuvel
2015-10-12 8:22 ` Ard Biesheuvel
2015-10-12 8:22 ` Ard Biesheuvel
2015-10-12 8:46 ` yalin wang
2015-10-12 8:46 ` yalin wang
2015-10-12 8:46 ` yalin wang
2015-10-12 8:46 ` yalin wang
2015-10-12 10:21 ` Arnd Bergmann [this message]
2015-10-12 10:21 ` Arnd Bergmann
2015-10-12 10:21 ` Arnd Bergmann
2015-10-12 20:04 ` Sam Ravnborg
2015-10-12 20:04 ` Sam Ravnborg
2015-10-12 20:04 ` Sam Ravnborg
2015-10-13 7:33 ` yalin wang
2015-10-13 9:40 ` Arnd Bergmann
2015-10-13 9:40 ` Arnd Bergmann
2015-10-13 9:40 ` Arnd Bergmann
2015-10-13 9:51 ` yalin wang
2015-10-13 9:51 ` yalin wang
2015-10-13 9:51 ` yalin wang
2015-10-13 11:28 ` Arnd Bergmann
2015-10-13 11:28 ` Arnd Bergmann
2015-10-13 11:28 ` Arnd Bergmann
2015-10-13 11:28 ` Arnd Bergmann
2015-10-13 9:40 ` Arnd Bergmann
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