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From: Linda Walsh <lkml@tlinx.org>
To: Jike Song <albcamus@gmail.com>
Cc: Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2 physical-cpu (like 2x6core) config and NUMA?
Date: Tue, 18 Sep 2012 04:04:06 -0700	[thread overview]
Message-ID: <50585526.8050006@tlinx.org> (raw)
In-Reply-To: <CANE52Khbw0-iA=nAebySc=Fw-6CtY-wuOC9Kw_UE3mbkOAKJmA@mail.gmail.com>

Jike Song wrote:
> Do you have anything printed with:
>
>  # acpidump -a --table SRAT
>   
It prints out a bunch of stuff, but the word SRAT wasn't in the
output.

I don't remember a node interleaving in the BIOS -- There's a ECC mode,
where I only get 4/6 slots for usable memory, or an optimized mode that uses
6/6 mem sort.  Each processer has it's own set of 6-slots for memory
(PowerEdge 610 dual X5660's)...

I wonder if the optimizing mode is node interleaving?   But the only other
result results in taking a 1/3rd memory penalty...Hmm...

I'm wondering about this BIOS .. I had to use pcie_aspm=force to get it
to get some parts to work at all.  Like the on-board I/O DMA engine --
linux didn't even see the hardware without the aspm=force.

Maybe a bios update is needed?  will probe along those lines...

I can always call Dell tech support...still under warantee...;-)

Thanks for the ideas and confirmation....


> Hope that helps.
>   
Yep!



      reply	other threads:[~2012-09-18 11:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-17 18:00 2 physical-cpu (like 2x6core) config and NUMA? Linda Walsh
2012-09-18  5:05 ` Mike Galbraith
2012-09-18  6:55 ` Jike Song
2012-09-18 11:04   ` Linda Walsh [this message]

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