Subject: Re: Limiting disk I/O?
To: Jukka Marin <>
From: Steven M. Bellovin <>
List: tech-kern
Date: 11/13/2007 10:38:28
On Tue, 13 Nov 2007 08:52:55 +0200
Jukka Marin <> wrote:

> On Tue, Nov 13, 2007 at 07:40:09AM +0100, Michael van Elst wrote:
> > What happened to
> > ?
> Wouldn't it be simpler to implement a new sysctl'able variable to
> limit the tps to some percentage of the disk I/O capacity?  No need
> to monitor what the processes are doing.  

No, I don't think so -- I want processes that only need to to a little
I/O to to be able to get in even though the disk is busy.  We do that
for CPU consumption; why not for disk, too?

		--Steve Bellovin,