cinder/releasenotes/notes/pure_storage_scheduler_data-9b28bb309b17e8aa.yaml
Simon Dodsley d7f532ee3c [Pure Storage] Enhance reported performance characteristics
Change reported performance characteristics to report an average value
over the last 30 seconds, rather than a point in time. This will ensure
that load balance scheduling better caters for anomalous peaks and troughs.

Deprecate the ``queue_depth`` characteristic and replace with more granular
IO queueing performance data.

Change-Id: I18dc6c8490a8d5771f70310f9ff3f4127e7596e5
2024-11-20 14:58:10 -05:00

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YAML

---
features:
- |
Pure Storage: Added additional IO queueing performance characteristics
``queue_usec_per_mirrored_write_op``, ``queue_usec_per_read_op`` and
``queue_usec_per_write_op``, to array statistics used by the scheduler.
- |
Pure Storage: Changed performance metrics to report average over the previous
30 seconds, rather than using point-in-time information.
deprecations:
- |
Pure Storage: Deprecation of ``queue_depth`` performance characteristic
return by array statistics. This will be fully removed in the 2026.1 release.