linux-kernel - Re: [RFC PATCH] x86, fpu: Use eagerfpu by default on all CPUs

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Message-ID: <20150223150350.GB22753@pd.tnic>
Date:	Mon, 23 Feb 2015 16:03:50 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Rik van Riel <riel@...hat.com>
Cc:	Andy Lutomirski <luto@...capital.net>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Ingo Molnar <mingo@...nel.org>,
	Oleg Nesterov <oleg@...hat.com>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [RFC PATCH] x86, fpu: Use eagerfpu by default on all CPUs

On Mon, Feb 23, 2015 at 07:51:04AM -0500, Rik van Riel wrote:
> At that point we either load the FPU context, or we
> set CR0.TS.

Right, but provided eager doesn't bring any slowdown, we can drop the TS
fiddling altogether and only load FPU context.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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