Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759386AbXJYCkv (ORCPT ); Wed, 24 Oct 2007 22:40:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754669AbXJYCkn (ORCPT ); Wed, 24 Oct 2007 22:40:43 -0400 Received: from smtp109.mail.mud.yahoo.com ([209.191.85.219]:20721 "HELO smtp109.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754148AbXJYCkn (ORCPT ); Wed, 24 Oct 2007 22:40:43 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=U9mLoSEKXgmF6pd58XqQ7OIBlbTREcnOeIPRC9ezYWIewZSxH78gsPUMpdGiQa+6iIBmEK4r9PlDa5eNaVGabMmPs2/PjOv7ediGPUBcqMXBGk33yoXrobI+8CrOtg82GJyNnhPHTZ21qVv7NoO+ftFzNsl8oEUvdLuNmCibe2A= ; X-YMail-OSG: z.JGa6gVM1mAHx.QXV8.zCmy5emeJyUE7cjL1X1.qMNnQ9VsKkwT.ZL704mJJEX2Z6Iyk.oS0w-- From: Nick Piggin To: Christoph Lameter Subject: Re: SLUB 0:1 SLAB (OOM during massive parallel kernel builds) Date: Thu, 25 Oct 2007 12:34:01 +1000 User-Agent: KMail/1.9.5 Cc: Alexey Dobriyan , Mel Gorman , Pekka Enberg , linux-kernel@vger.kernel.org, linux-mm@vger.kernel.org References: <20071023181615.GA10377@martell.zuzino.mipt.ru> <20071024192849.GA3206@martell.zuzino.mipt.ru> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710251234.01440.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 923 Lines: 20 On Thursday 25 October 2007 12:15, Christoph Lameter wrote: > On Wed, 24 Oct 2007, Alexey Dobriyan wrote: > > [12728.701398] DMA free:8032kB min:32kB low:40kB high:48kB active:2716kB > > inactive:2208kB present:12744kB pages_scanned:9299 all_unreclaimable? > > yes [12728.701567] lowmem_reserve[]: 0 2003 2003 2003 [12728.701654] > > Ummm... all unreclaimable is set! Are you mlocking the pages in memory? Or > what causes this? All pages under writeback? What is the dirty ratio set > to? Why is SLUB behaving differently, though. Memory efficiency wouldn't be the reason, would it? I mean, SLUB should be more efficient than SLAB, plus have less data lying around in queues. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/