linux-kernel - Re: Scalability Question

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Date:	Sat, 05 Jul 2014 05:24:07 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Nick Krause <xerofoify@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Scalability Question

On Fri, 2014-07-04 at 16:40 -0400, Nick Krause wrote: 
> I am curious after reading some outdated kernel papers, how scalable
> is the kernel of
> late? I am curious mostly in memory and cpu subsystems as file systems
> will change
> based on user's choice.

You can currently configure for up to 8192 CPUs.  I've not seen any
benchmark data whatsoever for huge boxen, have no idea where which
subsystem crumbles.  SGI asked for the increase to 8192, so presumably
do manage to squeeze acceptable performance out of size XXXXL boxen.

-Mike

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