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Message-ID: <alpine.DEB.2.20.1609081208390.5647@nanos>
Date: Thu, 8 Sep 2016 12:14:12 +0200 (CEST)
From: Thomas Gleixner <tglx@...utronix.de>
To: Fenghua Yu <fenghua.yu@...el.com>
cc: "H. Peter Anvin" <h.peter.anvin@...el.com>,
Ingo Molnar <mingo@...e.hu>, Tony Luck <tony.luck@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Tejun Heo <tj@...nel.org>, Borislav Petkov <bp@...e.de>,
Stephane Eranian <eranian@...gle.com>,
Marcelo Tosatti <mtosatti@...hat.com>,
David Carrillo-Cisneros <davidcc@...gle.com>,
Shaohua Li <shli@...com>,
Ravi V Shankar <ravi.v.shankar@...el.com>,
Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
Sai Prakhya <sai.praneeth.prakhya@...el.com>,
linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v2 13/33] Define CONFIG_INTEL_RDT
On Thu, 8 Sep 2016, Fenghua Yu wrote:
> From: Vikas Shivappa <vikas.shivappa@...ux.intel.com>
This changelog is still utter crap.
> CONFIG_INTEL_RDT is defined.
We know already from $subject that CONFIG_INTEL_RDT is introduced.
> The option provides support for resource
> allocation which is a sub-feature of Intel Resource Director Technology
> (RDT).
The config switch says:
> +config INTEL_RDT
> + bool "Intel Resource Director Technology support"
So what? Is this now resource allocation or resource director or does the
actual stuff introduce something completely different?
> + default n
> + depends on X86_64 && CPU_SUP_INTEL
Why is this 64bit only? The changelog and/or the help text should tell
that.
> + help
> + This option provides support for resource allocation which is a
> + sub-feature of Intel Resource Director Technology(RDT).
Sure and you repeat the changelog nonsense here again.
> + Current implementation supports L3 cache allocation.
> + Using this feature a user can specify the amount of L3 cache space
> + into which an application can fill.
Sigh
tglx
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