linux-kernel - Re: [PATCH] x86/cpuid: Fewer CPUID invocations in init_scattered_cpuid

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Message-ID: <20180124095621.fc73dsxszhp6bn7f@pd.tnic>
Date:   Wed, 24 Jan 2018 10:56:21 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     David Woodhouse <dwmw@...zon.co.uk>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/cpuid: Fewer CPUID invocations in
 init_scattered_cpuid_features()

On Tue, Jan 23, 2018 at 06:32:16PM +0100, Borislav Petkov wrote:
> It's probably not even worth doing anything though - I doubt the speedup
> is visible at all.

One more thing I forgot to mention yesterday: I'm working on changing
the CPUID parsing we do now and we'll probably end up simply reading in
all CPUID leafs so scattered.c will disappear eventually. So I wouldn't
waste my energy on it.

:-)

-- 
Regards/Gruss,
    Boris.

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