From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
To: Richard Weinberger <richard@nod.at>, horms@verge.net.au
Cc: kexec@lists.infradead.org
Subject: Re: [PATCH] purgatory: compile sha256.c only on ia64 with -O0
Date: Mon, 01 Apr 2013 09:59:42 +0800 [thread overview]
Message-ID: <5158EA0E.10705@cn.fujitsu.com> (raw)
In-Reply-To: <1364763549-10790-1-git-send-email-richard@nod.at>
于 2013年04月01日 04:59, Richard Weinberger 写道:
> If we have to compile sha256.c on ia64 with -O0 to produce sane code
> do it only on ia64.
>
> This change makes executing a new kernel on my AMD geode CPU much faster.
> Without the patch "kexec -e" takes 27 seconds, with only 16.
>
> Signed-off-by: Richard Weinberger <richard@nod.at>
> ---
> purgatory/Makefile | 15 +--------------
> purgatory/arch/ia64/Makefile | 3 +++
> 2 files changed, 4 insertions(+), 14 deletions(-)
The fix is sound.
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
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next prev parent reply other threads:[~2013-04-01 2:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-31 20:59 [PATCH] purgatory: compile sha256.c only on ia64 with -O0 Richard Weinberger
2013-04-01 1:59 ` Zhang Yanfei [this message]
2013-04-01 5:04 ` Simon Horman
2013-04-01 5:16 ` Zhang Yanfei
2013-04-01 10:05 ` Richard Weinberger
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