linux-kernel - Re: [patch 00/19] VM pageout scalability improvements

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Message-ID: <Pine.LNX.4.64.0801071107440.23617@schroedinger.engr.sgi.com>
Date:	Mon, 7 Jan 2008 11:07:54 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Lee Schermerhorn <Lee.Schermerhorn@...com>
cc:	Andi Kleen <andi@...stfloor.org>, Rik van Riel <riel@...hat.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Eric Whitney <eric.whitney@...com>,
	Nick Dokos <nicholas.dokos@...com>
Subject: Re: [patch 00/19] VM pageout scalability improvements

On Fri, 4 Jan 2008, Lee Schermerhorn wrote:

> We see this on both NUMA and non-NUMA. x86_64 and ia64.  The basic
> criteria to reproduce is to be able to run thousands [or low 10s of
> thousands] of tasks, continually increasing the number until the system
> just goes into reclaim.  Instead of swapping, the system seems to
> hang--unresponsive from the console, but with "soft lockup" messages
> spitting out every few seconds...

Ditto here.

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