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From: Peter Monta <pmonta@halibut.imedia.com>
To: linux-sound@vger.kernel.org
Subject: Re: Streaming disk I/O kills file buffering and makes Linux unusable
Date: Mon, 23 Aug 1999 17:06:43 +0000	[thread overview]
Message-ID: <marc-linux-sound-93542839103812@msgid-missing> (raw)
In-Reply-To: <marc-linux-sound-93541443318803@msgid-missing>

> 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.

  reply	other threads:[~1999-08-23 17:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-08-23 13:20 Streaming disk I/O kills file buffering and makes Linux unusable Benno Senoner
1999-08-23 17:06 ` Peter Monta [this message]
1999-08-23 17:25 ` Linus Torvalds
1999-08-23 17:42 ` Peter Monta
1999-08-23 18:06 ` Benno Senoner
1999-08-23 18:32 ` Alan Cox
1999-08-23 18:39 ` Chuck Lever
1999-08-23 19:25 ` Andrea Arcangeli
1999-08-23 20:20 ` Benno Senoner
1999-08-23 20:50 ` Benno Senoner
1999-08-23 20:51 ` Benno Senoner
1999-08-23 21:01 ` Andrea Arcangeli
1999-08-24  0:48 ` Dave Mielke
1999-08-24  7:37 ` Gerard Roudier
1999-08-24  7:56 ` Gerard Roudier

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