From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Yu Subject: Re: [PATCH] Introduce lifetime write IO statistics Date: Wed, 27 Jan 2016 21:03:14 +0800 Message-ID: <56A8C012.7030904@kernel.org> References: <1453794038-189520-1-git-send-email-liushuoran@huawei.com> <00a101d1581b$6a7ad090$3f7071b0$@samsung.com> <56A7468A.5050600@huawei.com> <00c801d158d3$4507ae10$cf170a30$@samsung.com> <56A87462.7010502@huawei.com> <00da01d158e9$f170a290$d451e7b0$@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aOPkw-00058z-Cw for linux-f2fs-devel@lists.sourceforge.net; Wed, 27 Jan 2016 13:03:30 +0000 Received: from mail.kernel.org ([198.145.29.136]) by sog-mx-4.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1aOPkv-00013y-FG for linux-f2fs-devel@lists.sourceforge.net; Wed, 27 Jan 2016 13:03:30 +0000 In-Reply-To: <00da01d158e9$f170a290$d451e7b0$@samsung.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: 'Shuoran' Cc: jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net On 1/27/16 6:02 PM, Chao Yu wrote: > IMO, maybe it's better to use journal log in data segments to store data -> node > checkpoint related data, maybe more nats/sits entries. > > And another thing is I'm in doubt that whether it is enough to use cp + > data journal to update stat, since abnormal pow-cut after a normal cp would ditto. > make us losing all stats saved before. ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140