From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Liu Subject: Re: [LSF/MM ATTEND] Filesystems -- Btrfs, cgroups, Storage topics from Facebook Date: Tue, 31 Dec 2013 17:36:46 +0800 Message-ID: <52C2902E.6020705@oracle.com> References: <1388439412.16965.27.camel@ret> <20131231084927.GA29449@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: clm@fb.com, lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org To: Zheng Liu Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:17467 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752489Ab3LaJg7 (ORCPT ); Tue, 31 Dec 2013 04:36:59 -0500 In-Reply-To: <20131231084927.GA29449@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 2013=E5=B9=B412=E6=9C=8831=E6=97=A5 16:49, Zheng Liu wrote: > Hi Chris, >=20 > On Mon, Dec 30, 2013 at 09:36:20PM +0000, Chris Mason wrote: >> Hi everyone, >> >> I'd like to attend the LSF/MM conference this year. My current >> discussion points include: >> >> All things Btrfs! >> >> Adding cgroups for more filesystem resources, especially to limit th= e >> speed dirty pages are created. >=20 > Interesting. If I remember correctly, IO-less dirty throttling has b= een > applied into upstream kernel, which can limit the speed that dirty pa= ges > are created. Does it has any defect? Have you really experienced in cgroup + IO less throttle? AFAICS, IO less is aimed to reduce foreground writeback and low latency= pauses in balance_dirty_pages(), but it is independent to cgroup. It seems th= at the cgroup throttle is still under discussion on: http://markmail.org/message/kdda272qiah77np4. Thanks, -Jeff -- 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