[libvirt] [PATCH 0/6 v3] Add blkio cgroup support

Dominik Klein dk at in-telegence.net
Fri Feb 18 07:52:07 UTC 2011


Hi Gui,

thanks for your reply.

> Actually, this two series doesn't care how blkio cgroup works. They just provide
> the ability to put Guest into given cgroup and tune the tunables.
> Currently, You can only control the "blkio.weight" tunable. For examle, If you'd
> like to give more I/O bandwidth to a given Guest, you can assign a bigger value
> to "blkio.weight" by running blkiotune command.

Okay, so then basically, if I understand the current state of the blkio
controller correctly (see my original message), this is useless at this
point.

I don't mean to offend you in any case, I just wondered how you used (or
intended to use) this, since I myself did not yet find a good way to
actually limit a guests I/O hunger.

Regards
Dominik




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