From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: Ryo Tsuruta <ryov@valinux.co.jp>
Cc: riel@redhat.com, vgoyal@redhat.com, linux-kernel@vger.kernel.org,
dm-devel@redhat.com, jens.axboe@oracle.com, agk@redhat.com,
akpm@linux-foundation.org, nauman@google.com,
guijianfeng@cn.fujitsu.com, jmoyer@redhat.com
Subject: Re: Regarding dm-ioband tests
Date: Tue, 8 Sep 2009 08:52:55 +0530 [thread overview]
Message-ID: <20090908032254.GJ8315@balbir.in.ibm.com> (raw)
In-Reply-To: <20090908.120119.71095369.ryov@valinux.co.jp>
* Ryo Tsuruta <ryov@valinux.co.jp> [2009-09-08 12:01:19]:
> I think there are some advantages to dm-ioband. That's why I post
> dm-ioband to the mailing list.
>
> - dm-ioband supports not only proportional weight policy but also rate
> limiting policy. Besides, new policies can be added to dm-ioband if
> a user wants to control bandwidth by his or her own policy.
> - The dm-ioband driver can be replaced without stopping the system by
> using device-mapper's facility. It's easy to maintain.
> - dm-ioband can use without cgroup. (I remember Vivek said it's not an
> advantage.)
But don't you need page_cgroup for IO tracking?
--
Balbir
next prev parent reply other threads:[~2009-09-08 3:23 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-01 16:50 Vivek Goyal
2009-09-01 17:47 ` Vivek Goyal
2009-09-03 13:11 ` Vivek Goyal
2009-09-04 1:12 ` Ryo Tsuruta
2009-09-15 21:40 ` dm-ioband fairness in terms of sectors seems to be killing disk (Was: Re: Regarding dm-ioband tests) Vivek Goyal
2009-09-16 11:10 ` dm-ioband fairness in terms of sectors seems to be killing disk Ryo Tsuruta
2009-09-04 4:02 ` Regarding dm-ioband tests Ryo Tsuruta
2009-09-04 23:11 ` Vivek Goyal
2009-09-07 11:02 ` Ryo Tsuruta
2009-09-07 13:53 ` Rik van Riel
2009-09-08 3:01 ` Ryo Tsuruta
2009-09-08 3:22 ` Balbir Singh [this message]
2009-09-08 5:05 ` Ryo Tsuruta
2009-09-08 13:49 ` Vivek Goyal
2009-09-09 5:17 ` Ryo Tsuruta
2009-09-09 13:34 ` Vivek Goyal
2009-09-08 13:42 ` Vivek Goyal
2009-09-08 16:30 ` Nauman Rafique
2009-09-08 16:47 ` Rik van Riel
2009-09-08 17:54 ` Vivek Goyal
2009-09-15 23:37 ` ioband: Writer starves reader even without competitors (Re: Regarding dm-ioband tests) Vivek Goyal
2009-09-16 12:08 ` ioband: Writer starves reader even without competitors Ryo Tsuruta
2009-09-08 17:06 ` Regarding dm-ioband tests Dhaval Giani
2009-09-09 6:05 ` Ryo Tsuruta
2009-09-09 10:51 ` Dhaval Giani
2009-09-10 7:58 ` Ryo Tsuruta
2009-09-11 9:53 ` Dhaval Giani
2009-09-15 15:12 ` Ryo Tsuruta
2009-09-15 15:19 ` Balbir Singh
2009-09-15 15:58 ` Rik van Riel
2009-09-15 16:21 ` Ryo Tsuruta
2009-09-09 13:57 ` Vivek Goyal
2009-09-10 3:06 ` Ryo Tsuruta
2009-09-09 10:01 ` Ryo Tsuruta
2009-09-09 14:31 ` Vivek Goyal
2009-09-10 3:45 ` Ryo Tsuruta
2009-09-10 13:25 ` Vivek Goyal
2009-09-08 19:24 ` Rik van Riel
2009-09-09 0:09 ` Fabio Checconi
2009-09-09 2:06 ` Vivek Goyal
2009-09-09 15:41 ` Fabio Checconi
2009-09-09 17:30 ` Vivek Goyal
2009-09-09 19:01 ` Fabio Checconi
2009-09-09 9:24 ` Ryo Tsuruta
2009-09-16 4:45 ` ioband: Limited fairness and weak isolation between groups (Was: Re: Regarding dm-ioband tests) Vivek Goyal
2009-09-18 7:33 ` ioband: Limited fairness and weak isolation between groups Ryo Tsuruta
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