linux-kernel - Re: [PATCH 0/14] v2 multi-die/package topology support

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Message-ID: <20190226185358.GQ2861@worktop.programming.kicks-ass.net>
Date:   Tue, 26 Feb 2019 19:53:58 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Len Brown <lenb@...nel.org>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/14] v2 multi-die/package topology support

On Tue, Feb 26, 2019 at 01:19:58AM -0500, Len Brown wrote:
> Added sysfs package_threads, package_threads_list
> 
> 	Added this attribute to show threads siblings in a package.
> 	Exactly same as "core_siblings above", a name now deprecated.
> 	This attribute name and definition is immune to future
> 	topology changes.
> 
> 	Suggested by Brice.
> 
> Added sysfs die_threads, die_threads_list
> 
> 	Added this attribute to show which threads siblings in a die.
> 	V1 had proposed putting this info into "core_siblings", but we
> 	decided to leave that legacy attribute alone.
> 	This attribute name and definition is immune to future
> 	topology changes.
> 
> 	On a single die-package system this attribute has same contents
> 	as "package_threads".
> 
> 	Suggested by Brice.
> 
> Added sysfs core_threads, core_threads_list
> 
> 	Added this attribute to show which threads siblings in a core.
> 	Exactly same as "thread_siblings", a name now deprecated.
> 	This attribute name and definition is immune to future
> 	topology changes.
> 
> 	Suggested by Brice.

I think I prefer 's/threads/cpus/g' on that. Threads makes me think SMT,
and I don't think there's any guarantee the part in question will have
SMT on.