A SNIA event
September 15-17, 2025

Optimal Performance Parameters for NVMe SSDs

Tue Sep 13 | 3:05pm
Location:
Salon V
Abstract

This presentation will discuss Optimal Performance Parameters (OPTPERF and OPTRPERF) found in NVM Express® (NVMe) Section 5.8.2 of NVM Command Set Specification. Every performance parameter (NPWG, NPWA, NPDG, NPDA, NOWS, NPRG, NPRA, NORS) has several choices on setting values by SSD manufacturers. In this presentation, the differences intended for some of the parameters (Ex: NPWG vs NOWS) will be highlighted. Sometimes the parameters may be set by either NAND or SSD Controller attributes. The general impactors for setting the Optimal Performance Parameters will be discussed, and attendees will be better prepared to adjust Host SW for optimal SSD performance.

Learning Objectives

  • What are Optimal Performance Parameters?
  • Some SSD Controller and NAND attributes that may impact the Optimal Performance Parameter settings.
  • Recommended Host usage of Optimal Performance Parameters.

Download Presentation
Abstract

This presentation will discuss Optimal Performance Parameters (OPTPERF and OPTRPERF) found in NVM Express® (NVMe) Section 5.8.2 of NVM Command Set Specification. Every performance parameter (NPWG, NPWA, NPDG, NPDA, NOWS, NPRG, NPRA, NORS) has several choices on setting values by SSD manufacturers. In this presentation, the differences intended for some of the parameters (Ex: NPWG vs NOWS) will be highlighted. Sometimes the parameters may be set by either NAND or SSD Controller attributes. The general impactors for setting the Optimal Performance Parameters will be discussed, and attendees will be better prepared to adjust Host SW for optimal SSD performance.

Learning Objectives

  • What are Optimal Performance Parameters?
  • Some SSD Controller and NAND attributes that may impact the Optimal Performance Parameter settings.
  • Recommended Host usage of Optimal Performance Parameters.

PDF icon SNIA-SDC22-Helmick-Optimal-Performance-Parameters-for-NVMe-SSDs.pdf

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Dan Helmick
Samsung
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