On Thu 25 Feb 2021 06:34:48 PM CET, Peter Lieven <p...@kamp.de> wrote: > I was wondering if there is a way to check from outside (qmp etc.) if > a throttled block device has exceeded the iops_max_length seconds of > time bursting up to iops_max and is now hard limited to the iops limit > that is supplied? > > Would it be also a good idea to exetend the accounting to account for > requests that must have waited before being sent out to the backend > device?
No, there's no such interface as far as I'm aware. I think one problem is that throttling is now done using a filter, that can be inserted anywhere in the node graph, and accounting is done at the BlockBackend level. We don't even have a query-block-throttle function. I actually started to write one six years ago but it was never finished. Berto
