From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: Re: [PATCH 8/8] vm: Add an tuning knob for vm.max_writeback_mb Date: Wed, 09 Sep 2009 15:36:04 +0300 Message-ID: <4AA7A134.100@gmail.com> References: <1252401791-22463-1-git-send-email-jens.axboe@oracle.com> <1252401791-22463-9-git-send-email-jens.axboe@oracle.com> <4AA633FD.3080006@gmail.com> <1252425983.7746.120.camel@twins> <20090908162936.GA2975@think> <20090909092901.GA24185@localhost> <20090909122805.GA30238@infradead.org> <20090909123223.GB23006@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Christoph Hellwig , Chris Mason , Peter Zijlstra , Jens Axboe , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "david@fromorbit.com" , "akpm@linux-foundation.org" , "jack@suse.cz" , "Theodore Ts'o" To: Wu Fengguang Return-path: Received: from smtp.nokia.com ([192.100.122.233]:47119 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751542AbZIIMhd (ORCPT ); Wed, 9 Sep 2009 08:37:33 -0400 In-Reply-To: <20090909123223.GB23006@localhost> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 09/09/2009 03:32 PM, Wu Fengguang wrote: > On Wed, Sep 09, 2009 at 08:28:06PM +0800, Christoph Hellwig wrote: >> On Wed, Sep 09, 2009 at 05:29:01PM +0800, Wu Fengguang wrote: >>> It seems that balance_dirty_pages() is not coupled with MAX_WRITEBA= CK_PAGES. >>> Instead it uses the much smaller (ratelimit_pages + ratelimit_pages= / 2). >> >> With Jen's writeback patches applied balance_dirty_pages does not st= art >> writeback itself anymore but calls bdi_start_writeback to let the >> flusher thread do it. >> >> it would be good if we do any writeback tuning ontop of these patche= s.. > > Ah OK. I'm using latest linux-next and expected his patches to be the= re.. At least few days ago they were there. --=20 Best Regards, Artem Bityutskiy (=D0=90=D1=80=D1=82=D1=91=D0=BC =D0=91=D0=B8=D1=82=D1=8E= =D1=86=D0=BA=D0=B8=D0=B9) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html