Re: [RFC] nodeinfo - CPU architecture information helper

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Hi Andi,

From: Andi Kleen <andi@xxxxxxxxxxxxxx>
Subject: Re: [RFC] nodeinfo - CPU architecture information helper
Date: Thu, 03 Jul 2008 11:29:22 +0200

> Cai Qian wrote:
> > Hi,
> > 
> > I propose a new tool nodeinfo to util-linux-ng, 
> 
> It's a good idea basically.
> 
> I don't like the name to be honest. nodeinfo is not very
> intuitive. Better would be "lscache", "ls..."
> 
> NUMA cell is unusual terminology, NUMA node.
> Actually that is already covered by numactl --hardware
> 
> It seems very Intel specific, might be better to use generalized
> terminology like SMT
> 
> But: if you do a parseable format i think it would be better
> to just stuff it into some /proc or /sys file in the kernel.
> 
> Using strings for dual core etc is unfortunate, there
> are triple cores etc.
> 
> Virtualization has the problem that it might be still
> disabled in the BIOS. Detecting that is tricky. Perhaps leave
> it out.
> 

Even if it may not reflect the setting of running system, it still
provides fairly valuable information to users, so I'll perhaps keep it
at the moment.

CaiQian

> On x86 it should report family/model etc.
> 
> So definitely needs far more work.
> 
> -Andi
> 
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