From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 76D387F3F for ; Sat, 26 Oct 2013 05:41:35 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 62C258F8039 for ; Sat, 26 Oct 2013 03:41:32 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id QDzm4pkdRtVWcetK for ; Sat, 26 Oct 2013 03:41:28 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id DC24A6C158 for ; Sat, 26 Oct 2013 05:41:27 -0500 (CDT) Message-ID: <526B9C55.9000707@hardwarefreak.com> Date: Sat, 26 Oct 2013 05:41:25 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: Questions about XFS References: <20131025164255.46d2829c@harpe.intellique.com> <526A86F2.9070400@sandeen.net> In-Reply-To: <526A86F2.9070400@sandeen.net> Reply-To: stan@hardwarefreak.com 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 Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com On 10/25/2013 9:57 AM, Eric Sandeen wrote: > allocator, but it doesn't have GRIO (Guaranteed Realtime I/O) like > IRIX does. Wasn't it called "Guaranteed-Rate I/O"? And required the Origin ccNUMA hardware including the HUB and XBow ASICs? IIRC this had no real-time guarantee, but simply reserved X amount of bandwidth from the XBow through the HUB to the processor, and finally the kernel and process. Whether the attached disks could sustain the reserved bandwidth was another matter. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs