From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p07EYBXI067636 for ; Fri, 7 Jan 2011 08:34:11 -0600 Received: from mail-pw0-f53.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 99C6C248F8A for ; Fri, 7 Jan 2011 06:36:21 -0800 (PST) Received: from mail-pw0-f53.google.com (mail-pw0-f53.google.com [209.85.160.53]) by cuda.sgi.com with ESMTP id YwauzCYHtD6PTlb0 for ; Fri, 07 Jan 2011 06:36:21 -0800 (PST) Received: by pwj6 with SMTP id 6so3670482pwj.26 for ; Fri, 07 Jan 2011 06:36:21 -0800 (PST) Message-ID: <4D2724E0.9020801@philkarn.net> Date: Fri, 07 Jan 2011 06:36:16 -0800 From: Phil Karn MIME-Version: 1.0 Subject: realtime partition support? Reply-To: karn@ka9q.net List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com What's the status of the realtime partition feature in XFS? I think I read somewhere that it wasn't actually implemented and/or working in the Linux XFS implementation, but I'm not sure. If it is in Linux, how well tested is it? It occurred to me that the XFS realtime feature might be a quick and easy way to make a hybrid of a SSD and a rotating drive. Just create a XFS file system on the SSD that specifies the rotating drive as its realtime partition. This would put all the metadata on the SSD where it can be quickly accessed at random. Throughput on large files would be almost as fast as if everything were on the SSD. Small files wouldn't be as fast, but still much faster than with no SSD at all. Phil _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs