Received: with ECARTIS (v1.0.0; list linux-xfs); Thu, 07 Nov 2002 09:38:01 -0800 (PST) Received: from ledzep.americas.sgi.com (eaganfw1.SGI.COM [198.149.7.1]) by oss.sgi.com (8.12.5/8.12.5) with SMTP id gA7HbwuR001104 for ; Thu, 7 Nov 2002 09:37:58 -0800 Received: from poppy-e185.americas.sgi.com (poppy-e185.americas.sgi.com [128.162.185.207]) by ledzep.americas.sgi.com (SGI-8.9.3/americas-smart-nospam1.1) with ESMTP id LAA66174; Thu, 7 Nov 2002 11:39:06 -0600 (CST) Received: from stout.americas.sgi.com (stout.americas.sgi.com [128.162.187.5]) by poppy-e185.americas.sgi.com (980427.SGI.8.8.8/SGI-server-1.8) with ESMTP id LAA24567; Thu, 7 Nov 2002 11:39:06 -0600 (CST) Subject: Re: streaming media and realtime subvolume From: Eric Sandeen To: George Georgalis Cc: linux-xfs@oss.sgi.com In-Reply-To: <20021107173730.GB8321@trot> References: <20021107151729.GA7085@trot> <1036683254.13907.4.camel@stout.americas.sgi.com> <20021107173730.GB8321@trot> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 (1.0.3-6) Date: 07 Nov 2002 11:38:49 -0600 Message-Id: <1036690729.13877.14.camel@stout.americas.sgi.com> Mime-Version: 1.0 X-archive-position: 1565 X-ecartis-version: Ecartis v1.0.0 Sender: linux-xfs-bounce@oss.sgi.com Errors-to: linux-xfs-bounce@oss.sgi.com X-original-sender: sandeen@sgi.com Precedence: bulk X-list: linux-xfs On Thu, 2002-11-07 at 11:37, George Georgalis wrote: > Can you give examples of 'direct i/o'? do you mean like dd? from which I > can pipe stdout to my media player? No, like O_DIRECT, as in: fd = open("tempfile_direct", O_CREAT|O_RDWR|O_DIRECT, 0666); It bypasses the buffer cache. -Eric -- Eric Sandeen XFS for Linux http://oss.sgi.com/projects/xfs sandeen@sgi.com SGI, Inc. 651-683-3102