size_iops_sec does behave different than mentioned in docs

[Mohammad Fatemipour]

In documentations mentioned that size_iops_sec is "burst bucket size"

https://docs.openstack.org/cinder/latest/admin/basic-volume-qos.html

but in libvirt documentations is: "The optional size_iops_sec element is the size of I/O operations per second"

https://libvirt.org/formatdomain.html

and in qemu documentations "iops-size" described as "This setting specifies the size (in bytes) of an I/O
request for accounting purposes. Larger requests will be counted
proportionally to this size."

https://github.com/qemu/qemu/blob/master/docs/throttle.txt

so I think it is not related to burst bucket size.

and of course we do not have support for *_max_length parameters for burst duration in nova.

[sean mooney (sean-k-mooney)]

did you mean to file this to cinder.

or did you file this for disk quota in the flavor

https://github.com/openstack/nova/blob/master/nova/api/validation/extra_specs/quota.py#L149-L167

i assume for the first link
https://docs.openstack.org/cinder/latest/admin/basic-volume-qos.html
that this should be a cinder bug

[Sofia Enriquez (lsofia-enriquez)]

Hi,
I'm going to remove Cinder from this bug. If this is wrong, please let me know why Cinder should be added to this bug.
Thanks!

[Launchpad Janitor (janitor)]

[Expired for OpenStack Compute (nova) because there has been no activity for 60 days.]