linux-kernel - Re: [PATCH] cgroup: limit block I/O bandwidth

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Message-ID: <4790A379.6090401@users.sourceforge.net>
Date:	Fri, 18 Jan 2008 14:02:49 +0100 (MET)
From:	Andrea Righi <righiandr@...rs.sourceforge.net>
To:	Paul Menage <menage@...gle.com>
Cc:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cgroup: limit block I/O bandwidth

Paul Menage wrote:
> On Jan 18, 2008 7:36 AM, Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:
>> On Fri, Jan 18, 2008 at 12:41:03PM +0100, Andrea Righi wrote:
>>> Allow to limit the block I/O bandwidth for specific process containers
>>> (cgroups) imposing additional delays on I/O requests for those processes
>>> that exceed the limits defined in the control group filesystem.
>>>
>>> Example:
>>>   # mkdir /dev/cgroup
>>>   # mount -t cgroup -oio-throttle io-throttle /dev/cgroup
>> Just a minor nit, can't we name it as io, keeping in mind that other
>> controllers are known as cpu and memory?
> 
> Or maybe "blockio"?

Agree, blockio seems better. Not all I/O is performed on block devices
and in this case we're considering block devices only.

-Andrea
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