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[Bug 2008762] Re: size_iops_sec does behave different than mentioned in docs

 

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

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/2008762

Title:
  size_iops_sec does behave different than mentioned in docs

Status in OpenStack Compute (nova):
  Expired

Bug description:
  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.

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