Workload Terminology

Ave: Average Value

Fresh Out of Box (FOB): The condition of a new/unused SSD when first received from the manufacturer.  SSDs that are FOB exhibit a short period of higher performance which then levels off to a relatively sustained level of performance called Steady State.  

KiB: Block Sizes used in the SSS PTS are in units of KiB (kibibyte), where 1 kibibyte equals 1024 bytes, rather than KB (kilobyte), where 1 kilobyte equals 1000 bytes. This usage correlates with the drive logical block/sector sizes, which are typically 512 bytes (0.5 KiB) or 4096 bytes (4 KiB).

Max: Maximum Value

R: Read from the SSD

RND: Random, non-sequential reads or writes to the SSD

SEQ: Sequential reads or writes to the SSD

Steady State: Operational state of a SSD in which the performance is relatively consistent under a prescribed workload.  

W: Write to the SSD

See the SSS PTS or SSSI Glossary for a more detailed description of any of the above terms or any SSS PTS - related term.