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From: Ingo Molnar <mingo@kernel.org>
To: ling.ma.program@gmail.com
Cc: mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com,
	linux-kernel@vger.kernel.org, Ma Ling <ling.ml@alipay.com>
Subject: Re: [PATCH V2] [x86]: Compiler Option Os is better on latest x86
Date: Sun, 27 Jan 2013 14:09:05 +0100	[thread overview]
Message-ID: <20130127130905.GD3933@gmail.com> (raw)
In-Reply-To: <1359203052-5159-1-git-send-email-ling.ma@alipay.com>


* ling.ma.program@gmail.com <ling.ma.program@gmail.com> wrote:

> In this version we also append CONFIG_CC_OPTIMIZE_FOR_SIZE for i386.

Were those measurements done on i386 as well? I'd be content 
with keeping the current minimal - and mostly documentary - 
patch that only does this on 64-bit. I just wanted to record the 
current benchmark numbers mostly.

Also see the discussion with Linus - this is by no far an 
unconditionally good option and we'll probably have to wait for 
more GCC action (-Ok or so) before being able to enable size 
optimizations everywhere without unacceptable trade-offs.

Thanks,

	Ingo

  reply	other threads:[~2013-01-27 13:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-26 12:24 ling.ma.program
2013-01-27 13:09 ` Ingo Molnar [this message]
2013-01-27 13:38   ` Ling Ma

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