Dominik Klein wrote:
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.
Hi Dominik, Hmm.. "blkio.weight" is used to control the Minimal Maximal Bandwidth. If you'd like to control Max bandwidth to let your guests become I/O hungery. "blkio.throttle.*" should helps. But these tunables aren't supported by blkiotune for the time being. I'm considering to implement them in the future. Thanks, Gui
Regards Dominik