ssd-steady-state · shipping · also steady-state SSD performance

SSD steady state

A workload-specific SSD performance condition in which a named metric satisfies stated stability criteria over a defined measurement window.

A passing window is conditional on workload and preparation, not a permanent property of the drive. Hesela's counterexamples separate low drift from low variation and show why a stable early plateau cannot guarantee later performance.

Relations

related

ssd-preconditioning, active-lba-range, garbage-collection, slc-cache

Limitations

• Does not establish durability, minimum speed or tail latency
• A fixed warm-up time alone is not a convergence test

Citations

1. SNIA. Solid State Storage Performance Test Specification, version 2.0.2 (1 October 2020), definitions 2.1.1, 2.1.3, 2.1.6, 2.1.13, 2.1.18 and 2.1.24. (accessed 2026-10-11)
2. Arash Tavakkol, Juan Gomez-Luna, Mohammad Sadrosadati, Saugata Ghose and Onur Mutlu. MQSim: A Framework for Enabling Realistic Studies of Modern Multi-Queue SSD Devices. FAST 2018, pp. 49-66; sections 3.2, 4.4, 5 and Appendix A. (accessed 2026-10-11)
3. Hesela: SSD steady state is not a timer; original numerical examples and limits (accessed 2026-10-11)

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