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xen-devel
[Xen-devel] Re: [dm-devel] [PATCH 1/8] dm-ioband: Introduction
To: |
psusi@xxxxxxxxxx |
Subject: |
[Xen-devel] Re: [dm-devel] [PATCH 1/8] dm-ioband: Introduction |
From: |
Hirokazu Takahashi <taka@xxxxxxxxxxxxx> |
Date: |
Fri, 14 Nov 2008 08:18:40 +0900 (JST) |
Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, agk@xxxxxxxxxxxxxx, xemul@xxxxxxxxxx, fernando@xxxxxxxxxxxxx, kamezawa.hiroyu@xxxxxxxxxxxxxx, balbir@xxxxxxxxxxxxxxxxxx |
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Thu, 13 Nov 2008 15:19:02 -0800 |
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Hi,
> Ryo Tsuruta wrote:
> > Create two ioband devices "ioband1" and "ioband2". "ioband1" is mapped
> > to "/dev/sda1" and has a weight of 40. "ioband2" is mapped to "/dev/sda2"
> > and has a weight of 10. "ioband1" can use 80% --- 40/(40+10)*100 ---
> > of the bandwidth of the physical disk "/dev/sda" while "ioband2" can use
> > 20%.
>
> Just to clarify, when you say ioband1 can use 80% of the bandwidh, you
> mean that is how much it will get if both io bands are loaded right? If
> there is no activity on ioband2, then ioband1 will get the full disk
> bandwidth right?
Absolutely, you are right!
Thank you,
Hirokazu Takahashi.
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