From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@suse.de>, Ingo Molnar <mingo@kernel.org>,
ling.ma.program@gmail.com, mingo@redhat.com, tglx@linutronix.de,
linux-kernel@vger.kernel.org, Ma Ling <ling.ml@alipay.com>
Subject: Re: [Suggestion] [x86]: Compiler Option Os is better on latest x86
Date: Thu, 24 Jan 2013 08:56:26 -0600 [thread overview]
Message-ID: <51014B9A.5080500@zytor.com> (raw)
In-Reply-To: <20130124144612.GC13471@pd.tnic>
On 01/24/2013 08:46 AM, Borislav Petkov wrote:
>
> Hmm, I'm not sure about -Os: 3a55fb0d9fe8e2f4594329edd58c5fd6f35a99dd
>
> And 0.01/0.03 IPC improvement doesn't really look too persuasive IMO.
>
There has been occasional talk about a -Ok(ernel) option to gcc, but
that would require someone to go through gcc and figure out what bits
makes sense and which don't...
-hpa
next prev parent reply other threads:[~2013-01-24 14:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-26 6:32 [Suggestion] [x86]: Compiler Option Os is better on latest x86 ling.ma.program
2013-01-24 14:17 ` Ingo Molnar
2013-01-24 14:46 ` Borislav Petkov
2013-01-24 14:56 ` H. Peter Anvin [this message]
2013-01-24 15:25 ` Borislav Petkov
2013-01-24 15:35 ` H. Peter Anvin
[not found] <1356939140-4113-1-git-send-email-ling.ma@alipay.com>
2012-12-31 7:52 ` Ling Ma
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