libnvme(9)

πŸ“¦ version 3.2, in arch rolling

πŸ’… libnvme(9) β€” the API Manual, bestie edition ✨

okay so we're in the libnvme(9) part of the API Manual and today's main character is a struct, and honestly? she's kinda iconic. buckle up πŸŽ€


🌸 NAME 🌸

struct nvme_plm_config β€” Predictable Latency Mode - Deterministic Threshold Configuration Data Structure

like, say that five times fast, i dare you 😭 it's the deterministic threshold config data for Predictable Latency Mode. that's the whole vibe. no notes.


✨ SYNOPSIS ✨

here's the shape of her, copy it exactly bestie, don't freestyle:

struct nvme_plm_config {
    __le16 ee;
    __u8 rsvd2[30];
    __le64 dtwinrt;
    __le64 dtwinwt;
    __le64 dtwintt;
    __u8 rsvd56[456];
 };

look at those little reserved cushions, she's padded for safety 🫢


πŸ¦‹ Members πŸ¦‹

  • ee β€” Enable Event πŸ‘‘ that's the switch, the moment, the "we're doing this" flag.
  • rsvd2 β€” Reserved πŸ’€ not for you, bestie. hands off, it's reserved.
  • dtwinrt β€” DTWIN Reads Threshold πŸ“– the reads threshold for DTWIN. yes, rt = reads. iykyk.
  • dtwinwt β€” DTWIN Writes Threshold ✍️ the writes threshold for DTWIN. wt = writes, we love a consistent naming moment.
  • dtwintt β€” DTWIN Time Threshold ⏰ the time threshold for DTWIN. tt = time. the trio is complete and they ate.
  • rsvd56 β€” Reserved πŸ’€ again?? yes. 456 bytes of pure "don't touch". she's mysterious, she's reserved, she's not your business.
real talk: if a member says Reserved, it means Reserved. don't be the person who writes into it and then has a bad time πŸ™ˆ the struct layout is the struct layout, no cap.

and that's the whole struct, bestie β€” short, sweet, and 90% vibes by volume πŸ’œ go forth and configure your predictable latency thresholds responsibly ✨


sign-off szn πŸŽ€ this page is struct nvme_plm_config, part of libnvme(9), dated October 2026 β€” see you in the next one, mwah πŸ’‹

πŸ“¦ where this page comes from