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 CD0797F3F for ; Sat, 26 Oct 2013 22:29:12 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id AB1F88F8039 for ; Sat, 26 Oct 2013 20:29:09 -0700 (PDT) Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id MRZVRGjonUDp1VQs for ; Sat, 26 Oct 2013 20:29:08 -0700 (PDT) Message-ID: <526C8882.2090909@sandeen.net> Date: Sat, 26 Oct 2013 22:29:06 -0500 From: Eric Sandeen MIME-Version: 1.0 Subject: Re: Questions about XFS References: <20131025164255.46d2829c@harpe.intellique.com> <526A86F2.9070400@sandeen.net> <526B9C55.9000707@hardwarefreak.com> In-Reply-To: <526B9C55.9000707@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: stan@hardwarefreak.com, xfs@oss.sgi.com On 10/26/13 5:41 AM, Stan Hoeppner wrote: > 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"? Yeah, you are right. Brain fart. > 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. There were 2 versions, implemented in very different ways... Anyway, if Harry would "prefer designing and implementing" it for Linux, I'll just let him get started. :) -Eric _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs