Re: Regarding dm-ioband tests

From: Balbir Singh
Date: Mon Sep 07 2009 - 23:23:20 EST

* Ryo Tsuruta <ryov@xxxxxxxxxxxxx> [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?

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