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 17:42:05 +0000 [thread overview]
Message-ID: <marc-linux-sound-93543158007968@msgid-missing> (raw)
In-Reply-To: <marc-linux-sound-93541443318803@msgid-missing>
> > I agree; the raw-io system will make this much more pleasant.
>
> Why do you think so?
>
> IO is IO, whether it is raw or not. And it will eat up resources from
> everybody else trying to do IO.
True; raw I/O won't magically increase resources. But it offers
a valuable way to tell the kernel something it can't know/infer: a good
buffering policy for streaming data. The existing cache mechanism
for normal I/O works fine but is inappropriate for this case; indeed
perfectly good working sets are messed up by buffering the streaming data,
as Benno points out.
Cheers,
Peter
next prev parent reply other threads:[~1999-08-23 17:42 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
1999-08-23 17:25 ` Linus Torvalds
1999-08-23 17:42 ` Peter Monta [this message]
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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