linux-kernel - Re: [PATCH] x86/intel_rdt: Implement "update" mode when writing schemata file

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Message-ID: <alpine.DEB.2.20.1703311022040.1780@nanos>
Date:   Fri, 31 Mar 2017 10:24:15 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "Luck, Tony" <tony.luck@...el.com>
cc:     Vikas Shivappa <vikas.shivappa@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/intel_rdt: Implement "update" mode when writing
 schemata file

On Fri, 24 Mar 2017, Luck, Tony wrote:
> +Reading/writing the schemata file
> +---------------------------------
> +Reading the schemata file will show the state of all resources
> +on all domains. When writing you only need to specify those values
> +which you wish to change.  E.g.
> +
> +# cat schemata
> +L3DATA:0=fffff;1=fffff;2=fffff;3=fffff
> +L3CODE:0=fffff;1=fffff;2=fffff;3=fffff
> +# echo "L3DATA:2=3c0;" > schemata
> +# cat schemata
> +L3DATA:0=fffff;1=fffff;2=3c0;3=fffff
> +L3CODE:0=fffff;1=fffff;2=fffff;3=fffff

It would be nice if the output would cover the mask width, i.e:

L3DATA:0=fffff;1=fffff;2=003c0;3=fffff
L3CODE:0=fffff;1=fffff;2=fffff;3=fffff

because that makes it tabular and simpler to read.

Thanks,

	tglx