On Tue 22 Sep 2015 05:00:05 PM CEST, Max Reitz wrote: >> The correct way to solve this seems to be that each BB has its own >> I/O throttling filter. Actually, if we could lift the throttling code >> to BlockBackend, that might solve the problem. > > So yes, as long as we have throttling on the BDS level, something may > always break when having multiple BBs per BDS, because you'd probably > want throttling to be on the BB level. But lifting that doesn't seem a > trivial task, and I don't really know whether I want this in this > series. > > Especially considering that right now you cannot have multiple BBs per > BDS. > > All in all: Yes, before we allow multiple BBs per BDS we want > throttling to be on the BB level. But this is nothing that should be > done in or for this series, since right now we do not allow multiple > BBs per BDS.
I agree that it makes sense to move throttling to the BB level. It's probably not trivial but I don't think it's too complex either. I can give it a look once this series has been merged. Berto
