From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Monta Date: Mon, 23 Aug 1999 17:06:43 +0000 Subject: Re: Streaming disk I/O kills file buffering and makes Linux unusable Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sound@vger.kernel.org > Will future kernels ave an O_DIRECT like flag to avoid caching ? Stephen Tweedie has written a patch for unbuffered I/O; the URL I have from some time ago is ftp://ftp.linux.org.uk/pub/linux/sct/fs/raw-io though this host doesn't seem to respond at the moment. I believe Stephen has mentioned that this will go into the main tree at some point. (Possibly it's already in 2.3.x---I haven't looked recently.) > I think without some buffer-cache usage limiting, or buffering disabling, > Linux is actually UNSUITABLE for streaming applications which do run > concurrently with other apps. I agree; the raw-io system will make this much more pleasant. Cheers, Peter Monta pmonta@imedia.com Imedia Corp.