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Yujun Zhang, ZTE Corporation, Mark Beierl, Dell EMC
StorPerf uses heat to create VMs with attached cinder volumes. The volumes are used *without* a file system (ie target=/dev/vdb). The FIO workload is run and stats collected every minute. When we get 10 samples in a row that fit within a certain range and slope, we say it is a valid measurement. This avoids false numbers due to Ceph balancing or other warm up. The metrics can be read after job completes, and there is an indicator to state if the volume metrics stabilized or not.
Storage QPI will be calculated based on the test results from storperf by QTIP. It aims to be a comparable indicator for storage performance among different platforms.