From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DE2ACA9ECB for ; Thu, 31 Oct 2019 21:22:09 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4FF992067D for ; Thu, 31 Oct 2019 21:22:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Zu8aMJLW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4FF992067D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DFC136B0005; Thu, 31 Oct 2019 17:22:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D84B06B0006; Thu, 31 Oct 2019 17:22:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C99DD6B000A; Thu, 31 Oct 2019 17:22:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0194.hostedemail.com [216.40.44.194]) by kanga.kvack.org (Postfix) with ESMTP id A2F616B0005 for ; Thu, 31 Oct 2019 17:22:08 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 4C8AA181AEF39 for ; Thu, 31 Oct 2019 21:22:08 +0000 (UTC) X-FDA: 76105352736.13.river16_870b536605050 X-HE-Tag: river16_870b536605050 X-Filterd-Recvd-Size: 2619 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf37.hostedemail.com (Postfix) with ESMTP for ; Thu, 31 Oct 2019 21:22:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=xJnS2gKgHjZwKIXoPBsFqoULOP0zn3va2TnZ/oOJ3gw=; b=Zu8aMJLWjIYFVQR1/YLr7B6fX nz2eqJ4vQdXty7zLXyepGBMGFvcNRitsdlp9URLiH51b1V2AVOMRexVZAObnKb0VERCBSoP/yak/L nhgNS+BRkms5Nd0D2kNFhquds/QSKki19XH/FnjdjolXimiMPpS0k95oMDNbKgCT1giYanPdMoQn4 im+KO1duNYuP4umtwyFOQISP8/EvZWW8q+UyLoys02aYC+hzv9CPhoFe+kRAJhUZTuFLKQDmMQoc1 9n0Evz5tGYfWURNL2whZUuScTx1e1ovBq/kOgKzl8ly38rIeawCD3/sMtcqNu13EEF4+YhsXZQz4w 3qV9r9R6Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1iQHtN-0008MS-T6; Thu, 31 Oct 2019 21:22:05 +0000 Date: Thu, 31 Oct 2019 14:22:05 -0700 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Dave Chinner , linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 04/26] xfs: Improve metadata buffer reclaim accountability Message-ID: <20191031212205.GB6244@infradead.org> References: <20191009032124.10541-1-david@fromorbit.com> <20191009032124.10541-5-david@fromorbit.com> <20191030172517.GO15222@magnolia> <20191030214335.GQ4614@dread.disaster.area> <20191031030658.GW15222@magnolia> <20191031205049.GS4614@dread.disaster.area> <20191031210551.GK15221@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191031210551.GK15221@magnolia> User-Agent: Mutt/1.12.1 (2019-06-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Bogosity: Ham, tests=bogofilter, spamicity=0.000077, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Oct 31, 2019 at 02:05:51PM -0700, Darrick J. Wong wrote: > Sounds like a reasonable place (to me) to record the fact that we want > inodes and metadata buffers not to end up concentrating on a single node. > > At least until we start having NUMA systems with a separate "IO node" in > which to confine all the IO threads and whatnot . :P Wait until someone does a Linux port to the Cray T3E ;-)